CN216948639U

CN216948639U - Combustible liquid loading and unloading platform

Info

Publication number: CN216948639U
Application number: CN202220355770.8U
Authority: CN
Inventors: 范禹彤; 白云娥; 赵鹏
Original assignee: Tianjin Chenli Engineering Design Co ltd
Current assignee: Tianjin Chenli Engineering Design Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-07-12
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a combustible liquid loading and unloading trestle, which comprises a terrace, a cofferdam and a trench; the trench is positioned at one side opposite to the inlet and the outlet; the terrace is provided with a slope, the lower side of the terrace is close to the trench, and the higher side of the terrace is close to the inlet and the outlet; in the cofferdam, the cofferdam at the inlet and outlet is a gentle slope cofferdam. In the process that the tank car enters or exits from the parking space, the tank car does not pass through a trench, the trench cannot be rolled, and deformation or collapse of a bearing cover plate above the trench cannot be caused. Therefore, the trench in the utility model can be a non-heavy-load trench, and the construction investment and the later maintenance cost are saved. The cofferdam at the inlet and outlet is a gentle slope cofferdam, so that the effect of blocking the cofferdam is achieved, the loading and unloading tank car is guaranteed not to have obvious jolt when entering and exiting, and the loading and unloading tank car is convenient to enter and exit.

Description

Combustible liquid loading and unloading platform

Technical Field

The utility model relates to the technical field of petrochemical industry, in particular to a combustible liquid loading and unloading trestle.

Background

The loading and unloading trestle is the main device facility for the entry and exit of petrochemical raw materials and products. Due to the particularity of petrochemical materials and products, accidents can be caused by slight negligence.

At present, the conventional loading and unloading trestle is provided with a ring ditch around the trestle to collect rainwater or leaked combustible liquid and prevent the combustible liquid from overflowing the trestle. And a bearing cover plate needs to be laid above the annular groove to meet the requirement that the loading and unloading tank car enters and exits the trestle. However, due to repeated rolling of the loading and unloading tank car, the bearing cover plate laid above the circular trench is often deformed or collapsed, so that the loading and unloading tank car cannot smoothly pass through the circular trench or jolts. The ring trench for entering and exiting the trestle is often the object of modification in the production process of petrochemical enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a combustible liquid loading and unloading platform aiming at the technical defect that a bearing cover plate at an annular groove in the existing loading and unloading platform is easy to deform and collapse so as to influence the smooth passing of a tank car.

The technical scheme adopted for realizing the purpose of the utility model is as follows:

a combustible liquid loading and unloading platform comprises a terrace, a cofferdam and a trench;

the trench is positioned at one side opposite to the inlet and the outlet;

the terrace is provided with a slope, the lower side of the terrace is close to the trench, and the higher side of the terrace is close to the inlet and the outlet;

in the cofferdam, the cofferdam at the inlet and outlet is a gentle slope cofferdam.

In the technical scheme, the gentle slope cofferdam is a convex structure with a high middle part and two low sides; the highest point of the floor is 100mm higher than that of the terrace; the slope of the two sides of the highest point is 5-10 degrees.

In the technical scheme, the gentle slope cofferdam sequentially comprises a plain soil rammed layer, a gravel grouting cement mortar layer and an impervious concrete layer from bottom to top; and reinforcing steel bars are arranged in the impervious concrete layer.

In the technical scheme, the impervious concrete layer is made of non-sparking impervious concrete.

In the technical scheme, a water collecting pit is arranged at one end of the trench.

In the technical scheme, in the cofferdam, the cofferdam except the inlet and the outlet is a step cofferdam; the trench is positioned on the inner side of the step cofferdam.

In the technical scheme, the step cofferdam sequentially comprises a plain soil rammed layer, a gravel cement mortar layer and an impervious concrete layer from bottom to top; the plain soil rammed layer and the gravel cement mortar grouting layer are in a ladder shape; impervious concrete layer includes with the connecting portion of terrace equal height, deepen the below-ground steady portion and outstanding spacer portion in terrace height.

In the technical scheme, the gradient of the terrace is 5 per thousand.

In the technical scheme, the terrace is provided with a loading and unloading crane pipe and a loading and unloading pump.

In the technical scheme, a rain-proof shed and a pipe gallery are arranged above the terrace; the pipe gallery is positioned right above the loading and unloading crane pipe; the height of weather enclosure is higher than the height of piping lane.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the combustible liquid loading and unloading platform provided by the utility model, the trench is positioned on the opposite side of the inlet and the outlet. In the process that the tank car enters or exits the parking space, the tank car does not pass through the trench, the trench cannot be rolled, and deformation or collapse of the bearing cover plate above the trench cannot be caused. Therefore, the trench in the utility model can be a non-heavy-load trench, and the construction investment and the later maintenance cost are saved.

2. According to the combustible liquid loading and unloading trestle provided by the utility model, the cofferdam at the inlet and outlet is a gentle slope cofferdam, so that the effect of blocking the cofferdam is achieved, and meanwhile, the loading and unloading tanker is ensured not to have obvious jolt when entering and exiting, and is convenient to enter and exit.

3. The combustible liquid loading and unloading platform provided by the utility model has a gradient terrace, wherein the lower side of the terrace is close to a trench, and the higher side of the terrace is close to an inlet and an outlet. When the loading and unloading tank car unloads, the discharge opening is positioned at the lower side, so that the materials in the tank car can be discharged as much as possible.

Drawings

FIG. 1 is a schematic plan view of a combustible liquid loading dock;

FIG. 2 is a cross-sectional view of the gentle slope cofferdam;

FIG. 3 shows a cross-sectional view of a stepped cofferdam;

fig. 4 is a side view of the flammable liquid loading/unloading platform.

In the figure: 1-terrace, 2-cofferdam, 2-1-gentle slope cofferdam, 2-2-ladder cofferdam, 3-trench, 4-loading and unloading crane pipe, 5-loading and unloading pump, 6-weather enclosure; 7-water accumulation pit; 8-pipe gallery;

a-a plain soil ramming layer, b-a gravel cement mortar grouting layer, c-an impervious concrete layer, c 1-a connecting part, c 2-a stabilizing part and c 3-a blocking part.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.

Example 1

A combustible liquid loading and unloading platform is shown in figure 1 and is integrally rectangular and comprises a terrace 1, a cofferdam 2 and a trench 3;

the west side is the position of the inlet and outlet of the tank wagon, and the trench 3 is positioned at the opposite side of the inlet and outlet of the east side, so that the tank wagon is prevented from passing through the trench 3;

the terrace 1 has a gradient which is 5 per thousand in height, west and east; the lower side of the device is close to the trench 3, and the higher side is close to the inlet and outlet; when the tank car unloads, the tail of the tank car faces the trench 3; at the moment, the discharge opening is positioned at the lower side, so that the materials in the tank wagon can be discharged as much as possible, and the liquid in the tank wagon is reduced.

In the cofferdam 2, the cofferdam 2 at the inlet and outlet (west side) is a gentle slope cofferdam 2-1. The cofferdams except the inlet and the outlet (on the east, south and north sides) are step cofferdams 2-2; the trench 3 is positioned at the inner side of the step cofferdam 2-2.

One end of the trench 3 is also provided with a sump 7.

When the combustible liquid loading and unloading platform is loaded and unloaded, the tank wagon backs from the west side and enters the platform, and then moves forwards to the west and exits the platform after loading and unloading are finished. The trench 3 on the east side is not in the driving area of the tank car, so that the tank car can be effectively prevented from rolling the trench and the bearing cover plate paved above the trench, and the trench is ensured to be flat in appearance without deformation or collapse.

Example 2

In this embodiment, the detailed structure of the cofferdam 2 will be described based on embodiment 1.

The gentle slope cofferdam 2-1 is a convex structure with a high middle part and two low sides as shown in figure 2; the highest point of the floor is 100mm higher than that of the floor, so that leaked liquid can be effectively blocked; the slopes of the two sides of the highest point are 5-10 degrees, so that the vehicle cannot bump obviously during running, and the vehicle can pass stably. The height of the gentle slope cofferdam 2-1 can be specifically set according to different project conditions.

The gentle slope cofferdam 2-1 sequentially comprises a plain soil tamping layer a, a gravel grouting cement mortar layer b and an impervious concrete layer c from bottom to top. In order to increase the weighing and pressure resistance capacity of the anti-seepage concrete layer c, steel bars are arranged in the anti-seepage concrete layer c. If the handling product belongs to the first or second dangerous chemicals, in order to ensure the flame retardant property, the impervious concrete layer c is preferably made of non-ignition impervious concrete.

The step cofferdam 2-2 comprises a plain soil tamped layer a, a gravel cement mortar poured layer b and an impervious concrete layer c (internally provided with steel bars) from bottom to top in sequence as shown in figure 3; the plain soil tamping layer a and the gravel grouting cement mortar layer b are in a step shape; the impervious concrete layer c (internal reinforcing steel bars) comprises a connecting part c1 with the same height as the terrace, a stabilizing part c2 extending into the ground and a baffle part c3 protruding out of the height of the terrace.

Example 3

This embodiment is described based on embodiment 1 or 2 in terms of the overall arrangement thereof.

In the technical scheme, a loading and unloading crane pipe 4 and a loading and unloading pump 5 are arranged and mounted on the terrace 1.

In the technical scheme, a rain-proof shed 6 and a pipe gallery 8 are arranged above the terrace 1; the pipe gallery 8 is positioned right above the loading and unloading crane pipe 4; the height of weather enclosure 6 is higher than the height of pipe gallery 8.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the figures for ease of description. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, and do not necessarily require or imply any actual relationship or order between such elements.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and adaptations can be made without departing from the principle of the present invention, and such modifications and adaptations should also be considered as the scope of the present invention.

Claims

1. A combustible liquid loading and unloading trestle is characterized by comprising a terrace, a cofferdam and a trench;

the trench is positioned at one side opposite to the inlet and the outlet;

in the cofferdam, the cofferdam at the inlet and the outlet is a gentle slope cofferdam.

2. The combustible liquid loading and unloading stack platform of claim 1, wherein the gentle slope cofferdam is a raised structure with a high middle and two low sides; the slope of the two sides of the highest point is 5-10 degrees.

3. The combustible liquid loading and unloading stack platform of claim 2, wherein the gentle slope cofferdam comprises a rammed earth layer, a gravel cement mortar layer and an impervious concrete layer from bottom to top in sequence; and reinforcing steel bars are arranged in the impervious concrete layer.

4. The combustible liquid loading stack platform of claim 3 wherein the impervious concrete layer is non-pyrophoric impervious concrete.

5. The combustible liquid loading stack platform of claim 1 wherein one end of the trench is provided with a sump.

6. The flammable liquid handling stack platform of claim 1, wherein the cofferdam of the cofferdam is a stepped cofferdam except for the access opening; the trench is positioned on the inner side of the step cofferdam.

7. The combustible liquid loading and unloading stack platform of claim 6, wherein the step cofferdam comprises a rammed earth layer, a gravel cement mortar layer and an impervious concrete layer from bottom to top in sequence; the plain soil rammed layer and the gravel cement mortar layer are in a step shape; impervious concrete layer includes with the floor connecting portion of the same height, go deep into below the ground steady portion and outstanding fender portion in floor height.

8. The combustible liquid loading and unloading stack platform of claim 1, wherein the grade of the floor is 5% o.

9. The combustible liquid loading stack platform of claim 1 wherein a loading arm and a loading pump are mounted on the terrace.

10. The combustible liquid loading and unloading trestle of claim 9, wherein a rain-proof shed and a pipe gallery are arranged above the terrace; the pipe gallery is positioned right above the loading and unloading crane pipe; the height of weather enclosure is higher than the height of piping lane.