Multipurpose Wire Connection Device for Hazardous Environments
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Solution Overview
Problem
Current wire connection devices in petroleum and chemical industries lack fireproof, explosion-proof, rain-proof, and rustproof capabilities, leading to potential accidents and maintenance issues due to rust exposure and electrical fluctuations.
Innovation Solution
A multipurpose wire connection device comprising a base plate, conductive plate, fireproof box, support, and housing with features like folded peripheries, receiving grooves, and nonconductive materials to provide fireproof, explosion-proof, and rustproof functionality, allowing for secure wire fixation and easy disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bare screw connections are used for grounding, then the device structure is simple, but the connection is vulnerable to rust and disconnection when exposed to rain
Solution Approach 1:
The device segments the grounding connection into multiple protective layers: base plate with folded peripheries for mechanical protection, fireproof box for environmental sealing, and housing for additional protection. Each layer addresses specific failure modes while maintaining overall connection integrity.
Solution Approach 2:
The device employs composite material construction combining metal base plates for structural strength, fireproof materials for thermal and environmental protection, and rust-resistant coatings or materials. This multi-material approach simultaneously achieves corrosion resistance, fireproofing, and mechanical durability.
2Reliability
If simple screw connections are used, then installation is easy, but the device lacks fireproof and explosion-proof capabilities
Solution Approach 1:
The base plate includes pre-formed folded peripheries that create sealing chambers before assembly. The fireproof box is pre-assembled with internal fireproof materials positioned ready for wire insertion. These preliminary structures enable rapid final assembly while ensuring fireproof and explosion-proof capabilities are built-in.
Solution Approach 2:
The device employs nested structure where the conductive plate with wires is inserted into the fireproof box, which is then mounted on the base plate, and finally covered by the housing. Each component nests within the previous one, creating compact, protective layers that maintain fireproof and explosion-proof ratings while facilitating straightforward assembly.
3Reliability
If rust-resistant protective structures are added, then connection reliability improves, but maintenance testing becomes difficult
Solution Approach 1:
The housing and fireproof box are designed as removable components that can be easily detached from the base plate. This dynamic design allows maintenance personnel to access the conductive plate and screw connections for testing and inspection while maintaining protective enclosure during normal operation. The structure transitions from closed protective state to open maintenance state as needed.
Solution Approach 2:
The fireproof box and housing can be extracted or removed from the base plate to provide direct access to the electrical connections inside. This extraction capability enables routine maintenance testing of grounding connections without permanently compromising the rust-resistant protective structure, as components can be removed for testing and reinstalled afterward.
4Reliability
If multiple protective layers are added for fireproof and rain-proof capabilities, then safety improves, but device complexity increases
Solution Approach 1:
The base plate with folded peripheries serves multiple functions: structural support, sealing chamber formation, and mounting surface for the fireproof box. The fireproof box simultaneously provides fireproofing, rain-proofing, and explosion-proofing. The housing adds both protection and structural integrity. Each component performs multiple protective functions, reducing the need for separate dedicated elements for each safety requirement.
Data Source
AI summary
A multipurpose wire connection device includes a base plate, a conductive plate, a wire fixation screw, a fireproof box, a support, and a dustpan-shaped housing. The support is disposed on the base plate. The fireproof box includes a rear panel, a bottom panel, two side panels, and an inserted plate. The wire fixation screw is mounted on the conductive plate. The housing is fixed on the bottom plate by a housing fixing screw. The multipurpose wire connection device prevents sparking and red burning of a ground screw when lightning current passes therein, due to corroded contact in long-term exposure to wind and rain. It avoids fire and explosion accidents. It avoids screw corrosion and facilitates ground resistance measurement. The multipurpose wire connection device can also be used for electrical relay, division, and branching. It prevents fire, explosion, rain intrusion, and rust development. It is easy to disassemble.