Positive-pressure automatic spume proportionality mixer systems

A technology of proportional mixing and foaming, which is applied in various fluid ratio control, fire rescue, etc., to achieve the effect of stable operation, simple operation and accurate operation

Active Publication Date: 2009-10-07
BEIJING FIREFEND EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The purpose of the present invention is to provide a positive pressure automatic foam pr

Method used

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  • Positive-pressure automatic spume proportionality mixer systems
  • Positive-pressure automatic spume proportionality mixer systems

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Experimental program
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Embodiment

[0026] Embodiment: see specification attached figure 1 , figure 2 ,exist figure 2 Among them, 1 is the pressure water pipeline, 2 is the foam pipeline, 3 is the mixing pipeline, 4 is the foam tank, 5 is the foam filter, 6 is the motor, 7 is the motor controller, 8 is the control module, and 9 is the parameter input and a display module, 10 is a plunger pump, 11 is a foam control valve, 12 is a check valve, and 13 is a flow sensor.

[0027] The positive pressure automatic foam proportional mixing system in the figure includes a pressure water pipeline, a foam pipeline, and a mixing pipeline. The foam pipeline is equipped with at least a foam filter, a plunger pump, a foam control valve, and a check valve in order from the foam tank. Valve, the check valve outlet pipeline and the pressure water pipeline merge into the mixing pipeline, the mixing pipeline is provided with a flow sensor, and the flow sensor is connected to the control module through a wire, and the parameter i...

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Abstract

A positive-pressure automatic spume proportionality mixer systems includes pressure water pipeline, spume pipeline and mixer pipeline. There are at least spume tank, spume purification apparatus, ram-type pump, spume application valve ball and back valve setup at the spume pipeline with spume tank at the beginning, the out spout pipeline of back valve joins with pressure water pipeline to mixer pipeline. A flow rate sensor is set at the aforementioned mixer pipeline and connects to control module with wires, the control module connects with parameter input and display module and machine controller connecting with electric motor drive ram-type pump. The system can implement whole automatic control spume mixing proportion with simple operation, accurate adjustment, stabilizing and reliable operation activity.

Description

technical field [0001] The invention relates to the technical field of fire safety facilities, in particular to a positive pressure automatic foam proportional mixing system. Background technique [0002] The foam fire truck mixes water and foam in a certain proportion through a fire pump and a foam proportional mixing device, and then sprays them out through a foam fire cannon or a foam fire gun, quickly covering the burning material, and extinguishing the fire through isolation and cooling. In order to achieve the best fire extinguishing effect, the mixing of water and foam must comply with a certain ratio. The ratio mixing device equipped with the foam fire truck is used to ensure that the foam mixing meets the above ratio. [0003] At present, the commonly used foam proportional mixing devices are: [0004] 1) Ring pump proportional mixer. [0005] The ring pump proportional mixer utilizes the Venturi effect, and the pressure water generated by the water pump is spraye...

Claims

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Application Information

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IPC IPC(8): A62C5/02G05D11/02G05D11/13
Inventor 孙凤明何永成
Owner BEIJING FIREFEND EQUIP
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