CN206376902U - Turbine expansion unit blanket gas recovery system - Google Patents
Turbine expansion unit blanket gas recovery system Download PDFInfo
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- CN206376902U CN206376902U CN201720076246.6U CN201720076246U CN206376902U CN 206376902 U CN206376902 U CN 206376902U CN 201720076246 U CN201720076246 U CN 201720076246U CN 206376902 U CN206376902 U CN 206376902U
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- forecoolers
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Abstract
A kind of Turbine expansion unit blanket gas recovery system, including pedestal, one-level, two grades of forecoolers, switch board, low temperature refrigerator group, compressor, gas reservoir, knockout drum and dry filtrating equipment, one-level forecooler is connected with compressor, mixed gas is introduced into compressor, compressor, dry filtrating equipment, gas reservoir, two grades of forecoolers, low temperature refrigerator group and knockout drum are connected in a series arrangement successively, knockout drum is connected by pipeline with ORC system, the liquid refrigerant being collected into is subjected to recycling, knockout drum is connected with two grades of forecoolers and one-level forecooler successively again, the low temperature nitrogen being collected into exhaust is introduced into two grades of forecoolers and one-level forecooler precooling is carried out to mixed gas.Advantage：Working medium gas is recycled, and will not leak to air, reduces operating cost, and cleaning ambient makes full use of the low temperature nitrogen produced in flow to carry out precooling to gaseous mixture, reduces energy consumption.
Description
Technical field
The utility model belongs to turbo-expander blanket gas recovery technology field, and in particular to a kind of Turbine expansion unit is close
Seal gas recovery system.
Background technology
Turbine expansion generating set is the energy regeneratings such as used heat waste vapour, differential pressure type energy regenerating recycling, natural gas liquefaction
Gasification energy is utilized and combustion gas alliance residual heat integrative utilizes visual plant when generating electricity.As countries in the world are to the abundant profit of the energy
More attention, in the industry to energy regenerating generating equipment it is efficient, rationalize and densification etc. requirement also more and more higher.
Turbine expansion generating set carries out energy conversion using the change of speed during Working fluid flow.Circulation of the working medium in turbo-expander
Expanded in part to obtain kinetic energy, external work, the interior energy and temperature of reduction outlet working medium are exported by work wheel shaft.In modern industry
In, turbine expansion generating set is mainly used in refrigeration and energy regenerating.Current turbine expansion generating set driving cycle system compared with
The mode of ORC organic Rankine bottoming cycles is employed more, it is some to use R245fa as circulation industrial according to the difference of Cooling and Heat Source parameter
Matter, what is had then uses other working medium, such as propane, iso-butane, R134a.Because organic working medium is expensive, and to environment
Influence or belong to poisonous and harmful substance, therefore all applications are both needed to consider the air-tightness of holding system, reduce operating cost,
The recovery to blanket gas it is also proposed higher requirement simultaneously, but at present, such device there is no the sexually matured solution party of system
Case.
In view of above-mentioned prior art, the applicant has made beneficial design, technical scheme described below be
Produced under this background.
The content of the invention
The purpose of this utility model is that providing the Turbine expansion unit blanket gas that a kind of organic efficiency is high, energy consumption is low reclaims
System.
The purpose of this utility model is such to what is reached, a kind of Turbine expansion unit blanket gas recovery system, its feature
It is：Including pedestal, one-level forecooler, two grades of forecoolers, switch board, low temperature refrigerator group, compressor, gas reservoir, gas-liquids
Knockout drum and dry filtrating equipment, described pedestal are provided with support, described two grades of forecoolers, one in one end of length direction
Level forecooler and switch board are fixedly installed on described support successively from bottom to top, and described low temperature refrigerator group is arranged on
The side of support, described compressor is fixed on the other end of the length direction of pedestal, low temperature refrigerator group and compressor with
Switch board is electrically connected, and described gas reservoir and knockout drum is fixed on the centre of the length direction of pedestal, described one-level
Forecooler is connected by pipeline with compressor, and mixed gas introduced into compressor, compressor, dry filtrating equipment, gas reservoir,
Two grades of forecoolers, low temperature refrigerator group and knockout drum pass sequentially through pipeline and connected in a series arrangement, and knockout drum leads to
Pipeline is crossed to connect with ORC system, by the liquid refrigerant being collected into carry out recycling, knockout drum further through pipeline successively
Connected with two grades of forecoolers and one-level forecooler, the low temperature nitrogen being collected into exhaust is introduced into two grades of forecoolers and one-level forecooler
In to mixed gas carry out precooling.
In a specific embodiment of the present utility model, described knockout drum is between two grades of forecoolers
Pipeline is provided with pressure gauge.
In another specific embodiment of the present utility model, described knockout drum is between ORC system
Pipeline is provided with thermometer.
In another specific embodiment of the present utility model, magnetic turnover panel liquid level is provided with described knockout drum
Meter, one end of described magnetic double level gauge connect with knockout drum, the other end is with being arranged on knockout drum and two grades in advance
Pipeline connection between cooler.
In another specific embodiment of the present utility model, in addition to the first ball valve, the second ball valve, the 3rd ball valve,
4th ball valve, the 5th ball valve and the 6th ball valve, the first described ball valve are arranged between compressor and dry filtrating equipment
On pipeline, the second described ball valve is arranged on the bottom of gas reservoir, and the 3rd described ball valve is arranged on gas reservoir and two grades
On pipeline between forecooler, the 4th described ball valve is arranged on the top of knockout drum and is connected on knockout drum and two
Level forecooler between pipeline on, the 5th described ball valve be arranged on the bottom of knockout drum and be connected on knockout drum and
On pipeline between ORC system, the 6th described ball valve is connected on the pipeline between the 5th ball valve and ORC system.
The utility model compared with prior art, has an advantageous effect in that as a result of said structure：Using organic
The physical characteristic of working medium, compression is used with condensation abstraction technical combinations, and is divided using the different condensing temperature of gas with various
From working medium gas and sealing nitrogen, it is ensured that the recycling of working medium gas, working medium gas leakage is greatly reduced, reduces and runs into
This, cleaning ambient makes full use of the low temperature nitrogen produced in system flow to carry out precooling to gaseous mixture, reduces energy consumption；Overall knot
Structure advantages of simple, small volume can be controlled individually or on-line operation, and operational efficiency is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 another visual angle schematic diagram.
Fig. 3 is workflow schematic diagram of the present utility model.
In figure：1. pedestal；2. two grades of forecoolers；3. one-level forecooler；4. switch board；5. low temperature refrigerator group；6. compression
Machine；7. gas reservoir；8. knockout drum；9. dry filtrating equipment；10. support；11. pressure gauge；12. thermometer；13. magnetic is turned over
Plate liquid level gauge；14. the first ball valve；15. the second ball valve；16. the 3rd ball valve；17. the 4th ball valve；18. the 5th ball valve；19. the 6th
Ball valve.
Embodiment
In order that the public can be fully understood by technical spirit of the present utility model and beneficial effect, applicant will combine below
Accompanying drawing is described in detail by embodiment of the present utility model, but description of the applicant to embodiment is not to technical scheme
Limitation, any changed in the form rather than substance according to the utility model design should all be considered as protection model of the present utility model
Enclose.
Fig. 1 and Fig. 2 are referred to, the utility model is related to a kind of Turbine expansion unit blanket gas recovery system, including pedestal
1st, one-level forecooler 3, two grades of forecoolers 2, switch board 4, low temperature refrigerator group 5, compressor 6, gas reservoir 7, knockout drums 8
And dry filtrating equipment 9.Described pedestal 1 is provided with support 10, described two grades of forecoolers 2, one in one end of length direction
Level forecooler 3 and switch board 4 are fixedly installed on described support 10 successively from bottom to top.Described low temperature refrigerator group 5
The side of support 10 is arranged on, described compressor 6 is fixed on the other end of the length direction of pedestal 1, the He of low temperature refrigerator group 5
Compressor 6 is electrically connected with switch board 4.Described gas reservoir 7 and knockout drum 8 is fixed on the length direction of pedestal 1
It is middle.Described one-level forecooler 3 is connected by pipeline with compressor 6, and mixed gas introduced into compressor 6, compressor 6, dry
Dry filter 9, gas reservoir 7, two grades of forecoolers 2, low temperature refrigerator group 5 and knockout drum 8 pass sequentially through pipeline with
Series system is connected, and knockout drum 8 is connected by pipeline with ORC system, and the liquid refrigerant being collected into is reclaimed again into sharp
With knockout drum 8 is connected with two grades of forecoolers 2 and one-level forecooler 3 successively further through pipeline, by the low temperature nitrogen being collected into
Exhaust is introduced into two grades of forecoolers 2 and one-level forecooler 3 carries out precooling to mixed gas.Knockout drum 8 with two grades of precoolings
Pipeline between device 2, which is provided with pressure gauge 11, the pipeline between ORC system, is provided with thermometer 12.On knockout drum 8
Magnetic double level gauge 13 is additionally provided with, one end of described magnetic double level gauge 13 is connected with knockout drum 8, and the other end is with setting
Put the pipeline connection between knockout drum 8 and two grades of forecoolers 2.Described Turbine expansion unit blanket gas recovery system is also
It is described including the first ball valve 14, the second ball valve 15, the 3rd ball valve 16, the 4th ball valve 17, the 5th ball valve 18 and the 6th ball valve 19
The first ball valve 14 be arranged on the pipeline between compressor 6 and dry filtrating equipment 9, the second described ball valve 15 is arranged on gas
The bottom of body storage tank 7, the 3rd described ball valve 16 is arranged on the pipeline between gas reservoir 7 and two grades of forecoolers 2, described
The pipeline that 4th ball valve 17 is arranged on the top of knockout drum 8 and is connected between knockout drum 8 and two grades of forecoolers 2
On, the 4th ball valve 17 is nitrogen venting ball valve, and the 5th described ball valve 18 is arranged on the bottom of knockout drum 8 and is connected on gas
On pipeline between liquid knockout drum 8 and ORC system, the 6th described ball valve 19 is connected between the 5th ball valve 18 and ORC system
Pipeline on, be used as outlet tapping valve.
