Gravity differential pressure type odorizing device

By using a gravity differential pressure odorization device, the injection of odorant is driven by natural pressure difference. Combined with a control loop consisting of a controller and a solenoid valve, the problems of inaccurate odorization and difficulty in recording and tracing at low-flow natural gas stations are solved, achieving the effects of accurate odorization and traceable recording.

CN224339924UActive Publication Date: 2026-06-09SHENYANG YANGZHENG IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG YANGZHENG IND CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing odorization devices at low-flow natural gas stations cannot precisely adjust the odor dosage, and odorization records are not easily traceable, resulting in substandard natural gas concentrations and large recording errors.

Method used

A gravity differential pressure odorization device is adopted, which uses the natural pressure difference between the odorant storage tank and the natural gas pipeline to drive the injection of odorant. The controller adjusts the odorization amount according to the changes in liquid level and flow rate, and records the number of odorizations and the dosage. A magnetic float level gauge and a solenoid valve are used to form a control loop to achieve precise control and recording.

Benefits of technology

It enables precise odorization of small-flow natural gas, ensuring that the concentration meets safety standards and allows for traceability of odorization records. It has a simple structure, low failure rate, and is suitable for remote areas and unattended sites.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224339924U_ABST
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Abstract

This utility model discloses a gravity differential pressure odorization device, belonging to the technical field of natural gas odorization equipment. The device includes an odorant storage tank positioned above a natural gas pipeline. The top of the odorant storage tank is connected to an upstream pressure compensation pipe of the natural gas pipeline, and the bottom of the odorant storage tank is connected to a downstream filling pipe of the natural gas pipeline. A pressure compensation solenoid valve is installed on the pressure compensation pipe, and a one-way valve and a filling solenoid valve are sequentially installed on the filling pipe. A level gauge is installed on the odorant storage tank. This utility model utilizes the natural pressure difference between the gravity of the odorant liquid column and the natural gas pressure to drive the injection of odorant, saving energy and eliminating the need for electrical explosion-proof design. Simultaneously, the controller can adjust the odorization amount according to changes in the liquid level in the storage tank or changes in the flow rate of the natural gas pipeline, ensuring that the natural gas reaches the safe odor threshold.
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