CN204972766U - Foam generating device - Google Patents
Foam generating device Download PDFInfo
- Publication number
- CN204972766U CN204972766U CN201520705238.4U CN201520705238U CN204972766U CN 204972766 U CN204972766 U CN 204972766U CN 201520705238 U CN201520705238 U CN 201520705238U CN 204972766 U CN204972766 U CN 204972766U
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- liquid
- gas
- foam
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- spindle
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Abstract
The utility model discloses a foam generating device, including mixing chamber, mixing chamber's front portion type of being venturi section, mixing chamber's rear portion is equipped with the spindle spoiler, and mixing chamber's entry linkage has air supply and foam liquid feeding device, and the low reaches of spindle are equipped with filter screen, mixing chamber's exit linkage foam injection apparatus. At first gas -liquid mixing under type of the receiving venturi section restrictive function of gas -liquid two -phase, then, gas -liquid two -phase downriver meets the vortex effect of spindle spoiler, further gas -liquid mixing, gaseous phase inertia is less, the diversion flows away around the spindle spoiler rapidly, liquid phase inertia is great, collide mutually with the windward side of spindle spoiler, the liquid phase is disperseed into tiny liquid drop or brin, in the increase of the regional gas -liquid two -phase area of contact of collision, at the low reaches of spindle vortex spare gas -liquid two -phase through the filter screen, further refine liquid drop and brin, foam liquid after the mixing flows to the foam injection apparatus in low reaches through the mixing chamber export.
Description
Technical field
The utility model relates to a kind of foam-making apparatus, especially a kind of foam-making apparatus with class venturi pipeline section and spindle flow spoiler.
Background technology
It is all rely on suction type fixed froth installation or compressed air foam fire-extinguishing apparatus that current tank fire, airport leak oil plant fire etc., and the injection of these extinguishing devices is all spray based on gas-liquid two-phase.Wherein, foam maker is the device that gas-liquid enters that mixing produces foam, and gas-liquid blending quality directly determines the quality that foam generates.Therefore the foam maker that research structure is simple, quality is firm is extremely important.
Utility model content
In order to solve the deficiencies in the prior art, the utility model proposes a kind of foam-making apparatus with class venturi pipeline section and spindle flow spoiler, the utility model adopts following technical scheme:
A kind of foam-making apparatus, comprise blending room, the front portion of blending room is class venturi pipeline section, the rear portion of blending room is provided with spindle flow spoiler, the entrance of blending room is connected with source of the gas and foam solution feedway, and the downstream of spindle is provided with filter screen, and the outlet of blending room connects apparatus for spray of foam;
After the entrance of gas-liquid two-phase blending room enters blending room, first gas-liquid blending under class venturi pipeline section restrictive function is subject to, then, gas-liquid two-phase runs into the flow-disturbing effect of spindle flow spoiler in downstream, further gas-liquid blending, gas phase inertia is less, rapid break-in flows away from the surrounding of spindle flow spoiler, liquid phase inertia is larger, collide with the windward side of spindle flow spoiler, liquid phase is dispersed into tiny drop or brin, increase in collision area gas-liquid two-phase contact area, at the downstream gas-liquid two-phase of spindle flow-disturbing part through filter screen, further refinement drop and brin, foam solution after blending is through the apparatus for spray of foam of blending room outlet flow to downstream.
Preferably, the entrance of described blending room comprises gas phase entrance and liquid phase entrance, and liquid phase entrance is in centre, and gas phase entrance is around liquid phase entrance.
Preferably, the inlet diameter size of described blending room is little compared with the diameter of blending room, and gas-liquid two-phase, after entrance enters blending indoor, expansion flowing occurs.
Preferably, described spindle flow spoiler is welded in blending chamber interior walls by cross frame.
Preferably, described class venturi pipeline section comprises contraction section and expansion segment, and namely the flow area of class venturi pipeline section first shrinks rear expansion, and gas-liquid two-phase first accelerates in contraction section step-down, after slow down in expansion segment supercharging.
The Advantageous Effects adopting as above technical scheme to obtain is:
Simply, handling ease, installation cost is lower for band class venturi pipeline section and spindle spoiler construction.When the least possible minimizing Liquid Flow resistance, improve gas-liquid blending effect largely, reinforced foam luminous efficiency.
Accompanying drawing explanation
Fig. 1 is foam-making apparatus structural representation.
Detailed description of the invention
1 detailed description of the invention of the present utility model is described further by reference to the accompanying drawings:
A kind of foam-making apparatus, comprise blending room 4, the front portion of blending room is class venturi pipeline section 3, the rear portion of blending room is provided with spindle flow spoiler 5, the entrance of blending room is connected with source of the gas and foam solution feedway, and the downstream of spindle is provided with filter screen 6, and the outlet 7 of blending room connects apparatus for spray of foam.After the entrance of gas-liquid two-phase blending room enters blending room, first gas-liquid blending under class venturi pipeline section restrictive function is subject to, then, gas-liquid two-phase runs into the flow-disturbing effect of spindle flow spoiler in downstream, further gas-liquid blending, gas phase inertia is less, rapid break-in flows away from the surrounding of spindle flow spoiler, liquid phase inertia is larger, collide with the windward side of spindle flow spoiler, liquid phase is dispersed into tiny drop or brin, increase in collision area gas-liquid two-phase contact area, at the downstream gas-liquid two-phase of spindle flow-disturbing part through filter screen, further refinement drop and brin, foam solution after blending is through the apparatus for spray of foam of blending room outlet flow to downstream.
The entrance of blending room comprises gas phase entrance 1 and liquid phase entrance 2, and liquid phase entrance is in centre, and gas phase entrance is around liquid phase entrance.The inlet diameter size of blending room is little compared with the diameter of blending room, and gas-liquid two-phase, after entrance enters blending indoor, expansion flowing occurs.
Spindle flow spoiler is welded in blending chamber interior walls by cross frame.
Class venturi pipeline section comprises contraction section and expansion segment, and namely the flow area of class venturi pipeline section first shrinks rear expansion, and gas-liquid two-phase first accelerates in contraction section step-down, after slow down in expansion segment supercharging.Because the density of gas-liquid two-phase is different with flow velocity, enhance gas-liquid blending effect in contraction and expansion segment.Then, run into the flow-disturbing effect of spindle flow-disturbing part in downstream, strengthen gas-liquid blending effect further.Gas-liquid two-phase from expansion segment out after, run into the inhibition of spindle flow-disturbing part, gas phase inertia is less, and rapid break-in flows away from the surrounding of spindle.Liquid phase inertia is comparatively large, and collide with the front of spindle, liquid phase is dispersed into tiny drop or brin, thus increases rapidly in collision area gas-liquid two-phase contact area, and gas-liquid blending effect is better.
Certainly; more than illustrate and be only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the guidance of this description; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this description, protection of the present utility model ought to be subject to.
Claims (5)
1. a foam-making apparatus, comprise blending room, it is characterized in that, the front portion of described blending room is class venturi pipeline section, the rear portion of blending room is provided with spindle flow spoiler, the entrance of blending room is connected with source of the gas and foam solution feedway, and the downstream of spindle is provided with filter screen, and the outlet of blending room connects apparatus for spray of foam.
2. a kind of foam-making apparatus according to claim 1, is characterized in that, the entrance of described blending room comprises gas phase entrance and liquid phase entrance, and liquid phase entrance is in centre, and gas phase entrance is around liquid phase entrance.
3. a kind of foam-making apparatus according to claim 2, is characterized in that, the inlet diameter size of described blending room is little compared with the diameter of blending room, and gas-liquid two-phase, after entrance enters blending indoor, expansion flowing occurs.
4. a kind of foam-making apparatus according to claim 1, is characterized in that, described spindle flow spoiler is welded in blending chamber interior walls by cross frame.
5. a kind of foam-making apparatus according to claim 1, it is characterized in that, described class venturi pipeline section comprises contraction section and expansion segment, and the flow area of class venturi pipeline section first shrinks rear expansion, gas-liquid two-phase first accelerates in contraction section step-down, after slow down in expansion segment supercharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705238.4U CN204972766U (en) | 2015-09-11 | 2015-09-11 | Foam generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705238.4U CN204972766U (en) | 2015-09-11 | 2015-09-11 | Foam generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204972766U true CN204972766U (en) | 2016-01-20 |
Family
ID=55107189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705238.4U Withdrawn - After Issue CN204972766U (en) | 2015-09-11 | 2015-09-11 | Foam generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204972766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080004A (en) * | 2015-09-11 | 2015-11-25 | 中国石油化工股份有限公司 | Foam generation device |
| CN108150181A (en) * | 2018-02-01 | 2018-06-12 | 辽宁三三工业有限公司 | A kind of shield machine foams mix disturbing flow device |
-
2015
- 2015-09-11 CN CN201520705238.4U patent/CN204972766U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080004A (en) * | 2015-09-11 | 2015-11-25 | 中国石油化工股份有限公司 | Foam generation device |
| CN105080004B (en) * | 2015-09-11 | 2018-10-12 | 中国石油化工股份有限公司 | A kind of foam-making apparatus |
| CN108150181A (en) * | 2018-02-01 | 2018-06-12 | 辽宁三三工业有限公司 | A kind of shield machine foams mix disturbing flow device |
| CN108150181B (en) * | 2018-02-01 | 2023-10-17 | 辽宁三三工业有限公司 | Foam mixing turbulence device for shield tunneling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20181012 |