CN201367753Y - Heat insulation and fire protection device for closed circular coal yard - Google Patents
Heat insulation and fire protection device for closed circular coal yard Download PDFInfo
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- CN201367753Y CN201367753Y CNU2009200837487U CN200920083748U CN201367753Y CN 201367753 Y CN201367753 Y CN 201367753Y CN U2009200837487 U CNU2009200837487 U CN U2009200837487U CN 200920083748 U CN200920083748 U CN 200920083748U CN 201367753 Y CN201367753 Y CN 201367753Y
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- coal yard
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Abstract
A heat insulation and fire protection device for a closed circular coal yard comprises a heat insulation device (1), a fire detection device (2) and a fire protection device (3), wherein the heat insulation device (1) are groove-type heat insulation boards (5) positioned inside a concrete coal bulkhead (4) and placed side by side; a heat insulation hollow cavity (6) is formed between the groove-type heat insulation boards (5) and the concrete coal bulkhead (4); the fire detection device (2) comprises a temperature-sensing detector between the outer sides of two groove-type heat insulation boards (5) and a temperature control module (8); the fire detection device (2) is connected with a fire protection device (3); and the fire protection device (3) comprises an annular cooling water pipe (9) and a control valve (10), wherein the cooling water pipe (9) is connected with the control valve (10). The utility model overcomes the disadvantage of poor heat insulation and fire protection performances in the prior closed circular coal yard, and has the advantages of simple structure as well as good heat insulation and fire protection performances.
Description
Technical field
The utility model relates to the heat insulation and fire protection device of a kind of closed circular coal yard.
Background technology
The sealing coal yard is the general designation of the coal-fired storage facility of coal-fired station, comprises coal yard plant equipment and civil engineering two parts.The coal yard plant equipment mainly is made up of the conical coal bunker of central post and bottom, stacker, reclaimer, vibration feeder etc.; The civil engineering part then mainly comprises steel structure net rack roof system and steel concrete coal-stopping wall (being called for short coal-stopping wall in following), warehouse entry trestle and delivers from godown genuine form (as shown in Figure 1).
The main flow process that the sealing coal yard is served power plant's production is as follows: the outside comes coal to be transported to the warehouse entry trestle of sealing coal yard by the relevant device of power plant's coal handling system, driving belt on the warehouse entry trestle is transported to the stacker of sealing coal yard central authorities, operates by coming coal successively to stack in coal yard and storage through stacker then.During coal piling in thermal power plant produce to need uses the sealing coal yard, will be delivered to the underground fortune coal gallery of coal yard, and finally be transported to boiler and burn (as shown in Figure 1) by the fire coal that the reclaimer operation will store by the principle of coal piling first in first out.
For environmental requirement improve day by day, popular today that environmental consciousness strengthens day by day, resources conservation more and more is much accounted of, the outstanding advantage of closed circle coal yard mainly shows as:
(1) coal yard is a full-closed structure, can avoid the interior coal dust of coal yard to escape contaminated environment;
(2) coal yard storage coal all is a dry coal, guarantees that the storage coal is not subjected to the influence of amblent air temperature, has reduced the loss that coal causes because of reasons such as volatilization, rainfall losses in storage process;
(3) the equipment advanced person of coal yard employing, automaticity is higher, the coal yard coal piling returns the rate of getting and utilization of area rate height, can save the land occupation resource effectively.
Take all factors into consideration from aspects such as environmental protection, the loss of lowering coal and minimizing occupations of land, the application of sealing coal yard more and more widely.Coal piling temperature in the sealing coal yard can be passed in time and be increased, and coal-stopping wall directly contacts with coal piling and causes can producing bigger thermal stresses in the coal-stopping wall, thereby it is excessive to cause sealing coal yard concrete guard wall structural reinforcement; In addition, when storing bituminous coal or brown coal in the sealing coal yard, because the drying of coal does not have basic fugitive constituent very high (Vdaf＞20%), be easy to generate dieseling, under the situation that coal piling and coal-stopping wall keep directly contacting, the high temperature that spontaneous combustion produces will produce directly influence and destroy the coal-stopping wall structure, thereby cause potential safety hazard or cause the generation of security incident.
Domestic common employing at present is that the certain altitude scope is built refractory brick and aerating coagulation piece by laying bricks or stones and come heat insulationly between coal-stopping wall (inboard) and coal piling, and effect of heat insulation is unsatisfactory; In addition, monitoring, warning and the integrated protection measure embodiment of the coal spontaneous combustion of sealing coal yard internal combustion are not then seen.Therefore take which kind of effective provision for thermal insulation to reduce coal piling temperature action effect, and this measure effectively is combined into one with monitoring, warning and the integrated protection measure of stacking coal-fired spontaneous combustion in the coal yard guarantees coal-stopping wall structure economics, safety, guarantee that the normal operation of whole coal yard safety has very reality and important meaning.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned existing closed circular coal yard, and provides a kind of closed circular coal yard heat insulation and fire protection device.
The purpose of this utility model reaches by following measure: the heat insulation and fire protection device of closed circular coal yard, it comprises heat-proof device, it is characterized in that it also comprises fire detecting arrangement, fire protective device, described heat-proof device is the inboard grooved insulating board of placing side by side that is positioned at the concrete coal-stopping wall, forms heat insulation cavity between grooved insulating board and the concrete coal-stopping wall; Described fire detecting arrangement is included in two heat detector, temperature control modules between the adjacent grooved insulating board outside, and heat detector is connected with temperature control modules; Described fire detecting arrangement is connected with the fire protective device; The fire protective device comprises ring-type cooling water pipe, the control valve along the coal yard circumference; the ring-type cooling water pipe is connected with control valve; control valve is connected with temperature control modules, and described ring-type cooling water pipe is positioned at the upper end of grooved insulating board, is useful on the weep hole of spray on the ring-type cooling water pipe.
In technique scheme, described fire detecting arrangement also comprises alarm, and described alarm is connected with heat detector.
In technique scheme, described heat detector is positioned at coating steel pipe.
In technique scheme, described control valve is connected with fire water monitor.
In technique scheme, control valve is connected with fire water monitor.
Heat insulation and the fire protection device of the closed circular coal yard of the utility model has following advantage:
1., the grooved insulating board realized between coal-stopping wall and the coal piling effectively isolating, coal-stopping wall is played a very good protection.
2., coal-stopping wall and grooved insulating board formed occluded air layer (heat insulation cavity) between the two along vertical perforation on the coal-stopping wall short transverse, can realize effective heat-blocking action to the coal piling temperature.Adopt this device back coal-stopping wall because the inside and outside wall design temperature difference that the coal piling temperature rise causes can be reduced to about 10 ℃ from 30 ℃, thereby improve the economy of coal-stopping wall structure design effectively.
3., coal-stopping wall forms along the occluded air layer of vertical perforation on the coal-stopping wall short transverse between the two with the grooved insulating board, realized the thermolysis to the coal piling temperature.
4., the grooved insulating board makes simply, repairs simply and convenient after the local damage, and has better economic.
5., can comprehensively, rapidly and accurately grasp coal piling temperature rise actual conditions, fire carries out early warning and takes follow-up safeguard procedures when finding the coal piling spontaneous combustion effectively and in time by in adjacent grooved insulating board plate seam, burying heat detector underground.
6., the grooved insulating board upper end along coal yard annular coal-stopping wall top layout is provided with ring-type cooling water pipe system.Heat detector and ring-type cooling water pipe can be divided into several detections and spray zone according to the size of sealing coal yard, temperature sensing cable temperature when arbitrary zone rises when fire alarm system in time sends alarm signal, the effective protective action to coal-stopping wall is realized by the cooling of lowering the temperature of spraying water in the vertical occluded air layer of the rapidly past grooved insulating board (prefabricated reinforced concrete structure) of ring-type cooling water pipe in control valve (electric butterfly valve) back that can open this zone ring-type cooling water pipe automatically.
The application of and fire protection integration unit heat insulation by closed circular coal yard, can reduce the coal-stopping wall inside and outside wall design temperature difference effectively and reach optimal design, can realize effective isolation of coal piling and coal-stopping wall, can be rapidly and find the coal piling temperature rise in time, and implement spray and cooling fast and effectively to the coal piling hot spots, guarantee to seal coal yard coal-stopping wall structural safety, stable, economy, reliability service.
Description of drawings
Fig. 1 is the overall structure schematic diagram of closed circular coal yard.
Fig. 2 is the location diagram of coal-stopping wall and grooved insulating board.
Fig. 3 is the drawing of site between heat detector, grooved insulating board, the ring-type cooling water pipe.
Fig. 4 is the structure vertical view (A-A section) of Fig. 3.
Fig. 5 is the location diagram between fire protective device and the coal-stopping wall.
Fig. 6 is a block diagram of the present utility model.
1. heat-proof devices among the figure, 2. fire detecting arrangement, 3. fire protective device, 4. concrete coal-stopping wall (or claiming coal-stopping wall); 5. grooved insulating board, 6. heat insulation cavity, 7. heat detector; 8. temperature control modules, 9. ring-type cooling water pipe (or claiming cooling water pipe), 10. control valve; 11. weep hole, 12. alarms, 13. spherical net shells; 14. the warehouse entry trestle, 15. tunnels that deliver from godown, 16. stacker-reclaimers; 17. coal piling, 18. coating steel pipes, 19. fire water monitors.
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously by illustrating that advantage of the present utility model will become clear more and understanding easily.
Consult accompanying drawing as can be known: the heat insulation and fire protection device of the closed circular coal yard of the utility model, it comprises heat-proof device 1, fire detecting arrangement 2, fire protective device 3, heat-proof device 1 is for being positioned at the inboard grooved insulating board of placing side by side 5 of concrete coal-stopping wall 4, form heat insulation cavity 6 between grooved insulating board 5 and the concrete coal-stopping wall 4, fire detecting arrangement 2 is included in two heat detector 7, temperature control modules 8 between adjacent grooved insulating board 5 outsides, and heat detector 7 is connected with temperature control modules 8; Described fire detecting arrangement 2 is connected with fire protective device 3; Fire protective device 3 comprises ring-type cooling water pipe 9, control valve 10; ring-type cooling water pipe 9 is connected with control valve 10; control valve 10 is connected with temperature control modules 8, and described ring-type cooling water pipe 9 is positioned at the upper end of grooved insulating board 5, and weep hole 11 is arranged on the ring-type cooling water pipe 9.Fire detecting arrangement 2 also comprises alarm 12, and alarm 12 is connected with heat detector 7.Heat detector 7 is positioned at coating steel pipe 18, and in technique scheme, control valve 10 is connected with fire water monitor 19.
The test result of closed circular coal yard coal piling temperature rise shows: when continuing pilling up time be no more than 30 days in the sealing coal yard for the coal of stacking in China south power plant coal yard, thereby the coal-stopping wall surface that directly contact with coal piling forms about about 30 ℃ temperature difference owing to the temperature rising of coal at the coal-stopping wall inside and outside wall; When fire coal continues pilling up time above 45 days in the sealing coal yard, dieseling will take place in coal.The model testing of coal piling spontaneous combustion shows, when not taking provision for thermal insulation, will produce huge thermal stresses after coal-stopping wall is heated after the coal-fired spontaneous combustion and causes the coal-stopping wall cracking normally to use; Coal 30 ℃ of left and right sides temperature difference of outer wall within the walls will cause the economy of coal-stopping wall structure design not good; The fire that the coal piling spontaneous combustion produces will make coal-stopping wall structure and whole coal yard have potential safety hazard when normal the use, and therefore the reply coal-stopping wall is taked suitable and effectively heat insulation, fire protection aggregate measures in the actual engineering.
Show with the model investigation of refractory brick, three kinds of different provision for thermal insulations of aerating coagulation piece by the heat insulation template of prefabricated reinforced concrete groove to band occluded air layer: the prefabricated reinforced concrete grooved insulating board effect of heat insulation with vertical occluded air layer is best, can realize effect of heat insulation effectively and coal-stopping wall is played a very good protection; Can dispel the heat effectively because of the existence that the occluded air layer is arranged simultaneously, realize the destruction minimum that the coal piling temperature produces coal-stopping wall, and when guaranteeing the coal-stopping wall structural safety, realize the economy of its construction costs; On the other hand, during practical engineering application coal-stopping wall is adopted effective fire integrated safeguard procedures, safety and the normal operation that guarantees whole coal yard had very reality and important meaning.
The utility model is for closed circular coal yard structure, take between integral concrete coal-stopping wall and coal piling, to add the function that realizes heat insulation, heat radiation and protection coal-stopping wall with the prefabricated reinforced concrete grooved insulating board of vertical occluded air layer, lay a good foundation for the optimal design of coal-stopping wall, also become first road protection aggregate measures that guarantee coal-stopping wall safety; (all temperature sensing cables all lay in coating steel pipe to lay heat detector simultaneously in facing the plate seam of prefabricated reinforced concrete grooved insulating board mutually, coating steel pipe all adopts the concrete mortar parcel tight), and all temperature sensing cables (alarm temperature is 100～130 ℃) with the fire-fighting fire alarm system of coal yard be connected can be effectively and survey all sidedly and discovery coal piling spontaneous combustion in time in incipient fire; After fire alarm system sends sealing coal yard fire signal, can utilize the fire and cooling water system guard system that is installed in the groove type plate top to cool toward the interior water spray of the vertical occluded air layer of groove type plate rapidly, with the coal-stopping wall structural safety behind effective assurance steel concrete grooved insulating board, realized second road protection, thereby guaranteed whole closed circular coal yard safety, reliability service the concrete coal-stopping wall.
The application of and fire protection integration unit heat insulation by closed circular coal yard, can reduce the coal-stopping wall inside and outside wall design temperature difference effectively and realize optimal design, can realize effective isolation of coal piling and coal-stopping wall, can be rapidly and find the coal piling temperature rise in time, and implement spray and cooling rapidly and effectively to the coal piling hot spots, guarantee to seal coal yard coal-stopping wall structural safety, stable, economy, reliability service.
Claims (4)
1, heat insulation and the fire protection device of closed circular coal yard, it comprises heat-proof device (1), it is characterized in that it also comprises fire detecting arrangement (2), fire protective device (3), described heat-proof device (1) is for being positioned at the inboard grooved insulating board of placing side by side (5) of concrete coal-stopping wall (4), form heat insulation cavity (6) between grooved insulating board (5) and the concrete coal-stopping wall (4), described fire detecting arrangement (2) is included in the heat detector (7) between two grooved insulating boards (3) outside, temperature control modules (8), (8 are connected heat detector (7) with temperature control modules; Described fire detecting arrangement (2) is connected with fire protective device (3); Fire protective device (3) comprises cooling water pipe (9), the control valve (10) of ring-type; cooling water pipe (9) is connected with control valve (10); control valve (10) is connected with temperature control modules (8); described ring-type cooling water pipe (9) is positioned at the upper end of grooved insulating board (5), and weep hole (11) is arranged on the ring-type cooling water pipe (9).
2, the heat insulation and fire protection device of closed circular coal yard according to claim 1 is characterized in that described fire detecting arrangement (2) also comprises alarm (12), and described alarm (12) is connected with heat detector (7).
3, the heat insulation and fire protection device of closed circular coal yard according to claim 1 is characterized in that described heat detector (7) is positioned at coating steel pipe (18).
4, the heat insulation and fire protection device of closed circular coal yard according to claim 1 is characterized in that described control valve (10) is connected with fire water monitor (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200837487U CN201367753Y (en) | 2009-02-19 | 2009-02-19 | Heat insulation and fire protection device for closed circular coal yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200837487U CN201367753Y (en) | 2009-02-19 | 2009-02-19 | Heat insulation and fire protection device for closed circular coal yard |
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| Publication Number | Publication Date |
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| CN201367753Y true CN201367753Y (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200837487U Expired - Fee Related CN201367753Y (en) | 2009-02-19 | 2009-02-19 | Heat insulation and fire protection device for closed circular coal yard |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972528A (en) * | 2010-09-28 | 2011-02-16 | 中国神华能源股份有限公司 | Method for preventing spontaneous combustion of stored coal piles by covering coal piles by utilizing oxygen-insulating materials |
| CN105536174A (en) * | 2016-01-29 | 2016-05-04 | 深圳东信环能科技有限公司 | Method for preventing spontaneous combustion of coal in strip-shaped coal storage yard and application of method |
| CN109011258A (en) * | 2018-08-17 | 2018-12-18 | 国电龙源电力技术工程有限责任公司 | The method of coal yard safety monitoring and fire protection linkage control |
-
2009
- 2009-02-19 CN CNU2009200837487U patent/CN201367753Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972528A (en) * | 2010-09-28 | 2011-02-16 | 中国神华能源股份有限公司 | Method for preventing spontaneous combustion of stored coal piles by covering coal piles by utilizing oxygen-insulating materials |
| CN105536174A (en) * | 2016-01-29 | 2016-05-04 | 深圳东信环能科技有限公司 | Method for preventing spontaneous combustion of coal in strip-shaped coal storage yard and application of method |
| CN109011258A (en) * | 2018-08-17 | 2018-12-18 | 国电龙源电力技术工程有限责任公司 | The method of coal yard safety monitoring and fire protection linkage control |
| CN109011258B (en) * | 2018-08-17 | 2023-08-11 | 国能龙源电力技术工程有限责任公司 | Coal yard safety monitoring and fire-fighting linkage control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTI Free format text: FORMER OWNER: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP COR Effective date: 20150129 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150129 Address after: 430071 Wuchang District, Hubei, South Central Road No. two, No. 12, No. Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 430071 No. 668 Democratic Road, Wuchang District, Hubei, Wuhan (Central South Electric Power Design Institute) Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20170219 |