CN106621723A - Dryer regeneration system - Google Patents
Dryer regeneration system Download PDFInfo
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- CN106621723A CN106621723A CN201510724673.6A CN201510724673A CN106621723A CN 106621723 A CN106621723 A CN 106621723A CN 201510724673 A CN201510724673 A CN 201510724673A CN 106621723 A CN106621723 A CN 106621723A
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- drier
- gas
- compressor
- regenerative system
- dried
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Abstract
The invention discloses a dryer regeneration system which comprises an expander (103), a compressor (104) and multiple dryers. To-be-dried gas selectively goes through a first dryer (101) among the dryers, a part of dried gas is depressurized to do work and then output through the expander (103), another part of the dried gas serves as regenerated gas to be used for drying a second dryer (102) among the driers and returns into the first dryer (101) for drying after being compressed by the compressor (104), and power generated when the expander (103) does work is used for driving the compressor (104) to work. Power needed by the compressor is provided by the expander through depressurizing to do work, and in this way, energy in the process of gas throttling is fully utilized, so that energy loss caused by the fact that the regenerated gas returns into an inlet of a pressurizer in conventional processes is avoided; the regenerated gas directly returns into an inlet of the first dryer, so that the process is short, and pressure loss is small.
Description
Technical field
The present invention relates to hydro carbons manufacture field, in particular it relates to a kind of drier regenerative system.
Background technology
In chemical field, it is often necessary to gas is dried and is regenerated, for example, with expanding economy,
Natural gas, shale gas are increasingly subject to the attention of people, the liquefaction dress of its correlation as the energy for more cleaning
Put also in large quantities of constructions.Natural gas/shale gas into liquefying plant are typically contained on a small quantity before into ice chest
Water, therefore liquefying plant is typically provided with drying facility, and is furnished with matched desiccant regeneration system
System.In common flow process, desiccant regeneration generally uses dried natural gas/shale gas as regeneration
Gas, the regeneration gas after regeneration cannot send again due to causing certain pressure loss through bed
The drier entrance in drying process state is returned, and often selects to return the boosting of liquefying plant most upstream
Machine entrance, to boost again, so as to cause plant energy consumption to rise.And natural gas/the shale gas after liquefying exist
Before sending into low-temperature storage tank, typically 0.02MpaG is down to by about 4.5～5.5MpaG pressure by regulating valve
Pressure.In the process, due to having no energy regenerating means, the loss of energy is significant.
The content of the invention
It is an object of the invention to provide a kind of drier regenerative system, the drier regenerative system can be saved
The energy.
To achieve these goals, the present invention provides a kind of drier regenerative system, wherein, the drier
Regenerative system includes decompressor, compressor and multiple driers, wherein, gas-selectively ground Jing to be dried
After the first drier crossed in the plurality of drier is dried, a part of dry gas are through the decompressor
Export after decompression acting, another part dry gas are used to be dried the plurality of drier as regeneration gas
In the second drier, during first drier is then again returned to after the compressor compresses
It is dried, also, the power that decompressor acting is produced is used to drive the compressor operating.
Preferably, the output shaft of the decompressor is connected with the input shaft of the compressor.
Preferably, it is provided with ice chest between first drier and the decompressor.
Preferably, the dry gas after the decompressor reduces pressure acting are exported and give cryogenic product storage tank.
Preferably, the regeneration gas carried out adding before drying second drier through heater
Heat, and cooled down through cooler after drying second drier.
Preferably, the regeneration gas after cooler cooling enters knockout drum, through air water
It is compressed into the compressor after separation.
Preferably, the outlet temperature scope of the heater is 0 degree Celsius to 350 degrees Celsius.
Preferably, the outlet temperature scope of the cooler is -10 degrees Celsius to 100 degrees Celsius.
Preferably, the cooling medium of the cooler is the hydrocarbon refrigerant for including cooling down water and air.
Preferably, the volumetric concentration of the gas to be dried is 20%～100%, and pressure limit is
1.0MpaG～6.0MpaG.
Preferably, the pressure limit of the regeneration gas after the compressor compresses is
1.0MpaG～6.0MpaG, and less than the pressure of the gas to be dried.
Preferably, the flow of the regeneration gas is the dry gas for flowing out first drier
The 5%～35% of flow.
By above-mentioned technical proposal, use from through the dried a part of gas of the first drier as again
Angry body, regenerates to the drier in the second drier, and the regeneration gas after regeneration is through compressor
Again return to be dried in the first drier after boosting, the power needed for compressor is done by decompressor decompression
Work(is provided, and so, takes full advantage of the energy during gas throttling, it is to avoid regenerated in traditional process
Gas returns the energy loss problem that supercharger entrance is brought, and regeneration gas directly returns the first drying
The entrance of device, flow process is short, and crushing is little.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with
Detailed description below is used to explain the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is the general flow chart of the drier regenerative system that the preferred embodiment for the present invention is provided, wherein,
First drier 101 is in drying process state, and the second drier 102 is in regeneration operation condition；
Fig. 2 is the general flow chart of the drier regenerative system that the preferred embodiment for the present invention is provided, wherein,
First drier 101 is in regeneration operation condition, and the second drier 102 is in drying process state.
Description of reference numerals
The decompressor of 101 first 102 second drier of drier 103
The cryogenic product storage tank of 104 compressor, 105 ice chest 106
The knockout drum of 107 heater, 108 cooler 109
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Specific embodiment described herein is merely to illustrate and explains the present invention, is not limited to this
It is bright.
It should be noted that the second drier 102 hereinafter mentioned is referred to different from the first drier
101 drier, and not the quantity of the drier in drier regenerative system is defined.
As depicted in figs. 1 and 2, the present invention provides a kind of drier regenerative system, for example, for drying
Drier regenerative system in natural gas or shale gas liquefaction process, wherein, the drier regenerative system bag
Decompressor 103, compressor 104 and multiple driers are included, wherein, gas-selectively ground to be dried is passed through
After the first drier 101 in multiple driers is dried, a part of dry gas subtract through decompressor 103
Export after pressure acting, another part dry gas be used to being dried in multiple driers as regeneration gas the
Two driers 102, i.e., be dried source as the second drier 102, in other words can be to second drying
Device 102 is regenerated.Then, the first drier 101 is again returned to after the compression of compressor 104
In be dried, also, decompressor 103 acting produce power be used for drive compressor 104 to work.
That is, drier regenerative system is provided with least two groups driers, and one group of wherein at least is in dry behaviour
Make state, another group is in regeneration operation condition, and each drier can by multiple control valves,
For example, solenoid electric valve, or switch carry out regeneration operation condition and the switching being dried between reproduced state,
For example, in fig. 1 and 2, solid switch represents connected state, and hollow switch represents cut-off
State, it is ensured that gas can always be in dry state, improves the work effect of drier regenerative system
Rate.For example, in FIG, when the drier in the second drier 102 absorbs excess moisture, can be with
Second drier 102 is regenerated, and when the drier of the first drier 101 absorbs excess moisture,
As shown in Fig. 2 can regenerate to the first drier 101.
Therefore, as shown in figure 1, using from through the dried a part of gas work of the first drier 101
For regeneration gas, the drier in the second drier 102 is regenerated, the regeneration gas Jing after regeneration
Overcompression machine 104 again returns to be dried in the first drier 101 after boosting, needed for compressor 104
Power by decompressor 103 reduce pressure acting provide, so, take full advantage of the energy during gas throttling
Amount, it is to avoid regeneration gas returns the energy loss problem that supercharger entrance is brought in traditional process, and
Regeneration gas directly returns the entrance of the first drier, and flow process is short, and crushing is little.
It should be noted that the decompression of decompressor 103 acting directly can provide power to compressor 104,
So, system architecture is simpler compact, now, the output shaft of decompressor 103 and compressor 104 it is defeated
Enter axle to be connected.That is, the rotation of the direct drive compressor 104 of decompressor 103.In addition, decompressor 103
Decompression acting can also provide power to compressor 104 indirectly, and for example, the work done of decompressor 103 can
For generating electricity, the electrical energy drive decompressor 103 is being worked, now, if the generating institute of decompressor 103
If the energy of offer is more than the electric energy required for compressor 104, other equipment can also be powered, enter one
Step reducing energy consumption.
Wherein, the frame for movement that compressor 104 is well known to those skilled in the art, does not make in detail to this
Introduce, in addition, other can be properly also replacing with compressor 104 for gas lift pressure, the present invention
This is not restricted, among belonging to protection scope of the present invention.
Similarly, the frame for movement that decompressor 103 is well known to those skilled in the art, does not make in detail to this
Thin to introduce, other can be gas or liquid step-down and the suitable construction of output mechanical work to external world, can be with
Replace decompressor 104, the present invention is not also restricted to this, among belonging to protection scope of the present invention.
To realize to liquefying from the dried a part of gas of the first drier 101, it is dried first
Ice chest 105 is provided between device 101 and decompressor 103.Ice chest is chemical field common part, and it is
One group of efficient, cryogenic heat exchange equipment of cold insulation, can carry out cooling liquid to gas.It can be by
The efficient plate-type heat-exchanger and gas-liquid separator of compact conformation is constituted.Because low temperature easily cold scattering, it is desirable to
Extremely tight cold insulation, therefore heat exchanger and separator are packaged in a box-shaped thing with heat-insulating material
It is interior.
For ease of the product after storage liquefaction, the dry gas output after decompressor 103 reduces pressure acting
To cryogenic product storage tank 106.
For ease of ensureing the regeneration effect to the drier of the second drier 102, regeneration gas is being dried the
Heated through heater 107 before two driers 102, and be dried the second drier 102 it
Cooled down by subcooler 108.That is, the upstream of the second drier 102 arranges having heaters 107,
Downstream is provided with cooler 108." upstream, downstream " herein be for the flow direction of air-flow,
Specifically, the flow direction towards gas is downstream, and the flow direction for deviating from gas is upstream.
To realize the gas-water separation to regeneration gas, further, after cooler 108 is cooled down again
Angry body enters knockout drum 109, is compressed into compressor 104 after gas-water separation.That is,
As depicted in figs. 1 and 2, the communicating downstream of cooler 108 has knockout drum 109.
Preferably, it is to improve the regeneration effect to the second drier 102, the outlet temperature of heater 107
Scope is 0 degree Celsius to 350 degrees Celsius.
Preferably, it is further to improve the regeneration effect to the second drier 102, cooler 108 goes out
Mouth temperature range is -10 degrees Celsius to 100 degrees Celsius.
It should be noted that the outlet temperature of above-mentioned heater 107 and cooler 108, represents respectively stream
The temperature of gas in the outlet of heated device 107 and cooler 108, simply to simplify explanation, is stated as
The outlet temperature of heater 107 and cooler 108.
Preferably, it is to ensure the cooling effect to gas, the cooling medium of cooler 108 is to include cooling
The hydrocarbon refrigerant of water and air.
Preferably, it is to strengthen the drying effect for treating dry gas, the volumetric concentration of gas to be dried is
20%～100%, pressure limit is 1.0MpaG～6.0MpaG.
Further, the pressure limit of the regeneration gas after the compression of compressor 104 is
1.0MpaG～6.0MpaG, and less than the pressure of gas to be dried, to ensure the regeneration gas after compressing
The entrance of the first drier 101 can be entered to.
Preferably, the flow of regeneration gas is the flow of the dry gas for flowing out the first drier 101
5%～35%.It is further preferable that the flow of regeneration gas is the dry gas for flowing out the first drier 101
Flow 10%～20%.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited
Detail in above-mentioned embodiment, in the range of the technology design of the present invention, can be to the present invention
Technical scheme carry out various simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention is no longer separately illustrated to various possible combinations.
Additionally, can also be combined between a variety of embodiments of the present invention, as long as its
Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.
Claims (12)
1. a kind of drier regenerative system, it is characterised in that the drier regenerative system includes decompressor
(103), compressor (104) and multiple driers, wherein, gas-selectively ground to be dried is through institute
After stating the first drier (101) drying in multiple driers, a part of dry gas are through described swollen
Export after swollen machine (103) decompression acting, another part dry gas are used to be dried institute as regeneration gas
The second drier (102) in multiple driers is stated, then after the compressor (104) compression
Again return to be dried in first drier (101), also, the decompressor (103)
The power that acting is produced is used to drive the compressor (104) to work.
