CN109555192B - Underground double-layer fire-fighting pool for constructional engineering - Google Patents
Underground double-layer fire-fighting pool for constructional engineering Download PDFInfo
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- CN109555192B CN109555192B CN201910033278.1A CN201910033278A CN109555192B CN 109555192 B CN109555192 B CN 109555192B CN 201910033278 A CN201910033278 A CN 201910033278A CN 109555192 B CN109555192 B CN 109555192B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 437
- 239000007788 liquid Substances 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 abstract description 16
- 238000012937 correction Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 57
- 238000012423 maintenance Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Abstract
The invention belongs to the field of building fire control, and relates to an underground double-layer fire-fighting water tank for building engineering, which comprises a fire-fighting water tank below the ground surface, a fire-fighting water pump house and a pump house water collecting pit; the fire-fighting water tanks are an upper fire-fighting water tank and a lower fire-fighting water tank which are arranged in an upper-lower direction, wherein the upper fire-fighting water tank is used for storing outdoor fire-fighting water, and the lower fire-fighting water tank is used for storing indoor fire-fighting water; the lower part of the upper fire-fighting water pool is provided with the lowest effective water level, and the position of the lowest effective water level is connected with a fire-fighting truck water intake pipe. The lowest effective water level of the upper fire-fighting water pool meets the requirement that the water absorption height is not more than the maximum water absorption height after the altitude correction, and the lowest effective water level of the lower fire-fighting water pool meets the requirement within 10m below the ground. The lower fire-fighting pool can fully utilize the basement space of the building, and save investment. The fire-fighting water pump house is arranged beside the double-layer fire-fighting water pool in a concentrated mode, and the drainage pipe and the overflow pipe of the double-layer fire-fighting water pool can be connected into the water pit of the fire-fighting water pump house, so that the number of drainage pumps is reduced, and investment is saved.
Description
Technical Field
The invention belongs to the technical field of building fire engineering, and particularly relates to an underground double-layer fire-fighting pool for building engineering.
Background
The fire-fighting water pool is a water storage facility which is constructed manually and used for fixing or moving the fire-fighting water pump to absorb water. The fire-fighting water tank has the main function of storing fire-fighting water to extinguish fire, and the auxiliary function of facilitating water absorption by the water pump. The fire water tank for storing outdoor fire water or the fire water tank for taking water from the fire truck should be provided with a water intake (well), and the water absorption height should not be more than 6m. "not greater than 6m" is not to be understood as simply 6m: the local atmospheric pressure exceeds 10m water columns, and the maximum water absorption height of the water intake of the fire truck can be 6 m; the local atmospheric pressure is less than 10m water column, the maximum water absorption height of the water intake of the fire engine is calculated and determined, and the maximum water absorption height can be directly checked into a table 1 and cannot be defined as 6m in a general way. The fire-fighting water pool for taking water from the fire-fighting truck ensures that the height of the lowest water level and the central line of the fire-fighting pump suction pipe in the fire-fighting truck is not greater than the maximum water-absorbing height of the place where the fire-fighting water pump is located. For areas with the altitude of 300m, the height of the pump shaft of the fire truck is 1m, so that the elevation of the water intake bottom cannot be 5m lower than the ground where the fire truck is parked, and the heights of different altitude areas can be different.
As the altitude of many cities in China exceeds 300m, the maximum water absorption height of the fire-fighting water pump is correspondingly reduced according to the table 1. The basement layer height of the building is generally more than 5 meters, and the pipeline interlayer is arranged at the upper part of the basement, so that the basement layer height is generally more than 8 meters. For areas with the altitude exceeding 300m, if a single-layer fire-fighting pool is arranged, the area of the fire-fighting pool arranged in a basement of a building is increased, and the lower space of the fire-fighting pool cannot be effectively utilized, so that the waste of building space is caused.
Disclosure of Invention
Aiming at the problem that outdoor fire water is stored in a plurality of fire water tanks in high-altitude areas at present to cause waste of building space, the invention aims to provide an underground double-layer fire water tank for building engineering, which can reduce the waste of building space.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: an underground double-layer fire-fighting water pool for constructional engineering comprises a fire-fighting water pool below the ground surface, a fire-fighting water pump room and a pump room water pit; the method is characterized in that: the fire-fighting water tanks are an upper fire-fighting water tank and a lower fire-fighting water tank which are arranged in an upper-lower direction, wherein the upper fire-fighting water tank is used for storing outdoor fire-fighting water, and the lower fire-fighting water tank is used for storing indoor fire-fighting water; the lower part of the upper fire-fighting water pool is provided with the lowest effective water level, and the position of the lowest effective water level is connected with a fire-fighting truck water intake pipe.
The upper fire-fighting water pool is used for storing outdoor fire-fighting water, the lowest effective water level is above the maximum water absorption height after the altitude correction, and a fire-fighting water pool water intake pipe is led out below the lowest effective water level, so that the water absorption height is not more than the maximum water absorption height after the altitude correction; the lower layer fire water pond is used for storing indoor fire water and contains water for indoor hydrant, spraying and the like; can meet the requirement of utilizing the lower space and avoid wasting the building space.
The outdoor fire pump and the indoor fire pump are arranged in the same fire pump room, and the fire pump room is arranged beside the double-layer fire water pond.
The double-layer fire-fighting water pool provided by the invention is a fire-fighting water pool arranged in a storage room of a building basement and used for external fire-fighting water. The lowest effective water level of the upper fire-fighting water pool meets the requirement that the water absorption height is not more than the maximum water absorption height after the altitude correction, and the lowest effective water level of the lower fire-fighting water pool meets the requirement within 10m below the ground. The lower fire-fighting pool can fully utilize the basement space of the building, and save investment. The fire-fighting water pump house can be arranged beside the double-layer fire-fighting water pool in a centralized manner, and the drainage pipe and the overflow pipe of the double-layer fire-fighting water pool can be connected into the water pit of the fire-fighting water pump house, so that the number of drainage pumps is reduced, and the investment is saved. The invention has strong practicability and can be popularized and applied on a large scale.
Drawings
FIG. 1 is a schematic diagram of the structural relationship between an upper fire water pond and an outdoor fire water pump, etc.;
FIG. 2 is a schematic diagram of the structural relationship between a lower fire-fighting water tank and an indoor fire-fighting water pump;
FIG. 3 is a schematic diagram of the structural relationship of a double deck fire pool to a water supply system.
In the figure: 1-upper fire-water pond, 2-upper fire-water pond liquid level signal device, 3-upper fire-water pond overflow water level, 4-upper fire-water pond highest effective water level, 5-upper fire-water pond lowest effective water level, 6-cyclone prevention, 7-outdoor fire-water pump, 8-outdoor fire-water pump check valve, 9-outdoor fire-water pump manual gate valve, 10-water hammer absorber, 11-outdoor fire-water pump pressure relief valve, 12-outdoor fire-water pump water test valve, 13-outdoor fire-water pump direct-reading flow meter, 14-outdoor fire-water pump pressure relief pipe, 15-outdoor fire-water pump pressure switch, 16-outdoor fire-water pump water outlet pipe, 17-fire-water car water intake pipe, 18-upper fire-water pond maintenance opening, 19-lower fire-water pond, 20-lower fire-water pond liquid level signal device, 21-lower fire-water pond overflow water level, 22-the highest effective water level of a lower fire-fighting water tank, 23-the lowest effective water level of a lower fire-fighting water tank, 24-a water suction pipe bell mouth, 25-an indoor fire-fighting water pump, 26-an indoor fire-fighting water pump check valve, 27-an indoor fire-fighting water pump manual gate valve, 28-an indoor fire-fighting water pump relief valve, 29-an indoor fire-fighting water pump test valve, 30-an indoor fire-fighting water pump direct-reading flow meter, 31-an indoor fire-fighting water pump relief pipe, 32-an indoor fire-fighting water pump pressure switch, 33-an indoor fire-fighting water pump water outlet pipe, 34-a lower fire-fighting water tank maintenance hole, 35-a fire-fighting water tank water inlet pipe, 36-an upper fire-fighting water tank remote-control ball float valve, 37-lower fire-fighting water tank remote-control ball float valve, 38-upper fire-fighting water tank overflow pipe, 39-upper fire-fighting water tank drain pipe, 40-lower fire-fighting water tank overflow pipe, 41-lower fire-fighting water tank drain pipe, 42-collecting pit, 43-fire-fighting water pump room, 44-second water hammer absorber, 45-ground surface, 46-water drain valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings. As shown in fig. 1: an underground double-layer fire-fighting water tank for constructional engineering comprises a fire-fighting water tank, a fire-fighting water pump house 43 and a pump house water pit 42, wherein the fire-fighting water tank, the fire-fighting water pump house 43 and the pump house water pit 42 are arranged below a ground surface 45; the fire-fighting water tanks are an upper fire-fighting water tank 1 and a lower fire-fighting water tank 19 which are arranged in an upper-lower direction, wherein the upper fire-fighting water tank 1 is used for storing outdoor fire-fighting water, the lower fire-fighting water tank 19 is used for storing indoor fire-fighting water, and the indoor fire-fighting water comprises an indoor hydrant, spraying and the like; the lower part of the upper layer fire-fighting water tank 1 is provided with the lowest effective water level 5 of the upper layer fire-fighting water tank, and the position of the lowest effective water level 5 of the upper layer fire-fighting water tank is connected with a fire truck water intake pipe 17. The lowest effective water level 5 of the upper fire-fighting pool is above the maximum water absorption height after the altitude correction, and the requirement that the water absorption height is not more than the maximum water absorption height after the altitude correction is met.
The fire pump room 43 is provided with the outdoor fire pump 7 and the indoor fire pump 25, namely the outdoor fire pump 7 and the indoor fire pump 25 are arranged in the same fire pump room 43, and the fire pump room 43 is arranged beside the upper fire water pool 1 and the lower fire water pool 19; saving space and investment.
The upper layer fire water pond 1 is internally provided with a cyclone preventing device 6, a water inlet pipe of the outdoor fire water pump 7 is connected with the cyclone preventing device 6, and a manual gate valve and a pressure gauge (not shown in the figure) are arranged on the water inlet pipe of the outdoor fire water pump 7; the outdoor fire pump 7 prevents the cyclone 6 from sucking water from the upper fire pool 1.
The water outlet end of the outdoor fire pump water outlet pipe 16 is connected to an outdoor fire pipe network, and the outdoor fire pump water outlet pipe 16 is provided with an outdoor fire pump check valve 8, an outdoor fire pump manual gate valve 9 and an outdoor fire pump pressure switch 15. To prevent the damage of water hammer, the water hammer absorber 10 is arranged on the water outlet pipe 16 of the outdoor fire water pump.
When the fire-fighting water tank water inlet valve cannot be normally closed, the water level of the fire-fighting water tank is prevented from continuously rising by water entering the fire-fighting water tank, the pressure-bearing capacity of the water tank wall is exceeded, the structural safety of the fire-fighting water tank is destroyed, the upper fire-fighting water tank 1 is provided with an upper fire-fighting water tank highest effective water level 4 and an upper fire-fighting water tank overflow water level 3, and the upper fire-fighting water tank overflow water level 3 is positioned above the upper fire-fighting water tank highest effective water level 4.
When abnormal conditions occur and lead to the pressure of the fire-fighting pipe network to be too high, in order to prevent the damage of fire-fighting pipe and valve, two outdoor fire-fighting water pump pressure relief pipes 14 are arranged on the outdoor fire-fighting water pump outlet pipe 16, one outdoor fire-fighting water pump pressure relief pipe 14 is provided with an outdoor fire-fighting water pump pressure relief valve 11, the other outdoor fire-fighting water pump pressure relief pipe 14 is provided with an outdoor fire-fighting water pump water test valve 12 and an outdoor fire-fighting water pump direct-reading flow meter 13 for system test use, the two outdoor fire-fighting water pump pressure relief pipes 14 share a pressure relief outlet, and the pressure relief outlet is positioned in the space above the overflow water level 3 of the upper fire-fighting water pond 1.
An upper layer fire-fighting water tank liquid level signal device 2 is arranged in the upper layer fire-fighting water tank 1; the upper fire-fighting water tank liquid level signal device 2 is used for monitoring the water level of the upper fire-fighting water tank 1, and has the function of displaying the water level in situ and displaying the water level in a fire-fighting control center or a duty room.
As shown in fig. 2: the lower part of the lower fire-fighting water tank 19 is provided with the lowest effective water level 23 of the lower fire-fighting water tank, and the lowest effective water level of the lower fire-fighting water tank meets the requirement within 10m below the ground.
The bottom of the lower fire-fighting water pool 19 is provided with a concave water collecting pool, the water absorbing end of the water inlet pipe of the indoor fire-fighting water pump 25 is provided with a water absorbing pipe horn mouth 24, and the water absorbing pipe horn mouth 24 is positioned in the concave water collecting pool. The indoor fire pump 25 sucks water from the lower fire pool 19 through the suction pipe bell 24.
The water outlet end of the indoor fire pump water outlet pipe 33 is connected to an indoor fire pipe network, and the indoor fire pump water outlet pipe 33 is provided with an indoor fire pump check valve 26, an indoor fire pump manual gate valve 27 and an indoor fire pump pressure switch 32. To prevent the water hammer hazard, the indoor fire pump outlet 33 is provided with a second water hammer collector 44.
When abnormal conditions cause the pressure of the fire-fighting pipe network to be too high, in order to prevent the damage of the fire-fighting pipe and the valve, the lower-layer fire-fighting water tank 19 is provided with a lower-layer fire-fighting water tank maximum effective water level 22 and a lower-layer fire-fighting water tank overflow water level 21, and the lower-layer fire-fighting water tank overflow water level 21 is positioned above the lower-layer fire-fighting water tank maximum effective water level 22.
When abnormal conditions occur and lead to the pressure of the fire-fighting pipe network to be too high, in order to prevent the damage of fire-fighting pipe and valve, two indoor fire-fighting water pump pressure relief pipes 31 are arranged on an indoor fire-fighting water pump water outlet pipe 33, one indoor fire-fighting water pump pressure relief pipe 31 is provided with an indoor fire-fighting water pump pressure relief valve 28, the other indoor fire-fighting water pump pressure relief pipe 31 is provided with an indoor fire-fighting water pump water test valve 29 and an indoor fire-fighting water pump direct-reading flowmeter 30 for system test use, the two indoor fire-fighting water pump pressure relief pipes 14 share one pressure relief outlet, and the pressure relief outlet is positioned in the space above the overflow water level 21 of the lower fire-fighting water pond 19. Therefore, the lower building space of the upper fire-fighting pool can be fully utilized, and the space and investment are saved.
A lower fire-fighting water tank liquid level signal device 20 is arranged in the lower fire-fighting water tank 19; the water level monitoring device is used for monitoring the water level of the lower-layer fire-fighting water tank 19, and the lower-layer fire-fighting water tank liquid level signal device 20 has the function of displaying the water level in situ and displaying the water level in a fire control center or a duty room.
See fig. 3: the upper layer fire-fighting water tank 1 and the lower layer fire-fighting water tank 19 share a fire-fighting water tank water inlet pipe 35, and an upper layer fire-fighting water tank remote control ball float valve 36 and a lower layer fire-fighting water tank remote control ball float valve 37 are correspondingly arranged on water inlet pipes of the upper layer fire-fighting water tank 1 and the lower layer fire-fighting water tank 19, floating balls of the two remote control ball float valves are respectively positioned on the liquid surfaces of the upper fire-fighting water tank and the lower fire-fighting water tank, and the remote control ball float valves are used for controlling the water level of the fire-fighting water tank. The fire water pump room 43 is provided with a pump room water collecting pit 42, the upper layer fire water tank 1 is provided with an upper layer fire water tank overflow pipe 38 and an upper layer fire water tank drain pipe 39, the water inlet of the upper layer fire water tank overflow pipe 38 is level with the upper layer fire water tank overflow water level 3, and the water inlet of the upper layer fire water tank drain pipe 39 is positioned below the lowest effective water level 5 of the upper layer fire water tank; the lower-layer fire-fighting water tank 19 is provided with a lower-layer fire-fighting water tank overflow pipe 40 and a lower-layer fire-fighting water tank drain pipe 41, the water inlet of the lower-layer fire-fighting water tank overflow pipe 40 is flush with the lower-layer fire-fighting water tank overflow water level 21, and the water inlet of the lower-layer fire-fighting water tank drain pipe 41 is positioned below the lower-layer fire-fighting water tank lowest effective water level 23; the water outlets of the upper layer fire-fighting water tank overflow pipe 38, the upper layer fire-fighting water tank drain pipe 39, the lower layer fire-fighting water tank overflow pipe 40 and the lower layer fire-fighting water tank drain pipe 41 are all communicated with the pump house water pit 42. And the water collection pit is shared, so that the space and the investment are saved. The upper layer fire-fighting water tank drain pipe 39 and the lower layer fire-fighting water tank drain pipe 41 are respectively provided with a drain valve 46.
The upper layer fire-fighting water tank 1 and the lower layer fire-fighting water tank 19 are of closed structures; for convenient maintenance, the upper layer fire-fighting water tank 1 is provided with an upper layer fire-fighting water tank maintenance hole 18, and the lower layer fire-fighting water tank 19 is provided with a lower layer fire-fighting water tank maintenance hole 34; the upper and lower fire-fighting water tank access ports 18, 34 open to the fire pump room 43 so that water can be accessed from the fire pump room for service.
Claims (4)
1. An underground double-layer fire-fighting water pool for constructional engineering comprises a fire-fighting water pool, a fire-fighting water pump house and a pump house water pit, wherein the fire-fighting water pool, the fire-fighting water pump house and the pump house water pit are arranged below the ground surface (45); the method is characterized in that: the fire-fighting water tanks are an upper fire-fighting water tank (1) and a lower fire-fighting water tank (19) which are arranged in an upper-lower direction, the upper fire-fighting water tank (1) is used for storing outdoor fire-fighting water, the lower fire-fighting water tank (19) is used for storing indoor fire-fighting water, and the indoor fire-fighting water comprises an indoor hydrant and spraying; the lower part of the upper-layer fire-fighting water tank (1) is provided with the lowest effective water level (5) of the upper-layer fire-fighting water tank, and the position of the lowest effective water level (5) of the upper-layer fire-fighting water tank is connected with a fire truck water intake pipe (17);
The fire-fighting water pump room (43) is provided with an outdoor fire-fighting water pump (7) and an indoor fire-fighting water pump (25), and the fire-fighting water pump room (43) is arranged beside the upper fire-fighting water tank (1) and the lower fire-fighting water tank (19);
a cyclone preventing device (6) is arranged in the upper fire water pool (1), a water inlet pipe of an outdoor fire water pump (7) is connected with the cyclone preventing device (6), and a manual gate valve and a pressure gauge are arranged on the water inlet pipe of the outdoor fire water pump (7); the water outlet end of the outdoor fire pump water outlet pipe (16) is connected to an outdoor fire pipe network;
An outdoor fire pump check valve (8), an outdoor fire pump manual gate valve (9) and an outdoor fire pump pressure switch (15) are arranged on the outdoor fire pump outlet pipe (16); a water hammer absorber (10) is arranged on a water outlet pipe (16) of the outdoor fire pump;
Two outdoor fire pump pressure relief pipes (14) are arranged on the outdoor fire pump water outlet pipe (16), one outdoor fire pump pressure relief pipe (14) is provided with an outdoor fire pump pressure relief valve (11), the other outdoor fire pump pressure relief pipe (14) is provided with an outdoor fire pump water test valve (12) and an outdoor fire pump direct-reading flowmeter (13), the two outdoor fire pump pressure relief pipes (14) share a pressure relief outlet, and the pressure relief outlet is positioned in the space above the overflow water level (3) of the upper fire water pond (1);
The water outlet end of the indoor fire pump water outlet pipe (33) is connected to an indoor fire pipe network, and an indoor fire pump check valve (26), an indoor fire pump manual gate valve (27) and an indoor fire pump pressure switch (32) are arranged on the indoor fire pump water outlet pipe (33); the indoor fire water pump outlet pipe (33) is provided with a second water hammer absorber (44);
Be equipped with two indoor fire pump pressure release pipes (31) on indoor fire pump water outlet pipe (33), one indoor fire pump pressure release pipe (31) is equipped with indoor fire pump relief valve (28), another indoor fire pump pressure release pipe (31) is equipped with indoor fire pump water test valve (29) and indoor fire pump direct-reading flowmeter (30), two indoor fire pump pressure release pipes (31) share a pressure release export, the pressure release export is located the top space of lower floor's fire pool overflow water level (21) of lower floor's fire pool (19).
2. An underground double-deck fire-fighting pond for construction works according to claim 1, wherein: the upper layer fire-fighting water tank (1) and the lower layer fire-fighting water tank (19) share a fire-fighting water tank water inlet pipe (35), and upper layer fire-fighting water tank remote control ball float valves (36) and lower layer fire-fighting water tank remote control ball float valves (37) are correspondingly arranged on water inlet branch pipes of the upper layer fire-fighting water tank (1) and the lower layer fire-fighting water tank (19), and floating balls of the two remote control ball float valves are respectively positioned on liquid surfaces of the upper fire-fighting water tank and the lower fire-fighting water tank.
3. An underground double-deck fire-fighting pool for construction works according to claim 1 or 2, wherein: the fire-fighting water pump room (43) is provided with a pump room water collecting pit (42), the upper-layer fire-fighting water tank (1) is provided with an upper-layer fire-fighting water tank overflow pipe (38) and an upper-layer fire-fighting water tank drain pipe (39), the water inlet of the upper-layer fire-fighting water tank overflow pipe (38) is flush with the upper-layer fire-fighting water tank overflow water level (3), and the water inlet of the upper-layer fire-fighting water tank drain pipe (39) is positioned below the lowest effective water level (5) of the upper-layer fire-fighting water tank; the lower-layer fire-fighting water tank (19) is provided with a lower-layer fire-fighting water tank overflow pipe (40) and a lower-layer fire-fighting water tank drain pipe (41), a water inlet of the lower-layer fire-fighting water tank overflow pipe (40) is flush with a lower-layer fire-fighting water tank overflow water level (21), and a water inlet of the lower-layer fire-fighting water tank drain pipe (41) is positioned below a lowest effective water level (23) of the lower-layer fire-fighting water tank; the upper layer fire-fighting water tank overflow pipe (38), the upper layer fire-fighting water tank drain pipe (39), the lower layer fire-fighting water tank overflow pipe (40) and the water outlet of the lower layer fire-fighting water tank drain pipe (41) are all communicated with the pump house water collection pit (42).
4. A double-deck fire pool for use in construction engineering according to claim 3, wherein: an upper layer fire-fighting water tank liquid level signal device (2) is arranged in the upper layer fire-fighting water tank (1); a lower-layer fire-fighting water tank liquid level signal device (20) is arranged in the lower-layer fire-fighting water tank (19); the upper layer fire-fighting water tank (1) and the lower layer fire-fighting water tank (19) are of closed structures; the upper layer fire-fighting water tank (1) is provided with an upper layer fire-fighting water tank overhaul port (18), and the lower layer fire-fighting water tank (19) is provided with a lower layer fire-fighting water tank overhaul port (34); the upper fire-fighting water tank access hole (18) and the lower fire-fighting water tank access hole (34) are opened to the fire-fighting water pump house (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033278.1A CN109555192B (en) | 2019-01-14 | Underground double-layer fire-fighting pool for constructional engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033278.1A CN109555192B (en) | 2019-01-14 | Underground double-layer fire-fighting pool for constructional engineering |
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| Publication Number | Publication Date |
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| CN109555192A CN109555192A (en) | 2019-04-02 |
| CN109555192B true CN109555192B (en) | 2024-06-21 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209837172U (en) * | 2019-01-14 | 2019-12-24 | 中国市政工程西北设计研究院有限公司 | Underground double-layer fire pool for building engineering |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209837172U (en) * | 2019-01-14 | 2019-12-24 | 中国市政工程西北设计研究院有限公司 | Underground double-layer fire pool for building engineering |
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