On-off device with anti-freezing function for tap water pipeline transportation

Abstract

The invention discloses an on-off device with an anti-freezing function for tap water pipeline transportation. The on-off device comprises a valve body, an inserting plate and two connecting pipes, wherein the inserting plate is arranged on the valve body, the inserting plate is matched with the valve body, the inserting plate is in sliding and sealed connection with an inner wall of the valve body, and the two connecting pipes are coaxially arranged and arranged on two sides of the valve body respectively; the two connecting pipes are communicated through the valve body, a lifting device is arranged at the top of the valve body and drives the inserting plate to ascend and descend, the inserting plate is located between the connecting pipes and the lifting device, through holes are formedin the inserting plate, the axes of the through holes are parallel to the axes of the connecting pipes, and the hole diameter of the through holes is equal to the inner diameter of the connecting pipes. An auxiliary mechanism and an anti-freezing mechanism are arranged in the through holes. The on-off device with the anti-freezing function for tap water pipeline transportation improve a sealing effect through the auxiliary mechanism, and in addition, an ice melting function is achieved through the anti-freezing mechanism.

Description

technical field [0001] The invention relates to the field of pipeline transportation, in particular to an opening and closing device with antifreeze function for water pipeline transportation. Background technique [0002] Pipeline transportation is a long-distance transportation method of liquid and gas materials using pipelines as a means of transportation. It is a transportation method that specifically transports petroleum, coal and chemical products from the production site to the market. It is the backbone of the unified transportation network. special components. Pneumatic tubes can sometimes do a similar job, delivering compressed gas to the solids chamber, which holds the cargo. Pipeline transportation of petroleum products is more expensive than water transportation, but still cheaper than rail transportation. Most of the pipelines are used by their owners to transport their own products. [0003] The flapper valve is one of the common equipment in tap water pip...

AI Technical Summary

Problems solved by technology

[0003] The flapper valve is one of the common equipment in tap water pipeline transportation. During the use of the existing flapper valve, when the flapper valve is in the closed state, the flapper is easily deformed by the water pressure for a long time and affects the sealing performance. In this way, when the ambient temperature is low, it is easy to cause the tap water to freeze, so that the tap water pipes cannot transport tap water normally.

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