CN103566609A - Flash tank provided with fractional condenser and liquid drop removing device - Google Patents
Flash tank provided with fractional condenser and liquid drop removing device Download PDFInfo
- Publication number
- CN103566609A CN103566609A CN201210266350.3A CN201210266350A CN103566609A CN 103566609 A CN103566609 A CN 103566609A CN 201210266350 A CN201210266350 A CN 201210266350A CN 103566609 A CN103566609 A CN 103566609A
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- flash tank
- removing device
- fractional condenser
- liquid drop
- segregator
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Abstract
The invention relates to a flash tank provided with a fractional condenser and a liquid drop removing device, and belongs to pressure vessels. The flash tank is special for a patent "a sludge thermohydrolysis and anhydration integral novel technology" applied by the applicant. The flash tank provided with the fractional condenser and the liquid drop removing device comprises a shell body, an upper end socket, a lower end socket, the fractional condenser, the liquid drop removing device, a steam inlet pipe, a non-condensable gas outlet pipe, a condensate water outlet pipe, a sewage discharge pipe, a cooling water inlet-outlet connection pipe, a safety valve, a pressure gauge, a temperature gauge, a liquid level meter, a support frame and a heat preservation layer, and is characterized in that the fractional condenser and the liquid drop removing device are arranged in the flash tank, the fractional condenser is a spiral-plate heat exchanger, cooling water flows through spiral channels which are round trips, and gaseous phase flows through vertical straight paths which are single strip. Different from common flash purposes, the flash tank provided with the fractional condenser and the liquid drop removing device does not aim at the maximization of steam state products, aims at the maximization of liquid state products, can meet particular requirements for the patent "a sludge thermohydrolysis and anhydration integral novel technology", controls the pressure of flash through regulation of the cooling intensity of the fractional condenser, and further achieves the purpose of regulating the low drying degree of exhaust steam.
Description
Affiliated technical field
The present invention relates to a kind of special-purpose flash tank of new technology > > patent that is specifically designed to a < < sludge hot hydrolysis-desiccation integral of being invented by applicant.
Background technology
Fluid is heated to the liquidus curve corresponding temperature under this pressure under certain pressure, then inject the lower lower container of stage pressure, suddenly dilatation, the process that makes segment fluid flow be vaporizated into steam is called as flash distillation flash distillation, also claiming expander, is an important chemical engineering unit operation, and high pressure-temperature fluid is through decompression, its boiling point is reduced, enter flash tank.At this moment, fluid temperature (F.T.) is higher than the boiling point under this pressure.Known flash distillation object, is to make fluid boiling vaporization rapidly in flash tank, when obtaining a large amount of steam, reduces liquidus temperature, and makes two to be separated.The effect of flash tank is to provide the space of the rapid gasification of fluid and vapor-liquid separation.Flash distillation is widely used in PETROLEUM PROCESSING, the recovery of discharging of boiler and geothermal power generation in Thermal Power Station, expansion drying, desalinization, flash distillation enrichment and compression refrigeration circulation after milk pasteurization.
Summary of the invention
Completely different with known flash distillation object, be exclusively used in the present invention of the new technology > > of a < < sludge hot hydrolysis-desiccation integral, do not pursue the maximization of steam state product, what pursue is the maximization of liquid product, to adapt to the technological requirement of " low mass dryness fraction ", for this reason, pressure differential between the exhaust steam pressure in the equalizing pressure of flash tank and pyrohydrolysis reactor (hereinafter to be referred as flashing pressure) and pyrohydrolysis reactor is unsuitable large, this pressure differential has an optimum value, it depends on dischargeable capacity size and the ratio of pyrohydrolysis reactor and flash tank, the heating intensity of pyrohydrolysis reactor and the intensity of cooling of flash tank, the configuration quantity of pyrohydrolysis reactor and flash tank and predetermined steam discharge number of times how many and the moisture content of raw sludge and the finished product moisture content of setting, can calculate and predict by theory.In one embodiment, the moisture content of raw sludge be 80% and the finished product moisture content set be 40%, this pressure differential of recommendation is 1MPa.
Below in conjunction with accompanying drawing and typical embodiment, the invention will be further described.
Should illustrate, described drawings and Examples are for the present invention is described, not for limiting the scope of the invention.After reading the present invention, as the present invention is made various changes or modifications, all belong to change or modification of equal value, be included in equally in the scope of the application's appended claims restriction.
Accompanying drawing explanation
Fig. 1 is flash tank structural representation, in figure: housing 1, except drop device 2, water side heat transfer substrate 3, water side side strip of paper used for sealing 4, vapour side heat transfer substrate 5, the longitudinal spacing bar 6 of water side, cooling water runner 7, vapour phase runner 8, journey spacer bar 9, dividing plate 10, central tube 11, water side end strip of paper used for sealing 12, upper cover 13, fixed gas outlet 14, safety valve connecting pipe 15, nozzle for pressure gauge 16, nozzle for thermometer 17, cooling nozzle takes over 18, the horizontal spacing bar 19 of water side, coolant outlet takes over 20, steam inlet pipe 21, blow-off pipe 22, solidifying water outlet pipe 23, low head 24, level instrumentation nozzle 25.
Flash tank belongs to pressure vessel, by housing, upper low head, segregator, except drop device, steam inlet pipe, fixed gas outlet, solidifying water outlet pipe, blow-off pipe, cooling water outlet and inlet is taken over, safety valve, pressure gauge, thermometer, liquid level gauge, support and heat-insulation layer form, it is characterized in that: in flash tank, be provided with segregator and remove drop device, described segregator is a spiral heat exchanger, cooling water is walked spiral road, for round trip, gas phase is walked vertical straight way, for one way, another application " low mass dryness fraction of its structure and applicant, repeatedly arrange, evaporation (L.M.D method) dedicated hot water solution reaction kettle " heating core similar, difference, one is heating, one is cooling, other two runners are wide also different, therefore without repeating, described except drop device be the grid packing that a kind of runner is bending.
The specific embodiment
The steam discharge being come by pyrohydrolysis reactor enters flash tank through steam inlet pipe 21, and due to the exhaust steam pressure of pressure lower than pyrohydrolysis reactor, so there is immediately flash distillation, the mass dryness fraction of two-phase mixture depends on flashing pressure, and flashing pressure is larger, and mass dryness fraction is lower.The liquid product of flash distillation falls within the bottom of flash tank, the liquid level showing according to liquid level gauge will coagulate water row from solidifying water outlet pipe 23, the gaseous products of flash distillation rises, through removing after the drop of deentrainment except drop device 2, rise in segregator, most water vapour congeal into bottom of liquid water droplets backflash steaming pot of water-cooled that is cooled, little part water vapour and fixed gas are by the outer row of fixed gas outlet 14.Flashing pressure can regulate and control by the intensity of cooling of segregator.Row's solidifying water from solidifying water outlet pipe 23, temperature, up to more than 200 ℃, can be sent to heat reclamation device, and the heat of recovery is personal, outer confession or cogeneration.
Useful putting really
In flash tank, be provided with segregator and remove drop device, can meet the specific (special) requirements of the new technology > > patent of a < < sludge hot hydrolysis-desiccation integral, intensity of cooling by regulation and control segregator regulates and controls flashing pressure, and then the object of the low mass dryness fraction of regulation and control steam discharge.
Claims (3)
1. with segregator with except the flash tank of drop device, belonging to pressure vessel, is by housing, upper low head, segregator, except drop device, steam inlet pipe, fixed gas outlet, solidifying water outlet pipe, blow-off pipe, cooling water outlet and inlet is taken over, safety valve, pressure gauge, thermometer, liquid level gauge, support and heat-insulation layer form, and it is characterized in that: in flash tank, be provided with segregator and remove drop device.
2. according to claim 1 a kind ofly it is characterized in that: described segregator is a spiral heat exchanger, and cooling water is walked spiral road with segregator with except the flash tank of drop device, is round trip, and gas phase is walked vertical straight way, is one way.
3. according to claim 1 a kind of with segregator with except the flash tank of drop device, it is characterized in that: described except drop device be the grid packing that a kind of runner is bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266350.3A CN103566609A (en) | 2012-07-21 | 2012-07-21 | Flash tank provided with fractional condenser and liquid drop removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266350.3A CN103566609A (en) | 2012-07-21 | 2012-07-21 | Flash tank provided with fractional condenser and liquid drop removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103566609A true CN103566609A (en) | 2014-02-12 |
Family
ID=50039853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210266350.3A Pending CN103566609A (en) | 2012-07-21 | 2012-07-21 | Flash tank provided with fractional condenser and liquid drop removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103566609A (en) |
-
2012
- 2012-07-21 CN CN201210266350.3A patent/CN103566609A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |