CN103601164A - Inert gas generating device - Google Patents
Inert gas generating device Download PDFInfo
- Publication number
- CN103601164A CN103601164A CN201310564803.5A CN201310564803A CN103601164A CN 103601164 A CN103601164 A CN 103601164A CN 201310564803 A CN201310564803 A CN 201310564803A CN 103601164 A CN103601164 A CN 103601164A
- Authority
- CN
- China
- Prior art keywords
- communicated
- gas
- pipeline
- inert gas
- enclosed space
- Prior art date
- 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.)
- Granted
Links
Images
Landscapes
- Separation By Low-Temperature Treatments (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an inert gas generating device. The inert gas generating device comprises a gas production unit, a detection unit, a cooling unit and a controller, wherein the gas production unit comprises an inert gas generation furnace and an automatic burning powder feeding unit, the detection unit comprises an oxygen analyzer and an oxygen and carbon monoxide analyzer, the cooling unit comprises at least one group of coolers, the gas inlet end of the oxygen analyzer is communicated with a protected closed space through a first fan, the gas outlet end of the oxygen analyzer is communicated with an inlet of the inert gas generation furnace, an outlet of the inert generation furnace is communicated with the coolers, the coolers are communicated with the protected closed space through a second fan, the oxygen and carbon oxide analyzer is communicated with the coolers, and the automatic burning powder feeding unit the oxygen analyzer and the oxygen and carbon oxide analyzer are respectively connected with the controller. Gas inside the protected space is exhausted and burned, and then generated inert gas is charged into the protected closed space, so that the safety of the protected closed space can be guaranteed.
Description
Technical field
The invention belongs to security against fire technical field, be specifically related to a kind of novel inert gas body generating unit that integrates active safety fire-fighting protection, puts out a fire.
Background technology
Situation one: the rare gas element of carbonic acid gas, IG541, heptafluoro-propane and so on as firing-fighting medium for fire extinguishing, once and be finished, must supplement in time, make repair and maintenance cost and time cost large;
Situation two: the occasion at needs as active fire safety protecting; as petroleum storage tank, second alcohols material; because there is inflammable gas volatile, evaporation in it; can adopt carbon dioxide or nitrogen to act on oil or ethanol liquid surface in airtight storage tank; form one deck inerting gas shield layer, realized oil in enclosed space or ethanol liquid medium are carried out to active safety fire-fighting protection.When adopting pure nitrogen gas to carry out inactive protect; because of the mean density of the mixed gas of the oil gas in the airtight storage tank of density ratio of nitrogen and air low; along with day and night temperature changes, the use of liquid discharge; pot liquid surface will constantly volatilize inflammable gas; along with increasing of volatilization gas; air pressure inside continues to increase; volatilization gas pressure in the enclosed space of tank level top is increased; under the gas pressure of lower floor's oil gas and space mixed gas, nitrogen is constantly released by the vacuum pressure valves of tank body top.Conclusion: while adopting pure nitrogen gas as the inerting protective media of large-scale flammable liquid enclosed space, nitrogen supply unit start is for the longevity of service of nitrogen, and to supplement the nitrogen medium in continuous used up inerting layer, its operation cost is high.
Situation three: carbon dioxide is during as inactive protect medium, because of the mean density of density higher than oil gas and space, its inerting gas shield layer is between pasta and oil gas, its effect has two aspects: the one, because carbonic acid gas inerting gas has occupied liquid level top, reduced the space that liquid level volatilization occurs, liquid level does not possess volatilization needs steric requirements, has greatly reduced the volatilization of flammable liquid; The 2nd, the remaining inflammable gas having volatilized in inactive protect layer top is played and the buffer action of protecting the liquid level of protective layer below; and; thickening along with inerting layer carbon dioxide layer; remaining a small amount of volatilization gas is extruded outside tank by the vacuum pressure valves of tank deck top, has greatly reduced the probability of presence of fire.Therefore as the supplementary frequency of inert gas, far fewer than nitrogen, be, a kind of more satisfactory inactive protect medium.But carbonic acid gas, because of storing relation, needs to build very large wet tank, the liquid carbon dioxide in tank is finished and need to supplements in time, has strengthened transportation cost and the time cost of carbonic acid gas supply.Conclusion: no matter be that its laid down cost, transportation cost and time cost are high, cause its operation cost higher.
Situation four: large-scale cloth, silo, depositing the storage vault of the flammable solids such as paper storehouse, is large sealing space, is applicable to carbon dioxide and carries out inactive protect.Conclusion: because accumulating storage tank is with situation three, when using Liquid carbon dioxide to large-scale cloth, silo, when depositing the enclosed spaces such as paper storehouse and carrying out inactive protect, also face, laid down cost, transportation cost and time cost are high, cause its operation cost higher.
Summary of the invention
The object of the invention is to: for the problem of above-mentioned existence, provide a kind of and can integrate fire prevention, put out a fire, inert gas generator simple in structure and easy to use.
Technical scheme of the present invention is achieved in that a kind of inert gas generator, it is characterized in that: comprise aerogenesis unit, detecting unit, cooling unit and controller, described aerogenesis unit comprise rare gas element producer and with the combustion powder automatic feed unit of rare gas element producer internal communication, described detecting unit comprises O
2gas analyzer and O
2, CO gas analyzer, described cooling unit comprises at least one group of water cooler, described O
2the inlet end of gas analyzer is communicated with protected enclosed space by the first blower fan; its outlet side is communicated with the import of rare gas element producer by pipeline; the outlet of described rare gas element producer is communicated with water cooler by pipeline; described water cooler is communicated with protected enclosed space by the second blower fan, described O
2, CO gas analyzer is communicated with water cooler by pipeline, described combustion powder automatic feed unit, O
2gas analyzer and O
2, CO gas analyzer is connected with controller respectively.
Inert gas generator of the present invention, is provided with the two-position three way electrical ball valve being connected with controller on its pipeline being communicated with protected enclosed space at described the second blower fan, and described controller is according to O
2, the result that detects of CO gas analyzer, control two-position three way electrical ball valve and be communicated with protected enclosed space or rare gas element producer by pipeline.
Inert gas generator of the present invention, described in it, water cooler is communicated with gas-holder by air compressor machine, described O
2, CO gas analyzer inlet, outlet end by pipeline, be communicated with gas-holder respectively, described gas-holder is communicated with while being used for firing powder automatic feed unit feed and uses with combustion powder automatic feed unit by pipeline.
Inert gas generator of the present invention, it is at described the first blower fan and O
2on the pipeline that gas analyzer is communicated with, be provided with the gas flow sensor being connected with controller.
Inert gas generator of the present invention, is provided with automatically controlled air door and the vacuum sensor being connected with controller on its pipeline being communicated with protected enclosed space at described the first blower fan.
Inert gas generator of the present invention; described in it, cooling unit comprises first step cooling filter and second stage cooling filter; the outlet of described rare gas element producer is communicated with first step cooling filter by pipeline; described first step cooling filter is communicated with second stage cooling filter by pipeline, and described second stage cooling filter is communicated with protected enclosed space by the second blower fan.
Inert gas generator of the present invention, described in it, second stage cooling filter is provided with temperature sensor, in described rare gas element producer, is provided with thermopair, and described temperature sensor is connected with controller respectively with thermopair.
Inert gas generator of the present invention, it is respectively arranged with import and export end safety valve at the described protected enclosed space of connection on the pipeline of end, and described first step cooling filter is communicated with water cooler safety valve by pipeline.
Inert gas generator of the present invention, is provided with check valve on the pipeline that its outlet at described rare gas element producer is communicated with first step cooling filter.
Inert gas generator of the present invention, described in it, protected enclosed space is communicated with corresponding import and export end safety valve by import and export end stopping valve respectively into and out of end.
The present invention utilize combustion powder under controllable temperature condition with protected enclosed space in mixed gas or airborne oxygen generation oxidizing reaction; mixed gas or airborne oxygen consumption are fallen, are improved to the concentration of carbonic acid gas; due to the strict temperature of reaction of controlling; guarantee in reaction process; do not produce CO, and CO does not occur
2reduction reaction.Mixed gas after combustion reactions or air its containing oxygen rate lower than combustion-supporting concentration conditions, and a nitrogen content wherein still remains on 78%, the gas producing through inert gas generator is: nitrogen, CO
2gas, O
2and other rare gas elementes, thereby guarantee the safety of protected enclosed space.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present invention.
Fig. 2, Fig. 3 and Fig. 4 are structural representations of the present invention.
Mark in figure: 1 is protected enclosed space, 2 is exit end stopping valve, and 3 is exit end safety valve, and 4 is automatically controlled air door, and 5 is vacuum sensor, and 6 is the first blower fan, and 7 is gas flow sensor, and 8 is O
2gas analyzer, 9 is O
2, CO gas analyzer, 10 is gas-holder, 11 is air compressor machine, 12 is combustion powder automatic feed unit, and 13 is controller, and 14 is rare gas element producer, 15 is thermopair, and 16 is first step cooling filter, and 17 is second stage cooling filter, 18 is temperature sensor, and 19 is the second blower fan, and 20 is two-position three way electrical ball valve, 21 is water cooler safety valve, 22 is entrance end safety valve, and 23 is entrance end stopping valve, and 24 is check valve.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As Figure 1-4, a kind of inert gas generator, comprises aerogenesis unit, detecting unit, cooling unit and controller 13.
Described aerogenesis unit comprise rare gas element producer 14 and with the combustion powder automatic feed unit 12 of rare gas element producer 14 internal communication, described combustion powder automatic feed unit comprises along rare gas element producer circumferential direction uniform some feed heads and compressed air station, storage tank, magnetic valve group, motor, material loading feed mechanism, feed-pipe, blow material pipe etc., inlet amount by motor according to electric control system to temperature sensor, the signal of the detection feedback of oxygen and CO (carbon monoxide converter) gas analyser, carry out automatic transmission, realized self-adaptation for amount, magnetic valve group is used to open or close the air intake blowing in material pipe, combustion powder is mainly carbon dust and iron powder.
Described detecting unit comprises O
2gas analyzer 8 and O
2, CO gas analyzer 9, described O
2gas analyzer 8 is for detection and the analysis to the oxygen concn of the gas in pipelines of this section of rare gas element producer to protected enclosed space, described O
2, CO gas analyzer 9 is for to the carbon monoxide concentration of rare gas element and the detection of oxygen concn and the analysis that generate through rare gas element producer.
Described cooling unit comprises band liquid level sensor first step cooling filter 16 and second stage cooling filter 17, for to cooling processing and the filtration treatment of the hot rare gas element generating through rare gas element producer and be respectively used to detect and feed back level condition in corresponding cooling filter.The rare gas element hot gas generating by rare gas element producer is through the water cooling filter type in device, because specific heat of water holds larger, normal temperature (20 degrees Celsius) is lower is 4.183kJ/ (Kg ℃), so only need less volume just can have good cooling-down effect, and make floor space little.The cooling unit adopting in this device is embed type, has greatly reduced taking of ground space.
Wherein, the outlet of described rare gas element producer 14 is communicated with first step cooling filter 16 by pipeline; described first step cooling filter 16 is communicated with second stage cooling filter 17 by pipeline; described second stage cooling filter 17 is communicated with protected enclosed space 1 by the second blower fan 19, described O
2the inlet end of gas analyzer 8 is communicated with protected enclosed space 1 by the first blower fan 6, and its outlet side is communicated with 14 imports of rare gas element producer by pipeline, and described first step cooling filter 16 is communicated with gas-holder 10 by air compressor machine 11, described O
2, CO gas analyzer 9 inlet, outlet end by pipeline, be communicated with gas-holder 10 respectively, described gas-holder 10 is communicated with while being used for firing 12 charging of powder automatic feed unit and uses with combustion powder automatic feed unit 12 by pipeline, described combustion powder automatic feed unit 12, O
2gas analyzer 8 and O
2, CO gas analyzer 9 is connected with controller 13 respectively; On the pipeline being communicated with protected enclosed space 1 at described the second blower fan 19, be provided with the two-position three way electrical ball valve 20 being connected with controller 13, described controller 13 is according to O
2, the result that detects of CO gas analyzer 9, control two-position three way electrical ball valve 20 and be communicated with protected enclosed space 1 or rare gas element producer 14 by pipeline.In rare gas element producer prime and rear class, adopt respectively gas concentration to detect analysis, by to the online detection of oxygen level in latter two situation gas before rare gas element producer, online detection to the carbon monoxide gas concentration of rear class, while having realized device automated cycle, carry out the switching that partial circulating still adopts systemic circulation operating mode.
Wherein, at described the first blower fan 6 and O
2on the pipeline that gas analyzer 8 is communicated with, be provided with the gas flow sensor 7 being connected with controller 13, for the detection of gas flow rate to air output, signal feedback regulated to inlet mouth automatically to automatically controlled air door.When first blower fan at the air intake place in this device is squeezed in the pipeline before rare gas element producer by inflammable gas in protected enclosed space by pipeline; because the gas of protected enclosed space is inflammable volatile gases; it is subject to the impact of static while flowing in pipeline; therefore need to control its flow velocity; adopt gas flow sensor to detect feedback to it; realize the control to flow velocity, guaranteed the safety of whole device and protected enclosed space.
On the pipeline being communicated with protected enclosed space 1 at described the first blower fan 6, be provided with automatically controlled air door 4 and the vacuum sensor 5 being connected with controller 13; described automatically controlled air door is for the adjusting to air output; described vacuum sensor; for detection to gas vacuum tightness in protected enclosed space, for the obstruction that prevents from causing because of machinery or electrical accident because of the pipeline valve group of device.Described second stage cooling filter 17 is provided with temperature sensor 18, in described rare gas element producer 14, be provided with thermopair 15, described temperature sensor 18 is connected with controller 13 respectively with thermopair 15, described thermopair is for detection and the feedback of the furnace temperature of rare gas element producer, and described temperature sensor is used for detecting and feedback through the cooled gas temperature of secondary.At the described protected enclosed space 1 of connection, on the pipeline of end, be respectively arranged with import and export end safety valve 22,3; described first step cooling filter 16 is communicated with water cooler safety valve 21 by pipeline, and three safety valve are respectively used to the decompression protection of the gaseous tension in the enclosed space of protector import and export end place and first step cooling filter.On the pipeline being communicated with first step cooling filter 16 in the outlet of described rare gas element producer 14, be provided with check valve 24; Being communicated with corresponding import and export end safety valve 22,3 by import and export end stopping valve 23,2 respectively into and out of end of described protected enclosed space 1.
This device and protected enclosed space have formed the interior circular channel of a sealing; realized the reduction of the oxygen level of guard space inflammable gas has been controlled; inflammable gas in protected space burns and reduces because being drawn in rare gas element producer; the rare gas element that the enclosed space of whole protected object is generated by device is constantly full of; even take; make whole guard space no longer possess the condition of burning, thus the fire of having avoided inflammable object burning in protected space or having caused because of thunderbolt, static etc.Wherein, adopt combustion powder automatic feed unit, by motor automatic speed regulation, automatically control the combustion inlet amount of powder and the continuous variation of the oxygen content in rare gas element producer air intake place gas, thereby the self-adaptation that realizes combustion powder regulates, the perfect combustion chemical reaction carrying out at a certain temperature to meet combustion powder and oxygen, apparatus of the present invention are driven into protected space using the carbon dioxide generating through rare gas element producer as rare gas element and play inactive protect effect after device cold filtration is processed, in addition, the rare gas element that can also generate by this device is directly used in fire extinguishing or is stored up.And, employing detects and feedback the furnace temperature of rare gas element producer, realized the perfect combustion of combustion powder and oxygen in the temperature range of its regulation, avoided the incomplete combustion of the too low generation of Yin Wendu or the reduction reaction that excess Temperature produces, and these two kinds of situations all can produce carbon monoxide inflammable gas.
Principle of work of the present invention:
The first blower fan is extracted the gas of protected enclosed space out, through gas flow sensor and O
2gas analyzer enters rare gas element producer.Gas flow sensor and O
2gas analyzer is by surveyed data input controller; After the gas of rare gas element producer and the fuel mix reaction of automatic feeder input, after check valve enters first step cooling filter, enter again second stage cooling filter, the rare gas element of process first step cooling filter is through air compressor machine, squeeze into gas-holder, during for combustion powder automatic feed unit feed, while O
2, oxygen content and carbon monoxide content input control device after CO gas analyzer detection reaction, controller is according to O
2, the result that detects of CO gas analyzer, control two-position three way electrical ball valve and switch accordingly.
Work as O
2, the detected data of CO gas analyzer are during higher than set(ting)value, two-position three way electrical ball valve is returned rare gas element producer again by reacted rare gas element, carries out secondary reaction; Work as O
2, the detected data of CO gas analyzer are during lower than set(ting)value, two-position three way electrical ball valve is returned protected enclosed space by the rare gas element after cold filtration through the second blower fan.
Wherein, the protected enclosed space of daily monitoring when the oxygen rate operating mode, only need start O
2gas analyzer and O
2, CO gas analyzer and first and second blower fan.Now, two detected oxygen contents of gas analyzer should equate and lower than the higher limit of setting, in this operating mode, and the rare gas element producer just gas passage of not working.
On the cooling filter of the second stage, be provided with temperature sensor, measure rare gas element temperature, when temperature surpasses prescribed value, controller can be shut down; In rare gas element producer, thermopair is housed, controls reaction furnace temperature, guarantee the normal operation of Reaktionsofen; On the level water cooler of the front and back of protected enclosed space pipeline, safety valve is housed, guarantees that whole system, can safe operation when there is operation irregularity.There are working condition display interface and working condition automatic alarm and the information transmission system in controller interface, at any time system health is reported to staff.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an inert gas generator, it is characterized in that: comprise aerogenesis unit, detecting unit, cooling unit and controller (13), described aerogenesis unit comprise rare gas element producer (14) and with the combustion powder automatic feed unit (12) of rare gas element producer (14) internal communication, described detecting unit comprises O
2gas analyzer (8) and O
2, CO gas analyzer (9), described cooling unit comprises at least one group of water cooler, described O
2the inlet end of gas analyzer (8) is communicated with protected enclosed space (1) by the first blower fan (6); its outlet side is communicated with rare gas element producer (14) import by pipeline; the outlet of described rare gas element producer (14) is communicated with water cooler by pipeline; described water cooler is communicated with protected enclosed space (1) by the second blower fan (19), described O
2, CO gas analyzer (9) is communicated with water cooler by pipeline, described combustion powder automatic feed unit (12), O
2gas analyzer (8) and O
2, CO gas analyzer (9) is connected with controller (13) respectively.
2. inert gas generator according to claim 1; it is characterized in that: on the pipeline being communicated with protected enclosed space (1) at described the second blower fan (19), be provided with the two-position three way electrical ball valve (20) being connected with controller (13), described controller (13) is according to O
2, the result that detects of CO gas analyzer (9), control two-position three way electrical ball valve (20) and be communicated with protected enclosed space (1) or rare gas element producer (14) by pipeline.
3. inert gas generator according to claim 2, is characterized in that: described water cooler is communicated with gas-holder (10) by air compressor machine (11), described O
2, CO gas analyzer (9) inlet, outlet end by pipeline, be communicated with gas-holder (10) respectively, described gas-holder (10) is communicated with while being used for firing powder automatic feed unit (12) charging and uses with combustion powder automatic feed unit (12) by pipeline.
4. inert gas generator according to claim 3, is characterized in that: at described the first blower fan (6) and O
2on the pipeline that gas analyzer (8) is communicated with, be provided with the gas flow sensor (7) being connected with controller (13).
5. inert gas generator according to claim 4, is characterized in that: on the pipeline being communicated with protected enclosed space (1) at described the first blower fan (6), be provided with automatically controlled air door (4) and the vacuum sensor (5) being connected with controller (13).
6. according to the inert gas generator described in any one in claim 1 to 5; it is characterized in that: described cooling unit comprises first step cooling filter (16) and second stage cooling filter (17); the outlet of described rare gas element producer (14) is communicated with first step cooling filter (16) by pipeline; described first step cooling filter (16) is communicated with second stage cooling filter (17) by pipeline, and described second stage cooling filter (17) is communicated with protected enclosed space (1) by the second blower fan (19).
7. inert gas generator according to claim 6, it is characterized in that: described second stage cooling filter (17) is provided with temperature sensor (18), in described rare gas element producer (14), be provided with thermopair (15), described temperature sensor (18) is connected with controller (13) respectively with thermopair (15).
8. inert gas generator according to claim 7; it is characterized in that: at the described protected enclosed space of connection (1), on the pipeline of end, be respectively arranged with import and export end safety valve (22,3), described first step cooling filter (16) is communicated with water cooler safety valve (21) by pipeline.
9. inert gas generator according to claim 8, is characterized in that: on the pipeline being communicated with first step cooling filter (16) in the outlet of described rare gas element producer (14), be provided with check valve (24).
10. inert gas generator according to claim 8, is characterized in that: described protected enclosed space (1) into and out of end respectively by import and export end stopping valve (23,2) and corresponding import and export end safety valve (22,3) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310564803.5A CN103601164B (en) | 2013-11-14 | 2013-11-14 | Inert gas generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310564803.5A CN103601164B (en) | 2013-11-14 | 2013-11-14 | Inert gas generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103601164A true CN103601164A (en) | 2014-02-26 |
| CN103601164B CN103601164B (en) | 2015-06-17 |
Family
ID=50119454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310564803.5A Active CN103601164B (en) | 2013-11-14 | 2013-11-14 | Inert gas generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103601164B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851608A (en) * | 2014-03-07 | 2014-06-11 | 四川威特龙消防设备有限公司 | Inert gas generator |
| CN103848423A (en) * | 2014-03-07 | 2014-06-11 | 四川威特龙消防设备有限公司 | Cyclic closed type inert gas generating device of coal mine goaf |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481145Y (en) * | 2001-03-29 | 2002-03-13 | 蒋习锋 | Apparatus for transforming oxygen in grain or fruit storage into carbon dioxide |
| CN203043373U (en) * | 2012-12-03 | 2013-07-10 | 煤炭科学研究总院 | Inertia gas protecting device |
| CN203545682U (en) * | 2013-11-14 | 2014-04-16 | 四川威特龙消防设备有限公司 | Inert gas generating device |
-
2013
- 2013-11-14 CN CN201310564803.5A patent/CN103601164B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851608A (en) * | 2014-03-07 | 2014-06-11 | 四川威特龙消防设备有限公司 | Inert gas generator |
| CN103848423A (en) * | 2014-03-07 | 2014-06-11 | 四川威特龙消防设备有限公司 | Cyclic closed type inert gas generating device of coal mine goaf |
| CN103848423B (en) * | 2014-03-07 | 2015-11-04 | 威特龙消防安全集团股份公司 | Circulation closed type coal mine gob inert gas generator |
| CN103851608B (en) * | 2014-03-07 | 2016-02-03 | 威特龙消防安全集团股份公司 | A kind of inert gas producer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103601164B (en) | 2015-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4083701A (en) | Process and apparatus for removing undesirable gases from flue gases | |
| CN105381694B (en) | A kind of coal mine methane and the blending processing system to draw out methane | |
| AU2009328855A1 (en) | A method for destroying coal mine low concentration methane gas and an apparatus thereof | |
| CN210219809U (en) | Explosion-proof type RTO processing apparatus | |
| CN102344987B (en) | Primary flue gas dry dedusting process for vanadium recovering converter | |
| CN206469276U (en) | A kind of heat accumulating type catalytic burning device | |
| CN206792839U (en) | A kind of novel coal mill inerting system | |
| CN103601164B (en) | Inert gas generating device | |
| CN102373312A (en) | Primary fume dry method dedusting system of vanadium recovery converter | |
| KR100913888B1 (en) | Carbon dioxide purification method and equipment for waste gas of process using pure oxygen combustion | |
| CN203545682U (en) | Inert gas generating device | |
| CN215892383U (en) | Air distribution system for low-calorific-value waste gas treatment | |
| CN201653133U (en) | Heat accumulating type lead-liquating boiler | |
| CN211475964U (en) | Tank field high concentration styrene exhaust-gas treatment system | |
| CN203903999U (en) | Circular closed type coal mine goaf inert gas generation device | |
| CN103848423B (en) | Circulation closed type coal mine gob inert gas generator | |
| CN214623383U (en) | Safety control system for environmental monitoring of indoor closed coal yard | |
| CN112146208B (en) | Control method of independently circulating explosion-proof air conditioning system | |
| CN102337375B (en) | Dry dedusting system for primary flue gas from vanadium extraction converter | |
| CN112817265A (en) | Safety control system and management method for environmental monitoring of indoor closed coal yard | |
| EP3188805A1 (en) | Prevention of combustion in storage silos | |
| CN102927579B (en) | Coal pulverizing system | |
| CN208546200U (en) | A kind of gas regenerative oxidation safe-guard system | |
| US3400650A (en) | Controlled atmosphere storage system for plant material | |
| CN203558849U (en) | Sulphur storage tail gas and liquid sulphur degassing comprehensive treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 611731 Chengdu high tech West West Road, No. 99, attached to No. 9, No. Applicant after: VITALONG FIRE SAFETY GROUP Co.,Ltd. Address before: 611731 Chengdu high tech West West Road, No. 99, attached to No. 9, No. Applicant before: SICHUAN WEITELONG FIREFIGHTING EQUIPMENT Co.,Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SICHUAN WEITELONG FIRE EQUIPMENT CO., LTD. TO: VITALONG FIREFIGHTING SAFETY GROUP CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An inert gas generation device Effective date of registration: 20230327 Granted publication date: 20150617 Pledgee: Chengdu Rural Commercial Bank Co.,Ltd. Guixi Sub branch Pledgor: VITALONG FIRE SAFETY GROUP Co.,Ltd. Registration number: Y2023510000081 |