CN218458500U

CN218458500U - Oil collection pit fire extinguishing and cooling device

Info

Publication number: CN218458500U
Application number: CN202222444295.4U
Authority: CN
Inventors: 李玉阳; 王荣祥; 胡清源; 赵富强
Original assignee: Sungrow Renewables Development Co Ltd
Current assignee: Sungrow Renewables Development Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-10
Anticipated expiration: 2032-09-15

Abstract

The utility model belongs to the technical field of the fire control of transformer substation, a sump pit heat sink of putting out a fire is disclosed. This oil collecting pit heat sink of putting out a fire is used for putting out a fire the cooling to the oil collecting pit, the top in oil collecting pit is provided with the transformer, the top opening part in oil collecting pit has laid the cobble layer, transformer oil passes through in the cobble layer gets into the oil collecting pit, oil collecting pit heat sink of putting out a fire includes injector head and water supply component, the injector head sets up in the oil collecting pit, be located the cobble layer below, the injector head can be from bottom to top to the cobble layer injection water, the water supply component is linked together with the injector head, the water supply component is configured into and supplies water to the injector head, and make the water that gets into the injector head spout with predetermineeing water pressure. The spraying head is arranged to spray water to the pebble layer, so that oil fire burning at the pebble layer can be extinguished, and the temperature of the transformer oil flowing into the oil collecting pit is reduced; and the flushing effect on the pebble bed is achieved, and the blockage of the pebble bed is reduced.

Description

Oil collection pit fire extinguishing and cooling device

Technical Field

The utility model relates to a fire control technical field of transformer substation especially relates to oil collecting pit heat sink of putting out a fire.

Background

The transformer substation is used as a common component in a power generation project, and the outdoor booster station mainly adopts an oil-immersed transformer, so that the transformer substation is large in volume, large in insulating oil consumption and high in fire hazard risk. In case of a large fire hazard, such as oil spray or explosion, the oil fire will penetrate the pebble bed and enter the oil collection pit, where there is also a possibility of combustion. The oil collection pit is used as a temporary concentrator of combustible (insulating oil decomposition), has the risks of re-combustion and continuous oil fire generation, and is extremely unfavorable for fire control of the whole transformer substation area.

Therefore, there is a need for an oil collecting pit fire extinguishing and cooling device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat sink of putting out a fire of sump pit can put out a fire the cooling to the sump pit and can reduce the cobble layer and block up.

To achieve the purpose, the utility model adopts the following technical proposal:

oil collection pit heat sink of putting out a fire for put out a fire the oil collection pit and cool down, the top in oil collection pit is provided with the transformer, the top opening part in oil collection pit has laid the cobble layer, and transformer oil passes through the cobble layer gets into in the oil collection pit, oil collection pit heat sink of putting out a fire includes:

the injection head is arranged in the oil collecting pit and positioned below the pebble layer, and can inject water to the pebble layer; and

a water supply assembly in communication with the spray head, the water supply assembly configured to supply water to the spray head and to cause water entering the spray head to be sprayed at a preset water pressure.

As an alternative, the water supply assembly comprises:

a water pump;

the water supply pipeline, the water supply pipeline intercommunication the injector head with the water pump, the water that the water pump was taken out via the water supply pipeline is carried extremely the injector head.

As an alternative, at least part of the water supply pipeline is arranged below the pebble layer, a plurality of the injection heads are connected to the water supply pipeline, the plurality of the injection heads can inject water towards the pebble layer, and the water injection surface covers the pebble layer.

Alternatively, the water supply pipeline surrounds the inner wall of the oil collecting pit for a circle, and the plurality of spraying heads are arranged on the water supply pipeline at equal intervals.

As an alternative scheme, the oil collection pit fire extinguishing and cooling device further comprises:

the mounting bracket is arranged on the inner wall of the oil collecting pit, and the water supply pipeline is arranged on the mounting bracket.

As an alternative, the mounting bracket includes a plurality of supporting columns, one end of each supporting column is fixed to the inner wall of the oil collecting pit, the other end of each supporting column extends towards the inside of the oil collecting pit, and the plurality of supporting columns are arranged at intervals to support the water supply pipeline.

As an alternative, a grid is arranged on the lower side of the pebble layer, the edge of the grid is fixed on the inner wall of the oil collecting pit, and the grid is used for supporting the pebble layer.

As an alternative, the water supply pipeline is hoisted and connected to the grating.

As an alternative scheme, the bottom of the oil collection pit is communicated with an oil discharge pipe, the oil discharge pipe is communicated with the water seal well, and the transformer oil and the water in the oil collection pit can be discharged into the water seal well through the oil discharge pipe.

Alternatively, the injector head is disposed at a height higher than the oil drain pipe.

Has the advantages that:

the oil collecting pit fire extinguishing and cooling device provided by the utility model can extinguish the oil fire burning at the pebble layer by arranging the injector head to inject water to the pebble layer, reduce the temperature of the transformer oil flowing into the oil collecting pit and prevent secondary reburning; meanwhile, the pebble bed can be cooled, the specific heat capacity of water is high, and the heat is absorbed for gasification, so that the pebble bed can continuously work; moreover, the spray generated by the spray head can clean the pebble layer at the bottom to a certain extent, so that the pebble layer is dredged, and blockage of the pebble layer is reduced; in addition, the spray head is arranged below the pebble layer, sprayed water does not directly contact with electrical equipment above the pebble layer, accidents such as short circuit are not likely to be induced, and safety is improved.

Drawings

Fig. 1 is a schematic structural diagram of an oil discharge device of a transformer substation provided by an embodiment of the present invention;

fig. 2 is a first schematic structural view of the oil sump fire extinguishing and cooling device provided by the embodiment of the invention;

FIG. 3 is a second schematic structural view of the oil sump fire extinguishing and cooling device according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of an extension pipe and a spray head according to an embodiment of the present invention.

In the figure:

1. an oil collection pit; 2. a transformer; 3. a pebble layer; 4. an injector head; 5. a water pump; 6. a water supply pipeline; 7. a support pillar; 8. a grid; 9. an oil discharge pipe; 10. water sealing the well; 11. clamping a hoop; 12. an extension pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The transformer substation is a common component in a power generation project, and transformer oil is needed to insulate and dissipate heat of the transformer during work of the transformer substation. As shown in fig. 1, an oil collecting pit 1 is arranged below a transformer 2 to collect transformer oil, the bottom of the oil collecting pit 1 is communicated with an oil discharge pipe 9, the oil discharge pipe 9 is communicated with a water seal well 10, water is added into the water seal well 10 and kept at a certain liquid level, the transformer oil in the oil collecting pit 1 is firstly discharged into the bottom of the water seal well 10, the transformer oil floats to the water surface from the bottom of the water seal well 10 by utilizing the density difference of the oil and the water, the temperature is reduced in the process, then the transformer oil flows to an accident oil pool, and the flow direction of the transformer oil is shown by arrows in fig. 1.

As shown in fig. 1, a pebble layer 3 is laid at the top opening of an oil collecting pit 1, transformer oil enters the oil collecting pit 1 through the pebble layer 3, when a fire breaks out, oil fire near a transformer 2 falls into the oil collecting pit 1 through the pebble layer 3, and is influenced by the transformer 2 burning at the upper part, so that the temperature in the oil collecting pit 1 is high, the heat is large, the possibility of reburning and oil fire generation exists, and the danger is very high.

For this reason, as shown in fig. 1 and fig. 2, the present embodiment further provides a sump fire extinguishing and temperature reducing device for extinguishing fire and reducing temperature of the sump 1. Oil collection hole heat sink of putting out a fire includes injection head 4 and water supply unit, and injection head 4 sets up in oil collection hole 1, is located pebble layer 3 below, and injection head 4 set up highly preferably to be higher than oil drain pipe 9, is close to the setting of pebble layer 3, and injection head 4 can be to the water of spouting of pebble layer 3. The water supply assembly is communicated with the spray head 4, and is used for supplying water to the spray head 4 and spraying the water entering the spray head 4 at a preset water pressure. Preferably, the spray head 4 is a shower type spray head, and can spray-shaped spray, so that the spray area is wider and the spray is more uniform.

The spray head 4 is arranged to spray water to the pebble layer 3, so that oil fire burning at the pebble layer 3 can be extinguished, the temperature of the transformer oil flowing into the oil collecting pit 1 is reduced, and secondary afterburning is prevented; meanwhile, the pebble bed 3 can be cooled, the specific heat capacity of water is high, and heat is absorbed for gasification, so that the pebble bed 3 can continuously work; moreover, the spray generated by the spray head 4 can clean the pebble layer 3 at the bottom to a certain extent, so that the pebble layer 3 is dredged, and the blockage of the pebble layer 3 is reduced; in addition, the jetting head 4 is arranged below the pebble layer 3, so that the discharged water does not directly contact with the electrical equipment above the pebble layer 3, the possibility of accidents such as short circuit is avoided, and the safety is improved.

Wind and light new energy projects gradually migrate to the northwest region, the change of weather conditions and the limitation of fire safety auxiliary measures of a transformer substation are slowly revealed, for example, the problems of insufficient liquid seal height and the like occur in a water seal well, so that the whole oil collecting pit system has great fire safety hidden danger. Therefore, the bottom of the oil collecting pit 1 is communicated with an oil discharge pipe 9, the oil discharge pipe 9 is communicated with a water seal well 10, water sprayed to the pebble layer 3 falls into the bottom of the oil collecting pit 1 and is discharged into the water seal well 10 through the oil discharge pipe 9, the effect of supplementing the liquid seal height of the water seal well 10 is achieved, and the water shortage hidden trouble of the water seal well 10 is eliminated.

Further, as shown in fig. 2, the water supply assembly includes a water pump 5 and a water supply pipe 6, the water supply pipe 6 communicates the injection head 4 and the water pump 5, and water pumped by the water pump 5 is delivered to the injection head 4 via the water supply pipe 6. The water pump 5 is arranged outside the oil collection pit 1 and communicated with a water source. At least partial water supply pipe 6 sets up in pebble layer 3 below, is connected with a plurality of injection heads 4 on the water supply pipe 6, and a plurality of injection heads 4 all can spray water towards pebble layer 3, and the water spray face covers pebble layer 3 to can carry out the water spray fire extinguishing cooling to whole pebble layer 3.

Particularly, as shown in fig. 2, water supply pipe 6 encircles a week of the inner wall of oil collection pit 1, and a plurality of injection heads 4 are arranged on water supply pipe 6 at even intervals, and water supply pipe 6 is pressed close to the inner wall setting of oil collection pit 1, and easy to assemble is fixed, can reduce moreover to the sheltering from of the oil and the water that drip on pebble layer 3.

Preferably, as shown in fig. 3 and 4, the spraying head 4 is communicated with the water supply pipeline 6 through an extension pipe 12, one end of the extension pipe 12 is connected with the water supply pipeline 6, and the other end is provided with the spraying head 4 and extends towards the inside of the oil collection pit 1, so that the spraying head 4 is away from the inner wall of the oil collection pit 1 by a certain distance, and the water spraying surface of the spraying head 4 is favorably covered with the pebble layer 3.

In order to fix the water supply pipeline 6, the oil collecting pit fire extinguishing and cooling device further comprises a mounting support, the mounting support is arranged on the inner wall of the oil collecting pit 1, and the water supply pipeline 6 is arranged on the mounting support. Specifically, as shown in fig. 2, the mounting bracket includes a plurality of support columns 7, one end of each support column 7 is fixed to the inner wall of the oil collection pit 1, the other end of each support column 7 extends into the oil collection pit 1, the plurality of support columns 7 are arranged at intervals to support the water supply pipeline 6, and referring to fig. 4, the water supply pipeline 6 is fixed to the support columns 7 through clamps 11. When oil collection pit 1 was under construction, can carry out pre-buried to support column 7, need not carry out the civil engineering in addition, reduced construction cost, the operability is stronger.

Of course, the installation manner of the water supply pipeline 6 is not limited to this, and in other embodiments, as shown in fig. 1, a grid 8 is provided at the lower side of the pebble layer 3, the edge of the grid 8 is fixed on the inner wall of the oil collecting pit 1, the grid 8 is used for supporting the pebble layer 3, and the water supply pipeline 6 can be connected to the grid 8 in a hoisting manner, so that the installation is also convenient.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Oil collection pit heat sink of putting out a fire for put out a fire the cooling to oil collection pit (1), the top of oil collection pit (1) is provided with transformer (2), cobble layer (3) have been laid to the open-top department of oil collection pit (1), and transformer oil passes through cobble layer (3) get into in the oil collection pit (1), its characterized in that, the oil collection pit heat sink of putting out a fire includes:

the jetting head (4) is arranged in the oil collecting pit (1) and is positioned below the pebble layer (3), and the jetting head (4) can jet water to the pebble layer (3); and

a water supply assembly in communication with the spray head (4), the water supply assembly being configured to supply water to the spray head (4) and to cause water entering the spray head (4) to be sprayed out at a preset water pressure.

2. An oil sump fire extinguishing and cooling device according to claim 1, wherein the water supply assembly comprises:

a water pump (5);

water supply pipe (6), water supply pipe (6) intercommunication injection head (4) with water pump (5), the water that water pump (5) were taken out via water supply pipe (6) carry to injection head (4).

3. An oil collecting pit fire extinguishing and temperature reducing device according to claim 2, characterized in that at least part of the water supply pipeline (6) is arranged below the pebble layer (3), a plurality of the injection heads (4) are connected to the water supply pipeline (6), the plurality of the injection heads (4) can inject water towards the pebble layer (3), and the water injection surface covers the pebble layer (3).

4. An oil collecting pit fire extinguishing and temperature reducing device according to claim 3, characterized in that the water supply pipeline (6) surrounds the inner wall of the oil collecting pit (1) for one circle, and a plurality of the spray heads (4) are arranged on the water supply pipeline (6) at even intervals.

5. An oil sump pit fire extinguishing and cooling device according to claim 2, further comprising:

the mounting support is arranged on the inner wall of the oil collecting pit (1), and the water supply pipeline (6) is arranged on the mounting support.

6. An oil collection pit fire extinguishing and temperature reducing device according to claim 5, wherein the mounting bracket comprises a plurality of supporting columns (7), one end of each supporting column (7) is fixed on the inner wall of the oil collection pit (1), the other end of each supporting column extends towards the inside of the oil collection pit (1), and the plurality of supporting columns (7) are arranged at intervals to support the water supply pipeline (6).

7. An oil collecting pit fire extinguishing and temperature reducing device according to claim 2, characterized in that the underside of the pebble layer (3) is provided with a grid (8), the edge of the grid (8) is fixed on the inner wall of the oil collecting pit (1), and the grid (8) is used for supporting the pebble layer (3).

8. An oil sump pit fire extinguishing and temperature reducing device according to claim 7, wherein the water supply pipeline (6) is connected to the grating (8) in a hoisting manner.

9. An oil collection pit fire extinguishing and temperature reducing device according to any one of claims 1-8, characterized in that the bottom of the oil collection pit (1) is communicated with an oil discharge pipe (9), the oil discharge pipe (9) is communicated with a water seal well (10), and the transformer oil and water in the oil collection pit (1) can be discharged into the water seal well (10) through the oil discharge pipe (9).

10. An oil sump pit fire extinguishing and temperature reducing device according to claim 9, characterized in that the spraying head (4) is arranged at a higher height than the oil discharge pipe (9).