CN208975196U - A kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition - Google Patents
A kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition Download PDFInfo
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- CN208975196U CN208975196U CN201821328485.7U CN201821328485U CN208975196U CN 208975196 U CN208975196 U CN 208975196U CN 201821328485 U CN201821328485 U CN 201821328485U CN 208975196 U CN208975196 U CN 208975196U
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- Prior art keywords
- propylene
- tower
- product
- delivery pipe
- heat pump
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- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 208
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 192
- 238000005057 refrigeration Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000010992 reflux Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000012071 phase Substances 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 7
- 239000007792 gaseous phase Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 31
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000001294 propane Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses the open type heat pump systems of a kind of propylene refrigeration system and C3 knockout tower composition, comprising: the overhead product of propylene tower I for carrying out rectifying to the C3 raw material of input, and is delivered to the tower bottom of propylene tower II by propylene tower I；Propylene tower II carries out rectifying for the overhead product to propylene tower I, and tower bottom product is back to propylene tower I；Compressor obtains high pressure vapor propylene product for being compressed to II overhead product of propylene tower, and at least partly high pressure vapor propylene product will be sent into propylene tower reboiler；Propylene tower reboiler send obtained liquid propylene to propylene tower II as overhead reflux for making the materials at bottom of tower of propylene tower I exchange heat with the high pressure vapor propylene product from compressor.The system of the utility model eliminates propylene overhead condenser and cryogen, and the heat of tower top is transferred to tower bottom reboiler by propylene compressor, can fully utilize energy, reduce construction cost.
Description
Technical field
The utility model relates to the technical fields of refrigeration system more particularly to a kind of propylene refrigeration system and knockout tower to form
Open type heat pump system.
Background technique
Conventional rectifying column is all to take heat away from overhead condenser, heat is added by tower bottom reboiler, energy utilization is not
Rationally.If the heat transfer that can condense top gaseous phase can adequately utilize energy to tower bottom reboiler, energy consumption is reduced.
Currently, conventional the top of the distillation column temperature is always lower than the temperature of tower bottom, heat cannot be flowed to automatically from low temperature
High temperature, unless extraneous input work.It is this that heat is known as from the heating system that low-temperature heat source is mentioned to high temperature heat source by heat by work done
Pumping system.Therefore, need at present it is a kind of can be by open type heat pump system that rectifying column energy sufficiently recycles.
Utility model content
For the technical problems in the prior art, providing one kind can be by propylene rectification tower energy for the utility model
The open type heat pump system sufficiently recycled.
To achieve the goals above, the utility model uses the following technical solution:
A kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition, includes following part:
The overhead product of propylene tower I for carrying out rectifying to the C3 raw material of input, and is delivered to propylene tower by propylene tower I
II tower bottom is as gas-phase feed；
Propylene tower II carries out rectifying for the overhead product to the propylene tower I, to obtain the gas phase as overhead product
Propylene, and tower bottom product is back to the propylene tower I as overhead reflux；
Compressor, for being compressed to obtain high pressure vapor propylene product to II overhead product of propylene tower, and it is near
High pressure vapor propylene product described in small part is sent into propylene tower reboiler and carries out heat exchange cooling；
Propylene tower reboiler, for producing the materials at bottom of tower of propylene tower I with the high pressure vapor propylene from the compressor
Object exchanges heat to boil again, and the liquid propylene that cooling obtains is sent to the propylene tower II as overhead reflux.
The utility model by the gas-phase propene component that generates propylene tower top condensation process heat transfer to tower bottom
Reboiler, heat transfer returned the tower bottom of propylene tower by reboiler again, and whole process fully utilizes energy, reduces energy consumption；Together
When, system provided by the utility model eliminates the cooler of traditional propylene tower top.
Preferably, the open type heat pump system further includes propylene tower delivery pump, for producing the tower bottom of the propylene tower II
Object is back to the tower top of the propylene tower I.
Preferably, the open type heat pump system further includes liquid propylene surge tank, is connected to the propylene tower reboiler
The second delivery pipe for conveying the first delivery pipe of the high pressure vapor propylene product and for conveying the liquid propylene, institute
The top for stating liquid propylene surge tank is connected to first delivery pipe, bottom by pipeline and is connected to described second by pipeline
Delivery pipe.The setting of liquid propylene surge tank can stablize the pressure wave of anti-locking system under the operating conditions such as driving, parking in this system
It is dynamic, keep system work more steady, ensure that the safety of production process.
The preferably described open type heat pump system further include driving reboiler, be connected to I tower bottom of propylene tower for defeated
The third delivery pipe of materials at bottom of tower and the 4th delivery pipe for conveying the gaseous phase materials after boiling again are sent, the driving reboiler
Bottom is connected to the third delivery pipe, top by pipeline and is connected to the 4th delivery pipe by pipeline, for driving
When boil I materials at bottom of tower of propylene tower again.When system just drives to run, driving reboiler is by the bottoms of I tower bottom of propylene tower
Material exchanges heat to boil, and gas-phase propene is delivered to II tower top of propylene tower to be back to pressure in propylene tower II steady to be formed
It is fixed.
Preferably, the open type heat pump system further include propylene refrigerant collecting tank, be connected to the compressor for defeated
Send the 5th delivery pipe of the part high pressure vapor propylene product, be connected to the compressor for high pressure described in transport portion
6th delivery pipe of gas-phase propene product and the 7th delivery pipe for liquid propylene to be delivered to the propylene tower II, described
The condenser for the high pressure vapor propylene product to be cooled to liquid propylene, the propylene refrigerant are provided in six delivery pipes
The 5th delivery pipe is connected at the top of collecting tank, bottom is respectively connected to the 6th delivery pipe and the 7th delivery pipe.Through
High pressure vapor propylene product after compressor compresses is divided into four tunnels, and the first via is to be fed through in propylene tower reboiler to carry out heat exchange drop
Temperature；Second tunnel is using the part high pressure vapor propylene product as the other charging of compressor suction tank；Third road is direct
It is delivered in propylene refrigerant collecting tank, stablizes the pressure in propylene refrigerant collecting tank；4th tunnel is cooling by propylene cooler
Water cooling congeals into liquid propylene caching propylene refrigerant collecting tank.Benefit of the liquid propylene as propylene tower II in propylene refrigerant collecting tank
Reflux is filled, ensures the gas, liquid balance in propylene tower I and propylene tower II.
Preferably, the open type heat pump system further includes the compressor suction tank that top is equipped with demister, for coming from
II overhead product of propylene tower carries out gas-liquid separation to provide gas-phase feed for the compressor.
Preferably, the compressor suction tank by pipeline be connected to the conveying high pressure vapor propylene product it is first defeated
Pipe is sent, for stablizing the pressure inside the compressor suction tank.
Using above-mentioned technical solution, have the following technical effect that:
The open type heat pump system of propylene refrigeration system provided by the utility model and C3 knockout tower composition, is compressed by propylene
The heat that propylene tower top generates is transferred to the reboiler at propylene tower bottom by machine, and it is essence that heat is back in propylene tower by reboiler again
Offer heat is provided.The transmitting of this energy circulation, by the external force acting of compressor realize the cryogenic media of propylene column overhead to
The energy transfer process of the high-temperature medium of propylene tower tower bottom；Meanwhile propylene rectifying separation process uses low-pressure open heat pump system,
Also the volatility of propylene and propane is further improved.
Open type heat pump system provided by the utility model eliminates the condenser of traditional the top of the distillation column, has saved construction
Cost reduces plant maintenance, the cost of overhaul.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model；
Wherein, 1-1, propylene tower I, 1-2, propylene tower II, 2, compressor, 3, propylene tower reboiler, 4, propylene refrigerant collection
Tank, 5, propylene tower delivery pump, 6, liquid propylene surge tank, 7, compressor suction tank, 8, driving reboiler.
Specific embodiment
The utility model in order to better understand is illustrated below with reference to specific embodiment of the present utility model.
The open type heat pump system of propylene refrigeration system and C3 the knockout tower composition of the utility model, including following part:
I 1-1 of propylene tower for carrying out rectifying to the C3 raw material of input, and the overhead product of I 1-1 of propylene tower is delivered to
The tower bottom of II 1-2 of propylene tower is as gas-phase feed, wherein C3 raw material include mass percentage be 10% propane components and
90% propylene component；
II 1-2 of propylene tower carries out rectifying for the overhead product to I 1-1 of propylene tower, to obtain as overhead product
Gas-phase propene, and tower bottom product is back to I 1-1 of propylene tower as overhead reflux；
Compressor 2, for being compressed to obtain high pressure vapor propylene product to the II 1-2 overhead product of propylene tower, and
At least partly described high pressure vapor propylene product is sent into propylene tower reboiler 3 and carries out heat exchange cooling；
Propylene tower reboiler 3, the materials at bottom of tower for making I 1-1 of propylene tower and the high pressure vapor third from the compressor 2
Ene product exchanges heat to boil again, and the liquid propylene that the high pressure vapor propylene product cools down is sent to the propylene
II 1-2 of tower is as overhead reflux.
Include in specific embodiment as shown in Figure 1, in the utility model there are two propylene tower, i.e. I 1-1 of propylene tower and
II 1-2 of propylene tower, I 1-1 of propylene tower tower bottom by feeding line will include mass percentage be 10% propane and 90%
Propylene be sent into I 1-1 of propylene tower as C3 raw material, gauge pressure control is 0.72MPa in I 1-1 of propylene tower, and in sensitive plate
Temperature carries out rectifying under conditions of being 15 ± 1 DEG C, then using overhead product be delivered to the tower bottom of II 1-2 of propylene tower as gas phase into
Material；Under conditions of gauge pressure is 0.69MPa in II 1-2 of propylene tower, gas-phase feed is by the tower after rectifying step by step in II 1-2 of propylene tower
The gas-phase propene of purity >=99.6% is obtained on top, remaining tower bottom product is back to I 1- of propylene tower by propylene tower delivery pump 5
1 is used as overhead reflux, completes the Matter Transfer between I 1-1 of propylene tower and II 1-2 of propylene tower.
Further include in the utility model liquid propylene surge tank 6, be connected to propylene tower reboiler 3 for conveying high-pressure gas
The top of first delivery pipe of phase propylene product and the second delivery pipe for conveying liquid propylene, liquid propylene surge tank 6 is logical
Piping is connected to first delivery pipe, bottom and is connected to second delivery pipe by pipeline.Liquid propylene in system
Surge tank 6 can stablize the pressure oscillation of anti-locking system under the operating conditions such as driving, parking, keep system work more steady, ensure that
The safety of production process.
Further include in the utility model driving reboiler 8, be connected to I 1-1 tower bottom of propylene tower for conveying materials at bottom of tower
The first delivery pipe and the second delivery pipe for conveying the gaseous phase materials after boiling again, the bottom of driving reboiler 8 passes through pipeline
It is connected to the first delivery pipe, top and the second delivery pipe is connected to by pipeline, for making I bottoms of propylene tower when driving
Material boils again.When system just brings into operation, I 1-1 materials at bottom of tower of propylene tower is exchanged heat in driving reboiler 8 to boil
It rises, driving reboiler 8 passes through extraneous low-pressure steam and provides heat, meet the heat that the vaporization of I 1-1 materials at bottom of tower of propylene tower needs,
And gas-phase propene after obtained boiling is delivered to the tower top of II 1-2 of propylene tower, power is provided for the operation of system, so that propylene
I 1-1 of tower and II 1-2 of propylene tower establishes gas, liquid balance.
Tthe utility model system further include propylene refrigerant collecting tank 4, be connected to the compressor 2 for transport portion institute
State the 5th delivery pipe of high pressure vapor propylene product, be connected to the compressor 2 for high pressure vapor third described in transport portion
6th delivery pipe of ene product and the 7th delivery pipe for liquid propylene to be delivered to II 1-2 of propylene tower, the 6th conveying
The condenser for the high pressure vapor propylene product to be cooled to liquid propylene is provided on pipe, propylene refrigerant collecting tank 4
Top is connected to the 5th delivery pipe, bottom is respectively connected to the 6th delivery pipe and the 7th delivery pipe.Propylene refrigerant is received
The liquid propylene collected in tank 4 flows back as the supplement of II 1-2 of propylene tower, has further ensured II 1- of I 1-1 of propylene tower and propylene tower
Gas phase, the balance of liquid phase in 2.
In some specific embodiments, open type heat pump system further includes the compressor suction tank that top is equipped with demister
7, for providing gas-phase feed to gas-liquid separation is carried out from II 1-2 overhead product of propylene tower for compressor 2.Compressor is inhaled
What the setting for entering tank 7 ensure that the sucking of compressor 2 is gaseous phase materials, and liquid phase material can be stayed in compressor suction tank 7, be prevented
Liquid phase is sucked in compressor 2 and liquid hammer occurs, and ensure that the safety that compressor 2 is run.
In some specific embodiments, compressor suction tank 7 is connected to conveying high-pressure gas-phase propene by pipeline and produces
First delivery pipe of object, for the pressure inside constant compression machine suction tank 7.
Specific embodiment disclosed by the utility model is as above, but the content is only to facilitate understand that this is practical
Novel and use embodiment, is not intended to limit the utility model.Skill in any the utility model technical field
Art personnel can be in the formal and details of implementation under the premise of not departing from spirit and scope disclosed by the utility model
On make any modification and variation, but the scope of patent protection of the utility model, must still be defined with appended claims
Range subject to.
Claims (7)
1. the open type heat pump system of a kind of propylene refrigeration system and C3 knockout tower composition, which is characterized in that include following part:
Propylene tower I (1-1) for carrying out rectifying to the C3 raw material of input, and the overhead product of propylene tower I (1-1) is delivered to
The tower bottom of propylene tower II (1-2) is as gas-phase feed；
Propylene tower II (1-2) carries out rectifying for the overhead product to the propylene tower I (1-1), to obtain as overhead product
Gas-phase propene, and tower bottom product is back to the propylene tower I (1-1) as overhead reflux；
Compressor (2), for being compressed to obtain high pressure vapor propylene product to propylene tower II (1-2) overhead product, and
At least partly described high pressure vapor propylene product is sent into propylene tower reboiler (3) and carries out heat exchange cooling；
Propylene tower reboiler (3), the high pressure vapor for making the materials at bottom of tower of propylene tower I (1-1) with coming from the compressor (2)
Propylene product exchanges heat to boil again, and the liquid propylene that cooling obtains is sent to the propylene tower II (1-2) as tower top
Reflux.
2. the open type heat pump system of a kind of propylene refrigeration system and C3 knockout tower composition, feature exist according to claim 1
In the open type heat pump system further includes propylene tower delivery pump (5), for returning the tower bottom product of the propylene tower II (1-2)
It is back to the tower top of the propylene tower I (1-1).
3. the open type heat pump system of a kind of propylene refrigeration system and C3 knockout tower composition, feature exist according to claim 1
In, the open type heat pump system further include liquid propylene surge tank (6), be connected to the propylene tower reboiler (3) for defeated
Send the first delivery pipe of the high pressure vapor propylene product and the second delivery pipe for conveying the liquid propylene, the liquid phase
The top of propylene surge tank (6) by pipeline is connected to first delivery pipe, bottom, and by pipeline to be connected to described second defeated
Send pipe.
4. the open type heat pump system of a kind of propylene refrigeration system and C3 knockout tower composition, feature exist according to claim 3
In, the open type heat pump system further include driving reboiler (8), be connected to propylene tower I (1-1) tower bottom for conveying tower
The third delivery pipe of substrate material and the 4th delivery pipe for conveying the gaseous phase materials after boiling again, the driving reboiler (8)
Bottom is connected to the third delivery pipe, top by pipeline and is connected to the 4th delivery pipe by pipeline, for driving
When boil propylene tower I (1-1) materials at bottom of tower again.
5. any one of -4 a kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition according to claim 1,
It is characterized in that, the open type heat pump system further includes propylene refrigerant collecting tank (4), is connected to being used for for the compressor (2)
5th delivery pipe of high pressure vapor propylene product described in transport portion, be connected to the compressor (2) for transport portion institute
State the 6th delivery pipe of high pressure vapor propylene product and for liquid propylene to be delivered to the 7th defeated of the propylene tower II (1-2)
Pipe is sent, the condenser for the high pressure vapor propylene product to be cooled to liquid propylene is provided in the 6th delivery pipe,
The 5th delivery pipe is connected at the top of the propylene refrigerant collecting tank (4), bottom is respectively connected to the 6th delivery pipe
With the 7th delivery pipe.
6. the open type heat pump system of a kind of propylene refrigeration system and C3 knockout tower composition, feature exist according to claim 5
In the open type heat pump system further includes the compressor suction tank (7) that top is equipped with demister, for from the propylene tower
II (1-2) overhead product carries out gas-liquid separation to provide gas-phase feed for the compressor (2).
7. the open type heat pump system of a kind of propylene refrigeration system and C3 knockout tower composition, feature exist according to claim 6
In the compressor suction tank (7) is connected to the first delivery pipe for conveying the high pressure vapor propylene product by pipeline, is used for
Stablize the internal pressure of the compressor suction tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328485.7U CN208975196U (en) | 2018-08-16 | 2018-08-16 | A kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328485.7U CN208975196U (en) | 2018-08-16 | 2018-08-16 | A kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition |
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| Publication Number | Publication Date |
|---|---|
| CN208975196U true CN208975196U (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821328485.7U Active CN208975196U (en) | 2018-08-16 | 2018-08-16 | A kind of open type heat pump system of propylene refrigeration system and C3 knockout tower composition |
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| CN (1) | CN208975196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797147A (en) * | 2022-05-16 | 2022-07-29 | 湖南中创化工股份有限公司 | Method and device for recovering tail gas of isopropyl acetate refining tower |
-
2018
- 2018-08-16 CN CN201821328485.7U patent/CN208975196U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797147A (en) * | 2022-05-16 | 2022-07-29 | 湖南中创化工股份有限公司 | Method and device for recovering tail gas of isopropyl acetate refining tower |
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