CN103306716B - Heat storage and oxidation system for ventilation air gas and united pre-heat starting method of heat storage and oxidation system - Google Patents
Heat storage and oxidation system for ventilation air gas and united pre-heat starting method of heat storage and oxidation system Download PDFInfo
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Abstract
The invention discloses a heat storage and oxidation system for ventilation air gas and a united pre-heat starting method of the heat storage and oxidation system. The heat storage and oxidation system comprises a ventilation air gas inlet pipe, at least two gas heat storage and oxidation devices and a flue gas outlet pipe, wherein the ventilation air gas inlet pipe is communicated with the outlet of a coal mine air shaft; the gas heat storage and oxidation devices are sequentially communicated with the ventilation air gas inlet pipe; the flue gas outlet pipe is sequentially communicated with the heat storage and oxidation devices; an air inlet valve and an air outlet valve are arranged between the ventilation air gas inlet pipe and each heat storage and oxidation device as well as between the flue gas outlet pipe and each heat storage and oxidation device; the heat storage and oxidation system further comprises a flue gas extraction pipe and an air extraction pump I which is communicated with the flue gas extraction pipe and used for extracting flue gas in the first oxidation device I; an air extraction valve is arranged between the flue gas extraction pipe and each heat storage and oxidation device; a preheating device is arranged only in the heat storage and oxidation device I closest to the outlet of the coal mine air shaft. According to the invention, the preheating device is arranged only in the heat storage and oxidation device I closest to the outlet of the coal mine air shaft, and the heat storage and oxidation device can perform pre-heat starting jointly with the heat storage and oxidation system, so that the repeated configuration of the preheating device is reduced, and a great amount of investment and energy are saved.
Description
Technical field
Drawing-off gas method or the device field of other objects the invention belongs to for or be not used in, a kind of ventilation air gas regenerative oxidation system and associating preheating starting method thereof specifically related to.
Background technology
Coal mine to ventilate mash gas is also known as ventilation air gas, in ventilation air gas methane content low and lack effectively utilize means, normally adopt and directly ventilation air gas is entered air, on the one hand according to relevant statistics, the methane content entered in air by weary wind for 2008 has reached 16,100,000,000 m
3, research shows that methane greenhouse effect are about 21 times of carbon dioxide on the other hand, extremely strong to environmental destruction, and therefore ventilation air gas is recycled and had energy saving standard double meaning.
In ventilation air gas, methane content is low, cannot directly be lighted or be maintained burning, this is the difficult point developing ventilation air gas, along with people are to the attention of the energy and environmental problem, the domestic and international process to ventilation air gas and energy regenerating utilize technology to pay close attention to all the more, the oxidation of current ventilation air gas utilizes the hot counter flow oxidation technology of many employings, its operating principle is: by auxiliary heating means, oxidation bed core is heated to high temperature when device starts, formation central temperature is high, the thermal field that both sides temperature is low, ventilation air gas initially passes through honeycomb ceramic heat accumulator from a direction, in flow process, absorb thermal temperature raise gradually and rapid oxidation, high-temperature flue gas after oxidation continues flowing and is heated by follow-up heat storage, flue gas own temperature discharges reactor after reducing, after some cycles, airflow-reversing, so moves in circles, and systems stay runs.
It is general very large that coal mine air-shaft exports weary wind flow, can reach tens sides/hour, and at present separate unit ventilation air gas regenerative oxidation device maximum throughput generally at 60,000 m
3about/h is 600,000 m with a weary wind flow
3the outlet of/h ventilating shaft is example, its configurable 10 ventilation air gas regenerative oxidation devices, current present situation is that every platform ventilation air gas regenerative oxidation device all can configure electric heater or combustion oil/gas pre-heating system, and pre-heating system only uses when device starts, frequency of utilization is very low, every table apparatus all configures the repeated configuration that pre-heating system causes resource, needs at substantial to invest, and causes the waste of resource.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of ventilation air gas regenerative oxidation system and associating preheating starting method thereof, this ventilation air gas regenerative oxidation system by being only provided with preheating device in First ventilation air gas regenerative oxidation device, the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation can be reached, reduce the repeated configuration of preheating device, the resource of effective utilization, saves great amount of investment and the energy.
In order to achieve the above object, a kind of ventilation air gas regenerative oxidation of the present invention system, comprise the ventilation air gas air inlet pipe with coal mine air-shaft outlet, the gas regenerative oxidation device being no less than 2 and the flue gas escape pipe be communicated with oxidation unit is successively communicated with successively with ventilation air gas air inlet pipe, admission valve and air outlet valve is provided with respectively between described ventilation air gas air inlet pipe and flue gas escape pipe and every platform oxidation unit, also comprise fume extraction pipe and be communicated with fume extraction pipe and aspiration pump I for extracting flue gas in First oxidation unit I, extraction valve is provided with between described fume extraction pipe and every platform oxidation unit, preheating device is provided with in oxidation unit I only closest to coal mine air-shaft outlet in described oxidation unit.
Further, described aspiration pump I entrance is arranged on the high-temperature region near heat storage in oxidation unit I.
Further, described preheating device is set to electric heater or combustion oil/gas heater.
Present invention further teaches the system combined preheating starting method of a kind of ventilation air gas regenerative oxidation, its step is as follows:
1) admission valve I be communicated with oxidation unit I and air outlet valve I is opened, a small amount of ventilation air gas is made to pass into oxidation unit I, open preheating device, carry out preheating to the ventilation air gas entered in oxidation unit I, heat storage body when the ventilation air gas be preheated after device heating flows through oxidation bed, until oxidation unit I internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close preheating device, and pass into the ventilation air gas of rated capacity, make oxidation unit I enter normal operating conditions, oxidation unit I has started;
2) start aspiration pump I and open the extraction valve I be communicated with aspiration pump I, from oxidation unit I extracting high-temperature flue gas, making high-temperature flue gas be filled with fume extraction pipe;
3) extraction valve II between second oxidation unit II and fume extraction pipe is opened, high-temperature flue gas in fume extraction pipe is filled with oxidation unit II by extraction valve II, high-temperature flue gas carries out preheating to the thermal storage ceramic entered in oxidation unit II, until oxidation unit II internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close extraction valve II, stop carrying high-temperature flue gas in oxidation unit II, open the admission valve II and air outlet valve II that are communicated with second oxidation unit II, ventilation air gas is made to pass into this oxidation unit II, pass into the ventilation air gas of rated capacity, oxidation unit II is made to enter normal operating conditions, oxidation unit II has started,
4) according to step 2) course of action continue pipeline start up by preheating is carried out to next oxidation unit, until all oxidation units have all started, realized the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation.
Present invention further teaches another kind of ventilation air gas regenerative oxidation system, comprise the ventilation air gas air inlet pipe with coal mine air-shaft outlet, what be communicated with ventilation air gas air inlet pipe successively is no less than the gas regenerative oxidation device of 3 and the flue gas escape pipe be communicated with oxidation unit successively, admission valve and air outlet valve is provided with respectively between described ventilation air gas air inlet pipe and flue gas escape pipe and every platform oxidation unit, fume extraction pipe I is provided with between described First oxidation unit I and second oxidation unit II, aspiration pump I and extraction valve I, fume extraction pipe II is provided with between described second oxidation unit II and the 3rd oxidation unit III, aspiration pump II and extraction valve II, the like, preheating device is provided with in oxidation unit I only closest to coal mine air-shaft outlet in described oxidation unit.
Present invention further teaches the system combined preheating starting method of another kind of ventilation air gas regenerative oxidation, its step is as follows:
1) admission valve I be communicated with oxidation unit I and air outlet valve I is opened, ventilation air gas is made to pass into oxidation unit I, open preheating device, carry out preheating to the ventilation air gas entered in oxidation unit I, heat storage body when the ventilation air gas be preheated after device heating flows through oxidation bed, until oxidation unit I internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close preheating device, and pass into the ventilation air gas of rated capacity, make oxidation unit I enter normal operating conditions, oxidation unit I has started;
2) start aspiration pump I and open the extraction valve I be communicated with aspiration pump I, from oxidation unit I extracting high-temperature flue gas, and be filled with oxidation unit II by fume extraction pipe, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit II, until oxidation unit II internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close aspiration pump I and extraction valve I, stop carrying high-temperature flue gas in oxidation unit II, open the admission valve II and air outlet valve II that are communicated with second oxidation unit II, ventilation air gas is made to pass into this oxidation unit II, pass into the ventilation air gas of rated capacity, oxidation unit II is made to enter normal operating conditions, oxidation unit II has started,
3) start aspiration pump II and open the extraction valve II be communicated with aspiration pump II, from oxidation unit II extracting high-temperature flue gas, and be filled with oxidation unit III by fume extraction pipe I, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit III, until oxidation unit III internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close aspiration pump II and extraction valve II, stop carrying high-temperature flue gas in oxidation unit III, open and the 3rd admission valve that oxidation unit III is communicated with III and air outlet valve III, ventilation air gas is made to pass into this oxidation unit III, pass into the ventilation air gas of rated capacity, oxidation unit III is made to enter normal operating conditions, oxidation unit II has started,
4) course of action according to step 3) continues to carry out pipeline start up by preheating to next oxidation unit, until all oxidation units have all started, realizes the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation.
Beneficial effect of the present invention is:
Ventilation air gas regenerative oxidation system of the present invention and associating preheating starting method thereof by being provided with preheating device in First ventilation air gas regenerative oxidation device, other ventilation air gas regenerative oxidation device be communicated with First ventilation air gas regenerative oxidation device successively then utilizes the high-temperature flue gas extracted from/last the ventilation air gas regenerative oxidation device high-temperature area started to carry out pipeline start up by preheating by platform, this ventilation air gas regenerative oxidation system and associating preheating starting method thereof are by only configuring a preheating device, the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation can be reached, reduce the repeated configuration of preheating device, the resource of effective utilization, save great amount of investment and the energy.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of ventilation air gas regenerative oxidation system of the present invention;
Fig. 2 is the schematic diagram of the another kind of embodiment of ventilation air gas regenerative oxidation system of the present invention.
Reference numeral: 1-ventilation air gas air inlet pipe; 2-extraction valve I; 3-admission valve I; 4-air outlet valve I; 5-extraction valve II; 6-admission valve II; 7-air outlet valve II; 8-extraction valve III; 9-admission valve III; 10-air outlet valve III; 11-fume extraction pipe; 12-flue gas escape pipe; 13-oxidation unit III; 14-oxidation unit II; 15-preheating device; 16-oxidation unit I; 17-aspiration pump I; 18-aspiration pump II; 19-fume extraction pipeline I.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Embodiment one
Be illustrated in figure 1 the schematic diagram of ventilation air gas regenerative oxidation system of the present invention, the present invention relates to a kind of ventilation air gas regenerative oxidation system, comprise the ventilation air gas air inlet pipe 1 with coal mine air-shaft outlet, the gas regenerative oxidation device being no less than 2 and the flue gas escape pipe 12 be communicated with oxidation unit is successively communicated with successively with ventilation air gas air inlet pipe 1, admission valve and air outlet valve is provided with respectively between described ventilation air gas air inlet pipe 1 and flue gas escape pipe 12 and every platform oxidation unit, also comprise fume extraction pipe 12 and be communicated with fume extraction pipe 12 and aspiration pump I 17 for extracting flue gas in First oxidation unit I 16, extraction valve is provided with between described fume extraction pipe 12 and every platform oxidation unit, preheating device 15 is provided with in oxidation unit I 16 only closest to coal mine air-shaft outlet in described oxidation unit, three are set to for gas regenerative oxidation device in the present embodiment, be respectively oxidation unit I 16, oxidation unit II 14 and oxidation unit III 13, the present embodiment by being provided with preheating device 15 in First ventilation air gas regenerative oxidation device I 16, the oxidation unit II 14 be communicated with First ventilation air gas regenerative oxidation device I 16 successively and oxidation unit III 13 utilize the high-temperature flue gas extracted from First ventilation air gas regenerative oxidation device I 16 high-temperature area started to carry out pipeline start up by preheating by platform, this ventilation air gas regenerative oxidation system and associating preheating starting method thereof are by only configuring a preheating device, the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation can be reached, reduce the repeated configuration of preheating device, the resource of effective utilization, save great amount of investment and the energy.
Further, described aspiration pump I entrance is arranged on the high-temperature region near heat storage in oxidation unit I 16, and in the present embodiment, heat storage is set to thermal storage ceramic.
Further, described preheating device 15 is set to electric heater or combustion oil/gas heater, and the preferred preheating device 15 of the present embodiment is set to electric heater.
Present invention further teaches the system combined preheating starting method of a kind of ventilation air gas regenerative oxidation, its step is as follows:
1) admission valve I 3 be communicated with oxidation unit I and air outlet valve I 4 is opened, ventilation air gas is made to pass into oxidation unit I 16, open preheating device 15, preheating is carried out to the ventilation air gas entered in oxidation unit I 16, the ventilation air gas be preheated after device 15 heating flows through oxidation bed heat storage body, until oxidation unit I 16 internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close preheating device 16, and pass into the ventilation air gas of rated capacity, oxidation unit I 16 is made to enter normal operating conditions, oxidation unit I 16 has started, this step mid-early stage makes a small amount of ventilation air gas from entering oxidation unit I 16 by controlling admission valve I 3, be preheated after device 15 heats and flow through oxidation bed heat storage body, discharge from flue gas escape pipe 12 finally by air outlet valve I 4, when flowing through oxidation bed heat storage body, gas flow direction periodically switches, the thermal field making oxidation bed form height to bend down, until high-temperature region thermal storage ceramic temperature reaches 800-1000 DEG C, now close pre-heating system, increase the ventilation air gas amount entering oxidation unit I 16, make it the specified treating capacity reaching oxidation unit I 16, oxidation unit I 16 reaches stable state after continuous service a period of time, oxidation unit I 16 pipeline start up by preheating completes.
2) start aspiration pump I 17 and open the extraction valve I 2 be communicated with aspiration pump I 17, from oxidation unit I 16 extracting high-temperature flue gas, making high-temperature flue gas be filled with fume extraction pipe 11;
3) extraction valve II 5 between second oxidation unit II 14 and fume extraction pipe 11 is opened, high-temperature flue gas in fume extraction pipe 11 is filled with oxidation unit II 14 by extraction valve II 5, the heat-storing material that high-temperature flue gas enters in oxidation unit II 14 carries out preheating, until oxidation unit II 14 internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close extraction valve II 5, stop carrying high-temperature flue gas in oxidation unit II 14, open the admission valve II 6 and air outlet valve II 7 that are communicated with second oxidation unit II 14, ventilation air gas is made to pass into this oxidation unit II 14, pass into the ventilation air gas of rated capacity, oxidation unit II 14 is made to enter normal operating conditions, oxidation unit II 14 has started, 4) the 3rd extraction valve III 8 between oxidation unit III 13 and fume extraction pipe 11 is opened, high-temperature flue gas in fume extraction pipe 11 is filled with oxidation unit III 13 by extraction valve III 8, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit III 13, until oxidation unit III 13 internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close extraction valve III 8, stop carrying high-temperature flue gas in oxidation unit III 13, open and the 3rd admission valve that oxidation unit III 13 is communicated with III 9 and air outlet valve III 10, ventilation air gas is made to pass into this oxidation unit III 13, pass into the ventilation air gas of rated capacity, oxidation unit III 13 is made to enter normal operating conditions, oxidation unit III 13 has started.
Embodiment two
Be illustrated in figure 2 the schematic diagram of the another kind of embodiment of ventilation air gas regenerative oxidation system of the present invention.Present invention further teaches another kind of ventilation air gas regenerative oxidation system and comprise the ventilation air gas air inlet pipe 1 with coal mine air-shaft outlet, what be communicated with ventilation air gas air inlet pipe 1 successively is no less than the gas regenerative oxidation device of 3 and the flue gas escape pipe 12 be communicated with oxidation unit successively, admission valve and air outlet valve is provided with respectively between described ventilation air gas air inlet pipe 1 and flue gas escape pipe 12 and every platform oxidation unit, fume extraction pipe 11 is provided with between described First oxidation unit I 16 and second oxidation unit II 14, aspiration pump I 17 and extraction valve I 3, fume extraction pipe I 19 is provided with between described second oxidation unit II 14 and the 3rd oxidation unit III 13, aspiration pump II 18 and extraction valve II 5, the like, preheating device 15 is provided with in oxidation unit I 16 only closest to coal mine air-shaft outlet in described oxidation unit, the present embodiment by being provided with preheating device 15 in First ventilation air gas regenerative oxidation device I 16, the oxidation unit II 14 be communicated with First ventilation air gas regenerative oxidation device I 16 successively and oxidation unit III 13 utilize the high-temperature flue gas extracted from last ventilation air gas regenerative oxidation device I 16 high-temperature area started to carry out pipeline start up by preheating by platform, this ventilation air gas regenerative oxidation system and associating preheating starting method thereof are by only configuring a preheating device, the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation can be reached, reduce the repeated configuration of preheating device, the resource of effective utilization, save great amount of investment and the energy, this structure is compared the associating pipeline start up by preheating that embodiment one is conducive between more number of units oxidation unit, avoid the transport of the high-temperature flue gas between long distance.
Present invention further teaches the system combined preheating starting method of another kind of ventilation air gas regenerative oxidation, its step is as follows:
1) admission valve I 3 be communicated with oxidation unit I 16 and air outlet valve I 4 is opened, ventilation air gas is made to pass into oxidation unit I 16, open preheating device 15, preheating is carried out to the ventilation air gas entered in oxidation unit I 16, the ventilation air gas be preheated after device 15 heating flows through oxidation bed heat storage body, until oxidation unit I 16 internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close preheating device 15, and pass into the ventilation air gas of rated capacity, make oxidation unit I 16 enter normal operating conditions, oxidation unit I 16 has started;
2) start aspiration pump I 17 and open the extraction valve I 2 be communicated with aspiration pump I 17, from oxidation unit I 16 extracting high-temperature flue gas, and be filled with oxidation unit II 14 by fume extraction pipe 11, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit II 14, until oxidation unit II 14 internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close aspiration pump I 6 and extraction valve I 7, stop carrying high-temperature flue gas in oxidation unit II 14, open the admission valve II 6 and air outlet valve II 7 that are communicated with second oxidation unit II 14, ventilation air gas is made to pass into this oxidation unit II 14, pass into the ventilation air gas of rated capacity, oxidation unit II 14 is made to enter normal operating conditions, oxidation unit II 14 has started,
3) start aspiration pump II 18 and open the extraction valve II 5 be communicated with aspiration pump II 18, from oxidation unit II 14 extracting high-temperature flue gas, and be filled with oxidation unit III 13 by fume extraction pipe I 19, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit III 13, until oxidation unit III 13 internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close aspiration pump II 9 and extraction valve II 10, stop carrying high-temperature flue gas in oxidation unit III 13, open and the 3rd admission valve that oxidation unit III 13 is communicated with III 9 and air outlet valve III 10, ventilation air gas is made to pass into this oxidation unit III 13, pass into the ventilation air gas of rated capacity, oxidation unit III 13 is made to enter normal operating conditions, oxidation unit II has started,
4) course of action according to step 3) continues to carry out pipeline start up by preheating to next oxidation unit, until all oxidation units have all started, realizes the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (3)
1. utilize an associating preheating starting method for ventilation air gas regenerative oxidation system,
Described ventilation air gas regenerative oxidation system comprises: with the ventilation air gas air inlet pipe of coal mine air-shaft outlet, the gas regenerative oxidation device being no less than 2 and the flue gas escape pipe be communicated with oxidation unit is successively communicated with successively with ventilation air gas air inlet pipe, admission valve and air outlet valve is provided with respectively between described ventilation air gas air inlet pipe and flue gas escape pipe and every platform oxidation unit, also comprise fume extraction pipe and be communicated with fume extraction pipe and aspiration pump I for extracting flue gas in First oxidation unit I, extraction valve is provided with between described fume extraction pipe and every platform oxidation unit, preheating device is provided with in oxidation unit I only closest to coal mine air-shaft outlet in described oxidation unit, described aspiration pump I entrance is arranged on the high-temperature region near heat storage in oxidation unit I, described preheating device is set to electric heater or combustion oil/gas heater,
It is characterized in that: its step is as follows:
1) admission valve I be communicated with oxidation unit I and air outlet valve I is opened, a small amount of ventilation air gas is made to pass into oxidation unit I, open preheating device, carry out preheating to the ventilation air gas entered in oxidation unit I, heat storage body when the ventilation air gas be preheated after device heating flows through oxidation bed, until oxidation unit I internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close preheating device, and pass into the ventilation air gas of rated capacity, make oxidation unit I enter normal operating conditions, oxidation unit I has started;
2) start aspiration pump I and open the extraction valve I be communicated with aspiration pump I, from oxidation unit I extracting high-temperature flue gas, making high-temperature flue gas be filled with fume extraction pipe;
3) extraction valve II between second oxidation unit II and fume extraction pipe is opened, high-temperature flue gas in fume extraction pipe is filled with oxidation unit II by extraction valve II, high-temperature flue gas carries out preheating to the thermal storage ceramic entered in oxidation unit II, until oxidation unit II internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close extraction valve II, stop carrying high-temperature flue gas in oxidation unit II, open the admission valve II and air outlet valve II that are communicated with second oxidation unit II, ventilation air gas is made to pass into this oxidation unit II, pass into the ventilation air gas of rated capacity, oxidation unit II is made to enter normal operating conditions, oxidation unit II has started,
4) according to step 2) course of action continue pipeline start up by preheating is carried out to next oxidation unit, until all oxidation units have all started, realized the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation.
2. a ventilation air gas regenerative oxidation system, comprise the ventilation air gas air inlet pipe with coal mine air-shaft outlet, what be communicated with ventilation air gas air inlet pipe successively is no less than the gas regenerative oxidation device of 3 and the flue gas escape pipe be communicated with oxidation unit successively, admission valve and air outlet valve is provided with respectively between described ventilation air gas air inlet pipe and flue gas escape pipe and every platform oxidation unit, it is characterized in that: between First oxidation unit I and second oxidation unit II, be provided with fume extraction pipe, aspiration pump I and extraction valve I, fume extraction pipe I is provided with between described second oxidation unit II and the 3rd oxidation unit III, aspiration pump II and extraction valve II, the like, preheating device is provided with in oxidation unit I only closest to coal mine air-shaft outlet in described oxidation unit.
3. utilize an associating preheating starting method for the ventilation air gas regenerative oxidation system described in claim 2, it is characterized in that: its step is as follows:
1) admission valve I be communicated with oxidation unit I and air outlet valve I is opened, ventilation air gas is made to pass into oxidation unit I, open preheating device, carry out preheating to the ventilation air gas entered in oxidation unit I, heat storage body when the ventilation air gas be preheated after device heating flows through oxidation bed, until oxidation unit I internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close preheating device, and pass into the ventilation air gas of rated capacity, make oxidation unit I enter normal operating conditions, oxidation unit I has started;
2) start aspiration pump I and open the extraction valve I be communicated with aspiration pump I, from oxidation unit I extracting high-temperature flue gas, and be filled with oxidation unit II by fume extraction pipe, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit II, until oxidation unit II internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close aspiration pump I and extraction valve I, stop carrying high-temperature flue gas in oxidation unit II, open the admission valve II and air outlet valve II that are communicated with second oxidation unit II, ventilation air gas is made to pass into this oxidation unit II, pass into the ventilation air gas of rated capacity, oxidation unit II is made to enter normal operating conditions, oxidation unit II has started,
3) start aspiration pump II and open the extraction valve II be communicated with aspiration pump II, from oxidation unit II extracting high-temperature flue gas, and be filled with oxidation unit III by fume extraction pipe I, high-temperature flue gas carries out preheating to the heat-storing material entered in oxidation unit III, until oxidation unit III internal oxidition bed tempertaure reaches 800 ~ 1000 DEG C, close aspiration pump II and extraction valve II, stop carrying high-temperature flue gas in oxidation unit III, open and the 3rd admission valve that oxidation unit III is communicated with III and air outlet valve III, ventilation air gas is made to pass into this oxidation unit III, pass into the ventilation air gas of rated capacity, oxidation unit III is made to enter normal operating conditions, oxidation unit II has started,
4) course of action according to step 3) continues to carry out pipeline start up by preheating to next oxidation unit, until all oxidation units have all started, realizes the system combined pipeline start up by preheating of ventilation air gas regenerative oxidation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310277231.2A CN103306716B (en) | 2013-07-03 | 2013-07-03 | Heat storage and oxidation system for ventilation air gas and united pre-heat starting method of heat storage and oxidation system |
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| CN201310277231.2A CN103306716B (en) | 2013-07-03 | 2013-07-03 | Heat storage and oxidation system for ventilation air gas and united pre-heat starting method of heat storage and oxidation system |
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| CN104785098A (en) * | 2015-02-26 | 2015-07-22 | 广州朗谱新能源科技有限公司 | Compact type gas oxidation apparatus |
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| US5417927A (en) * | 1994-03-21 | 1995-05-23 | Houston; Reagan | Low NOx, low fuel regenerative incinerator system |
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