CN202822823U - Flash tank provided with fractional condenser and liquid drop removal device - Google Patents
Flash tank provided with fractional condenser and liquid drop removal device Download PDFInfo
- Publication number
- CN202822823U CN202822823U CN 201220370721 CN201220370721U CN202822823U CN 202822823 U CN202822823 U CN 202822823U CN 201220370721 CN201220370721 CN 201220370721 CN 201220370721 U CN201220370721 U CN 201220370721U CN 202822823 U CN202822823 U CN 202822823U
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- CN
- China
- Prior art keywords
- flash tank
- removal device
- fractional condenser
- liquid drop
- segregator
- 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
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- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a flash tank provided with a fractional condenser and a liquid drop removal device, and belongs to pressure vessels. The flash tank is special for a utility model 'a sludge pyrohydrolysis and drying integral novel process' applied by the applicant. The flash tank provided with the fractional condenser and the liquid drop removal device comprises a shell body, an upper end socket, a lower end socket, the fractional condenser, the liquid drop removal 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 removal 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 removal 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 utility model 'a sludge pyrohydrolysis and drying integral novel process', 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 utility model relates to a kind of being specifically designed to by the special-purpose flash tank of " a kind of new technology of sludge hot hydrolysis-desiccation integral " patent of applicant's invention.
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 the 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 purpose is to make fluid rapidly boiling vaporization in flash tank, when obtaining a large amount of steam, reduces liquidus temperature, and makes two to be separated.The effect of flash tank provides the space of the rapid vaporization 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 the Thermal Power Station, expansion drying, desalinization, flash distillation enrichment and compression refrigeration circulation behind the milk pasteurization.
Summary of the invention
Different with known flash distillation purpose, be exclusively used in the present invention of " a kind of new technology of sludge hot hydrolysis-desiccation integral ", do not pursue the maximization of steam state product, pursuit be the maximization of liquid product, to adapt to the technological requirement of " low mass dryness fraction ".For this reason, this flash tank is by housing, upper low head, segregator, except the drop device, steam inlet pipe, the 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 belongs to pressure vessel, it is characterized in that: in flash tank, be provided with segregator and remove the drop device, described segregator is a spiral heat exchanger, and cooling water is walked the spiral road, is round trip, gas phase is walked vertical straight way, be one way, the heating core of another application of its structure and applicant " low mass dryness fraction; repeatedly arrange; evaporation (L.M.D method) dedicated hot water solution reaction kettle " is similar, difference, the latter is heating, the present invention is cooling, and other two runners are wide also different, so need not to give unnecessary details.Described except the drop device be the grid packing that a kind of runner is bending.For making the maximization of liquid product, 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 the 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 what and the moisture content of raw sludge and the finished product moisture content of setting can calculate by theory and predict.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 utility model will be further described.
Should illustrate that described drawings and Examples are that the present invention is described, be not be used to 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 application's appended claims restricted portion.
Description of drawings
Fig. 1 is the flash tank structural representation, among the 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 vertical spacing bar of water side (6), 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 is taken over (18), the horizontal spacing bar of water side (19), coolant outlet is taken over (20), steam inlet pipe (21), blow-off pipe (22), solidifying water outlet pipe (23), low head (24), level instrumentation nozzle (25).
The specific embodiment
The steam discharge that is come by the pyrohydrolysis reactor enters flash tank through steam inlet pipe (21), because pressure is lower than the exhaust steam pressure of pyrohydrolysis reactor, so flash distillation occurs immediately, 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 that shows according to liquid level gauge will coagulate water and efflux from solidifying water outlet pipe (23), the gaseous products of flash distillation rises, after removing the drop of deentrainment except drop device (2), rise in the segregator, most water vapour water-cooled liquid water droplets of congealing into that is cooled is gone back to the bottom of flash tank, and little part water vapour and fixed gas are effluxed by fixed gas outlet (14).Flashing pressure can be regulated and control with the intensity of cooling of segregator.From the solidifying water that solidifying water outlet pipe (23) effluxes, temperature can be sent to heat reclamation device up to more than 200 ℃, and the heat of recovery is personal, outer confession or cogeneration.
Useful putting really
In flash tank, be provided with segregator and except the drop device, can satisfy the specific (special) requirements of " a kind of new technology of sludge hot hydrolysis-desiccation integral " patent, regulate and control flashing pressure by the intensity of cooling of regulation and control segregator, and then the purpose of the low mass dryness fraction of regulation and control steam discharge.
Claims (3)
1. one kind with segregator with except the flash tank of drop device, belongs to pressure vessel, is by housing, upper low head, segregator is except the 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: be provided with segregator and remove the drop device in flash tank.
2. according to claim 1 a kind of with segregator with except the flash tank of drop device, it is characterized in that: described segregator is a spiral heat exchanger, and cooling water is walked the spiral road, 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 the drop device be the grid packing that a kind of runner is bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370721 CN202822823U (en) | 2012-07-21 | 2012-07-21 | Flash tank provided with fractional condenser and liquid drop removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370721 CN202822823U (en) | 2012-07-21 | 2012-07-21 | Flash tank provided with fractional condenser and liquid drop removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202822823U true CN202822823U (en) | 2013-03-27 |
Family
ID=47934626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370721 Expired - Fee Related CN202822823U (en) | 2012-07-21 | 2012-07-21 | Flash tank provided with fractional condenser and liquid drop removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202822823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256585A (en) * | 2013-05-10 | 2013-08-21 | 淮安华电环保机械制造有限公司 | Novel waste heat boiler |
-
2012
- 2012-07-21 CN CN 201220370721 patent/CN202822823U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256585A (en) * | 2013-05-10 | 2013-08-21 | 淮安华电环保机械制造有限公司 | Novel waste heat boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130721 |