Water spray fire-fighting pipeline structure of transformer

Abstract

The utility model relates to a water spray fire-fighting pipeline structure of a transformer, which belongs to the field of fire-fighting pipelines and comprises a horizontal annular pipe pre-buried underground, the horizontal annular pipe is in a rectangular ring shape and is connected with a water inlet pipe, four groups of branch net vertical pipes are arranged above the horizontal annular pipe and are in one-to-one correspondence with four sides of the horizontal annular pipe, and the four groups of branch net vertical pipes are connected with the water inlet pipe. Each group of branch net vertical pipes comprises a plurality of branch net vertical pipes, the plurality of branch net vertical pipes in the same group are distributed along the length direction of the horizontal ring pipe, each branch net vertical pipe is vertically arranged, each branch net vertical pipe is detachably and fixedly connected with the horizontal ring pipe, and a vertical pipe spray head is arranged on each branch net vertical pipe. According to the utility model, no overground horizontal looped network exists, when personnel enter a site or a transformer carries out maintenance operation, the operation is convenient, an additional vertical bracket is not needed, when the maintenance operation is carried out, part of the branch net vertical pipes can be conveniently disassembled, an operation entering space is reserved, and the disassembly is convenient and quick through a flange connection mode; and an operation point is within a safe distance during disassembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a transformer water spray fire pipeline structure and belongs to the field of fire pipeline. BACKGROUND

[0002] At present, the water spray fire extinguishing system is the most commonly used fixed automatic fire extinguishing facility for large transformers. The water spray fire extinguishing system is composed of water supply equipment, deluge valve group, pipe network and supporting accessories, pipe valves, water mist nozzles, and supporting fire detectors and fire alarm controllers. In order to meet the requirements of protecting the transformer oil tank body, the orifice of the insulator riser, the oil pillow, the radiator, the oil collecting pit, etc. in all directions, pipe networks and water mist nozzles need to be arranged around the transformer to ensure that the water mist cones intersect and completely envelop the transformer to meet the requirements of fire extinguishing supply intensity.

[0003] As shown in Figure 4 The conventional fire pipeline network and water mist nozzles around the transformer are arranged as follows: the pipe network device is mainly composed of a water inlet pipe, a connecting vertical pipe, a lower ring pipe, a lower ring pipe nozzle, an upper ring pipe, an upper ring pipe nozzle, a top cross pipe, and a top cross pipe nozzle. The upper and lower ring pipes are fixed by support columns arranged uniformly around the transformer. High-pressure water provided by the water supply equipment of the water spray fire extinguishing system enters the lower ring pipe, the upper ring pipe, and the top cross pipe through the water inlet pipe, respectively, and forms an atomized water envelope on the transformer through the water mist nozzles arranged on each branch pipe. The nozzles arranged on the lower ring pipe mainly protect the lower part of the transformer oil tank, the radiator, and the oil collecting pit. The nozzles on the upper ring pipe mainly protect the upper part of the transformer oil tank and the orifice of the riser. The nozzles on the top cross pipe mainly protect the top of the oil tank and the oil pillow.

[0004] However, the prior art still has the following disadvantages:

[0005] 1. Two ring-shaped pipe networks are formed around the transformer. When the transformer fails and needs to be checked or repaired, the entire fire pipeline network needs to be disassembled, otherwise the vehicles for maintenance testing and engineering hoisting cannot operate normally.

[0006] 2. When the water mist nozzles at a high position fall off or are blocked, the nozzles cannot be replaced while the transformer is operating with electricity, and the nozzles or branch pipes can only be repaired and replaced when the transformer is powered off for maintenance. SUMMARY

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a transformer water spray fire pipeline structure that is convenient to maintain.

[0008] The utility model discloses a technical scheme that solves the above problems adopts, and its technical scheme is: a transformer water spray fire -fighting pipeline structure, including the horizontal ring pipe of pre -buried in the ground, the horizontal ring pipe is rectangular annular, the horizontal ring pipe connects the water pipe, the top of horizontal ring pipe is provided with four groups of branch network stand pipes, four groups of branch network stand pipes and four sides of horizontal ring pipe one to one correspond, each group of branch network stand pipe is provided with a plurality of, and the multiple branch network stand pipes of same group are along the length direction distribution of horizontal ring pipe, and each branch network stand pipe is vertically arranged, and each branch network stand pipe is detachably fixed with horizontal ring pipe, be provided with stand pipe shower head on the branch network stand pipe.

[0009] As preferred, the stand pipe shower head on the same branch network stand pipe is provided with a plurality of, and the plurality of stand pipe shower heads are distributed along the length direction of the branch network stand pipe.

[0010] As preferred, the horizontal ring pipe is provided with a plurality of connecting pieces, and the plurality of connecting pieces are connected with the plurality of branch network stand pipes one to one.

[0011] As preferred, the connecting end of the connecting piece and the branch network stand pipe is provided with lower flange, the bottom end of the branch network stand pipe is provided with upper flange, the upper flange and lower flange are pasted upside down, and the upper flange and lower flange are detachably fixed.

[0012] As preferred, the lower flange and upper flange are connected through bolt.

[0013] As preferred, the horizontal ring pipe, connecting piece and lower flange are pre-buried in the ground.

[0014] As preferred, the connecting piece is provided with pre-buried steel plate, and the pre-buried steel plate and the connecting piece are connected through reinforcing rib.

[0015] As preferred, the top of one group of branch network stand pipes is provided with top spray cross pipe, the two ends of the top spray cross pipe are connected with the top end of two branch network stand pipes of this group of branch network stand pipes respectively, and the top spray cross pipe is provided with top spray shower head.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1, no ground horizontal ring network, personnel enter the site or transformer maintenance operation, convenient operation, do not need to set up vertical support additionally, when maintenance operation, can conveniently detach part of branch network stand pipe, and leave the entering space of operation.

[0018] 2, the mode of flange connection is convenient and fast to detach, and the operation point is in the safe distance when detaching, when the shower head or other components are loose, blocked, in the case that the transformer does not stop power, the whole branch network stand pipe can be removed, and maintenance and replacement can be carried out. DRAWINGS

[0019] Figure 1The utility model relates to a kind of structure schematic diagram of transformer water spray fire-fighting pipeline structure.

[0020] Figure 2 It is the layout drawing of support network riser and riser nozzle.

[0021] Figure 3 It is the installation drawing of horizontal ring network and support network riser connection.

[0022] Figure 4 It is the structure schematic diagram of prior art.

[0023] Among them: horizontal ring pipe 1, inlet pipe 2, support network riser 3, riser nozzle 4, top spray cross pipe 5, top spray nozzle 6, connecting piece 7, lower flange 8, upper flange 9, embedded steel plate 10, reinforcing rib 11, transformer 12. DETAILED DESCRIPTION

[0024] As Figures 1-3 Shown, a kind of transformer water spray fire-fighting pipeline structure in the embodiment, including horizontal ring pipe 1, the horizontal ring pipe 1 is rectangular annular, the horizontal ring pipe 1 is connected inlet pipe 2, the upper of the horizontal ring pipe 1 is provided with four groups of support network riser 3, four groups of support network riser 3 and the four sides of horizontal ring pipe 1 one-to-one correspond, each group of support network riser 3 is provided with multiple, multiple support network riser 3 of same group is distributed along the length direction of horizontal ring pipe 1, each support network riser 3 is vertically arranged, each support network riser 3 is detachably fixedly connected with horizontal ring pipe 1;

[0025] Riser nozzle 4 is provided on the support network riser 3, the riser nozzle 4 on same support network riser 3 is provided with multiple, multiple riser nozzles 4 are spaced along the length direction of support network riser 3;

[0026] The upper of one group of support network riser 3 is provided with top spray cross pipe 5, the top of two support network risers 3 in this group of support network riser 3 is connected with the two ends of top spray cross pipe 5 respectively, multiple top spray nozzles 6 are provided on the top spray cross pipe 5, multiple top spray nozzles 6 are spaced along the length direction of top spray cross pipe 5;

[0027] Multiple connecting pieces 7 are provided on the horizontal ring pipe 1, multiple connecting pieces 7 are connected with multiple support network risers 3 one-to-one.

[0028] The connecting end of connecting piece 7 and support network riser 3 is provided with lower flange 8, the bottom end of support network riser 3 is provided with upper flange 9, upper flange 9 and lower flange 8 are pasted upside down, upper flange 9 and lower flange 8 are detachably fixedly connected, specifically, lower flange 8 and upper flange 9 are connected by bolt.

[0029] Horizontal ring pipe 1, connecting piece 7 and lower flange 8 are embedded in underground.

[0030] The connecting piece 7 is provided with a pre-embedded steel plate 10, and the pre-embedded steel plate 10 is connected with the connecting piece 7 through a reinforcing rib 11;

[0031] During installation, the transformer 12 is located at the ring hole of the rectangular ring of the horizontal ring pipe 1, and the horizontal ring pipe 1 is located below the oil sump horizon of the transformer 12; when the transformer 12 catches fire, high-pressure water from the water inlet pipe 2 first enters the underground horizontal ring network, and the water in the underground horizontal ring network is transported to each branch network riser 3, and the water in two of the branch network risers 3 is also transported to the top-spraying horizontal pipe 5; then, the water is sprayed out in the form of water mist from the riser nozzle 4 and the top-spraying nozzle 6 and acts on the transformer 12, thereby achieving the comprehensive effects of cooling, suffocation, emulsification and dilution, and realizing the fire extinguishing of the transformer 12; wherein, the water mist sprayed by the top-spraying nozzle 6 is used for protecting the top of the oil tank and the oil pillow;

[0032] In addition, since there is no overground horizontal ring network, it is convenient to operate when personnel enter the site or the transformer 12 is overhauled, and it is not necessary to additionally set up vertical supports; when overhauling, part of the branch network risers 3 can be conveniently removed to leave a space for entering the operation site; the flange connection mode is convenient and fast to disassemble; when disassembling, the operation point is in a safe distance; when the nozzle or other components are loose or blocked, the branch network riser 3 can be removed as a whole under the condition that the transformer 12 does not stop power supply, and the branch network riser 3 can be repaired and replaced.

[0033] In addition to the above-mentioned embodiments, the utility model also includes other implementation manners, and any technical scheme formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the utility model claim.

Claims

1. A transformer water-spray fire protection piping arrangement, characterized by: The utility model relates to a horizontal ring pipe (1) is embedded in the ground, the horizontal ring pipe (1) is rectangular annular, the horizontal ring pipe (1) is connected into the water pipe (2), the upper of horizontal ring pipe (1) is provided with four groups of branch net stand pipe (3), four groups of branch net stand pipe (3) with the four sides of horizontal ring pipe (1) one to one correspondence, each group branch net stand pipe (3) is provided with a plurality of, and the multiple branch net stand pipe (3) of same group is distributed along the length direction of horizontal ring pipe (1), each branch net stand pipe (3) is vertically arranged, and each branch net stand pipe (3) is detachably fixed with horizontal ring pipe (1), and the branch net stand pipe (3) is provided with stand pipe shower head (4).

2. A transformer water spray fire protection piping arrangement according to claim 1, characterized in that: The stand pipe shower head (4) on the same branch net stand pipe (3) is provided with a plurality of, and the plurality of stand pipe shower heads (4) are distributed along the length direction of branch net stand pipe (3).

3. A transformer water spray fire protection piping arrangement according to claim 1, characterized in that: The horizontal ring pipe (1) is provided with a plurality of connecting pieces (7), and the plurality of connecting pieces (7) are connected with the plurality of branch net stand pipes (3) one to one.

4. A transformer water spray fire protection piping arrangement according to claim 3, wherein: The connecting end of the connecting piece (7) and the branch net stand pipe (3) is provided with lower flange (8), the bottom end of the branch net stand pipe (3) is provided with upper flange (9), the upper flange (9) and lower flange (8) are pasted upside down, and the upper flange (9) and lower flange (8) are detachably fixed.

5. A transformer water spray fire protection piping arrangement according to claim 4, wherein: The lower flange (8) and the upper flange (9) are connected by bolts.

6. A transformer water spray fire protection piping arrangement according to claim 4, wherein: The horizontal ring pipe (1), connecting piece (7) and lower flange (8) are embedded in the ground.

7. A transformer water spray fire protection piping arrangement according to claim 6, characterised in that: The connecting piece (7) is provided with embedded steel plate (10), and the embedded steel plate (10) and the connecting piece (7) are connected through the reinforcing rib (11).

8. A transformer water spray fire protection piping arrangement according to claim 1, characterized in that: The upper of one group of branch net stand pipe (3) is provided with top spray cross pipe (5), and the two ends of top spray cross pipe (5) are connected with the top end of two branch net stand pipes (3) in this group of branch net stand pipes (3) respectively, and top spray cross pipe (5) is provided with top spray shower head (6).

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