Refer to Fig. 3 and combine Fig. 1 and Fig. 2, workflow of the present utility model is illustrated.Turbo-expander is sealed
Gas exhaust is the mixed gas comprising organic working medium gas and isolation nitrogen, and prior art is that mixed gas is directly emptied or lighted a fire
Torch, can so cause the waste and environmental pollution of unstrpped gas, and the scheme that the utility model is related to is to lead to mixed gas
Recovery system is recycled, and idiographic flow is as follows：
S1）The open and-shut mode of each ball valve of confirmation system, the second ball valve 15 and the 6th ball valve 19 for making the bottom of gas reservoir 7 be
Closed mode, the 5th ball valve 18 opens about half aperture, and the first ball valve 14, the 3rd ball valve 16 and the 4th ball valve 17 are unlatching shape
State；
S2）Confirm that general supply has been connected, the system uses three-phase 380V alternating voltages；
S3）Open switch board 4 general supply, after power supply indicator is lighted connect switch board 4 on compressor power and
Low temperature refrigerator group power supply；
S4）Sealing nitrogen is passed through, starts compressor 6, the nitrogen venting ball valve at the top of regulation knockout drum 8, i.e., the 4th
The aperture of ball valve 17, it is ensured that the voltage stabilizing of knockout drum 8 is in 0.3Mpa~0.35MPa（G）, now ORC system generating set do not open
Nitrogen is only sealed in beginning thermal cycle, system, the state is kept for more than 30 minutes；
S5）Before thermal cycle, that is, it is passed through before working medium gas, starts low temperature refrigerator group 5, and by temperature stabilization to -50
DEG C~-70 DEG C between, now ORC system can carry out thermal cycle, have working medium gas in circulation and seal the mixed gas of nitrogen；
S6 mixed gas) is led into compressor 6, mixture pressure is improved to 4Kgf（G）Left and right, while by compressor
6 coolers carried are cooled down；
S7) because mixed gas may contain moisture and impurity, it is therefore desirable to first pass through dry filtrating equipment 9 and filtered
Dry, afterwards into gas reservoir 7, now mixed gas recovers normal temperature；
S8) mixed gas enters two grades of progress precoolings of forecoolers 2, and now temperature is reduced to -14 DEG C or so；
S9) mixed gas enters low temperature refrigerator group 5, and temperature is down to -70 DEG C, now, organic working medium condensation liquefaction, and nitrogen
Gas is still gaseous state；
S10) liquid refrigerant and low temperature nitrogen enter knockout drum 8, and the pressure of knockout drum 8 is 3.54Kgf（G）,
Temperature is -70 DEG C, and heat-insulation pressure keeping, and then -70 DEG C of low temperature nitrogen sequentially enters two grades of forecoolers 2 and one-level forecooler 3, right
Gaseous mixture carries out precooling, effectively utilizes cold energy；
S11）When liquid refrigerant rises to the upper liquid level sign of magnetic double level gauge 13, the 6th ball valve 19 is opened, now
Because the pressure of knockout drum 8 is more than the pressure of fluid reservoir in ORC system, liquid refrigerant is drained into fluid reservoir and reclaimed again
Utilize, when liquid level declines and reaches the lower liquid level sign of magnetic double level gauge 13, close the 6th ball valve 19, liquid level rises again
The step for repeating afterwards.
Organic working medium yield of the present utility model is 5.715kg/h, and theoretical recovery is up to 98.5%, is effectively ensured
The recycling of working medium gas, greatly reduces the leakage of working medium gas, reduces operating cost, cleaning ambient.
Claims (5)
1. a kind of Turbine expansion unit blanket gas recovery system, it is characterised in that：Including pedestal (1), one-level forecooler (3), two
Level forecooler (2), switch board (4), low temperature refrigerator group (5), compressor (6), gas reservoir (7), knockout drum (8) and
Dry filtrating equipment (9), described pedestal (1) is provided with support (10), two grades of described forecoolers in one end of length direction
(2), one-level forecooler (3) and switch board (4) are fixedly installed on described support (10) successively from bottom to top, and described is low
Warm refrigeration unit (5) is arranged on the side of support (10), and described compressor (6) is fixed on the another of the length direction of pedestal (1)
One end, low temperature refrigerator group (5) and compressor (6) are electrically connected with switch board (4), described gas reservoir (7) and gas-liquid point
From the centre for the length direction that tank (8) is fixed on pedestal (1), described one-level forecooler (3) is connected by pipeline and compressor (6)
It is logical, mixed gas is introduced into compressor (6), compressor (6), dry filtrating equipment (9), gas reservoir (7), two grades of forecoolers
(2), low temperature refrigerator group (5) and knockout drum (8) pass sequentially through pipeline and connected in a series arrangement, knockout drum (8)
Connected by pipeline with ORC system, the liquid refrigerant being collected into is subjected to recycling, knockout drum (8) is further through pipe
Road is connected with two grades of forecoolers (2) and one-level forecooler (3) successively, and the low temperature nitrogen being collected into exhaust is introduced into two grades of forecoolers
(2) and in one-level forecooler (3) to mixed gas precooling is carried out.
2. Turbine expansion unit blanket gas recovery system according to claim 1, it is characterised in that described gas-liquid separation
Tank (8) is provided with pressure gauge (11) on the pipeline between two grades of forecoolers (2).
3. Turbine expansion unit blanket gas recovery system according to claim 1, it is characterised in that described gas-liquid separation
Tank (8) is provided with thermometer (12) on the pipeline between ORC system.
4. Turbine expansion unit blanket gas recovery system according to claim 1, it is characterised in that described gas-liquid separation
Magnetic double level gauge (13) is provided with tank (8), one end of described magnetic double level gauge (13) connects with knockout drum (8)
The logical, other end and the pipeline connection being arranged between knockout drum (8) and two grades of forecoolers (2).
5. Turbine expansion unit blanket gas recovery system according to claim 1, it is characterised in that also including the first ball valve
(14), the second ball valve (15), the 3rd ball valve (16), the 4th ball valve (17), the 5th ball valve (18) and the 6th ball valve (19), described
The first ball valve (14) be arranged on the pipeline between compressor (6) and dry filtrating equipment (9), described the second ball valve (15)
Be arranged on the bottom of gas reservoir (7), the 3rd described ball valve (16) be arranged on gas reservoir (7) and two grades of forecoolers (2) it
Between pipeline on, the 4th described ball valve (17) be arranged on the top of knockout drum (8) and be connected on knockout drum (8) and
On pipeline between two grades of forecoolers (2), the 5th described ball valve (18) is arranged on the bottom of knockout drum (8) and is connected on
Knockout drum (8) is on the pipeline between ORC system, and the 6th described ball valve (19) is connected on the 5th ball valve (18) and ORC
On pipeline between system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076246.6U CN206376902U (en) | 2017-01-19 | 2017-01-19 | Turbine expansion unit blanket gas recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076246.6U CN206376902U (en) | 2017-01-19 | 2017-01-19 | Turbine expansion unit blanket gas recovery system |
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| Publication Number | Publication Date |
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| CN206376902U true CN206376902U (en) | 2017-08-04 |
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| CN201720076246.6U Active CN206376902U (en) | 2017-01-19 | 2017-01-19 | Turbine expansion unit blanket gas recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761958A (en) * | 2017-01-19 | 2017-05-31 | 联优机械(常熟)有限公司 | Turbine expansion unit blanket gas recovery system |
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2017
- 2017-01-19 CN CN201720076246.6U patent/CN206376902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761958A (en) * | 2017-01-19 | 2017-05-31 | 联优机械(常熟)有限公司 | Turbine expansion unit blanket gas recovery system |
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