An exhaust alarm device
By designing a normally open contact in parallel within the pump room of the coking industry and linking it with the central control unit to control the exhaust alarm device, the problem of lag in manually starting the axial flow fan was solved, and an automatic and timely response was achieved when the benzene content exceeded the standard, thus improving safety and reliability.
CN224536582UActive Publication Date: 2026-07-21唐山首钢京唐西山焦化有限责任公司
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 唐山首钢京唐西山焦化有限责任公司
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
In the coking industry, when the benzene concentration in the pump room exceeds the standard, the manual operation of starting the axial flow fan is subject to lag and uncertainty, which affects the safety and health of the personnel on duty.
Method used
Design an exhaust alarm device that automatically starts the exhaust fan when the benzene content exceeds the standard through parallel normally open contacts and linkage control with the central control unit. Combined with redundancy design, it ensures timely response.
Benefits of technology
This improved the timeliness and reliability of the ventilation system, eliminated safety hazards, and ensured the safety and health of personnel on duty.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224536582U_ABST
Abstract
The utility model discloses a kind of exhaust alarm devices, comprising: benzene content alarm, be set in pump house, including the first normally open contact and the second normally open contact in parallel, the input end of the first normally open contact and the second normally open contact, all with power end connection, the output end of the first normally open contact and the second normally open contact, all as the signal output end of benzene content alarm;Exhaust fan, for the exhaust of pump house, the signal output end of the first normally open contact is electrically connected with the control end of exhaust fan;Central control machine, the signal output end of the second normally open contact is electrically connected with central control machine, central control machine is also electrically connected with the control end of exhaust fan.The device can control exhaust fan self-starting, realize fast response.
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