30results about How to "High explosion-proof grade" patented technology

The invention relates to a process and complete-set apparatus for treatment of tail gases generated during steam blowing. The apparatus comprises a condensation heat exchanger, a three-phase separator, a mixing tank, a vacuum pump, a compression and condensation unit, a gas-liquid separator, membrane assembly, a heat exchanger and a low-temperature catalytic oxidation reactor. The tail gases generated during steam blowing are firstly cooled in the condensation heat exchanger, then the cooled tail gases enter the three-phase separator, and primary separation is performed in the three-phase separator to obtain dirt oil, waste water and waste gases, the separated dirt oil is stored in an oil storage tank, the separated waste water is treated in a sewage pipe network, and the separated waste gases are recycled and treated in a process device integrating a compression and condensation process, a membrane separation process and a low-temperature catalytic oxidation process. According to the invention, when the apparatus is used, higher-value organic materials in the tail gases can be recycled, and the emission indexes of the tail gases can be satisfied, and meanwhile, no electric heating systems are used, so that the explosion-proof grade of the apparatus is improved, and skid-mounted mobile design is adopted, so that requirements of starting the apparatus near petrochemical enterprise equipment can be satisfied, and on-site processing of the tail gases is realized.

The invention relates to an oil unloading device vehicle for a railway oil tank and an oil transportation method thereof. A vehicle chassis system is fixedly connected with a platform assembly; the platform assembly is provided with a control box, an electrical control box, an oil return extending-retracting oil tank, an oil pump, a loading arm assembly, a loading arm box and an oil passage control valve; the loading arm assembly comprises a set of railway oil transportation loading arm assembly, a set of vehicle oil transportation loading arm assembly, and one to two sets of bottom filling oil pipe assemblies, wherein the railway oil transportation loading arm assembly is arranged in the an oil absorption loading arm box of the railway oil tank, and the vehicle oil transportation loadingarm assembly is arranged in a vehicle oil transportation loading arm box; one side of the vehicle chassis system is provided with the control box; a flow meter, a dry self-sealing joint and the oil passage control valve are arranged in the control box; and the other side of the chassis is provided with the oil passage control valve. The vehicle can complete functions of vacuum pump priming, unloading oil transportation, bottom oil suction, emptying and the like, has the advantages of simple structure, convenient operation, convenient observation of the meter, reasonable layout, high measuringprecision, higher explosive-proof grade and the like and is mainly used to suck the flue oil in the railway oil tank and transport the flue oil to the oil delivery vehicle.

The invention provides a vacuum generator which is characterized in that air around a vacuum generation sleeve is taken away to generate vacuum by adopting compressed air as power and utilizing a Bernoulli principle. The vacuum generator comprises the vacuum generation sleeve, a sleeve shell and a vacuum generator base. The compressed air enters from a compressed air inlet of the base and drives the air in the vacuum generation sleeve to flow in the axial direction, so that the air pressure outside the sleeve is larger than that inside the sleeve; and the air outside flows into the sleeve through a through hole on the side wall of the sleeve and then flows out from a compressed air outlet of the sleeve (or the sleeve shell). The process is simply described as follows: the air outside is taken away by the compressed air in the vacuum generation sleeve to generate the vacuum.

The invention discloses a positive pressure inflatable explosion-proof interlocking device for an industrial chromatograph, comprising a shell. The shell is internally provided with a locking three-way valve, the upstream of the locking three-way valve is provided with a pressure stabilizing valve and a flow meter, the downstream of the locking three-way valve is provided with a reset valve, the downstream of the reset valve is provided with a door interlock, the downstream of the door interlock is provided with a time delay valve, the downstream of the time delay valve is provided with a state switching valve, and the downstream of the state switching valve is provided with a gas / electricity relay, an electrical control plate and a pressure transmitter. The positive pressure inflatable explosion-proof interlocking device for the industrial chromatograph is installed in the positive pressure inflatable explosion-proof cavity, to monitor and detect the positive pressure state of the electrical control part of the industrial chromatograph, and to continuously blow non-combustible gas to prevent the explosive gas into this area. Only when the electrical control part is fully purged, the power supply is provided to the chromatograph. The automatic completion is achieved, the explosion-proof grade is high, and the positive pressure inflatable explosion-proof interlocking device is especially suitable for the miniaturization of equipment.

The invention relates to a high-effective organic waste gas recovery processing method and complete equipment. The complete equipment includes: an organic waste gas collection apparatus, a gas storage tank, a buffer tank, a primary membrane unit, an active carbon adsorption unit, a vacuum pump, a gas-liquid separation tank, a compression condensing unit, a secondary membrane unit, a low temperature catalytic oxidizing reactor, and a tubular heat exchanger. Through the two-stage membrane as a core technology, advantages that a membrane process is high in efficient, is continuous, has high recover rate and high safety and is suitable for high-concentration organic waste gas are achieved, thus recovering the recoverable components in the waste gas; in addition, with the low temperature catalytic oxidization technology, an advantage of deep processing thereof is achieved, so that a problem of accumulation of light-hydrocarbon substances is overcome. The processing method and complete equipment not only high-effectively recover valuable organic substances, but also can perform deep processing to the organic waste gas with satisfaction of strict requirements on safety production in petrochemical enterprises. Through the deep processing to the organic waste gas, discharged organic waste gas can reach national emission standards.

The invention discloses an explosion-proof and safety-increased type composite explosion-proof motor with a current transformer. An annular junction box support is welded on the base of an explosion-proof motor body. The annular junction box support is provided with an explosion-proof cover plate. The explosion-proof cover plate is connected with a safety-increased type current transformer junction box via a terminal box base. The explosion-proof cover plate is provided with an explosion-proof cable joint. The terminal box base, the explosion-proof cover plate, the explosion-proof cable joint and the base together form an explosion-proof housing of the motor. In this way, through arranging the current transformer as a measurement element on the explosion-proof motor body for realizing the differential protection, the interphase short-circuit protection function is effectively realized. Therefore, the security level of the explosion-proof motor is effectively realized. The motor is simple in structure, convenient to install and maintain, good in security and reliability and high in explosion-proof level. The technical scheme of the invention can be effectively applied to the explosion-proof motor with the power thereof larger than 2000 kW. The cost of the motor is greatly reduced.

The invention relates to a novel explosion-proof lamp which comprises a heat dissipation baseboard, a driving power supply and a lamp panel provided with a plurality of LEDs (light-emitting diodes). The novel explosion-proof lamp provided by the invention is characterized in that a frame defined by four section bars is located on the front side of the heat dissipation baseboard; the lamp panel isarranged in the frame, and the lamp panel and the heat dissipation baseboard are fixed into a whole; and organic glass is covered on the frame. By utilizing the technical scheme, the novel explosion-proof lamp has the advantages of high explosion-proof level, strong commonality, low cost, compact structure, convenience in installation and the like.

An oil-water interface measuring instrument based on photoelectric sensing, comprising a photoelectric sensor measuring head, a tape measure and a tape measure data reading and display mechanism; Take the display mechanism to record the rotation speed of the tape measure through the encoder, and then calculate and display the value of the tape measure rotation by the single chip computer; a measuring circuit is arranged between the cylindrical shell and the hollow glass tube in the photoelectric sensor measuring head; in the measuring circuit, the light emission There is one light-emitting tube in the light-receiving area, and two receiving tubes in the light-receiving area, forming a photoelectric sensor group; when the sensor group is placed at the oil-water interface, the light will be refracted and scattered, resulting in the light of the two light-receiving tubes will change, thus Determine if there is an interface change. The invention realizes the high-precision detection of the oil-water interface and the automatic reading of the interface distance, and has the characteristics of high measurement accuracy, automatic reading and simple operation compared with the traditional equipment.