Straight through type welding jacket valve

Abstract

The invention discloses a straight through type welding jacket valve. The straight through type welding jacket valve comprises a valve body, wherein the valve body is covered with a jacket, and the jacket is fixed on the valve body through a positioning piece; a medium channel is formed between the inner wall of the jacket and the outer wall of the valve body; the two ends of the jacket are opened; and a guide inlet and a guide outlet of the medium channel are defined by the inner walls of the two ends of the jacket and the outer wall of the valve body, and are communicated through the medium channel. The valve body is covered with the jacket so that a double-layer structure is formed; the two ends of the jacket are opened, and define the guide inlet and the guide outlet with the valve body; compared with a cross-under pipe type jacket valve in which the ends of the jacket and the valve body are sealed by a plate body in the prior art, the straight through type welding jacket valve eliminates the troubles brought by cross-under pipes, reduces the medium operation resistance brought by the cross-under pipes, reduces the energy consumption of equipment for driving a medium to flow, decreases the equipment cost, saves the electric energy in the operation period, reduces the construction cost and the operation cost, and largely reduces the possibility of leading in a pollution source in the end processing of the jacket valve.

Description

technical field [0001] The invention relates to a straight-through welding jacket valve. Background technique [0002] At present, there is no uniform standard for the manufacture of jacketed valves in China. Each manufacturer manufactures them under the conditions of the process according to their own experience. Through our long-term summary, we found that all jacketed valves on the market have a common feature that is to have a jumper. The design in actual engineering is based on the jacketed pipe design specification. The jacketed pipe includes an inner pipe and an outer pipe. The inner pipe circulates industrial materials, and the medium flows between the outer pipe and the inner pipe. The most widely used jacketed pipe inner pipe is DN15. --When DN50 is designed, the diameter of the crossover pipe is DN15, and when DN80--DN250, the designed crossover pipe is DN20. After consulting the data, it is found that this is designed based on a single valve. In actual projects, ...

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a straight-through welded jacket valve, which can realize the communication between the medium channel of the jacket valve and the outer pipe of the jacket pipe without processing the jumper pipe to save energy, and solve the heavy workload caused by the jumper pipe. The problem of high cost, and will not introduce pollution sources, to ensure the purity of industrial materials in the inner pipeline

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