1. Insufficient configuration of fire extinguisher Before the commissioning of the new project, the automatic fire protection facilities were configured and operated well, but the fire extinguisher was not properly configured. The main reason is:
(1) In the overall firefighting design, the design of the automatic firefighting system was emphasized, and the design of the fire extinguisher was neglected, resulting in the omission of the design of the fire extinguisher, and failure to provide a reasonable allocation basis;
(2) Although there is a configuration design, due to unclear ownership of the configuration, the fire extinguisher failed to be properly placed;
(3) Although the configuration was carried out according to the design, the configuration quality is not high, the selection is wrong, the quantity is insufficient, the position is not accurate, and some are even used fire extinguishers.
We can suggest that the new fire extinguisher configuration can be controlled in three steps:
(1) The design unit shall strictly carry out firefighting design in strict accordance with the relevant fire design code, and include the fire extinguisher design configuration in the firefighting design content. On the one hand, the integrity of the design plan shall be ensured. On the other hand, the allocation funds shall be included in the plan, not because the funds are not In place to affect the fire extinguisher configuration;
(2) Clearly configure the responsible units. It is advisable to use construction units as appropriate. Dispose fire extinguishers in a one-time or step-by-step project schedule.
(3) Establish a control mechanism between the responsible party and the receiver, configure the production unit as the fire extinguisher, and check the fire extinguisher design and requirements before commissioning.
2. Unreasonable configuration of fire extinguisher The configuration of the fire extinguisher is rule-based. The "Code for the Design of Extinguisher Configurations for Buildings" (GBJ140-90) has done a good job in designing and disposing the danger level, fire extinguishing level, type selection, configuration reference and configuration requirements of fire extinguishers. Clear and detailed provisions; In this regard, as the fire extinguisher configuration design and management departments should be the first to learn and control, and as a unified standard for the configuration and management of fire extinguishers to guide the configuration and management of fire extinguishers. However, there are three kinds of irrational phenomena in the allocation and management of daily fire extinguishers.
(1) The fire extinguisher has poor self protection. Fire extinguishers due to improper configuration, management and use will not only affect the use of fire extinguishing effect, but also can easily cause explosion accidents. For example, at the power construction site or power equipment site, fire extinguishers are placed under wind, sun, and rain for a long time, which can easily cause rust and aging of fire extinguisher cylinders, reduce the pressure capacity, or dampen the fire extinguishing agents, and reduce the quality of fire extinguishing agents. Affect the safe and effective use of fire extinguishers. In this regard, I suggest that the fire extinguisher should be equipped with packing, hooks, racks, brackets and other rain and sun protection measures, fire extinguishers should be set away from the production of high temperature equipment.
(2) There are too many fire extinguishers in a single configuration. According to the "Code for the design of fire extinguishers in buildings", the correct setting method for fire extinguishers is that each configuration point should not be less than two, and not more than five, and the configuration points should be set according to the protection distance of different fire extinguishers. However, some enterprise fire extinguisher configurations are too concentrated. The number of fire extinguishers deployed at a configuration site is far higher than the five configuration standards. The more they mistakenly believe that the more they can meet the need to save fires.
(3) Improper fire extinguisher selection. The types of fires that enterprises have emerged are generally electrical equipment fires, precision instrument fires, flammable gas fires, oils, and general solid fires. At present, commonly used fire extinguishers can be classified into the following five types according to the fire extinguishing agents used: water type, foam type, dry powder type , haloalkane, carbon dioxide type. Because different extinguishing agents have different fire extinguishing principles, the applied objects and the effects of their use are also very different. For example, ABC and BC dry powder fire extinguishing agents, ABC class can be used for solid, liquid and gas tristate fires, and BC class can only be used for liquid and gas fires. Some enterprise fire extinguisher configurations do not distinguish between fire types and cannot be configured for “diseasesâ€, thus laying a hidden danger for effective fire fighting.
3. Failure to properly implement the fire extinguisher scrapping regulations In order to ensure the safety and effectiveness of fire extinguishers, it is necessary to properly perform the inspection and maintenance and scrapping of fire extinguishers. In response, the Ministry of Public Security established the public safety industry standard for "Maintenance and scrapping of fire extinguishers" in 1995. As a mandatory industry standard, the fire extinguisher inspections, maintenance, and scrapping methods and deadlines have been clearly defined. Take the portable 1211 fire extinguisher as an example: After the expiry of 5 years (from the factory date), the hydrostatic test must be performed every 2 years; after 10 years of use (distance from the factory date), it must be scrapped. However, some fire control personnel are unclear about the standard. First, the hydrostatic pressure test is regarded as an annual inspection, regardless of the age of use; the second is to focus only on the annual inspection, but can not be scrapped in accordance with the useful life, resulting in extended service of fire extinguishers. Fire extinguisher quality cannot be guaranteed effectively.
4. The management of fire extinguishers with blind spot fire extinguishers has many contents. The main blind spots are:
(1) In the placement management, due to work and other reasons, the fire extinguisher can not be returned to the position in time, which not only causes inconvenience to management, but also affects the normal scope of protection and use;
(2) No fire extinguishing equipment files are established. The base number of fire extinguishing equipment is unclear, causing inconvenience for maintenance and scrapping;
(3) The use of fire extinguishers is not widely used in training. It is only required to use the fire extinguisher in an unconventional manner.
We recommend that the fire extinguisher should be archived and managed, files should be accurately mapped, records of fire extinguisher quantity, configuration, and maintenance inspection time should be made. The responsible area manager should be identified in the form of a fixed layout, indicating the use of fire extinguishers allocated at each location. Non-fire bans are required.
The proper disposition and management of fire extinguishers involves the success or failure of the initial fire fighting. If companies are to achieve fire safety, they must attach great importance to the configuration and management of fire extinguishers.
ATEX Approved Coriolis Mass Flow Meter
Sealand is a trustworthy manufacturer of Mass Flow Meter Coriolis, Mass Flowmeter Coriolis, Flow Meter Coriolis and Meter Coriolis, ATEX, CE & IECEx approved.
The flow meter model covers from DN03 to DN150, and bigger models are being developed. Main specification is as follows.
Model No.
Diameter
(mm)
Max. flow rate
(kg/min)
MWP.
(MPa)
Accuracy grade
(%)
Zero stability
(kg/h)
CG-03
03
6
4
0.1/ 0.2/ 0.5
0.012
CG-06
06
18
4
0.1/ 0.2/ 0.5
0.04
CG-15
15
50
25
0.1/ 0.2/ 0.5
0.12
CNG-20
20
120
25
0.1/ 0.2/ 0.5
0.36
CG-25
25
200
4
0.1/ 0.2/ 0.5
0.62
CG-40
40
500
4
0.1/ 0.2/ 0.5
1.60
CG-50
50
1000
4
0.1/ 0.2/ 0.5
2.38
CG-80
80
3000
4
0.1/ 0.2/ 0.5
7.05
CG-100
100
3600
4
0.1/ 0.2/ 0.5
12.00
CG-150
150
8000
4
0.1/ 0.2/ 0.5
50.00
Mass Flow Meter Coriolis, Mass Flowmeter Coriolis, Flow Meter Coriolis, Meter Coriolis
Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeter.com