Basic Requirements and Characteristics of Product Export Project for Gas Fire Extinguishing System

By Zhu Jinwu and Zhou Tiexiang

(BeijingLeader Haixin Gas Fire Extinguishing System & Equipment Co., Ltd., in Beijing, Telephone: 13910793712)

I. Abstract

Gas fire-extinguishing system is one of four traditional fixed fire extinguishing systems (water spray, gas, foam, and dry powder) and the application range is extensive. Gas fire-extinguishing system has the following characteristics: First, this system has good insulativity and can extinguish electrical fire; Second, the fire extinguishing agent is clean and without residue during and after fire extinguishing; Third, it is fast in fire extinguishing. Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. It is to export gas fire-extinguishing system product to foreign countries, install in the protection area of gas fire-extinguishing system, implement fire prevention and fire-extinguishing automatic protection, and achieve the fire protection of foreign key project or important equipment. This requires gas fire-extinguishing system product and packaging-case to be designed with collision-resistant, anti-vibrating, and high-and low-temperature resistant; the product shall be safe and reliable, good sealing property, and stable in quality, and the installation and construction shall be simple and fast.

II. Key Words

Gas Fire-extinguishing System, Safety, Sealing, Packaging, Vibration Resistance, and High/low-temperature Resistance.

III. Basic Requirements and Characteristics of Gas Fire Extinguishing System Product Export Project

I. Safe and Reliable Product

Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. The parts and components used must be safe and reliable. Leader Haixin sets about from the safety of user for everything and can guarantee the safety and reliability of the gas fire-extinguishing system export project in transportation, installation, and use.

(1) Leader Haixin pressure container steel cylinder uses the product manufactured by well-known manufacturer, with the pressure container certificate issued by the State. The wall thickness and weight of pressure container steel cylinder fully both comply with the requirements of the design drawing and the Specification. The pressure container steel cylinder with the wall thickness which is not up to standard, light weight, non-conformance, and low cost that will never be used.

(2) The safety valve of the cylinder valve on Leader Haixin pressure container steel cylinder uses the safety diaphragm manufactured by the professional company Shanghai Huali Safety Valve Co., Ltd. The safety performance is guaranteed. Most other manufacturers design and process safety valves themselves.

(3) Leader Haixin Gas fire-extinguishing system export is also called as gas fire extinguishing equipment export, and called as gas fire-extinguishing export. The head valves outlet of all fire extinguishing agent in the gas fire-extinguishing system of Leader Haixin are installed with safety protective cap, enabling the product to protect the personal safety of operator in the series processes including production, transportation, loading and unloading, installation, debugging, etc., even if the cylinder of fire extinguishing agent is mistakenly started.

(4) The cylinder head valve on Leader Haixin pressure container steel cylinder uses HPb59-1(Y) cold drawing brass rod forging forming, making the material of cylinder head valve in linear rhyolitic structure and increasing the density. This not only increases the tensile strength, but also enhances the resilience. The cylinder head valve will not be fractured after impact. Leader Haixin never uses low-cost of cylinder head valve of casting stainless iron and carbon steel material.

(5) Strict control is applied over the incoming and production of gas fire extinguishing parts and components and the delivery inspection of finished products, making users really feel comfortable and at ease in use.

2. Sealing and Quality Stability

Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. The parts and components used have good sealing performance and stable quality. Leader Haixin guarantees the good sealing and quality stability of the gas fire-extinguishing system product export project from the following aspects:

(1) The cylinder head valve material of the fire-extinguishing storage cylinder in support of the gas fire-extinguishing system manufactured by Leader Haixin is cold drawing brass rod forging, which can be opened flexibly and reliably and corrosion-resistance even if stored for long time. The shape of the crystal particle of the internal microscopic structure of the brass cylinder head valve after forging is tiny and the density is increased. The sealing performance of the cylinder head valve of fire extinguishing agent is long-standing and reliable. This system overcomes the solidification temperature, shrinkage, and impurity of the cast at varied degrees existed in the cylinder head valve processed with low-cost cast stainless steel material; the problems of some tiny heat crack, looseness, air holes, etc. easily occurred internally and on surface, and the significant defects of cylinder head valve in sealing performance, etc.

(2) Leader Haixin Gas fire-extinguishing system export is also called as gas fire extinguishing equipment export, and called as gas fire-extinguishing export. The head valve of fire extinguishing agent adopted by Leader Haixin in gas fire-extinguishing system has experienced many times of significant innovative design and improvement tests. The head valve is rational in structure, overcomes heat expansion and cold contraction and the defect of instable sealing caused by the size of the pre-stressing force of the parts and components assembled. The connection between the sealing port of head valve and all parts and components adopt radial and end face dual sealing structure. The sealing material uses corrosion-resistance and high-temperature resistant material, enabling the sealing role double protected. The above innovation and improvement fill up domestic blank.

(3) Different from the filling process of the gas fire extinguishing agents of different domestic manufacturers, the unique filling process of the fire extinguishing agent of Leader Haixin has greatly improved the disposable filling percentage of pass of the fire extinguishing agent storage cylinder, made the achievement that there has been no leakage/rework quality problem of fire extinguishing agent for six years without exception. This has improved the reputation of Leader Haixin, reduced the maintenance cost of user, and improved the safety guarantee of user.

(4) Leader Haixin strictly controls the fire extinguishing agent head valve and fire extinguishing agent storage cylinder sealing test. The storage cylinder of extinguishing agent after filling is integrally immersed into fresh water for air tight test for no less than two times. Today, most gas manufacturers do not conduct air tight test. In this way, once steel cylinder leaks, the sealing quality is difficult to guarantee.

(5) Leader Haixin Gas fire-extinguishing system export is also called as gas fire extinguishing equipment export, and called as gas fire-extinguishing export. Reasonably structured and reliable pressure meter switch has been designed and installed in front of the pressure meter of Leader Haixin gas fire-extinguishing system. It is easy to operate, more reliable in sealing, and superior to similar gas manufacturers in structure design.

(6) One end of Leader Haixin is connected with the outlet of the head valve of fire extinguishing agent storage cylinder and another end is connected with the one-way valve of the liquid flow on collecting main, which plays the role of deflect-to-connect, transfer fire extinguishing agent, and reducing the vibration and impact caused during gas release. There are two structures for the high-pressure connection hose: One is that both ends of the hose are steel structure connector; in which, one connector is a 90° elbow. Flexible hose is in the middle of straight pipe. The regulating variable of the high-pressure connection hose in this structure is very small in height and direction. The processing accuracy of the frame height of the fire extinguishing storage cylinder of cold weld assembly is very high and the connection is difficult and strenuous. Improper processing may lead to poor sealing performance and high vibration and leakage of fire extinguishing agent during blowing out. Another structure is that the both ends of high-pressure connection hose are short-distance stainless steel connector. The length of the flexible hose can be easily regulated in the direction of X and Y axes. It is characterized by quick connection, labor-saving, better connection sealing, and smaller vibration of the entire gas fire extinguishing system/equipment. Leader Haixin adopts the high-pressure connection hose in the latter structure.

(7) In the startup pipeline of the gas fire-extinguishing system with pipe network, Leader Haixin has designed and installed low-pressure safe leakage valve to prevent the gas startup device from false startup of the system caused by slow leakage, thus effectively guaranteeing the quality of the product.

3. Vibration Resistance and High/low Temperature Resistance

Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. All parts and components of the gas fire-extinguishing system should have good vibration resistance and high/low temperature resistance. Such parts and components can endure the long-distance three-dimensional transportation (by sea, land, and air) and will not cause equipment leakage or false startup due to the stormy waves, bump, high/low-temperature weather conditions, etc. during transportation. All parts and components in the export project of Leader Haixin gas fire extinguishing system product adopt vibration-resistant design. In particular, the container valve of fire extinguishing agent storage cylinder is in the structure of dual sealing horizontal differential pressure. This container valve has two air chambers. A piston valve clack is installed in the valve body. It is automatically sealed by the pressure in the valve body. Special startup cylinder and thimble parts shall be installed. The container valve of fire extinguishing agent storage cylinder cannot be started until the seal membrane of the startup air chamber of the container valve is punctured. There is no start handle on the external surface of this valve. The important characteristics of the container valve in this structure are collision resistance, vibration resistances, and +70℃ high temperature and -30℃ low temperature resistance. Thus, the fire extinguishing agent is guaranteed free from leakage and false startup resulting from vibration and high/low temperature variation.

4. Packaging

Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. This sets forth more rigid requirement on the packaging of the product. All parts and components of gas fire-extinguishing system shall be packed with packaging-case. The packaging shall at least satisfy the following requirements:

(1) The packaging case adopts export packaging case. It is also called as export wood packaging box, export wood box, plywood case, non-fumigation packing box, etc. It is absolutely prohibited to use ordinary wood packaging box, which cannot be cleared by the customs.

(2) The shipping mark on packaging box shall include the following contents:

a. Acronym or abbreviation of the name of consignee or buyer;

b. Reference number, such as waybill number, order number or invoice number;

c. Name of destination;

d. Number of pieces.

(3) Damp-proof treatment shall be conducted on packaging box. Moisture sealer shall be bound in the internal wall of packaging box and a certain amount of drying agent shall be placed.

(4) Collision treatment shall be conducted on the packaging box. Collision plastic foam board shall be placed in the internal wall of packaging box. All parts and components in the box shall be put in order. Parts and components shall be separated and stuffed up with plastic foam board. Each fire extinguishing cylinder group shall be fixed on the bottom of packaging box with 2~3 packaging belts to prevent them from rolling and collision during transportation.

(5) Product packing list shall be placed in each packaging box, indicating the name of part and component in the box, specification and model, quantity, etc.

(6) Tray shall be provided at the bottom of each packaging box for the convenience of loading and transshipment.

(7) For over-length parts and components which cannot be packed with packaging box, such as steel pipe, they shall be packed by way of stacking. Stacking should be regular and neat. Tray shall be provided for the bottom for the convenience of handling equipment such as forklift to transship. Steel belt shall be used for packaging and fixing at the interval of approximately2m, to prevent the steep pipes from falling apart.

Leader Haixin has accumulated rich experience in the packaging of product for the export project of gas fire extinguishing system product. The product has been well exported toCape Verde,Angola, and other regions.

5. Simple and Quick Installation without Processing and Manufacturing on Site

Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. Since the product is installed in foreign country, processing conditions are unavailable on site. All parts and components must be processed before delivery. Secondary processing is not allowed during site assembly. The startup pipeline between each startup device and fire extinguishing agent storage cylinder in Leader Haixin gas fire extinguishing system is designed with high-cost stainless steel metal hose, instead of the low-cost DN4~6mmred copper tube adopted by most domestic manufacturers. If DN4~6mmred copper tube is used, the startup pipeline shall be processed with special tools according to the actual structure on site by cutting, bending, reaming, etc. So far, only Leader Haixin takes the lead in the use of stainless steel hose for the purpose of "all for the sake of users". This approach increases the cost of gas manufacturer, but avoids the trouble of site processing for copper tube, realizes the purpose of no field processing for all parts and components of the system, makes the installation of the system much simple, convenient, and fast. This can improve the installation efficiency by more than 4 times and greatly reduce the field installation cost on site.

6. Field installation can be conducted according to materials and drawings without the field guidance of manufacturer's representative.

Gas fire-extinguishing system product export project is also called as the export of gas fire-extinguishing system, gas fire extinguishing equipment export, and called as gas fire-extinguishing export. The installation is conducted in foreign country. Field installation can be realized according to materials and drawings while manufacturer is unnecessary to send technician to provide field guidance, thus saving installation time and the cost of personnel abroad. Detailed system installation drawing and cylinder group equipment installation drawing have been drawn according to each project for the export project of Leader Haixin gas fire extinguishing system product. Before delivery, the equipment of cylinder group has been actually installed in factory. The installation process has been taken into pictures and video for archiving. Professional installation slides have been produced according to the assembly sequence. Those materials and drawings are randomly provided to users at the time of delivery, really realizing the “automatic” installation or “building block” assembly of all parts and components of the gas fire extinguishing system. During actual installation, it is unnecessary to dispatch personnel for to provide field guidance. Even if there is any problem, the problem may be solved via telephone communication.

Submission Deadline: December 7, 2013

Revision Date: December 9, 2013

Address of Author: Beijing Leader Haixin Co., Ltd., No.17, Rongjing East Street, Beijing Economic and Technical Development Zone, Beijing

Post Code: 100176

Telephone: (010)69508262

Note: The copyright of this article and its contents rested with Zhu Jinwu. No unit or individual is allowed to arbitrarily hotlink and/or reprint. In case of reproduction or citation, please indicate the name of the author and the name of the unit. Offenders will be investigated for legal responsibility.