Multifunctional positive pressure explosion prevention control spliced cabinet
A positive pressure explosion-proof, multi-functional technology, applied in the direction of electric fluid pressure control, casing/cabinet/drawer parts, cooling/ventilation/heating transformation, etc., can solve high cost, inconvenient wiring and maintenance, Increased safety and explosion-proof cabinets are difficult to combine cabinets to achieve the effect of meeting the use and reducing the cost of the cabinet
Active Publication Date: 2014-04-30
BAOJI PETROLEUM MASCH CO LTD +2
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Problems solved by technology
[0004] The purpose of this invention is to provide a multi-functional positive pressure explosion-proof control splicing cabinet, which solves the problems of difficulty in combining cabinets with increased safety and flameproof cabinets, high cost, and inconvenient wiring and maintenance.
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[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] refer to figure 1 , the positive pressure explosion-proof control splicing cabinet of the present invention, figure 1 The embodiment in the above provides three sets of cabinet units 36 spliced in sequence, and each cabinet unit 36 is provided with a manual exhaust valve 34 and an automatic exhaust valve 35, which can be expanded into multiple sets of cabinets as required in actual use. Unit 36.
[0029] refer to figure 2 , in order to facilitate the communication between each cabinet unit 36, a wire hole 37 is opened on the side plate of each cabinet unit 36, and the cable routing between adjacent cabinet units 36 is realized through the wire hole 37 , saving a large number of glands or connectors; the wire hole 37 is also equipped with a blocking plate, when the cabinet unit 36 is not spliced on the outer side of the cabi...
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The invention discloses a multifunctional positive pressure explosion prevention control spliced cabinet. The multifunctional positive pressure explosion prevention control spliced cabinet comprises cabinet body units which are sequentially spliced. Meanwhile, a set including a positive pressure explosion prevention controller, a hand-operated vent valve, an automatic vent valve, pressure difference switches and a sensor set is arranged in each cabinet body unit. The pressure difference switches in each cabinet body unit include the 400 Pa high pressure difference switch, the 150 Pa medium pressure difference switch and the 70 Pa low pressure difference switch. Each sensor set includes an H2S gas sensor, a combustible gas sensor and a smoke sensor. Wire passing holes are formed in side plates between the cabinet body units. The cabinet can be freely spliced according to the requirements so that the cabinet can be upgraded and extended, and therefore the cost of the cabinet can be reduced; meanwhile, the positive pressure explosion prevention method is adopted for the cabinet, stable and reliable running of the positive pressure system is ensured, and the multifunctional positive pressure explosion prevention control spliced cabinet can be used in dangerous areas in drilling work.
Description
technical field [0001] The invention belongs to the technical field of safety protection in oil drilling dangerous areas, and in particular relates to a multifunctional positive pressure explosion-proof control splicing cabinet. Background technique [0002] At present, the degree of automation of oil drilling rigs is gradually improving, and a large number of controllers are used to realize the intelligent control of drilling equipment. For this reason, a large number of cabinets are required to install various control stations, frequency converters and other electrical equipment. Since oil drilling operations are in an explosion-proof gas environment for a long time, various electrical components can easily generate sparks and cause explosions when they are working, which is a potential safety hazard. [0003] The current explosion-proof cabinets generally use the cabinets with increased safety and flameproof enclosures. The entire cabinet enclosure is relatively thick, ve...
Claims
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IPC IPC(8): H05K5/02H05K7/20G05D16/20
Inventor 张鹏飞张国山杨双业宋涛
Owner BAOJI PETROLEUM MASCH CO LTD