CN208779766U - Propylene recovery unit and refrigeration recovery system - Google Patents
Propylene recovery unit and refrigeration recovery system Download PDFInfo
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- CN208779766U CN208779766U CN201821477822.9U CN201821477822U CN208779766U CN 208779766 U CN208779766 U CN 208779766U CN 201821477822 U CN201821477822 U CN 201821477822U CN 208779766 U CN208779766 U CN 208779766U
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- propylene
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Abstract
The utility model provides a kind of propylene recovery unit and refrigeration recovery system, is related to chemical technology field, solves the technical issues of lacking the device that can recycle the propylene refrigeration agent for becoming gas phase in propylene refrigeration system.The device includes compressor and storage tank, the number of the compressor is at least one and the compressor is connected with the corresponding storage tank, the coupled storage tank of the compressor forms a recycling storage unit and each recycling storage unit is connected with propylene refrigeration system, when the recycling storage unit and the propylene refrigeration system are in connected state, the propylene that the compression function of the recycling storage unit in connected state drives the propylene refrigeration system to be recycled is flow in the corresponding storage tank.The utility model is used for the recycling of propylene.
Description
Technical field
The utility model relates to chemical technology fields, more particularly, to a kind of propylene recovery unit and there is the propylene to return
Receiving apparatus refrigeration recovery system.
Background technique
Propylene is also very small because having good thermodynamic behaviour and its greenhouse effects, the real refrigerant for belonging to current environmental protection,
And propylene refrigeration system just uses propylene as refrigerant.
Propylene refrigeration system includes the level Four centrifugal compressor of steam turbine driving, in the actual production process propylene
Sufficiently low temperature and pressure are needed when refrigeration system starting up, otherwise will be so that quantity of steam increases when being switched on, together
When system generate axial displacement and seismism be also difficult to control, cause to cannot be started up success.Therefore it is opened in propylene refrigeration system
It needs to supplement the agent of liquid phase propylene refrigeration into propylene refrigeration system before machine, realization drop of absorbing heat using liquid propylene when becoming gas phase
Temperature, so that propylene refrigeration system initial temperature, pressure reach booting and requires.But it would generally for the propylene refrigeration agent for becoming gas phase
It is handled by way of arranging torch, causes huge waste.
Applicants have discovered that at least there is following technical problem in the prior art:
Lack the device that the propylene refrigeration agent for becoming gas phase can be recycled in propylene refrigeration system, leads to the wave of resource
Take.
Utility model content
The purpose of this utility model is to provide a kind of propylene recovery unit and refrigeration recovery systems, to solve the prior art
Present in lack in propylene refrigeration system and can will become the device technique problem that the propylene refrigeration agent of gas phase recycles.This reality
The many technical effects elaboration as detailed below that can be generated with the optimal technical scheme in many technical solutions of novel offer.
To achieve the above object, the utility model provides following technical scheme:
A kind of propylene recovery unit provided by the utility model, including compressor and storage tank, wherein
The number of the compressor is at least one and the compressor is connected with the corresponding storage tank, the pressure
The coupled storage tank of contracting machine form a recycling storage unit and each recycling storage unit with propylene system
Cooling system is connected, and when the recycling storage unit is in connected state with the propylene refrigeration system, is in connected state
The compression function propylene that drives the propylene refrigeration system to be recycled of the recycling storage unit flow to corresponding described deposit
In storage tank；
Preferably, the number of the recycling storage unit is two, at most a recycling storage unit and described third
Alkene refrigeration system is in connected state；
Preferably, it is described recycling storage unit the storage tank be spherical tank, it is another it is described recycling storage unit it is described
Storage tank is cryogenic tank；
Preferably, it includes at least one described storage tank that the storage tank, which is the recycling storage unit of spherical tank, and should
All storage tanks of the recycling storage unit can be connected with the compressor for recycling storage unit described in this；
Preferably, it is military cold compressor that the storage tank, which is the compressor of the recycling storage unit of spherical tank,；Institute
The compressor for stating the recycling storage unit that storage tank is cryogenic tank is BOG compressor；
Preferably, the propylene recovery unit further includes the purity detecting device to detect purified propylene to be recycled；
Preferably, it is provided with control valve on the recycling storage unit pipeline to be connect with the propylene refrigeration system,
The control valve is connected with the purified propylene detection device, the Reinheitszahl for the propylene that the purity detecting device can will test
From the comparison of the standard purity value of storage inside and energy control the opening and closing of the different control valves according to comparing result；
The preferably described standard purity value is 99.6%, when the purified propylene value of purity detecting device detection is not less than
The standard purity value, propylene to be recycled flow to the recycling storage unit；When purity detecting device detection
Purified propylene value is less than the standard purity value, and propylene to be recycled flow to another recycling storage unit；
Preferably, the propylene recovery unit is connected with the propylene refrigeration system by pipeline, the propylene recovery
The position that device is connected with the propylene refrigeration system is located at the surge tank and the propylene refrigeration of the propylene refrigeration system
On pipeline between the centrifugal compressor of system；
A kind of refrigeration recovery system, including the propylene recovery unit, the propylene refrigeration system and the propylene are returned
Receiving apparatus is connected.
A kind of propylene recovery unit provided by the utility model, including compressor and storage tank, can be by third by compressor
Become gaseous propylene in alkene refrigeration system to detach into storage tank, so that the propylene after recycling recycles, solve existing
There is the device technique problem that lacks in propylene refrigeration system in technology and the propylene refrigeration agent for becoming gas phase can be recycled.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of propylene recovery unit provided by the embodiment of the utility model.
1, centrifuge in figure；2, valve；3, surge tank；4, military cold compressor；5, spherical tank；6, BOG compressor；7, low temperature
Tank.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Referring to Fig. 1, a kind of propylene recovery unit provided by the utility model, including compressor and storage tank, wherein compression
The number of machine is at least one and compressor is connected with corresponding storage tank, and the coupled storage tank of compressor forms one
It recycles storage unit and each recycling storage unit is connected with propylene refrigeration system, when recycling storage unit and propylene refrigeration
When system is in connected state, the compression function driving propylene refrigeration system of the recycling storage unit in connected state is to be recycled
Propylene flow in corresponding storage tank, using compressor can by become in propylene refrigeration system gas phase propylene pass through pipeline take out
System is separated out, cooperation storage tank, which uses, to achieve the purpose that recycling storage for the gas-phase propene indentation storage tank that compressor detaches,
Solves the dress that lacks in propylene refrigeration system existing in the prior art and the propylene refrigeration agent for becoming gas phase can be recycled
Set technical problem
Optionally embodiment, the number for recycling storage unit is two, at most one recycling storage unit and third
Alkene refrigeration system is in connected state.During Propylene recovery, standard purity is not achieved in the purity that may have propylene
It is required that, at this point it is possible to which the propylene that not up to standard purity requires is passed through a recycling storage unit；When the purity of propylene reaches
When requiring to standard purity, propylene can be passed through to another recycling storage unit, convenient for the recycling to propylene.One recycling
The storage tank of storage unit can be spherical tank 5, and the storage tank of another recycling storage unit is can be with cryogenic tank 7, when storage tank is
When spherical tank 5, the propylene that purified propylene is not up to standard requirements can store, in addition, storage tank is the recycling storage unit of spherical tank 5
Including at least one storage tank, and all storage tanks of the recycling storage unit can be with the compressor phase of the recycling storage unit
Connection, spherical tank save under the tangible room temperature differential pressure of propylene, and amount of storage is limited, and multiple spherical tanks may be needed to use during recycling propylene
To store the gas-phase propene of recycling；When storage tank is 5 cryogenic tank 7 of spherical tank, it can store purified propylene and reach standard requirements
Propylene.Storage tank is that the compressor of the recycling storage unit of spherical tank 5 can be military cold compressor 4；Storage tank is returning for cryogenic tank 7
The compressor for receiving and keeping storage unit can be BOG compressor 6.
Optionally embodiment, propylene recovery unit further include the purity detecting to detect purified propylene to be recycled
Device.The quality of propylene depends on the purity of propylene, and setting purity test device may make propylene recovery unit to detect propylene
Purity and acquired using different device, embody various collectivity of device.Purity detecting device can detecte surge tank
The purity of inner propene, and then determine that propylene to be recycled should be flowed into spherical tank 5 or be flowed into cryogenic tank 7.Purity detecting device
Following design method can also be used: being provided with control valve 2 on the recycling storage unit pipeline to be connect with propylene refrigeration system,
Control valve 2 is connected with purified propylene detection device, the Reinheitszahl and storage inside of the propylene that purity detecting device can will test
The comparison of standard purity value and the opening and closing of different control valves 2 can be controlled according to comparing result.Standard purity value is
99.6%, when the purified propylene value of purity detecting device detection is not less than standard purity value, propylene to be recycled flow to one and returns
It receives and keeps storage unit (being recycled in cryogenic tank 7)；When the purified propylene value of purity detecting device detection is less than standard purity value, wait return
The propylene of receipts flow to another recycling storage unit (being recycled in spherical tank 5).
Optionally embodiment, referring to Fig. 1, propylene recovery unit is connected with propylene refrigeration system by pipeline,
The position that propylene recovery unit is connected with propylene refrigeration system is located at the surge tank 3 and propylene refrigeration system of propylene refrigeration system
Centrifugal compressor 1 between pipeline on.
A kind of propylene recovery method using propylene recovery unit Propylene recovery, propylene recovery method includes the following contents:
Connection recycling storage unit and propylene refrigeration system, start compressor, so that driven compressor propylene refrigeration system is to be recycled
Propylene is flow in storage tank.
Propylene recovery method specifically includes the following contents: the purity of propylene to be recycled is detected using purity detecting device
Value, when the Reinheitszahl of detection is less than 99.6%, connection propylene refrigeration system and storage tank are the recycling storage unit of spherical tank, are opened
It uses force cold compressor, so that military cold compressor driving propylene refrigeration system propylene to be recycled is flow in spherical tank；It is pure when detection
When angle value is not less than 99.6%, the recycling storage unit of connection propylene refrigeration system and storage tank for cryogenic tank, starting BOG compression
Machine, so that BOG driven compressor propylene refrigeration system propylene to be recycled is flow in cryogenic tank；Real-time monitoring propylene refrigeration system
Pressure value, when the pressure value of propylene refrigeration system reaches predetermined value, close compressor, while cut off recycling storage unit with
Access between propylene refrigeration system.
