CN203389247U - Emergency water curtain system - Google Patents
Emergency water curtain system Download PDFInfo
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- CN203389247U CN203389247U CN201320444495.8U CN201320444495U CN203389247U CN 203389247 U CN203389247 U CN 203389247U CN 201320444495 U CN201320444495 U CN 201320444495U CN 203389247 U CN203389247 U CN 203389247U
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- water curtain
- curtain system
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Abstract
The utility model provides an emergency water curtain system. The emergency water curtain system comprises a water supply pipeline, a water curtain nozzle, a rapid switching valve, a combustible poisonous gas detector, a central control room and a logic-arithmetic unit, wherein the water curtain nozzle is fixedly arranged on a water supply pipeline branch pipe at the periphery of the water curtain system; the rapid switching valve is located on a water supply pipeline general pipe; the combustible poisonous gas detector is mounted on a connection part of potential leakage equipment mounted to be close to the water curtain system and a flange; the central control room is located at one side of a chemical device; the logic-arithmetic unit is integrated in a central control room integrated control system. The emergency water curtain system is good in protective effect; the emergency water curtain system for combustible poisonous gas leakage can be used for completely protecting and isolating the whole chemical device; the operation is stable and the emergency water curtain system can respond in time and can be operated continuously and stably for long time; the safety is high and the emergency water curtain system can respond rapidly when an emergency accident happens; the safety is improved greatly; the construction amount is amount and the installation is simple; the varieties of instruments and pipelines for forming the water curtain system are few; the installation is simple and the construction installation amount can be reduced effectively.
Description
Technical field
The utility model belongs to chemical emergency fail-safe device, relates to a kind of emergent water curtain system, especially a kind of emergent water curtain system of leaking for combustible and poisonous gas.
Background technology
Main back-fire relief, cooling, the buffer action of rising that water curtain system is comprised of drencher, deluge alarm valve group or temperature-sensitive drench valve, water supply and distributing pipe line, control valve and water flow alarm device etc., the automatic sprinkler system of raising device fire resistance.This system is usually used between the fire compartment or process units equipment in petrochemical enterprise.
Water curtain system is mainly used in carrying out the position of water curtain protection or fireproof partition; as be arranged between each fire district or equipment of device; stop fire spreading to expand, intercept the radiant heat that fire incident produces, inflammable, explosive, the pernicious gas leaking and liquid are risen and dredged and diluting effect.
Water curtain system does not possess the ability of direct fire extinguishing, is for keeping off the fire prevention system of cigarette back-fire relief and cooling isolation.Waterwall or multilayer cascade that fire separation water curtain system utilizes intensive sprinkling to form, the hole of shutoff fire compartment place, stops spreading of fire and flue gas.Protect the moisture film that cooling water curtain system utilizes water spray to form at body surface, control the temperature of fire compartment punishment parting, make the integrality of separator and thermal insulation exempt from fire destruction.
Tradition water curtain system is widely used in the fire-fighting system of construction of structures, and its application in chemical emergency accident have no relevant report.
Utility model content
The purpose of this utility model is to further investigate principle and the effect of water curtain system, structure to existing water curtain system is improved, a kind of water curtain system protection isolation performance that takes into full account is provided, expands water curtain system range of application, the emergent water curtain system while leaking for combustible and poisonous gas.
Emergent water curtain system of the present utility model, comprise water supply line, drencher, acceleration switching valve, combustible and poisonous gas detector, Central Control Room and logical-arithmetic unit, drencher is fixed on the water supply line arm of chemical plant installations periphery, acceleration switching valve is positioned at water supply line house steward, and combustible and poisonous gas detector is installed on equipment and the flange connections of potential leakage; Central Control Room is positioned at a side of chemical plant installations, meets the firebreak requirement that " code for fire protection design of petrochemical enterprises " (GB50160-2008) stipulated, and outside the scope of explosion-risk area, is positioned at the downwind side of the annual minimum frequency wind direction of Class A equipment; Logical-arithmetic unit is integrated in Central Control Room integrated control system; Central Control Room is processed water curtain system warning and interlocking signal and is carried out corresponding actions by logical-arithmetic unit.
Described emergent water curtain system also comprises on-site manual alarm switch and the manual alarm switch of Central Control Room, and on-site manual alarm switch is positioned at device scene, operation patrol officer is easy to contact position; The manual alarm switch of Central Control Room is arranged on the interior centralized Control operating desk of Central Control Room, and by Central Control Room, operating personnel are responsible for control.Scene and Central Control Room operating personnel, as found danger, can open water curtain system by on-site manual alarm switch or the chain acceleration switching valve of the manual alarm switch of Central Control Room respectively.
Wherein drencher is preferably fan-shapedly, plays separation gas effect; The drencher of installing on water supply line arm and arm forms water spray curtain, can large-area isolation combustible and poisonous gas.Chemical plant installations exists the possible floor of leakage that water spray curtain all should be set, size, arm size, drencher quantity and the flow of water spray curtain can be determined as the case may be, adjacent drencher spacing can be determined according to the drencher parameter of concrete selection (spray angle and effectively spray height), spacing range is adjustable between 0.6～7m, and generally conventional spacing is 1～3m.
Water supply line is carbon steel pipe, and line size is determined according to emergent water curtain system scale and water consumption.Further, water supply line house steward installs filter; Filter can prevent that it from stopping up drencher by particle in industry water and pipeline and other contaminant filters.
Described acceleration switching valve switch time≤5s, opens during emergency episode fast; Switch valve is opening when source of the gas and power failure, and assurance is answered and water curtain system can be worked all the time.When operating mode is normal, acceleration switching valve is in closed condition, and water curtain system is not worked, and during emergency work condition, combustible and poisonous gas detector detects combustible and poisonous gas and leaks and to reach setting value, the detector chain unlatching acceleration switching valve of reporting to the police, water curtain system work.
Further, combustible and poisonous gas detector is established Multi-stage alarming, and preferably two-stage is reported to the police, and any one detector is only reported to the police after reaching one-level, secondary alarming value, not chain unlatching water curtain system; Any two detectors reach after secondary alarming value, the water curtain chain unlatching of uniting; Chemical plant installations shuts down simultaneously.
The water source of this emergent water curtain system can the industry water house steward of You Quan factory supply water, and also can adopt independent water pump to supply water for concrete operating mode.During for assurance emergency episode, emergent water curtain system starts in time, and water curtain water source must remain band pressure condition.
Further, water source also can be replaced with industry water or alkali lye or acid solution etc. according to the difference of the character of combustible and poisonous gas.
The emergent water curtain system of the utility model is particularly useful for combustible and poisonous gas soluble in water, as ammonia, HCl, phosgene etc.
Advantage and the good effect that the utlity model has are:
1. protection effect is good.The emergent water curtain system that combustible and poisonous gas leaks can be protected isolation by whole chemical plant installations completely, makes the combustible and poisonous gas cannot rapid diffusion in the short time, thus protection periphery personnel and device security, for evacuating personnel, rescue and accident treatment win the quality time.
2. stable.The emergent water curtain system of the utility model is comprised of reliability high combustible and poisonous gas detector, acceleration switching valve and pipeline, drencher, can guarantee to answer and water curtain system response in time long-time operation continually and steadily.
3. safe.Mode chain by combustible and poisonous gas detector and manual alarm switch combination is opened and is answered and water curtain system, and water curtain system can respond rapidly when emergency episode, and security improves greatly.
4. construction volume is little, installation is simple.The instrument and the pipeline kind that form the emergent water curtain system of the utility model are few, install simply, can effectively reduce construction and installation amount.
Accompanying drawing explanation
Fig. 1 is emergent water curtain system structural representation of the present utility model;
In figure:
1, water supply line 2, acceleration switching valve 3, drencher
4, combustible and poisonous gas detector 5, on-site manual alarm switch 6, the manual alarm switch of Central Control Room
7, logical-arithmetic unit 8, Central Control Room 9, industrial water source
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, the drawings and specific embodiments do not form restriction of the present utility model.
A kind of emergent water curtain system of the present utility model shown in Fig. 1, comprises industrial water source 9, water supply line 1, drencher 3, acceleration switching valve 2, combustible and poisonous gas detector 4, on-site manual alarm switch 5, the manual alarm switch 6 of Central Control Room, logical-arithmetic unit 7, Central Control Room 8 etc.Drencher 3 is fixed on the water supply line arm of water curtain system periphery, and acceleration switching valve 2 is positioned at water supply line 1 house steward, and combustible and poisonous gas detector 4 is installed near equipment and the flange connections of potential leakage water curtain system; Central Control Room is positioned at a side of chemical plant installations, meets the firebreak requirement that " code for fire protection design of petrochemical enterprises " (GB50160-2008) stipulated, and outside the scope of explosion-risk area, is positioned at the downwind side of the annual minimum frequency wind direction of Class A equipment; Logical-arithmetic unit 7 is integrated in Central Control Room integrated control system; Central Control Room 8 is processed water curtain system warning and interlocking signal and is carried out corresponding actions by logical-arithmetic unit 7.
Adopt the emergent water curtain system operation method of operation of leaking for combustible and poisonous gas described in the utility model as follows:
When chemical plant installations normally moves, acceleration switching valve is in normal off status, and emergent water curtain system is not worked.Acceleration switching valve upstream industries water remains band pressure condition.While there is urgent leakage accident in device; in atmosphere, combustible and poisonous gas concentration arrives and reports to the police or chain setting value; detector is by rational chain control program; chain acceleration switching valve is opened emergent water curtain system; intercept or absorb combustible and poisonous gas, protection periphery personnel and device security, for evacuating personnel, rescue and accident treatment win the quality time.If staff finds dangerous situation, combustible and poisonous gas detector is not reported to the police or during chain unlatching water curtain system, scene or Central Control Room operating personnel can by the chain unlatching of manual alarm switch should and water curtain system.Dangerous situation can reset water curtain system is quit work once getting rid of.The waste water that water curtain system work produces (may also have acid or other chemical mediators) is then delivered to wastewater treatment equipment by the gutter remittance collecting-tank of device periphery and is processed.
Embodiment 1
M2(dimethyldichlorosilane) hydrolysis device is the important ring in organosilicon process upstream production process.This device, by the high-purity M2 from rectification cell and saturated salt acid reaction, produces HCl(hydrogen chloride when M2 is hydrolyzed to siloxanes in course of reaction) gas delivers to chloromethanes synthesizer use.Owing to there being the existence of HCl in M2 hydrolysis device production process always, therefore for preventing that forming acid mist after HCl from leaking produces harm to environment, personnel and equipment, must arrange emergent water curtain system at whole M2 hydrolysis device periphery.Arranging of water curtain system can, by whole device and external environment condition isolation, at short notice by the HCl GAS ABSORPTION leaking out, thereby drop to minimum by harm and loss.
Certain M2 hydrolysis device is 32m * 18m rectangular region.According to M2 hydrolysis device apparatus arrangement situation and position that HCl leakage accident may occur, need respectively layers 2 and 3 plane at device frame respectively to arrange 1 week to spray water curtain; In addition, according to practical production experience HCl scrubbing tower, exist and leak possibility, therefore centered by this top of tower, within the scope of 6m * 5m, also need to arrange 1 week water spray curtain.
It is that the industry water house steward of resource of water supply ，You Quan factory supplies water that whole emergent water curtain system adopts industry water.Water spray intensity is got 1.0L/sm, and within 3 weeks, water spray curtain total length is about 222m, and therefore emergent water curtain system industry water consumption is that 222L/s(is 800m3/h).While occurring for assurance accident, the whole device of the adjacent shower nozzle ejection water curtain overlapped encirclement of energy also absorbs HCl gas to greatest extent to be prevented from overflowing, and it is that 1L/s, spray angle are 120 ° that drencher adopts flow, the fan-shaped drencher that effectively jetting height is 2m.The spacing of adjacent two shower nozzles is made as 1m, and whole water curtain system need arrange 222 shower nozzles altogether.
The emergent water curtain system of M2 device continues water spraying time and is defined as 1h.When such duration can guarantee accident, intercept or absorb combustible and poisonous gas, protection periphery personnel and device security, making that Field Force can withdraw in time, operating personnel have the sufficient reaction time to take necessary emergency protection measure.
Industry water house steward is provided with acceleration switching valve, and switch valve switch time is 5s.When M2 device normally moves, acceleration switching valve is in normal off status, and emergent water curtain is not worked.Acceleration switching valve upstream industries water remains band pressure condition.When emergency episode occurs, when in atmosphere, HCl gas concentration reaches the alarming value of the HCl detector that is arranged at each potential leakage point or linkage value, detector is by rational chain control program, and chain acceleration switching valve is opened the water curtain system of meeting an urgent need.
Open in time when making emergent water curtain system accident, reduce maloperation possibility, its chain control program is set as follows:
1. all HCl detectors are established two-stage warning, and one-level setting value is 5ppmv, and secondary setting value is 25ppmv;
2. any one detector is only reported to the police after reaching one-level, secondary alarming value, not chain unlatching water curtain;
3. any two detectors reach after secondary alarming value, the chain unlatching of water curtain; M2 device stops charging simultaneously;
Every layer of platform and Central Control Room that M2 device arranges water spray curtain arrange a manual alarm switch, and as emergency episode, scene or Central Control Room operating personnel can manually opened water curtain systems.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (8)
1. an emergent water curtain system, it is characterized in that: comprise water supply line, drencher, acceleration switching valve, combustible and poisonous gas detector, Central Control Room and logical-arithmetic unit, drencher is fixed on the water supply line arm of chemical plant installations periphery, acceleration switching valve is positioned at water supply line house steward, and combustible and poisonous gas detector is installed on equipment and the flange connections of potential leakage; Central Control Room is positioned at a side of chemical plant installations; Logical-arithmetic unit is integrated in Central Control Room integrated control system.
2. emergent water curtain system according to claim 1, it is characterized in that: described emergent water curtain system also comprises on-site manual alarm switch and the manual alarm switch of Central Control Room, on-site manual alarm switch is positioned at device scene, operation patrol officer is easy to contact position; The manual alarm switch of Central Control Room is arranged on the interior centralized Control operating desk of Central Control Room.
3. emergent water curtain system according to claim 1, is characterized in that: described drencher is fan-shaped.
4. emergent water curtain system according to claim 1, is characterized in that: the spacing range of described drencher is adjustable between 0.6～7m.
5. emergent water curtain system according to claim 1, is characterized in that: the spacing of described drencher is 1～3m.
6. emergent water curtain system according to claim 1, is characterized in that: the house steward of described water supply line installs filter.
7. emergent water curtain system according to claim 1, is characterized in that: described combustible and poisonous gas detector is established Multi-stage alarming.
8. emergent water curtain system according to claim 1, is characterized in that: the water source of described emergent water curtain system is industry water, alkali lye or acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444495.8U CN203389247U (en) | 2013-07-24 | 2013-07-24 | Emergency water curtain system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444495.8U CN203389247U (en) | 2013-07-24 | 2013-07-24 | Emergency water curtain system |
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| CN203389247U true CN203389247U (en) | 2014-01-15 |
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| CN201320444495.8U Expired - Lifetime CN203389247U (en) | 2013-07-24 | 2013-07-24 | Emergency water curtain system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208984A (en) * | 2014-09-23 | 2014-12-17 | 赛鼎工程有限公司 | Method for treating phosgene leakage |
| CN104297424A (en) * | 2014-09-25 | 2015-01-21 | 中国石油化工股份有限公司 | LNG leakage water curtain inhibition experiment method |
| CN107080913A (en) * | 2017-06-14 | 2017-08-22 | 大唐环境产业集团股份有限公司 | A kind of hydrolysis of urea spraying system of fire fighting |
| CN109035109A (en) * | 2018-07-17 | 2018-12-18 | 江苏安泰安全技术有限公司 | A kind of acidity toxic gas leakage emergent treatment system |
| CN115372541A (en) * | 2022-10-21 | 2022-11-22 | 合肥工业大学 | An experimental device for the study of ammonia jet flame |
-
2013
- 2013-07-24 CN CN201320444495.8U patent/CN203389247U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208984A (en) * | 2014-09-23 | 2014-12-17 | 赛鼎工程有限公司 | Method for treating phosgene leakage |
| CN104297424A (en) * | 2014-09-25 | 2015-01-21 | 中国石油化工股份有限公司 | LNG leakage water curtain inhibition experiment method |
| CN104297424B (en) * | 2014-09-25 | 2016-09-07 | 中国石油化工股份有限公司青岛安全工程研究院 | LNG leaks water curtain Inhibition test method |
| CN107080913A (en) * | 2017-06-14 | 2017-08-22 | 大唐环境产业集团股份有限公司 | A kind of hydrolysis of urea spraying system of fire fighting |
| CN109035109A (en) * | 2018-07-17 | 2018-12-18 | 江苏安泰安全技术有限公司 | A kind of acidity toxic gas leakage emergent treatment system |
| CN115372541A (en) * | 2022-10-21 | 2022-11-22 | 合肥工业大学 | An experimental device for the study of ammonia jet flame |
| CN115372541B (en) * | 2022-10-21 | 2023-02-10 | 合肥工业大学 | An experimental device for the study of ammonia jet flame |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |