CN202005967U - Full-automatic foam proportioner - Google Patents
Full-automatic foam proportioner Download PDFInfo
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- CN202005967U CN202005967U CN2011200795547U CN201120079554U CN202005967U CN 202005967 U CN202005967 U CN 202005967U CN 2011200795547 U CN2011200795547 U CN 2011200795547U CN 201120079554 U CN201120079554 U CN 201120079554U CN 202005967 U CN202005967 U CN 202005967U
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- 239000006260 foam Substances 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000009466 transformation Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a full-automatic foam proportioner belonging to fire fighting equipment. The full-automatic foam proportioner structurally comprises a main control circuit, a valve control circuit and a signal acquisition circuit, wherein the main control circuit mainly comprises a main controller U1; the valve control circuit comprises a valve control module, a foam proportion control valve and a valve current detection circuit; the signal acquisition circuit mainly comprises a signal acquisition module and a sensor; and the sensor comprises a water flow sensor, a foam flow sensor, a low-level sensor and a coefficient fine-tuning knob. The full-automatic foam proportioner has the advantages as follows: the foam proportioner has the functions of adjusting foam proportion accurately, supporting pipes with various diameters, protecting the power supply, monitoring foam lack intelligently and the like; the system can be controlled through two modes including the full-automatic foam proportion mode and the hand-operated foam proportion mode; the system is operated conveniently and easily, and can run stably for a long time; and the display is clear and intuitional.
Description
Technical field
The utility model relates to electrical category, particularly a kind of full-automatic foam proportioner that is applied to the foam ratio hybrid control system of fire fighting truck.
Background technology
Foam fire-fighting is common a kind of fire-fighting mode in the fire-fighting fight, in the fire-fighting fight of using foam fire-fighting, to note the mixed proportion of foam and water constantly, also is different at the different types of foam of fire fighting to the requirement of mixed proportion, and the quality that the foam ratio is mixed is directly connected to the efficient and even the success or failure of foam fire-fighting.Therefore our needs one cover can be accurately, and the full-automatic foam proportioner of adjusting the foams mix ratio easily guarantees carrying out smoothly of fire-fighting fight.
The foam proportioner that present most of fire fighting truck adopts mostly is mechanical type control, can only switch at 3% and 6%, can not regulate more accurately.And desired optimum mixture ratio example value is different during for different foam fire-fighting, and mechanical type foams mix proportional controller can't adapt to different foams.Because the state of this type of device and parameter demonstration are very simple, can't monitor and accurately check system mode and various data parameters in real time simultaneously.
Summary of the invention
Problems such as the purpose of this utility model is to provide a kind of full-automatic foam proportioner, and the foam that has solved existing hybrid control system existence is littler than adjustable range, accuracy is not high, can not in time point out when lacking foam.
The utility model technical solution problem adopts technical scheme to be:
The full-automatic foam proportioner comprises main control circuit 1, valve controling circuit 2, signal acquisition circuit 3 and is arranged at the power protecting circuit (4) of controller prime that wherein, described main control circuit 1 is made of master controller MCU microprogram control unit U1; Valve controling circuit 2 comprises valve control module 21, foam proportional control valve 22 and valve current detection module 23; Signal acquisition circuit 3 is made up of signal acquisition module U2 and external sensor, and this external sensor comprises water flow sensor 31, foam stream quantity sensor 32, low liquid level sensor 33 and coefficient vernier knob 34;
Adopt communication modes to carry out transfer of data between described MCU microprogram control unit U1 and the signal acquisition module U2, water flow sensor 31, foam stream quantity sensor 32, low liquid level sensor 33 are connected with this signal acquisition module U2 respectively with coefficient vernier knob 34; The Open_1 of valve control module 21, Close_1, full-open_1, full-close_1 port are connected with P1.0, P1.1, P1.2, the P1.3 pin of MCU microprogram control unit U1 respectively; The A of valve control module 21, B, C, D end link to each other with Open, Close, full-open, the full-close end of foam proportional control valve 22 respectively; Valve current detection module 23 comprises amplifier U3, sampling resistor R1, gain resistor R2, R3,5 pin of foam proportional control valve 22 are connected with the IN pin of amplifier U3, the Motor Current pin of amplifier U3 is connected with the AD pin of MCU microprogram control unit U1, the MCU microprogram control unit U1 data that sampling obtains according to AD and the value of resistance R 1 calculate foam proportioning valve size of current, have realized the real-time monitoring to the valve electric current.
Described power protecting circuit 4 is made up of electric current and voltage holding circuit 41 and voltage conversion circuit 42, electric current and voltage holding circuit 41 is made up of diode D1, overvoltage and low-voltage variation module 43, overcurrent protection module 44, positive source from chassis battery 45 is connected with diode D1 anode, the negative electrode of diode D1 is connected with low-voltage variation module 43 with overvoltage, and this overvoltage directly is connected with overcurrent protection module 44 with low-voltage variation module 43; Overcurrent protection module 44 is connected with voltage transformation module 46, and the OUT5V of voltage transformation module 46 links to each other with IN12V with the IN5V of power supply output 47 respectively with OUT12V.When supply voltage and electric current change and exceed overvoltage and the desired range circuit of overcurrent protection module can be cut off the electricity supply automatically, thereby protect entire circuit effectively.Power supply enters the voltage transformation module after handling through holding circuit; the voltage transformation module converts magnitude of voltage respectively to and is sent to power output end respectively behind 5V and the 12V and provides operating voltage for related circuit, and the OUT5V of voltage transformation module links to each other with IN12V with the IN5V of power supply output respectively with OUT12V.
The beneficial effects of the utility model are: have accurate ratio and regulate, support multiple caliber, power protection, intelligence to lack functions such as foam monitoring.Can adopt adjusting of full-automatic foam ratio or manual foam ratio to regulate two kinds of patterns of pattern system is controlled, system is easy and simple to handle understandable, and clear display is directly perceived, but long-time steady operation.System adopts closed-loop control, makes the foam ratio value can be controlled at the setting value place exactly, when the foam ratio of reality changes, can automatically regulate the foam proportioning valve in order to keep the foam ratio value system that sets.The utlity model has effective power protection mechanism, is benchmark with chassis battery 28V, its fluctuation range-35%～+ 21%(is 18V-34V) this product all can operate as normal, this product will cut off the power supply automatically and guarantee device security when fluctuation exceeds this scope.Reversal of power is withstand voltage up to 1000V, therefore can not cause damage to system when the power supply reversal connection.Support 4 kinds of calibers: less than 80mm, 80mm, 100mm, greater than 100mm, when caliber was non-standard (less than 80mm or greater than 100mm), signal acquisition module was provided with the knob that discharge is demarcated.So just increased the scope that to use caliber.Have perfect monitoring and protecting function, when lacking situation such as foam at discharge, foam Traffic Anomaly, foam tank and taking place, can start defence program fast and report to the police and remind the operator.
The utility model is a most perfect present full-automatic foam proportioner, and this product price ratio is very high, is fit to very much equipment China fire brigade.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model;
Fig. 2 is a block diagram of the present utility model;
Fig. 3 is power protecting circuit figure of the present utility model;
Fig. 4 is a system architecture schematic diagram of the present utility model.
The specific embodiment
Embodiment:
Referring to Fig. 1 and Fig. 2, the utility model full-automatic foam proportioner comprises main control circuit 1, valve controling circuit 2, signal acquisition circuit 3 and is arranged at the power protecting circuit (4) of controller prime, wherein, described main control circuit 1 is made of master controller MCU microprogram control unit U1; Valve controling circuit 2 comprises valve control module 21, foam proportional control valve 22 and valve current detection module 23; Signal acquisition circuit 3 is made up of signal acquisition module U2 and external sensor, and this external sensor comprises water flow sensor 31, foam stream quantity sensor 32, low liquid level sensor 33 and coefficient vernier knob 34;
Adopt communication modes to carry out transfer of data between described MCU microprogram control unit U1 and the signal acquisition module U2, water flow sensor 31, foam stream quantity sensor 32, low liquid level sensor 33 are connected with this signal acquisition module U2 respectively with coefficient vernier knob 34; The Open_1 of valve control module 21, Close_1, full-open_1, full-close_1 port are connected with P1.0, P1.1, P1.2, the P1.3 pin of MCU microprogram control unit U1 respectively; The A of valve control module 21, B, C, D end link to each other with Open, Close, full-open, the full-close end of foam proportional control valve 22 respectively; Valve current detection module 23 comprises amplifier U3, sampling resistor R1, gain resistor R2, R3,5 pin of foam proportional control valve 22 are connected with the IN pin of amplifier U3, the Motor Current pin of amplifier U3 is connected with the AD pin of MCU microprogram control unit U1, the MCU microprogram control unit U1 data that sampling obtains according to AD and the value of resistance R 1 calculate foam proportioning valve size of current, have realized the real-time monitoring to the valve electric current.
Shown in accompanying drawing 3, power protecting circuit 4 of the present utility model is made up of electric current and voltage holding circuit 41 and voltage conversion circuit 42, electric current and voltage holding circuit 41 is made up of diode D1, overvoltage and low-voltage variation module 43, overcurrent protection module 44, positive source from chassis battery 45 is connected with diode D1 anode, the negative electrode of diode D1 is connected with low-voltage variation module 43 with overvoltage, and this overvoltage directly is connected with overcurrent protection module 44 with low-voltage variation module 43; Overcurrent protection module 44 is connected with voltage transformation module 46, and the OUT5V of voltage transformation module 46 links to each other with IN12V with the IN5V of power supply output 47 respectively with OUT12V.When supply voltage and electric current change and exceed overvoltage and the desired range circuit of overcurrent protection module can be cut off the electricity supply automatically, thereby protect entire circuit effectively.Power supply enters the voltage transformation module after handling through holding circuit; the voltage transformation module converts magnitude of voltage respectively to and is sent to power output end respectively behind 5V and the 12V and provides operating voltage for related circuit, and the OUT5V of voltage transformation module links to each other with IN12V with the IN5V of power supply output respectively with OUT12V.
Referring to shown in Figure 4, system adopts traditional circular pump type Venturi tube mode, and on foam line, install foam ratio adjusting valve A1 and foam flowmeter A2 additional, water flow sensor 31 is housed on outlet pipeline A3, the ratio of foam flow and discharge is actual foams mix ratio, foam proportional controller A regulates the aperture of valve according to the result that the foams mix ratio value and the preset value of reality compares, thereby obtains required foams mix ratio value.Be inhaled into entry pipeline A6 through Venturi tube A5 after foam solution among the foam tank A4 flows in the foam line and mix with water, foam and water enter outlet pipeline A3 after being mixed fully in water pump A7, and then have finished the adjusting of foams mix ratio.
As shown in Figure 1, signal acquisition module U2 gathers foam flow and discharge etc., and send to the MCU microprogram control unit U1 of console controller after the data that collect are calculated, MCU microprogram control unit U1 is real-time foams mix ratio value with foam stream value and the current value work that receives than the data that obtain, and console controller MCU microprogram control unit U1 carries out corresponding action to foam proportion control valve as the case may be simultaneously.System has two kinds to the control model of foams mix proportioning valve: a kind of is automatic control mode, and another kind is manual control model, and operating personnel select mode of operation by guidance panel.
Automatic control mode: automatic control mode is by control panel required foams mix ratio value to be set, the MCU microprogram control unit U1 of console controller compares predefined foams mix ratio value record storage back and current real-time foams mix ratio value, the foundation of regulating as the foam proportioning valve.The real-time foams mix ratio value that receives as the MCU of console controller microprogram control unit U1 is greater than (perhaps less than) predefined foams mix ratio value, in order to make the foams mix ratio value maintain the preset value place, the MCU microprogram control unit U1 of console controller is according to the size of actual conditions control foam proportioning valve aperture.This moment, shown foam ratio value was predefined foams mix ratio value.
Manual control model: manually control model is to control the aperture of foam proportional control valve 22 by operation control panel.Under manual mode, when the MCU of console controller microprogram control unit U1 detected the operational order of increase (perhaps reducing) foam proportioning valve, the MCU microprogram control unit U1 of console controller sent the order of controlling opening of valve immediately to the foam proportion valve.After stopping key, the MCU microprogram control unit U1 of console controller will no longer send the control valve order, and the foams mix ratio value that show this moment is real-time foams mix ratio value.
The utility model is equipped with low liquid level sensor 33 in foam tank, can be low at up demonstration " ERR " prompting froth level when system detects foam and is about to exhaust.
Claims (2)
1. full-automatic foam proportioner, it is characterized in that: comprise main control circuit (1), valve controling circuit (2), signal acquisition circuit (3) and be arranged at the power protecting circuit (4) of controller prime, wherein, described main control circuit (1) is made of master controller MCU microprogram control unit (U1); Valve controling circuit (2) comprises valve control module (21), foam proportional control valve (22) and valve current detection module (23); Signal acquisition circuit (3) is made up of signal acquisition module (U2) and external sensor, and this external sensor comprises water flow sensor (31), foam stream quantity sensor (32), low liquid level sensor (33) and coefficient vernier knob (34);
Adopt communication modes to carry out transfer of data between described MCU microprogram control unit (U1) and the signal acquisition module (U2), water flow sensor (31), foam stream quantity sensor (32), low liquid level sensor (33) are connected with this signal acquisition module (U2) respectively with coefficient vernier knob (34); Open_1, the Close_1 of valve control module (21), full-open_1, full-close_1 port are connected with P1.0, P1.1, P1.2, the P1.3 pin of MCU microprogram control unit (U1) respectively; A, the B of valve control module (21), C, D end link to each other with Open, Close, full-open, the full-close end of foam proportional control valve (22) respectively; Valve current detection module (23) comprises amplifier (U3), sampling resistor (R1), gain resistor (R2), (R3), 5 pin of foam proportional control valve (22) are connected with the IN pin of amplifier (U3), and the Motor Current pin of amplifier (U3) is connected with the AD pin of MCU microprogram control unit (U1).
2. full-automatic foam proportioner according to claim 1, it is characterized in that: described power protecting circuit (4) is made up of electric current and voltage holding circuit (41) and voltage conversion circuit (42), electric current and voltage holding circuit (41) is by diode (D1), overvoltage and low-voltage variation module (43), overcurrent protection module (44) is formed, the positive source of battery (45) is connected with diode (D1) anode, the negative electrode of diode (D1) is connected with low-voltage variation module (43) with overvoltage, and this overvoltage directly is connected with overcurrent protection module (44) with low-voltage variation module (43); Overcurrent protection module (44) is connected with voltage transformation module (46), and the OUT5V of voltage transformation module (46) links to each other with IN12V with the IN5V of power supply output (47) respectively with OUT12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200795547U CN202005967U (en) | 2011-03-24 | 2011-03-24 | Full-automatic foam proportioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200795547U CN202005967U (en) | 2011-03-24 | 2011-03-24 | Full-automatic foam proportioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202005967U true CN202005967U (en) | 2011-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200795547U Expired - Lifetime CN202005967U (en) | 2011-03-24 | 2011-03-24 | Full-automatic foam proportioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202005967U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495644A (en) * | 2011-11-30 | 2012-06-13 | 中国科学院自动化研究所 | Compression air foam mixed control system of fire truck |
| CN103816633A (en) * | 2014-02-26 | 2014-05-28 | 上海博灿信号设备有限公司 | Intelligent proportionally-mixing system for foam |
| CN106730545A (en) * | 2016-12-26 | 2017-05-31 | 威特龙消防安全集团股份公司 | Fine water mist fire-extinguishing system additive measures injected system |
| CN110279973A (en) * | 2019-07-11 | 2019-09-27 | 北京中卓时代消防装备科技有限公司 | A kind of froth fire extinguishing system testing inspection platform |
-
2011
- 2011-03-24 CN CN2011200795547U patent/CN202005967U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495644A (en) * | 2011-11-30 | 2012-06-13 | 中国科学院自动化研究所 | Compression air foam mixed control system of fire truck |
| CN102495644B (en) * | 2011-11-30 | 2014-02-12 | 中国科学院自动化研究所 | Compression air foam mixed control system of fire truck |
| CN103816633A (en) * | 2014-02-26 | 2014-05-28 | 上海博灿信号设备有限公司 | Intelligent proportionally-mixing system for foam |
| CN103816633B (en) * | 2014-02-26 | 2016-06-29 | 上海博灿信号设备有限公司 | Intelligent foam proportioning system |
| CN106730545A (en) * | 2016-12-26 | 2017-05-31 | 威特龙消防安全集团股份公司 | Fine water mist fire-extinguishing system additive measures injected system |
| CN106730545B (en) * | 2016-12-26 | 2020-05-19 | 威特龙消防安全集团股份公司 | Additive metering injection system of water mist fire extinguishing system |
| CN110279973A (en) * | 2019-07-11 | 2019-09-27 | 北京中卓时代消防装备科技有限公司 | A kind of froth fire extinguishing system testing inspection platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changchun Forman fire fighting equipment Co., Ltd. Assignor: Li Chunxu Contract record no.: 2015220000014 Denomination of utility model: Full-automatic foam proportioner Granted publication date: 20111012 License type: Exclusive License Record date: 20150513 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170713 Address after: High tech Zone of Jilin province Changchun Zhenyu street 130012 No. 358 building 3 floor 2 C zone Patentee after: Changchun Forman Electric Control Technology Co., Ltd. Address before: 130000 Sunshine Plaza, Sunshine Plaza, Qianjin square, Changchun, Jilin 3-2-204 Patentee before: Li Chunxu |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |