CN101401990B - Foam spray fire extinguisher - Google Patents
Foam spray fire extinguisher Download PDFInfo
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- CN101401990B CN101401990B CN200810180136XA CN200810180136A CN101401990B CN 101401990 B CN101401990 B CN 101401990B CN 200810180136X A CN200810180136X A CN 200810180136XA CN 200810180136 A CN200810180136 A CN 200810180136A CN 101401990 B CN101401990 B CN 101401990B
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- fire extinguisher
- foam spray
- main transformer
- spray fire
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Abstract
The invention discloses a foam spray fire extinguisher, which consists of a temperature probe, a temperature compensation line, a heat exchange box, a heat exchanger and a temperature control module assembled in the heat exchange box, a PLC and a human-computer interface assembled in a fire-fighting control cabinet. Each temperature probe is arranged at the joint of a high-pressure bushing and a main transformer and is connected with the heat exchanger in the heat exchange box by the temperature compensation line. Because the temperature probe of the foam spray fire extinguisher is fixed at the root of the high-pressure bushing on the surface of the main transformer, the foam spray fire extinguisher has high temperature detecting and measuring precision, and can display the surface temperature of the main transformer by a digital mode to be observed conveniently. The foam spray fire extinguisher has the advantages of simple structure, high reliability and convenient use and maintenance, and provides reliable protective measure for the running of the transformer.
Description
Technical field
The present invention relates to a kind of fire extinguisher, refer in particular to special-purpose foam spray fire extinguisher into fire-fighting fire extinguishings such as oil immersed power transformer, Oil-burning Boiler Room, fuel electric generator room, small-sized oil storage tank, kart storehouse, small-sized freight car temporary repairing shed, small-sized oil depots.
Background technology
At present, the fixed extinguishing system of domestic transformer adopting mainly is a water spray fire extinguish system, and this is to be applied to outdoor large transformer fire-fighting a kind of fixed extinguishing system the earliest.This system is by underground conservation pool, intake pipe, fire pump, descend fire chief net, water spray by-pass valve control, transformer water atomizing standpipe, horizontal branch pipe, atomizer, starting mode of pump control and protective device etc. to form annularly.In the winter of cold, the water capacity in the water tower is easily frozen and the bursting by freezing pipeline, because variable frequency pump is in the speed governing operating condition all the time, because of impurity in the water weares and teares very big to pump, compare with the variable frequency pump in the running water system, supporting fire supply system such as water pump, pipe network takes up an area of greatly, cost is high, and the regular maintenance management also bothers.What at present general control mode adopted is that temperature sensing cable is wrapped on the transformer body, temperature feedback signal by temperature sensing cable is given fire alarm control unit, the shortcoming of this kind mode is because the maintainer steps on temperature sensing cable when overhauling main transformer disconnected easily, as fail in time to find, can the safety of main transformer be constituted a threat to.Research and develop a kind of simple in structurely, it is necessary that the user can come the different novel fire-fighting system of flexible combination with protection domain according to the fire type of protected body.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of foam spray fire extinguisher, and this foam spray fire extinguisher is simple in structure, make up flexible and changeable, wide, the anti-adverse environment, convenient for installation and maintenance of its temp probe monitoring range.
The present invention will separate fast technical problem and be realized by following scheme: foam spray fire extinguisher, form by temp probe (the electric group of PT100), temperature-compensating line, the warm man-machine interface that becomes case, is assemblied in the temperature transmitter in the temperature change case and controls thermal module, PLC, is assemblied in the Fire Control Cabinet.Described 4-10 temp probes are installed in the junction of bushing and main transformer, and every temp probe is coupled together by temperature-compensating line and the temperature change device that is contained in the temperature change case.Temp probe is surveyed the main transformer temperature constantly, and the temperature compensated line of the temperature that detects sent to be contained in the temperature that temperature becomes in the case and become device, temperature becomes the current signal that device is converted into the temperature and resistance signal 4～20MA, be sent in the main transformer switch board in the temperature special module on the PLC, be sent to through PLC on the man-machine interface of switch board, a plurality of temperature sensing points of main transformer are carried out whole day monitoring in 24 hours.
Report by mistake in monitoring temperature in order to prevent temp probe, taked comparison program in the PLC program in switch board to rate of temperature change, when any one temp probe changes above fiducial value suddenly, system will point out by fault alarm, and when any temp probe damages, the temperature of probe detection or be maximum perhaps be minimum, and that passes through comparison program more all can fault alarm.In comparison program to before the main transformer 1S and 1S after its rate of change of temperature comparison must not exceed 5 ℃.
The present invention also comprises following scheme: described temp probe is contained in the waterproof safety cover, and at waterproof mounting cup external welding stainless steel brace, the stainless steel brace is fixed on the bushing root of main transformer by the Luo bolt.Main transformer moves in the open, and be contained in temperature and become temperature in the case and become actuator temperature and be controlled in-50～150 ℃ of scopes, ℃ be 4MA promptly-50, in the time of 150 ℃ 20MA.When the main transformer generation condition of a fire, since the position at easy firing place just with the junction of bushing, when being installed in many temp probes herein any temperature and surpassing 150 ℃ of design temperatures, will send sound and light alarm in the Fire Control Cabinet, after main transformer high-pressure side, medium voltage side, low-pressure side outage, can start froth fire extinguishing system main transformer is carried out quick extinguishing.
Advantage of the present invention is: foam spray fire extinguisher is simple in structure, reliability is high, working service is convenient, for the transformer operation provides reliable protective measure.
Because the temp probe of foam spray fire extinguisher is fixed on the root of main transformer surface high pressure sleeve pipe, its heat detection certainty of measurement height can show the main transformer surface temperature with digital form, is convenient to observe.The temp probe monitoring range is wide, anti-adverse environment, convenient for installation and maintenance.
Riches all the way arbitrarily when giving birth to fault when the point type temp probe, can pass through touch screen operation, it is masked, and do not participate in measuring warning, but this do not influence other detection circuit normal monitoring fire alarm.This has just guaranteed at the transformer run duration, in the time of can not going up the main transformer repair and replacement again owing to the heat detector fault, after its shielding, can not influence system's operation.Treat that main transformer has a power failure when safeguarding, after the heat detector fault is got rid of, its shielding removed that this heat detector can recover operate as normal again.
This foam spray fire extinguisher can replace traditional main transformer water spray fire-fighting system, uses it can reduce construction investment, and has solved the problem of arid area shortage fire demand water.Foam spray fire extinguisher can be applicable to the protective field of industries such as transformer station, power plant, storage tank farm, Oil-burning Boiler Room, petrochemical industry, boats and ships.
Description of drawings
Below in conjunction with accompanying drawing for an embodiment:
Fig. 1 is the three-dimensional view of main transformer
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the three-dimensional view that temperature becomes case
Fig. 4 is the three-dimensional view of temp probe
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3,8 temp probe 1 horizontal directions of this foam spray fire extinguisher are installed in the junction of bushing 2 and main transformer 3, and every temp probe 1 is coupled together by the temperature change device 6 that temperature-compensating line 4 and temperature become in the case 5.As Fig. 2, shown in Figure 4, temp probe 1 is contained in the spherical waterproof safety cover 7, at spherical waterproof mounting cup 7 external welding stainless steel braces 8, is fixed on bushing 2 roots of main transformer 3 by the Luo bolt.
Claims (2)
1. foam spray fire extinguisher, form by the man-machine interface that temp probe, temperature-compensating line, temperature become case, are assemblied in the temperature transmitter in the temperature change case and control thermal module, PLC, are assemblied in the Fire Control Cabinet, it is characterized in that: 4-10 temp probe is installed in the junction of bushing and main transformer, and every temp probe is coupled together by temperature-compensating line and the temperature change device that is contained in the temperature change case.
2. foam spray fire extinguisher according to claim 1, it is characterized in that: described temp probe is contained in the waterproof safety cover, at waterproof mounting cup external welding stainless steel brace, the stainless steel brace is fixed on the bushing root of main transformer by the Luo bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810180136XA CN101401990B (en) | 2008-12-01 | 2008-12-01 | Foam spray fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810180136XA CN101401990B (en) | 2008-12-01 | 2008-12-01 | Foam spray fire extinguisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101401990A CN101401990A (en) | 2009-04-08 |
| CN101401990B true CN101401990B (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810180136XA Active CN101401990B (en) | 2008-12-01 | 2008-12-01 | Foam spray fire extinguisher |
Country Status (1)
| Country | Link |
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| CN (1) | CN101401990B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354435B (en) * | 2019-07-19 | 2021-07-09 | 北京永华伟业工程有限公司 | Automatic fire alarm and linkage control system for main transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125413U (en) * | 1992-06-02 | 1992-12-23 | 中国消防安全工程公司东北公司 | Fire extinguisher for discharging-rabbling type transformer |
| JP2002034146A (en) * | 2000-07-13 | 2002-01-31 | Mitsubishi Electric Corp | Transformer load monitor |
| CN201022914Y (en) * | 2007-04-09 | 2008-02-20 | 韩会涛 | Oil-immersed power transformer nitrogen filling fire fighting device |
| CN201295487Y (en) * | 2008-12-01 | 2009-08-26 | 内蒙古硕方水电设备有限公司 | Foam spray type fire extinguisher |
-
2008
- 2008-12-01 CN CN200810180136XA patent/CN101401990B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125413U (en) * | 1992-06-02 | 1992-12-23 | 中国消防安全工程公司东北公司 | Fire extinguisher for discharging-rabbling type transformer |
| JP2002034146A (en) * | 2000-07-13 | 2002-01-31 | Mitsubishi Electric Corp | Transformer load monitor |
| CN201022914Y (en) * | 2007-04-09 | 2008-02-20 | 韩会涛 | Oil-immersed power transformer nitrogen filling fire fighting device |
| CN201295487Y (en) * | 2008-12-01 | 2009-08-26 | 内蒙古硕方水电设备有限公司 | Foam spray type fire extinguisher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101401990A (en) | 2009-04-08 |
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Effective date of registration: 20160408 Address after: 010010 the Inner Mongolia Autonomous Region Hohhot new city Guandi temple Nailun apartment building 8 Nailun business center two floor North Block Patentee after: Inner Mongolia Hengxin Hydroelectric Equipment Co., Ltd. Address before: 010010 the Inner Mongolia Autonomous Region Hohhot new City Business Center No. 8 Nailun Guandi temple building two floor Patentee before: Inner Mongolia Shuofang Hydropower Equipment Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 010010 the Inner Mongolia Autonomous Region Hohhot new city Guandi temple Nailun apartment building 8 Nailun business center two floor North Block Patentee after: Inner Mongolia Hengxin fire fighting Technology Co., Ltd. Address before: 010010 the Inner Mongolia Autonomous Region Hohhot new city Guandi temple Nailun apartment building 8 Nailun business center two floor North Block Patentee before: Inner Mongolia Hengxin Hydroelectric Equipment Co., Ltd. |