CN201410247Y - Positive pressure type automatic foam proportion mixing system - Google Patents
Positive pressure type automatic foam proportion mixing system Download PDFInfo
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- CN201410247Y CN201410247Y CN2009201583558U CN200920158355U CN201410247Y CN 201410247 Y CN201410247 Y CN 201410247Y CN 2009201583558 U CN2009201583558 U CN 2009201583558U CN 200920158355 U CN200920158355 U CN 200920158355U CN 201410247 Y CN201410247 Y CN 201410247Y
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Abstract
A positive pressure type automatic foam proportion mixing system includes a pressure water pipeline, a foam pipeline and a mixing pipeline. The foam pipeline is successively at least provided with a foam filter, a plunger pump, a foam control valve ball and a check-valve from the foam tank. The check-valve outlet pipeline and the pressure water pipeline converge to the mixing pipeline. The mixingpipeline is provided with a flow sensor which is connected to a control module through a lead. The control module is connected with a parameter input and display module and a motor controller. The motor controller is connected to a motor driving the plunger pump. The system can automatically control the foam mixing proportion and has the advantages of simple operation, accurate adjustment and stable operation.
Description
Technical field
The utility model relates to security against fire facility technology field, particularly relates to a kind of positive-pressure automatic spume proportionality mixer systems.
Background technology
Foam truck is by fire pump, foam proportioning unit water and foam to be mixed by a certain percentage, ejects through foam water cannon or foam firefighting rifle again, covers rapidly on the comburant, extinguishes the blaze by isolated, cooling.For reaching best fire extinguishing effect, water and foams mix must meet certain proportionate relationship, and the proportion mixer that foam truck is equipped with is used for exactly guaranteeing that foams mix satisfies the aforementioned proportion relation.
At present, the conventional foam proportion mixer has:
1) pump proportioner.
Pump proportioner is owing to be to utilize Venturi effect, and the press water that produces with water pump sprays formation in Venturi tube negative pressure sucks foam solution.The different definite flows by foam solution of metering-orifice size is arranged, corresponding different gear on the proportioner.Determine the gear of proportioner according to the flow of Fire branches and monitors, guarantee the ratio of foams mix.Though pump proportioner is simple in structure, but the influence of fluctuations that is stressed is very big, when pressure exceeds allowed band, deviation appears in mixing ratio, the foam quality that produces does not reach extinguishment requirement, and need use simultaneously with the apparatus for spray of foam that flow is complementary, use under battle conditions and brought limitation.
2) pipeline malleation proportioner.
Pipeline malleation proportioner be by water pump and foam pump (or other pressure foam sources) respectively to the mixing of pressurizeing of water and foam solution, form foam mixing liquid, flow to high multiple or medium expansion foam generator.After specifications and models were determined, the factor that influences this kind pressure proportioning tank mixing ratio depended primarily on and enters its interior water and the pressure difference between the foam solution, and the variation of this value is bigger to the influence of mixing ratio.The influence of (as the supply situation of water and foam solution etc.) because multiple factor, it is bigger that system's mixing ratio changes, and foam quality and fire extinguishing effect can be affected.
3) equalizing pressure proportioner.
The equalizing pressure proportioner is to utilize pressure balanced principle, control import hydraulic pressure and foam solution pressure reach pressure difference between the two, automatically keep desired mixing ratio in the certain flow scope, the equalizing pressure proportioner inlet pressure of different size is different with flow.The water inlet flow of equalizing pressure proportioner has a range of flow, if exceed this scope, deviation appears in the mixing ratio regular meeting, especially under the situation of low discharge.
4) tank bag type pressure proportional mixing arrangement.
Tank bag type pressure type proportion mixer comprises steel foam solution pressure vessel and two major parts of malleation proportioner of being with capsule, its principle is to utilize hydraulic pressure to make capsule deformation, the output foam solution is mixed into foam mixing liquid through pressure proportioner and water.By pressure difference value between controlled pressure water and the foam solution, keep the mixing ratio of the foam mixing liquid of output.When pressure reduction between press water and the foam solution changed fluctuation, the mixing ratio of foam mixing liquid had deviation.
The utility model content
The purpose of this utility model is at existing problem, provides a kind of mixed proportion accurate, stable positive-pressure automatic spume proportionality mixer systems.
Content of the present utility model is: a kind of positive-pressure automatic spume proportionality mixer systems, comprise pressure water line, foam line, and mixed pipe line, foam line begins to be provided with at least successively foam filter from foam tank, plunger displacement pump, foam control valve ball, check-valves, check-valves export pipeline and pressure water line converge to mixed pipe line, described mixed pipe line is provided with flow sensor, the lead that passes through of this flow sensor is connected to control module, be connected with parameter input and display module and electric machine controller under this control module, this electric machine controller is connected to and drives the plunger pump motor.
The signal that described flow sensor records passes to control module, and control module is through after calculating and comparing with the parameter of parameter input and display module input, and outgoing signal is given electric machine controller, and the electric machine controller drive motors is moving.
Comprise mixed proportion adjusting enter key and digital display screen on described parameter input and the display module.
This system's foam ratio adjustable range is 0.1%～1.0%, and regulating step-length is 0.1%.
The beneficial effects of the utility model
1, automation, accurate
The flow sensor that adopts in the positive-pressure automatic spume proportionality mixer systems of this utility model, control module, electric machine controller, motor, plunger displacement pump, the signal transmission that front and back link to each other forms a closed-loop control system, the flow signal of mixed pipe line can be real-time feed back to control module, and then adjust the foam piston revolution speed automatically, adjust foam and go out flow quantity, thereby realize the automation of adjusting; Because the flow in the mensuration mixed pipe line that the employing flow sensor can accurately quantize, and adopt the such precision element of plunger displacement pump to carry foam liquid, can further control the amount of carrying foam liquid accurately, thereby make the operation of whole system more accurate, and then regulate for the stable operation of whole closed-loop system and digitlization hardware foundation is provided.
2, simple to operate, reliable
Present many foam proportioning units still adopt manual control, and automaticity is not high, causes system's complicated operation, and the limitation that is subjected to system architecture that has is difficult for operating, and has greatly reduced the fire extinguishing operating efficiency.Native system only need just can be regulated the mixed proportion value by the mixed proportion adjusting key, and displaying ratio and mixed liquor flow number in real time, and operation is simple and reliable.
3, stable
System is according to the flow signal of mixed liquor pipeline, automatically control the electrical plunger pump rotating speed by microcomputer controlling module, foam in the injected system is changed with discharge, and the system that is to say can both realize that under different operating pressure, different output flow water, foam mix by the ratio value of setting.
Description of drawings
Fig. 1 is this utility model positive-pressure automatic spume proportionality mixer systems functional-block diagram
Fig. 2 is the syndeton schematic diagram in kind of Fig. 1
The specific embodiment
Embodiment: referring to Figure of description 1, Fig. 2, in Fig. 2,1 is that pressure water line, 2 is that foam line, 3 is that mixed pipe line, 4 is that foam tank, 5 is that foam filter, 6 is that motor, 7 is that electric machine controller, 8 is that control module, 9 is that parameter input and display module, 10 are that plunger displacement pump, 11 is that foam control valve, 12 is that check-valves, 13 is a flow sensor.
Positive-pressure automatic spume proportionality mixer systems among the figure, comprise pressure water line, foam line and mixed pipe line, foam line begins to be provided with at least successively foam filter, plunger displacement pump, foam control valve, check-valves from foam tank, check-valves export pipeline and pressure water line converge to mixed pipe line, described mixed pipe line is provided with flow sensor, the lead that passes through of this flow sensor is connected to control module, be connected with parameter input and display module and electric machine controller under this control module, this electric machine controller is connected to and drives the plunger pump motor.The signal that described flow sensor records passes to control module, and control module is through after calculating and comparing with the parameter of parameter input and display module input, and outgoing signal is given electric machine controller, and the electric machine controller drive motors is moving.Comprise mixed proportion adjusting enter key and digital display screen on described parameter input and the display module.This system's foam ratio adjustable range is 0.1%～1.0%, and regulating step-length is 0.1%.
This system can realize whole automation control mixed proportion, and simple to operate, regulate accurately, stable and reliable operation.
Claims (4)
1, a kind of positive-pressure automatic spume proportionality mixer systems, comprise pressure water line, foam line, and mixed pipe line, foam line begins to be provided with at least successively foam filter from foam tank, plunger displacement pump, foam control valve ball, check-valves, check-valves export pipeline and pressure water line converge to mixed pipe line, it is characterized in that: described mixed pipe line is provided with flow sensor, the lead that passes through of this flow sensor is connected to control module, be connected with parameter input and display module and electric machine controller under this control module, this electric machine controller is connected to and drives the plunger pump motor.
2, positive-pressure automatic spume proportionality mixer systems according to claim 1, it is characterized in that: the signal that described flow sensor records passes to control module, control module is through after calculating and comparing with the parameter of parameter input and display module input, outgoing signal is given electric machine controller, and the electric machine controller drive motors is moving.
3, positive-pressure automatic spume proportionality mixer systems according to claim 1 is characterized in that: comprise mixed proportion adjusting enter key and digital display screen on described parameter input and the display module.
4, positive-pressure automatic spume proportionality mixer systems according to claim 1 is characterized in that: this system's foam ratio adjustable range is 0.1%～1.0%, regulates step-length: 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201583558U CN201410247Y (en) | 2009-05-22 | 2009-05-22 | Positive pressure type automatic foam proportion mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201583558U CN201410247Y (en) | 2009-05-22 | 2009-05-22 | Positive pressure type automatic foam proportion mixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201410247Y true CN201410247Y (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201583558U Expired - Lifetime CN201410247Y (en) | 2009-05-22 | 2009-05-22 | Positive pressure type automatic foam proportion mixing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201410247Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549193B (en) * | 2009-05-22 | 2011-11-16 | 北京中卓时代消防装备科技有限公司 | Positive-pressure automatic spume proportionality mixer systems |
| CN110523029A (en) * | 2019-08-16 | 2019-12-03 | 国网江苏省电力有限公司 | The hybrid foam proportioning system of two-stage of oil-immersed transformer foam spray system |
| CN117427454A (en) * | 2023-12-20 | 2024-01-23 | 沧州临港天昭电材有限公司 | Chemical VOCs waste gas condensation treatment equipment |
-
2009
- 2009-05-22 CN CN2009201583558U patent/CN201410247Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549193B (en) * | 2009-05-22 | 2011-11-16 | 北京中卓时代消防装备科技有限公司 | Positive-pressure automatic spume proportionality mixer systems |
| CN110523029A (en) * | 2019-08-16 | 2019-12-03 | 国网江苏省电力有限公司 | The hybrid foam proportioning system of two-stage of oil-immersed transformer foam spray system |
| CN117427454A (en) * | 2023-12-20 | 2024-01-23 | 沧州临港天昭电材有限公司 | Chemical VOCs waste gas condensation treatment equipment |
| CN117427454B (en) * | 2023-12-20 | 2024-03-08 | 沧州临港天昭电材有限公司 | Chemical VOCs waste gas condensation treatment equipment |
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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 |
Granted publication date: 20100224 Effective date of abandoning: 20090522 |