Heating and cooling combined external opening-closing type asphalt valve

Abstract

The invention provides a heating and cooling combined external opening-closing type asphalt valve. The heating and cooling combined external opening-closing type asphalt valve is provided with a valvebody and an outlet end flange; the valve body is provided with a vertical valve body cavity; an opening is formed at the top end of the vertical valve body cavity; the outlet end flange flows out obliquely downward depending on fluid gravity; a flange plugging cap for plugging a fluid outlet is mounted at the outlet end flange; an electric heating tray electrically connected with a power socket is mounted at a sealing valve seat at the bottom end of the valve body; a coolant cavity and an outermost thermal insulation layer are arranged at the outer side wall of the valve body; the coolant cavity communicates with a water entering pipe joint and a water return pipe joint; cooling equipment and the valve body are simultaneously and fixedly mounted at a platform frame body; and a lifting adjustment device is mounted at the bottom of the valve body. Valve closing is realized by adopting water cooling solidification in addition to cutting and plugging a fluid passage by the flange pluggingcap; valve opening is realized by heating and smelting to dismount the flange plugging cap; and the problems of a traditional built-in valve that when an asphalt valve is used, the resistance of a valve opening-closing mechanism is high, the probabilities of damage and embolization are high, the maintenance is not easy, the life is short, and the machining and manufacturing are difficult are solved.

Description

technical field [0001] The invention belongs to the technical field of asphalt valves, and in particular relates to a heating and cooling combined external opening and closing type asphalt valve. Background technique [0002] At present, asphalt is solid at normal temperature, but it is a fluid with high viscosity at higher temperature, and the viscosity of asphalt is 230 billion times that of water. Under the existing technology, the problems of using conventional valves to transport asphalt are: 1. The asphalt valve modified by conventional valves is still a built-in opening and closing mechanism; the opening and closing of the valve is usually realized by cylinder or screw drive; affected by the high viscosity of asphalt ;The resistance of the valve opening and closing mechanism is large; it is easy to be damaged after long-term use; Difficult to clean and maintain; Difficulties affecting the normal use of the valve; 2. Built-in valve opening and closing mechanism; compl...

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a heating and cooling combined with external opening and closing type asphalt valve. When the valve needs to be opened, the valve body is preheated by an electric heating plate to melt the asphalt; and the flange cover is opened to melt the asphalt The bitumen of the fluid flows out by the gravity of the fluid itself; realize the opening of the valve; when the valve needs to be closed: cool down the valve by starting the cooling equipment, make the bitumen in the valve solidify, plug the outlet of the valve body into the flange cover in time, and put the French The blue plug and the outlet flange of the valve body outlet are fastened together, and the asphalt is cooled and solidified; the automatic closing of the valve is realized; that is, the improvement of the opening and closing structure of the external valve is adopted to overcome the traditional built-in valve opening and closing structure. The asphalt valve has complex structure, high cost, easy to block, difficult to flow out, easy to damage, and short service life

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