CN203710726U - Heat pump rectifying device for oil-free screw compressor - Google Patents
Heat pump rectifying device for oil-free screw compressor Download PDFInfo
- Publication number
- CN203710726U CN203710726U CN201420070030.5U CN201420070030U CN203710726U CN 203710726 U CN203710726 U CN 203710726U CN 201420070030 U CN201420070030 U CN 201420070030U CN 203710726 U CN203710726 U CN 203710726U
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- CN
- China
- Prior art keywords
- compressor
- free screw
- screw compressor
- oil
- heat pump
- 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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model provides a heat pump rectifying device for an oil-free screw compressor. The device is provided with a rectifying tower, wherein the oil-free screw compressor is arranged behind the rectifying tower; a rectifying tower bottom reboiler is arranged behind the compressor; a cooler is arranged behind the reboiler; a separator is arranged behind the cooler; and a part of liquid in the separator is returned to the oil-free screw compressor through a regulating valve for controlling the temperature and the outlet temperature of the oil-free screw compressor. The device can be used for reducing the energy consumption and lowering the operating cost of the device without needing steam or heat medium supply of the tower bottom reboiler, and also meets the requirements on cleanness, no pollution and pressurization of gas.
Description
Technical field
The utility model relates to a kind of oil free screw compressor heat pump distillation apparatus, belongs to oil, petrochemical machinery field.
Background technology
Some rectifying column operating pressure is normal pressure or has a little negative pressure, tower top out low being not enough to of gas pressure is carried, need to carry after compressor boost, as crude stabilizer, overhead gas temperature after compressor supercharging raises, and generally after refrigerated separation, carries, this part energy does not utilize, and at the bottom of tower, need reboiler heating, and expending more heat, the load that therefore reduces rectifying column is that rectifying column is produced energy-conservation main path.
Heat pump distillation, as a kind of power-saving technology that can effectively reduce rectifier unit thermic load, has been widely used in various chemical process, uses result to show, heat pump distillation technology can greatly reduce energy consumption, obtains significant economic benefit.
Summary of the invention
Task of the present utility model is to adopt oil free screw compressor that the gas of rectifying tower top is directly compressed, gas temperature enters reboiler after raising and adds thermal material, after recovering energy, enter cooler below and enter separator after cooling, a liquid part after separation turns back to and in compressor, controls the temperature in compressor, a part enters collecting tank, after the direct supercharging of gas, is transported to downstream unit.
Innovative point of the present utility model is: adopt oil free screw compressor heat pump distillation apparatus, the partially liq after separator returns in oil free screw compressor by control valve, is used for controlling temperature and outlet temperature in oil free screw compressor.This device can not need the steam of tower bottom reboiler or heating agent to supply with, and has reduced energy consumption, has reduced the operating cost of device, meets again the requirement of the pollution-free and supercharging of cleaning gas simultaneously.
The utility model feature is structurally: be provided with a rectifying column, rectifying tower top gaseous compresses through oil free screw compressor, after compressor, enter reboiler at the bottom of rectifying tower, after reboiler, be provided with cooler, after cooler, be provided with separator, on separator, be provided with the liquid control valve that returns to helical-lobe compressor, be used for controlling the temperature of material after temperature in compressor bank and compressor, meet the load of rectifying column tower bottom reboiler, meet the requirement that gas boosting is carried simultaneously.
accompanying drawing explanation
Accompanying drawing 1 is described is one of the present utility model and realizes case.Below in conjunction with drawings and Examples, the utility model is further illustrated.
the specific embodiment
Be provided with a rectifying column (1), at rectifying column (1) tower overhead gas, through oil free screw compressor (2), compress, after compressor, be provided with rectifying column tower bottom reboiler (3), after reboiler (3), be provided with cooler (4), after cooler, be provided with separator (6), on separator (6), be provided with the liquid control valve (5) that returns to helical-lobe compressor, be used for controlling the temperature of material after temperature in compressor bank and compressor, meet the load of rectifying column (1) tower bottom reboiler (3), meet the requirement that gas boosting is carried simultaneously.
Claims (1)
1. an oil free screw compressor heat pump distillation apparatus, its structural being characterized as:
Be provided with a rectifying column (1), at rectifying column (1) tower overhead gas, through oil free screw compressor (2), compress, after compressor, be provided with rectifying column tower bottom reboiler (3), after reboiler (3), be provided with cooler (4), after cooler (4), be provided with separator (6), on separator (6), be provided with the liquid control valve (5) that returns to helical-lobe compressor, be used for controlling the temperature of material after temperature in compressor bank and compressor, meet the load of rectifying column (1) tower bottom reboiler (3), meet the requirement that gas boosting is carried simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070030.5U CN203710726U (en) | 2014-02-18 | 2014-02-18 | Heat pump rectifying device for oil-free screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070030.5U CN203710726U (en) | 2014-02-18 | 2014-02-18 | Heat pump rectifying device for oil-free screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710726U true CN203710726U (en) | 2014-07-16 |
Family
ID=51149929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070030.5U Expired - Fee Related CN203710726U (en) | 2014-02-18 | 2014-02-18 | Heat pump rectifying device for oil-free screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203710726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675334A (en) * | 2019-01-22 | 2019-04-26 | 天津乐科节能科技有限公司 | Potassium tert-butoxide directly connects compression from backheat distillation system and method |
-
2014
- 2014-02-18 CN CN201420070030.5U patent/CN203710726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675334A (en) * | 2019-01-22 | 2019-04-26 | 天津乐科节能科技有限公司 | Potassium tert-butoxide directly connects compression from backheat distillation system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20220218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |