CN201921361U - Automatic foam fire extinguisher - Google Patents
Automatic foam fire extinguisher Download PDFInfo
- Publication number
- CN201921361U CN201921361U CN2010207004941U CN201020700494U CN201921361U CN 201921361 U CN201921361 U CN 201921361U CN 2010207004941 U CN2010207004941 U CN 2010207004941U CN 201020700494 U CN201020700494 U CN 201020700494U CN 201921361 U CN201921361 U CN 201921361U
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- CN
- China
- Prior art keywords
- foam
- proportioner
- water supply
- inlet
- gear pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to the field of fire extinguishment and discloses an automatic foam fire extinguisher. The automatic foam fire extinguisher is characterized by comprising a PLC (Programmable Logic Controller), a proportioner, a water supply pipe which connected with a water inlet of the proportioner and a foam pipe which is connected with a foam inlet of the proportioner, wherein a gear pump which comprises a driving motor is arranged on the foam pipe; the driving motor is connected with a frequency converter; a foam flow sensor is arranged at the outlet of the gear pump; a water supply flow sensor is arranged on the water supply pipe; and the input end of the PLC is respectively and electrically connected with the foam flow sensor and the water supply flow sensor, while the output end of the PLC is electrically connected with a frequency control end of the frequency converter.
Description
Technical field
The utility model relates to the fire-fighting fire extinguishing field, particularly a kind of automatic bubble extinguishing device.
Background technology
In foam fire fighting system, generally adopt proportioner to realize the mixing of water and foam solution, mixing ratio requires to be controlled in the scope of 3%-3.9% or 6%-6.9%.At present, there are shortcomings such as reaction speed is slow, control accuracy is low, the operation interval of flow is little in pressure of storage tank formula proportioner both domestic and external, suction type proportioner and balance type proportioning mixer in the control mixing ratio, for example: the reaction speed of proportioner is slow (when every table apparatus dispatches from the factory, all need to carry out the adjustment of flow and orifice plate), mixing ratio control accuracy low (reaching the scope of 3.9%-4% or 5.9%-7.1% sometimes), the little (30%Q of the operation interval of flow
Volume-100%Q
Volume).
Traditional foam fire fighting system can not satisfy the quantity delivered requirement of extensive foam firefighting engineering to foam mixing liquid, can not satisfy because the requirement of the mixed proportion of water and foam solution is followed the tracks of in the pressure of water supply network and the fluctuation of flow fast.
Summary of the invention
At above problem, the purpose of this utility model is to provide a kind of automatic bubble extinguishing device, can realize the rapid adjustment of foam solution mixing ratio, and the wide ranges of control accuracy height, flow-control, is applicable to that the big flow of foam mixing liquid is supplied with.
In order to achieve the above object, the utility model is achieved by the following technical solutions.
A kind of automatic bubble extinguishing device is characterized in that, comprises the PLC controller, proportioner, the foam line that supply channel that the water inlet of connection proportioner enters the mouth and the foam that is connected proportioner enter the mouth; Described foam line is provided with gear pump, and gear pump has a drive motors, and drive motors connects a frequency converter; Described gear pump outlet is provided with a foam stream quantity sensor, and a water supply flow sensor is set on the supply channel; The input of described PLC controller is electrically connected foam stream quantity sensor and water supply flow sensor respectively, and its output is electrically connected the frequency control terminal of frequency converter.
Further improvement of the utility model and characteristics are:
The foam inlet of described proportioner is provided with the foam check-valves.
Described supply channel is provided with feed-check valve.
The foam inlet of described proportioner, water supply inlet and mixture export are respectively arranged with the pressure sensor of the input that is connected the PLC controller.
In the utility model, adopt the PLC controller to gather water supply flow and foam flow, with the water supply flow is benchmark, calculate the foam flow, then by controlling frequency converter, motor, gear pump successively, can realize the accurately control fast of mixing ratio along with the fluctuation of the pressure of water supply network and flow, be applicable to that the big flow of foam mixing liquid is supplied with, can satisfy extensive foam firefighting engineering.Of the present utility model being also advantageous in that, mixing ratio can be set by the PLC controller is convenient, can adapt to the change of foam solution kind and concentration, and device hardware need not change or adjust.
Description of drawings
Fig. 1 is the structural principle schematic diagram of a kind of automatic bubble extinguishing device of the present utility model;
Among the figure: 1, foam line; 2, supply channel; 3, mixed liquor pipeline; 4, ball valve; 5, motor; 6, gear pump; 7, foam stream quantity sensor; 8, foam pressure sensor; 9, foam check-valves; 10, water supply butterfly valve; 11, feed-check valve; 12, water supply flow sensor; 13, pressure of supply water sensor; 14, pressure of supply water sensor.
The specific embodiment
With reference to Fig. 1,, mainly comprise foam solution case, PLC controller, frequency converter, motor 5, gear pump 6, proportioner for a kind of automatic bubble extinguishing device of the present utility model.Wherein, connect foam line 1 between the foam of proportioner inlet and the foam solution case, foam line 1 sets gradually ball valve 4, gear pump 6, foam stream quantity sensor 7, foam pressure sensor 8 and foam check-valves 9 along its flow direction; The water supply inlet of proportioner connects supply channel 2, and supply channel 2 sets gradually water supply butterfly valve 10, feed-check valve 11, water supply flow sensor 12 and pressure of supply water sensor 13 along its flow direction; The mixture export of proportioner connects mixed liquor pipeline 3, and mixed liquor pressure sensor 14 is set.
The input of PLC controller is electrically connected foam stream quantity sensor 7 and water supply flow sensor 10 respectively, and its output is electrically connected the frequency control terminal of frequency converter, and frequency converter is electrically connected motor 5, motor 5 gear pump 6 that is in transmission connection.The PLC controller is gathered water supply flow and foam flow, is benchmark with the water supply flow, calculates the foam flow, logical then control frequency converter changes the frequency of motor, adjust the rotating speed of motor, and then the foam flow of control gear pump, accurate mixing ratio guaranteed by control foam flow.
In the present embodiment, the PLC controller is also gathered the data (not shown) of foam pressure sensor, pressure of supply water sensor, mixed liquor pressure sensor, be used to monitor the foam inlet of proportioner, the pressure of supply water inlet and mixture export, to guarantee the normal operation of this device.
Claims (4)
1. an automatic bubble extinguishing device is characterized in that, comprises the PLC controller, proportioner, the foam line that supply channel that the water inlet of connection proportioner enters the mouth and the foam that is connected proportioner enter the mouth; Described foam line is provided with gear pump, and gear pump has a drive motors, and drive motors connects a frequency converter; Described gear pump outlet is provided with a foam stream quantity sensor, and a water supply flow sensor is set on the supply channel; The input of described PLC controller is electrically connected foam stream quantity sensor and water supply flow sensor respectively, and its output is electrically connected the frequency control terminal of frequency converter.
2. automatic bubble extinguishing device according to claim 1 is characterized in that, the foam inlet of described proportioner is provided with the foam check-valves.
3. automatic bubble extinguishing device according to claim 1 is characterized in that described supply channel is provided with feed-check valve.
4. automatic bubble extinguishing device according to claim 1 is characterized in that, the foam inlet of described proportioner, water supply inlet and mixture export are respectively arranged with the pressure sensor of the input that is connected the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010207004941U CN201921361U (en) | 2010-12-31 | 2010-12-31 | Automatic foam fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010207004941U CN201921361U (en) | 2010-12-31 | 2010-12-31 | Automatic foam fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921361U true CN201921361U (en) | 2011-08-10 |
Family
ID=44425236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010207004941U Expired - Lifetime CN201921361U (en) | 2010-12-31 | 2010-12-31 | Automatic foam fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080908A (en) * | 2017-04-20 | 2017-08-22 | 湖南省湘电试研技术有限公司 | Mesohigh water mist system is used in a kind of outdoor transformer live-wire fire fighting, cooling and cleaning three |
| 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 |
-
2010
- 2010-12-31 CN CN2010207004941U patent/CN201921361U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080908A (en) * | 2017-04-20 | 2017-08-22 | 湖南省湘电试研技术有限公司 | Mesohigh water mist system is used in a kind of outdoor transformer live-wire fire fighting, cooling and cleaning three |
| 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |
|
| CX01 | Expiry of patent term |