Box-type full-skid-mounted LNG (Liquefied Natural Gas) filling device impounding pool structure

Abstract

The utility model discloses a box type full skid-mounted LNG filling device impounding pool structure which comprises an impounding pool, the bottom of the impounding pool is connected with a bottom plate in a welded mode, the bottom of the bottom plate is provided with a first water collecting pit, a second water collecting pit and a third water collecting pit, the first water collecting pit is located in the center of the bottom of the bottom plate, and the second water collecting pit is located in the center of the bottom of the bottom plate. The bottom end of the first water collection pit is fixedly connected with a first water drainage pipe, two slope plates are arranged in the bottom plate in a bilateral symmetry mode, and the lowest ends of the two slope plates point to the first water collection pit. The ice blockage risk is reduced, so that the drainage system is kept unblocked, gravity drainage is used for replacing or assisting pump drainage, energy consumption can be reduced, the operation cost is reduced, the drainage structure can be simplified through reasonable gradient design of the gradient plate, complex pipeline layout and additional equipment installation are reduced, and therefore the construction and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of impoundment tank structures, in particular to a box-type fully skid-mounted LNG filling device impoundment tank structure. Background Art

[0002] The stainless steel impoundment tank in the box-type fully skid-mounted LNG bunkering device is a safety facility for storing LNG that may leak from the equipment. The bottom plate drainage structure of the impoundment tank is an important part of the system.

[0003] The bottom plate of the impoundment tank is usually designed to be corrosion-resistant stainless steel to withstand the erosion of low-temperature LNG. The drainage structure includes a sump and a drainage pipe connected to it. The sump is used to collect condensed water. The sump is a concentration point where all condensed water will eventually lead the liquid.

[0004] The existing impoundment tank is an integral flat plate. Since the stainless steel bottom plate is easily deformed during the manufacturing process, some accumulation occurs when the condensed water is discharged into the sump.

[0005] Therefore, in order to solve the problem of condensate discharge and accumulation, a reasonable slope is proposed for the drainage structure of the bottom plate of the impoundment pond, so that the condensate can flow naturally to the sump. The setting of the slope needs to ensure that the water can flow smoothly without external force. Utility Model Content

[0006] The purpose of the utility model is to provide a box-type fully skid-mounted LNG filling device impoundment tank structure to solve the problems raised in the above-mentioned background technology.

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

[0008] The box-type fully skid-mounted LNG filling device impoundment tank structure comprises an impoundment tank, the bottom of which is welded to a bottom plate, the bottom of which is provided with a first sump, a second sump and a third sump, the first sump is located at the center of the bottom of the bottom plate, the bottom end of the first sump is fixedly connected to a first drain pipe, a slope plate is provided inside the bottom plate, two slope plates are symmetrically provided, and the lowest ends of the two slope plates point to the first sump.

[0009] In a preferred embodiment of the utility model, a second water collection pit is provided on the inner wall of the bottom plate, two second water collection pits are symmetrically arranged on the left and right, a third water collection pit is provided on the outer side of the two second water collection pits, and the inner wall at the bottom end of the third water collection pit is fixedly connected to the second drain pipe.

[0010] In a preferred embodiment of the present utility model, the base plate is made of stainless steel, the bottom end of the base plate is .mm thick, and the first sump is a pump pool.

[0011] In a preferred embodiment of the present utility model, the height of the pump pool is millimeters, and DN sewage valves are installed at the bottom of the first sump, the second sump, and the third sump.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0013] Setting up a slope plate to guide the condensate to the low point helps to concentrate heat and reduce the risk of ice blockage, thereby keeping the drainage system unobstructed. Rapid discharge of condensate can reduce the risk of LNG vapor accumulation in the pool and reduce potential safety hazards. Using gravity drainage instead of or to assist pump drainage can reduce energy consumption and operating costs. Reasonable slope design of the slope plate can simplify the drainage structure, reduce complex pipeline layout and additional equipment installation, thereby reducing construction and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the top view of the structure of the box-type fully skid-mounted LNG bunkering device impoundment tank;

[0016] Figure 2 This is a schematic diagram of the top view of the bottom plate in the impoundment tank structure of the box-type fully skid-mounted LNG bunkering device.

[0017] In the figure: impoundment tank 1, bottom plate 2, slope plate 3, first collection pit 4, second collection pit 5, first drainage pipe 6, third collection pit 7, second drainage pipe 8. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] Example 1: Figure 1 and 2, including a retaining tank 1, which is a retaining tank 1 used in a box-type fully skid-mounted LNG filling device, and a bottom plate 2 is welded to the bottom of the retaining tank 1, and a first sump 4, a second sump 5 and a third sump 7 are arranged at the bottom of the bottom plate 2. The first sump 4 is located at the center of the bottom of the bottom plate 2, and the bottom end of the first sump 4 is fixedly connected to a first drain pipe 6. A slope plate 3 is arranged inside the bottom plate 2, and two slope plates 3 are symmetrically arranged on the left and right, and the bottom ends of the two slope plates 3 point to the first sump 4.

[0020] The specific usage scenario of this embodiment is: by setting the slope plate 3, the bottom of the base plate 2 is appropriately sloped, which can promote the condensed water to flow along the base plate 2 to the drainage ditch and the first sump 4, speed up the drainage speed, and reduce the water accumulation time. The slope plate 3 is set to guide the condensed water to flow to the low point, which helps to concentrate heat and reduce the risk of ice blockage, thereby maintaining the smooth flow of the drainage system. The rapid discharge of condensed water can reduce the risk of LNG vapor accumulation in the pool and reduce potential safety hazards. The use of gravity drainage instead of or auxiliary pump drainage can reduce energy consumption and reduce operating costs. The reasonable slope design of the slope plate 3 can simplify the drainage structure, reduce complex pipeline layout and additional equipment installation, thereby reducing construction and maintenance costs.

[0021] Example 2: Figure 1 and Figure 2 The inner wall of the bottom plate 2 is provided with a second water collection pit 5, and two second water collection pits 5 are symmetrically arranged on the left and right. A third water collection pit 7 is provided outside the two second water collection pits 5, and the inner wall at the bottom end of the third water collection pit 7 is fixedly connected to a second drainage pipe 8.

[0022] The specific usage scenario of this embodiment is: the second drain pipe 8 is provided to drain the bottom of the base plate 1 .

[0023] Example 3: Figure 1 and Figure 2 The base plate 2 is made of stainless steel, the bottom thickness of the base plate 2 is 1.5 mm, the first sump 4 is a pump pool, the height of the pump pool is 100 mm, and the bottoms of the first sump 4, the second sump 5, and the third sump 7 are all equipped with DN25 sewage valves.

[0024] The specific usage scenario of this embodiment is: by setting the first sump 4 as a pump pool, it is convenient to use gravity drainage instead of or assist pump drainage, which can reduce energy consumption and lower operating costs.

[0025] The working principle of the utility model is: when used, technical personnel in this field can promote condensed water to flow along the bottom plate to the drainage ditch and the sump through an appropriate slope, thereby speeding up the drainage speed and reducing the water accumulation time. The condensed water is guided to flow to the low point by the slope, which helps to concentrate heat and reduce the risk of ice blockage, thereby keeping the drainage system unobstructed. Proper slope design can reduce the maintenance workload caused by the accumulation of condensed water, because the drainage is more efficient and the frequency of blockage and cleaning is reduced. Rapid discharge of condensed water can reduce the risk of LNG vapor accumulation in the pool and reduce potential safety hazards. Using gravity drainage instead of or assisting pump drainage can reduce energy consumption and reduce operating costs. Reasonable slope design can simplify the drainage structure, reduce complex pipeline layout and additional equipment installation, thereby reducing construction and maintenance costs. The slope can be flexibly adjusted according to the actual theme base structure and space limitations to adapt to different installation environments.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A box-type fully skid-mounted LNG filling device impoundment tank structure, comprising an impoundment tank (1), wherein a bottom plate (2) is welded to the bottom of the impoundment tank (1), characterized in that: A first sump (4), a second sump (5) and a third sump (7) are arranged at the bottom of the base plate (2); the first sump (4) is located at the center of the bottom of the base plate (2); the bottom end of the first sump (4) is fixedly connected to a first drainage pipe (6); a slope plate (3) is arranged inside the base plate (2); two slope plates (3) are symmetrically arranged on the left and right, and the lowest ends of the two slope plates (3) are both directed toward the first sump (4).

2. The box-type fully skid-mounted LNG filling device impoundment tank structure according to claim 1 is characterized in that: The inner wall of the bottom plate (2) is provided with a second water collection pit (5), two of which are symmetrically arranged on the left and right, and a third water collection pit (7) is provided outside the two second water collection pits (5), and the inner wall of the bottom end of the third water collection pit (7) is fixedly connected to a second drainage pipe (8).

3. The box-type fully skid-mounted LNG filling device impoundment tank structure according to claim 1 is characterized in that: The base plate (2) is made of stainless steel, the bottom end of the base plate (2) is 1.5 mm thick, and the first sump (4) is a pump pool.

4. The box-type fully skid-mounted LNG filling device impoundment tank structure according to claim 3 is characterized in that: The height of the pump pool is 100 mm, and DN25 sewage valves are installed at the bottom of the first sump (4), the second sump (5), and the third sump (7).

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