Embodiment 1:
A kind of propylene recovery unit, including two recycling storage units, at most one recycling storage unit and propylene refrigeration
System is in connected state, and one of recycling storage unit includes military cold compressor 4 and spherical tank 5, another recycling storage is single
Member include BOG compressor 6 and cryogenic tank 7, military cold compressor 4 be connected with surge tank 3 and force cold compressor 4 can drive it is to be recycled
Propylene flow to spherical tank 5；Cryogenic tank 7 is connected with surge tank 3, and BOG compressor 6 is connected with cryogenic tank 7, BOG compressor 6 with
Surge tank 3 is connected and BOG compressor 6 can drive propylene to be recycled to flow to cryogenic tank 7.
Embodiment 2:
A kind of refrigeration recovery system, including the propylene recovery unit that propylene refrigeration system and embodiment 1 describe, propylene refrigeration
System is connected with propylene recovery unit.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
Anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation or replace
It changes, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with claim
Subject to protection scope.
Claims (10)
1. a kind of propylene recovery unit, which is characterized in that including compressor and storage tank, wherein
The number of the compressor is at least one and the compressor is connected with the corresponding storage tank, the compressor
The coupled storage tank form a recycling storage unit and each recycling storage unit with propylene refrigeration system
System is connected, when the recycling storage unit is in connected state with the propylene refrigeration system, the institute in connected state
The propylene that the compression function for stating recycling storage unit drives the propylene refrigeration system to be recycled flow to the corresponding storage tank
It is interior.
2. propylene recovery unit according to claim 1, which is characterized in that the number of the recycling storage unit is two
A, at most a recycling storage unit and the propylene refrigeration system are in connected state.
3. propylene recovery unit according to claim 1 or 2, which is characterized in that the institute of a recycling storage unit
Stating storage tank is spherical tank (5), and the storage tank of another recycling storage unit is cryogenic tank (7).
4. propylene recovery unit according to claim 3, which is characterized in that the storage tank is described time of spherical tank (5)
Receiving and keeping storage unit includes at least one described storage tank, and all storage tanks of the recycling storage unit can be with this
The compressor of the recycling storage unit is connected.
5. propylene recovery unit according to claim 3, which is characterized in that the storage tank is described time of spherical tank (5)
The compressor for receiving and keeping storage unit is military cold compressor (4)；The storage tank is the recycling storage unit of cryogenic tank (7)
The compressor be BOG compressor (6).
6. propylene recovery unit according to claim 1, which is characterized in that the propylene recovery unit further includes to examine
Survey the purity detecting device of purified propylene to be recycled.
7. propylene recovery unit according to claim 6, which is characterized in that the recycling storage unit and the propylene system
It is provided on cooling system pipeline to be connected control valve (2), the control valve (2) is connected with the purified propylene detection device
It connects, the standard purity value comparison of the Reinheitszahl of the propylene that the purity detecting device can will test and storage inside simultaneously can be according to right
The opening and closing of the different control valves (2) are controlled than result.
8. propylene recovery unit according to claim 6, which is characterized in that the standard purity value is 99.6%, works as institute
The purified propylene value of purity detecting device detection is stated not less than the standard purity value, propylene to be recycled flow to one described in return
Receive and keep storage unit；When the purified propylene value of purity detecting device detection is less than the standard purity value, propylene to be recycled
It flow to another recycling storage unit.
9. propylene recovery unit according to claim 1, which is characterized in that the propylene recovery unit and the propylene system
Cooling system is connected by pipeline, and the position that the propylene recovery unit is connected with the propylene refrigeration system is located at described third
On pipeline between the surge tank (3) of alkene refrigeration system and the centrifugal compressor (1) of the propylene refrigeration system.
10. a kind of refrigeration recovery system, which is characterized in that including any one of propylene refrigeration system and claim 1-9 institute
The propylene recovery unit stated, the propylene refrigeration system are connected with the propylene recovery unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477822.9U CN208779766U (en) | 2018-09-10 | 2018-09-10 | Propylene recovery unit and refrigeration recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477822.9U CN208779766U (en) | 2018-09-10 | 2018-09-10 | Propylene recovery unit and refrigeration recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208779766U true CN208779766U (en) | 2019-04-23 |
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ID=66160505
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821477822.9U Active CN208779766U (en) | 2018-09-10 | 2018-09-10 | Propylene recovery unit and refrigeration recovery system |
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| Country | Link |
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| CN (1) | CN208779766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917244A (en) * | 2018-09-10 | 2018-11-30 | 天津渤海石化有限公司 | Propylene recovery unit and propylene recovery method |
-
2018
- 2018-09-10 CN CN201821477822.9U patent/CN208779766U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917244A (en) * | 2018-09-10 | 2018-11-30 | 天津渤海石化有限公司 | Propylene recovery unit and propylene recovery method |
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