CN2557812Y - Spraying gun for coal water mixture (CWM) - Google Patents
Spraying gun for coal water mixture (CWM) Download PDFInfo
- Publication number
- CN2557812Y CN2557812Y CN 02276979 CN02276979U CN2557812Y CN 2557812 Y CN2557812 Y CN 2557812Y CN 02276979 CN02276979 CN 02276979 CN 02276979 U CN02276979 U CN 02276979U CN 2557812 Y CN2557812 Y CN 2557812Y
- Authority
- CN
- China
- Prior art keywords
- slurry
- inlet tube
- tube
- coal
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 5
- 239000000203 mixture Substances 0.000 title description 2
- 239000003245 coal Substances 0.000 title 1
- 238000005507 spraying Methods 0.000 title 1
- 239000002002 slurry Substances 0.000 claims abstract description 42
- 238000000889 atomisation Methods 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 23
- 239000003250 coal slurry Substances 0.000 claims description 51
- 239000007789 gas Substances 0.000 description 40
- 238000000034 method Methods 0.000 description 4
- 238000009955 starching Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Nozzles (AREA)
Abstract
A CWS spray gun comprises a nozzle, a gas tube, a positioning flange, an atomized gas inlet tube, a connecting flange, a pressure gas inlet tube, a CWS inlet tube, an oil inlet tube and a slurry tube, wherein, the nozzle is connected with the gas tube through the connecting nut of the nozzle; the positioning flange which takes positioning effect is sleeved on the gas tube; the gas tube, the CWS inlet tube and the slurry tube are connected through flanges; the slurry tube is arranged in the inner cavity of the gas tube; a gap is formed between the gas tube and the slurry tube to structure an atomized gas channel which is communicated with the nozzle through the gas inlet holes uniformly distributed on the circumference of the middle segment of the nozzle; the atomized gas inlet tube is arranged on the gas tube, with the opening communicated with the atomized gas channel; a wind intake sleeve of the nozzle is extended into the gap between the gas tube and the slurry tube and is sleeved on the slurry tube; the pressure gas inlet tube and the oil inlet tube are arranged on the CWS inlet tube; the pressure gas inlet tube, the CWS inlet tube and the oil inlet tube are respectively communicated with the slurry tube; the CWS inlet tube shares a same axis with the slurry tube. The utility model is of simple structure, good anti-plugging performance and good atomization performance, which is applied to boilers of oil burning and CWS burning.
Description
Technical field
The utility model relates to a kind of combustion apparatus, particularly a kind of water-coal-slurry spray gun.
Technical background
Spray gun is a vitals in the cool water mixture burning equipment.During the work of water-coal-slurry spray gun, because there are certain pressure in coal slurry and atomization gas, generally can blockage phenomenon.But when stopping for slurry, the part coal slurry can be trapped in spray gun and the nozzle, if they are not removed, the high temperature of environment can make them solidify rapidly and with spray gun and spray nozzle clogging, use so not only for next time and bring very big inconvenience, even can cause security incident such as damage of facilities.Traditional anti-blocking method is: (1) stops starching the back at once with in spray gun and the nozzle-integrated immersion water, though this method can guarantee the coal slurry in spray gun and the nozzle and keep liquid condition and unlikely obstruction, but when nozzle is when being made by the relatively poor fragile material of thermal shock resistances such as carbide alloy and pottery, the fusion meeting of temperature causes nozzle crackle and broken breakoff phenomenon such as collapse to occur; Jumbo in addition spray gun volume is big, weight is big, and this method operation was both inconvenient, and labour intensity is also big.(2) by the special-purpose cleansing pin device that is provided with the water-coal-slurry in the nozzle is ejected, this method is not suitable for complex-shaped nozzle, and can't remove the coal slurry in the spray gun slurry pipe.(3) adopt coal slurry in the gases at high pressure nozzle clearing, but the part coal slurry of existing spray gun structure in can only nozzle clearing, the coal slurry in the spray gun slurry pipe still can't be removed.
Summary of the invention
The purpose of this utility model is exactly to solve existing spray gun to stop up serious or the nozzle coal slurry is removed unclean problem, provide a kind of simply, anti-blocking coal slurry spray gun efficiently.
