Method for collecting and storing fire accident wastewater of chemical workshop

A storage method and waste liquid collection technology, which is applied in waterway systems, sewage discharge, water supply devices, etc., can solve the problems of collection and storage methods that have not been seen in relevant reports, and achieve the effects of saving reconstruction costs, protecting the environment, and low construction costs

Inactive Publication Date: 2015-05-27
XIAMEN SUNRUI SHIP COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The question is: how to deal with the environmental pollution caused by the fire accident according to the existing conditions of the chemical workshop? What kind of collection and storage method is more reasonable for the fire accident wastewater in chemical workshops? There is no relevant report about the collection and storage method in this respect

Method used

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  • Method for collecting and storing fire accident wastewater of chemical workshop

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Effect test

Embodiment 1

[0030] Embodiment 1: Chemical workshop covers an area of ​​S=1500m 2 , the daily transfer of chemicals in the workshop weighs about W=20 tons and is converted to N=20 m 3 , the volume of the storage tank is ≥20m 3 According to the GB50016-2006 standard, it is assumed that when a fire occurs, the total water output of the indoor fire nozzle and the outdoor fire nozzle within 3.0 hours of the fire accident fire fighting time is L=486m 3 , Xiamen local maximum rainfall within 3.0h is calculated as 40mm, then the estimated volume of rainwater E=S×T=60m 3 , the maximum estimated amount of fire accident wastewater=N+L+E= 566m 3 .

[0031] According to H=M / S= 37.8cm, the chemical workshop can form a 567m 3 Concentrated capacity pool, plus ≥2m 3 sump and 20m 3 The storage tank has a total capacity of 589m for collecting and storing fire accident wastewater 3 , enough to meet the collection and storage of the chemical workshop fire accident wastewater.

Embodiment 2

[0032] Embodiment 2: Chemical workshop covers an area of ​​S=2000m 2 , the daily transfer of chemicals in the workshop weighs about W=30 tons and is converted to N=30 m 3 , the volume of the storage tank is ≥30m 3 According to the GB50016-2006 standard, it is assumed that when a fire occurs, the total water output of the indoor fire nozzle and the outdoor fire nozzle within 3.0 hours of fire fighting time is L=540m 3 , Xiamen local maximum rainfall within 3.0h is calculated as 40mm, then the estimated volume of rainwater E=S×T=80m 3 , the maximum estimated amount of fire accident wastewater=N+L+E=650m 3 .

[0033] According to H=M / S= 32.5cm, the chemical workshop can form a 650m 3 Concentrated capacity pool, plus ≥2m 3sump and 30m 3 The storage tanks have a total capacity of 682m for collecting and storing fire accident wastewater 3 , enough to meet the collection and storage of the chemical workshop fire accident wastewater.

Embodiment 3

[0034] Embodiment 3: chemical workshop floor area S=3500m 2 , the daily transfer of chemicals in the workshop weighs about W=40 tons and is converted to N=40 m 3 , the volume of the storage tank is ≥40m 3 According to the GB50016-2006 standard, it is assumed that when a fire occurs, the total water output of the indoor fire nozzle and the outdoor fire nozzle within 3.0 hours of fire fighting time is L=540m 3 , Xiamen local maximum rainfall within 3.0h is calculated as 40mm, then the estimated volume of rainwater E=S×T=140m 3 , the maximum estimated amount of fire accident wastewater=N+L+E=720m 3 .

[0035] According to H=M / S= 20.6cm, the chemical workshop can form a 721m 3 Concentrated capacity pool, plus ≥2m 3 sump and 40m 3 The storage tanks have a total capacity of 763m for collecting and storing fire accident wastewater 3 , enough to meet the collection and storage of the chemical workshop fire accident wastewater.

[0036] The method of the present invention is si...

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Abstract

The invention discloses a method for collecting and storing fire accident wastewater of a chemical workshop. A storage tank (9) is arranged at the exterior of a chemical workshop, wherein a liquid collection pit (4) is arranged between the storage tank and the chemical workshop; a liquid level meter (10) is arranged at one side end of the storage tank; a horizontal liquid outlet (11) is formed in the bottom of the storage tank; an anti-explosion submersible pump (6) is arranged at the bottom of the liquid collection pit (4); a hose (8) led out from the upper end of the storage tank is connected with the anti-explosion submersible pump; the anti-explosion submersible pump is switched on or off by a control cabinet (7); a flotation ball valve (5) is arranged in the liquid collection pit; a pit cover is additionally arranged in the liquid collection pit; a waste liquid collection pipeline (2) is arranged in the chemical workshop and is led into the liquid collection pit; a control valve (3) is arranged in the waste liquid collection pipeline; an H-height surrounding dam (1) is arranged at a gate of the chemical workshop and is used for forming a concentrated accommodation tank of the fire accident wastewater in the chemical workshop; the H-height surrounding dam, and the volume of the liquid collection pit and the volume of the storage tank can be used for effectively collecting and storing the fire accident wastewater, thereby preventing the fire accident wastewater from being discharged and generating pollution.

Description

technical field [0001] The invention belongs to the technical field of chemical enterprise accident wastewater collection, in particular to a method for collecting and storing fire accident wastewater in chemical workshops. Background technique [0002] The chemical workshops that were built and put into operation in the south of my country such as Xiamen in the early days, due to the limited space, the shape of the factory area, and the complex underground pipe network, caused frequent environmental pollution incidents caused by fire accidents. Therefore, the environmental pollution of the area caused by the discharge of fire accident wastewater was prevented It has become an important task in emergency rescue of accidents, and the perfect fire accident wastewater collection and disposal plan has attracted more and more attention. [0003] Usually the floor area of ​​the chemical workshop and the total weight of the daily transfer chemicals are given. The chemical workshop i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F1/00E03F5/10E03F5/22E03F3/04
CPCE03B1/041E03F1/00E03F3/04E03F5/10E03F5/22
Inventor 王红锋李彦文于海涛
Owner XIAMEN SUNRUI SHIP COATING
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