CN108970165A - A kind of vapour gas separation method - Google Patents
A kind of vapour gas separation method Download PDFInfo
- Publication number
- CN108970165A CN108970165A CN201810741645.9A CN201810741645A CN108970165A CN 108970165 A CN108970165 A CN 108970165A CN 201810741645 A CN201810741645 A CN 201810741645A CN 108970165 A CN108970165 A CN 108970165A
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- temperature
- vapour
- evaporator
- separator
- separation method
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- 238000000926 separation method Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 63
- 239000002918 waste heat Substances 0.000 abstract description 19
- 239000012535 impurity Substances 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 8
- 229920006395 saturated elastomer Polymers 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000015210 Fockea angustifolia Nutrition 0.000 description 1
- 244000186654 Fockea angustifolia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention provides a kind of vapour gas separation methods, belong to vapour gas separation technology field, solve prior art waste vapour waste heat because being mixed with incondensable gas impurity, the low technical problem of utilization rate of waste heat.This method are as follows: the vapour gas mixture of high parameter is passed through in evaporator, is condensed into air-water mixture in the heat exchanger of evaporator；Air-water mixture is passed through the liquid level of separator hereinafter, incondensable gas is discharged by the pressure limiting valve on separator top again, the liquid of separator lower part is back to evaporator by external pipe, externally confesses again by the saturated vapor that heat exchanger heating becomes low parameter.The present invention is separated using the method that separation, reflux combine to incondensable gas impurity is mixed in waste vapour waste heat, obtain pure steam, residual heat resources can preferably be utilized, achieve the purpose that energy conservation, increase economic benefit, avoid the unordered discharge of waste heat exhaust gas, expand UTILIZATION OF VESIDUAL HEAT IN direction, reduce " white cigarette ", meets the national white policy requirements that disappear at present.
Description
Technical field
The present invention relates to heat recovery technology fields, more particularly, to a kind of vapour gas separation method.
Background technique
Currently, waste heat includes more than high-temp waste gas waste heat, cooling medium waste heat, waste vapour waste water residual heat, high-temperature product and clinker
Heat, chemical reaction waste heat, combustible exhaust gas waste liquid and waste material waste heat and high-pressure fluid overbottom pressure etc., according to investigation, every profession and trade it is remaining
Hot total resources account for about the 17%-67% of its fuel consumption total amount, and the residual heat resources of recoverable are about waste heat total resources
60%, so heat recovery is widely used in respectively as raising Energy economy quality, a fuel-saving important channel
A field.
Applicants have discovered that at least there is following technical problem in the prior art: having largely in field of waste heat utilization containing non-condensing
The impure net pressurized vapor of gas, vapour gas mixture can only be used to heat supply at present, and residual heat resources could not be fully used, if directly
Connect by vapour gas mixture introduce steam turbine acting then efficiency it is lower and unfavorable to equipment, so by not coagulating in vapour gas mixture
It is necessary for utilize to steam waste heat again after the impurity separation such as knot gas.
Summary of the invention
The purpose of the present invention is to provide a kind of vapour gas separation methods, to solve existing waste vapour waste heat because being mixed with non-condensing gas
Body impurity, the low technical problem of utilization rate of waste heat.Optimal technical scheme in many technical solutions provided by the invention can produce
Raw many technical effects elaboration as detailed below.
To achieve the above object, the present invention provides following technical schemes:
The present invention provides a kind of vapour gas separation methods, include the following steps:
Temperature is T by S11, pressure P1Vapour gas mixture be passed through in evaporator and condense, obtaining temperature is T2Air water
Mixture；
The temperature is T by S22Air-water mixture be passed through separator, the pressure isolated be P2Non-condensing gas
Body and temperature are T3Unsaturated water；
The temperature is T by S33Unsaturated water the evaporator is back to by external pipe；
The temperature is T in the evaporator by S43Unsaturated water be warming up to temperature be T4, pressure P3It is full
It is externally confessed with steam.
Preferably, temperature is T in the S11The vapour gas mixture carried out by the heat exchanger that is set in evaporator
Condensation.
Preferably, temperature T1>T2>T3, and T1>T4, T4>T3。
Preferably, filling into temperature to the separator in the S2 is T5Unsaturated water carry out heat exchange cooling, T2 is dropped
Temperature is to T3.
Preferably, the incondensable gas isolated in the S2 is discharged by pressure limiting valve.
Preferably, the incondensable gas isolated is gathered in above the separator interior, as incondensable gas pressure P2
The pressure limiting valve is opened when greater than the setting pressure of the pressure limiting valve.
Preferably, temperature is T in the S33Unsaturated water steamed by the flow-limiting valve adjustment being arranged on the external pipe
Send out liquid level in device.
Preferably, temperature is T in the S43Unsaturated water T is warming up to by heat exchanger4Saturated vapor after externally supply
Out.
Preferably, the step further include:
The sewage of S5, the evaporator and the separator is discharged by sewage draining exit.
Preferably, by the sewage draining exit, the pressure limiting valve and the common adjustment effect of the flow-limiting valve, make the separator
In liquid level fluctuated in scheduled water level range.
The present invention relates to a kind of vapour gas separation methods to have the following beneficial effects: compared with prior art
A kind of vapour gas separation method provided by the invention, is passed through evaporator and separator for vapour gas mixture, obtains pure
Saturated vapor is externally confessed, and the impurity such as incondensable gas are efficiently separated, and preferably utilizes residual heat resources, is reached energy conservation, is increased
Add the purpose of economic benefit, while improving the quality of a large amount of impure high temperature pressurized vapors, avoids the unordered of waste heat exhaust gas
UTILIZATION OF VESIDUAL HEAT IN direction is expanded in discharge, reduces " white cigarette ", meets the national white policy requirements that disappear at present.
Detailed description of the invention
It, below will be to institute in description of the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only the embodiment of the present invention, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the flow chart of vapour gas separation method of the present invention；
1, evaporator in figure；11, heat exchanger；12,T2Air-water mixture；13,T4Unsaturated water；14, evaporator sewage draining exit；
2, separator；21,T3Unsaturated water；22, separator sewage draining exit；3, vapour gas mixture；4, saturated vapor；5,T5Unsaturated water；6,
Incondensable gas；7, external pipe；8, pressure limiting valve；9, flow-limiting valve.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
In the description of the present invention, it is to be understood that, term " center ", " lateral ", " length ", " width ", " height ",
The instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side "
Orientation or positional relationship is to be merely for convenience of description of the present invention and simplification of the description based on orientation or positional relationship shown in FIG. 1,
Rather than the equipment or element of indication or suggestion meaning must have a particular orientation, is constructed and operated in a specific orientation, because
This is not considered as limiting the invention.
The present invention provides a kind of vapour gas separation methods, and process is as shown in Figure 1, include the following steps:
Temperature is T by S11, pressure P1Vapour gas mixture be passed through in evaporator and condense, obtaining temperature is T2Air water
Mixture；
The temperature is T by S22Air-water mixture be passed through separator, the pressure isolated be P2Non-condensing gas
Body and temperature are T3Unsaturated water；
The temperature is T by S33Unsaturated water the evaporator is back to by external pipe；
The temperature is T in the evaporator by S43Unsaturated water be warming up to temperature be T4, pressure P3It is full
It is externally confessed with steam.
Wherein, incondensable gas refers to the gas being mixed among vapor including air, flue gas etc..Specifically, this implementation
The vapour gas separation method of example is based on vapour gas separating device, and vapour gas separating device includes evaporator 1 and separator 2, evaporator 1 and separator
2 be the tank structure that inside is cavity, and the two is connected, and vapour gas mixture 3 is carried out cold by the heat exchanger 11 in evaporator 1
It is solidifying, obtain air-water mixture 12, air-water mixture 12 is passed through 2 liquid level of separator hereinafter, obtaining unsaturated water 21, unsaturated water 21
It is back to evaporator 1 by external pipe 7, after heat exchanger 11, saturated vapor 4 is obtained and externally confesses, wherein insatiable hunger
It is discharged with the incondensable gas 6 in water 21 by separator.
A kind of vapour gas separation method provided by the invention, is passed through evaporator 1 for vapour gas mixture and condenses, after separator 2
Make water and incondensable gas 6 by two different path separation, finally obtains pure saturated vapor 4 and externally confess, and will not
The impurity such as noncondensing gas 6 efficiently separate, and solve waste vapour waste heat because being mixed with incondensable gas impurity, the low disadvantage of utilization rate of waste heat
End preferably utilizes residual heat resources, achievees the purpose that energy conservation, increases economic benefit.
As optional embodiment, temperature is T in S11Vapour gas mixture 3 condensed by heat exchanger 11, with changing
Hot device 11 can both have been realized to the condensation of mixed vapour 3 as condensing plant, work as T3But also as heating when unsaturated water 21 flows back
Equipment saves resource, saves space.
In the present embodiment, temperature T1>T2>T3, and T1>T4, T4>T3, temperature is by T1Drop to T3It is in order to which steam to be condensed into not
Saturated water is separated according to incondensable gas and water states of matter difference, incondensable gas is discharged in separator 2.
As optional embodiment, filling into temperature to the separator 2 in S2 is T5Unsaturated water 5 carry out heat exchange drop
Temperature, temperature T2Air-water mixture 12 exchange heat in the separator after, temperature drop to T3, filling into temperature is T5Unsaturation
Water 5 be first in order to which the water temperature in separator 2 is dropped to predetermined temperature, followed by order to supplement the water level in separator 2, due to
Impurity in mixture needs to discharge by separator sewage draining exit 22, can reduce the water in separator 2 and cause not can guarantee
There is sufficient water to enter in evaporator 1 and generates steam.Wherein, if needing to be passed through separator 2 temperature is T5Unsaturated water 5
Depend primarily on the fluid temperature and water level in separator 2.
As optional embodiment, the incondensable gas 6 isolated in S2 is discharged by pressure limiting valve 8.
Specifically, when temperature is T2Air-water mixture 12 when being passed through under 2 liquid level of separator, incondensable gas 6 and water root
According to states of matter difference natural separation, temperature T3, pressure P2Incondensable gas be gathered in 2 top of separator, when isolating not
Pressure limiting valve 8 is opened when the pressure of noncondensing gas is higher than the setting pressure of pressure limiting valve 8, at this time T3Lower than discharge pressure P2Under saturation
Vapor (steam) temperature T6, to guarantee not making when discharge that flash distillation occurs and causes thermal loss in separator 2.
As optional embodiment, temperature is T in S33Unsaturated water pass through the flow-limiting valve 9 that is arranged on external pipe 7
Adjust liquid level in evaporator 1.
It can make the temperature T in separator 2 by external pipe 73The reflux of unsaturated water, flow-limiting valve 9 plays pressure release
Effect, flow-limiting valve 9 can also adjust liquid level in evaporator in addition to can control backflow water yield, specifically, working as heat exchange area
After determining with water in evaporator 1, the temperature of reflux is T3Unsaturated water 21 temperature can be directly become by heat exchanger 11
For T4Saturated vapor.
Wherein, temperature is T in S43Unsaturated water 21 T is warming up to by heat exchanger 114Saturated vapor after externally confess,
It can be achieved the vapour gas mixture 3 of high parameter is become low parameter saturated vapor 4 to be used to generate electricity.Wherein, incondensable gas discharge pressure
Power P2The pressure limiting valve 8 discharged by control incondensable gas determines, can be manually adjusted, P2Saturation temperature T is corresponded under pressure6>
T3。
As optional embodiment, step further include: the sewage of S5, evaporator 1 and separator 2 is arranged by sewage draining exit
It puts.
By sewage draining exit, pressure limiting valve 8 and the common adjustment effect of flow-limiting valve 9, make the liquid level in separator 2 in scheduled water level
Fluctuation in range, wherein liquid level is determined by parameter when device fabrication and field working conditions.
A kind of vapour gas separation method provided by the invention, is passed through evaporator 1 for vapour gas mixture 3 and condenses, after separator 2
Make water and incondensable gas by two different path separation, is finally reached incondensable gas impurity and effectively discharges, it is pure full
The purpose externally confessed with steam 4 solves waste vapour waste heat because being mixed with incondensable gas impurity, the low drawback of utilization rate of waste heat；
Heat exchanger 11, which is used, as condensing plant can both realize that the condensation to mixed vapour saved resource but also as heating equipment, save
Space；The unlatching of the pressure limiting valve 8 of control discharge incondensable gas, ensure that does not make that flash distillation occurs and makes in separator 2 when discharge
At thermal loss.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of vapour gas separation method, which comprises the steps of:
Temperature is T by S11, pressure P1Vapour gas mixture be passed through in evaporator and condense, obtaining temperature is T2Mixing wastewater with air
Object；
The temperature is T by S22Air-water mixture be passed through separator, the pressure isolated be P2Incondensable gas and
Temperature is T3Unsaturated water；
The temperature is T by S33Unsaturated water the evaporator is back to by external pipe；
The temperature is T in the evaporator by S43Unsaturated water be warming up to temperature be T4, pressure P3Saturation steam
Vapour is externally confessed.
2. a kind of vapour gas separation method according to claim 1, which is characterized in that temperature is T in the S11The vapour
Gas mixture is condensed by the heat exchanger being set in evaporator.
3. a kind of vapour gas separation method according to claim 1, which is characterized in that temperature T1>T2>T3, and T1>T4, T4>T3。
4. a kind of vapour gas separation method according to claim 1, which is characterized in that filled into the S2 to the separator
Temperature is T5Unsaturated water carry out heat exchange cooling.
5. a kind of vapour gas separation method according to claim 1, which is characterized in that non-condensing by what is isolated in the S2
Gas is discharged by pressure limiting valve.
6. a kind of vapour gas separation method according to claim 5, which is characterized in that the incondensable gas isolated is gathered in
Above the separator interior, as incondensable gas pressure P2The pressure limiting valve is opened when greater than the setting pressure of the pressure limiting valve
It opens.
7. a kind of vapour gas separation method according to claim 1, which is characterized in that temperature is T in the S33Unsaturation
Water adjusts liquid level in evaporator by the flow-limiting valve being arranged on the external pipe.
8. a kind of vapour gas separation method according to claim 1, which is characterized in that temperature is T in the S43Unsaturation
Water is warming up to T by heat exchanger4Saturated vapor after externally confess.
9. a kind of vapour gas separation method according to claim 1, which is characterized in that the step further include:
The sewage of S5, the evaporator and the separator is discharged by sewage draining exit.
10. a kind of vapour gas separation method according to claim 9, which is characterized in that pass through the sewage draining exit, the pressure limiting
Valve and the common adjustment effect of the flow-limiting valve, fluctuate the liquid level in the separator in scheduled water level range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741645.9A CN108970165A (en) | 2018-07-06 | 2018-07-06 | A kind of vapour gas separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741645.9A CN108970165A (en) | 2018-07-06 | 2018-07-06 | A kind of vapour gas separation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108970165A true CN108970165A (en) | 2018-12-11 |
Family
ID=64537461
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810741645.9A Pending CN108970165A (en) | 2018-07-06 | 2018-07-06 | A kind of vapour gas separation method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735187A (en) * | 2023-07-08 | 2023-09-12 | 上海阀门厂股份有限公司 | A high-parameter unsaturated water preparation device and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372765A (en) * | 1980-02-26 | 1983-02-08 | Kabushiki Kaisha Kobe Seiko Sho | Air liquefaction and separation process and equipment |
| CN201373699Y (en) * | 2009-01-22 | 2009-12-30 | 东方电机控制设备有限公司 | Combined secondary steam heat energy recovery device for heat pipe phase change heat exchanger of mechanical compression heat pump |
| CN202692016U (en) * | 2012-07-06 | 2013-01-23 | 上海伏波环保设备有限公司 | Flue gas waste heat recovery system for concurrent boiler |
-
2018
- 2018-07-06 CN CN201810741645.9A patent/CN108970165A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372765A (en) * | 1980-02-26 | 1983-02-08 | Kabushiki Kaisha Kobe Seiko Sho | Air liquefaction and separation process and equipment |
| CN201373699Y (en) * | 2009-01-22 | 2009-12-30 | 东方电机控制设备有限公司 | Combined secondary steam heat energy recovery device for heat pipe phase change heat exchanger of mechanical compression heat pump |
| CN202692016U (en) * | 2012-07-06 | 2013-01-23 | 上海伏波环保设备有限公司 | Flue gas waste heat recovery system for concurrent boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735187A (en) * | 2023-07-08 | 2023-09-12 | 上海阀门厂股份有限公司 | A high-parameter unsaturated water preparation device and preparation method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
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