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| No.8142559
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Information Name: | Shanxi Supply QHF-2 type with a fixed set value air bag release valve |
Published: | 2010-12-23 |
Validity: | 180 |
Specifications: | According to the model, specifications ranging from |
Quantity: | 0.00 |
Price Description: | Power Conference yuan / month |
Detailed Product Description: | QHF-2-type air bag with the set value is a relief valve in public Technology Development Co., Ltd. Zhengzhou patented products. Seller Geng Lin, telephone Setting value of the wind with a release valve package is an important coal mine production safety inspection program. QHF-2-type setting value of the wind with the release valve package Origin: Henan Zhengzhou QHF-2-type setting value with the release valve air bag material: stainless steel QHF-2 type with a set value use of air bag release valve: The relief valve used for ground or underground air compressor systems, air bag installed in the outlet pipe is on the air flow direction, the caliber of the relief valve of not less than The diameter of the duct, the release of the pressure air compressor should be 1.2-1.4 times the maximum working pressure, from a security role. QHF-2-type air bag with a set value type relief valve: QHF-50, QHF-65, QHF-80, QHF-100, QHF-125, QHF-150, QHF-200, QHF-250 a number of models can be freedom of choice as needed. QHF-2-type setting value of the wind with the release valve works package: ● The relief valve from the cylinder, piston set, shield and other components. ● cylinder from the left and right flanges and welded cylinder group. ● To enhance the wear resistance and prevent rust, hard chrome plated cylinder. ● piston group consists of card board, 0 ring, piston, rod and other components. ● Piston loaded from the left side of the cylinder and the piston through the card board fixed in the cylinder group, make it impossible to move around. ● protective cover from the flange, simplified and made welding door. ● When the release valve relief, the protective cover to prevent the piston flying out of assault, from a security role. ● When the air compressor system to work, the system pressure of ≤ 0.785 (8kg/cm2), in the pressure relief valves work properly. ● When the air bag due to carbon deposition for some causes of fire or gas explosions in air bag, the system temperature, pressure transient rise ● When the pressure rose to 1.03 ± 0.049MPa (10.5 ± 0.5kg/cm2) pulled off immediately when the lever, release pressure relief valve, ● The air bag and the line of high gas rapidly released from the surface to relieve a waterfall bomb blast, to avoid the role of the accident. QHF-2-type setting value with the release valve air bag maintenance: ◆ normal working hours, the air compressor system pressure should not exceed 7.84 × 105pa (8kg/cm2) ◆ always check the relief valve cylinder, piston, and the pipe flange connection, there should be no leakage phenomenon, the fastening parts should not be loose. ◆ someone should be fixed regular inspection and maintenance. ◆ release valve normal working hours, once a month extension of small rod, corrosion situation. ◆ Check the O-ring seal flexibility and situation. Replaced once every six months on the principle of lever. ◆ Under special circumstances, such as relief or significant extension of thin corroded should be replaced. With "Coal Mine Safety Regulations" Four hundred and thirty seventh 条 air compressors must have a pressure gauge and safety valve. Gauges must be regularly calibrated. Safety valve and pressure regulator must be reliable action, safety valve pressure shall not exceed 1.1 times the rated pressure. Use air compressor oil protection equipment must be installed off the oil or oil off the signal display device. Air compressor cold water protection device to be fitted with cargo without water signal display device. Four hundred and thirty eighth 条 single-cylinder air compressor discharge temperature should not exceed 190 ℃, cylinder shall not exceed 160 ℃. Temperature protection device must be installed in the over-temperature can automatically cut the power. Air compressor suction port must be set to filter. Air compressors must use a flash point not less than 215 ℃ compressor oil. Four hundred and thirty ninth 条 air compressor air bag on the ground should be located in the shade outdoors, in the pit should be located where the air flow. In the underground, compressors and wind package should be fixed in the two tunnel were set indoors. Air bag should be maintained at a temperature below 120 ℃, and with over-temperature protection device, in the over-temperature can be automatically cut off power and alarm. Air bag must have a reliable safety valve action and release valve, and check the hole. Must periodically clear the oily air bag. After a new installation or repair of subcontracting, the application of 1.5 times the working pressure of the air compressor to do pressure test. Export pipeline in the wind package must be installed relief valve, relief valve diameter not less than the diameter of the wind pipe, the release of pressure should be the maximum working pressure of the air compressor 1.25 to 1.4 times. |
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Copyright © GuangDong ICP No. 10089450, Science and Technology Development Co., Ltd. in Zhengzhou in public All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 5258 visitor
Copyright © GuangDong ICP No. 10089450, Science and Technology Development Co., Ltd. in Zhengzhou in public All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility