CN201643794U - Water-coal-slurry gasified burner cooling water gas-water separator with nitrogen gas distributor - Google Patents
Water-coal-slurry gasified burner cooling water gas-water separator with nitrogen gas distributor Download PDFInfo
- Publication number
- CN201643794U CN201643794U CN 201020000503 CN201020000503U CN201643794U CN 201643794 U CN201643794 U CN 201643794U CN 201020000503 CN201020000503 CN 201020000503 CN 201020000503 U CN201020000503 U CN 201020000503U CN 201643794 U CN201643794 U CN 201643794U
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- separator
- cooling water
- water
- nitrogen gas
- gas
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Abstract
The utility model solves the technical problem of providing a water-coal-slurry gasified burner cooling water gas-water separator with a nitrogen gas distributor. The gas-water separator comprises a separator body, a blow-down pipe arranged at the top of the separator body, a cooling water inlet and a cooling water outlet; a CO on-line monitor is arranged in the blow-down pipe; an overflow pipe is connected in the separator body above the cooling water outlet; the nitrogen gas distributor is arranged below the nozzle of the overflow pipe; and a nitrogen gas inlet is arranged outside the separator body. The gas-water separator has the advantages that on one hand, the nitrogen gas distributor is arranged below the nozzle of the overflow pipe, can fully strip CO in cooling water during operation, and alleviate the problem that as CO is diluted when nitrogen gas is filled in a prior separator, the real CO concentration can be difficult to obtain through on-line monitoring; and on the other hand, the design of a one-way pressure vent valve solves the problem that air gets into the prior separator to form explosive mixed gas when negative pressure is formed in the prior separator.
Description
Technical field
The utility model relates to a kind of moisture trap that can be used for coal water slurry gasification device burner cooling water system.
Background technology
Coal water slurry gasification technology is that water-coal-slurry and oxygen spray into gasification furnace by burner, and the process that oxidation reaction generates synthesis gas (CO+H2) takes place under the high-temperature and high-pressure conditions in gasification furnace.Coal water slurry gasification device burner is at high temperature worked, and in order to protect burner, is provided with cooling coil and head water leg on burner, in order to prevent that cooling off burner high temperature damages.Water in the burner bosh is sent in the burner cooling coil after cooling.The water that goes out cooling coil is through burner cooling water separator, flashes back in the blunt but tank by gravity current, forms the circulation of burner cooling water.The burner cooling water coil damages easily, high pressure synthesis gas in the gasification furnace enters in the burner cooling water coil, the effect of burner cooling water moisture trap is that the CO in the burner cooling water is separated, and by the content of the CO on-line monitoring instrument on-line monitoring CO that is positioned at the moisture trap blow-down pipe, to determine whether the burner cooling water coil leaks.The carrier gas that logical low-pressure nitrogen is analyzed as CO in the separator, carrier gas enters atmosphere through blow-down pipe.
At present, in moisture trap upper gaseous phase space, feed nitrogen usually, because the diluting effect of nitrogen, cause on-line monitoring to be difficult to obtain real CO concentration, can't judge burner cooling water coil leakage situation, in time interlocking stops, cause the damage of burner on the one hand, influence ordinary production; On the other hand, cause gasification furnace inner high voltage synthesis gas to enter the low pressure burner cooling water system, line fracture, synthesis gas leaks into outside the gasification furnace, meets incendiary source breaking out of fire blast, causes personnel's injures and deaths and property loss, and consequence will be very serious.In addition, because the fluctuation of operation, liquid level fluctuates up and down in the moisture trap, easily forms negative pressure, in case the air of outside enters moisture trap, forms explosive mist with CO, same easily breaking out of fire, blast, and consequence will be very serious.
The utility model content
Technical problem to be solved in the utility model provides a kind of coal water slurry gasification burner cooling water moisture trap that has the nitrogen distributor.Be to alleviate existing separator feeding nitrogen on the one hand and cause CO diluted, on-line monitoring is difficult to obtain the problem of real CO concentration; On the other hand, when solving existing separator and forming negative pressure, air enters the problem that separator and CO form explosive mist.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the coal water slurry gasification burner cooling water moisture trap that has the nitrogen distributor that provides, comprise separator body and the blow-down pipe that is arranged at the separator bodies top, and cooling water inlet and coolant outlet, establish CO on-line monitoring instrument in the blow-down pipe, be connected with overflow pipe in the separator body of coolant outlet top, overflow pipe mouth of pipe below is provided with the nitrogen gas distributor, and nitrogen inlet is arranged at separator, and this is external.
Be provided with unidirectional breather valve above in blow-down pipe, being positioned at CO on-line monitoring instrument as further improvement.
The course of work: the cooling water from the burner cooling water coil is entered in the burner cooling water moisture trap body by the cooling water inlet, liquid level raises gradually, after liquid level was elevated to the overflow pipe mouth of pipe, cooling water entered the overflow mouth of pipe, was flowed back in the burner bosh by coolant outlet by gravity.Under the normal operation, be divided into above gas-phase space of overflow pipe mouth of pipe height and following liquid phase space in the moisture trap.
Low-pressure nitrogen is entered by the nitrogen inlet that is positioned at liquid phase space, bottom, enters in the burner cooling water moisture trap body through the nitrogen gas distributor.Increased contact area with cooling water by the homodisperse nitrogen of nitrogen gas distributor, helped the stripping of CO.Nitrogen bubble moves upward, because the CO gas stripping that dissolves in the cooling water is come out in the stripping effect.Its principle meets Henry's law (Henry's law is under uniform temperature and poised state, and the equilibrium partial pressure of the solubility of gas in liquid and this gas is directly proportional).CO in the cooling water is constantly come out by stripping, enters in the nitrogen bubble.The nitrogen that is carrying CO enters gas-phase space, moves upward along blow-down pipe, and emptying, online CO monitor can detect CO concentration, and when CO concentration reached the interlocking value, the gasification furnace interlocking stopped.
Generally speaking, be malleation in the moisture trap, nitrogen can enter in the atmosphere by the unidirectional breather valve of blow-down pipe.Because operation is fluctuateed when producing negative pressure, and unidirectional breather valve cuts out, stop air to enter in the moisture trap body when the moisture trap body, prevent to produce explosive mist.
The beneficial effects of the utility model are: on the one hand, the nitrogen disperser is arranged at the below of the overflow pipe mouth of pipe, the abundant CO in stripping cooling water during use has been alleviated existing separator and has been fed nitrogen and cause CO diluted, and on-line monitoring is difficult to obtain the problem of real CO concentration; On the other hand, the design of unidirectional breather valve, when solving existing separator and forming negative pressure, air enters the problem that separator and CO form explosive mist.
Description of drawings
The structural representation of Fig. 1, the novel burner cooling water of the utility model coal water slurry gasification device moisture trap.
The specific embodiment
The coal water slurry gasification burner cooling water moisture trap that has the nitrogen distributor as shown in Figure 1, comprise separator body 4 and the blow-down pipe 7 that is arranged at separator body 4 tops, and cooling water inlet 5 and coolant outlet 3, establish CO on-line monitoring instrument 8 in the blow-down pipe 7, be connected with overflow pipe 6 in the separator body 4 of coolant outlet 3 tops, overflow pipe 6 mouths of pipe below is provided with nitrogen gas distributor 2, and nitrogen inlet 1 is arranged at outside the separator body 4.Be provided with unidirectional breather valve 9 above in blow-down pipe 7, being positioned at CO on-line monitoring instrument 8.
The utility model not only is confined to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but on its shape or structure, do any variation; every have identical with a utility model or akin technical scheme, all within its protection domain.
Claims (2)
1. the coal water slurry gasification burner cooling water moisture trap that has the nitrogen distributor, comprise separator body (4) and be arranged at the blow-down pipe (7) at separator body (4) top, and cooling water inlet (5) and coolant outlet (3), establish CO on-line monitoring instrument (8) in the blow-down pipe (7), it is characterized in that: be connected with overflow pipe (6) in the separator body (4) of coolant outlet (3) top, overflow pipe (6) mouth of pipe below is provided with nitrogen gas distributor (2), and nitrogen inlet (1) is arranged at outside the separator body (4).
2. the novel burner cooling water of coal water slurry gasification device according to claim 1 moisture trap is characterized in that: be positioned at CO on-line monitoring instrument (8) top and be provided with unidirectional breather valve (9) in blow-down pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020000503 CN201643794U (en) | 2010-01-06 | 2010-01-06 | Water-coal-slurry gasified burner cooling water gas-water separator with nitrogen gas distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020000503 CN201643794U (en) | 2010-01-06 | 2010-01-06 | Water-coal-slurry gasified burner cooling water gas-water separator with nitrogen gas distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201643794U true CN201643794U (en) | 2010-11-24 |
Family
ID=43108988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020000503 Expired - Lifetime CN201643794U (en) | 2010-01-06 | 2010-01-06 | Water-coal-slurry gasified burner cooling water gas-water separator with nitrogen gas distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201643794U (en) |
-
2010
- 2010-01-06 CN CN 201020000503 patent/CN201643794U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |