JPS5854397Y2 - Sludge melting equipment - Google Patents

Description

[Detailed explanation of the idea] When oil is stored for long periods of time, sludge builds up.

Sludge contains wax, oil, water sludge, iron, carbonaceous,
It consists of sand and mud, some of which accumulates in the pump pit, and some of which accumulates on the waterbed.

Since sludge has a very high viscosity, if it accumulates in the pump pit, various problems will occur when removing the oil, so until now sprays have been used to dispose of this.

However, this method cannot be said to be good from the viewpoint of maintainability and economy.

The present application was devised in view of these drawbacks, and it effectively blows steam into the water in the pump pit and the water in the water bed to heat the sludge on the oil-water boundary in the pump pit or water bed from below and dissolve the sludge. This invention relates to a sludge melting device for a water-sealed underground oil storage tank.

In this application, a steam generation pipe with the lower end closed is installed vertically in the pump pit of a water-sealed underground oil storage tank, and the steam generation part of the steam generation pipe with a steam discharge hole is connected to the ON and OFF positions of the drainage pump.
A steam generation pipe 4 with a closed end is installed horizontally between F and the most upstream side of the water bed, and the horizontal steam generation pipe has a number of steam exhaust holes at regular intervals on both sides of the horizontal axis. This invention relates to a sludge melting device consisting of multiple holes.

The purpose of this application is to heat only the upper layer of water in the pump pit by providing a steam generating part between ON and OFF of the drainage pump, which can effectively dissolve the sludge at the oil-water interface. We provide melting equipment for

Another object of the present application is to prevent unnecessary heating of water in the pump pit below the OFF position by blocking the lower end of the steam generation pipe, and to prevent overheating of the drainage pump. To provide a sludge melting equipment that can.

The purpose of the culture of this application is to install a steam generation pipe on the most upstream side of the water bed and heat the water in the water bed, so that the hot water reaches the pump pit on the most downstream side along the flow and effectively activates the water bed. The purpose of the present invention is to provide a sludge melting device that can be heated throughout.

Another object of the present application is that by providing a steam discharge hole in the horizontal direction, steam can be discharged horizontally to prevent oil and water from forming a mixed emulsion and generating sludge, and the steam generation pipe is disposed at the end of the pipe. To provide a sludge melting device capable of uniformly warming a water bed by blocking the water bed.

To describe the embodiment now, in the case of FIGS. 2 and 3, a steam generation pipe 4 is provided in the pump pit 2, and the steam generation part 4a is connected to the ON (water level HIGH) and OFF (water level HIGH) of the drain pump 6. The water level is LOW).

This is to heat only the upper layer of water in the pump pit 2 and effectively dissolve the sludge 8 at the oil-water interface 7.

The lower end of the steam generation pipe 4 is closed, and a number of thin steam exhaust holes 5 are bored along the circumference of the cylinder at regular intervals at the upper part of the tube as a steam generation part 4a to uniformly heat water and mix oil and water. This is to prevent emulsification and sludge generation, and the reason why the lower end of the steam generation pipe 4 is closed 4' is that there is no need to heat the water below the OFF position of the water in the pump pit 2. This is to prevent the drain pump 6 from overheating.

Next, to explain the cases shown in FIGS. 4 and 5, the water in the water bed 3 gradually moves toward the pump pit 2 due to the leachate in the oil storage tank 1, and is discharged by the drain pump 6, producing steam. If the pipe 4 is installed on the most upstream side of the water bed 3 and the water in the water bed 3 is heated, the hot water will flow along the flow to the pump pit 2 on the most downstream side.
This will warm up the entire bed 3.

Therefore, as shown in FIG. 1, a cylindrical steam generating tube 4 of a certain length is provided horizontally on the most upstream side of the water bed 3, and steam exhaust holes 5 are provided at regular intervals on both sides of the horizontal axis C of the steam generating tube 4. It is something that is worn and worn many times every time.

The reason why the steam exhaust hole 5 is provided in the horizontal direction is that by discharging the steam horizontally, it is possible to prevent the formation of a mixed emulsion of oil and water and the generation of sludge. The end is occluded 4'
The reason for this is to heat the water bed 3 evenly.

As described above, the present application provides a steam generating section 4 having a steam generating pipe 4 having a closed lower end vertically installed in a pump pit 2 of a water honey type underground oil storage tank 1, and having a steam exhaust hole 5 of the steam generating pipe 4.
A is installed between ON and OFF of the drain pump 6, and a steam generation pipe 4 with a closed end is installed horizontally on the most upstream side of the water bed 3, and the horizontal steam generation pipe 4 is installed on both sides of the horizontal axis C. Since a large number of steam exhaust holes 5 are bored at regular intervals in the section, the following effects are obtained.

a. By providing the steam generating part between ON and OFF of the drain pump, it is possible to heat only the upper layer of water in the pump pit and effectively dissolve the sludge at the oil-water interface.

b. By closing the lower end of the steam generation pipe, it is possible to avoid unnecessary heating of water in the pump pit below the OFF position, which does not need to be heated, and to prevent overheating of the drain pump.

By installing the C6 steam generation pipe at the most upstream side of the water bed and heating the water in the water bed, the hot water can reach the pump pit at the most downstream side along the flow and effectively warm the entire water bed.

d. By providing a steam discharge hole in the horizontal direction, steam can be discharged horizontally to prevent the formation of a mixed emulsion of oil and water and the generation of sludge, and the end of the steam generation pipe is closed, making it possible to prevent the water bed from forming. It can be heated evenly.

e. The kinematic viscosity is significantly reduced, making pumping easier.

f. Oil-water separation occurs, and the water content in the oil decreases significantly.

g. Paraffin is dissolved and reduced by half.

h. There are no moving parts, so no maintenance is required.

i. Installation costs are low.

j. Operating costs are low because the bottom of the oil layer where sludge accumulates is effectively heated.

k. Because the sludge layer is dissolved by natural heat transfer between the sludge layer and hot water, there are no problems such as oil/water mixing, emulsification, or sludge generation.

1. Mechanical agitation methods such as spraying may actually help sludge generation in some cases, but this method eliminates such concerns because the sludge is dissolved by natural heat transfer between the water bed and the sludge layer.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the entire oil storage tank, Figure 2 is an enlarged cross-sectional view of the pump pit, Figure 3 is a front view of the lower part of the steam generation pipe used in the pump pit, and Figure 4 is the water bed. A side view of the steam generation tube, and FIG. 5 is a sectional view thereof.

Claims (1)

[Scope of utility model registration request] A steam generation pipe 4 with a closed bottom is installed vertically in the pump pit 2 of the water-sealed underground oil storage tank 1, and a steam generation part 4a having a steam discharge hole 5 of the steam generation pipe 4 is connected to the drain pump 6.
A steam generation tube 4 with a closed end is installed horizontally between N and OFF on the most upstream side of the water bed 3, and the horizontal steam generation tube 4 has steam exhaust holes 5 on both sides of the horizontal axis C.
A sludge melting device for water-sealed underground oil storage tanks that drills several holes at regular intervals.