CN206127237U - Gaseous low temperature freeze -drying dewatering device - Google Patents
Gaseous low temperature freeze -drying dewatering device Download PDFInfo
- Publication number
- CN206127237U CN206127237U CN201621105343.5U CN201621105343U CN206127237U CN 206127237 U CN206127237 U CN 206127237U CN 201621105343 U CN201621105343 U CN 201621105343U CN 206127237 U CN206127237 U CN 206127237U
- Authority
- CN
- China
- Prior art keywords
- low
- temperature
- freeze drying
- dehydrator
- refrigerating medium
- 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.)
- Active
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a gaseous low temperature freeze -drying dewatering device, include the whirlwind dirt separator that is used for getting rid of impurity and open fire that links to each other with pending natural gas input pipeline, first low temperature freeze -drying dehydrator, second low temperature freeze -drying dehydrator, low temperature cooling water set, vapour and liquid separator, heavy hydrocarbon reservoir, water reservoir with fixed attention, low temperature secondary refrigerant pump and ice -melt secondary refrigerant pump. The utility model discloses need consequently need not separate hydrate inhibitor and water to adding hydrate inhibitor in the natural gas, the equipment (like splitters such as rectifying column or distillation columns) that does not just also need hydrate inhibitor and water to go on to separate reaches that simplification flow, easy operation, working costs are hanged down, no hydrate inhibitor consumption, pollution abatement, the complete purpose of separation.
Description
Technical field
This utility model is related to gas drying processing technology field, more particularly to a kind of natural gas in low temperature lyophilizing dewatering process
And its device.
Background technology
When requiring that gas dewpoint is less than less than 0 DEG C, will freeze during using low temperature dewatering method, it is particularly natural
Hydrate can also be generated when gas is below 0 DEG C of the dewpoint requirements to cause line clogging, even cause superpressure, have a strong impact on equipment and pipe
Road safety and personal safety；Therefore, during to the low temperature dewatering method of the direct cooling of gas to gas dewatering, it is only suitable for more than 0 DEG C of dew
Point temperature.
Country's gas is higher than more than 0 DEG C using low temperature process dehydration temperaturre at present, is otherwise accomplished by adding hydrate inhibitor.
The method of gas dehydration is according to People's Republic of China's petroleum gas standard SY/T0076-2008《Gas dehydration is designed
Specification》Regulation carry out.Standard specifies that the principle of natural gas in low temperature method dehydration is：1st, inject hydrate into natural gas to suppress
Agent；2nd, the vapor in cooling condensed natural gas is carried out to natural gas；3rd, gas and hydrate inhibitor solution are separated；4th, separate
Hydrate inhibitor and condensate.
Just because of hydrate inhibitor is added, increased add water into natural gas compound inhibitors and to hydrate press down
Preparation carries out detached operation with condensate, as hydrate inhibitor and water are liquid, it is more difficult to separate, it is therefore desirable to adopt
The way of distillation or rectification method are separated, and are brought and are had a disadvantage that：1st, consumed energy；2nd, hydrate inhibitor can not possibly be kept completely separate
Out, the hydrate inhibitor of part is taken away by gas, not only polluted natural gas but also caused hydrate inhibitor to lose；3rd, flow process
Complexity, increased operating cost.
The utility model of Patent No. 201210102739.4 discloses a kind of compressed-air drier, including compressor,
One end of compressor is connected with one end of condenser by pipeline, and the other end of condenser is by pipeline and the one of device for drying and filtering
End is connected, and the other end of device for drying and filtering is connected with one end of expansion valve by pipeline, the other end of compressor pass through pipeline and
Vaporizer one end is connected, and the other end of vaporizer is connected with the other end of expansion valve by pipeline, and the one end near vaporizer sets
There is expansion valve sensor, expansion valve sensor is connected with expansion valve, and air inlet and air outlet are provided with vaporizer, and air outlet sets
The bottom for having liquid-level switch, vaporizer is connected with outlet pipe, and outlet pipe is provided with electromagnetic valve.Although the utility model proposes and passes through
Temperature under operating pressure reaches dew point temperature and out, reaches dry purpose so as to by the steam coagulation in air.But
It is only applicable to gas of the dewpoint requirements more than 0 DEG C, does not apply to dew point temperature and requires the gas less than less than 0 DEG C.It is more uncomfortable
For natural gas, because when dew point temperature is less than 0 DEG C, water can freeze, damage equipment and pipeline.Also exist in natural gas certain
Heavy hydrocarbon, directly cooling can generate hydrate, blocking pipeline and equipment, bring potential safety hazard.
Utility model content
The purpose of this utility model is to change the compound inhibitors low temperature dewatering that adds water into natural gas for being used at present
Complicated technology, saves energy consumption, and will not bring hydrate inhibitor consumption and pollution natural gas, simplify dewatering process flow, reduce fortune
Row expense.Technology path is that vapor contained in natural gas is directly frozen into solid ice to be attached to heat exchanger in cryoprobe
On fin, the part gaseous state heavy hydrocarbon liquefaction in natural gas flows into heavy hydrocarbon storage tank for liquid heavy hydrocarbon, and natural gas becomes dry natural gas
Gaseous state is exported；Separating technology is changed to into the separation of solid ice, liquid heavy hydrocarbon and gaseous natural gas, separating technology is greatly simplified.
To realize that the purpose this utility model is adopted the technical scheme that：
This natural gas in low temperature lyophilizing dehydration device, including being connected with pending natural gas input channel for removing
The whirlwind dirt separator 1 of impurity and open fire, the first low-temperature freeze drying dehydrator 2, the second low-temperature freeze drying dehydrator 3, low-temperature cold water unit
4, gas-liquid separator 5, heavy hydrocarbon reservoir 6 coagulate water reservoir 7；Low temperature coolant pump 10 and ice-melt coolant pump 10 '.Described
Imported gas 21,31 are set on the housing of the first low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3, and natural gas goes out
Mouth 22,32, heavy hydrocarbon and condensation water out 23,33, the freezing of the first low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
Heat exchanger device core 100 is set in 200 housing of device, regenerator device core 100 ', described low-temperature freeze drying dehydration are set in regenerator
Refrigerating medium import 1202,1302 and refrigerating medium outlet 1201,1301 are set on device heat exchanger device core 100；Described regenerator device
Arrange refrigerating medium import 1201 ', 1301 ' and the low-temperature cold water unit 4 described in refrigerating medium outlet 1202 ', 1302 ' to wrap on core 100 '
Include waste-heat recoverer 41, vaporizer 42, condenser 43；Whirlwind dirt separator 1 and the first low-temperature freeze drying dehydrator 2 and the second low-temperature frozen
The Imported gas 21,31 of dry dehydrator 3 are connected by electromagnetic valve 8, and gas outlet 22,32 passes through electromagnetic valve 8 and gas-liquid
The air inlet of separator 5 is connected, and the gas outlet of gas-liquid separator 5 is connected with the natural gas output channel after process；Heavy hydrocarbon and solidifying
Bear water outlet 23,33 to be connected with the inlet of heavy hydrocarbon reservoir 6 and solidifying water reservoir 7 by electromagnetic valve 8 respectively；
The import 1202 of heat exchanger core 100 and the import 1302 of the second low-temperature freeze drying dehydrator heat exchanger core 100 sealing are worn
Cross after the housing of the first low-temperature freeze drying dehydrator 2 or the second low-temperature freeze drying dehydrator 3 by electromagnetic valve 8 respectively with low temperature refrigerating medium
The outlet 1401 of pump 10 is connected with the outlet 1501 of ice-melt coolant pump 10 '；The refrigerating medium outlet arranged on heat exchanger core
1201st, after the housing of 1301 the first low-temperature freeze drying of hermetically passing dehydrators 2 or the second low-temperature freeze drying dehydrator 3 respectively with regenerator
The import 1201 ', 1301 ' of device core 100 ' is connected；1202 ', 1302 ' hermetically passing first of outlet of regenerator device core 100 ' is low
Pass through electromagnetic valve 8, refrigerating medium respectively with vaporizer 42 after the housing of warm lyophilizing dehydrator 2 or the second low-temperature freeze drying dehydrator 3
The import 1502 of 1402 waste-heat recoverer 41 of import is connected.1503,1403 points of the outlet of waste-heat recoverer 41 and vaporizer 42
It is not connected with the import 1504 of molten ice coolant pump 10 ' and the import 1404 of low temperature refrigerating medium water pump 10.
Further, the first described low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3 are by the cold of left-half
The regenerator 210,310 for freezing device 200,300 and right half part is constituted, and heat exchanger device core is arranged in the housing of cryoprobe 200,300
100, regenerator device core 100 ' is set in the housing of regenerator 210,310, refrigerating medium import is set on heat exchanger device core 100
1202nd, 1302 and refrigerating medium outlet 1201,1301；Refrigerating medium import 1201 ', 1301 ' is set on regenerator device core 100 ' and is carried
Cryogen outlet 1202 ', 1302 '；Refrigerating medium import 1202,1302 hermetically passing left-halfs are set on heat exchanger device core 100
By outlet 1401 and the ice-melt coolant pump 10 ' of electromagnetic valve 8 and low temperature refrigerating medium water pump 10 after the housing of cryoprobe 200,300
Outlet 1501 be connected；Refrigerating medium is set on heat exchanger device core 100 and exports the cold of 1201,1301 hermetically passing left-halfs
It is connected with the 100 ' import 1201 ' 1301 ' of regenerator device core after the housing for freezing device 200,300, arranges on regenerator device core 100 '
Refrigerating medium export the housing of 1202 ', 1302 ' hermetically passing right half part regenerators 210,310 after pass through electromagnetic valve 8 and waste heat
41 import 1502 of withdrawer is connected with 42 import 1402 of vaporizer.
Further, sewage draining exit is set below the first described low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
24th, 34, sewage draining exit 24,34 times setting stop valves 9；Liquidometer 61,71 is set on heavy hydrocarbon reservoir 6 and solidifying water reservoir 7.
Further, described a kind of natural gas in low temperature lyophilizing dewatering process, it is characterised in that the method for dehydration is by day
So in gas, contained vapor is directly frozen into（Solid-state）Ice is attached in cryoprobe on the fin of heat exchanger, in natural gas
Part gaseous state heavy hydrocarbon liquefaction flows into heavy hydrocarbon storage tank for liquid heavy hydrocarbon, and natural gas becomes dry natural gas（Gaseous state）Output；To separate
Technique is changed to the separation of solid ice, liquid heavy hydrocarbon and gaseous natural gas.
Further, described low-temperature cold water unit is Water cooling low temperature handpiece Water Chilling Units or air-cooled low-temperature cold water unit；Refrigeration
Agent makees cold-producing medium using freon, ammonia or propane；Compressor uses piston compressor, scroll compressor, screw-compression
Machine or centrifugal compressor；Low temperature refrigerating medium and high temperature refrigerating medium use the refrigerating medium of one species and same concentration, refrigerating medium
Using ethylene glycol or saline.
Further, low temperature refrigerating medium from vaporizer extract out it is pressurized after Jing electromagnetic valves enter into low-temperature freeze drying dehydrator
Mouthful, Jing low-temperature freeze dryinies dehydrator outlet after being heated in low-temperature freeze drying dehydrator enters regenerator refrigerating medium entrance, in backheat
In device, refrigerating medium is gone out the natural air cooling of low-temperature freeze drying dehydrator, reclaims the cold of natural gas, and after temperature is reduced, Jing is cut automatically
Change valve and return to low-temperature cold water unit vaporizer and lower the temperature again.
Further, by the measure of pressure reduction and temperature judging, when the first low-temperature freeze drying dehydrator icing amount reaches one
During definite value, the first low-temperature freeze drying dehydrator enters ice-melt separation water process, is frozen in the ice in low-temperature freeze drying dehydrator by ice-melt
Condensate storage tank is entered after low-temperature freeze drying dehydrator is discharged after refrigerating medium heating and melting；Second low-temperature freeze drying dehydrator is entered simultaneously
Low-temperature freeze drying dehydration, freezes the natural gas of the vapor production drying in natural gas；Recycled with this, continuous production is dry
Dry natural gas.
Further, described heat exchanger device core 100 and the 101 overcoat wing of copper pipe or stainless steel tube of regenerator device core 100 '
Piece 102 is made, and the spacing of deflection plate 103 is determined by actual gas flow, between two adjacent fins or fin and deflection plate
Spacing K>3mm.
Compared with prior art, the beneficial effects of the utility model are：
1st, hydrate inhibitor need not be added, does not result in the waste of hydrate inhibitor, it is to avoid hydrate suppression
Pollution of the agent to natural gas；
2nd, hydrate inhibitor and water need not be separated, process is simple, energy-conserving and environment-protective；
3rd, the heavy hydrocarbon being condensed can be isolated simultaneously
4th, due to be gaseous natural gas, solid water and liquid heavy hydrocarbon separation, process is simple can be easily separated.
Description of the drawings
In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right
Needed for specific embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of embodiment 2,3.
Fig. 2 is the structural representation of embodiment 1.
Fig. 3 is the structural representation of embodiment 2,3 first low-temperature freeze drying dehydrators or the second low-temperature freeze drying dehydrator.
Fig. 4 is the structural representation of 1 first low-temperature freeze drying dehydrator of embodiment or the second low-temperature freeze drying dehydrator.
Fig. 5 is the structural representation of embodiment 3.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of this utility model, rather than the embodiment of whole.Based on the embodiment in this utility model, this
The every other embodiment obtained under the premise of creative work is not made by field those of ordinary skill, belongs to practical
Novel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " is, based on orientation shown in the drawings or position relationship, to be only
For the ease of describe this utility model and simplify description, rather than indicate or imply indication device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection;Can be mechanically connected, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in this utility model.
Embodiment 1 is referring to accompanying drawing 2,4.
This example is pipeline gas implementation
Whole device includes that the whirlwind for going the removal of impurity and open fire being connected with pending natural gas input channel is removed
Dirty device 1, the first low-temperature freeze drying dehydrator 2, the second low-temperature freeze drying dehydrator 3, low-temperature cold water unit 4, gas-liquid separator 5, heavy hydrocarbon
Reservoir 6, coagulates water reservoir 7, low temperature coolant pump 10, ice-melt coolant pump 10 '；The first described low-temperature freeze drying dehydrator 2
With setting Imported gas 21,31, gas outlet 22,32, heavy hydrocarbon and condensate on the housing of the second low-temperature freeze drying dehydrator 3
Heat exchanger is set in 200 housing of cryoprobe of outlet 23,33, the first low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
Device core 100, in regenerator arranges regenerator device core 100 ', arranges on described low-temperature freeze drying dehydrator heat exchanger device core 100
Refrigerating medium import 1202,1302 and refrigerating medium outlet 1201,1301；Refrigerating medium import is set on described regenerator device core 100 '
1201 ', 1301 ' the low-temperature cold water units 4 exported described in 1202 ', 1302 ' with refrigerating medium include waste-heat recoverer 41, vaporizer
42nd, condenser 43；The Imported gas of whirlwind dirt separator 1 and the first low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
21st, 31 are connected by electromagnetic valve 8, and gas outlet 22,32 is connected with the air inlet of gas-liquid separator 5 by electromagnetic valve 8, gas
The gas outlet of liquid/gas separator 5 is connected with the natural gas output channel after process；Heavy hydrocarbon and condensation water out 23,33 pass through electromagnetic valve
8 are connected with the inlet of heavy hydrocarbon reservoir 6 and solidifying water reservoir 7 respectively；
The import 1202 of the first low-temperature freeze drying dehydrator heat exchanger core 100 and the second low-temperature freeze drying dehydrator heat exchanger core
Pass through electromagnetism after 100 1302 the first low-temperature freeze drying of hermetically passing dehydrator 2 of import or the housing of the second low-temperature freeze drying dehydrator 3
Valve 8 is connected with the outlet 1401 of low temperature coolant pump 10 and the outlet 1501 of ice-melt coolant pump 10 ' respectively；On heat exchanger core
The refrigerating medium of setting exports the shell of 1201,1301 the first low-temperature freeze drying of hermetically passing dehydrators 2 or the second low-temperature freeze drying dehydrator 3
It is connected with the import 1201 ', 1301 ' of regenerator device core 100 ' after body respectively；The outlet 1202 ' of regenerator device core 100 ',
By electromagnetic valve 8, difference after the housing of 1302 ' the first low-temperature freeze drying of hermetically passing dehydrators 2 or the second low-temperature freeze drying dehydrator 3
Import 1502 with 1402 waste-heat recoverer 41 of refrigerating medium import of vaporizer 42 is connected.Waste-heat recoverer 41 and vaporizer 42
Import 1504 and 1404 phase of import of low temperature refrigerating medium water pump 10 respectively with molten ice coolant pump 10 ' of outlet 1503,1403
Connection.
Sewage draining exit 24,34, row are set below the first described low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
Dirty mouth 24,34 times setting stop valves 9；Liquidometer 61,71 is set on heavy hydrocarbon reservoir 6 and solidifying water reservoir 7.
Described low-temperature cold water unit is Water cooling low temperature handpiece Water Chilling Units or air-cooled low-temperature cold water unit；Cold-producing medium is using fluorine profit
High, ammonia or propane make cold-producing medium；Compressor uses piston compressor, scroll compressor, screw compressor or centrifugal
Compressor；Low temperature refrigerating medium and high temperature refrigerating medium use the refrigerating medium of one species and same concentration, refrigerating medium to use ethylene glycol
Or saline.
Low temperature refrigerating medium extracts Jing out from vaporizer, and after the pressurization of low temperature coolant pump, Jing electromagnetic valves enter low-temperature freeze drying dehydrator
Entrance, Jing low-temperature freeze dryinies dehydrator outlet after being heated in low-temperature freeze drying dehydrator are being returned into regenerator refrigerating medium entrance
In hot device, refrigerating medium is gone out the natural air cooling of low-temperature freeze drying dehydrator, reclaims the cold of natural gas, and after temperature is reduced, Jing is automatic
Switching valve returns to low-temperature cold water unit vaporizer and lowers the temperature again.
Judged by the measure of pressure reduction and temperature, when the first low-temperature freeze drying dehydrator icing amount reaches certain value, the
One low-temperature freeze drying dehydrator enters ice-melt separation water process, and the ice being frozen in low-temperature freeze drying dehydrator is heated by ice-melt refrigerating medium
Condensate storage tank is entered after low-temperature freeze drying dehydrator is discharged after thawing；Second low-temperature freeze drying dehydrator is de- into low-temperature freeze drying simultaneously
Water process, freezes the natural gas of the vapor production drying in natural gas；Recycled with this, continuously produce dry natural gas.
Described heat exchanger device core 100 is made with copper pipe or 101 overcoat fin 102 of stainless steel tube, the spacing of deflection plate 103
Determine by actual gas flow, spacing K between two adjacent fins or fin and deflection plate>3mm.
Specifically technical process is：
1st, natural gas goes the removal of impurity and open fire through whirlwind dirt separator, prevents dirt from entering device；
2nd, whirlwind dirt separator outlet Jing automatic switchovers valve accesses low-temperature freeze drying dehydrator import, in low-temperature freeze drying dehydrator
The contained direct glaciation of vapor is bonded in low-temperature freeze drying and is taken off by the middle dew point temperature that requirement is cooled to by low temperature refrigerating medium
On hydrophone, part heavy hydrocarbon is condensed into liquid heavy hydrocarbon, and natural gas is gaseous state, the solid ice of three kinds of states, liquid heavy hydrocarbon and gaseous state
Natural gas natural separation, heavy hydrocarbon flow into heavy hydrocarbon storage tank, export the natural gas of cold drying.Condensate is flowed into during ice-melt after ice-out
Storage tank, reaches the purpose of gas dehydration.Low-temperature freeze drying dehydrator import and export is provided with pressure gauge, temperature probe and humidity and measures
Amount imports and exports state parameter, and is provided with automatic valve.
3rd, natural gas goes out low-temperature freeze drying dehydrator through gas-liquid separator, isolate residual droplets transfer out drying it is natural
Gas.
4th, the low-temperature cold water unit that the cooling of low temperature refrigerating medium is used can be Water cooling low temperature handpiece Water Chilling Units or air-cooled low temperature cold
Water dispenser group；Cold-producing medium can make cold-producing medium using freon, ammonia or propane；Compressor can be using piston compressor, vortex
Formula compressor, screw compressor or centrifugal compressor.Low temperature refrigerating medium and molten white refrigerating medium use one species and same
The refrigerating medium of concentration, refrigerating medium can use ethylene glycol or saline.
5th, low temperature refrigerating medium circulation
Low temperature refrigerating medium is extracted Jing low temperature coolant pump pressurization Jing automatic transfer valves out from low-temperature cold water unit vaporizer and is entered
Low-temperature freeze drying dehydrator heat exchanger device core entrance, is heated Jing low-temperature freeze dryinies dehydration after temperature is raised in low-temperature freeze drying dehydrator
The outlet of device heat exchanger device core accesses corresponding regenerator entrance, reclaims the cold of natural gas, and after temperature is reduced, Jing regenerators are exported
Jing automatic transfer valves return to low-temperature cold water unit vaporizer and lower the temperature again.
6th, low-temperature freeze drying dehydrator arranges two groups, when the first low-temperature freeze drying dehydrator icing amount reaches certain value by pressure
Judging, the first low-temperature freeze drying dehydrator enters ice-melt separation water process to the measure of difference and temperature, is frozen in low-temperature freeze drying dehydration
Ice on device is discharged after ice-melt refrigerating medium heating and melting enter after low-temperature freeze drying dehydrator condensate storage tank；While the second low temperature
Lyophilizing dehydrator enters low-temperature freeze drying dehydration, freezes the natural gas of the vapor production drying in natural gas.Circulated with this
Use, continuously produce dry natural gas.
7th, the ice-melt refrigerating medium of low-temperature freeze drying dehydrator provides heat by the waste-heat recoverer of low-temperature cold water unit and which is added
Heat, ice-melt refrigerating medium reclaim compressor air-discharging waste heat and are heated to 40-50 DEG C through waste-heat recoverer, used as heating ice-melt
Thermal source.Which is heated up into low-temperature freeze drying dehydrator by ice-melt coolant pump pressurization Jing automatic transfer valves during ice-melt, melt low temperature
The icing of lyophilizing dehydrator, saves energy consumption.
8th, ice-melt refrigerating medium circulation：
Ice-melt refrigerating medium is extracted out from low-temperature cold water unit waste-heat recoverer, Jing ice-melts coolant pump pressurization Jing automatic transfer valves
Into low-temperature freeze drying dehydrator heat exchanger device core entrance, the temperature that is cooled in low-temperature freeze drying dehydrator is reduced, and melts natural gas
Jing low-temperature freeze dryinies dehydrator heat exchanger core outlet after the icing of side accesses corresponding regenerator entrance, to going out back after regenerator heating
Hot device outlet Jing automatic transfer valves return to low-temperature cold water unit waste-heat recoverer and are heated up again.
9th, the working condition for switching low-temperature freeze drying dehydrator automatically controls each low temperature refrigerating medium and ice-melt refrigerating medium by PKC
Automatic running is realized with low-temperature freeze drying dehydrator switch valve, when low-temperature freeze drying dehydrator is in ice-melt working condition, while
Close the outlet valve of the low-temperature freeze drying dehydrator gas.When low-temperature freeze drying dehydrator is in lyophilizing dewatering work state, together
The outlet valve of the Shi Kaiqi low-temperature freeze drying dehydrator gases.
Embodiment 2, referring to accompanying drawing 1,3.
This example is natural gas liquefaction plant's implementation.
The other the same as in Example 1, except for the difference that the first described low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
Only the cryoprobe 200,300 of left-half, does not have the regenerator 210,310 of right half part, in the housing of cryoprobe 200,300
Heat exchanger device core 100 is set, refrigerating medium import 201,301 and refrigerating medium outlet 202,302 are set on heat exchanger device core 100；
Refrigerating medium import 201 is set on heat exchanger device core 100, is led to after the housing of the cryoprobe 200,300 of 301 hermetically passing left-halfs
Cross electromagnetic valve 8 to be connected with the outlet 1401 of low temperature refrigerating medium water pump 10 and the outlet 1501 of ice-melt coolant pump 10 '；Heat exchange
Arrange on device device core 100 after refrigerating medium exports the cryoprobe 200 of 202,302 hermetically passing left-halfs, 300 housings and pass through electromagnetism
Valve 8 is connected with 41 import 1502 of waste-heat recoverer and 42 import 1402 of vaporizer.
Specifically technical process is：
1st, natural gas goes the removal of impurity and open fire through whirlwind dirt separator, prevents dirt from entering device；
2nd, whirlwind dirt separator outlet Jing automatic switchovers valve accesses low-temperature freeze drying dehydrator import, in low-temperature freeze drying dehydrator
The contained direct glaciation of vapor is bonded in low-temperature freeze drying and is taken off by the middle dew point temperature that requirement is cooled to by low temperature refrigerating medium
On hydrophone, part heavy hydrocarbon is condensed into liquid heavy hydrocarbon, and natural gas is gaseous state, the solid ice of three kinds of states, liquid heavy hydrocarbon and gaseous state
Natural gas natural separation, heavy hydrocarbon flow into heavy hydrocarbon storage tank, export the natural gas of cold drying.Condensate is flowed into during ice-melt after ice-out
Storage tank, reaches the purpose of gas dehydration.Low-temperature freeze drying dehydrator import and export is provided with pressure gauge, temperature probe and humidity and measures
Amount imports and exports state parameter, and is provided with automatic valve.
3rd, natural gas goes out low-temperature freeze drying dehydrator through gas-liquid separator, isolates residual droplets and transfers out cold drying day
Right gas.
4th, the low-temperature cold water unit that the cooling of low temperature refrigerating medium is used can be Water cooling low temperature handpiece Water Chilling Units or air-cooled low temperature cold
Water dispenser group；Cold-producing medium can make cold-producing medium using freon, ammonia or propane；Compressor can be using piston compressor, vortex
Formula compressor, screw compressor or centrifugal compressor.Low temperature refrigerating medium and molten white refrigerating medium use one species and same
The refrigerating medium of concentration, refrigerating medium can use ethylene glycol or saline.
5th, low temperature refrigerating medium circulation
Low temperature refrigerating medium is extracted Jing low temperature coolant pump pressurization Jing automatic transfer valves out from low-temperature cold water unit vaporizer and is entered
Low-temperature freeze drying dehydrator heat exchanger device core entrance, is heated in low-temperature freeze drying dehydrator, and after temperature is raised, Jing low-temperature freeze dryinies take off
Hydrophone heat exchanger device core outlet Jing automatic transfer valves return to low-temperature cold water unit vaporizer and lower the temperature again.
6th, low-temperature freeze drying dehydrator arranges two groups, when the first low-temperature freeze drying dehydrator icing amount reaches certain value by pressure
Judging, the first low-temperature freeze drying dehydrator enters ice-melt separation water process to the measure of difference and temperature, is frozen in low-temperature freeze drying dehydration
Ice on device is discharged after ice-melt refrigerating medium heating and melting enter after low-temperature freeze drying dehydrator condensate storage tank；While the second low temperature
Lyophilizing dehydrator enters low-temperature freeze drying dehydration, freezes the natural gas of the vapor production drying in natural gas.Circulated with this
Use, continuously produce dry natural gas.
7th, the ice-melt refrigerating medium of low-temperature freeze drying dehydrator provides heat by the waste-heat recoverer of low-temperature cold water unit and which is added
Heat, ice-melt refrigerating medium reclaim compressor air-discharging waste heat and are heated to 40-50 DEG C through waste-heat recoverer, used as heating ice-melt
Thermal source.Which is heated up into low-temperature freeze drying dehydrator by ice-melt coolant pump pressurization Jing automatic transfer valves during ice-melt, melt low temperature
The icing of lyophilizing dehydrator, saves energy consumption.
8th, ice-melt refrigerating medium circulation：
Ice-melt refrigerating medium is extracted out from low-temperature cold water unit waste-heat recoverer, Jing ice-melts coolant pump pressurization Jing automatic transfer valves
Into low-temperature freeze drying dehydrator heat exchanger device core entrance, the temperature that is cooled in low-temperature freeze drying dehydrator is reduced, and melts natural gas
After the icing of side, Jing low-temperature freeze dryinies dehydrator heat exchanger core outlet Jing automatic transfer valves return to low-temperature cold water unit waste-heat recoverer
Heated up again.
9th, the working condition for switching low-temperature freeze drying dehydrator automatically controls each low temperature refrigerating medium and ice-melt refrigerating medium by PKC
Automatic running is realized with low-temperature freeze drying dehydrator switch valve, when low-temperature freeze drying dehydrator is in ice-melt working condition, while
Close the outlet valve of the low-temperature freeze drying dehydrator gas.When low-temperature freeze drying dehydrator is in lyophilizing dewatering work state, together
The outlet valve of the Shi Kaiqi low-temperature freeze drying dehydrator gases.
Embodiment 3, referring to accompanying drawing 3,5.
This example is that compressed air is dehydrated implementation.
The other the same as in Example 1, except for the difference that the first described low-temperature freeze drying dehydrator 2 and the second low-temperature freeze drying dehydrator 3
Only the cryoprobe 200,300 of left-half, does not have the regenerator 210,310 of right half part, in the housing of cryoprobe 200,300
Heat exchanger device core 100 is set, refrigerating medium import 201,301 and refrigerating medium outlet 202,302 are set on heat exchanger device core 100；
Refrigerating medium import 201 is set on heat exchanger device core 100, is led to after the housing of the cryoprobe 200,300 of 301 hermetically passing left-halfs
Cross electromagnetic valve 8 to be connected with the outlet 1401 of low temperature refrigerating medium water pump 10 and the outlet 1501 of ice-melt coolant pump 10 '；Heat exchange
Arrange on device device core 100 after refrigerating medium exports the cryoprobe 200 of 202,302 hermetically passing left-halfs, 300 housings and pass through electromagnetism
Valve 8 is connected with 41 import 1502 of waste-heat recoverer and 42 import 1402 of vaporizer.
Specifically technical process is：
1st, compressed air Jing automatic switchover valve accesses low-temperature freeze drying dehydrator import, low in low-temperature freeze drying dehydrator
Warm refrigerating medium is cooled to the dew point temperature of requirement, and the contained direct glaciation of vapor is bonded in low-temperature freeze drying dehydrator
On, export the compressed air of cold drying.Discharge after ice-out during ice-melt, reach the purpose of compressed air dehydration.Low-temperature freeze drying
Dehydrator import and export is provided with the measurement of pressure gauge, temperature probe and drimeter and imports and exports state parameter, and is provided with automatic valve.
2nd, compressed air goes out low-temperature freeze drying dehydrator through gas-liquid separator, isolates residual droplets and transfers out cold drying
Compressed air.
3rd, the low-temperature cold water unit that the cooling of low temperature refrigerating medium is used can be Water cooling low temperature handpiece Water Chilling Units or air-cooled low temperature cold
Water dispenser group；Cold-producing medium can make cold-producing medium using freon, ammonia or propane；Compressor can be using piston compressor, vortex
Formula compressor, screw compressor or centrifugal compressor.Low temperature refrigerating medium and high temperature refrigerating medium use one species and same
The refrigerating medium of concentration, refrigerating medium can use ethylene glycol or saline.
4th, the low-temperature cold water unit that the cooling of low temperature refrigerating medium is used can be Water cooling low temperature handpiece Water Chilling Units or air-cooled low temperature cold
Water dispenser group；Cold-producing medium can make cold-producing medium using freon, ammonia or propane；Compressor can be using piston compressor, vortex
Formula compressor, screw compressor or centrifugal compressor.
5th, low temperature refrigerating medium circulation
Low temperature refrigerating medium is extracted Jing low temperature coolant pump pressurization Jing automatic transfer valves out from low-temperature cold water unit vaporizer and is entered
Low-temperature freeze drying dehydrator heat exchanger device core entrance, is heated Jing low-temperature freeze dryinies dehydration after temperature is raised in low-temperature freeze drying dehydrator
Device heat exchanger device core outlet Jing automatic transfer valves return to low-temperature cold water unit vaporizer and lower the temperature again.
6th, low-temperature freeze drying dehydrator arranges two groups, when the first low-temperature freeze drying dehydrator icing amount reaches certain value by pressure
Judging, the first low-temperature freeze drying dehydrator enters ice-melt separation water process to the measure of difference and temperature, is frozen in low-temperature freeze drying dehydration
Ice on device is discharged low-temperature freeze drying dehydrator after ice-melt refrigerating medium heating and melting；Second low-temperature freeze drying dehydrator enters low simultaneously
Warm lyophilizing dehydration, freezes the air of the vapor production drying in natural gas.Recycled with this, continuous production is dried empty
Gas.
7th, the ice-melt refrigerating medium of low-temperature freeze drying dehydrator provides heat by the waste-heat recoverer of low-temperature cold water unit and which is added
Heat, ice-melt refrigerating medium reclaim compressor air-discharging waste heat and are heated to 40-50 DEG C through waste-heat recoverer, used as heating ice-melt
Thermal source.Which is heated up into low-temperature freeze drying dehydrator by ice-melt coolant pump pressurization Jing automatic transfer valves during ice-melt, melt low temperature
The icing of lyophilizing dehydrator, saves energy consumption.
8th, ice-melt refrigerating medium circulation：
Ice-melt refrigerating medium is extracted out from low-temperature cold water unit waste-heat recoverer, Jing ice-melts coolant pump pressurization Jing automatic transfer valves
Into low-temperature freeze drying dehydrator heat exchanger device core entrance, the temperature that is cooled in low-temperature freeze drying dehydrator is reduced, and melts natural gas
After the icing of side, Jing low-temperature freeze dryinies dehydrator heat exchanger device core outlet Jing automatic transfer valves return to low-temperature cold water unit waste heat recovery
Device is heated up again.
9th, the working condition for switching low-temperature freeze drying dehydrator automatically controls each low temperature refrigerating medium and ice-melt refrigerating medium by PKC
Automatic running is realized with low-temperature freeze drying dehydrator switch valve, when low-temperature freeze drying dehydrator is in ice-melt working condition, while
Close the outlet valve of the low-temperature freeze drying dehydrator gas.When low-temperature freeze drying dehydrator is in lyophilizing dewatering work state, together
The outlet valve of the Shi Kaiqi low-temperature freeze drying dehydrator gases.
Claims (7)
1. a kind of natural gas in low temperature lyophilizing dehydration device, it is characterised in that include being connected with pending natural gas input channel
The whirlwind dirt separator for going the removal of impurity and open fire（1）, the first low-temperature freeze drying dehydrator（2）, the second low-temperature freeze drying dehydrator
（3）, low-temperature cold water unit（4）, gas-liquid separator（5）, heavy hydrocarbon reservoir（6）, coagulate water reservoir（7）, low temperature coolant pump 10,
Ice-melt coolant pump（10’）；The first described low-temperature freeze drying dehydrator（2）With the second low-temperature freeze drying dehydrator（3）Housing on
Imported gas are set（21、31）, gas outlet（22、32）, heavy hydrocarbon and condense water out（23、33）, the first low-temperature freeze drying
Dehydrator（2）With the second low-temperature freeze drying dehydrator（3）Cryoprobe（200）Heat exchanger device core is set in housing（100）, in backheat
Regenerator device core is set in device（100’）, described low-temperature freeze drying dehydrator heat exchanger device core（100）Upper setting refrigerating medium import
（1202,1302）Export with refrigerating medium（1201,1301）；Described regenerator device core（100’）Upper setting refrigerating medium import
（1201 ', 1301 '）Export with refrigerating medium（1202’,1302’）Described low-temperature cold water unit（4）Including waste-heat recoverer
（41）, vaporizer（42）, condenser（43）；Whirlwind dirt separator（1）With the first low-temperature freeze drying dehydrator（2）With the second low-temperature freeze drying
Dehydrator（3）Imported gas（21、31）By electromagnetic valve（8）It is connected, gas outlet（22、32）By electromagnetic valve
（8）With gas-liquid separator（5）Air inlet be connected, gas-liquid separator（5）Gas outlet with process after natural gas output channel
It is connected；Heavy hydrocarbon and condensation water out（23、33）By electromagnetic valve（8）Respectively with heavy hydrocarbon reservoir（6）With solidifying water reservoir（7）'s
Inlet is connected；
First low-temperature freeze drying dehydrator heat exchanger core（100）Import（1202）With the second low-temperature freeze drying dehydrator heat exchanger core
（100）Import（1302）Hermetically passing the first low-temperature freeze drying dehydrator（2）Or the second low-temperature freeze drying dehydrator（3）Housing after
By electromagnetic valve（8）Respectively with low temperature coolant pump（10）Outlet（1401）With ice-melt coolant pump（10’）Outlet
（1501）It is connected；The refrigerating medium outlet arranged on heat exchanger core（1201、1301）Hermetically passing the first low-temperature freeze drying dehydrator
（2）Or the second low-temperature freeze drying dehydrator（3）Housing after respectively with regenerator device core（100’）Import（1201’、1301’）Phase
Connection；Regenerator device core（100’）Outlet（1202’、1302’）Hermetically passing the first low-temperature freeze drying dehydrator（2）Or second is low
Warm lyophilizing dehydrator（3）Housing after pass through electromagnetic valve（8）, respectively with vaporizer（42）Refrigerating medium import（1402）Waste heat is returned
Receive device（41）Import（1502）It is connected；Waste-heat recoverer（41）And vaporizer（42）Outlet（1503、1403）Respectively with
Molten ice coolant pump（10’）Import（1504）With low temperature refrigerating medium water pump（10）Import（1404）It is connected.
2. a kind of natural gas in low temperature lyophilizing dehydration device according to claim 1, it is characterised in that the first described low temperature
Lyophilizing dehydrator（2）With the second low-temperature freeze drying dehydrator（3）By the cryoprobe of left-half（200、300）With returning for right half part
Hot device（210、310）Composition, cryoprobe（200、300）Housing in arrange heat exchanger device core（100）, regenerator（210、310）
Housing in arrange regenerator device core（100’）, heat exchanger device core（100）Upper setting refrigerating medium import（1202、1302）And refrigerating
Agent is exported（1201、1301）；Regenerator device core（100’）Upper setting refrigerating medium import（1201’、1301’）Export with refrigerating medium
（1202’、1302’）；Heat exchanger device core（100）Upper setting refrigerating medium import（1202、1302）Hermetically passing left-half it is cold
Freeze device（200、300）Housing after pass through electromagnetic valve（8）With low temperature refrigerating medium water pump（10）Outlet（1401）With ice-melt refrigerating
Agent pump（10’）Outlet（1501）It is connected；Heat exchanger device core（100）Upper setting refrigerating medium outlet（1201、1301）Sealing is worn
Cross the cryoprobe of left-half（200、300）Housing after with regenerator device core（100’）Import（1201’1301’）It is connected,
Regenerator device core（100’）The refrigerating medium outlet of upper setting（1202’、1302’）Hermetically passing right half part regenerator（210、
310）Housing after pass through electromagnetic valve（8）With waste-heat recoverer（41）Import（1502）And vaporizer（42）Import（1402）It is connected
Connect.
3. a kind of natural gas in low temperature lyophilizing dehydration device according to claim 1 and 2, it is characterised in that described first
Low-temperature freeze drying dehydrator（2）With the second low-temperature freeze drying dehydrator（3）Lower section arranges sewage draining exit（24、34）, sewage draining exit（24、34）Under
Stop valve is set（9）；Heavy hydrocarbon reservoir（6）With solidifying water reservoir（7）Upper setting liquidometer（61、71）.
4. a kind of natural gas in low temperature lyophilizing dehydration device according to claim 1, it is characterised in that described low-temperature cold water
Unit is Water cooling low temperature handpiece Water Chilling Units or air-cooled low-temperature cold water unit；Cold-producing medium makees cold-producing medium using freon, ammonia or propane；Pressure
Contracting machine uses piston compressor, scroll compressor, screw compressor or centrifugal compressor；Low temperature refrigerating medium and high temperature
Refrigerating medium uses the refrigerating medium of one species and same concentration, refrigerating medium to use ethylene glycol or saline.
5. a kind of natural gas in low temperature lyophilizing dehydration device according to claim 1, it is characterised in that low temperature refrigerating medium is from steaming
Send out device extract out it is pressurized after Jing electromagnetic valves enter low-temperature freeze drying dehydrator entrance, in low-temperature freeze drying dehydrator be heated after Jing it is low
Into regenerator refrigerating medium entrance, in regenerator, refrigerating medium is gone out the natural of low-temperature freeze drying dehydrator for warm lyophilizing dehydrator outlet
Air cooling, reclaims the cold of natural gas, and after temperature reduction, Jing automatic transfer valves return to low-temperature cold water unit vaporizer and lower the temperature again.
6. a kind of natural gas in low temperature lyophilizing dehydration device according to claim 1, it is characterised in that by pressure reduction and temperature
Measure judging ice condition, when the first low-temperature freeze drying dehydrator icing amount reaches certain value, the dehydration of the first low-temperature freeze drying
Device enters ice-melt separation water process, and the ice being frozen in low-temperature freeze drying dehydrator is discharged low temperature after ice-melt refrigerating medium heating and melting
Condensate storage tank is entered after lyophilizing dehydrator；Second low-temperature freeze drying dehydrator enters low-temperature freeze drying dehydration simultaneously, freezes day
So the vapor in gas produces dry natural gas；Recycled with this, continuously produce dry natural gas.
7. a kind of natural gas in low temperature lyophilizing dehydration device according to claim 1, it is characterised in that described heat exchanger device
Core（100）With copper pipe or stainless steel tube（101）Overcoat fin（102）Make, deflection plate（103）Spacing by actual gas stream
Amount determination, the spacing between two adjacent fins or fin and deflection plate（K）>3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105343.5U CN206127237U (en) | 2016-10-09 | 2016-10-09 | Gaseous low temperature freeze -drying dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105343.5U CN206127237U (en) | 2016-10-09 | 2016-10-09 | Gaseous low temperature freeze -drying dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206127237U true CN206127237U (en) | 2017-04-26 |
Family
ID=58572009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621105343.5U Active CN206127237U (en) | 2016-10-09 | 2016-10-09 | Gaseous low temperature freeze -drying dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206127237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097122A (en) * | 2018-09-21 | 2018-12-28 | 四川贵源石油化工工程有限公司 | Moisture blow-through natural gas in low temperature is dehydrated hydrocarbon removal process |
-
2016
- 2016-10-09 CN CN201621105343.5U patent/CN206127237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097122A (en) * | 2018-09-21 | 2018-12-28 | 四川贵源石油化工工程有限公司 | Moisture blow-through natural gas in low temperature is dehydrated hydrocarbon removal process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1311209C (en) | Apparatus for reclaiming and purifying chlorinated fluorocarbons | |
| CN104083981B (en) | The straight touch degree of depth cooling device that volatile organic compound from waste gas reclaims and recovery method | |
| CN104457002B (en) | Integrated double-cooling water chilling unit | |
| CN204182270U (en) | Condensing hot air furnace freezing type drier | |
| CN205933758U (en) | Condensing vapor recovery system equipment | |
| CN203569054U (en) | Dehumidifying device for converter gas | |
| CN108826831A (en) | The device and technique of the cryogenic separation CO gas of nitrogen cycle refrigeration | |
| CN110207457A (en) | It is a kind of can liquid nitrogen processed air separation plant and its application method | |
| CN102296979B (en) | Dedusting and dehydrating process of deep condensation to gas by utilizing natural cold source | |
| CN206315573U (en) | Multicomponent tail gas ON-LINE SEPARATION purification devices | |
| CN204240715U (en) | A kind of freeze drier | |
| CN206127237U (en) | Gaseous low temperature freeze -drying dewatering device | |
| CN106345237A (en) | Cold air circulating type compressed air freeze dryer | |
| CN106350141A (en) | Low-temperature gas freeze-drying and dehydrating process and device | |
| CN201371022Y (en) | High-efficiency compact energy-saving refrigerated type dryer | |
| RU2280826C2 (en) | Method and plant for partial natural gas liquefaction | |
| JP2013525718A (en) | Method and apparatus for compressing and cooling air | |
| CN208751134U (en) | A kind of device of the cryogenic separation CO gas of nitrogen cycle refrigeration | |
| CN109097122A (en) | Moisture blow-through natural gas in low temperature is dehydrated hydrocarbon removal process | |
| CN206638482U (en) | A kind of condenser system of flue gas analysis pretreatment | |
| US3166914A (en) | Process of refrigeration | |
| CN207113319U (en) | Separator for incoagulable gas in the ammonia absorption type refrigeration circulatory system | |
| CN106345238A (en) | Freeze type compressed air dryer | |
| CN202039031U (en) | Skid-mounted middle-small sized light hydrocarbon extracting system employing vortex tube for secondary refrigeration | |
| CN205690739U (en) | A kind of air source heat pump heats refrigeration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |