CN1553078A - Boosting slurry-supply system for combusting water coal slurry - Google Patents
Boosting slurry-supply system for combusting water coal slurry Download PDFInfo
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- CN1553078A CN1553078A CNA031244084A CN03124408A CN1553078A CN 1553078 A CN1553078 A CN 1553078A CN A031244084 A CNA031244084 A CN A031244084A CN 03124408 A CN03124408 A CN 03124408A CN 1553078 A CN1553078 A CN 1553078A
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Abstract
A water-coal slurry boost feeding system consists of a feeding unit, an outputting the slurry to the nozzle, a boosting device between them. The boosting device consists of a boost-feeding tank, a high pressure compressed gas cylinder connected with the boost feeding tank and an air compressor. Furthermore, two or more boost feeding tanks are connected in parallel with their outlets connected with the nozzle in parallel either. A low-pressure slurry-feeding pump can be used to replace the high pressure one and to have multiple boost-feeding tanks in parallel to boost in turn, so that it prevents the high pressure slurry-feeding pump from wear-out easily, lower cost and works normally long and continuously.
Description
Technical field
The present invention relates to a kind of supercharging pulp feeding system of metabolic water coal slurry fuel, in particular, relate to a kind of supercharging pulp feeding system of available various coal water slurry fuel overheavy firings; Supercharging air is for the water-coal-slurry strengthening combustion system of slurry global optimization, and it can be applicable to that serviceability temperature is boiler, kiln and the heaters etc. of 1600 degree with interior various power loads.
Background technology
The inventor once proposed the patent application (application number be 99233530.2) of denomination of invention for " heavy fuel High-Temperature Strengthening burner " on June 15th, 1999 to Patent Office of the People's Republic of China, it discloses a kind of new heavy fuel High-Temperature Strengthening burner, promptly High-Temperature Strengthening combustion zone expansion is extended and be distributed in the furnace chamber etc., the thermal efficiency is significantly improved.But the slurry supply pump of coal water slurry fuel combustion system normal continuous operating time under the high pressure operating mode is shorter, and the consumable accessory wearing and tearing of pump are very serious, and it is very expensive to change the consumable accessory cost, and directly influences the normal operation continuously of boiler, and has improved use cost.
Summary of the invention
Technical problem to be solved by this invention be propose at above-mentioned existing in prior technology defective a kind of simple in structure, efficient, make the supercharging pulp feeding system of a kind of metabolic water coal slurry fuel of water coal oar fuel overheavy firing reliably.
The technical scheme that solution the technology of the present invention problem is adopted is that the supercharging pulp feeding system of this metabolic water coal slurry fuel comprises that water-coal-slurry input unit (I), output water-coal-slurry arrive the water-coal-slurry output device (III) of burning spray gun, have the supercharging pulp feeding device (II) of coal water slurry fuel between water-coal-slurry input (I) and water-coal-slurry output device (III).Said supercharging pulp feeding device (II) comprise the supercharging pulp feeding jar that is connected with the defeated coal slurry pipe of water-coal-slurry input unit (I), with the tank connected pressure-air hold-up tank of supercharging pulp feeding, the pressure-air hold-up tank is connected with air compressor machine.Be connected with the pressure-air hold-up tank after the parallel connection of two or more many supercharging pulp feeding jars is arranged, be connected with the water-coal-slurry output device (III) of output water-coal-slurry after the supercharging pulp feeding jar fuel efferent duct parallel connection of many supercharging pulp feeding jars to burning spray gun.
The present invention can be replaced into the low pressure pump for mortar transmission to the high pressure slurry supply pump in the water-coal-slurry input unit (I), adopt many supercharging air slurry-supplying cans switching in parallel supercharging, every supercharging pulp feeding jar is in turn to water-coal-slurry output device (III) the supply water under high pressure coal slurry of output water-coal-slurry to burning spray gun, the long-standing technical problem of not only having avoided the high pressure slurry supply pump very easily to wear and tear fully, and significantly reduced use cost, and make combustion system can be for a long time operate as normal continuously.
Description of drawings
With reference to the accompanying drawings, further specify the present invention by description to preferred embodiment.
Fig. 1 is the supercharging pulp feeding system skeleton diagram of metabolic water coal slurry fuel of the present invention
Among the figure: I-water-coal-slurry input unit; II-supercharging pulp feeding device; III-water-coal-slurry output device; Liquid level face on the 1-circulating tank; The 2-internally piloted valve; The 3-appendix; 4-is from letting out valve; 5-circulating tank water-coal-slurry input pipe joint; Liquid level feeler on the 6-circulating tank; The 7-circulating tank; Liquid level face under the 8-circulating tank; Liquid level face feeler under the 9-circulating tank; 10-circulating tank fuel-supply pipe; 11-fuel-supply pipe hand control valve; 12-hangs down the mudjack fuel inlet pipe; 13-low pressure pump for mortar transmission; 14-low pressure pump for mortar transmission fuel efferent duct; The 15-filter; 16-fuel is carried arm; 17-fuel is carried the arm internally piloted valve; 18-fuel is carried arm; 19-fuel is carried arm; 20-fuel is carried the arm hand-operated valve; 21-fuel is carried arm; 22-fuel is carried arm; 23-fuel is carried the A arm; 24-fuel is carried A arm internally piloted valve; 25-fuel is carried A arm hand-operated valve; 26-fuel is carried the A arm; 27-A supercharging pulp feeding jar fuel output arm; 28-A supercharging pulp feeding jar fuel output arm internally piloted valve; 29-pressurized fuel efferent duct; 30-pressurized fuel efferent duct hand control valve; 31-pressurized fuel efferent duct; The 32-B spray gun is from control regulation valve; The 33-B spray gun; The 34-A spray gun is from control regulation valve; 35-A spray gun 36-B supercharging pulp feeding jar fuel efferent duct internally piloted valve; Liquid level feeler under the 37-B supercharging pulp feeding jar; Liquid level face under the 38-B supercharging pulp feeding jar; 39-B supercharging pulp feeding jar; Liquid level feeler under the 40-A supercharging pulp feeding jar; Liquid level face under the 41-A supercharging pulp feeding jar; Liquid level face on the 42-B supercharging pulp feeding jar; 43-B supercharging pulp feeding pressure tank air input internally piloted valve; 44-B supercharging pulp feeding ullage atmospheric pressure table; 45-supercharging pulp feeding ullage gas pressure release conduit; 46-B supercharging pulp feeding air is discharged internally piloted valve; 47-B supercharging pulp feeding jar superpressure air is from letting out switch; 48-B supercharging pulp feeding jar superpressure air is discharged conduit from letting out switch; 49-pressurized air carrier pipe; 50-pressurized air carrier pipe is manually controlled safety valve; 51-pressure air hold-up tank pressure-reducing valve; 52-pressure-air hold-up tank; The 53-air compressor machine; 54-A supercharging pulp feeding ullage gas is discharged internally piloted valve; 55-A supercharging pulp feeding jar water liquid level face; 56-A supercharging pulp feeding ullage gas is discharged conduit; 57-A supercharging pulp feeding jar over-pressure self-discharging switch; 58-A supercharging pulp feeding jar; 59-fuel is carried the B arm; 60-supercharging pulp feeding ullage gas pressure release conduit; Liquid level feeler on the 61-A supercharging pulp feeding jar; 62-fuel is carried B arm hand-operated valve; 63-fuel is carried B arm internally piloted valve; 64-fuel is carried the B arm; 65-A supercharging pulp feeding ullage atmospheric pressure table; 66-A supercharging pulp feeding pressure tank air input internally piloted valve; 64-fuel is carried the A arm; 65-fuel is carried A arm internally piloted valve; 66-fuel is carried A arm hand-operated valve; Liquid level feeler on the 67-B supercharging pulp feeding jar.The 68-air manometer
The specific embodiment
In the present embodiment, comprise circulating tank (7) and the fuel pump deliver line of storing fuel in the water-coal-slurry input unit (I), at the control valve that has on the fuel pump deliver line on low pressure pump for mortar transmission (13), filter (15) and the pipeline, the conveying of water-coal-slurry is replaced into low pressure pump for mortar transmission (13) by original high pressure slurry supply pump.This fuel-supply pipe is connected with A supercharging pulp feeding jar (58).In the supercharging pulp feeding device (II), two supercharging pulp feeding jars of A, B (39,58) have been adopted, two supercharging pulp feeding jars are connected with compressed air source, and two supercharging slurry cans (58,39) switch in turn mutually by the control of central switch board carries the water under high pressure coal slurry to water-coal-slurry spray gun (33,35).A supercharging pulp feeding jar fuel efferent duct (27) is connected with water-coal-slurry output device (III), water-coal-slurry output device (III) comprises internally piloted valve (28), the hand-operated valve spray gun adjusting internally piloted valve (32,34) on the grout pipe line, and this water-coal-slurry output device (III) is connected with spray gun (33,35).B supercharging pulp feeding jar (39) and A supercharging pulp feeding jar (58) fuel-supply pipe that is connected in parallel, B supercharging pulp feeding jar and fuel input/output structure are identical with A supercharging pulp feeding jar.In the supercharging pulp feeding device (II), the pressure-air gas tank (52) and the air delivery pipe that also comprise air compressor machine (53) and storage air, also be provided with pressure-reducing valve, Pressure gauge, hand-operated valve, A supercharging pulp feeding pressure tank table, internally piloted valve on the said air delivery pipe, this air delivery pipe is connected with A supercharging pulp feeding jar (58).A supercharging pulp feeding ullage gas output pipe is provided with internally piloted valve, and also is provided with over-pressure self-discharging switch (57), and this efferent duct of letting out switch (57) certainly communicates with atmosphere.B supercharging pulp feeding jar (39) air input and output and air over-pressure self-discharging construction of switch are all identical with A supercharging slurry can.Certain position up and down in A, the B supercharging pulp feeding jar is equipped with level of fuel feeler (60,40,67,37).The water-coal-slurry of circulating tank (7) output is pumped into A, B supercharging pulp feeding jar (39,58) in parallel through low pressure pump for mortar transmission (13), the supercharging pulp feeding jar that is connected with compressed air source (39,58) is supplied with water-coal-slurry spray gun with water-coal-slurry through carrier pipe by pressure air, water-coal-slurry nebulizes through the water-coal-slurry spray gun under pressure and sprays into the high-temperature burner hearth internal combustion, the supercharging pulp feeding jar that cause is connected with compressed air source is two, and two supercharging pulp feeding jars switch in turn mutually by the control of central switch board carries the water under high pressure coal slurry to the water-coal-slurry spray gun.
Water-coal-slurry supercharging pulp feeding technical process is as follows:
Water-coal-slurry,, is entered in the A supercharging pulp feeding jar (58) through the input internally piloted valve through filter (15), internally piloted valve from circulating tank (7), through hand control valve (11) extraction by low pressure pump for mortar transmission (13) again.Air is deposited in high pressure tank (52) by air compressor machine (54) compression, imports in the A supercharging pulp feeding jar (58) after pressure-reducing valve (51) decompression.Water-coal-slurry in A supercharging pulp feeding jar (58) boosted after, through A supercharging pulp feeding jar (58) output, through internally piloted valve (28), hand control valve (30), spray gun is regulated internally piloted valve (32) and is sprayed into the burner hearth internal combustion at a high speed through spray gun (33,35) again with pressure constant state.B supercharging pulp feeding jar (39) and the mutual switch operating of A supercharging pulp feeding jar (58) are controlled its entire work process by central switch board (not shown).
Open central switch board circulating tank fuel input autocontrol switch (not shown), water-coal-slurry is sent in the circulating tank (7) by circulating tank input pipe joint (5) through slurry tank car efferent duct (not shown), internally piloted valve (2) is opened simultaneously automatically, discharge air in the circulating tank, water-coal-slurry rises to liquid level face (1) near feeler (6) in circulating tank (7), sensor sends signal to central switch board, central authorities' switch board just instructs internally piloted valve (2) to close, thereafter behind certain hour, open automatically again, while sound, the light (not shown) sends the full warning of slurry, but also keep certain time of fire alarming, at this moment starch the tank car (not shown) and stop defeated slurry in circulating tank (7).Otherwise, when water-coal-slurry in the circulating tank drops to liquid level face (8) near feeler (9), sensor (9) sends signal to central switch board, central authorities' switch board just instructs approval internally piloted valve (2) to open automatically, and sound, light send scarce slurry warning simultaneously, but also keep certain time of fire alarming equally, the slurry tank car is transporting water coal slurry in circulating tank (7) just, to keep storing in the circulating tank (7) sufficient coal water slurry fuel is arranged.
Earlier manually open hand-operated valve (11) this moment, starts the switch (not shown) of central switch board low pressure pump for mortar transmission (13) then, and central switch board is instruction unpack internally piloted valve 17,24,54 simultaneously; Close internally piloted valve (63), (this moment, hand-operated valve 62,25 all was in closed condition), water-coal-slurry is through carrier pipe (10), hand-operated valve (11), carrier pipe (12) by low pressure pump for mortar transmission (13) pump through efferent duct (14), and after being filtered device (15) and filtering again through carrier pipe (16), internally piloted valve (24), carrier pipe (26) are transported in the A supercharging pulp feeding jar (58).Meanwhile, the air in the A supercharging pulp feeding jar (58) is through relief tube (60), and internally piloted valve (54), relief tube (56) enter in the atmosphere.When water-coal-slurry in the A supercharging pulp feeding jar (58) rose to liquid level on the fuel (56) near feeler (61), sensor (61) sent signal to central switch board, and central switch board just instructs and opens internally piloted valve 63,46 earlier; Close internally piloted valve (24) then, at this moment just stop defeated slurry in the A supercharging supplies jar (58), water-coal-slurry is just by carrier pipe (22), and internally piloted valve (63), carrier pipe (59) are transported in the B supercharging pulp feeding jar (39).When water-coal-slurry in the B supercharging pulp feeding jar (39) rises to that liquid level face (42) is near feeler (67) on the fuel, sensor sends signal to central switch board, central authorities' switch board sends down the example instruction according to setting program: A supercharging pulp feeding jar is when supercharging output fuel, just low pressure pump for mortar transmission (13), internally piloted valve 63,46 are closed in instruction earlier, open internally piloted valve 66,28 then; When coal water slurry fuel in the A supercharging pulp feeding jar (58) has dropped to liquid level face (41) near feeler (40), central authorities' switch board just instructs closes internally piloted valve (46) earlier, open internally piloted valve 43,36 then, close internally piloted valve 66,28 then, and then open internally piloted valve 54,24.A, B supercharging pulp feeding jar (58,39) switch long-term work as mentioned above mutually.
When starting the defeated slurry of low pressure pump for mortar transmission (13), central authorities' switch board just instructs and starts air compressor machine (53) to pressure-air gas tank (52) compressed air, when being stored to the air of rated pressure capacity in the gas tank (52), air compressor machine (53) just quits work, otherwise, when the air of storing in the gas tank (52) was lower than specified pressure capability, air compressor machine (53) was just worked automatically, and long-term work so moves in circles.
When starting burning, open hand-operated valve (50 earlier, 30), open central switch board electronic ignition switch (not shown) firing point firelock then, burning torch burning light oil or gaseous fuel, after burning reaches specified certain hour, the inboard wall of burner hearth surface temperature raises rapidly, poly-temperature is rubescent, at this moment, central authorities' controller chassis is opened internally piloted valve (66) earlier, the air of rated pressure from cylinder (52) after pressure-reducing valve (51) reduces pressure rated pressure again through manual safety valve (50), appendix (49), internally piloted valve (66) is input in the A supercharging pulp feeding jar (58), make this jar be pressurized to specified pressure, central authorities' switch board is opened internally piloted valve (28) then, and from control regulation valve (33), (35) be opened to burning and start required metered flow, coal water slurry fuel just from A supercharging pulp feeding jar (58) through carrier pipe (27), internally piloted valve (28), hand-operated valve (30), carrier pipe (31), again through internally piloted valve (32), (34) from spray gun (33,35) a mouthful high speed sprays in the burner hearth, atomizing thinner coal water slurry fuel atomization air flow is uniformly lighted by the burning torch burned flame and is taken fire, and burning torch cuts out automatically behind the certain hour.
By the time when the interior coal water slurry fuel liquid level of A supercharging pulp feeding jar (58) drops to liquid level face (41) near feeler (40), central authorities' switch board just instructs closes internally piloted valve (46) earlier, after open internally piloted valve (43,36), and then close internally piloted valve (66,28), and then open internally piloted valve (54,24,17) and start low pressure pump for mortar transmission (13) defeated slurry in A supercharging pulp feeding jar, make A, B supercharging pulp feeding jar (58,39) the switching supercharging that moves in circles, to spray gun (33,35) long-term continous-stable reaches low pressure pump for mortar transmission (13) displacement high pressure slurry supply pump with this for slurry.
Before the burn-out, press central switch board stop button (not shown), central authorities' switch board just instructs closes internally piloted valve (32,34,28,36,17,63,43,66) and low pressure slurry supply pump (13), air compressor machine (53), this moment, combustion system quit work, if the long period quits work, answer manual-lock fuel-supply pipe hand control valve (11), fuel efferent duct hand control valve (30) and pressurized air carrier pipe hand control valve (50).
Because the present invention adopts two supercharging slurry cans of A, B to switch supercharging air mutually for slurry.Thereby the high pressure slurry supply pump is replaced into low pressure pump for mortar transmission (13), has solved this technical bottleneck, and be in the good operating mode of constant voltage voltage stabilizing, make can be for a long time normal continuously operation of boiler, pump for mortar transmission is under low pressure moved and prolonged tens of times of service lifes for slurry.A large amount of manufacturings, operating cost have also been saved simultaneously.
Present device is simple and practical reliable, the high pressure slurry supply pump is replaced into the low pressure pump for mortar transmission, adopt many supercharging air slurry-supplying cans to switch supercharging, the long-standing technical problem of not only having avoided the high pressure slurry supply pump very easily to wear and tear fully, and significantly reduced use cost, and combustion system can continuous for a long time operate as normal be become a reality; The needs that can extensively adapt to the multiple type of furnace and multistage power load fully satisfy the production status coupling.Be the extensive utilization of water-coal-slurry, crucial burning process be provided and optimized the equipment series of one, very extensively adapt to current domestic and international with can and the needs of energy structure optimizing from now on.
Claims (8)
1, a kind of supercharging pulp feeding system of metabolic water coal slurry fuel, comprise that water-coal-slurry input unit (I), output water-coal-slurry arrive the water-coal-slurry output device (III) of burning spray gun, is characterized in that having the supercharging pulp feeding device (II) of coal water slurry fuel between water-coal-slurry input (I) and water-coal-slurry output device (III).
2, the supercharging pulp feeding system of metabolic water coal slurry fuel according to claim 1, it is characterized in that said supercharging pulp feeding device (II) comprise the supercharging pulp feeding jar that is connected with the defeated coal slurry pipe of water-coal-slurry input unit (I), with the tank connected pressure-air hold-up tank of supercharging pulp feeding, the pressure-air hold-up tank is connected with air compressor machine.
3, the supercharging pulp feeding system of metabolic water coal slurry fuel according to claim 2, be connected with the pressure-air hold-up tank after it is characterized in that having the parallel connection of two or more many supercharging pulp feeding jars, be connected with the water-coal-slurry output device (III) of output water-coal-slurry after the supercharging pulp feeding jar fuel efferent duct parallel connection of many supercharging pulp feeding jars to burning spray gun.
4, according to the supercharging pulp feeding system of claim 1 or 2 or 3 described metabolic water coal slurry fuels, it is characterized in that comprising circulating tank (7) and the fuel pump deliver line of storing fuel in the water-coal-slurry input unit (I), at the control valve that has on the fuel pump deliver line on low pressure pump for mortar transmission (13), filter (15) and the pipeline.
5, the supercharging pulp feeding system of metabolic water coal slurry fuel according to claim 3, it is characterized in that in the supercharging pulp feeding device (II), two supercharging pulp feeding jars of A, B (39,58) have been adopted, two supercharging pulp feeding jars are connected with compressed air source, and two supercharging slurry cans (58,39) switch in turn mutually by the control of central switch board carries the water under high pressure coal slurry to water-coal-slurry spray gun (33,35).
6, the supercharging pulp feeding system of metabolic water coal slurry fuel according to claim 5, it is characterized in that water-coal-slurry output device (III) comprises internally piloted valve (28), the hand-operated valve spray gun adjusting internally piloted valve (32,34) on the grout pipe line, this water-coal-slurry output device (III) is connected with spray gun (33,35).
7, the supercharging pulp feeding system of metabolic water coal slurry fuel according to claim 2, it is characterized in that in the supercharging pulp feeding device (II), the pressure-air gas tank (52) and the air delivery pipe that comprise air compressor machine (53) and storage air, air delivery pipe is provided with pressure-reducing valve, Pressure gauge, hand-operated valve, supercharging pulp feeding pressure tank table, internally piloted valve, this air delivery pipe is connected with supercharging pulp feeding jar (58), supercharging pulp feeding ullage gas output pipe is provided with internally piloted valve, supercharging pulp feeding jar (58) also is provided with over-pressure self-discharging switch (57), and this efferent duct of letting out switch (57) certainly communicates with atmosphere.
8, the supercharging pulp feeding system of metabolic water coal slurry fuel according to claim 7 is characterized in that the position up and down in the supercharging pulp feeding jar (58,39), is equipped with level of fuel feeler (60,40,67,37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031244084A CN1553078A (en) | 2003-05-26 | 2003-05-26 | Boosting slurry-supply system for combusting water coal slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031244084A CN1553078A (en) | 2003-05-26 | 2003-05-26 | Boosting slurry-supply system for combusting water coal slurry |
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| Publication Number | Publication Date |
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| CN1553078A true CN1553078A (en) | 2004-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA031244084A Pending CN1553078A (en) | 2003-05-26 | 2003-05-26 | Boosting slurry-supply system for combusting water coal slurry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956992A (en) * | 2010-09-06 | 2011-01-26 | 江苏秋林重工股份有限公司 | Low rank coal fuel coal water slurry and gasified coal water slurry complete production unit |
| CN102155736A (en) * | 2011-04-05 | 2011-08-17 | 上海夏能新能源科技有限责任公司 | Control device for water-coal-slurry burner |
| CN105929802A (en) * | 2016-05-24 | 2016-09-07 | 佛山市富利包装机械有限公司 | Long-distance production line circulating slurry conveying system |
| CN109370661A (en) * | 2018-12-19 | 2019-02-22 | 西北化工研究院有限公司 | A kind of coal slurry pressurization pneumatic feed systems and method |
-
2003
- 2003-05-26 CN CNA031244084A patent/CN1553078A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956992A (en) * | 2010-09-06 | 2011-01-26 | 江苏秋林重工股份有限公司 | Low rank coal fuel coal water slurry and gasified coal water slurry complete production unit |
| CN102155736A (en) * | 2011-04-05 | 2011-08-17 | 上海夏能新能源科技有限责任公司 | Control device for water-coal-slurry burner |
| CN105929802A (en) * | 2016-05-24 | 2016-09-07 | 佛山市富利包装机械有限公司 | Long-distance production line circulating slurry conveying system |
| CN109370661A (en) * | 2018-12-19 | 2019-02-22 | 西北化工研究院有限公司 | A kind of coal slurry pressurization pneumatic feed systems and method |
| CN109370661B (en) * | 2018-12-19 | 2020-08-07 | 西北化工研究院有限公司 | Coal slurry pressurizing pneumatic feeding system and method |
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