Sealing structure of floating disc guide column

Abstract

The utility model relates to the technical field of floating disc guide column sealing, in particular to a sealing structure of a floating disc guide column, which comprises floating boxes, a lower seat and a middle seat, the middle seat is arranged at the upper end of the lower seat, and a plurality of floating boxes are arranged on the outer side of the lower seat; sealing mechanisms which are in sliding connection with the guide columns, prevent media from making contact with the outside and reduce volatilization are arranged in the lower seat and the middle seat; the upper side and the lower side of the sealing mechanism are each provided with an elastic mechanism for preventing the guide column from being clamped. After the buoyancy tank is immersed in liquid, the sealing inner sleeve, the sealing film and the lower seat form a sealed space, the exposed area of a medium is isolated from the outside, so that volatilization loss is reduced, the lower seat and the sealing inner sleeve are elastically connected together through the upper elastic suspension device and the lower elastic suspension device, and it is guaranteed that the sealing inner sleeve has the freedom degree of a certain distance when the buoyancy tank moves up and down; and when sliding up and down with the guide post, the guide post is not clamped and the sealing performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing of a floating plate guide column, in particular to a sealing structure of a floating plate guide column. Background Art

[0002] During the operation of the internal floating roof of the storage tank, the volatilization loss of the accessories accounts for 10%. The existing guide column passing device needs to install functional components to realize the function that the guide column can smoothly pass through the floating plate when the internal floating roof moves up and down, so a certain area of ​​the storage medium has to be exposed to direct contact with the air, resulting in volatilization and leakage. Therefore, those skilled in the art provide a sealing structure of the floating plate guide column to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a sealing structure of a floating plate guide column, including a buoyancy box, a lower seat and a middle seat, the upper end of the lower seat is set as the middle seat, and a plurality of buoyancy boxes are set outside the lower seat:

[0004] The lower seat and the middle seat are provided with a sealing mechanism for sliding connection with the guide column and preventing the medium from contacting with the outside and reducing volatilization;

[0005] Elastic mechanisms are provided on both the upper and lower sides of the sealing mechanism to prevent the guide column from getting stuck.

[0006] Preferably, the lower seat and the middle seat are both columnar structures, and are hollow inside.

[0007] Preferably, the sealing mechanism comprises a sealing inner sleeve, which is arranged on the guide column and is made of stainless steel.

[0008] Preferably: a sealing membrane is provided at the upper end of the sealing inner sleeve, and the sealing membrane is an annular structure, and the outer side wall thereof is slidably connected with the inner walls of the lower seat and the middle seat.

[0009] Preferably: a sealing film pressing plate is arranged at the upper end of the sealing film.

[0010] Preferably, the elastic mechanism comprises an upper elastic suspension device and a lower elastic suspension device, and a plurality of the upper elastic suspension devices and the lower elastic suspension devices are provided, which are equally spaced and circumferentially distributed at the upper and lower ends of the sealing mechanism.

[0011] Preferably, six upper elastic suspension devices and six lower elastic suspension devices are provided.

[0012] Preferably: the bottom of the upper elastic suspension device is fixed on the sealing film pressure plate, and the upper end thereof is fixed on the side wall of the middle seat; one end of the lower elastic suspension device is connected to the sealing inner sleeve, and the other end is installed on the bottom of the buoyancy tank.

[0013] Technical effects and advantages of the utility model:

[0014] After the buoyancy box in the utility model is immersed in liquid, the sealing inner sleeve, the sealing film and the lower seat form a sealed space, which isolates the exposed area of ​​the medium from the outside, thereby reducing the volatilization loss. The upper and lower elastic suspension devices elastically connect the lower seat and the sealing inner sleeve together, ensuring that the sealing inner sleeve has a certain distance of freedom when the buoyancy box moves up and down, and is not stuck when sliding up and down with the guide column, while ensuring its sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a sealing structure of a floating plate guide column provided in an embodiment of the present application.

[0016] In the figure:

[0017] 1. Upper elastic suspension device; 2. Middle seat; 3. Floating box; 4. Sealing film; 5. Sealing inner sleeve; 6. Sealing film pressure plate; 7. Lower elastic suspension device. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0019] Example

[0020] See also Figure 1 In this embodiment, a sealing structure of a floating plate guide column is provided, including a buoyancy box 3, a lower seat and a middle seat 2, the upper end of the lower seat is set as the middle seat 2, the lower seat and the middle seat 2 are both columnar structures, and the interior thereof is hollow, wherein a plurality of buoyancy boxes 3 are set on the outer side of the lower seat, which is a prior art, and the specific detailed structure is not described here;

[0021] In the technical solution of the present application, a sealing mechanism is provided inside the lower seat and the middle seat 2, and the sealing mechanism can seal the guide column to avoid excessive leakage of the internal medium, so that the medium is isolated from the outside and the volatilization loss of the medium is reduced. In addition, elastic mechanisms are provided on the upper and lower sides of the sealing mechanism, and the elastic mechanism can enable the sealing mechanism to move a distance when the buoy 3 moves up and down, thereby avoiding the situation where it is stuck with the guide column;

[0022] The sealing mechanism includes a sealing inner sleeve 5, which is sleeved on the guide column. The sealing inner sleeve 5 is made of 304 stainless steel, which is durable and corrosion-resistant. A sealing membrane 4 is provided at the upper end of the sealing inner sleeve 5. The sealing membrane 4 is an annular structure, and its outer wall is slidably connected with the inner wall of the lower seat and the middle seat 2, so that when the sealing inner sleeve 5 moves up and down, it can also move together.

[0023] A sealing film pressing plate 6 is provided at the upper end of the sealing film 4, and the sealing film pressing plate 6 fixes the sealing film 4 on the top of the sealing inner sleeve 5, which plays a role of installation and fixing, and the elastic mechanism provides the possibility for the movement of the sealing mechanism, and the elastic mechanism includes an upper elastic suspension device 1 and a lower elastic suspension device 7, and the upper elastic suspension device 1 and the lower elastic suspension device 7 are both provided with a plurality of them, which are equally spaced and circumferentially distributed at the upper and lower ends of the sealing mechanism. In the present application, the upper elastic suspension device 1 and the lower elastic suspension device 7 are both provided with 6;

[0024] The bottom of the upper elastic suspension device 1 is fixed on the sealing film pressure plate 6, and the upper end thereof is fixed on the side wall of the middle seat 2, which has a pulling effect on the sealing mechanism. One end of the lower elastic suspension device 7 is connected to the sealing inner sleeve 5, and the other end is installed at the bottom of the buoyancy box 3, which realizes the supporting effect on the sealing mechanism.

[0025] Specifically, the upper elastic suspension device 1 includes an upper spring and a connecting rod. The bottom of the upper spring is connected to the sealing film pressure plate 6, and the top of the upper spring is fixed to the connecting rod. The other end of the connecting rod is fixed to the side wall of the middle seat 2. When the sealing inner sleeve 5 moves, the upper spring can play a buffering effect, so that it can move.

[0026] Similarly, the lower elastic suspension device 7 includes a support rod and a lower spring. The support rod is set to be "L"-shaped, one end of which is fixed on the buoyancy box 3, and the other end is installed with the lower spring. The top of the lower spring is connected to the sealing inner sleeve 5.

[0027] After the buoyancy box 3 in the utility model is immersed in liquid, the sealing inner sleeve 5, the sealing film 4 and the lower seat form a sealed space, isolating the exposed area of ​​the medium from the outside, thereby reducing the volatile loss. The upper and lower elastic suspension devices elastically connect the lower seat and the sealing inner sleeve 5 together, ensuring that the sealing inner sleeve 5 has a certain distance of freedom in six directions when the buoyancy box 3 moves up and down, and is not stuck when sliding up and down with the guide column;

[0028] By adding a sealing inner sleeve 5 and a sealing membrane 4, 97% of the exposed area in the device is isolated from the air, thereby reducing most of the volatilization losses; by adding an elastic suspension device, with the cooperation of the sealing membrane 4 and the sealing inner sleeve 5, the guide column can pass smoothly through the sealing inner sleeve 5 during the up and down movement of the buoy 3 without being stuck and its sealing performance is guaranteed.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A sealing structure of a floating plate guide column, comprising a buoyancy box (3), a lower seat and a middle seat (2), wherein the upper end of the lower seat is arranged as the middle seat (2), and a plurality of buoyancy boxes (3) are arranged outside the lower seat, characterized in that: The lower seat and the middle seat (2) are provided with a sealing mechanism for sliding connection with the guide column and preventing the medium from contacting with the outside and reducing volatilization; Elastic mechanisms are provided on both the upper and lower sides of the sealing mechanism to prevent the guide column from getting stuck.

2. The sealing structure of a floating plate guide column according to claim 1, characterized in that: The lower seat and the middle seat (2) are both columnar structures, and are hollow inside.

3. The sealing structure of a floating plate guide column according to claim 1, characterized in that: The sealing mechanism comprises a sealing inner sleeve (5), which is sleeved on the guide column and is made of (304) stainless steel.

4. A sealing structure for a floating plate guide column according to claim 3, characterized in that: The upper end of the sealing inner sleeve (5) is provided with a sealing membrane (4), which is an annular structure, and the outer wall of which is slidably connected with the inner walls of the lower seat and the middle seat (2).

5. The sealing structure of a floating plate guide column according to claim 4, characterized in that: A sealing film pressing plate (6) is arranged at the upper end of the sealing film (4).

6. The sealing structure of a floating plate guide column according to claim 1, characterized in that: The elastic mechanism comprises an upper elastic suspension device (1) and a lower elastic suspension device (7), and a plurality of the upper elastic suspension devices (1) and the lower elastic suspension devices (7) are provided, which are evenly spaced and circumferentially distributed at the upper and lower ends of the sealing mechanism.

7. The sealing structure of a floating plate guide column according to claim 6, characterized in that: Six upper elastic suspension devices (1) and six lower elastic suspension devices (7) are provided.

8. The sealing structure of a floating plate guide column according to claim 7, characterized in that: The bottom of the upper elastic suspension device (1) is fixed on the sealing film pressure plate (6), and the upper end is fixed on the side wall of the middle seat (2). One end of the lower elastic suspension device (7) is connected to the sealing inner sleeve (5), and the other end is installed on the bottom of the buoyancy box (3).

Images