CN104632181B - Nozzle - Google Patents
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- CN104632181B CN104632181B CN201510055948.1A CN201510055948A CN104632181B CN 104632181 B CN104632181 B CN 104632181B CN 201510055948 A CN201510055948 A CN 201510055948A CN 104632181 B CN104632181 B CN 104632181B
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- nozzle body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 149
- 239000000498 cooling water Substances 0.000 claims abstract description 59
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 25
- 238000012384 transportation and delivery Methods 0.000 claims description 33
- 239000004744 fabric Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 48
- 238000002309 gasification Methods 0.000 abstract description 48
- 238000002485 combustion reaction Methods 0.000 abstract description 34
- 239000003795 chemical substances by application Substances 0.000 abstract description 31
- 238000006243 chemical reaction Methods 0.000 abstract description 19
- 239000000203 mixture Substances 0.000 abstract description 16
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 238000000889 atomisation Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 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
- 238000012546 transfer Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 238000009692 water atomization Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 208000034423 Delivery Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding 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)
Abstract
A kind of nozzle, it includes nozzle body, water leg and the water-supply-pipe being connected with the water leg are provided with the nozzle body, cooling water enters the water leg to be cooled down to the nozzle body by the water-supply-pipe, and the rear end of the water-supply-pipe offers some hole for water sprayings.Water source and water pump endlessly convey cooling water into water-supply-pipe, discharged after cooling current direction water leg, cooling water in water leg cools to nozzle body, avoid nozzle overheat or even be burned out and influence that stabilization and continuous production to gasification furnace are brought, gasifying agent in cooling water and nozzle chamber that the hole for water spraying of water-supply-pipe sprays is sprayed after realizing internal mix by outlet, reach gasification reaction working face, play a part of improving coal combustion situation and gas quality.
Description
Technical field
The present invention relates to energy extraction field, especially with regard to the nozzle used in a kind of coal underground gasification technology.
Background technology
Coal underground gasification technology integrates three big techniques of shaft building, coal mining and ground gasification, and it will directly be in underground
Coal carry out controlled burning, so as to obtain fuel gas.Tradition coal mining is changed into chemistry and adopted by coal underground gasification technology
Coal, the technical process such as huge coal mining, transport, washing, gasification and equipment are eliminated, there is good security, small investment, effect
The advantages that beneficial high, pollution is 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 device such as underground gasification furnace oxygen, air, there is extensive use range and important.Than
Such as, in the oxygen-rich gasification technique in Underground Coal Gasification Process, the gasifying agents such as nozzle transmission ＆ distribution oxygen need to just be used to target coal seam
At gasification face, to strengthen underground gasification response intensity, improve coal combustion effect and improve gas quality.
However, because the position of nozzle is nearer from coal combustion area, easily influenceed by high temperature.Though have temperature measuring equipment but
Lack effective protection to nozzle, easily cause nozzle to be burned out, so as to which the stabilization and continuous production to underground gasification furnace are brought
Influence.Also, can be there is a certain degree of water shortage phenomenon in the coal combustion process of underground gasification furnace, and injected from drilling well-head
Water can not effectively reach the gasification reaction working face of burning coal layer, cause gas quality can be by a definite limitation.
The content of the invention
Present invention aims at a kind of nozzle is provided, combustion high temperature can be avoided to cause nozzle to damage.
In order to achieve the above-mentioned advantages, the present invention provides a kind of nozzle, it includes nozzle body, water is provided with the nozzle body
Chuck and the water-supply-pipe being connected with the water leg, cooling water enter the water leg with to described by the water-supply-pipe
Nozzle body is cooled down, and the rear end of the water-supply-pipe offers some hole for water sprayings.
In one embodiment of the invention, the water leg offers some apopores.
In one embodiment of the invention, the apopore of the water leg includes the outer wall for being opened in the nozzle body
Apopore, the termination apopore for being opened in water leg side termination and it is opened in the inwall apopore of water leg inwall
Any or any combination.
In one embodiment of the invention, some water delivery branch are set between the rear end of the water-supply-pipe and the water leg
Pipe, cooling water input the water leg by the water-supply-pipe and the delivery pipe branch.
In one embodiment of the invention, the delivery pipe branch is centered on the water-supply-pipe, circumferentially in emitting shape
Distribution.
In one embodiment of the invention, the rear end of the water-supply-pipe stretches to be formed through follow-up renew of the delivery pipe branch
One extension, the extension offer some hole for water sprayings.
In one embodiment of the invention, the hole for water spraying is opened in along the length of the extension and/or rear end
Portion.
In one embodiment of the invention, be arranged at intervals between the rear end of the water-supply-pipe and the water leg two groups it is defeated
Water branch pipe, part of the water-supply-pipe between two groups of delivery pipe branches offer some hole for water sprayings.
In one embodiment of the invention, if setting dry support arm between the water-supply-pipe and the nozzle body inwall
It is fixedly connected between the water-supply-pipe and the nozzle body.
In one embodiment of the invention, the outer wall of the nozzle body is provided with some to underground burned out area with end
The temperature measuring equipment that temperature is monitored, wherein the nozzle body end set one, the outer wall of the nozzle body with
Three are set at the termination interval 0.5m, three are set at the outer wall of the nozzle body and the termination interval 1.5m,
It is the top of the nozzle body with 3 arrangements at termination the interval 0.5m and 1.5m, a left side for the nozzle body
Side and the right side of the nozzle body.
In the nozzle of the present invention, water source and water pump endlessly convey cooling water into water-supply-pipe, cool down current direction
Discharged after water leg, the cooling water in water leg cools to nozzle body, avoid nozzle overheat in addition be burned out and to
The influence that the stabilization and continuous production of gasification furnace are brought.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 show the axial cross-sectional views of the first preferred embodiment of nozzle of the present invention.
Fig. 2 show the axial cross-sectional views of the second preferred embodiment of nozzle of the present invention.
Fig. 3 show the right side schematic view of nozzle in Fig. 2.
Fig. 4 is shown in Fig. 1 along the schematic cross-sectional view in A-A directions.
Fig. 5 is shown in Fig. 1 along the schematic cross-sectional view in B-B directions.
Fig. 6 is shown in Fig. 1 along the schematic cross-sectional view in C-C directions.
Fig. 7 show the axial cross-sectional views of the 3rd preferred embodiment of nozzle of the present invention.
Fig. 8 show the axial cross-sectional views of the 4th preferred embodiment of nozzle of the present invention.
Fig. 9 show the axial cross-sectional views of the 5th preferred embodiment of nozzle of the present invention.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to proposing embodiment, structure, feature and its effect according to the present invention, describe in detail as after.
First embodiment
Referring to Fig. 1, the first embodiment of nozzle of the present invention includes nozzle body 1, water leg is provided with nozzle body 1
3 and the water-supply-pipe 4 that is connected with water leg 3, it is cold to be carried out to nozzle body 1 that cooling water by water-supply-pipe 4 enters water leg 3
But, the rear end of water-supply-pipe 4 offers some hole for water sprayings 431.
Second embodiment
Referring to Fig. 2, the second embodiment of nozzle of the present invention includes nozzle body 1, nozzle chamber 2, water leg 3 and defeated
Water pipe 4.Nozzle body 1 is substantially tubular and surrounds nozzle chamber 2.Nozzle chamber 2 is the transfer passage of gasifying agent.Water leg 3
Rear end (towards coal combustion area) madial wall of nozzle body 1 is arranged at, the inner side that water-supply-pipe 4 is arranged at nozzle body 1 is remote
The one end in coal combustion area, and be connected with water leg 3.In use, cooling water enters water by water-supply-pipe 4 and pressed from both sides nozzle
3 are covered to be cooled down to nozzle body 1.
The length and outside dimension of nozzle body 1 are according to underground gasification furnace drilling well internal diameter and process requirements determination, this implementation
In example, the length of nozzle body 1 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
Tolerance air pressure is typically not less than 2.0MPa.Received to the central shaft of nozzle body 1 rear end (towards coal combustion area) of nozzle body 1
Contracting forms a round table-like necking end 11, and the end of necking end 11 extends to form a circular termination 12 to central shaft.End
First 12 center forms the outlet 21 of nozzle chamber 2, can so reduce the exit inside diameter of nozzle chamber 2 and then improve gasifying agent
Flow velocity during conveying.In the present embodiment, the internal diameter for exporting 21 is generally no greater than 25mm.
Nozzle chamber 2 provides gasifying agent as gas distribution channel to gasification face, to strengthen underground gasification response intensity, carries
High coal combustion effect and improvement gas quality.According to technique needs, gasifying agent can be selected as oxygen.In the present embodiment,
Nozzle chamber 2 is not less than 1500Nm by the agent flux that gasifies3/ h and tolerable gas pressure are not less than 2.0MPa, and to ensure gas
The flow velocity of agent is in standard claimed range, and the internal diameter of nozzle chamber 2 is typically no less than 35mm.
The right side schematic view of nozzle in Fig. 1 is shown also referring to Fig. 3 to Fig. 6, wherein Fig. 3；Fig. 4 is shown in Fig. 1
Along the schematic cross-sectional view in A-A directions；Fig. 5 is shown in Fig. 1 along the schematic cross-sectional view in B-B directions；Fig. 6 is shown in Fig. 1 along C-C
The schematic cross-sectional view in direction.
Water leg 3 is arranged at rear end (close to necking end 11) madial wall of nozzle body 1, and it includes flat with nozzle body 1
The inwall 31 substantially annular in shape of between-line spacing and front end (away from necking end 11) and the inwall of nozzle body 1 for connecting inwall 31
Sealing plate 32.Gap between inwall 31 and nozzle body 1 is used to accommodate cooling water, to be cooled down to nozzle body 1,
Specifically, nozzle body 1, termination 12, inwall 31 and sealing plate 32 surround the space of sealing as water leg 3 jointly.Water leg 3
Length be typically no less than 500mm, the gap size between water leg 3 and nozzle body 1 is typically no less than 10mm.Water leg 3
Cooling water inflow according to nozzle temperature cool demand determine, typically not less than 2m3/h.The inwall 31 of water leg 3 and sealing
The wall thickness of plate 32 is designed according to water delivery pressure, and design pressure is typically not less than 2.0MPa, and wall thickness is generally 2-3mm.Spraying
During mouth use, cooling water inflow in water leg 3 and cold should be adjusted in time according to the situation of change of the temperature of nozzle body 1
But water circulating speed, the temperature of nozzle body 1 is made to be maintained at less than 300 DEG C.
In the present embodiment, the angle between sealing plate 32 and nozzle body 1 is substantially in 15 degree；In other embodiments,
Angle between sealing plate 32 and nozzle body 1 substantially (refers to the sealing plate of third embodiment of the invention in Fig. 7 in 90 degree
32a)；It will be apparent that the angle between sealing plate 32 and nozzle body 1 can be less than or equal between 90 degree more than 0 degree
Set, angle is smaller within this range, is more advantageous to the resistance for reducing sealing plate abrasion and gasifying agent passes through, preferably 15-
90 degree.
Water leg 3 offers some apopores, these apopores be respectively facing nozzle chamber 2, nozzle body 1 outside with
And the outside of termination 12, specifically, nozzle body 1 offers some outer wall apopores 13；Termination 12 offers some terminations and gone out
Water hole 121；Inwall 31 offers some inwall apopores 311.
Outer wall apopore 13 is used for cooling water flow out of in water leg 3 or sprayed to the outside of nozzle body 1, can give
Nozzle and the cooling of neighbouring high temperature coal seam, play a protective role to nozzle.The quantity of outer wall apopore 13 can according to water yield and
Atomization to water outlet requires determination, and the quantity of outer wall apopore 13 is typically no less than 4.When water outlet needs atomization, outer wall goes out
The diameter in water hole 13 is generally 2~5mm, and according to technique needs, can install out water atomizing nozzle at outer wall apopore 13,
To realize the atomized spray of cooling water.When water outlet need not be atomized, the diameter of outer wall apopore 13 meets without particular/special requirement
Water demand.
Also referring to Fig. 2, termination apopore 121 is used for cooling water flow out of in water leg 3 or sprayed to termination 12
Outside and with nozzle chamber 2 spray gasifying agent realize external mix after reach gasification reaction working face, play improve coal seam
The effect of combustion position and gas quality, spraying the cooling water of outside can also cool to nozzle termination 12, and guarantor is played to nozzle
Shield acts on.The quantity of termination apopore 121 can require determination, termination apopore 121 according to water yield and to the atomization of water outlet
Quantity typically be no less than 4.When water outlet needs atomization, the diameter of termination apopore 121 is generally 2~5mm, and according to work
Skill needs, and water atomizing nozzle can be installed out at termination apopore 121, to realize the atomized spray of cooling water.When water outlet not
When needing atomization, the diameter of termination apopore 121 meets water outlet demand without particular/special requirement.
Gasifying agent in cooling water and nozzle chamber 2 that inwall apopore 311 sprays is realized after internal mix by outlet 21
Spray, reach gasification reaction working face, play a part of improving coal combustion situation and gas quality.Inwall apopore 311
Quantity can require determination according to water yield and to the atomization of water outlet, and the quantity of inwall apopore 311 is typically no less than 4.When
When water outlet needs atomization, the diameter of inwall apopore 311 is generally 2~5mm, and according to technique needs, can be in inwall water outlet
Water atomizing nozzle is installed out at hole 311, to realize the atomized spray of cooling water.When water outlet need not be atomized, inwall apopore
311 diameter meets water outlet demand without particular/special requirement.
In the present embodiment, water leg 3 offers outer wall apopore 13, termination apopore 121 and inwall apopore simultaneously
311.In other embodiments, water leg 3 can be opened up in outer wall apopore 13, termination apopore 121 and inwall apopore 311
One or any two kinds of combination, the present invention will open up scheme to two kinds of apopores therein with reference to Fig. 7 and Fig. 8 hereinafter and enter
Row explanation.
Also referring to Fig. 4 to Fig. 6, water-supply-pipe 4 is substantially tubular, be fixed on nozzle body 1 inside and with nozzle master
Body 1 is coaxially disposed.The rear end of water-supply-pipe 4 sets some delivery pipe branches 41, delivery pipe branch (close to termination 12) between water leg 3
41 are connected the water-supply-pipe 4 with water leg 3, and cooling water inputs water leg 3 by water-supply-pipe 4 and delivery pipe branch 41.Water delivery
The front end of pipe 4 connects ground cooling water source and water pump by water pipe.The rear end of water-supply-pipe 4 extends to form an extension 43, specifically
, the rear end of water-supply-pipe 4 stretches to form an extension 43 through follow-up renew of delivery pipe branch 41, and extension 43 offers some water sprays
Hole 431, in the present embodiment, hole for water spraying 431 is arranged at along the length of extension 43 and rearward end.In other embodiments,
Hole for water spraying 431 can be also provided only in along the length of extension 43 or rearward end.The cooling water and nozzle that hole for water spraying 431 sprays
Gasifying agent in inner chamber 2 is sprayed after realizing internal mix by outlet 21, is reached gasification reaction working face, is played improvement coal combustion
The effect of situation and gas quality.
In the present embodiment, water-supply-pipe 4 can tolerate hydraulic pressure and typically be not less than 2.0MPa, and wall thickness is generally 2-3mm, and internal diameter is general
Not less than 10mm.Cooling water is delivered to water-supply-pipe 4 using centrifugal pump, and pump head is typically not less than 500 meters, and pump capacity is general
Not less than 5m3/h。
Delivery pipe branch 41 can take different branch pipe Number Forms, and each delivery pipe branch 41 is centered on water-supply-pipe 4, circumferentially
It is uniformly distributed in emitting shape.In the present embodiment, delivery pipe branch 41 uses two manifold configurations, the angle between two delivery pipe branches 41
For 180 degree (as shown in Fig. 3 and Fig. 4).In other embodiments, delivery pipe branch 41 can also use three manifold configurations, four branch pipes
Structure etc., three manifold configurations such as are used, then the angle between delivery pipe branch 41 is 120 degree.The caliber of delivery pipe branch 41 is general not
More than the half of the caliber of water-supply-pipe 4.Angle between delivery pipe branch 41 and water-supply-pipe 4 can between 90-165 degree,
In the present embodiment, the angle between delivery pipe branch 41 and water-supply-pipe 4 is 90 degree.
If dry support arm 42 is set to be fixedly connected (as by the way of welding) between water-supply-pipe 4 and the inwall of nozzle body 1
Between water-supply-pipe 4 and nozzle body 1, water-supply-pipe 4 is fixed on nozzle body 1, ensures water-supply-pipe 4 in conveying cooling water
During be not moved.In the present embodiment, arrange that three radial angles are 120 degree at each Support Position
Support member 42.The area of section sum of installation support member 42 accounts for the ratio of the internal diameter area of corresponding nozzle inner chamber at same Support Position
Example is less than or equal to 30%.
The outside of nozzle body 1 is provided with temperature measuring equipment 6, specifically, temperature measuring equipment 6 is arranged at the outer wall of nozzle body 1
And at termination 12, for being monitored to 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 are typically no less than 3, and the location arrangements of temperature measuring equipment 6 are defined by process requirements, can usually be set
3 temperature measuring equipments 6 are put, wherein 1 at the termination 12 of nozzle, outer wall and the termination 12 of nozzle body 1 are spaced at 0.5m 1, spray
The outer wall of mouth main body 1 is spaced at 1.5m 1 with termination 12, and three temperature measuring equipments 6 are laid point-blank, such a arrangement
Technique needs can be met, it is possible to achieve effective monitoring of situation is tempered to underground burned out area temperature and nozzle.Other real
Apply in example, 7 temperature measuring equipments 6 are set, wherein 1 at the termination 12 of nozzle, outer wall and the termination 12 of nozzle body 1 are spaced 0.5m
3, place, outer wall and the termination 12 of nozzle body 1 are spaced at 1.5m 3.3 points of arrangements being spaced with termination 12 at 0.5m and 1.5m
Mode is top, the left side of nozzle body 1 and the right side of nozzle body 1 of nozzle body 1, and is circumferentially uniformly distributed.It is such a
The advantages of arrangement is that underground burned out area temperature and nozzle tempering situation effectively can be monitored, and can be supervised according to temperature
Survey result and infer thermo parameters method situation at nozzle.
In the present embodiment, thermocouple selection armoured thermocouple, single multiple spot or single single-point, thermocouple can be selected to survey
Temperature range is typically not less than 1300 DEG C.Compensation lead of thermocouple (not shown) is connected by water leg 3, nozzle chamber 2 and nozzle
Adapter (not shown) is connected to ground, and by being connected with ground thermocouple switch board, realizes the real-time display of measured temperature.
3rd embodiment
Referring to Fig. 7, the 3rd embodiment of nozzle of the present invention includes nozzle body 1, nozzle chamber 2, water leg 3 and defeated
Water pipe 4.Nozzle chamber 2 is the transfer passage of gasifying agent.Water leg 3 is arranged at the rear end of nozzle body 1 (towards coal combustion
Area) madial wall, water-supply-pipe 4 is arranged at the one end of the inner side of nozzle body 1 away from coal combustion area, and is connected with water leg 3.
In use, cooling water enters water leg 3 to be cooled down to nozzle body 1 to nozzle by water-supply-pipe 4.Water-supply-pipe 4
Rear end extends to form an extension 43, and extension 43 offers some hole for water sprayings 431.The cooling water and spray that hole for water spraying 431 sprays
Gasifying agent in mouth inner chamber 2 is sprayed after realizing internal mix by outlet 21, reaches gasification reaction working face, and playing improves coal seam combustion
The effect of burning situation and gas quality.Termination 12 offers some termination apopores 121, for by the cooling water in water leg 3
Outflow or spray to termination 12 outside and with nozzle chamber 2 spray gasifying agent realize external mix after reach gasification reaction work
Make face, play a part of improving coal combustion situation and gas quality, spraying the cooling water of outside can also cool to termination 12,
Nozzle is played a protective role.
Fourth embodiment
Referring to Fig. 8, the fourth embodiment of nozzle of the present invention includes nozzle body 1, nozzle chamber 2, water leg 3 and defeated
Water pipe 4.Nozzle chamber 2 is the transfer passage of gasifying agent.Water leg 3 is arranged at the rear end of nozzle body 1 (towards coal combustion
Area) madial wall, water-supply-pipe 4 is arranged at the one end of the inner side of nozzle body 1 away from coal combustion area, and is connected with water leg 3.
In use, cooling water enters water leg 3 to be cooled down to nozzle body 1 to nozzle by water-supply-pipe 4.Water-supply-pipe 4
Rear end is arranged at intervals two groups of delivery pipe branches 41 (close to termination 12) between water leg 3, and every group of delivery pipe branch 41 is with water-supply-pipe 4
Center, circumferentially it is uniformly distributed in delivery pipe branch 41 in emitting shape and the water-supply-pipe 4 is connected with water leg 3, cooling water leads to
Cross water-supply-pipe 4 and delivery pipe branch 41 inputs water leg 3.The extension 43 of the rear end of water-supply-pipe 4 and water-supply-pipe 4 are located at two groups of water delivery branch
Part between pipe 41 offers some hole for water sprayings 431.The cooling water that hole for water spraying 431 sprays and the gasification in nozzle chamber 2
Agent is sprayed after realizing internal mix by outlet 21, reaches gasification reaction working face, and playing improves coal combustion situation and coal gas product
The effect of matter.Termination 12 offers some termination apopores 121, for by cooling water flow out of in water leg 3 or spray to hold
First 12 outside and the gasifying agent sprayed with nozzle chamber 2 reach gasification reaction working face after realizing external mix, play improvement
The effect of coal combustion situation and gas quality, spraying the cooling water of outside can also cool to termination 12, and guarantor is played to nozzle
Shield acts on.
5th embodiment
Referring to Fig. 9, the fourth embodiment of nozzle of the present invention includes nozzle body 1, water leg 3 and water-supply-pipe 4.Nozzle
Inner chamber 2 is the transfer passage of gasifying agent.Water leg 3 is arranged at rear end (towards coal combustion area) madial wall of nozzle body 1, defeated
Water pipe 4 is arranged at the one end of the inner side of nozzle body 1 away from coal combustion area, and is connected with water leg 3.Nozzle was using
Cheng Zhong, cooling water enter water leg 3 to be cooled down to nozzle body 1 by water-supply-pipe 4.The rear end of water-supply-pipe 4 extends to be formed
One extension 43, extension 43 offer some hole for water sprayings 431.The cooling water that hole for water spraying 431 sprays and the gas in nozzle chamber 2
Agent is sprayed after realizing internal mix by outlet 21, reaches gasification reaction working face, and playing improves coal combustion situation and coal gas
The effect of quality.Nozzle body 1 offers some outer wall apopores 13, and the cooling water of water leg 3 passes through the row of outer wall apopore 13
Go out to the outside of nozzle body 1, nozzle body 1 can be cooled down, nozzle is played a protective role.
Nozzle of the present invention stretches to underground gasification furnace when in use, wherein, 11 gas located underground of necking end of nozzle body 1
At the gasification reaction working face for changing stove.Nozzle chamber 2 connects air inlet pipe (not shown) and gasified with being inputted to gasification reaction working face
Agent.Water-supply-pipe 4 is connected to ground supply water source and water pump, and cooling water is inputted into water leg 3, is reached by the cooling effect of water
To the purpose to the cooling down of nozzle body 1.In cooling water and nozzle chamber 2 that the hole for water spraying 431 of the rear end of water-supply-pipe 4 sprays
Gasifying agent is sprayed after realizing internal mix by outlet 21, reaches gasification reaction working face, and playing improves coal combustion situation and coal
The effect of gas quality.In a second embodiment, the cooling water of water leg 3 is sprayed into nozzle chamber 2, is realized with gasifying agent in nozzle
Sprayed after being mixed in inner chamber 2 in outlet 21, play a part of improving coal combustion situation and gas quality；Meanwhile water leg 3
Cooling water is expelled to the outside of nozzle body 1 and termination 12, and the cooling water being expelled to outside nozzle body 1 can be to nozzle body 1
Cooled down, be expelled to after the gasifying agent that the cooling water outside termination 12 sprays with nozzle chamber 2 realizes external mix and reach gas
Change reaction working face, play a part of improving coal combustion situation and gas quality, the cooling water for spraying outside can also be to end
First 12 cooling, plays a protective role to nozzle.In the third embodiment, the cooling water of water leg 3 is expelled to outside termination 12, row
Go out after the gasifying agent sprayed to the cooling water outside termination 12 and nozzle chamber 2 realizes external mix and reach gasification reaction work
Face, play a part of improving coal combustion situation and gas quality, the cooling water being expelled to outside termination 12 can also be to termination
12 coolings, play a protective role to nozzle.In the fourth embodiment, two groups of water deliverys are arranged at intervals between water-supply-pipe 4 and water leg 3
The part of branch pipe 41, the extension 43 of the rear end of water-supply-pipe 4 and water-supply-pipe 4 between two groups of delivery pipe branches 41 offers some
Hole for water spraying 431, the gasifying agent in cooling water and nozzle chamber 2 that hole for water spraying 431 sprays are realized after internal mix by the spray of outlet 21
Go out, reach gasification reaction working face, play a part of improving coal combustion situation and gas quality.Termination apopore 121 is by water
Cooling water flow out of in chuck 3 or the gasifying agent for spraying to the outside of termination 12 and being sprayed with nozzle chamber 2 realize external mix
After reach gasification reaction working face, play a part of improving coal combustion situation and gas quality, spray the cooling water of outside also
It can cool to termination 12, nozzle is played a protective role.In 5th embodiment, the cooling water of water leg 3 passes through outer wall water outlet
Hole 13 is expelled to the outside of nozzle body 1, and being expelled to the cooling water outside nozzle body 1 can cool down to nozzle body 1, right
Nozzle plays a protective role.
The thermocouple temperature measuring apparatus 6 that the temperature of combustion zone is set by the outside of nozzle body 1 measures, and passes through compensating wire
(not shown) is delivered to the thermocouple switch board (not shown) on ground, so as to obtain 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, so as to control and adjust the work of underground gasification furnace
Skill parameter, ensure that the safety of underground gasification technology, while also improve gas quality.
In summary, nozzle of the invention at least has the following advantages that:
1. in the nozzle of the present invention, water source and water pump endlessly convey cooling water into water-supply-pipe 4, cool down current
Enter in water leg 3 and nozzle body 1 is cooled, avoid nozzle overheat or even be burned out and the stabilization to gasification furnace and continuous
Produce the influence brought.
2. in the nozzle of the present invention, in the cooling water and nozzle chamber 2 of the ejection of hole for water spraying 431 of the rear end of water-supply-pipe 4
Gasifying agent is sprayed after realizing internal mix by outlet 21, reaches gasification reaction working face, and playing improves coal combustion situation and coal
The effect of gas quality.
3. in the nozzle of the present invention, water leg 3 is provided with the apopore of nozzle chamber 2, can will be cold in water leg 3
But water is sprayed into nozzle chamber 2, is realized with gasifying agent and is sprayed after being mixed in nozzle chamber 2 in outlet 21, playing improves coal seam
The effect of combustion position and gas quality.
4. in one embodiment of nozzle of the present invention, water leg 3 offers some termination apopores at termination 12
121, it is expelled to after the gasifying agent that the cooling water outside termination 12 sprays with nozzle chamber 2 realizes external mix and reaches gasification reaction
Working face, play a part of improving coal combustion situation and gas quality, being expelled to cooling water outside termination 12 can also be to
Termination 12 cools, and nozzle is played a protective role.
5. in one embodiment of nozzle of the present invention, nozzle body 1 offers some outer wall apopores 13, outer wall water outlet
Hole 13 is used for cooling water flow out of in water leg 3 or sprayed to the outside of nozzle body 1, can give nozzle and neighbouring high-temperature coal
Layer cooling, plays a protective role to nozzle.
6. in the nozzle of the present invention, the outside of nozzle body 1 is provided with thermocouple temperature measuring apparatus 6, and devises thermometric
The different arrangement modes of device 6, underground burned out area temperature and nozzle tempering situation can effectively be monitored, and can basis
Temperature monitoring result infers thermo parameters method situation at nozzle, by the analysis of ignition temperature, can obtain underground gasification furnace
Fired state, so as to control and adjust the technological parameter of underground gasification furnace, the safety of underground gasification technology is ensure that, while also carried
High gas quality.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (8)
1. a kind of nozzle, it includes nozzle body (1), it is characterised in that is provided with water leg (3) in the nozzle body (1)
And the water-supply-pipe (4) being connected with the water leg (3), cooling water enter the water leg (3) by the water-supply-pipe (4)
To be cooled down to the nozzle body (1), the rear end of the water-supply-pipe (4) offers some hole for water sprayings (431)；
Some delivery pipe branches (41) are set between the rear end of the water-supply-pipe (4) and the water leg (3), cooling water passes through described
Water-supply-pipe (4) and the delivery pipe branch (41) input the water leg (3)；
Stretch to form an extension (43), the spray through follow-up renew of the delivery pipe branch (41) in the rear end of the water-supply-pipe (4)
Water hole (431) is opened in the extension (43).
2. nozzle as claimed in claim 1, it is characterised in that：The water leg (3) offers some apopores.
3. nozzle as claimed in claim 2, it is characterised in that：The apopore of the water leg (3) includes being opened in the spray
The outer wall apopore (13) of mouth main body (1), the termination apopore (121) for being opened in the water leg (3) side termination (12) and
Any or any combination being opened in the inwall apopore (311) of water leg inwall (31).
4. nozzle as claimed in claim 1, it is characterised in that：The delivery pipe branch (41) centered on the water-supply-pipe (4),
Circumferentially it is distributed in emitting shape.
5. nozzle as claimed in claim 1, it is characterised in that：The hole for water spraying (431) is opened in the extension (43)
Along length and/or rearward end.
6. nozzle as claimed in claim 1, it is characterised in that：Between the rear end of the water-supply-pipe (4) and the water leg (3)
Be arranged at intervals two groups of delivery pipe branches (41), the water-supply-pipe (4) be located at two groups of delivery pipe branches (41) if between part offer
Dry hole for water spraying (431).
7. nozzle as claimed in claim 1, it is characterised in that：Between the water-supply-pipe (4) and the nozzle body (1) inwall
If dry support arm (42) is set to be fixedly connected between the water-supply-pipe (4) and the nozzle body (1).
8. nozzle as claimed in claim 1, it is characterised in that：The outer wall of the nozzle body (1) and termination (12) place are provided with
Some temperature measuring equipments (6) being monitored to underground burned out area temperature, wherein termination (12) place of the nozzle body (1) is set
One, the outer wall of the nozzle body (1) at the 0.5m of the termination (12) interval with setting three, the nozzle body (1)
Outer wall and the termination (12) interval 1.5m places set three, be spaced 3 cloth at 0.5m and 1.5m with the termination (12)
Put top, the left side of the nozzle body (1) and the right side of the nozzle body (1) that mode is the nozzle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055948.1A CN104632181B (en) | 2015-02-03 | 2015-02-03 | Nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055948.1A CN104632181B (en) | 2015-02-03 | 2015-02-03 | Nozzle |
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| Publication Number | Publication Date |
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| CN104632181A CN104632181A (en) | 2015-05-20 |
| CN104632181B true CN104632181B (en) | 2018-01-16 |
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| CN201510055948.1A Active CN104632181B (en) | 2015-02-03 | 2015-02-03 | Nozzle |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041291A (en) * | 2015-06-12 | 2015-11-11 | 新奥气化采煤有限公司 | Spray nozzle |
| CN105756653B (en) * | 2015-11-11 | 2021-08-03 | 新奥科技发展有限公司 | Nozzle and gas injection device with same |
| CN105670701A (en) * | 2016-01-27 | 2016-06-15 | 西安航天源动力工程有限公司 | Ignition method of integrated CWS (coal water slurry) process burner |
| CN106423597A (en) * | 2016-10-28 | 2017-02-22 | 北京航天动力研究所 | Groove-milled diffusion welding type nozzle |
| CN108518211B (en) * | 2018-03-29 | 2024-01-30 | 中为(上海)能源技术有限公司 | Oxidant mixed injection system for underground coal gasification process and operation method |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353033A (en) * | 2011-08-09 | 2012-02-15 | 江苏大江石油科技有限公司 | High-temperature high-pressure combustion system for supercritical compound heat carrier generator |
| CN204082121U (en) * | 2014-09-17 | 2015-01-07 | 新奥气化采煤有限公司 | A kind of Coal Gasification nozzle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2507204B1 (en) * | 1981-06-05 | 1985-07-05 | Air Liquide | PROCESS AND INSTALLATION OF UNDERGROUND COAL GASIFICATION |
| CN1814355A (en) * | 2005-02-01 | 2006-08-09 | 财团法人工业技术研究院 | Gasifying furnace nozzle |
| CN103555370B (en) * | 2012-11-23 | 2015-07-29 | 新奥气化采煤有限公司 | Carbonaceous organic material gasification process and vapourizing furnace |
| CN203905923U (en) * | 2014-06-23 | 2014-10-29 | 新奥气化采煤有限公司 | Retreating type gas injection spray nozzle for underground coal gasification |
| CN104533377A (en) * | 2014-11-06 | 2015-04-22 | 新奥气化采煤有限公司 | Nozzle and gasification method thereof |
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2015
- 2015-02-03 CN CN201510055948.1A patent/CN104632181B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353033A (en) * | 2011-08-09 | 2012-02-15 | 江苏大江石油科技有限公司 | High-temperature high-pressure combustion system for supercritical compound heat carrier generator |
| CN204082121U (en) * | 2014-09-17 | 2015-01-07 | 新奥气化采煤有限公司 | A kind of Coal Gasification nozzle |
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| Publication number | Publication date |
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| CN104632181A (en) | 2015-05-20 |
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Effective date of registration: 20170207 Address after: 065001 Hebei economic and Technological Development Zone, Langfang science and Technology Park in the Southern District of B building, room 522 Applicant after: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: The 065001 Hebei economic and Technological Development Zone of Langfang Huaxiang Xinyuan host new Austrian Science and Technology Park in Southern District Applicant before: ENN Coal Gasification Co., Ltd. |
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