Floating roof device of crude benzene tank

Abstract

The utility model provides a floating roof device of a crude benzene tank, which comprises a material ejection outlet pipe, a floating roof tray II and a bottom cavity, the lower end of the material ejection outlet pipe is provided with a group of tank bodies for storing crude benzene materials, the outer side of the upper end of each tank body is provided with a group of top fences, the tank body is internally provided with a group of inner cavities for storing the crude benzene materials, and the floating roof tray II is arranged in the bottom cavity. A set of second floating roof discs used for providing floating roof operation in the inner cavity are arranged in the inner cavity, each second floating roof disc comprises a piston pressing ring and an inner supporting plate, the piston pressing rings are made of a rubber material, a plurality of sets of piston pressing rings are arranged, and a set of inner floating plates used for providing buoyancy for the second floating roof discs are arranged on the inner side of the piston pressing ring at the uppermost end. Compared with the prior art, the floating roof device has the following beneficial effects that along with the rising of the liquid level of a crude benzene material, the guide insert block in the floating roof tray II can keep the floating roof tray II to vertically move up and down along with the liquid level of the crude benzene material, so that the situation that the evaporation capacity of the crude benzene material is increased due to angle overturning generated in the floating roof process of the floating roof tray II is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to crude benzene tank floating roof technical field relates to a crude benzene tank floating roof device. BACKGROUND

[0002] In the process of oil refining, crude benzene tank is used for storing crude benzene, and floating roof tank is one of the common designs, and the floating roof can float with the rise and fall of the liquid level in the tank to reduce the volatile loss and prevent air from entering. However, when the existing crude benzene tank cannot move vertically up and down in the floating roof process, there are several shortcomings. First, the floating roof cannot freely rise and fall, which will increase the contact area between the liquid in the tank and the atmosphere, thereby increasing the volatile loss and the risk of environmental pollution. The friction between the floating roof and the tank wall increases, which may cause damage to the floating roof structure, affect its sealing performance, and thus cause safety risks.

[0003] The causes of these shortcomings are usually related to improper design of the floating roof, deformation of the tank body structure, volume expansion or contraction caused by temperature changes of the liquid in the tank, and changes in the pressure in the tank. In order to deal with these shortcomings, the conventional method includes regularly checking and maintaining the sealing device of the floating roof to ensure its flexibility and sealing performance; adjusting the tank body structure to reduce deformation, so there is an urgent need for a crude benzene tank floating roof device to solve the above problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a crude benzene tank floating roof device to solve the problems raised in the background art.

[0005] The utility model realizes the following technical scheme: a crude benzene tank floating roof device, comprising: a top material outlet pipe and a bottom cavity, the top material outlet pipe lower end is equipped with a group of tank bodies for storing crude benzene materials, the tank body upper end outer side is equipped with a group of top bars, the tank body inside is equipped with a group of inner cavities for storing crude benzene materials, the inner cavity inside is equipped with a group of floating roof disc two for providing floating roof operation in the inner cavity;

[0006] The floating roof disc two includes a piston compression ring and an inner support plate, the piston compression ring is made of a rubber material, and is provided with a plurality of groups, the uppermost end of the piston compression ring inner side is equipped with a group of inner floating plates for providing buoyancy for the floating roof disc two, the inner floating plate is a circular structure in plan view, and is made of a foam material, the lower end of the uppermost end of the inner floating plate is equipped with a group of inner support plates for supporting it, the inner support plate and the inner floating plate have the same plan view cross-sectional structure, and are connected and fixed.

[0007] As a preferred embodiment, a group of inner support plates is arranged between every two groups of the inner floating plates, and the inner floating plates are arranged in three groups. An outer side of each group of the inner floating plates and each group of the inner support plates is provided with a group of piston compression rings for sealing contact with the inner wall of the inner cavity. When the staff introduces the external crude benzene material into the inner cavity through the feeding pipe, the impurities in the crude benzene material will be intercepted by the bottom filter screen during the slow rising of the liquid level in the inner cavity. The crude benzene material entering the inner cavity will not rub and damage the sealing elements in the floating roof disc two and the floating roof disc one. With the rising of the liquid level of the crude benzene material, the guide block in the floating roof disc two can keep the floating roof disc two vertically moving up and down with the liquid level of the crude benzene material, thereby preventing the floating roof disc two from turning over during the floating process to increase the evaporation amount of the crude benzene material.

[0008] As a preferred embodiment, a plurality of groups of the piston compression rings are arranged in a vertical direction and form an inner sealing piston group. The lower end of the inner cavity is provided with a bottom filter screen for filtering and intercepting the impurities in the crude benzene material. When the crude benzene material passes through the bottom filter screen and enters the inner cavity, the liquid crude benzene material will flow upward through the bottom filter screen, and the bottom filter screen will intercept the impurities in the crude benzene material and prevent the impurities from entering the inner cavity to affect the sealing contact surface between the piston compression ring and the inner wall of the inner cavity, thereby improving the evaporation sealing effect of the crude benzene material in the inner cavity.

[0009] As a preferred embodiment, the lower end of the bottom filter screen is provided with a bottom cavity for introducing the external crude benzene material from bottom to top. The lower end of the outer side of the tank body is provided with a plurality of support seats for connecting and fixing with the support legs.

[0010] As a preferred embodiment, the lower end of each group of the support seats is provided with a group of support legs for supporting the tank body. The inside of the top discharge pipe is provided with a top cavity for discharging the crude benzene material. The inside of the top discharge pipe is provided with an inner guide pipe at the upper end for discharging the crude benzene material.

[0011] As a preferred embodiment, the inner guide pipe and the top discharge pipe are connected and fixed with each other inside the upper end. The inner guide pipe and the top cavity are in communication with each other. The top cavity is provided with a floating roof disc one at the middle position for floating operation of the crude benzene material in the top discharge tank.

[0012] As a preferred embodiment, the inner side of the top cavity is provided with a limiting inner lining at the lower end for limiting and supporting the lower end of the floating roof disc two. The outer side of the floating roof disc one is sealingly attached to the inner wall of the top cavity.

[0013] As a preferred embodiment, the floating roof disc one is provided with an inner sealing embedded hole at the middle position for sealingly attaching to the inner guide pipe. When the floating roof disc one moves upward, the inner guide pipe and the inner sealing embedded hole are sealingly attached to each other.

[0014] After the technical scheme is applied, the crude benzene tank's floating roof device has the beneficial effects that: during the slow rising of the liquid level of the crude benzene material in the inner cavity, the impurities in the crude benzene material can be intercepted by the bottom filter screen, the crude benzene material entering the inner cavity cannot rub and damage the sealing elements in the floating roof disc two and the floating roof disc one, and with the rising of the liquid level of the crude benzene material, the guide block in the floating roof disc two can keep the floating roof disc two vertically moving up and down with the liquid level of the crude benzene material, so as to prevent the floating roof disc two from turning over during the floating process and increase the evaporation amount of the crude benzene material;

[0015] When the crude benzene material enters the inner cavity through the bottom filter screen, the liquid crude benzene material can flow upward through the bottom filter screen, and the bottom filter screen can intercept the impurities in the crude benzene material and prevent the impurities from entering the inner cavity to affect the sealing contact surface between the piston compression ring and the inner wall of the inner cavity, so as to improve the evaporation sealing effect of the crude benzene material in the inner cavity. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a front view structure schematic diagram of the crude benzene tank's floating roof device of the present application;

[0018] Figure 2 It is a left oblique front side sectional structure schematic diagram of the inner cavity of the crude benzene tank's floating roof device of the present application;

[0019] Figure 3 It is a top view structure schematic diagram of the floating roof disc two in the crude benzene tank's floating roof device of the present application;

[0020] Figure 4 It is Figure 2 It is an enlarged schematic diagram of structure A in the figure;

[0021] In the figure: 100-top material outlet pipe, 110-top rail, 120-tank body, 130-limiting snap ring, 140-supporting seat, 150-supporting leg, 160-feeding pipe, 170-inner guide pipe, 180-top cavity, 190-floating roof disc one, 200-top cavity, 210-floating roof disc two, 220-bottom filter screen, 230-bottom cavity;

[0022] 21a-piston compression ring, 21b-guide block, 21c-inner floating plate, 21d-inner supporting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 A floating roof device of a crude benzene tank, comprising: a top material outlet pipe 100, a floating roof plate two 210 and a bottom cavity 230, the lower end of the top material outlet pipe 100 is provided with a group of tank bodies 120 for storing crude benzene materials, the outer side of the upper end of the tank body 120 is provided with a group of top bars 110, the inside of the tank body 120 is provided with a group of inner cavities 200 for storing crude benzene materials, and the inside of the inner cavity 200 is provided with a group of floating roof plates two 210 for providing floating roof operation in the inner cavity 200;

[0025] The floating roof plate two 210 comprises a piston compression ring 21a and an inner support plate 21d, the piston compression ring 21a is made of a rubber material and is provided with a plurality of groups, the inner side of the uppermost piston compression ring 21a is provided with a group of inner floating plates 21c for providing buoyancy for the floating roof plate two 210, the inner floating plate 21c is in a circular structure in a top view cross section and is made of a foam material, and the lower end of the uppermost inner floating plate 21c is provided with a group of inner support plates 21d for supporting the inner floating plate 21c, the inner support plate 21d has the same structure as the inner floating plate 21c in a top view cross section and is connected and fixed.

[0026] Please refer to Figures 1-4 As a first embodiment of the utility model: a group of inner support plates 21d are arranged between every two groups of inner floating plates 21c, the inner floating plates 21c are provided with three groups in total, and the outer side of each group of inner floating plates 21c and each group of inner support plates 21d is provided with a group of piston compression rings 21a for sealing contact with the inner wall of the inner cavity 200, when the staff introduces the external crude benzene material into the inner cavity 200 through the feeding pipe 160, the impurities in the crude benzene material can be intercepted by the bottom filter screen 220 during the slow rising of the liquid level of the crude benzene material in the inner cavity 200, the crude benzene material entering the inner cavity 200 cannot cause friction damage to the sealing elements in the floating roof plate two 210 and the floating roof plate one 190, and the guide blocks 21b in the floating roof plate two 210 can keep the floating roof plate two 210 vertically moving up and down along with the liquid level of the crude benzene material, so that the angle of the floating roof plate two 210 during the floating process is prevented from turning over to increase the evaporation amount of the crude benzene material.

[0027] Please refer to Figures 1-4As the second embodiment of the utility model: based on the above embodiment, further, if a plurality of groups of piston compression ring 21a is arranged in vertical direction, and a plurality of groups of piston compression ring 21a constitutes a group of inner sealing piston group, the lower end of inner cavity 200 is provided with a group of bottom filter screen 220 for filtering and intercepting the internal impurities of crude benzene material, when the crude benzene material passes through bottom filter screen 220 and enters the inside of inner cavity 200, the liquid crude benzene material will flow upwards through bottom filter screen 220, and the bottom filter screen 220 will intercept the internal impurities of crude benzene material and prevent the impurities of crude benzene material from entering the inside of inner cavity 200 to affect the sealing contact surface of piston compression ring 21a and the inner wall of inner cavity 200, so as to improve the evaporation sealing effect of crude benzene material in the inside of inner cavity 200.

[0028] The lower end of bottom filter screen 220 is provided with a group of bottom cavity 230 for guiding the crude benzene material from outside to top, and the lower end of the outer side of tank body 120 is provided with a plurality of groups of support seat 140 for being connected and fixed with support leg 150.

[0029] The lower end of each group of support seat 140 is provided with a group of support leg 150 for supporting tank body 120, and the inside of top material outlet pipe 100 is provided with top cavity 180 for guiding the crude benzene material to export, and the inside of top material outlet pipe 100 is provided with a group of inner guide pipe 170 for guiding the crude benzene material to discharge.

[0030] The inner guide pipe 170 and the upper end of the inside of top material outlet pipe 100 are connected and fixed with each other, the inside of inner guide pipe 170 and the inside of top cavity 180 are communicated with each other, and the inside of top cavity 180 is provided with a group of floating roof disc 190 for floating roof operation of the crude benzene material in the inside of top material storage tank.

[0031] The lower end of the inside of top cavity 180 is provided with a group of limiting inner lining for limiting and supporting the lower end of floating roof disc 190, and the outer side of floating roof disc 190 and the inner wall of top cavity 180 are sealingly attached.

[0032] The middle position of floating roof disc 190 is provided with a group of inner sealing embedded hole for sealingly attaching with inner guide pipe 170, and when floating roof disc 190 moves upwards, the inner guide pipe 170 and the inner sealing embedded hole are sealingly embedded with each other.

[0033] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A floating roof apparatus for a crude benzene tank, comprising: The top material outlet pipe (100), the second floating roof disc (210), the bottom filter screen (220) and the bottom cavity (230) are characterized in that: the top material outlet pipe (100) is provided with a group of tank bodies (120) for storing crude benzene materials at the lower end, a group of top bars (110) are arranged on the outer side of the upper end of the tank body (120), and a group of inner cavities (200) for storing crude benzene materials are arranged in the tank body (120). The second floating roof disc (210) includes a piston compression ring (21a), a guide block (21b), an inner floating plate (21c) and an inner support plate (21d), the piston compression ring (21a) is made of rubber material and is provided with a plurality of groups, the inner side of the uppermost piston compression ring (21a) is provided with an inner floating plate (21c) for providing buoyancy for the second floating roof disc (210), the inner floating plate (21c) is circular in cross-sectional view and is made of a foam material, and the lower end of the uppermost inner floating plate (21c) is provided with an inner support plate (21d) for supporting the inner floating plate (21c), the inner support plate (21d) has the same structure as the inner floating plate (21c) in cross-sectional view and is connected and fixed.

2. A floating roof apparatus for a crude benzene tank according to claim 1, characterized in that: An inner support plate (21d) is arranged between every two groups of inner floating plates (21c), and there are three groups of inner floating plates (21c), and an inner support plate (21d) is arranged on the outer side of each group of inner floating plates (21c) and each group of inner support plates (21d), and each group of inner floating plates (21c) and each group of inner support plates (21d) are provided with a piston compression ring (21a) for sealing contact with the inner wall of the inner cavity (200).

3. A floating roof apparatus for a crude benzene tank as claimed in claim 2, characterized in that: A plurality of groups of piston compression rings (21a) are arranged in a vertical direction and form an inner sealing piston group, and the lower end of the inner cavity (200) is provided with a bottom filter screen (220) for filtering and blocking impurities in the crude benzene materials.

4. A floating roof apparatus for a crude benzene tank as defined in claim 3, characterized in that: The bottom filter screen (220) is provided with a bottom cavity (230) at the lower end for guiding the crude benzene materials from the outside to the top, and the outer side of the lower end of the tank body (120) is provided with a plurality of support seats (140) for connecting and fixing the support legs (150).

5. A floating roof apparatus for a crude benzene tank as defined in claim 4, characterized in that: The lower end of each group of support seats (140) is provided with a support leg (150) for supporting the tank body (120), the inner part of the top material outlet pipe (100) is provided with a top cavity (180) for guiding the crude benzene materials, and the inner part of the top material outlet pipe (100) is provided with an inner guide pipe (170) at the upper end for guiding the crude benzene materials to be discharged.

6. A floating roof apparatus for a crude benzene tank as defined in claim 5, characterized in that: The inner guide pipe (170) is connected and fixed with the inner part of the upper end of the top material outlet pipe (100), the inner part of the inner guide pipe (170) is in communication with the inner part of the top cavity (180), and the inner part of the top cavity (180) is provided with a first floating roof disc (190) at the middle position for floating the crude benzene materials in the top material storage tank.

7. A floating roof apparatus for a crude benzene tank as defined in claim 6, characterized in that: The inner side of the lower end of the top cavity (180) is provided with a limiting inner lining for limiting and supporting the lower end of the first floating roof disc (190), and the outer side of the first floating roof disc (190) is sealingly attached to the inner wall of the top cavity (180).

8. A floating roof apparatus for a crude benzene tank as defined in claim 7, characterized in that: The inner sealing holes are arranged in the middle position of the first floating roof disc (190) and used for sealingly fitting with the inner guide pipe (170). When the first floating roof disc (190) moves upward, the inner guide pipe (170) and the inner sealing holes are sealingly fitted with each other.

Images