CN105444526A - Throttling, heat exchanging and separating system - Google Patents
Throttling, heat exchanging and separating system Download PDFInfo
- Publication number
- CN105444526A CN105444526A CN201510957688.7A CN201510957688A CN105444526A CN 105444526 A CN105444526 A CN 105444526A CN 201510957688 A CN201510957688 A CN 201510957688A CN 105444526 A CN105444526 A CN 105444526A
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- CN
- China
- Prior art keywords
- communicated
- control valve
- liquid
- dew point
- point separator
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/60—Natural gas or synthetic natural gas [SNG]
Abstract
The invention discloses a throttling, heat exchanging and separating system. The system comprises an air inlet through which raw air can enter, a liquid outlet through which condensed liquid can be drained, a heat exchanger for cooling the raw air, a throttling valve for throttling and reducing the pressure, and a dew-point separator for separating the air and the liquid, wherein the air inlet communicates with a raw air chamber of the heat exchanger; the raw air chamber communicates with an inlet of the throttling valve, and an outlet of the throttling valve communicates with the dew-point separator; the lower part of the dew-point separator communicates with the liquid outlet while the upper part of the dew-point separator communicates with a refrigerant chamber of the heat exchanger. The system further comprises an anti-freezing liquid filling port for filling anti-freezing liquid, wherein the anti-freezing liquid filling port is connected in parallel with the air inlet. According to the system, the anti-freezing liquid is filled to prevent the condensed liquid from icing, thus devices can be prevented from blocking, the devices can run normally, and as a result, the safety can be improved.
Description
Technical field
The present invention relates to combustion gas process field, particularly relate to a kind of throttling heat exchange piece-rate system.
Background technology
The throttling heat exchange of combustion gas is separated and is widely used in combustion gas process field, its operation principle is, the temperature of unstripped gas is reduced by reducing pressure by regulating flow, and cryogenic gas is delivered to the refrigerant chamber of heat exchanger, the temperature of gas in cooling heat exchanger Raw air cavity, again enters choke valve and carries out reducing pressure by regulating flow and lower the temperature further, and enters dew point separator and carry out gas-liquid separation, gas can enter refrigerant chamber and carry out heat exchange, achieves gas-liquid separation by the way.
But in the prior art, because low temperature environment can make lime set freeze, and then occluding device, affect the normal operation of equipment, there is potential safety hazard.
Therefore, a kind of throttling heat exchange piece-rate system that can prevent lime set from freezing how is provided to be the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of throttling heat exchange piece-rate system, can prevent lime set from freezing, and then prevent equipment from blocking, improve security.
For solving the problems of the technologies described above, the invention provides a kind of throttling heat exchange piece-rate system, comprise the air inlet entered for unstripped gas, for the liquid outlet that condensate liquid is discharged, for cooling the heat exchanger of unstripped gas, choke valve for reducing pressure by regulating flow and the dew point separator for gas-liquid separation, described air inlet is communicated with the raw material air cavity of described heat exchanger, the inlet communication of described raw material air cavity and described choke valve, the outlet of described choke valve is communicated with described dew point separator, the bottom of described dew point separator is communicated with described liquid outlet, the top of described dew point separator is communicated with the refrigerant chamber of described heat exchanger, also comprise the anti-cold liquid filler for anti-cold liquid of annotating, described anti-cold liquid filler is in parallel with described air inlet.
Preferably, also comprise the dry gas outlet for discharging re-heat gas, for detecting the dry gas detector of dry gas and the dry gas control valve by described dry gas detector control, described dry gas outlet is communicated with by described dry gas control valve with described refrigerant chamber.
Preferably, the flow control valve also comprising the liquid level detector for detecting liquid level in described dew point separator and control by described liquid level detector, the bottom of described dew point separator is communicated with by described flow control valve with described liquid outlet.
Preferably, also comprise for emptying drain, for detecting the pressure detector of pressure in described dew point separator and the emptying control valve by described pressure detector control, the top of described dew point separator is communicated with by described emptying control valve with described drain.
Preferably, the three-way control valve also comprising the gaseous state detector for detecting gaseous state and control by described gaseous state detector, the import of described three-way control valve is communicated with described air inlet, and two working holes of described three-way control valve are communicated with the import of described raw material air cavity and described choke valve respectively.
Preferably, check-valves and filling control valve is communicated with between described anti-icing fluid filler and the import of described three-way control valve successively.
In throttling heat exchange piece-rate system provided by the invention, be arranged in parallel anti-icing fluid filler with air inlet, by filling anti-icing fluid, can prevent lime set from freezing, and then prevent equipment from blocking, guarantee equipment normally runs, and improves security.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of detailed description of the invention of throttling heat exchange piece-rate system provided by the present invention.
Detailed description of the invention
Core of the present invention is to provide a kind of throttling heat exchange piece-rate system, can prevent lime set from freezing, and then prevent equipment from blocking, improve security.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of detailed description of the invention of throttling heat exchange piece-rate system provided by the present invention.
The throttling heat exchange piece-rate system that the specific embodiment of the invention provides, comprise the air inlet 1 entered for unstripped gas, the liquid outlet 6 of discharging for condensate liquid, for cooling the heat exchanger 10 of unstripped gas, the choke valve 3 for reducing pressure by regulating flow and the dew point separator 4 for gas-liquid separation.Wherein air inlet 1 is communicated with the raw material air cavity of heat exchanger 10, the inlet communication of raw material air cavity and choke valve 3, the outlet of choke valve 3 is communicated with dew point separator 4, the bottom of dew point separator 4 is communicated with liquid outlet 6, the top of dew point separator 4 is communicated with the refrigerant chamber of heat exchanger 10, also comprise the anti-cold liquid filler for anti-cold liquid of annotating, anti-cold liquid filler is in parallel with air inlet 1.
Unstripped gas air inlet 1 under high normal pressure and temperature state enters, now temperature is 20 ~ 30 DEG C, the raw material air cavity entering into heat exchanger 10 is lowered the temperature, be cooled to 5 ~ 7 DEG C, cooling is realized by the reducing pressure by regulating flow of choke valve 3, temperature is down to-10 DEG C, enter into dew point separator 4, liquid is discharged from liquid outlet 6 by bottom, the refrigerant chamber that cryogenic gas enters heat exchanger 10 by top carries out heat exchange, unstripped gas in raw material air cavity is lowered the temperature, achieve gas-liquid separation, be arranged in parallel anti-icing fluid filler 2 with air inlet 1 simultaneously, for anti-icing fluid of annotating, can prevent lime set from freezing, and then prevent equipment from blocking, guarantee equipment normally runs, improve security.
In the throttling heat exchange piece-rate system that the specific embodiment of the invention provides, also comprise the dry gas outlet 8 for discharging re-heat gas, for detecting the dry gas detector of dry gas and the dry gas control valve 9 by the control of dry gas detector, dry gas outlet 8 is communicated with by dry gas control valve 9 with refrigerant chamber.The gas of re-heat can be discharged by said apparatus, and realize pressure monitoring and measure control, also can adopt other modes, as direct recovery, recycle gas, all within protection scope of the present invention.
In the throttling heat exchange piece-rate system that the specific embodiment of the invention provides, the flow control valve 5 also comprising the liquid level detector for detecting liquid level in dew point separator 4 and control by liquid level detector, the bottom of dew point separator 4 is communicated with by flow control valve 5 with liquid outlet 6.By said apparatus, according to liquid height in dew point separator 4, the discharge rate of liquid can be controlled, realizes Automated condtrol.
In the throttling heat exchange piece-rate system that the specific embodiment of the invention provides, also comprise for emptying drain 7, for detecting the emptying control valve that the pressure detector of pressure in dew point separator 4 and the detector that is stressed control, the top of dew point separator 4 is communicated with by emptying control valve with drain 7.By said apparatus, can, again in dew point separator 4 when hypertonia, gases at high pressure be discharged, the security of system is provided further.
In the throttling heat exchange piece-rate system that the specific embodiment of the invention provides, the three-way control valve 11 also comprising the gaseous state detector for detecting gaseous state and control by gas state detector, the import of three-way control valve 11 is communicated with air inlet 1, and two working holes of three-way control valve 11 are communicated with the import of raw material air cavity and choke valve 3 respectively.Pass through said apparatus, control the flowing of unstripped gas, wherein gaseous state detector is arranged and system, detects states such as the temperature of gas, flow and pressure, and then the flow circuits of unstripped gas and flow are controlled, realize Automated condtrol further.
Particularly, between anti-icing fluid filler 2 and the import of three-way control valve 11, check-valves and filling control valve can be communicated with successively.Effectively can prevent gas backstreaming and control the filling of anti-icing fluid, be convenient to the control of system.
Above throttling heat exchange piece-rate system provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a throttling heat exchange piece-rate system, comprise the air inlet entered for unstripped gas, for the liquid outlet that condensate liquid is discharged, for cooling the heat exchanger of unstripped gas, choke valve for reducing pressure by regulating flow and the dew point separator for gas-liquid separation, described air inlet is communicated with the raw material air cavity of described heat exchanger, the inlet communication of described raw material air cavity and described choke valve, the outlet of described choke valve is communicated with described dew point separator, the bottom of described dew point separator is communicated with described liquid outlet, the top of described dew point separator is communicated with the refrigerant chamber of described heat exchanger, it is characterized in that, also comprise the anti-cold liquid filler for anti-cold liquid of annotating, described anti-cold liquid filler is in parallel with described air inlet.
2. throttling heat exchange piece-rate system according to claim 1, it is characterized in that, also comprise the dry gas outlet for discharging re-heat gas, for detecting the dry gas detector of dry gas and the dry gas control valve by described dry gas detector control, described dry gas outlet is communicated with by described dry gas control valve with described refrigerant chamber.
3. throttling heat exchange piece-rate system according to claim 2, it is characterized in that, the flow control valve also comprising the liquid level detector for detecting liquid level in described dew point separator and control by described liquid level detector, the bottom of described dew point separator is communicated with by described flow control valve with described liquid outlet.
4. throttling heat exchange piece-rate system according to claim 3, it is characterized in that, also comprise for emptying drain, for detecting the pressure detector of pressure in described dew point separator and the emptying control valve by described pressure detector control, the top of described dew point separator is communicated with by described emptying control valve with described drain.
5. throttling heat exchange piece-rate system described according to Claims 1-4 any one, it is characterized in that, the three-way control valve also comprising the gaseous state detector for detecting gaseous state and control by described gaseous state detector, the import of described three-way control valve is communicated with described air inlet, and two working holes of described three-way control valve are communicated with the import of described raw material air cavity and described choke valve respectively.
6. throttling heat exchange piece-rate system according to claim 5, is characterized in that, is communicated with check-valves and filling control valve between described anti-icing fluid filler and the import of described three-way control valve successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957688.7A CN105444526A (en) | 2015-12-18 | 2015-12-18 | Throttling, heat exchanging and separating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957688.7A CN105444526A (en) | 2015-12-18 | 2015-12-18 | Throttling, heat exchanging and separating system |
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| Publication Number | Publication Date |
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| CN105444526A true CN105444526A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510957688.7A Pending CN105444526A (en) | 2015-12-18 | 2015-12-18 | Throttling, heat exchanging and separating system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020100293A1 (en) * | 2000-10-23 | 2002-08-01 | Prentice Alan Lindsay | Process and apparatus for the production of low pressure gaseous oxygen |
| CN102985164A (en) * | 2010-06-11 | 2013-03-20 | 乔治洛德方法研究和开发液化空气有限公司 | Process and apparatus for drying and compressing a co2-rich stream |
| CN103717292A (en) * | 2011-07-25 | 2014-04-09 | 乔治洛德方法研究和开发液化空气有限公司 | Process and apparatus for cooling and compressing a wet gas rich in carbon dioxide |
| CN104046400A (en) * | 2013-03-13 | 2014-09-17 | 中国石油天然气股份有限公司 | Device and method for carrying out dealkylation and dehydration by using differential pressure of inlet and outlet of pipeline |
| CN204684713U (en) * | 2015-06-10 | 2015-10-07 | 天津市冠东科技有限公司 | A kind of integrated separation system |
| CN105066584A (en) * | 2015-07-31 | 2015-11-18 | 华南理工大学 | Single-stage mixed refrigerant natural gas liquefaction flow operation regulation system and method |
| CN105080177A (en) * | 2015-09-14 | 2015-11-25 | 李永堂 | Efficient separation and vacuum condensation system for non-condensable gas |
-
2015
- 2015-12-18 CN CN201510957688.7A patent/CN105444526A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020100293A1 (en) * | 2000-10-23 | 2002-08-01 | Prentice Alan Lindsay | Process and apparatus for the production of low pressure gaseous oxygen |
| CN102985164A (en) * | 2010-06-11 | 2013-03-20 | 乔治洛德方法研究和开发液化空气有限公司 | Process and apparatus for drying and compressing a co2-rich stream |
| CN103717292A (en) * | 2011-07-25 | 2014-04-09 | 乔治洛德方法研究和开发液化空气有限公司 | Process and apparatus for cooling and compressing a wet gas rich in carbon dioxide |
| CN104046400A (en) * | 2013-03-13 | 2014-09-17 | 中国石油天然气股份有限公司 | Device and method for carrying out dealkylation and dehydration by using differential pressure of inlet and outlet of pipeline |
| CN204684713U (en) * | 2015-06-10 | 2015-10-07 | 天津市冠东科技有限公司 | A kind of integrated separation system |
| CN105066584A (en) * | 2015-07-31 | 2015-11-18 | 华南理工大学 | Single-stage mixed refrigerant natural gas liquefaction flow operation regulation system and method |
| CN105080177A (en) * | 2015-09-14 | 2015-11-25 | 李永堂 | Efficient separation and vacuum condensation system for non-condensable gas |
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Application publication date: 20160330 |
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