The fire hydrant button directly starts the pump. The fire hydrant button directly starts the pump, which is connected vertically and horizontally one by one to the fire pump room control cabinet, or to the fire control room hardware start pump line and connect the pump. In this way, the start of the fire pump has the effect of dual power supplies and double circuits, and the start of the fire pump should be safe and reliable. The start of the fire pump should be based on the on-site fire hydrant button. The scene and the fire control room are combined, and they are independent and complementary to each other. They are indispensable.
Fire hydrant button display and pump start optimization design scheme The main points of the optimized design scheme implementation: (1) The fire hydrant button is a control component and is not mixed with the detector, etc., that is, it is individually wired according to the control line wiring requirements; (2) the action button display In place (point-to-point display); (3) Minimize the number of pipelines, mainly vertical wiring to facilitate construction; (4) Avoid the use of non-standard components and cabinets; (5) Fire hydrant button directly start the fire pump. If the Boshan fire pump has a simple building plan, it can be changed from "point-to-point display" to "point-plane combined display", that is, the same floor is coded with the same code, and the others are not moved.
In the design process, the entire fire control system, starting from the use of the bus system, the author analyzed the distribution characteristics of the alarm and control components in the building, that is, the detectors are widely distributed on the same floor, and the control components or equipment contain hydrants The distance between the inner floors and the floors is much smaller, and they are basically relatively concentrated in the same vertical position, and the coding control is not restricted by the floors. Therefore, the entire control system basically adopts the vertical-oriented wiring design. This optimized design is also convenient for concealment and construction, and the line is more economical, safe and reliable.
Photovoltaic inverter (PV inverter or solar inverter) can convert the variable DC voltage generated by photovoltaic (PV) solar panels into an inverter of mains frequency alternating current (AC), which can be fed back to the commercial transmission system, or for off-grid Grid usage of the grid. The photovoltaic inverter is one of the important balance of system (BOS) in photovoltaic array system, which can be used with general AC power supply equipment. Solar inverters have special functions for photovoltaic arrays, such as maximum power point tracking and island effect protection. Photovoltaic inverters usually consist of the following main parts:
DC input: The photovoltaic inverter receives DC power input from solar panels.
Inverter module: The inverter module is the core part of the inverter, responsible for converting direct current into alternating current. It contains multiple electronic components and switching circuits, through precise control and adjustment, convert direct current into alternating current of specific frequency and voltage.
Controller: The controller monitors and controls the operation and performance of the inverter to ensure the stable operation of the inverter and make optimal adjustments when needed.
Output: The output of the inverter is alternating current, which can be connected to household appliances, industrial equipment or incorporated into the grid to supply electricity.
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