2results about How to "Easy to fail" patented technology

This invention provides a ring network structure marine valve remote control and liquid level telemetry system, including a valve remote control data acquisition component and a liquid level telemetry data acquisition component. The valve remote control data acquisition component includes a valve remote control data acquisition box and n electric valve actuators, which are sequentially connected by cables to form a ring network structure. The liquid level telemetry data acquisition component includes a liquid level telemetry data acquisition box and n liquid level telemetry local processing units, which are sequentially connected by cables to form a ring network structure. This invention has the following advantages: The sequential connection of the n electric valve actuators and n liquid level telemetry local processing units to form a ring network structure, along with the redundant design of the ring network structure, not only significantly reduces the amount of cable used but also reduces the workload of cable laying, and ensures that any single point of failure will not cause a failure in all equipment.

The utility model discloses a heat exchanger which comprises a device shell and further comprises an observation opening, a heat exchanger, a heat exchanger and a heat exchanger, the connecting mechanism is arranged on one side of the observation opening; the observation mechanism is connected with the connecting mechanism, the observation mechanism is rotatably connected with the device shell through the connecting mechanism, and the observation mechanism rotates between a first position and a second position; when the observation mechanism rotates to the first position, the observation mechanism covers the observation opening; when the observation mechanism rotates to the second position, the observation opening is opened; the observation mechanism comprises an observation plate; the lock catch mechanism is arranged on the connecting mechanism and / or the observation mechanism, and the lock catch mechanism is used for locking the observation mechanism when the observation mechanism rotates to the first position; and the cleaning mechanism is arranged on the inner side of the observation mechanism and used for cleaning the surface of the observation plate. The condition in the device shell of the heat exchanger can be conveniently observed.