一种带回流的油箱放压过滤装置
By designing a tank pressure relief filter device with reflux, the oil droplets in the tank exhaust are filtered by the filter screen and the oil is returned, which solves the problem of oil droplets affecting safety and wasting oil in the tank pressure relief device, and improves safety and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 新乡市航宏航空机电设备有限公司
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
The oil tank pressure relief device releases oil droplets in the gas during venting, which affects safety, and the filtered oil cannot be returned, resulting in waste.
Design an oil tank pressure relief and filtration device with reflux, comprising an oil tank body, a conveying hopper, a fixed sleeve and a filter screen. The filter screen filters oil droplets in the oil tank exhaust and the oil is refluxed back to the oil tank under the control of an electromagnetic constant pressure valve.
It effectively removes oil droplets during oil tank depressurization, improving safety and enabling oil return, thus reducing waste.
Smart Images

Figure CN224510876U_ABST
Abstract
Claims
1. A pressure relief filter device with backflow for an oil tank, comprising an oil tank body (1), a conveying hopper (2), a fixing sleeve (3) and a filter screen (4), characterized in that: A fixed pipe (201) is fixedly connected to one edge of the upper part of the oil tank body (1). A conveying bucket (2) is fixedly connected to the middle of the periphery of the fixed pipe (201). A return pipe (203) is fixedly connected to the lower part of the outer periphery of the conveying bucket (2). A fixed sleeve (3) is fixedly connected to the top of the conveying bucket (2). Several filter screens (4) are arranged at equal intervals along the central axis inside the fixed sleeve (3). The filter screens (4) are arranged in an inverted hollow cone shape.
2. The oil tank pressure relief filter device with backflow according to claim 1, characterized in that: A base (103) is fixed to the lower periphery of the oil tank body (1), an oil supply pipe (101) is fixedly connected to the upper periphery of the oil tank body (1) away from the fixed pipe (201), and an oil outlet pipe (102) is fixedly connected to the lower end of one end of the oil tank body (1).
3. The oil tank pressure relief filter device with backflow according to claim 1, characterized in that: An electromagnetic constant pressure valve (202) is fixed around the periphery of the fixed pipe (201), and the electromagnetic constant pressure valve (202) is located between the conveying bucket (2) and the oil tank body (1).
4. The oil tank pressure relief filter device with backflow according to claim 1, characterized in that: A solenoid valve (204) is fixed on the periphery of the return pipe (203), and the end of the return pipe (203) away from the conveying bucket (2) is fixedly connected to the upper periphery of the oil tank body (1).
5. The oil tank pressure relief filter device with backflow according to claim 1, characterized in that: The top of the fixed sleeve (3) is fixed with a sealing cap (301), and an output pipe (302) is vertically fixed inside the sealing cap (301).
6. The oil tank pressure relief filter device with backflow according to claim 1, characterized in that: Each of the filter screens (4) is fixed with a fixing ring (401) at its top end, and each fixing ring (401) is fixed to the inner wall of the fixing sleeve (3).