CN101125241A - Automatic fire-extinguishing system with temporary drainage function and temporary drainage method - Google Patents
Automatic fire-extinguishing system with temporary drainage function and temporary drainage method Download PDFInfo
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- CN101125241A CN101125241A CNA2007100596819A CN200710059681A CN101125241A CN 101125241 A CN101125241 A CN 101125241A CN A2007100596819 A CNA2007100596819 A CN A2007100596819A CN 200710059681 A CN200710059681 A CN 200710059681A CN 101125241 A CN101125241 A CN 101125241A
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Abstract
The invention discloses an automatic fire extinguishing system with temporary tapping function, which mainly comprises a water supplying device, a drenching valve, a plurality of false spraying preventing nozzles, a flooding valve, and a temporary tapping device which is in parallel connected to a main pipeline between the water supplying device and the drenching valve. The temporary tapping device comprises a transducer connected with the main pipeline, a water draining valve connected with the transducer, and a timing device in parallel connected with the transducer and the water draining valve. The automatic fire extinguishing system with temporary tapping function of the invention is additionally provided with a temporary device in the false spraying resisting automatic fire distinguishing system of the prior art so as to have small alternation to the original system with low alternation fee and high economic benefit. Furthermore, the temporary tapping device can prevent the false spraying problem happening when the water supplying device is not started but the drenching valve is started, and the flooding valve does not have enough pressure volume or reaches the closing pressure so as to improve the reliability of the automatic fire extinguishing system.
Description
Technical field
The present invention relates to a kind of automatic fire extinguishing system and interim drainage method thereof, particularly relate to a kind of automatic fire extinguishing system with interim drainage function and interim drainage method thereof that can effectively improve the preventing from mistake in jetting effect with interim drainage function.
Background technology
Fig. 1 is that the preventing from mistake in jetting automatic fire extinguishing system of prior art constitutes schematic diagram.As shown in Figure 1, the preventing from mistake in jetting automatic fire extinguishing system of this prior art mainly comprises water supply installation 1, drench valve 2, a plurality of preventing from mistake in jetting shower nozzle 5 and overflow valve 4; Wherein the delivery port of water supply installation 1 is connected by the water inlet of trunk line with drench valve 2, and the delivery port of drench valve 2 is connected with preventing from mistake in jetting shower nozzle 5 by branch pipe(tube), and overflow valve 4 then is connected in parallel on the branch pipe(tube) between drench valve 2 and the preventing from mistake in jetting shower nozzle 5.When breaking out of fire, water supply installation 1 starts, water supply installation 1 to the trunk line pressure between the drench valve 2 is raise, drench valve 2 is opened, drench valve 2 to the branch pipe(tube) pressure between the preventing from mistake in jetting shower nozzle 5 begins to raise, reach the closing presure of overflow valve 4 rapidly when this pressure after, overflow valve 4 cuts out, and preventing from mistake in jetting shower nozzle 5 is opened and implemented to put out a fire simultaneously.When water supply installation 1 does not start, and drench valve 2 is under artificial or pressure oscillation situation during unexpected the unlatching, overflow valve 4 often leaves, flow through the water of drench valve 2 to release, make the pressure in the branch pipe(tube) no longer continue to raise, at this moment, preventing from mistake in jetting shower nozzle 5 can not reach its opening pressure, prevents the generation of mistake spray thus.But, there is following point in the preventing from mistake in jetting automatic fire extinguishing system of this prior art: when excessive or pressurizer pressure is higher when the pipe network volume, even water supply installation 1 does not start, drench valve 2 is after unexpected unlatching the under artificial or the pressure oscillation situation, the flow that flows in the trunk line in the branch pipe(tube) can be above the vent flow of overflow valve 4, and the pressure in the branch pipe(tube) also will raise, thereby make the interior pressure of branch pipe(tube) surpass the opening pressure of preventing from mistake in jetting shower nozzle 5, the result causes the mistake spray, causes the reliability of system to reduce thus.
Summary of the invention
In order to address the above problem, the object of the invention is to provide a kind of automatic fire extinguishing system with interim drainage function and interim drainage method thereof that mistake is sprayed phenomenon of can avoiding occurring.
In order to achieve the above object, the automatic fire extinguishing system with interim drainage function provided by the invention mainly comprises water supply installation, drench valve, a plurality of preventing from mistake in jetting shower nozzle and overflow valve; Wherein the delivery port of water supply installation is connected with the water inlet of drench valve by trunk line, and the delivery port of drench valve is connected with the preventing from mistake in jetting shower nozzle by branch pipe(tube), and overflow valve then is connected in parallel on the branch pipe(tube) between drench valve and the preventing from mistake in jetting shower nozzle; Described automatic fire extinguishing system with interim drainage function also comprises and is connected in the temporary tapping device on the trunk line between water supply installation and the drench valve in parallel; Described temporary tapping device comprises the sensor that links to each other with trunk line, the discharging valve that links to each other with sensor and the time set that is arranged in parallel with sensor and discharging valve.
Interim drainage method with automatic fire extinguishing system of interim drainage function provided by the invention comprises the following step that carries out in order:
1) stage of the pressure of sensor sensing trunk line, changes in flow rate;
2) when the pressure in the trunk line or changes in flow rate reach certain value, sensor sends signal to discharging valve and opens discharging valve to begin interim pressure release, simultaneously stage of picking up counting of time set;
3) through behind the certain hour, time set sends signal and it is closed to discharging valve, thereby stops the stage of pressure release.
Automatic fire extinguishing system with interim drainage function provided by the invention mainly comprises water supply installation, drench valve, a plurality of preventing from mistake in jetting shower nozzle and overflow valve; Wherein the delivery port of water supply installation is connected with the water inlet of drench valve by trunk line, and the delivery port of drench valve is connected with the preventing from mistake in jetting shower nozzle by branch pipe(tube), and overflow valve then is connected in parallel on the branch pipe(tube) between drench valve and the preventing from mistake in jetting shower nozzle; Described automatic fire extinguishing system with interim drainage function also comprises and is connected in the temporary tapping device on the trunk line between water supply installation and the drench valve in parallel; Described temporary tapping device comprises the sensor that links to each other with trunk line, the discharging valve that links to each other with sensor and the metering device that links to each other with discharging valve.
Interim drainage method with automatic fire extinguishing system of interim drainage function provided by the invention comprises the following step that carries out in order:
1) stage of the pressure of sensor sensing trunk line, changes in flow rate;
2) when the pressure in the trunk line or changes in flow rate reached certain value, sensor sent signal to discharging valve and opens discharging valve to begin to quicken the stage of pressure release;
3) when the flow of metering device reaches certain value, stop to discharge water, thereby stop the stage of pressure release.
Described sensor is the warning pipeline of pressure gauge, flowmeter, water flow indicator or wet alarm valve, and discharging valve is the magnetic valve or the discharging valve that surges, and metering device is a water tank.
Automatic fire extinguishing system with interim drainage function provided by the invention is to have increased a temporary tapping device in the preventing from mistake in jetting automatic fire extinguishing system of prior art, and is therefore little to the change of original system, thereby improvement expenses is very low, the economic benefit height.In addition, because temporary tapping device can prevent from not start and drench valve is opened at water supply installation, and overflow valve pressure release amount is not enough or the mistake spray problem that occurs when reaching closing presure, so can improve the reliability of automatic fire extinguishing system.
Description of drawings
Fig. 1 is that the preventing from mistake in jetting automatic fire extinguishing system of prior art constitutes schematic diagram.
Fig. 2 constitutes schematic diagram for the automatic fire extinguishing system with interim drainage function provided by the invention.
Fig. 3 constitutes schematic diagram for temporary tapping device one embodiment in the automatic fire extinguishing system with interim drainage function provided by the invention.
Fig. 4 constitutes schematic diagram for another embodiment of temporary tapping device in the automatic fire extinguishing system with interim drainage function provided by the invention.
The specific embodiment
Below in conjunction with drawings and the specific embodiments automatic fire extinguishing system and the interim drainage method thereof with interim drainage function provided by the invention is elaborated.
Embodiment 1:
As Fig. 2, shown in Figure 3, the automatic fire extinguishing system with interim drainage function that present embodiment provides mainly comprises water supply installation 1, drench valve 2, a plurality of preventing from mistake in jetting shower nozzle 5 and overflow valve 4; Wherein the delivery port of water supply installation 1 is connected by the water inlet of trunk line with drench valve 2, and the delivery port of drench valve 2 is connected with preventing from mistake in jetting shower nozzle 5 by branch pipe(tube), and overflow valve 4 then is connected in parallel on the branch pipe(tube) between drench valve 2 and the preventing from mistake in jetting shower nozzle 5; Described automatic fire extinguishing system with interim drainage function also comprises and is connected in the temporary tapping device 3 on the trunk line between water supply installation 1 and the drench valve 2 in parallel; Described temporary tapping device 3 comprises the sensor 6 that links to each other with trunk line, the discharging valve 7 that links to each other with sensor 6 and the time set 8 that is arranged in parallel with sensor 6 and discharging valve 7.
The interim drainage method of the automatic fire extinguishing system with interim drainage function that present embodiment provides comprises the following step that carries out in order:
1) pressure of sensor 6 induction trunk lines, the stage of changes in flow rate;
2) when the pressure in the trunk line or changes in flow rate reach certain value, sensor 6 sends signal to discharging valve 7 and opens discharging valve 7 to begin interim pressure release, simultaneously stage of picking up counting of time set 8;
3) through behind the certain hour, time set 8 sends signal and it is closed to discharging valve 7, thereby stops the stage of pressure release.
Embodiment 2:
As Fig. 2, shown in Figure 4, the automatic fire extinguishing system with interim drainage function that present embodiment provides mainly comprises water supply installation 1, drench valve 2, a plurality of preventing from mistake in jetting shower nozzle 5 and overflow valve 4; Wherein the delivery port of water supply installation 1 is connected by the water inlet of trunk line with drench valve 2, and the delivery port of drench valve 2 is connected with preventing from mistake in jetting shower nozzle 5 by branch pipe(tube), and overflow valve 4 then is connected in parallel on the branch pipe(tube) between drench valve 2 and the preventing from mistake in jetting shower nozzle 5; Described automatic fire extinguishing system with interim drainage function also comprises and is connected in the temporary tapping device 3 on the trunk line between water supply installation 1 and the drench valve 2 in parallel; Described temporary tapping device 3 comprises the sensor 6 that links to each other with trunk line, the discharging valve 7 that links to each other with sensor 6 and the metering device 9 that links to each other with discharging valve 7.
The interim drainage method of the automatic fire extinguishing system with interim drainage function that present embodiment provides comprises the following step that carries out in order:
1) pressure of sensor 6 induction trunk lines, the stage of changes in flow rate;
2) when the pressure in the trunk line or changes in flow rate reached certain value, sensor 6 sent signal to discharging valve 7 and opens discharging valve 7 to begin the stage of interim pressure release;
3) when the flow of metering device 9 reaches certain value, stop to discharge water, thereby stop the stage of pressure release.
The warning pipeline that described sensor 6 can be pressure gauge, flowmeter, water flow indicator or wet alarm valve, discharging valve 7 can be the magnetic valve or the discharging valve that surges, and metering device 9 can be water tank or constant flow rate valve.
The automatic fire extinguishing system course of work with interim drainage function provided by the invention is as follows:
1, when excessive or pressurizer pressure is higher when the pipe network volume, even water supply installation 1 does not start, when drench valve 2 is opened because of artificial or pressure oscillation accident, water supply installation 1 to trunk line pressure between the drench valve 2 or flow will change this moment, sensor 6 in the temporary tapping device 3 can be sensed this variation immediately, sensor 6 sends this signal to discharging valve 7 and it is opened to begin to quicken pressure release, after waiting to quicken the pressure leak process end, close discharging valve 7, then by overflow valve 4 continue to release drench valve 2 remaining pressure and flow to the branch pipe(tube) between the preventing from mistake in jetting shower nozzle 5, with the appearance of preventing from mistake in jetting phenomenon.
2, when breaking out of fire, water supply installation 1 starts, this moment, water supply installation 1 to the trunk line internal pressure between the drench valve 2 raise, flow increases, sensor 6 in the temporary tapping device 3 can be sensed this variation immediately, sensor 6 sends this signal to discharging valve 7 and it is opened to begin to quicken pressure release, after the timing or the process that quantitatively discharges water, such as 10 seconds～1 minute, close discharging valve 7, to keep pipeline pressure, after treating that drench valve 2 to branch pipe(tube) internal pressure between the preventing from mistake in jetting shower nozzle 5 is elevated to closing presure above overflow valve 4, overflow valve 4 cuts out, when reaching the opening pressure of preventing from mistake in jetting shower nozzle 5 it is opened, this moment, automatic fire extinguishing system began normal fire-fighting work.
Automatic fire extinguishing system with interim drainage function provided by the invention can be used for various thin water smokes, water fog sprinkler, be the various froth fire extinguishing systems and the water smoke cooling system of basic medium with water.In addition, drench valve 2 can be a kind of in electric butterfly valve or the electric gate valve.
Claims (6)
1. the automatic fire extinguishing system with interim drainage function mainly comprises water supply installation (1), drench valve (2), a plurality of preventing from mistake in jetting shower nozzle (5) and overflow valve (4); Wherein the delivery port of water supply installation (1) is connected by the water inlet of trunk line with drench valve (2), the delivery port of drench valve (2) is connected with preventing from mistake in jetting shower nozzle (5) by branch pipe(tube), and overflow valve (4) then is connected in parallel on the branch pipe(tube) between drench valve (2) and the preventing from mistake in jetting shower nozzle (5); It is characterized in that: described automatic fire extinguishing system with interim drainage function also comprises and is connected in the temporary tapping device (3) on the trunk line between water supply installation (1) and the drench valve (2) in parallel; Described temporary tapping device (3) comprises the sensor (6) that links to each other with trunk line, the discharging valve (7) that links to each other with sensor (6) and the time set (8) that walks abreast and be provided with sensor (6) and discharging valve (7).
2. the automatic fire extinguishing system with interim drainage function according to claim 1, it is characterized in that: described sensor (6) is the warning pipeline of pressure gauge, flowmeter, water flow indicator or wet alarm valve, and discharging valve (7) is the magnetic valve or the discharging valve that surges.
3. interim drainage method with automatic fire extinguishing system of interim drainage function as claimed in claim 1, it is characterized in that: described interim drainage method comprises the following step that carries out in order:
1) pressure of sensor (6) induction trunk line, the stage of changes in flow rate;
2) when the pressure in the trunk line or flow reach certain value, sensor (6) sends signal to discharging valve (7) and opens discharging valve (7) to begin to quicken pressure release, simultaneously stage of picking up counting of time set (8);
3) through behind the certain hour, time set (8) sends signal and it is closed to discharging valve (7), thereby stops the stage of pressure release.
4. the automatic fire extinguishing system with interim drainage function mainly comprises water supply installation (1), drench valve (2), a plurality of preventing from mistake in jetting shower nozzle (5) and overflow valve (4); Wherein the delivery port of water supply installation (1) is connected by the water inlet of trunk line with drench valve (2), the delivery port of drench valve (2) is connected with preventing from mistake in jetting shower nozzle (5) by branch pipe(tube), and overflow valve (4) then is connected in parallel on the branch pipe(tube) between drench valve (2) and the preventing from mistake in jetting shower nozzle (5); It is characterized in that: described automatic fire extinguishing system with interim drainage function also comprises and is connected in the temporary tapping device (3) on the trunk line between water supply installation (1) and the drench valve (2) in parallel; Described temporary tapping device (3) comprises the sensor (6) that links to each other with trunk line, the discharging valve (7) that links to each other with sensor (6) and the metering device (9) that links to each other with discharging valve (7).
5. the automatic fire extinguishing system with interim drainage function according to claim 4, it is characterized in that: described sensor (6) is the warning pipeline of pressure gauge, flowmeter, water flow indicator or wet alarm valve, discharging valve (7) is the magnetic valve or the discharging valve that surges, and metering device (9) is water tank or constant flow rate valve.
6. interim drainage method with automatic fire extinguishing system of interim drainage function as claimed in claim 4, it is characterized in that: described interim drainage method comprises the following step that carries out in order:
1) pressure of sensor (6) induction trunk line, the stage of changes in flow rate;
2) when the pressure in the trunk line or flow reached certain value, sensor (6) sent signal discharging valve (7) to and opens discharging valve (7) to begin to quicken the stage of pressure release;
3) when the flow of metering device (9) reaches certain value, stop to discharge water, thereby stop the stage of pressure release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100596819A CN101125241A (en) | 2007-09-18 | 2007-09-18 | Automatic fire-extinguishing system with temporary drainage function and temporary drainage method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100596819A CN101125241A (en) | 2007-09-18 | 2007-09-18 | Automatic fire-extinguishing system with temporary drainage function and temporary drainage method |
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| CN101125241A true CN101125241A (en) | 2008-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100596819A Pending CN101125241A (en) | 2007-09-18 | 2007-09-18 | Automatic fire-extinguishing system with temporary drainage function and temporary drainage method |
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| CN (1) | CN101125241A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772875A (en) * | 2011-07-28 | 2012-11-14 | 黄玉明 | Novel automatic fire extinguishing system |
| CN105288913A (en) * | 2015-11-27 | 2016-02-03 | 江苏省绿岛管阀件有限公司 | Novel spraying pipe |
| CN105288917A (en) * | 2015-11-27 | 2016-02-03 | 江苏省绿岛管阀件有限公司 | Spraying device with energy-saving type spraying tube |
| CN105344048A (en) * | 2015-11-27 | 2016-02-24 | 江苏省绿岛管阀件有限公司 | Spraying pipe fitting with intelligent spraying pipe |
| CN106640848A (en) * | 2016-12-27 | 2017-05-10 | 中国重型机械研究院股份公司 | Buffer type automatic unloading device of power station |
| CN108187269A (en) * | 2017-12-27 | 2018-06-22 | 广州发展集团股份有限公司 | A kind of fire-fighting foams system suitable for oil depot and its start method |
| CN108568047A (en) * | 2018-06-26 | 2018-09-25 | 广东电网有限责任公司 | A kind of water spray extinguishing deluge valve pilot system |
| CN110215632A (en) * | 2019-06-05 | 2019-09-10 | 上海外高桥造船海洋工程有限公司 | Ship water mist sprinkling system |
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| CN1569285A (en) * | 2004-05-12 | 2005-01-26 | 华中科技大学 | Fixed high pressure water smoke fire-extinguishing system |
| CN1679982A (en) * | 2004-04-06 | 2005-10-12 | 首安工业消防股份有限公司 | Automatic jetting system with security device for preventing from mistake in jetting and freezing |
| CN101007202A (en) * | 2006-01-24 | 2007-08-01 | 首安工业消防股份有限公司 | Open-type automatic water spraying system with mis-spray preventive function |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1679982A (en) * | 2004-04-06 | 2005-10-12 | 首安工业消防股份有限公司 | Automatic jetting system with security device for preventing from mistake in jetting and freezing |
| CN1569285A (en) * | 2004-05-12 | 2005-01-26 | 华中科技大学 | Fixed high pressure water smoke fire-extinguishing system |
| CN101007202A (en) * | 2006-01-24 | 2007-08-01 | 首安工业消防股份有限公司 | Open-type automatic water spraying system with mis-spray preventive function |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772875A (en) * | 2011-07-28 | 2012-11-14 | 黄玉明 | Novel automatic fire extinguishing system |
| CN105288913A (en) * | 2015-11-27 | 2016-02-03 | 江苏省绿岛管阀件有限公司 | Novel spraying pipe |
| CN105288917A (en) * | 2015-11-27 | 2016-02-03 | 江苏省绿岛管阀件有限公司 | Spraying device with energy-saving type spraying tube |
| CN105344048A (en) * | 2015-11-27 | 2016-02-24 | 江苏省绿岛管阀件有限公司 | Spraying pipe fitting with intelligent spraying pipe |
| CN105344048B (en) * | 2015-11-27 | 2018-11-06 | 江苏省绿岛管阀件有限公司 | A kind of spray pipe fitting with intelligent spray tube |
| CN106640848A (en) * | 2016-12-27 | 2017-05-10 | 中国重型机械研究院股份公司 | Buffer type automatic unloading device of power station |
| CN108187269A (en) * | 2017-12-27 | 2018-06-22 | 广州发展集团股份有限公司 | A kind of fire-fighting foams system suitable for oil depot and its start method |
| CN108187269B (en) * | 2017-12-27 | 2021-07-16 | 广州发展集团股份有限公司 | Fire-fighting foam system suitable for oil depot and starting method thereof |
| CN108568047A (en) * | 2018-06-26 | 2018-09-25 | 广东电网有限责任公司 | A kind of water spray extinguishing deluge valve pilot system |
| CN110215632A (en) * | 2019-06-05 | 2019-09-10 | 上海外高桥造船海洋工程有限公司 | Ship water mist sprinkling system |
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