CN203090312U - Pneumatic type foam proportion mixing device - Google Patents
Pneumatic type foam proportion mixing device Download PDFInfo
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- CN203090312U CN203090312U CN 201220734631 CN201220734631U CN203090312U CN 203090312 U CN203090312 U CN 203090312U CN 201220734631 CN201220734631 CN 201220734631 CN 201220734631 U CN201220734631 U CN 201220734631U CN 203090312 U CN203090312 U CN 203090312U
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Abstract
The utility model discloses a pneumatic type foam proportion mixing device. The pneumatic type foam proportion mixing device comprises a mixing cavity, an air compressor, a foam storage tank, a throttling valve and a high-pressure water pump, wherein the air compressor is connected with two compressed air outlets in parallel, one outlet is communicated with the mixing cavity by a one-way valve, and the other outlet is communicated with the foam storage tank by a pressure adjusting valve; an outlet of the foam storage tank is communicated with the throttling valve, a three-way valve, the high-pressure water pump and the mixing cavity in sequence; and one joint of the three-way valve is communicated with a water source by a pipeline. The pneumatic type foam proportion mixing device disclosed by the utility model has the advantages that the structure is simple and compact, and proved by detection, the foam mixing adjustment is accurate, and the pressure loss is less; since no decompression is carried out on a fire-extinguishing medium, the injection pressure is large and the requirement for various complicated fire-extinguishing sites can be met; and a gas power source of a compressed-air foam fire-extinguishing system is fully utilized, and no pressurizing equipment is added, so that the energy is saved, the configuration is reduced and the cost is reduced.
Description
Technical field
The utility model belongs to Machine Design and makes the field, especially belongs to fire-fighting equipment and manufactures and designs the field, particularly a kind of pneumatic type foam proportioning unit.
Background technology
Characteristics such as that froth fire extinguishing system has is safe and reliable, economical and practical, fire-fighting efficiency height especially have more outstanding superiority to the category-B fire of putting out a fire to save life and property, and are the basic modes of putting out a fire to save life and property of present home and abroad oil fire.Foam proportioner is froth fire extinguishing system " nerve center ", and the quality of its service behaviour is directly connected to the success or failure that froth fire extinguishing system fights a fire.Foam proportioner has types such as pressure type proportional mixer for air foam, circular pump type foam proportioner, in-line foam concentrate inducer.
The pressure type foam proportioner
The pressure type foam proportioner is applied to be made up of water inlet pipe, drain pipe, mixing chamber, anemostat etc. in ZP32 foam/water spray automatic fire extinguishing system, low expansion foam fire extinguishing system, the AFFF sprinkling fire-distinguishing system.Be cast with arrow on the mixing chamber of proportioner, expression flows to.The arrow tail end should be connected with pumping line during installation, and the arrow end should be responsible for foam and connect, and water inlet pipe, drain pipe are connected with foam liquid tank respectively.
Operation principle: proportioner mainly utilizes venturi principle, during press water passing ratio blender, produce negative pressure differential between portion and the foam solution basin within it, make basin inner foam liquid enter proportioner by the foam solution pipe that is connected with proportioner, the orifice plate that control foam solution flow is arranged in tube connector just forms foam---the water mixed liquid of stablizing mixed proportion.
The negative line pressure foam proportioner
Negative line pressure formula foam proportioner is mainly used in the ratio of equipment such as foam fire hydrant box, mobile foam cart to be mixed.
Operation principle: after press water entered proportioner from import, most of water sprayed into anemostat at a high speed through nozzle, formed negative pressuren zone between nozzle and anemostat, and foam solution is inhaled into negative pressuren zone by liquid sucting port, entered anemostat simultaneously with press water, flowed out from outlet; Also have the blended liquid phase that the sub-fraction press water then flows out by control valve and anemostat to mix the back from the outlet outflow.The handle of turn control valve (blender side) is regulated the mixing ratio of mixed liquor.
Design feature: blender is a vacuum lines formula blender, and when pressure of supply water reached force value, blender sucked foam solution in the water supply line; The blender import is connected with water supply line by KY65 type tube tooth interface, and outlet is connected with the mixed liquor export pipeline by KY65 type pipe tooth; Control is housed on the blender sucks the foam solution adjustable valve, the direction board on the control valve indicates inhales the foam solution proportional numerical value.
The circular pump type foam proportioner
The negative pressure pump proportioner is applied in the suction type froth fire extinguishing system.Pump proportioner is made up of regulating handle, direction board, control valve, mixing chamber, anemostat etc.Be cast with arrow on the mixing chamber of pump proportioner, expression flows to.Sign different blended interflow amount is respectively 16L/s, 24L/s, 32L/s, 48L/s, 64L/s on the direction board.Regulating handle is according to the corresponding adjusting foams mix of direction board flow quantity.The arrow tail end should be connected with pumping line during installation, and the arrow end should be connected with pump water inlet, and liquid sucting port and foam liquid tank are connected.
Design feature: blender is the circular pump type blender that is made of regulating handle, direction board, control valve, mixing chamber, anemostat etc.; The blender direction board is marked with different numerical value, and its numerical value is corresponding with the mixed liquor value of generation and spray foam equipment; Blender is fit to the foam solution of adapted 6%; Blender should be installed near the water pump, is connected with water inlet pipe with the outlet pipe of water pump, and blender requires pump inlet pressure to be less than 0.03MPa, otherwise will influence the absorption foam solution performance of blender; Blender is in 0.6～1.4MPa inlet pressure ranges, and it draws foam liquid measure is constant substantially at a certain shelves, and produces and spray foam equipment when its mixing liquid measure changes under different pressures, and its mixing ratio will change.Therefore to suitably adjust and control and produce and the pressure of spray foam equipment, make its pressure can not be too low or too high, so that guarantee that foam liquid measure shared ratio in the mixing liquid measure is 6～7%.
Traditional foam ratio gaseous mixture device as adopting venturi principle, can make the pressure loss of main flow medium (water) reach 35%, at the bottom of the efficient.Adopt negative line pressure or negative pressure circular pump type, complex structure, cost height.
Summary of the invention
The utility model discloses a kind of pneumatic type foam proportioning unit according to the deficiencies in the prior art.Problem to be solved in the utility model provides the little pneumatic type foam proportioning unit of a kind of simple in structure, pressure medium loss.
The utility model is achieved through the following technical solutions:
The pneumatic type foam proportioning unit, comprise hybrid chamber, air compressor, foam holding vessel, choke valve and high-pressure hydraulic pump, it is characterized in that: air compressor two compressed air outlets in parallel, an outlet is communicated with hybrid chamber by check valve, and an outlet is communicated with the foam holding vessel by pressure regulator valve; Foam holding vessel outlet order successively is communicated with choke valve, triple valve, high-pressure hydraulic pump and hybrid chamber; One interface of triple valve is communicated with by pipeline with the water source.
The foam holding vessel has foam filler and foam to clean outlet, and foam filler and foam clean outlet and be provided with valve.
The pneumatic type foam proportioning unit, it is a kind of positive-pressure type foam proportioner, device utilizes a part of gas of air compressor as power, by pressure regulator valve pressure is adjusted to 0.2～0.5bar, stoste in the foam holding vessel is flow through from choke valve, enter system by triple valve after the throttling and mix with medium.Device realizes controlling the foam dope flow by the aperture of regulating choke valve, reaches mixing ratio 1%, 3%, 6% requirement such as grade.
Because of pressure regulator valve provides constant compression force, flow as long as regulate the aperture of choke valve, just can be controlled the foam dope flow by the aperture decision of choke valve.If system's mixed liquor flow is constant, realize that the foam flow of certainty ratio just is more prone to.
Above-mentioned pneumatic type foam proportioning unit adopts the air compressor in the existing equipment system, set up the road gases at high pressure outlet in parallel with air-aqueous medium hybrid chamber, these road gases at high pressure are pressurizeed by the foam holding vessel to sealing after the pressure regulator valve pressure regulation, foam after the pressurization realizes controlling the foam dope flow with the mixing of realization ratio by the aperture of choke valve, and mixed foam dope-aqueous mixtures is sprayed by fighting nozzle after air-aqueous medium hybrid chamber mixes with air through entering after the high-pressure hydraulic pump pressurization.Because firing-fighting medium does not pass through any decompression, its expulsion pressure is big, can satisfy the requirement of various complicated fire-extinguishing locations.And the utility model makes full use of the pneumatic power source of compressed air foam fire-extinguishing system, not newly-increased pressurized equipment, and energy savings reduces configuration, reduces cost.
In sum, the utility model helpfulness, the utility model compactness simple for structure, proof adopts the utility model device foams mix to regulate accurately after testing, and the pressure loss is little; Because firing-fighting medium does not pass through any decompression, its expulsion pressure is big, can satisfy the requirement of various complicated fire-extinguishing locations.And this device makes full use of the pneumatic power source of compressed air foam fire-extinguishing system, not newly-increased pressurized equipment, and energy savings reduces configuration, reduces cost.
Description of drawings
Fig. 1 is the utility model pneumatic type foam proportioning unit syndeton schematic diagram;
Fig. 2 is that the utility model foam ratio is mixed the syndeton schematic diagram, also is dotted portion syndeton detailed maps among Fig. 1.
Among the figure, the 1st, choke valve, the 2nd, check valve, the 3rd, hybrid chamber, the 4th, high-pressure hydraulic pump, the 5th, foam holding vessel, the 6th, air compressor, the 7th, triple valve, the 8th, water source, the 9th, pressure regulator valve, the 10th, filling opening.
The specific embodiment
Below by embodiment the utility model is further described; present embodiment only is used for the utility model is further detailed; but can not be interpreted as the restriction to the utility model protection domain, those skilled in the art can make the scope that some nonessential improvement and adjustment belong to the utility model protection according to above-mentioned content of the present utility model.
The pneumatic type foam proportioning unit, comprise hybrid chamber 3, air compressor 6, foam holding vessel 5, choke valve 1 and high-pressure hydraulic pump 4, air compressor 6 two compressed air outlets in parallel, an outlet is communicated with hybrid chamber 3 by check valve 2, and an outlet is communicated with foam holding vessel 5 by pressure regulator valve 9; Foam holding vessel 5 outlets order successively are communicated with choke valve 1, triple valve 7, high-pressure hydraulic pump 4 and hybrid chamber 3; One interface of triple valve 7 is communicated with by pipeline with the water source.
This pneumatic type foam proportioning unit utilizes conventional fire-fighting equipment existing device, at air compressor 6 outlets increase in parallel one road gas passage, uses it for the foam ratio and mixes, and regulate flow by choke valve 1 and realize the quantitative ratio mixing.
As depicted in figs. 1 and 2, hybrid chamber 3, air compressor 6, foam holding vessel 5, choke valve 1 and high-pressure hydraulic pump 4 etc. are existing equipment or have commercially available, Fig. 1 is a pneumatic type foam proportioning unit syndeton schematic diagram, the dotted line coupling part is described one road gas passage and the foam proportioner of increasing in parallel among the figure, and more detailed syndeton as shown in Figure 2.
This pneumatic type foam proportioning unit adopts the air compressor 6 in the existing equipment system, set up the road gases at high pressure outlet in parallel with air-aqueous medium hybrid chamber 3, these road gases at high pressure are pressurizeed by the foam holding vessel 5 to sealing after pressure regulator valve 9 pressure regulation, foam after the pressurization realizes controlling the foam dope flow with the mixing of realization ratio by the aperture of choke valve 1, and mixed foam dope-aqueous mixtures enters after high-pressure hydraulic pump 4 pressurizations and sprayed by fighting nozzle after air-aqueous medium hybrid chamber 3 mixes with air.Because firing-fighting medium does not pass through any decompression, its expulsion pressure is big, can satisfy the requirement of various complicated fire-extinguishing locations.And this device makes full use of the pneumatic power source of compressed air foam fire-extinguishing system, not newly-increased pressurized equipment, and energy savings reduces configuration, reduces cost.
Claims (2)
1. pneumatic type foam proportioning unit, comprise hybrid chamber (3), air compressor (6), foam holding vessel (5), choke valve (1) and high-pressure hydraulic pump (4), it is characterized in that: air compressor (6) two compressed air outlets in parallel, an outlet is communicated with hybrid chamber (3) by check valve (2), and an outlet is communicated with foam holding vessel (5) by pressure regulator valve (9); Foam holding vessel (5) outlet order successively is communicated with choke valve (1), triple valve (7), high-pressure hydraulic pump (4) and hybrid chamber (3); One interface of triple valve (7) is communicated with by pipeline with the water source.
2. pneumatic type foam proportioning unit according to claim 1 is characterized in that: described foam holding vessel (5) has foam filler and foam to clean outlet, and foam filler and foam clean outlet and be provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734631 CN203090312U (en) | 2012-12-27 | 2012-12-27 | Pneumatic type foam proportion mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734631 CN203090312U (en) | 2012-12-27 | 2012-12-27 | Pneumatic type foam proportion mixing device |
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| Publication Number | Publication Date |
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| CN203090312U true CN203090312U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220734631 Expired - Fee Related CN203090312U (en) | 2012-12-27 | 2012-12-27 | Pneumatic type foam proportion mixing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524717A (en) * | 2014-12-24 | 2015-04-22 | 无锡五洋赛德压缩机有限公司 | Foam fire-extinguishing device with internal screw type air compressor |
| CN104984698A (en) * | 2015-07-13 | 2015-10-21 | 山东科技大学 | Hydraulic pressurizing-feeding secondary foam generation apparatus |
| CN105363161A (en) * | 2015-11-24 | 2016-03-02 | 中国民用航空飞行学院 | Fire-fighting foam fire extinction system capable of injecting gas-liquid two-phase jet flow |
| CN108525165A (en) * | 2017-03-01 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of foam-generating device using chemical reaction |
| CN109046056A (en) * | 2018-08-23 | 2018-12-21 | 芜湖美的厨卫电器制造有限公司 | Micro bubble apparatus and water heater |
| CN115025425A (en) * | 2022-06-14 | 2022-09-09 | 华能核能技术研究院有限公司 | Fire-fighting foam spraying system |
-
2012
- 2012-12-27 CN CN 201220734631 patent/CN203090312U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524717A (en) * | 2014-12-24 | 2015-04-22 | 无锡五洋赛德压缩机有限公司 | Foam fire-extinguishing device with internal screw type air compressor |
| CN104984698A (en) * | 2015-07-13 | 2015-10-21 | 山东科技大学 | Hydraulic pressurizing-feeding secondary foam generation apparatus |
| CN105363161A (en) * | 2015-11-24 | 2016-03-02 | 中国民用航空飞行学院 | Fire-fighting foam fire extinction system capable of injecting gas-liquid two-phase jet flow |
| CN108525165A (en) * | 2017-03-01 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of foam-generating device using chemical reaction |
| CN109046056A (en) * | 2018-08-23 | 2018-12-21 | 芜湖美的厨卫电器制造有限公司 | Micro bubble apparatus and water heater |
| CN109046056B (en) * | 2018-08-23 | 2024-02-27 | 芜湖美的厨卫电器制造有限公司 | Microbubble device and water heater |
| CN115025425A (en) * | 2022-06-14 | 2022-09-09 | 华能核能技术研究院有限公司 | Fire-fighting foam spraying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |