CN205055286U - A second grade fire extinguishing systems for storing coal device - Google Patents
A second grade fire extinguishing systems for storing coal device Download PDFInfo
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- CN205055286U CN205055286U CN201520797687.6U CN201520797687U CN205055286U CN 205055286 U CN205055286 U CN 205055286U CN 201520797687 U CN201520797687 U CN 201520797687U CN 205055286 U CN205055286 U CN 205055286U
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- control system
- fuel gas
- protection
- coal
- fire extinguishing
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a second grade fire extinguishing systems for storing coal device, including master control system, CO2 fire suppression control system, the combustible gas system of taking out, N2 protection control system and coal scuttle, master control system is connected with CO2 fire suppression control system, the combustible gas system of taking out and N2 protection control system respectively, the combustible gas system of taking out is used for extracting the interior combustible gas of confined space at coal scuttle top, N2 protection control system is the one -level protection system of sui, and N2 protection control system is used for the confined space at sui protection coal scuttle top, the CO2 fire suppression control system is second grade fire suppression control system, the utility model provides a processing system that puts out a fire of explosive gas concentration is easily fired in effective reduction, and exchanging of avoiding effectively that oxidation process produces in the coal scuttle top seal space is fired explosive gas and constantly gather, avoids blasting, effectively avoid equipment that the explosion accident takes place to cause to decrease the condition such as useless and injury to personnel, reduce the operation risk, provide effectual guarantee for the safety in production of power plant.
Description
Technical field
The utility model relates to fire extinguishing system, particularly relates to a kind of secondary fire extinguishing system for storing device for coal.
Background technology
Along with the rapid economic development of China, the demand growth of electric power is swift and violent; For solving the disparities between supply and demand of electric power, China greatly develops electric utility, and the development in thermal power plant is especially rapid; The coal-fired main fuel as power plants generating electricity, from raw coal to can the coal dust of spray combustion, need a set of coal-fired treating apparatus, coal bunker be that coal is by the storage facility of raw coal before pulverization process; Coal can produce spontaneous combustion under the condition being subject to heat radiation, extruding, friction; When dieseling occurs, also produce the heat being greatly, heat makes extraneous air be entered in coal bunker by bottom coal-fired release door and promote combustion oxidation; When coal bunker internal temperature exceedes external temperature, cause cross-ventilation, and accelerate coal-fired oxidation; Produce flammable explosive gas in oxidizing process, as carbon monoxide, in the coal bunker at top seal of top seal, the gas that oxidizing process produces constantly is assembled, and is full of headroom, easily blasts.
Utility model content
The utility model object is to solve the problem; a kind of one-level inactive protect and secondary fire extinguishing treatment system of effective minimizing flammable explosive gas concentration are provided; effectively avoid the flammable explosive gas that in the coal bunker of top seal, oxidizing process produces constantly to assemble, avoid blasting.
For achieving the above object, the technical solution adopted in the utility model is: a kind of secondary fire extinguishing system for storing device for coal, comprises master control system, CO
2extinguishment control system and coal bunker, described master control system and CO
2extinguishment control system connects; Also comprise fuel gas and take out system and N
2protection control system; Described fuel gas take out system for extract coal bunker top seal cavity in fuel gas; Described N
2protection control system is one-level Sui protection system, described N
2protection control system is used for the seal cavity at Suiization protection coal bunker top; Described master control system respectively with fuel gas extract system and N
2protection control system connects.
Improve further as the utility model, described fuel gas takes out system configuration has fuel gas hold-up tank, vavuum pump and fuel gas to bleed bucket; Described fuel gas is taken out system and is connected fuel gas hold-up tank, and described fuel gas hold-up tank is bled to struggle against by vavuum pump and fuel gas and is connected, and described fuel gas is bled to struggle against and is positioned at the seal cavity at described coal bunker top.
Improve further as the utility model, described N
2protection control system is configured with N
2holding vessel, throttling arrangement, Pressure gauge and magnetic valve; Described N
2protection control system connects N
2holding vessel, described N
2holding vessel connects throttling arrangement, and described throttling arrangement Bonding pressure table, described Pressure gauge passes through N
2pipeline is connected with magnetic valve, and described magnetic valve is arranged on the seal cavity inwall at coal bunker top.
Improve further as the utility model, described CO
2extinguishment control system comprises CO
2storage tank, main valve, gasifier, pressure reduction generator, main solenoid valve, throttling arrangement region magnetic valve, described CO
2extinguishment control system connects CO
2storage tank, described CO
2storage tank is connected with gasifier by main valve; described gasifier is connected with pressure reduction generator; described pressure reduction generator is connected with main solenoid valve and throttling arrangement respectively; described main solenoid valve and throttling arrangement are connected with region magnetic valve respectively, and described region magnetic valve is arranged on the inwall of protection zone in coal bunker.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages: a kind of secondary fire extinguishing system for storing device for coal, a kind of fire extinguishing treatment system of effective minimizing flammable explosive gas concentration is provided, the flammable explosive gas effectively avoiding the seal cavity internal oxidition process at coal bunker top to produce constantly is assembled, and avoids blasting; Effectively avoid explosion accident to cause equipment damage the situations such as useless and injury to personnel, reduce operation risk, the safety in production for power plant provides effective guarantee.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is a kind of secondary fire extinguishing system schematic diagram for storing device for coal of the utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments; Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1 for a kind of secondary fire extinguishing system for storing device for coal described in the utility model, comprise master control system, CO
2extinguishment control system, fuel gas take out system, N
2protection control system and coal bunker 1, master control system takes out system, N with fuel gas respectively
2protection control system and CO
2extinguishment control system connects.
Fuel gas is taken out system and is connected fuel gas hold-up tank, and fuel gas hold-up tank is bled to struggle against by vavuum pump 2 and fuel gas and is connected, and fuel gas is bled to struggle against and is positioned at the seal cavity at coal bunker 1 top; The fuel gas that the seal cavity that fuel gas extract system extracts coal bunker 1 top constantly produces; Effective reduction fuel gas is assembled in a large number;
N
2protection control system connects N
2holding vessel, N
2holding vessel connects throttling arrangement, and throttling arrangement Bonding pressure table, Pressure gauge passes through N
2pipeline is connected with magnetic valve 3, and magnetic valve 3 is arranged on the seal cavity inwall at coal bunker 1 top; N
2protection control system, by throttling arrangement and manometric adjustment, realizes continuously the N of the uninterrupted seal cavity to coal bunker 1 top release certain pressure
2, for the concentration of the seal cavity fuel gas at one-level Suiization protection coal bunker 1 top, effectively avoid fuel gas to assemble in a large number, produce the risk of blast;
CO2 extinguishment control system realizes secondary fire extinguishing system simultaneously and controls; When starting fire-fighting work, open main valve 4, main solenoid valve 5 and region magnetic valve 6 simultaneously, liquid carbon dioxide is discharged by main valve 4, after first being vaporized by gasifier, reduced pressure by decompressor again, the carbon dioxide of stable output, carries out preliminary large discharge by main solenoid valve 5 and region magnetic valve 6 and spurts, make tentatively to spurt pharmaceutical quantities reach as early as possible control oxygen concentration in coal bunker be less than cause coal dust explosion limiting oxygen concentration under; After this phase lasts spurts 1.2 hours, closedown main solenoid valve 5 simultaneously retaining zone magnetic valve 6 is opened, continue the CO2 gas after release vaporization to be spurted by the flow of throttling arrangement controls CO2 gas and pressure realization, in order to maintain the inerting environment of coal bunker 1 and supplementing of coal bunker 1 amount of leakage, it is 6.8 hours that second step medicament spurts the duration; After spurting, first close main valve 4, after time delay 10 minutes (this time scene is adjustable), after residue gaseous state CO2 discharge is clean, close closed region magnetic valve 6 again; The CO concentration in coal bunker is detected in time by Detection Techniques;
A kind of fire extinguishing treatment system of effective minimizing flammable explosive gas concentration is provided, effectively avoids the flammable explosive gas that in coal bunker top seal space, oxidizing process produces constantly to assemble, avoid blasting; Effectively avoid explosion accident to cause equipment damage the situations such as useless and injury to personnel, reduce operation risk, the safety in production for power plant provides effective guarantee.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within the utility model rights protection scope.
Claims (4)
1., for storing a secondary fire extinguishing system for device for coal, comprise master control system, CO
2extinguishment control system and coal bunker, described master control system and CO
2extinguishment control system connects; It is characterized in that: also comprise fuel gas and take out system and N
2protection control system; Described fuel gas take out system for extract coal bunker top seal cavity in fuel gas; Described N
2protection control system is one-level Sui protection system, described N
2protection control system is used for the seal cavity at Suiization protection coal bunker top; Described master control system respectively with fuel gas extract system and N
2protection control system connects.
2. a kind of secondary fire extinguishing system for storing device for coal according to claim 1, is characterized in that: described fuel gas takes out system configuration has fuel gas hold-up tank, vavuum pump and fuel gas to bleed bucket; Described fuel gas is taken out system and is connected fuel gas hold-up tank, and described fuel gas hold-up tank is bled to struggle against by vavuum pump and fuel gas and is connected, and described fuel gas is bled to struggle against and is positioned at the seal cavity at described coal bunker top.
3. a kind of secondary fire extinguishing system for storing device for coal according to claim 1, is characterized in that: described N
2protection control system is configured with N
2holding vessel, throttling arrangement, Pressure gauge and magnetic valve; Described N
2protection control system connects N
2holding vessel, described N
2holding vessel connects throttling arrangement, and described throttling arrangement Bonding pressure table, described Pressure gauge passes through N
2pipeline is connected with magnetic valve, and described magnetic valve is arranged on the seal cavity inwall at coal bunker top.
4. a kind of secondary fire extinguishing system for storing device for coal according to claim 1, is characterized in that: described CO
2extinguishment control system comprises CO
2storage tank, main valve, gasifier, pressure reduction generator, main solenoid valve, throttling arrangement region magnetic valve, described CO
2extinguishment control system connects CO
2storage tank, described CO
2storage tank is connected with gasifier by main valve; described gasifier is connected with pressure reduction generator; described pressure reduction generator is connected with main solenoid valve and throttling arrangement respectively; described main solenoid valve and throttling arrangement are connected with region magnetic valve respectively, and described region magnetic valve is arranged on the inwall of protection zone in coal bunker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797687.6U CN205055286U (en) | 2015-10-15 | 2015-10-15 | A second grade fire extinguishing systems for storing coal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797687.6U CN205055286U (en) | 2015-10-15 | 2015-10-15 | A second grade fire extinguishing systems for storing coal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205055286U true CN205055286U (en) | 2016-03-02 |
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ID=55381891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520797687.6U Expired - Fee Related CN205055286U (en) | 2015-10-15 | 2015-10-15 | A second grade fire extinguishing systems for storing coal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205055286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591155A (en) * | 2022-11-03 | 2023-01-13 | 上海穗杉实业股份有限公司（Cn） | Nitrogen injection and oxygen control environment-controlled fire protection system and method for reducing nitrogen injection time |
-
2015
- 2015-10-15 CN CN201520797687.6U patent/CN205055286U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591155A (en) * | 2022-11-03 | 2023-01-13 | 上海穗杉实业股份有限公司（Cn） | Nitrogen injection and oxygen control environment-controlled fire protection system and method for reducing nitrogen injection time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20211015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |