CN115569319A - Normal-pressure fire-fighting water supply system suitable for super high-rise building and design method thereof - Google Patents
Normal-pressure fire-fighting water supply system suitable for super high-rise building and design method thereof Download PDFInfo
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- CN115569319A CN115569319A CN202211090178.0A CN202211090178A CN115569319A CN 115569319 A CN115569319 A CN 115569319A CN 202211090178 A CN202211090178 A CN 202211090178A CN 115569319 A CN115569319 A CN 115569319A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0214—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for buildings or installations in fire storms
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/64—Pipe-line systems pressurised
- A62C35/645—Pipe-line systems pressurised with compressed gas in pipework
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
Abstract
The invention discloses an atmospheric and high-pressure fire-fighting water supply system suitable for a super high-rise building and a design method thereof, aiming at the super high-rise building which is difficult to realize full-floor atmospheric and high-pressure water supply through the self gravity of a high-position fire-fighting water pool. The invention can maintain the static pressure of the fire-fighting water fire-extinguishing system in the high-rise building without additionally arranging a fire-fighting pressure-stabilizing system. In addition, the normal-pressure and high-pressure fire-fighting water supply device can realize 'follow-up and stop' of constant-pressure water, does not need additional reset operation, and simplifies the test and maintenance flow in the later operation process.
Description
Technical Field
The invention relates to the technical field of fire-fighting water supply systems, in particular to a normal-pressure fire-fighting water supply system suitable for super high-rise buildings and a design method thereof.
Background
According to the statistics related to the world high-rise buildings and the urban society, the number of the high-rise buildings more than 150 meters in China exceeds 2900, wherein the number of the high-rise buildings more than 200 meters exceeds 900, and the number of the high-rise buildings more than 500 meters reaches 6. Although the super high-rise building in China experiences multiple times of height limitation, the super high-rise building is still a building form pursued by the visual landmark of the city. However, once a fire disaster occurs in the super high-rise building, local fire fighting and rescue forces are often difficult to match, and the super high-rise building can only depend on fire fighting facilities in the building, personnel self-rescue, roof helicopter rescue and the like, so that higher requirements are provided for the fire fighting and water supply reliability of the super high-rise building.
For super high-rise buildings, especially super high-rise buildings with the height of more than 250 meters, the super high-rise buildings with the height of more than 250 meters are limited by factors such as the shape of a tower crown, the lifting height of a roof parking apron and a high-level fire pool, and the like, and the super high-rise buildings with the height of more than 250 meters are difficult to realize the normal-pressure water supply of all floors by the self gravity of the high-level fire pool. Adopt high-order fire-fighting water pool gravity water supply in the well low district usually in the design, the high district adopts interim high pressure fire control water supply system, and high district fire water extinguishing installation relies on the static pressure of voltage regulator device maintenance fire water extinguishing installation most unfavorable department under the non-conflagration operating mode promptly, needs to realize fire water extinguishing system's pressurization water supply through starting the fire control main pump under the conflagration operating mode. However, the fire-fighting main pump is affected by the reliability of power supply, the integrity of the water pump performance and the manual/automatic state of the water pump control cabinet, and great unreliability is brought to fire-fighting water supply.
In order to solve the problem of reliability of water supply in the high-rise area of the super high-rise building and simplify the components of a fire-fighting water supply system, a new fire-fighting water supply system suitable for the super high-rise building and a design method thereof need to be provided.
It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a normal-pressure fire-fighting water supply system suitable for a super high-rise building and a design method thereof, which are used for solving the problem of water supply reliability of a high-rise area of the super high-rise building in the prior art and simplifying the components of the fire-fighting water supply system.
In order to solve the technical problems, the invention provides a normal-pressure fire-fighting water supply system suitable for an ultra-high-rise building, which comprises an air supply device, a driving device and a water supply device, wherein the air supply device is connected with the air supply device;
the air supply device comprises an air compressor, an air supply pipe, a gas one-way valve, a compressed air tank, an air supply pipeline and an air supply pressure reducing valve which are sequentially connected, wherein the compressed air tank comprises a safety valve and a pressure supply linkage device, and the pressure supply linkage device comprises an electric contact pressure gauge and a linkage control circuit;
the driving device comprises a constant-pressure air chamber, a first breathing pipe, a second breathing pipe, a driving cylinder, a pressurized water cavity and a transmission device, wherein the constant-pressure air chamber comprises an exhaust valve and an exhaust hole, the pressurized water cavity comprises a breathing hole, a fire-fighting water fire-extinguishing system water supply pipeline and a fire-fighting water supply check valve, and the transmission device comprises a sliding block, a sliding block transmission rod, a transmission rod hinge point, a rotary fixing point and a piston transmission rod;
the water supply device comprises a high-level fire pool, a water supply pipeline and a high-level fire pool water supply check valve which are sequentially connected.
Optionally, the compressed gas in the constant-pressure gas chamber and the driving cylinder is air, and the gas pressure ranges from 0.25MPa to 0.7MPa.
Optionally, the time range of the driving gas in the driving cylinder for pushing the piston transmission rod to exhaust and absorb water is 0.01 s-0.05 s.
Optionally, the diameter of the pressurized water chamber is 3 to 10 times the diameter of the driving cylinder.
Optionally, the flow of fire fighting water produced by the atmospheric and high pressure water supply system is regulated by the volume of the drive cylinder and the pressurized water chamber.
Optionally, the driving cylinder automatically completes the processes of inflation and water absorption along with the shutdown of the water supply pipeline of the fire water extinguishing system, and maintains the static pressure of the fire water extinguishing system.
Based on the same invention concept, the invention also provides a design method of the normal-pressure fire-fighting water supply system suitable for the super high-rise building, which comprises the following steps:
s1: under the non-fire working condition, the electric contact pressure gauge senses the reduction of gas pressure, an air compressor is started in a linkage manner to supplement air for the compressed gas tank, and the air supplementing process is stopped after the air pressure reaches the set pressure;
s2: the high-pressure gas in the compressed gas tank is decompressed by a decompression valve and then enters a constant-pressure gas chamber;
s3: in the initial state, no pressure gas exists in the driving cylinder, and the piston transmission rod moves leftwards under the action of the water pressure of the high-level fire pool to enable the pressure water cavity to absorb water;
s4: the piston transmission rod moves leftwards, the sliding block moves rightwards under the transmission action of the sliding block transmission rod, so that the constant-pressure air chamber is communicated with the breathing pipe, fire water in the pressurized water cavity obtains static pressure under the action of air pressure, and the normal-pressure and high-pressure water supply system is in a servo state;
s5: under the working condition of fire, after the fire-fighting water fire-extinguishing system is started, fire-fighting water in the pressurized water cavity is supplied with water at constant pressure under the action of compressed gas in the driving cylinder, the piston transmission rod moves rightwards, the slide block moves leftwards under the transmission action of the slide block transmission rod, so that the constant-pressure air chamber is communicated with the breathing pipe, the right side of the driving cylinder obtains pressure, and the left-side pressurized gas is discharged from the exhaust hole through the breathing pipe;
s6: and (5) repeating the steps S2 to S5 to realize the continuous supply of the constant-pressure water.
Compared with the prior art, the invention has the following beneficial effects:
1. the pressurization power source for eliminating water in the normal-pressure fire-fighting water supply system suitable for the super high-rise building is pre-stored compressed gas, the pressure is constant, extra power supply is not needed in case of fire, the manual/automatic state of the device is not influenced, and the reliability of fire-fighting water supply is greatly improved;
2. the static pressure of the fire-fighting water fire-extinguishing system is automatically maintained, an additional pressure stabilizing device is not needed, and the components of a fire-fighting water supply system are simplified;
3. the automatic fire fighting water automatic resetting device can automatically reset, realize 'use and stop at any time' of fire fighting water, and simplify the testing and maintaining processes in the later operation process.
The design method of the normal-pressure fire-fighting water supply system suitable for the super high-rise building and the normal-pressure fire-fighting water supply system suitable for the super high-rise building belong to the same invention concept, so that the design method has the same beneficial effects, and the repeated description is omitted.
Drawings
Fig. 1 is a schematic structural diagram of a normal-pressure fire-fighting water supply system suitable for a super high-rise building according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of a method for designing an atmospheric-pressure fire-fighting water supply system for a super high-rise building according to another embodiment of the present invention;
1-linkage control line, 2-electric contact pressure gauge, 3-compressed gas tank, 4-safety valve, 5-high fire pool, 6-air supplement pipe, 7-air supply pressure reducing valve, 8-air supply pipeline, 9-slide block transmission rod, 10-high fire pool water supply check valve, 11-gas one-way valve, 12-exhaust valve, 13-slide block, 14-transmission rod hinged point, 15-constant pressure air chamber, 16-rotation fixed point, 17-water supply pipeline, 18-exhaust hole, 19-fire control water supply check valve, 20-first breather pipe, 21-air compressor, 22-driving cylinder, 23-second breather pipe, 24-piston transmission rod, 25-breather hole, 26-pressurized water chamber, and 27-fire control water fire extinguishing system water supply pipeline.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
Referring to fig. 1, an embodiment of the present invention provides a normal-pressure and high-pressure fire water supply system suitable for a super high-rise building, including an air supply device, a driving device and a water supply device;
the air supply device comprises an air compressor 21, an air supply pipe 6, a gas one-way valve 11, a compressed air tank 3, an air supply pipeline 8 and an air supply pressure reducing valve 7 which are connected in sequence, wherein the compressed air tank 3 comprises a safety valve 4 and a pressure supplementing linkage device, and the pressure supplementing linkage device comprises an electric contact pressure gauge 2 and a linkage control circuit 1;
the driving device comprises a constant pressure air chamber 15, a first breathing pipe 20, a second breathing pipe 23, a driving air cylinder 22, a pressurized water cavity 26 and a transmission device, wherein the constant pressure air chamber 15 comprises an exhaust valve 12 and an exhaust hole 18, the pressurized water cavity 26 comprises a breathing hole 25, a fire water fire extinguishing system water supply pipeline 27 and a fire water supply check valve 19, and the transmission device comprises a slider 13, a slider transmission rod 9, a transmission rod hinge point 14, a rotation fixing point 16 and a piston transmission rod 24;
the water supply device comprises a high-level fire pool 5, a water supply pipeline 17 and a high-level fire pool water supply check valve 10 which are connected in sequence.
Optionally, the compressed gas in the constant pressure air chamber 15 and the driving cylinder 22 is air, and the gas pressure is adjustable within the range of 0.25MPa to 0.7MPa.
Optionally, the time range of the driving air in the driving air cylinder 22 for pushing the piston transmission rod 24 to exhaust and absorb water is 0.01 s-0.05 s and is adjustable.
Optionally, the diameter of the pressurized water chamber 26 is 3 to 10 times the diameter of the driving cylinder 22.
Optionally, the flow of fire fighting water produced by the atmospheric water supply system is regulated by the volume of the drive cylinder 22 and the pressurized water chamber 26.
Alternatively, the driving cylinder 22 automatically completes the inflation and water absorption processes along with the shutdown of the water supply pipeline 27 of the fire water extinguishing system, and maintains the static pressure of the fire water extinguishing system.
Referring to fig. 2, based on the same inventive concept, an embodiment of the present invention further provides a design method of a normal-pressure fire water supply system suitable for a super high-rise building, including the following steps:
s1: under the non-fire working condition, the electric contact pressure gauge 2 senses the reduction of gas pressure, the air compressor 21 is started in a linkage manner to supplement air for the compressed air tank 3, and the air supplementing process is stopped after the air pressure reaches the set pressure;
s2: the high-pressure gas in the compressed gas tank 3 is decompressed by the decompression valve 7 and then enters the constant-pressure gas chamber 15;
s3: in the initial state, no pressure gas exists in the driving cylinder 22, and the piston transmission rod 24 moves leftwards under the action of the water pressure of the high-level fire pool 5 to enable the pressure water cavity 26 to absorb water;
s4: the piston transmission rod 24 moves leftwards, the slide block 13 moves rightwards under the transmission action of the slide block transmission rod 9, so that the constant-pressure air chamber 15 is communicated with the breathing pipe, the fire water in the pressurized water cavity 26 obtains static pressure under the action of air pressure, and the constant-pressure and high-pressure water supply system is in a servo state at the moment;
s5: under the working condition of fire, after the fire-fighting water fire-extinguishing system is started, fire-fighting water in the pressurized water cavity 26 is supplied with water at constant pressure under the action of compressed gas in the driving cylinder 22, the piston transmission rod 24 moves rightwards, the slide block 13 moves leftwards under the transmission action of the slide block transmission rod 9, so that the constant-pressure air chamber 15 is communicated with the breathing pipe, the right side of the driving cylinder 22 obtains pressure, and the left-side pressurized gas is discharged at the exhaust hole 18 through the breathing pipe;
s6: and (5) repeating the steps S2 to S5 to realize the continuous supply of the constant-pressure water.
Compared with the prior art, the invention has the following beneficial effects:
1. the pressurization power source for water elimination in the normal-pressure fire-fighting water supply system suitable for the super high-rise building is pre-stored compressed gas, the pressure is constant, extra power supply is not needed during fire, the manual/automatic state of the device is not influenced, and the reliability of fire-fighting water supply is greatly improved;
2. the static pressure of the fire-fighting water fire-extinguishing system is automatically maintained, an additional pressure stabilizing device is not needed, and the components of a fire-fighting water supply system are simplified;
3. the automatic fire fighting water automatic resetting device can automatically reset, realize 'use and stop at any time' of fire fighting water, and simplify the testing and maintaining processes in the later operation process.
The design method of the normal-pressure fire-fighting water supply system suitable for the super high-rise building and the normal-pressure fire-fighting water supply system suitable for the super high-rise building belong to the same invention concept, so that the design method has the same beneficial effects, and the repeated description is omitted.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A normal-pressure fire-fighting water supply system suitable for super high-rise buildings is characterized by comprising an air supply device, a driving device and a water supply device;
the air supply device comprises an air compressor, an air supply pipe, a gas one-way valve, a compressed air tank, an air supply pipeline and an air supply pressure reducing valve which are sequentially connected, wherein the compressed air tank comprises a safety valve and a pressure supply linkage device, and the pressure supply linkage device comprises an electric contact pressure gauge and a linkage control circuit;
the fire-fighting water supply device comprises a driving device, a pressure-boosting water chamber and a transmission device, wherein the driving device comprises a constant-pressure air chamber, a first breathing pipe, a second breathing pipe, a driving air cylinder, a pressure-boosting water chamber and a transmission device, the constant-pressure air chamber comprises an exhaust valve and an exhaust hole, the pressure-boosting water chamber comprises a breathing hole, a fire-fighting water fire-fighting system water supply pipeline and a fire-fighting water supply check valve, and the transmission device comprises a sliding block, a sliding block transmission rod, a transmission rod hinge point, a rotary fixed point and a piston transmission rod;
the water supply device comprises a high-level fire pool, a water supply pipeline and a high-level fire pool water supply check valve which are sequentially connected.
2. A fire fighting water supply system at normal pressure and high pressure suitable for super high rise building as claimed in claim 1, wherein the compressed gas in said constant pressure air chamber and said driving cylinder is air, and the gas pressure is in the range of 0.25MPa to 0.7MPa.
3. The normal-pressure and high-pressure fire-fighting water supply system suitable for the super high-rise building according to claim 1 or 2, wherein the time range for driving air in the driving cylinder to push the piston transmission rod to exhaust and absorb water is 0.01 s-0.05 s.
4. The normal-high pressure fire fighting water supply system for super high-rise buildings according to claim 1, wherein the diameter of the pressurized water chamber is 3 to 10 times the diameter of the driving cylinder.
5. The normal-high pressure fire fighting water supply system suitable for super high-rise buildings according to claim 1 or 4, wherein the flow rate of fire fighting water generated by the normal-high pressure water supply system is adjusted by the volumes of the driving cylinder and the pressurized water chamber.
6. A fire fighting water supply system at normal pressure and high pressure suitable for super high-rise buildings according to claim 1, wherein the driving cylinder automatically completes the processes of inflation and water absorption when the water supply pipeline of the fire fighting water system is shut down, and maintains the static pressure of the fire fighting water system.
7. A design method of a normal-pressure fire-fighting water supply system suitable for a super high-rise building is characterized by comprising the following steps:
s1: under the non-fire working condition, the electric contact pressure gauge senses the reduction of gas pressure, an air compressor is started in a linkage manner to supplement air for the compressed gas tank, and the air supplementing process is stopped after the air pressure reaches the set pressure;
s2: the high-pressure gas in the compressed gas tank is decompressed by a pressure reducing valve and then enters a constant-pressure gas chamber;
s3: in an initial state, no pressurized gas exists in the driving cylinder, and the piston transmission rod moves leftwards under the action of the water pressure of the high-level fire pool to enable the pressurized water cavity to absorb water;
s4: the piston transmission rod moves leftwards, the sliding block moves rightwards under the transmission action of the sliding block transmission rod, so that the constant-pressure air chamber is communicated with the breathing pipe, fire water in the pressurized water cavity obtains static pressure under the action of air pressure, and the normal-pressure and high-pressure water supply system is in a servo state;
s5: under the working condition of fire, after the fire-fighting water fire-extinguishing system is started, fire-fighting water in the pressurized water cavity is supplied with water at constant pressure under the action of compressed gas in the driving cylinder, the piston transmission rod moves rightwards, the slide block moves leftwards under the transmission action of the slide block transmission rod, so that the constant-pressure air chamber is communicated with the breathing pipe, the right side of the driving cylinder obtains pressure, and the left-side pressurized gas is discharged from the exhaust hole through the breathing pipe;
s6: and (5) repeating the steps S2 to S5 to realize the continuous supply of the constant-pressure water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211090178.0A CN115569319B (en) | 2022-09-07 | 2022-09-07 | Normal-high pressure fire-fighting water supply system suitable for super high-rise building and design method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211090178.0A CN115569319B (en) | 2022-09-07 | 2022-09-07 | Normal-high pressure fire-fighting water supply system suitable for super high-rise building and design method thereof |
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| CN115569319A true CN115569319A (en) | 2023-01-06 |
| CN115569319B CN115569319B (en) | 2023-09-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000007077A (en) * | 1999-11-24 | 2000-02-07 | 함서동 | Apparatus For Suppling Water Using Air Pressure |
| CN111388927A (en) * | 2020-04-07 | 2020-07-10 | 中国建筑西北设计研究院有限公司 | Ultrahigh-rise indoor fire hydrant series water supply method and system |
| CN111544817A (en) * | 2020-06-15 | 2020-08-18 | 合肥巨澜安全技术有限责任公司 | Fire extinguishing system and fire extinguishing method for super high-rise building |
| CN212575505U (en) * | 2020-06-05 | 2021-02-23 | 邹顺 | High-rise building is pressure equipment for fire hydrant |
| CN213285461U (en) * | 2021-03-03 | 2021-05-28 | 烟台豪特氧业设备有限公司 | Automatic updating system for fire water of hyperbaric oxygen chamber |
-
2022
- 2022-09-07 CN CN202211090178.0A patent/CN115569319B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000007077A (en) * | 1999-11-24 | 2000-02-07 | 함서동 | Apparatus For Suppling Water Using Air Pressure |
| CN111388927A (en) * | 2020-04-07 | 2020-07-10 | 中国建筑西北设计研究院有限公司 | Ultrahigh-rise indoor fire hydrant series water supply method and system |
| CN212575505U (en) * | 2020-06-05 | 2021-02-23 | 邹顺 | High-rise building is pressure equipment for fire hydrant |
| CN111544817A (en) * | 2020-06-15 | 2020-08-18 | 合肥巨澜安全技术有限责任公司 | Fire extinguishing system and fire extinguishing method for super high-rise building |
| CN213285461U (en) * | 2021-03-03 | 2021-05-28 | 烟台豪特氧业设备有限公司 | Automatic updating system for fire water of hyperbaric oxygen chamber |
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| CN115569319B (en) | 2023-09-29 |
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