CN201271446Y - Foam-mixing system with digital definite proportion - Google Patents
Foam-mixing system with digital definite proportion Download PDFInfo
- Publication number
- CN201271446Y CN201271446Y CNU2008202020071U CN200820202007U CN201271446Y CN 201271446 Y CN201271446 Y CN 201271446Y CN U2008202020071 U CNU2008202020071 U CN U2008202020071U CN 200820202007 U CN200820202007 U CN 200820202007U CN 201271446 Y CN201271446 Y CN 201271446Y
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- China
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- foaming agent
- flowmeter
- foam
- fixed
- blender
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a digital definite proportion foam mixed system, which comprises a foaming agent tank, a foaming agent pump, a prime mover, a first check valve, an electrically operated valve, a foaming agent flow meter, a second check valve, a mixer, a mixed liquid flow meter and a digital regulator; the foaming agent tank, the foaming agent pump, the first check valve, the electrically operated valve and the foaming agent flow meter are sequentially connected to a foaming agent incoming end of the mixer by pipelines; a water inlet end of the mixer is connected to a pressure water source of the second check valve by a pipeline, a foam mixed liquid output end pipeline of the mixer is connected with an input end of the mixed liquid flow meter, and an output end pipeline of the mixed liquid flow meter is connected to a foam mixed liquid pipe network; and the prime mover drives the foaming agent pump by means of mechanical connection, and the digital regulator is respectively connected with the mixed liquid flow meter, the foaming agent flow meter and the electrically operated valve by lines. The utility model is simple in structure, and can realize high-precision, direct and digital foam mixture according to the set proportion as required, and is the fire-fighting equipment with broad range of application.
Description
Technical field
The utility model belongs to the fire prevention field, and particularly a kind of numeral is fixed than foams mix system.
Background technology
Froth fire extinguishing system is categorized as by coefficient of foaming:
The low expansion foam fire extinguishing system is the fire extinguishing system that the general first-selection in the world today is used to produce, process, store, transport and use first, second, Class C liquid place, and becomes the fire-fighting that first, second, Class C liquid oil storage tank field and petrochemical plant district be easy to places such as leak already and mainly equip.
High multiple, medium expansion foam fire extinguishing system are put out category-A and category-B fire in the mode of total flooding and covering, can control the spill fire of liquefied petroleum gas, liquefied natural gas effectively.
High multiple, medium expansion foam fire extinguishing system also are mainly used in places such as the mine, large aircraft storehouse, garage, oil cellar, underground engineering, warehouse, boats and ships, industrial premises, oil depot oil storage tank in colliery.
Foam proportioning system is that water is mixed in proportion with foam solution, and produces the equipment that (generation) equipment and spraying equipment provide foam mixing liquid to foam.
The foam proportioning system of Shi Yonging now exists that the working flow scope is less, proporting system measures inaccurate defective, can not make foam produce optimum state, reaches best fire extinguishing operation.
The utility model content
The utility model at foam proportioning system in the prior art greatly the working flow scope solve the mixed proportion of accurately regulating foam and can not be at any time the technical problem of the mixed proportion of quick adjustment foam as required, provide a kind of numeral fixed than foams mix system.
The utility model can be solved by the following technical programs:
A kind of numeral is fixed than foams mix system, it is characterized in that comprising foaming agent jar, foaming agent pump, prime mover, first check-valves, motor-driven valve, foaming agent flowmeter, second check-valves, blender, mixed liquor flowmeter and digital regulated instrument; Blender is a three-port structure, comprises foaming agent incoming end, water inlet end and output; Described foaming agent jar, foaming agent pump, first check-valves, motor-driven valve, foaming agent flowmeter are connected to the foaming agent incoming end of blender successively with pipeline; The water inlet end of blender connects second check-valves to pressure water source with pipeline, and the foam mixing liquid output pipeline of blender connects the input of mixed liquor flowmeter, and mixed liquor flowmeter output pipeline is connected to the foam mixing liquid pipe network; Prime mover drives the foaming agent pump by mechanical connection; Digital regulated instrument connects real-time traffic signal that the mixed liquor flowmeter obtains foam mixing liquid, connects the foaming agent flowmeter and obtain real-time foaming agent flow feedback signal with circuit respectively; The flow regulating signal output of digital regulated instrument connects motor-driven valve.
Described foaming agent jar is a normal pressure foaming agent hold-up vessel.
Described foaming agent pump is vane pump or displacement pump, reciprocating type, the swinging of preferred tunable rotating speed, gear type isometric(al) pump.
Described prime mover can be motor, internal combustion engine, the hydraulic turbine, hydraulic motor etc.
Described motor-driven valve is electronic proportional control valve or electrohydraulic proportional control valve.
Described blender is the threeway foam mixer.
Described foaming agent flow is counted differential pressure type, electromagnetic type, positive displacement or ultrasonic type flowmeter.
Described mixed liquor flow is counted differential pressure type, electromagnetic type, positive displacement or ultrasonic type flowmeter.
Described digital regulated instrument is the general digital adjusting apparatus.
Compared with prior art, the utlity model has following advantage:
1, numeral described in the utility model is fixed guarantees extinguishing property than foams mix system in the working range of big flow.
2, the fixed mixed proportion that can accurately regulate foam than foams mix system of numeral described in the utility model, the foam of generation obtains optimum state, improves fire extinguishing effectiveness greatly.
3, numeral described in the utility model is fixed can be applicable to any fire foam than foams mix system, and can carry out ratio as required fast according to the character of fire foam at any time and regulate.
4, numeral described in the utility model is fixed can realize that than foams mix system press water really separates with foam solution, and what using, what just mix, and can not produce waste.
5, numeral described in the utility model is fixed can adopt the gerotor type foam liquid tank than foams mix system, low cost of manufacture, long service life.
6, numeral described in the utility model is fixed can overturn in the past water sprinkler system and the Design Mode that independently is provided with separately of foaming system than foams mix system, and two systems are united two into one, and system is simple and reliable, reduces investment outlay.
7, numeral described in the utility model is fixed adds the compressed-air foam that compressed air just can produce accurate mixed proportion than foams mix system.
8, numeral described in the utility model is fixed can constantly add foam solution than foams mix system applies normal pressure foam liquid tank in fire extinguishing procedure, attack time can constantly be prolonged, and has improved ability and reliability that fire extinguishing is combated a natural disaster greatly.
9, the fixed important fire-fighting equipments such as petrochemical enterprise, large-scale oil depot, oil jetty, hangar and offshore drilling platform that are applicable to than foams mix system of numeral described in the utility model.
10, the fixed foam firefighting equipment such as fixed, portable, boats and ships that can be applied to than foams mix system of numeral described in the utility model, application prospect is very extensive.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in Figure 1, the utility model comprises foaming agent jar 1, foaming agent pump 2, prime mover 3, first check-valves 4, motor-driven valve 5, foaming agent flowmeter 6, second check-valves 7, blender 8, mixed liquor flowmeter 9 and digital regulated instrument 10.Described foaming agent jar 1, foaming agent pump 2, first check-valves 4, motor-driven valve 5, foaming agent flowmeter 6 are connected to the foaming agent incoming end of blender 8 successively with pipeline.Blender 8 is a three-port structure, the water inlet end of blender 8 connects second check-valves 7 to pressure water source with pipeline, the foam mixing liquid output pipeline of blender 8 connects the input of mixed liquor flowmeter 9, and mixed liquor flowmeter 9 output pipelines are connected to the foam mixing liquid pipe network.Prime mover 3 drives foaming agent pump 2 by mechanical connection.Digital regulated instrument 10 connects real-time traffic signal that mixed liquor flowmeter 9 obtains foam mixing liquid, connects foaming agent flowmeter 6 and obtain real-time foaming agent flow feedback signal with circuit respectively; The flow regulating signal output of digital regulated instrument 10 connects motor-driven valve 5.
Operation principle of the present utility model is: as shown in Figure 1, the real-time usage that mixed liquor flowmeter 9 measures foam mixing liquid is Q[Q=Q
1+ Q
2(l/min)], Q
1Be the flow of foam solution, Q
2Be the flow of press water, simultaneously the Q flow signal be sent to digital regulated instrument 10.Digital regulated instrument 10 is set foams mix ratio X[X=Q1/Q according to demand
1(%)], to calculate the consumption of foam solution immediately be Q to digital regulated instrument 10
1[Q1=QX (l/min)] is simultaneously with Q
1Parameter is output as motor-driven valve 5 aperture signals after the P.I.D computing.Foaming agent flowmeter 6 measures the real-time traffic feedback signal of foaming agent and is sent to digital regulated instrument 10 simultaneously, and digital regulated instrument 10 contrasts and corresponding adjustment output parameter immediately, regulates motor-driven valve 5 apertures.Thereby obtain accurate foams mix ratio X.
Claims (8)
1, a kind of numeral is fixed than foams mix system, it is characterized in that comprising foaming agent jar (1), foaming agent pump (2), prime mover (3), first check-valves (4), motor-driven valve (5), foaming agent flowmeter (6), second check-valves (7), blender (8), mixed liquor flowmeter (9) and digital regulated instrument (10); Blender (8) is a three-port structure, comprises foaming agent incoming end, water inlet end and output; Described foaming agent jar (1), foaming agent pump (2), first check-valves (4), motor-driven valve (5), foaming agent flowmeter (6) are connected to the foaming agent incoming end of blender (8) successively with pipeline; The water inlet end of blender (8) connects second check-valves (7) to pressure water source with pipeline, the foam mixing liquid output pipeline of blender (8) connects the input of mixed liquor flowmeter (9), and mixed liquor flowmeter (9) output pipeline is connected to the foam mixing liquid pipe network; Prime mover (3) drives foaming agent pump (2) by mechanical connection; Digital regulated instrument (10) connects real-time traffic signal that mixed liquor flowmeter (9) obtains foam mixing liquid, connects foaming agent flowmeter (6) and obtain real-time foaming agent flow feedback signal with circuit respectively; The flow regulating signal output of digital regulated instrument (10) connects motor-driven valve (5).
2, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described foaming agent jar (1) is a normal pressure foaming agent hold-up vessel.
3, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described foaming agent pump (2) is vane pump or displacement pump.
4, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described prime mover (3) is motor, internal combustion engine, the hydraulic turbine or hydraulic motor.
5, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described motor-driven valve (5) is electronic proportional control valve or electrohydraulic proportional control valve.
6, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described blender (8) is the threeway foam mixer.
7, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described foaming agent flowmeter (6) is differential pressure type, electromagnetic type, positive displacement or ultrasonic type flowmeter.
8, numeral according to claim 1 is fixed than foams mix system, it is characterized in that described mixed liquor flowmeter (9) is differential pressure type, electromagnetic type, positive displacement or ultrasonic type flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202020071U CN201271446Y (en) | 2008-10-17 | 2008-10-17 | Foam-mixing system with digital definite proportion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202020071U CN201271446Y (en) | 2008-10-17 | 2008-10-17 | Foam-mixing system with digital definite proportion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201271446Y true CN201271446Y (en) | 2009-07-15 |
Family
ID=40881799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202020071U Expired - Lifetime CN201271446Y (en) | 2008-10-17 | 2008-10-17 | Foam-mixing system with digital definite proportion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201271446Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977740A (en) * | 2014-05-30 | 2014-08-13 | 佛山市海天(高明)调味食品有限公司 | Material mixing system |
| CN112412395A (en) * | 2020-12-01 | 2021-02-26 | 中国石油天然气集团有限公司 | High-pressure gas-liquid mixing injection control system |
| CN113769300A (en) * | 2021-03-19 | 2021-12-10 | 湖南新永利交通科工贸有限公司 | Vehicle-mounted high-flow foam proportional mixing system |
-
2008
- 2008-10-17 CN CNU2008202020071U patent/CN201271446Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977740A (en) * | 2014-05-30 | 2014-08-13 | 佛山市海天(高明)调味食品有限公司 | Material mixing system |
| CN112412395A (en) * | 2020-12-01 | 2021-02-26 | 中国石油天然气集团有限公司 | High-pressure gas-liquid mixing injection control system |
| CN113769300A (en) * | 2021-03-19 | 2021-12-10 | 湖南新永利交通科工贸有限公司 | Vehicle-mounted high-flow foam proportional mixing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |