Three-proof wellhead combination device

Abstract

The invention discloses a three-proofing well mouth combination device. The device comprises a pipe joint, a first joint mechanism and a compression spring, wherein the first joint mechanism comprisesa first support part, a first ball embedded in the first support part, and a first guide part arranged above the first ball; the first support part is provided with a pressure taking hole; the firstball can move back and forth to close or open the pressure taking hole; the first guide part can move along the pressure taking hole; multiple first through holes are formed in the first guide part; the compression spring is fixed in a cavity of the pipe joint, and one end of the compression spring is fixedly connected with the first ball; and when a pressure measuring device is fixed in the pressure taking hole and makes contact with the first ball in the first guide part, downward pressing force is provided to the first ball to compress the compression spring to form a gap between the firstball and the first support part, and the pressure taking hole is opened by the first ball. Through the arrangement of the first joint mechanism, the compression spring, a second joint mechanism and ashell, the device achieves the effects of freeze prevention, destruction prevention and burglary prevention.

Description

technical field [0001] The invention belongs to the technical field of petroleum transportation, and relates to a three-proof wellhead combination device. Background technique [0002] Fluids, including petroleum, water and other chemical production, are mostly transported by pipelines. In order to ensure the normal transportation function of the pipeline, it is necessary to monitor the pressure of the fluid in the pipeline frequently. It is generally monitored by connecting a pressure gauge outside the pipeline. However, the pressure gauge installed on the pipeline may be stolen or smashed, which will affect its use and cannot guarantee real-time monitoring of pressure. At the same time, in cold regions, when the temperature is low, because there is still a certain distance between the pressure gauge and the pipeline, the fluid transported from the pipeline to the pressure gauge is frozen, resulting in inaccurate measurement or failure of the pressure gauge. . Therefore...

AI Technical Summary

Problems solved by technology

However, the pressure gauge installed on the pipeline will be stolen or smashed, which will affect its use and cannot guarantee real-time monitoring of pressure

At the same time, in cold regions, when the temperature is low, because there is still a certain distance between the pressure gauge and the pipeline, the fluid transported from the pipeline to the pressure gauge is frozen, resulting in inaccurate measurement or failure of the pressure gauge.

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