Technical scheme: the water-coal-slurry spray gun comprises nozzle 1, tracheae 3, locating flange 4, atomization gas inlet tube 5, adpting flange 6, pressure gas inlet tube 7, water-coal-slurry inlet tube 8, oil inlet pipe 9 and slurry pipe 10, wherein nozzle 1 is connected with tracheae 3 by its attaching nut, the locating flange 4 that plays positioning action is placed on the tracheae 3, and tracheae 3, water-coal-slurry inlet tube 8, slurry pipe 10 connect by adpting flange 6; Described slurry pipe 10 is installed in chamber within the tracheae 3, forms a slit between tracheae 3 and the slurry pipe 10 and constitutes atomization gas passage atomization gas passage 20, and this atomization gas passage 20 communicates with nozzle 1 by the circumferential uniform air admission hole of nozzle 1 intermediate section; Atomization gas inlet tube 5 is installed on the tracheae 3, and opening communicates with atomization gas passage 20, and the slit that the air intake cover of nozzle 1 extend between tracheae 3 and the slurry pipe 10 is enclosed within on the slurry pipe 10; Pressure gas inlet tube 7 is installed on the water-coal-slurry inlet tube 8 with oil inlet pipe 9, and pressure gas inlet tube 7, water-coal-slurry inlet tube 8, oil inlet pipe 9 are communicated with slurry pipe 10 respectively, and water-coal-slurry inlet tube 8 is on the same axis with slurry pipe 10.
Atomization gas inlet tube 5, pressure gas inlet tube 7, water-coal-slurry inlet tube 8, oil inlet pipe 9 all are equipped with the valve of control switching.Correspondingly connect or close according to requirement respectively during use for slurry, fuel feeding and air feed.
Enter the pressed gas of tracheae by the atomization gas inlet tube, by the nozzle intermediate section circumferentially uniform air admission hole enter nozzle.For when slurry, water-coal-slurry enters nozzle by water-coal-slurry inlet tube and slurry pipe, be subjected to impact from the gases at high pressure of mouth pipe after, through nozzle atomization and ejection.When stopping starching, pressure air enters tracheae, slurry pipe and nozzle respectively by atomization gas inlet tube and pressure gas inlet tube, with the water-coal-slurry full scale clearance that is trapped in slurry pipe and the nozzle.
The utility model is simple in structure, and is anti-blocking good with atomization, is applicable to oil firing and the boiler of the coal slurry of heating up water.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1, the water-coal-slurry spray gun comprises nozzle 1, tracheae 3, locating flange 4, atomization gas inlet tube 5, adpting flange 6, pressure gas inlet tube 7, water-coal-slurry inlet tube 8, oil inlet pipe 9 and slurry pipe 10, wherein nozzle 1 is connected with tracheae 3 by its attaching nut, the locating flange 4 that plays positioning action is placed on the tracheae 3, and tracheae 3, water-coal-slurry inlet tube 8, slurry pipe 10 connect by adpting flange 6; Described slurry pipe 10 is installed in chamber within the tracheae 3, forms a slit between tracheae 3 and the slurry pipe 10 and constitutes atomization gas passage 20, and this atomization gas passage 20 communicates with nozzle 1 by the circumferential uniform air admission hole of nozzle 1 intermediate section; Atomization gas inlet tube 5 is installed on the tracheae 3, and opening communicates with atomization gas passage 20, and the slit that the air intake cover of nozzle 1 extend between tracheae 3 and the slurry pipe 10 is enclosed within on the slurry pipe 10; Pressure gas inlet tube 7 is installed on the water-coal-slurry inlet tube 8 with oil inlet pipe 9, and pressure gas inlet tube 7, water-coal-slurry inlet tube 8, oil inlet pipe 9 are communicated with slurry pipe 10 respectively, and water-coal-slurry inlet tube 8 is on the same axis with slurry pipe 10.
Atomization gas inlet tube 5, pressure gas inlet tube 7, water-coal-slurry inlet tube 8, oil inlet pipe 9 all are equipped with the valve of control switching.Pressure gas inlet tube 7 is vertically mounted on the water-coal-slurry inlet tube 8 with oil inlet pipe 9, and pressure gas inlet tube 7 is aimed at mutually with the opening of oil inlet pipe 9.Tracheae 3, water-coal-slurry inlet tube 8, slurry pipe 10 weld together by adpting flange 6.
During oil firing, by-pass valve control tubing valve 14, the atomization gas valve 11 of oil inlet pipe 9 and atomization gas inlet tube 5 all are in opening state, and by-pass valve control pressure air valve 12, the water-coal-slurry valve 13 of pressure gas inlet tube 7 and water-coal-slurry inlet tube 8 all are in closed condition.When heating up water coal slurry, the by-pass valve control atomization gas valve 11 of atomization gas inlet tube 5 and water-coal-slurry inlet tube 8, water-coal-slurry valve 13 all are in opening state, and the by-pass valve control pressure air valve 12 of pressure gas inlet tube 7 and oil inlet pipe 9, tubing valve 14 all are in closed condition.When stopping starching, by-pass valve control atomization gas valve 11, the pressure air valve 12 of atomization gas inlet tube 5 and pressure gas inlet tube 7 all are in opening state, and other valve is in closed condition.Closing on the oil inlet pipe 9 forms the cavity that an end seals at this moment, and remaining coal slurry wherein is flushed away under the pressed gas effect.The effect of locating flange 4 is the relative positions when guaranteeing that spray gun is worked in combustion apparatus.
Claims (4)
1, a kind of water-coal-slurry spray gun, it is characterized in that comprising nozzle (1), tracheae (3), locating flange (4), atomization gas inlet tube (5), adpting flange (6), pressure gas inlet tube (7), water-coal-slurry inlet tube (8), oil inlet pipe (9) and slurry pipe (10), wherein nozzle (1) is connected with tracheae (3) by its attaching nut, the locating flange (4) that plays positioning action is placed on the tracheae (3), and tracheae (3), water-coal-slurry inlet tube (8), slurry pipe (10) connect by adpting flange (6); Described slurry pipe (10) is installed in chamber within the tracheae (3), form a slit between tracheae (3) and the slurry pipe (10) and constitute atomization gas passage atomization gas passage (20), this atomization gas passage (20) communicates with nozzle (1) by the circumferential uniform air admission hole of nozzle (1) intermediate section; Atomization gas inlet tube (5) is installed on the tracheae (3), and opening communicates with atomization gas passage (20), and the slit that the air intake cover of nozzle (1) extend between tracheae (3) and the slurry pipe (10) is enclosed within on the slurry pipe (10); Pressure gas inlet tube (7) is installed on the water-coal-slurry inlet tube (8) with oil inlet pipe (9), pressure gas inlet tube (7), water-coal-slurry inlet tube (8), oil inlet pipe (9) are communicated with slurry pipe (10) respectively, and water-coal-slurry inlet tube (8) is on the same axis with slurry pipe (10).
2, a kind of water-coal-slurry spray gun as claimed in claim 1 is characterized in that described atomization gas inlet tube (5), pressure gas inlet tube (7), water-coal-slurry inlet tube (8), oil inlet pipe (9) all are equipped with the valve of control switching.
3, a kind of water-coal-slurry spray gun as claimed in claim 1 is characterized in that described pressure gas inlet tube (7) and oil inlet pipe (9) are vertically mounted on the water-coal-slurry inlet tube (8), and pressure gas inlet tube (7) is aimed at mutually with the opening of oil inlet pipe (9).
4, a kind of water-coal-slurry spray gun as claimed in claim 1 is characterized in that described tracheae (3), water-coal-slurry inlet tube (8), slurry pipe (10) weld together by adpting flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276979 CN2557812Y (en) | 2002-07-25 | 2002-07-25 | Spraying gun for coal water mixture (CWM) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276979 CN2557812Y (en) | 2002-07-25 | 2002-07-25 | Spraying gun for coal water mixture (CWM) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2557812Y true CN2557812Y (en) | 2003-06-25 |
Family
ID=33740712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276979 Expired - Fee Related CN2557812Y (en) | 2002-07-25 | 2002-07-25 | Spraying gun for coal water mixture (CWM) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2557812Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918355A (en) * | 2019-10-30 | 2020-03-27 | 福之匠精工科技(昆山)有限公司 | Piezoelectric precision spraying device |
-
2002
- 2002-07-25 CN CN 02276979 patent/CN2557812Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918355A (en) * | 2019-10-30 | 2020-03-27 | 福之匠精工科技(昆山)有限公司 | Piezoelectric precision spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |