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Spiral flow mixer for positive pressure metering injection type proportionally-mixing device

A proportional mixing device and mixer technology, which is applied in fire rescue and other directions, can solve problems such as affecting the fire extinguishing effect, unstable mixing, and unevenness.

Active Publication Date: 2014-12-10
福建天广消防有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, whether it is a negative pressure proportional mixer or a positive pressure proportional mixer, turbulent flow is very easy to occur during the mixing process of foam liquid and water flow. This turbulent flow phenomenon will cause mixing instability and unevenness, and ultimately affect the fire extinguishing effect.

Method used

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  • Spiral flow mixer for positive pressure metering injection type proportionally-mixing device
  • Spiral flow mixer for positive pressure metering injection type proportionally-mixing device
  • Spiral flow mixer for positive pressure metering injection type proportionally-mixing device

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Embodiment Construction

[0024] The present case will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] This case involves a spiral flow mixer for positive pressure metering injection proportional mixing device, such as Figure 1-3 As shown, it mainly includes a mixer body 1 and a continuous spiral deflector 2 .

[0026] The mixer body 1 is preferably assembled from a front circular tube wall and a rear circular tube wall. The mixer body 1 is provided with a body chamber through which both ends are connected. The two ends of the body chamber are opened as a water inlet 101 and a liquid outlet 102, and the direction from the water inlet 101 to the liquid outlet 102 is defined as the axial direction. The body chamber is divided into a spiral baffle chamber 11 and a swirl chamber 12 which are connected in the axial direction.

[0027] A core body is arranged inside the swirl chamber 12, and a crushing chamber 14 and an injection chambe...

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Abstract

The invention discloses a spiral flow mixer for a positive pressure metering injection type proportionally-mixing device. The spiral flow mixer comprises a mixer body and a continuous spiral deflector; a body cavity is formed in the mixer body, openings in two ends of the body cavity are a water inlet and a liquid outlet; the body cavity is axially divided into a spiral deflection chamber and a spiral flow chamber which are supported; a core body is arranged in the spiral flow chamber, the core body is internally provided with a crushing cavity and a spraying cavity which are arranged side by side along an axial direction and are communicated, and a foam liquid channel is arranged between the mixer body and the core body; the continuous spiral deflector is installed in the spiral deflection chamber in a matching manner, a double-spiral sheet is arranged at the outer wall of the continuous spiral deflector, the double-spiral sheet and the inner wall of the spiral deflection chamber form a spiral deflection channel, the continuous spiral deflector is internally provided with a Venturi effect channel, an inlet of the Venturi effect channel is communicated with the water inlet, and an outlet of the Venturi effect channel is communicated with the crushing cavity. According to the spiral flow mixer, by means of creative structure design, the purposes of highly and uniformly mixing and improving the fire extinguishing effect are achieved.

Description

technical field [0001] The invention relates to a foam liquid mixer, in particular to a helical flow mixer used in a positive pressure metering injection proportional mixing device. Background technique [0002] The foam proportional mixer is the "nerve center" of the foam fire extinguishing system, and its working performance is directly related to the success or failure of the foam fire extinguishing system in extinguishing fires. Foam proportional mixing devices can be roughly divided into negative pressure proportional mixing devices and positive pressure proportional mixing devices according to different mixing methods, and their corresponding mixers are negative pressure proportional mixers and positive pressure proportional mixers. At present, regardless of whether it is a negative pressure proportional mixer or a positive pressure proportional mixer, turbulent flow is prone to occur during the mixing process of foam liquid and water flow. This turbulent flow phenomen...

Claims

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Application Information

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IPC IPC(8): A62C5/02
Inventor 柳金亮黄亚树黄自强
Owner 福建天广消防有限公司
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