CN104612652A - Nozzle - Google Patents
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- CN104612652A CN104612652A CN201510044198.8A CN201510044198A CN104612652A CN 104612652 A CN104612652 A CN 104612652A CN 201510044198 A CN201510044198 A CN 201510044198A CN 104612652 A CN104612652 A CN 104612652A
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- Prior art keywords
- nozzle
- water
- outlet pipe
- nozzle body
- water leg
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000000498 cooling water Substances 0.000 claims abstract description 49
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000002309 gasification Methods 0.000 abstract description 33
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 22
- 238000002485 combustion reaction Methods 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000003064 anti-oxidating effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Nozzles (AREA)
- Air Supply (AREA)
Abstract
A nozzle includes a nozzle body. A water leg, a water inlet pipe and a water outlet pipe are arranged in the nozzle body, wherein the water inlet pipe and the water outlet pipe are communicated with the water leg respectively. Cooling water enters the water leg via the water inlet pipe to cool the nozzle body, and the cooling water in the water leg flows into the water outlet pipe. A water source and a water pump ceaselessly deliver the cooling water to the water inlet pipe, the cooling water flows to the water outlet pipe after passing through the water leg, and the cooling water in the water leg cools the nozzle body. Accordingly, influences, caused by overheating or even overburning of the nozzle, on stable and continuous production of a gasification furnace are avoided.
Description
Technical field
The present invention relates to energy extraction field, particularly about the nozzle used in a kind of coal underground gasification technology.
Background technology
Coal underground gasification technology integrates shaft building, coal mining and ground gasification three large techniques, and the coal being in underground is directly carried out the burning having control by it, thus obtains fuel gas.Tradition is mined and is changed chemistry into and mine by coal underground gasification technology, advantages such as eliminating activities and the equipment such as huge coal mining, transport, washing, gasification, have that safety is good, small investment, high efficiency, pollution are few.
Underground coal gasification(UCG) is carried out in underground gasification furnace.And in the practical application of coal underground gasification technology, as the nozzle of the gasifying agent injection devices such as underground gasification furnace oxygen, air, there is the scope of application and important effect widely.Such as, in the oxygen-rich gasification technique in Underground Coal Gasification Process, the gasifying agents such as nozzle transmission & distribution oxygen just need be used to target coal seam gasification face place, to strengthen underground gasification response intensity, improve coal combustion effect and improve gas quality.
But, because the position of nozzle is close to coal combustion district, easily by temperatures involved.Though have temperature measuring equipment but lack the available protecting to nozzle, very easily cause nozzle to be burnt, thus bring impact to the stable of underground gasification furnace and continuous seepage.
Summary of the invention
The object of the invention is to provide a kind of nozzle, and combustion high temperature can be avoided to cause nozzle to damage.
For reaching above-mentioned advantage, the invention provides a kind of nozzle, it comprises nozzle body, water leg and the water inlet pipe be connected with described water leg respectively and outlet pipe is provided with in described nozzle body, cooling water enters described water leg to cool described nozzle body through described water inlet pipe, and the cooling water in described water leg flows into described outlet pipe.
In one embodiment of the invention, described water leg comprises and the dividing plate roughly in the form of a ring at described nozzle body interval, the gap between described dividing plate and described nozzle body for holding cooling water, to cool to described nozzle body.
In one embodiment of the invention, described outlet pipe arranges some weep holes.
In one embodiment of the invention, the rear end of described outlet pipe is connected with described water leg, and the front end of described outlet pipe is closed, and described weep hole is arranged at the along the line and/or leading section of the length of described outlet pipe.
In one embodiment of the invention, the rear end of described outlet pipe is connected with described water leg, and cooling water is caused nozzle by water pipe and discharges outward by the front end of described outlet pipe, and the length that described weep hole is arranged at described outlet pipe is along the line.
In one embodiment of the invention, the rear end of described outlet pipe is connected with described water leg, and cooling water is caused nozzle by water pipe and discharges outward by the front end of described outlet pipe.
In one embodiment of the invention, the rear end of described water inlet pipe stretches to described water leg inside, and the rear end of described outlet pipe stretches to described water leg inside.
In one embodiment of the invention, described water inlet pipe and outlet pipe are directly welded or are welded on described nozzle body inwall by support member.
In one embodiment of the invention, the outside of described nozzle body is provided with some temperature measuring equipments of monitoring underground burned out area temperature.
In one embodiment of the invention, described nozzle comprises an outlet, and the inner side of described outlet is provided with liner.
In one embodiment of the invention, the periphery wall of described nozzle body scribbles coating.
In nozzle of the present invention, water source and water pump carry cooling water endlessly in water inlet pipe, and cooling water flows to outlet pipe via after water leg.Cooling water in water leg is lowered the temperature to nozzle body, avoid nozzle overheated even by burning to the impact that the stable of gasification furnace and continuous seepage bring.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of manual, and can become apparent to allow above and other objects of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 a is depicted as the axial cross-sectional views of the first preferred embodiment of nozzle of the present invention.
Fig. 1 b is depicted as the axial cross-sectional views of the second preferred embodiment of nozzle of the present invention.
Figure 2 shows that the right side schematic view of nozzle in Fig. 1 b.
Figure 3 shows that the cross-sectional schematic along A-A direction in Fig. 1 b.
Figure 4 shows that the cross-sectional schematic along B-B direction in Fig. 1 b.
Figure 5 shows that the axial cross-sectional views of the 3rd preferred embodiment of nozzle of the present invention.
Figure 6 shows that the axial cross-sectional views of the 4th preferred embodiment of nozzle of the present invention.
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, proposing detailed description of the invention, structure, feature and effect thereof to according to the present invention, being described in detail as follows.
First embodiment
Refer to Fig. 1 a, the first embodiment of nozzle of the present invention comprises nozzle body 1, water inlet pipe 3, water leg 4 and outlet pipe 5c.Water leg 4 is arranged at the inner side, rear end (towards coal combustion district) of nozzle body 1, water inlet pipe 3 and outlet pipe 5c are positioned at inside nozzle body 1 and are also connected with water leg 4 respectively, nozzle in use, cooling water enters water leg 4 to cool nozzle body 1 through water inlet pipe 3, and the cooling water in water leg 4 flows into outlet pipe 5c.
Second embodiment
Refer to Fig. 1 b, the second embodiment of nozzle of the present invention comprises nozzle body 1, nozzle chamber 2, water inlet pipe 3, water leg 4, outlet pipe 5 and temperature measuring equipment 6.Nozzle body 1 roughly in a tubular form and surround nozzle chamber 2.Nozzle chamber 2 is the transfer passage of gasifying agent.Water leg 4 is arranged at the inner side, rear end (towards coal combustion district) of nozzle body 1, water inlet pipe 3 and outlet pipe 5 are positioned at the relative both sides of nozzle body 1 inwall and are connected with water leg 4 respectively, in use, cooling water enters water leg 4 to cool nozzle body 1 through water inlet pipe 3 to nozzle.
The length of nozzle body 1 and outside dimension are determined according to underground gasification furnace drilling well internal diameter and process requirements, and in the present embodiment, nozzle body 1 length is not less than 1000mm, and external diameter is not less than 50mm.The wall thickness of nozzle body 1 is generally 3-5mm, and it can tolerate air pressure and generally be not less than 2.0MPa.The round table-like necking end 11 of formation one is shunk to the central axis of nozzle body 1 in the rear end (towards coal combustion district) of nozzle body 1, and the end of necking end 11 extends to form a circular termination 12 to central axis.The central authorities of termination 12 form the outlet 21 of nozzle chamber 2, flow velocity when so can reduce the exit inside diameter of nozzle chamber 2 and then improve gasifying agent conveying.In the present embodiment, the internal diameter of outlet 21 is generally not more than 25mm.
Nozzle chamber 2 provides gasifying agent as gas distribution channel to gasification face, to strengthen underground gasification response intensity, improves coal combustion effect and improves gas quality.According to technique needs, gasifying agent can be chosen as oxygen.In the present embodiment, nozzle chamber 2 is not less than 1500Nm by gasifying agent flow
3/ h and gas pressure can be tolerated be not less than 2.0MPa, and for ensureing that the flow velocity of gasifying agent is within the scope of standard-required, the internal diameter of nozzle chamber 2 is generally not less than 35mm.
See also Fig. 2 to Fig. 4, wherein Figure 2 shows that the right side schematic view of nozzle in Fig. 1 b; Figure 3 shows that the cross-sectional schematic along A-A direction in Fig. 1 b; Figure 4 shows that the cross-sectional schematic along B-B direction in Fig. 1 b.Water inlet pipe 3 roughly in a tubular form, is fixed on the inwall of nozzle body 1.The mode of directly welding or adopt support member to be welded between water inlet pipe 3 and nozzle body 1 can be adopted to be fixed between water inlet pipe 3 with nozzle body 1 inwall, to ensure that water inlet pipe 3 is not moved in the process of conveying cooling water.With water leg 4, the rear end of water inlet pipe 3 is connected that cooling water is inputted water leg 4.The front end of water inlet pipe 3 connects ground cooling water source and and water pump by water pipe.In the present embodiment, water inlet pipe 3 can tolerate hydraulic pressure and generally be not less than 2.0MPa, and wall thickness is generally 2-3mm, and internal diameter is generally not less than 10mm.Cooling water adopts centrifugal pump to be delivered to water inlet pipe 3, and pump head is generally not less than 500 meters, and pump capacity is generally not less than 5m
3/ h.Structure shown in Fig. 1 b is a kind of embodiment that water inlet pipe 3 is connected with water leg 4, and in other embodiments, the rear end of water inlet pipe 3 can stretch to water leg 4 inside, to reach the effect that cooling water better circulates.
Water leg 4 is arranged at rear end (near the necking end 11) inner side of nozzle body 1, and it comprises the junction plate 42 with the dividing plate 41 roughly in the form of a ring of nozzle body 1 parallel interval and the front end (away from necking end 11) of connecting partition 41 and the inwall of nozzle body 1.Gap between dividing plate 41 and nozzle body 1 for holding cooling water, to cool to nozzle body 1.Water inlet pipe 3 and outlet pipe 5 respectively through junction plate 42 are communicated in the inner side of water leg 4.The length of water leg 4 is generally not less than 500mm, and the gap size between water leg 4 and nozzle body 1 is generally not less than 10mm.The cooling water inflow of water leg 4 is determined according to the nozzle temperature demand of cooling, and is generally not less than 2m
3/ h.The dividing plate 41 of water leg 4 and the wall thickness of junction plate 42 design according to water delivery pressure, and design pressure is generally not less than 2.0MPa, and wall thickness is generally 2-3mm.In nozzle use procedure, according to the situation of change of the temperature of nozzle body 1, the cooling water inflow in water leg 4 and cooling water circulation speed should be regulated in time, makes the temperature of nozzle body 1 remain on less than 300 DEG C.
Outlet pipe 5 is fixed on the inwall of nozzle body 1 and is oppositely arranged with water inlet pipe 3.The mode of directly welding or adopt support member to be welded between outlet pipe 5 and nozzle body 1 can be adopted to be fixed between outlet pipe 5 with nozzle body 1 inwall, to ensure that outlet pipe 5 is not in use moved.The rear end (near necking end 11) of outlet pipe 5 is connected with water leg 4.Outlet pipe 5 is water leg 4 internal cooling water output channel, and internal diameter is generally not less than 5mm.Wall thickness designs according to water delivery pressure, and design pressure is generally not less than 2.0MPa, and wall thickness is generally 2-3mm.The length of outlet pipe 5 is generally 500 ~ 1000mm.Structure shown in Fig. 1 b is a kind of embodiment that outlet pipe 5 is connected with water leg 4, and in other embodiments, the rear end of outlet pipe 5 can stretch to water leg 4 inside, to reach the effect that cooling water better circulates.In the present embodiment, roughly in a tubular form, in other embodiments, outlet pipe 5 can also be fan-shaped other shape such as grade to outlet pipe 5.
Outlet pipe 5 is arranged some weep holes 51, to realize outflow or the injection of cooling water.The quantity of weep hole 51 can require to determine according to water yield with to the atomization of water outlet, and the quantity of weep hole 51 is generally no less than 4.When water outlet needs atomization, the diameter of weep hole 51 is generally 2 ~ 5mm, and according to technique needs, can install out water atomizing nozzle, to realize the atomized spray of cooling water at weep hole 51 place.When water outlet does not need atomization, the diameter of weep hole 51, without particular/special requirement, meets water outlet demand.Sprayed by nozzle after gasifying agent in the cooling water sprayed by weep hole 51 and nozzle chamber 2 realizes internal mix, reach gasification reaction work plane, play the effect improving coal combustion situation and gas quality.In the present embodiment, the front end of outlet pipe 5 is closed, and weep hole 51 is arranged at along the line and front end (away from the necking end 11) portion of the length of outlet pipe 5.In other embodiments, the length that weep hole 5 only can be arranged on outlet pipe 5 goes up along the line or is only arranged on the leading section of outlet pipe 5.
Temperature measuring equipment 6 is arranged at the outside of nozzle body 1, concrete, and temperature measuring equipment 6 is arranged at outer wall and termination 12 place of nozzle body 1, for monitoring underground burned out area temperature and nozzle tempering situation.Temperature measuring equipment 6 is thermocouple temperature measurement head, the quantity of temperature measuring equipment 6 is generally no less than 3, the location arrangements of temperature measuring equipment 6 is as the criterion with process requirements, 3 temperature measuring equipments 6 usually can be set, wherein 1, termination 12 place of nozzle, the outer wall of nozzle body 1 and 1,0.5m place, interval, termination 12, the outer wall of nozzle body 1 and 1,1.5m place, interval, termination 12, three temperature measuring equipments 6 are laid point-blank, this kind of arrangement can meet technique needs, can realize the effective monitoring to underground burned out area temperature and nozzle tempering situation.In other embodiments, 7 temperature measuring equipments 6 are set, wherein 1, termination 12 place of nozzle, the outer wall of nozzle body 1 and 3,0.5m place, interval, termination 12, the outer wall of nozzle body 1 and 3,1.5m place, interval, termination 12.And 3 arrangements at termination 12 interval 0.5m and 1.5m place are the right side of the top of nozzle body 1, the left side of nozzle body 1 and nozzle body 1, and are circumferentially uniformly distributed.The advantage of this kind of arrangement effectively can be monitored underground burned out area temperature and nozzle tempering situation, and can infer nozzle place thermo parameters method situation according to temperature monitoring result.
In the present embodiment, armoured thermocouple selected by thermocouple, and can select single multiple spot or single single-point, thermocouple observable temperature scope is generally not less than 1300 DEG C.Compensation lead of thermocouple (not shown) is connected to ground by water leg 4, nozzle chamber 2 and nozzle connecting pipe (not shown), and by being connected with ground level heat galvanic couple switch board, realizes the real-time display of measured temperature.
Please continue to refer to Fig. 1 b, be provided with the liner 8 that forward end (away from coal combustion district) extends inside the outlet 21 of nozzle chamber 2, in order to improve the anti-wear performance of nozzle, liner 8 is ceramic material, as carborundum etc.Particularly, liner 8 is arranged at also contiguous outlet 21 place, the side towards nozzle chamber 2 of dividing plate 41.
In the present embodiment, the periphery wall of nozzle body 1 scribbles coating 9, and coating 9 is high-temp. antioxidation coatings layer, and to improve the high temperature resistant, wear-resisting of nozzle and decay resistance, the thickness of high-temp. antioxidation coatings layer is not less than 2mm.Particularly, high-temp. antioxidation coatings layer is the inorganic silicon high-temperature resistant coating layer that enough tolerable temperatures are not less than 1500 DEG C, and the phenomenon such as in use, coating does not come off, bubble, ftracture, efflorescence.In other embodiments, coating 9 is the alloy coat adopting plasma spraying technology to spray alloy material formation on the external surface of nozzle body 1, as nickel-base alloy.
3rd embodiment
Refer to Fig. 5,3rd embodiment of nozzle of the present invention and the difference of the second embodiment are, this nozzle comprises an outlet pipe 5a, the rear end (near necking end 11) of outlet pipe 5a is connected with water leg 4, cooling water is caused nozzle by water pipe and discharges outward by the front end (away from necking end 11) of outlet pipe 5a, such as causes ground release or causes discharge in the passage outside nozzle.Outlet pipe 5a offers some weep hole 51a along the line along length, sprayed by nozzle after gasifying agent in the cooling water sprayed by weep hole 51a and nozzle chamber 2 realizes internal mix, reach gasification reaction work plane, play the effect improving coal combustion situation and gas quality.Further, the front end of outlet pipe 5a can arrange pressure regulator valve (not shown), by adjustment pressure regulator valve and then the water yield adjusting water hole 51a.
4th embodiment
Refer to Fig. 6,4th embodiment of nozzle of the present invention comprises an outlet pipe 5b, the rear end (near necking end 11) of outlet pipe 5b is connected with water leg 4, cooling water is caused nozzle by water pipe and discharges outward by the front end (away from necking end 11) of outlet pipe 5b, such as causes ground release or causes discharge in the passage outside nozzle.The nozzle of the 4th embodiment and the difference of the second embodiment are, the outlet pipe 5b of this nozzle does not set out water hole, and the cooling water flowed out by water leg 4 directly causes nozzle and discharges outward.
Nozzle of the present invention stretches to underground gasification furnace in use, and wherein, the necking end 11 of nozzle body 1 is positioned at the gasification reaction work plane place of underground gasification furnace.Nozzle chamber 2 connects air inlet pipe (not shown) to input gasifying agent to gasification reaction work plane.Water inlet pipe 3 is connected to ground supply water source and water pump, is inputed to by cooling water in water leg 4, is reached to the object of nozzle body 1 cooling down by the cooling effect of water.In a first embodiment, the cooling water that water leg 4 flows out sprays in nozzle chamber 2 by outlet pipe 5, sprays, play the effect improving coal combustion situation and gas quality with after gasifying agent realizes mixing in nozzle chamber 2 in outlet 21.In a second embodiment, the cooling water that water leg 4 flows out is expelled to the discharge realizing cooling water outside ground or nozzle by outlet pipe 5a, also part cooling water can be sprayed in nozzle chamber 2, spray in outlet 21 with after gasifying agent realizes mixing in nozzle chamber 2, play the effect improving coal combustion situation and gas quality.In the third embodiment, the cooling water that water leg 4 flows out directly is expelled to outside ground or nozzle by outlet pipe 5b, realizes the discharge of cooling water.
The temperature of combustion zone is recorded by the thermocouple temperature measuring apparatus 6 of nozzle body 1 arranged outside, and is delivered to the thermocouple switch board on ground by compensating wire, thus obtains the ignition temperature of underground gasification furnace combustion zone.By the analysis of ignition temperature, the fired state of underground gasification furnace can be obtained, thus the technological parameter of controlling and adjustment underground gasification furnace, ensure that the safety of underground gasification technology, also improve gas quality simultaneously.
In sum, nozzle of the present invention at least has following advantage:
1., in nozzle of the present invention, water source and water pump carry cooling water endlessly in water inlet pipe 3, and cooling water flows to outlet pipe 5 via after water leg 4.Cooling water in water leg 4 is lowered the temperature to nozzle body 1, avoid nozzle overheated even by burning to the impact that the stable of gasification furnace and continuous seepage bring.
2. in the first and second embodiments of nozzle of the present invention, outlet pipe 5 is provided with the weep hole towards nozzle chamber 2, can all or part of cooling water flowed out in water leg 4 be sprayed in nozzle chamber 2, spray in outlet 21 with after gasifying agent realizes mixing in nozzle chamber 2, play the effect improving coal combustion situation and gas quality.
3. in nozzle of the present invention, nozzle body 1 arranged outside has thermocouple temperature measuring apparatus 6, and devise the different arrangement mode of temperature measuring equipment 6, effectively can monitor underground burned out area temperature and nozzle tempering situation, and nozzle place thermo parameters method situation can be inferred according to temperature monitoring result, by the analysis of ignition temperature, the fired state of underground gasification furnace can be obtained, thus the technological parameter of controlling and adjustment underground gasification furnace, ensure that the safety of underground gasification technology, also improve gas quality simultaneously.
4., in nozzle of the present invention, the inner side of outlet 21 is provided with the liner 8 that ceramic material etc. makes, in order to improve the anti-wear performance of nozzle.
5. in nozzle of the present invention, the periphery wall of nozzle body 1 scribbles coating 9, and coating 9 is that high-temp. antioxidation coatings layer is to improve the high temperature resistant, wear-resisting of nozzle and decay resistance.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a nozzle, it comprises nozzle body (1), it is characterized in that, water leg (4) and the water inlet pipe (3) be connected with described water leg (4) respectively and outlet pipe (5c) is provided with in described nozzle body (1), cooling water enters described water leg (4) to cool described nozzle body (1) through described water inlet pipe (3), and the cooling water in described water leg (4) flows into described outlet pipe (5c).
2. nozzle as claimed in claim 1, is characterized in that: described outlet pipe (5) is arranged some weep holes (51).
3. nozzle as claimed in claim 2, it is characterized in that: the rear end of described outlet pipe (5) is connected with described water leg (4), the front end of described outlet pipe (5) is closed, and described weep hole (51) is arranged at the along the line and/or leading section of the length of described outlet pipe (5).
4. nozzle as claimed in claim 2, it is characterized in that: the rear end of described outlet pipe (5a) is connected with described water leg (4), cooling water is caused nozzle by water pipe and discharges outward by the front end of described outlet pipe (5a), and the length that described weep hole (51a) is arranged at described outlet pipe (5a) is along the line.
5. nozzle as claimed in claim 1, is characterized in that: the rear end of described outlet pipe (5b) is connected with described water leg (4), and cooling water is caused nozzle by water pipe and discharges outward by the front end of described outlet pipe (5b).
6. nozzle as claimed in claim 1, is characterized in that: the rear end of described water inlet pipe (3) stretches to described water leg (4) inside, and the rear end of described outlet pipe (5) stretches to described water leg (4) inside.
7. nozzle as claimed in claim 1, is characterized in that: described water inlet pipe (3) and outlet pipe (5) are directly welded or be welded on described nozzle body (1) inwall by support member.
8. nozzle as claimed in claim 1, is characterized in that: the outside of described nozzle body (1) is provided with some temperature measuring equipments (6) of monitoring underground burned out area temperature.
9. nozzle as claimed in claim 1, it is characterized in that: described nozzle comprises an outlet (21), the inner side of described outlet (21) is provided with liner (8).
10. nozzle as claimed in claim 1, is characterized in that: the periphery wall of described nozzle body (1) scribbles coating (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044198.8A CN104612652B (en) | 2015-01-28 | 2015-01-28 | Nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044198.8A CN104612652B (en) | 2015-01-28 | 2015-01-28 | Nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612652A true CN104612652A (en) | 2015-05-13 |
| CN104612652B CN104612652B (en) | 2019-04-23 |
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| CN201510044198.8A Active CN104612652B (en) | 2015-01-28 | 2015-01-28 | Nozzle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018129796A1 (en) * | 2017-01-12 | 2018-07-19 | 中为(上海)能源技术有限公司 | Nozzle and injection device for use in underground coal gasification process and method for operating injection device |
| CN110318726A (en) * | 2019-08-23 | 2019-10-11 | 新疆国利衡清洁能源科技有限公司 | nozzle and continuous pipe device for underground coal gasification |
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| CN103670361A (en) * | 2013-12-02 | 2014-03-26 | 新奥气化采煤有限公司 | Gas injection device, coal underground gasification system and coal underground gasification method |
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| US4479540A (en) * | 1981-06-05 | 1984-10-30 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Gasification of coal |
| CN101440309A (en) * | 2007-11-23 | 2009-05-27 | 山东科技大学 | Direct freezing type coal water slurry gasification nozzle with divergent section |
| CN101486930A (en) * | 2009-02-19 | 2009-07-22 | 山东科技大学 | Preheating coal water slurry gasification nozzle with expansion segment |
| CN101760247A (en) * | 2010-01-19 | 2010-06-30 | 田原宇 | Direct-spraying coal water slurry gasifying nozzle with direct cooling |
| CN101768472A (en) * | 2010-01-19 | 2010-07-07 | 田原宇 | Direct-injection type coal-water-slurry gasification nozzle |
| CN103670361A (en) * | 2013-12-02 | 2014-03-26 | 新奥气化采煤有限公司 | Gas injection device, coal underground gasification system and coal underground gasification method |
| CN204082121U (en) * | 2014-09-17 | 2015-01-07 | 新奥气化采煤有限公司 | A kind of Coal Gasification nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018129796A1 (en) * | 2017-01-12 | 2018-07-19 | 中为(上海)能源技术有限公司 | Nozzle and injection device for use in underground coal gasification process and method for operating injection device |
| US11066916B2 (en) | 2017-01-12 | 2021-07-20 | Zhongwei (Shanghai) Energy Technology Co. Ltd | Nozzle and injection device for use in underground coal gasification process and method for operating injection device |
| CN110318726A (en) * | 2019-08-23 | 2019-10-11 | 新疆国利衡清洁能源科技有限公司 | nozzle and continuous pipe device for underground coal gasification |
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| CN104612652B (en) | 2019-04-23 |
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