2. drier regenerative system according to claim 1, it is characterised in that the decompressor
(103) output shaft is connected with the input shaft of the compressor (104).
3. drier regenerative system according to claim 1, it is characterised in that described first
Ice chest (105) is provided between drier (101) and the decompressor (103).
4. drier regenerative system according to claim 3, it is characterised in that through described swollen
Dry gas after swollen machine (103) decompression acting are exported gives cryogenic product storage tank (106).
5. drier regenerative system according to claim 1, it is characterised in that the regeneration gas
Body was heated before drying second drier (102) through heater (107), and
Cooled down through cooler (108) after drying second drier (102).
6. drier regenerative system according to claim 5, it is characterised in that through described cold
But the regeneration gas after device (108) cooling enters knockout drum (109), laggard through gas-water separation
Enter the compressor (104) to be compressed.
7. according to the drier regenerative system described in claim 5, it is characterised in that the heating
The outlet temperature scope of device (107) is 0 degree Celsius to 350 degrees Celsius.
8. the drier regenerative system according to claim 5 or 7, it is characterised in that described cold
But the outlet temperature scope of device (108) is -10 degrees Celsius to 100 degrees Celsius.
9. drier regenerative system according to claim 5, it is characterised in that the cooler
(108) cooling medium is the hydrocarbon refrigerant for including cooling down water and air.
10. drier regenerative system according to claim 1, it is characterised in that described to be dried
The volumetric concentration of gas is 20%～100%, and pressure limit is 1.0MpaG～6.0MpaG.
11. drier regenerative systems according to claim 10, it is characterised in that through described
The pressure limit of the regeneration gas after compressor (104) compression is 1.0MpaG～6.0MpaG, and
And less than the pressure of the gas to be dried.
12. drier regenerative systems according to claim 1, it is characterised in that the regeneration gas
The flow of body is the 5%～35% of the flow of the dry gas of outflow first drier (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724673.6A CN106621723A (en) | 2015-10-29 | 2015-10-29 | Dryer regeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724673.6A CN106621723A (en) | 2015-10-29 | 2015-10-29 | Dryer regeneration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106621723A true CN106621723A (en) | 2017-05-10 |
Family
ID=58830836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510724673.6A Pending CN106621723A (en) | 2015-10-29 | 2015-10-29 | Dryer regeneration system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106621723A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677890A (en) * | 2019-04-24 | 2021-11-19 | 阿特拉斯·科普柯空气动力股份有限公司 | Compressor installation and method for delivering compressed gas |
| CN113825910A (en) * | 2019-06-12 | 2021-12-21 | 阿特拉斯·科普柯空气动力股份有限公司 | Drying device and method for drying compressed gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202869139U (en) * | 2012-09-24 | 2013-04-10 | 森松(江苏)海油工程装备有限公司 | Small size natural gas condensate recovery device |
| CN104248905A (en) * | 2014-09-25 | 2014-12-31 | 江苏嘉宇流体装备有限公司 | High-pressure natural gas drying and purifying system |
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2015
- 2015-10-29 CN CN201510724673.6A patent/CN106621723A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202869139U (en) * | 2012-09-24 | 2013-04-10 | 森松(江苏)海油工程装备有限公司 | Small size natural gas condensate recovery device |
| CN104248905A (en) * | 2014-09-25 | 2014-12-31 | 江苏嘉宇流体装备有限公司 | High-pressure natural gas drying and purifying system |
Non-Patent Citations (1)
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| 严子纲等: "《工业中的生物技术》", 31 May 1990, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677890A (en) * | 2019-04-24 | 2021-11-19 | 阿特拉斯·科普柯空气动力股份有限公司 | Compressor installation and method for delivering compressed gas |
| CN113825910A (en) * | 2019-06-12 | 2021-12-21 | 阿特拉斯·科普柯空气动力股份有限公司 | Drying device and method for drying compressed gas |
| CN113825910B (en) * | 2019-06-12 | 2023-10-20 | 阿特拉斯·科普柯空气动力股份有限公司 | Drying device and method for drying compressed gas |
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Application publication date: 20170510 |