A standby pressurized circulation pump for fire water supply

Abstract

The invention discloses a fire control water supply backup pressure boost circulating pump, and belongs to the field of fire control water reserve. The pressure boost circulating pump comprises a water storage tank, a water supply pipeline connected with the water storage tank, at least one group of regulating subassemblies connected with the water storage tank through the water supply pipes, and a control box connected electrically with the regulating components and used for controlling the output of signals; a single unit water outgoing device is arranged on the water storage tank, the water for fire control use is connected with a water outgoing pipe in the water outgoing device, and a water flow meter is also arranged on the water outgoing pipe; the regulating subassemblies include a fire control pump, a first electric contact pressure meter, a circulating pump, a second electric contact pressure meter, a regulating valve and a filter device, wherein the circulating pump and the second electric contact pressure meter are connected in parallel with a main pipe; the first electric contact pressure meter and the second electric contact pressure meter are respectively mounted on the rear side of the fire control pump and the circulating pump water outgoing side of the regulating subassemblies and in front of the regulating valve. According to the pressure boost circulating pump, the replacements of different power pump bodies are achieved, manual watching is not necessary, frequent starts and stops of high power pumps are prevented fundamentally, and the service life of the pump is increased.

Description

technical field [0001] The invention relates to the field of fire-fighting water supply equipment, in particular to a standby pressurized circulation pump for fire-fighting water supply. Background technique [0002] With the development of economy, the importance of fire water storage and water storage system is getting higher and higher. The working principle of its fire water storage is that when the pressure inside the air pressure tank is at the preset value, the fire water supply pipe network is in a high pressure state, and the pressure stabilizing pump and fire pump are both in a stopped state. With the leakage of the pipe network or other reasons Pressure relief, when the pressure in the tank drops from the preset value to a certain level, the pressure-stabilizing pump will be automatically started to replenish water to the air-pressure tank until the pressure in the tank reaches the preset value, and the pressure-stabilizing pump will stop running, thus ensuring th...

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Problems solved by technology

[0003] However, the user found that when the water in the storage tank is at the warning level and the fire truck is using water, the trigger signal of the fire pump will be triggered and turned off continuously, causing the fire pump and the regulator pump to start and stop frequently; and this The power of this kind of pump body is extremely high. Repeatedly switching the pump body many times in a short period of time will generate a huge current instantaneously. The current impact will affect the components, which will not only reduce the service life of the pump body, but also easily damage the pump body. , will greatly consume power

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