CN111350396A - A siphon type transformer oil storage tank oil discharge system - Google Patents

Abstract

The invention discloses a siphon type transformer oil storage tank oil discharge system, comprising an oil storage tank and an oil discharge system, an oil storage tank bottom plate is arranged at the bottom of the oil storage tank, and the oil discharge system includes a water bucket, a connecting pipe, an upper horizontal pipe, The vertical pipe and the lower horizontal pipe, the water bucket is arranged on the bottom of the oil storage tank, the upper horizontal pipe is horizontally arranged under the bottom of the oil storage tank, one end of the upper horizontal pipe is in airtight communication with the water bucket through the connecting pipe, and the other end of the upper horizontal pipe is connected with the vertical pipe. The upper end of the pipe is in airtight communication, the riser is arranged vertically, the lower end of the riser is in airtight communication with one end of the lower horizontal pipe, the other end of the lower horizontal pipe is connected to the outside world, and the lower horizontal pipe is arranged horizontally.

Description

A siphon type transformer oil storage tank oil discharge system

technical field

The invention relates to oil discharge from an oil storage tank, in particular to a siphon type oil storage tank oil discharge system.

Background technique

Thermal power plants are often equipped with several transformers, which are mostly arranged in the open air. When an oil leakage accident occurs in the transformer, the leaked oil is discharged to the accident oil pool along the oil discharge pipe with a certain slope under the action of gravity. The existing transformer oil storage tank oil discharge system is shown in Figure 1. The oil storage tank bottom plate, steel grid and pebble layer are arranged in sequence from bottom to top. An overhead layer is formed between the oil storage tank bottom plate and the steel grid. One side is the side wall and foundation of the oil storage tank. If the discharge rate is less than the leakage rate, residual oil will accumulate in the oil storage tank, causing a fire hazard.

SUMMARY OF THE INVENTION

In view of the low oil discharge efficiency of the current oil storage tank, the present invention provides an oil discharge system of a siphon type oil storage tank, so as to improve the oil discharge efficiency and save the construction cost of the oil storage tank.

To achieve the above object, the present invention adopts the following technical solutions:

A siphon type transformer oil storage tank oil discharge system includes an oil storage tank and an oil discharge system, the bottom of the oil storage tank is provided with an oil storage tank bottom plate, and the oil discharge system includes a water bucket, a connecting pipe, an upper horizontal pipe, A vertical pipe and a lower horizontal pipe, the water bucket is arranged on the bottom plate of the oil storage tank, the upper horizontal pipe is horizontally arranged below the bottom plate of the oil storage tank, and one end of the upper horizontal pipe is sealed with the water bucket through the connecting pipe The other end of the upper horizontal pipe is in airtight communication with the upper end of the standpipe, the standpipe is arranged vertically, the lower end of the standpipe is in airtight communication with one end of the lower horizontal pipe, and the lower horizontal pipe The other end of the pipe is connected to the outside world, and the lower horizontal pipe is arranged horizontally.

According to one aspect of the present invention, the water bucket has a reverse vortex structure, and the reverse vortex structure includes a vent hole arranged on the top of the bucket and a plurality of water baffles arranged around the vent hole.

According to an aspect of the present invention, an oil collecting pit is arranged on the bottom plate of the oil storage tank, and the water bucket is arranged at the bottom of the oil collecting pit.

According to one aspect of the present invention, there are multiple water buckets, which are respectively communicated with the upper horizontal pipe through connecting pipes.

According to an aspect of the present invention, the oil storage tank is provided with multiple sets of the oil discharge systems.

According to an aspect of the present invention, the length of the standpipe is determined by calculation according to the oil discharge amount, and the length of the upper horizontal pipe is the same as that of the standpipe.

According to one aspect of the present invention, the lower horizontal pipe includes two parts with different pipe diameters, and the part with a smaller inner diameter communicates with the riser.

According to one aspect of the present invention, the inner diameters of the upper horizontal pipe, the riser pipe, and the lower horizontal pipe with smaller inner diameters are the same and not less than 150 mm.

According to an aspect of the present invention, an accident oil pool is provided below one end of the lower horizontal pipe that communicates with the outside world.

Advantages of the implementation of the present invention:

(1) High oil discharge efficiency: Compared with the prior art, the present invention designs the pipeline structure through fluid mechanics calculation. When oil leakage occurs, the oil enters the upper horizontal pipe through the water bucket, reaches full flow in the upper horizontal pipe, and flows into the upper horizontal pipe. After the riser, the gravitational potential energy difference provided by the riser makes the oil produce a siphon effect in a state of full flow, which greatly improves the oil discharge efficiency.

(2) The construction cost of the oil storage tank is low: the present invention greatly improves the oil discharge efficiency due to the oil discharge through the siphon effect. Compared with the prior art, structures such as pebble layers and steel grids do not need to be set; The height of the side wall of the oil storage tank can be reduced by setting up a pebble layer, a steel grille, etc. Therefore, the technical solution provided by the present invention can reduce the construction cost of the oil storage tank.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of an existing transformer oil storage tank oil discharge system described in the background technology of the present invention;

2 is a schematic diagram of a siphon type oil storage tank oil discharge system according to the present invention;

FIG. 3 is a schematic diagram of an oil discharge system of a siphon type oil storage tank oil discharge system according to the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

As shown in Figures 2 and 3, a siphon-type transformer oil storage tank oil discharge system includes an oil storage tank and an oil discharge system. The bottom of the oil storage tank is provided with an oil storage tank bottom plate 1, and the oil discharge system includes The water bucket 2, the connecting pipe 3, the upper horizontal pipe 4, the vertical pipe 5 and the lower horizontal pipe 6. The water bucket 2 is arranged on the bottom plate 1 of the oil storage tank. After the oil leakage accident occurs in the transformer, the oil leaks to the bottom plate 1 of the oil storage tank. Discharge through bucket 2. The upper horizontal pipe 4 is horizontally arranged below the bottom plate 1 of the oil storage tank. The upper end of the stand pipe 5 is in airtight communication, the stand pipe 5 is arranged vertically, the lower end of the stand pipe 5 is in airtight communication with one end of the lower horizontal pipe 6, and the other end of the lower horizontal pipe 6 is connected to the outside world, so the The following horizontal pipes 6 are arranged horizontally. The oil enters the upper horizontal pipe through the water bucket. The purpose of setting the upper horizontal pipe horizontally is to make it easier for the oil to form a full flow state. If the upper horizontal pipe is not installed, the oil flows directly into the lower horizontal pipe, which will easily bring in air and affect the siphon. Effect. The oil flows into the riser through the upper horizontal pipe. When the oil is in a state of full flow, the gravitational potential energy difference brought by the vertical riser makes the oil in the upper part of the riser descend rapidly, and the oil below flows into the lower horizontal pipe. Under the action, the oil in the upper horizontal pipe and the oil storage tank flows rapidly, and the oil in the oil tank and the upper horizontal pipe is "sucked" away, and this effect is the siphon effect. The horizontally arranged lower horizontal pipe is also to make it easier for the oil to form a full flow state. If the lower horizontal pipe is not set up, the oil under the riser will inevitably lead to the entry of gas when the oil flows out, which will destroy the full flow effect, thereby destroying the siphon effect.

Example 2

As shown in Figures 2 and 3, a siphon-type transformer oil storage tank oil discharge system includes an oil storage tank and an oil discharge system. The bottom of the oil storage tank is provided with an oil storage tank bottom plate 1, and the oil discharge system includes The water bucket 2, the connecting pipe 3, the upper horizontal pipe 4, the vertical pipe 5 and the lower horizontal pipe 6. The water bucket 2 is arranged on the bottom plate 1 of the oil storage tank. After the oil leakage accident occurs in the transformer, the oil leaks to the bottom plate 1 of the oil storage tank. Discharge through bucket 2. The upper horizontal pipe 4 is horizontally arranged below the bottom plate 1 of the oil storage tank. The upper end of the stand pipe 5 is in airtight communication, the stand pipe 5 is arranged vertically, the lower end of the stand pipe 5 is in airtight communication with one end of the lower horizontal pipe 6, and the other end of the lower horizontal pipe 6 is connected to the outside world, so the The following horizontal pipes 6 are arranged horizontally.

The water bucket has a reverse vortex structure, and the reverse vortex structure includes an exhaust hole arranged on the top of the bucket and a plurality of water baffles arranged around the exhaust hole. The vortex will cause air bubbles to enter the pipe and affect the siphon effect. Set the vent hole on the top of the water bucket, and set up baffles around the vent hole. The excess gas is discharged from the vent hole, and it is difficult for the oil to be blocked by the surrounding baffle to form a vortex. . An oil collecting pit is arranged on the bottom plate of the oil storage tank, and the water bucket is arranged at the bottom of the oil collecting pit. The oil collecting pit concentrates the oil, which makes it easier to form a full flow effect and improve the efficiency of siphon oil discharge. There are multiple water buckets, which are respectively communicated with the upper horizontal pipe through connecting pipes. The oil storage tank is equipped with multiple sets of the oil discharge systems. When equipped with unconventional transformers with a large theoretical oil leakage, multiple sets of oil discharge systems are equipped to improve oil discharge efficiency. The length of the stand pipe is determined according to the oil discharge amount, and the length of the upper horizontal pipe is the same as that of the stand pipe. If the riser is too long, it is difficult for less oil to form a full flow effect; if the riser is too short, the gravitational potential energy difference is small, and the siphon efficiency is low, so the length of the riser is reasonably set according to the theoretical maximum oil leakage. The same is true for the upper horizontal pipe. If the upper horizontal pipe is too long, the oil is likely to flow in half instead of full flow in the upper horizontal pipe. If the upper horizontal pipe is too short, it enters the riser too quickly and easily brings in air. Appropriately close to the riser. The lower horizontal pipe includes two parts with different pipe diameters, the part with the smaller inner diameter communicates with the riser to ensure the full flow effect in the riser, and the part connected to the outside has a larger inner diameter to reduce oil discharge resistance. The inner diameters of the parts with the smaller inner diameters of the upper horizontal pipe, the vertical pipe and the lower horizontal pipe are the same and not less than 150mm. Specification GB50060 low 5,. Article 5.2 stipulates that the inner diameter of the oil discharge pipe should not be less than 150mm. An accident oil pool is arranged below one end of the lower horizontal pipe that communicates with the outside world.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, All should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (9)

1. The utility model provides a hydrocone type transformer oil storage tank oil discharge system, a serial communication port, including oil storage tank and oil discharge system, the oil storage tank bottom is provided with the oil storage tank bottom plate, the oil discharge system includes water bucket, connecting pipe, upper horizontal pipe, riser and lower horizontal pipe, the water bucket sets up at the oil storage tank bottom plate, the upper horizontal pipe level sets up in oil storage tank bottom plate below, the one end of upper horizontal pipe is passed through the connecting pipe with the airtight intercommunication of water bucket, the other end of upper horizontal pipe with the airtight intercommunication in upper end of riser, the vertical setting of riser, the lower extreme of riser with the airtight intercommunication in one end of lower horizontal pipe, the other end intercommunication of lower horizontal pipe is external, the horizontal pipe level sets up down.

2. The oil drainage system of a siphonic transformer oil pool according to claim 1, wherein the water bucket has an anti-vortex structure, and the anti-vortex structure comprises an exhaust hole arranged at the top of the water bucket and a plurality of water baffles arranged around the exhaust hole.

3. The oil drainage system of the siphon transformer oil pool of claim 1, wherein the oil pool bottom plate is provided with an oil collection pit, and the water bucket is arranged at the bottom of the oil collection pit.

4. The oil drainage system of a siphon transformer for an oil pool of claim 1, wherein the number of the water buckets is plural, and the water buckets are respectively communicated with the upper horizontal pipe through the connecting pipes.

5. The oil drainage system of a siphonic transformer oil reservoir according to claim 1, wherein the oil reservoir is provided with a plurality of sets of the oil drainage system.

6. The siphonic transformer oil sump drainage system of claim 1, wherein the length of the riser is calculated from the amount of drainage and the length of the upper horizontal tube is the same as the length of the riser.

7. The siphonic transformer oil reservoir drainage system according to claim 1, wherein the lower horizontal tube comprises two sections of different diameters, the section of smaller inside diameter communicating with the vertical tube.

8. The oil drainage system of the siphon transformer oil pool according to one of claims 1 to 7, wherein the inner diameters of the smaller parts of the upper horizontal pipe, the vertical pipe and the lower horizontal pipe are the same and not less than 150 mm.

9. The oil drainage system of a siphon transformer for an oil pool of claim 8, wherein an accident oil pool is provided under the end of the lower horizontal pipe communicated with the outside.

Images