A:the product explain
The flameproof electricity point of contact manometer press the GB3836.183 《 explosion environment uses an in general use request of flameproof electricity equipments 》separate to explode an electricity equipments"d" with the GB3836.283 《 explosion environment with the flameproof electricity equipments 》 of the relevant provision and related standard carry on a design, and specify through the nation of the examination organization examine and approve of the drawing and the technique document carry on a manufacturing.
The flameproof category of the gauge separates to explode a B class T4 setses for ‖ , its marking Exd ‖ BT4.
The gauge is feat to use to measure to crystallize not and solidify not in have the place of the explosion danger of the explosion mixture or various have no explosion to lie the quality pressure.
Gauge through with have flameproof function of correspond or adopt the electricity spare part(such as after electric appliances and the contact machine etc.) kit usage of correspond the safe measure, then ability to the purpose that is control the system realization to control and send letter(report to the police) automatically.
Two:main technique index sign:
Accuracy grade:1.6
The mark degree scope:0~0.16,0~0.25,0~0.4,0-~0.6,0~1.0,0~2.5,0~4,0~6,0~10,0~16,0~25,0~40,0~60,-0.1~0.06,-0.1~0.15,-0.1~0.3,-0.1~0.5,-0.1~0.9,-0.1~1.5,-0.1~2.4MPa.
Control a way:Up,descend a limit to go slowly a point of contact switch
The tallest work electric voltage:The DC 220 Vs or AC 380 Vs
Touch a head power:10VA
The work position:Perpendicular install
Use an environment condition:-10-50 ℃s, the relative humidity is no bigger than 80%, and the explosion mixture should belong to the ‖ B class T4 setses following, the work vibration and is measure nasty play pulsation of lie the quality and should have no influence to the dependable action that the gauge touches a head.
The temperature influence:Show the value is no bigger than 0.4%/10 ℃s, setting to order to be no bigger than 0.6%/10 ℃s(usage the temperature deviate 20 ±s 5 ℃s)
Insulate strength:The 50 Hz sine alternate current 2000 Vs lasts for a minute
Weight:6kg
Three:flameproof electricity point of contact the manometer choose a type the form type number to say clear B YTX-150 YTX-B 150 Bs in general use type flameproof electricity point of contact the manometer YTWX-B the 150 Bs bear the heat type a flameproof electricity point of contact the manometer YTXC-B 150 B 磁 help type flameproof electricity point of contact the manometer YTOX-B the 150 Bs forbid oil(the oxygen use) a type a flameproof electricity point of contact a manometer YAX-B 150 B the ammonia use a type a flameproof electricity point of contact a manometer YML-B 150 B thread conjunction diaphragm type flameproof electricity point of contact manometer YMF-B 150 B method the 蘭 link diaphragm a type flameproof electricity point of contact manometer YEX-B 150 B film box type flameproof electricity point of contact manometer YTF-B 150 Bs whole stainless steel type flameproof electricity point of contact manometer YTX-B 150 B the dish pack flameproof electricity point of contact manometer YTZ-B 150 B Far EasTone Telecommunications Co., Ltd type flameproof electricity point of contact manometer accuracy grade AN accuracy ≤ 1.5 B accuracy ≤ 2.510-60 Mpa ～ 100 Mpa measure scope 20-10 Kpa ～ 600 Kpa 3-0.1-0 Mpa 4-0.1-2.4 Mpa L1 M 20*1.5 conjunction thread L21/2 NPT L3 special conjunction thread conjunction pattern Ⅰ the path is toward the limitless T path take a side gauge features backward 150150 pressure surface 160160 pressure surface WEN DU4 T1 - 20 ℃～ 450 ℃ T2 - 20 ℃～ 300 ℃ T3 - 20 ℃～ 200 ℃ T4 - 20 ℃～ 135 ℃ T5 - 20 ℃～ 100 ℃ T6 - 20 ℃～ 85 ℃ manifestation way D1 needle manifestation D2
Four:structure principle:
Gauge from separate to explode outer shell,measure system,give or get an electric shock a point of contact set,regulate to equip and the line box etc. constitute.
The gauge separates to explode outer shell to have to separate to explode function goodly, so to in the normal work process because of the influence of the spark or the electricity 弧 , in addition to bear the explosion air mixture of the hull body inner part at once causing an explosion output explosion pressure, and can obstruct availably to produce from here of the thermal energy spreads outwardly and smoothly, but can in the hull body inner part along separate to explode coalescence noodles of the small blind side spreads slow-movingly and outwardly.At this time, the moment temperature that spreads to the hull body exterior has already been as low as the ignition point temperature the following of the explosion air mixture, past will not cause to spread to explode.
The work principle of the gauge is according to the flexibility of the examination component(measure spring coil within system tube) to transform, through a machine spread to move to make it arouse the electricity point of contact set in of touch a head creation correspond of action(shut to match or break to open) with make to control to press system in of the electric circuit can connect or break to open, carrying out an automatic control to report to the police thus indicate with the spot of purpose. |
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