Online degassing and degreasing device and degassing and degreasing method for outer surface of barrel
A technology for the outer surface of a cylinder and a degreasing device, which is applied to cleaning methods and utensils, chemical instruments and methods, and cleaning hollow objects, etc., can solve the problems of reduced vacuum degree of gas cylinders, inability to clean, and reduced thermal insulation effect, etc., and the realization time is short. , The effect of high degree of automation and convenient operation
Pending Publication Date: 2020-07-17
CHINA UNITED ENG
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Problems solved by technology
At present, the vacuuming of LNG low-temperature insulated gas cylinders produced in the city generally adopts two methods of internal heating and internal and external heating for degassing and degreasing. Both methods use high-temperature hot gas to purge the metal surface, which can effectively solve the problem of metal There is a problem with the amount of air released on the surface, but it takes a long time and cannot be cleaned. After a long time, the vacuum degree of the cylinder decreases and the insulation effect decreases
Method used
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.
[0028] see Figure 1-Figure 5 , The embodiment of the present invention includes a combustion system 1 , a jacking rotation mechanism 2 , a conveying mechanism 3 , a combustion system moving mechanism 4 , a combustion system translation mechanism 5 and a frame 6 .
[0029] The combustion system 1 burns through the mixture of gas and air, and the flame temperature reaches 800°C to 1000°C, which can effectively fully burn the moisture and oil stains adsorbed on the surface of the cylinder to achieve the degassing and degreasing effect.
[0030] The combustion system 1 includes a burner 111, an ignition needle 112, a gas pipeline 113, a Venturi mixer 114, a gas solenoid valve 115, a gas pressure switch 116, a pressure ...
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The invention provides an online degassing and degreasing device and a degassing and degreasing method for an outer surface of a barrel. The online degassing and degreasing device is convenient to operate, high in automation degree, short in time and thorough in cleaning. A fuel gas inlet pipeline and an air inlet pipeline are connected with a Venturi mixer; a fuel gas electromagnetic valve is mounted on the fuel gas inlet pipeline; a combustion fan is connected with the air inlet pipeline; the fuel gas pipeline is connected with the Venturi mixer; an ignition needle is mounted on a combustor;a conveying mechanism is mounted on a rack; a jacking mechanism support is mounted on the rack and connected with an air cylinder; a transmission mechanism is connected with rollers; a combustion system moving mechanism and a combustion system translation mechanism are arranged on the side edge of the conveying mechanism; a first guide rail is mounted on the rack; a first fixed support is mountedon a first sliding block, and the first sliding block is mounted on a first guide rail; a second guide rail is mounted on the rack; a second fixed rack is mounted on a second sliding block, and the second sliding block is mounted on a second guide rail; and a translation power mechanism is mounted on the rack and is connected with the second fixed rack.
Description
technical field [0001] The invention relates to an online degassing and degreasing device and a degreasing method for the outer surface of a cylinder, which are used for degassing and degreasing the outer surface of the cylinder of an LNG low-temperature heat-insulating gas cylinder. Background technique [0002] LNG cryogenic insulated gas cylinder has been widely used at home and abroad as a pressure vessel for cryogenic liquid storage. The structure of the pressure vessel is divided into an outer shell and an inner cylinder. The interlayer between the outer shell and the inner cylinder is a high-vacuum interlayer, and the outer surface of the inner cylinder of the interlayer is covered with heat-insulating materials. In order to obtain the high vacuum of the interlayer, the interlayer must be evacuated, and there are many reasons that affect the vacuum degree of the interlayer, such as gas and oil stains adsorbed on the metal surface, and gas adsorbed on the surface of th...
Claims
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IPC IPC(8): B08B7/00B08B9/20B08B9/44B08B13/00
CPCB08B7/0071B08B9/20B08B9/44B08B13/00
Inventor 章宇庆林瑞进周炳水
Owner CHINA UNITED ENG