What are the advantages of a suspended dry powder fire extinguishing unit?

What are the advantages of suspended dry powder fire extinguishing device? Stored pressure suspended ABC ultra-fine dry powder fire extinguishing device products are the most used in the design of the pipeline corridor project, due to the lowest cost, simple structure, so what are the advantages of suspended fire extinguishing device?

Installation mode:

There are storage pressure hanging installation, from the top down jet model, there are FZX-ACT4, 5, 6, 7, 7, 8, 10, 12, 14/1.4Kg eight specifications, is the domestic specifications of the most manufacturers, the majority of manufacturers do not have the specifications of 12, 14.

      There are storage pressure wall mounted installation, horizontal injection, there are two kinds of FZB-ACF5, 10/1.4Kg, is a wind turbine nacelle special type of products, can be used in pipe corridors, suitable for horizontal narrow pipe corridor structure. General manufacturers do not have such structure.

Product specification:

Can be used with a variety of structural types, size and space of the pipeline corridor project supporting, in line with the latest pipeline corridor adjacent to the two suspended fire extinguishing device optimal spacing 4 ~ 8m design scheme concept. The total project cost ratio is the lowest and most economical. If 12, 14Kg two specifications instead of 8, 10Kg, respectively, can reduce the total cost and maintenance and management costs by more than 30%. Lida design should focus on 10, 12, 14Kg three specifications and the best spacing 4 ~ 8m design programme concept. Will significantly reduce competition.

The sprinkler head valve on the suspended fire extinguishing device adopts NPTF precision dry (no packing), high strength, high sealing conical pipe threads and low-temperature-resistant double sealing structure, so that the threads are screwed together and each tooth top and bottom of the teeth can be tightly closed without gaps, and the product and structure have been patented. Resistant to -40℃～-45℃ low temperature, good high and low temperature sealing, long storage warranty period and low daily maintenance cost. At present, most manufacturers use M30x1.5 thread, rubber O-ring material is generally used ordinary rubber or nitrile rubber, low temperature resistance -10 ℃.

Starting device:

Suspended fire extinguishing device sprinkler head glass ball electric starter device has three structures:

The first is an electric starter (electric detonator detonator head) and glass ball with insulating tape all wrapped together, in order to prevent loosening over time and fall, tied with nylon ties, the glass ball is completely wrapped in insulating tape will be lost in the sense of the temperature automatic start function and the nozzle plugs sometimes do not fall down, due to the wrapping of the material has to support the nozzle plugs, there may be a major defects in the above mentioned. ga61-2010 national standards for products. Article 5.4.6 of the regulations, in order to prevent false start of the electric explosion starter, the glass ball should be used on the double electric explosion starter components, most manufacturers have installed only one electric explosion starter, because the glass ball is too small, no position space. Many government tender documents and design institutes have prohibited the use of this structure.

The second is to use the "S" type heating resistor wire form and parcels, the glass ball with "Ω" shaped structure package, the glass ball more than 70% of the volume is wrapped, it will be possible to extend the glass ball temperature sensing automatic start-up time, many of the corridor bidding documents and the Design Institute requirements Glass ball parcel less than 50% of the volume. As the parcel has a certain height and strength, the nozzle plug sometimes can not completely fall down, will seriously affect the spray performance.

The third is the "O" type heating resistance wire closely set in the diameter Ф5mm glass ball, resistance wire on the outer diameter and then set a gap is very small length of 6mm, brittle quartz tube, so that the resistance wire insulation insulation, reduce heat loss, can be a few seconds within the rapid start. (Glass ball length 15mm) parcel length of not more than 40%, no impact on the glass ball temperature sensing automatic start function. Quartz tube is a thin-walled brittle glass tube, coupled with a 9mm gap with the nozzle plug gap, start, under the impact of the nozzle plug, the quartz tube rupture quickly, the nozzle plug will fall 100 per cent. Lida Haixin suspended fire extinguishing device is non-electrical explosion type without power to set the temperature of the glass ball and power resistance wire heating automatically, manually three kinds of starting devices, the device has applied for a number of patents to protect.