High-purity ammon steel cylinder/tank car raffinate batch processing system
Technical field
The utility model relates to field of gas treatment, and in particular to the processing system of high-purity liquefied ammonia packing material raffinate.
Background technique
High-purity ammonia gas is widely used in the industries such as LED, day sun energy, is grown rapidly in recent years.
High-purity liquefied ammonia is packed using steel cylinder and groove tank, and the purity requirement of high-purity ammon is higher and higher in recent years, and high-purity ammon steel cylinder/
Tank car is before charging operation, it is necessary to so that internal gas reaches certain quality standard and just can guarantee the purity for filling rear product,
Therefore, it must assure that be effectively addressed inside steel cylinder/tank car before operation and reach the standard of filling.In addition, packing material belongs to pressure
Container, it is necessary to it carries out filling before and after look and regular annual test, it, must before annual test/maintenance activity for the safety for ensuring use process
Harmless treatment must be carried out to packing material inside.
Currently, there is no reliable device and system in the processing of high-purity ammon packing material in industry.And use current note
The modes such as water, in line handle the requirement that can no longer meet environmental protection, safety and quality inside packing material.Therefore, there is an urgent need to one
Plant the growth requirement that efficient, environmental protection, the processing system of high-quality and method match current technology.
Utility model content
The purpose of this utility model: proposing a kind of high-purity ammon steel cylinder/tank car raffinate batch processing system, and matching is right at present
The demand and steel cylinder of high-purity ammon quality/tank car annual test maintenance requirements.
The purpose of this utility model can be realized by the following technical scheme: a kind of high-purity ammon steel cylinder/tank car raffinate batch
Processing system, including raffinate recovery pipe, vent gas treatment pipeline, high-purity ammon gas source pipeline, vacuum line, analysis of pipeline, nitrogen
Pipeline, helium pipeline, gas phase general pipeline, liquid phase general pipeline, which is characterized in that the vacuum line outer end is connected with vacuum pump, described
Analysis of pipeline outer end is connected with gas analyzer, and the nitrogen pipeline outer end is connected with nitrogen cylinder, and helium pipeline outer end connects
It is connected to helium tank, raffinate recovery pipe outer end is connected with recycling can, and vent gas treatment pipeline outer end is connected with spray absorber, high-purity
Ammonia source capsule road outer end is connected with ammonia bottle, the vacuum line, analysis of pipeline, nitrogen pipeline, helium pipeline, vent gas treatment pipe
Road, high-purity ammon gas source pipeline are connected with gas phase general pipeline, and gas phase general pipeline connects out several gas phases by three-way connection and is in charge of,
Gas phase, which is in charge of, is provided with gas phase sub-valve and gas phase is in charge of port and is connected with steel cylinder/tank car gas phase interface, and the raffinate returns
Closed tube road is connected with liquid phase general pipeline, and liquid phase general pipeline connects out several liquid phases through three-way connection and is in charge of, and liquid phase, which is in charge of, to be provided with
Liquid phase sub-valve and liquid phase are in charge of port and are connected with steel cylinder/tank car liquid phase interface, the total tube end of gas phase and the total tube end of liquid phase
Between by cross over pipe connect, cross over pipe be equipped with connection valve.
This high-purity ammon steel cylinder/tank car raffinate batch processing system had both been able to achieve the raffinate processing in steel cylinder/tank car is clean
And recycle, and empty steel cylinder/tank car inside can be carried out filling pre-treatment, reach steel cylinder/tank car internal environment and fills
Qualified index before ammonia.
Further, the gas phase general pipeline is equipped with first pressure sensor, is respectively arranged with second pressure on liquid phase general pipeline
Sensor.
Further, the raffinate recovery pipe is equipped with raffinate valve, and vent gas treatment pipeline is equipped with tail gas valve, high-purity
Ammonia source capsule road is equipped with ammonia valve.
Further, the vacuum line is equipped with vacuum valve, and analysis of pipeline is equipped in analysis valve, nitrogen pipeline
Equipped with nitrogen valve, helium tube road is equipped with helium valves.
Further, gas phase interface and liquid phase interface are provided on the steel cylinder/tank car, gas phase interface passes through hose and gas
Mutually it is in charge of connected, liquid phase interface, which is in charge of by hose with liquid phase, to be connected.
A kind of high-purity ammon steel cylinder/tank car raffinate batch processing method, which is characterized in that specific step is as follows:
S1: opening the nitrogen valve in nitrogen pipeline, opens the connection between gas phase general pipeline and liquid phase general pipeline on cross over pipe
Valve observes the pressure registration of first pressure sensor to 5-10psi;
S2: the gas phase sub-valve that gas phase is in charge of is opened, operation, steel cylinder/tank car gas are taken under micro- nitrogen state
Phase connector is in charge of with gas phase by hose and is connected;
S3: the liquid phase sub-valve that liquid phase is in charge of is opened, operation, steel cylinder/tank car are taken under micro- nitrogen state
Liquid phase connector is in charge of with liquid phase by hose and is connected;
S4: adjusting nitrogen flow, the pressure registration of first pressure sensor and second pressure sensor is observed, when pressure exists
The nitrogen valve in nitrogen pipeline is closed when 90-100psi;
S5: the tail gas valve on opening vent gas treatment pipeline, observation first pressure sensor and second pressure sensor
Pressure registration is to 1-5psi;
S6: repeating S4 and S5 step 80 time, completes blowing pipeline operation;
S7: opening the vacuum valve on vacuum line, and pipeline vacuumizes, and observes first pressure sensor and second pressure passes
The pressure registration of sensor extremely -15psi;
S8: the vacuum valve on vacuum line is closed, stops vacuumizing.
S9: opening the helium valves of helium tube road, observes the pressure of first pressure sensor and second pressure sensor
Registration closes helium valves, pressure maintaining 30min to 150-200psi;
S10: after pressure maintaining passes through, opening the tail gas valve on vent gas treatment pipeline, carries out pressure release, observation first pressure sensing
The pressure registration of device and second pressure sensor closes tail gas valve to 1-5psi;
S11: repeating step S7 and S8, carries out pipeline and vacuumizes;
S12: opening the raffinate valve in raffinate recovery pipe, opens steel cylinder/tank car liquid phase sub-valve, steel cylinder/tank car
Interior raffinate is recycled to recycling can through raffinate recovery pipe, and during liquid, the pressure and second pressure that need to pay close attention to recycling can are passed
The pressure of sensor guarantees that the pressure of second pressure sensor is higher than recycling can at least 2Bar;
S13: by observation steel cylinder/tank car weight and pressure change, determine that raffinate recycling is completed;Close steel cylinder/tank car
Liquid phase sub-valve closes the raffinate valve in raffinate recovery pipe;
S14: opening the analysis valve on analysis of pipeline, opens steel cylinder/tank car gas phase sub-valve, gas analyzer is to steel
Bottle/tank car internal gas is analyzed;
S15: analysis reaches high-purity ammon steel cylinder/tank car component requirements, i.e., qualification can be filled inside proof steel cylinder/tank car
Dress closes analysis valve;
S16: if analysis component is unqualified, the ammonia valve of high-purity ammon gas source pipe road is opened, observation first pressure passes
Sensor closes ammonia valve, opens the tail gas valve on vent gas treatment pipeline, observe first pressure sensor to 90-110psi
To 10-20psi;
S17: according to case analysis situation is not conformed to, determining the number of repetition of step 16, after repetitive operation, progress step S14,
S15。
Further, S1-S11, S16-S17 are central control system setting, are automatically performed.
Further, the raffinate recovery pipe connection is recycling can, and recycling can has freezing water leg, it is ensured that recycling
Tank is in low-pressure state.
Further, the connection of vent gas treatment pipeline outer end is spray absorber, can carry out tail gas clean-up and return
It receives.
Further, the gas analyzer of analysis of pipeline outer end connection, analysis group point include: water, oxygen, nitrogen,
Hydrogen, carbon monoxide, carbon dioxide, methane.
Compared with prior art, the utility model has the effect of positive:
Multiple steel cylinders/tank car batch processed may be implemented in this high-purity ammon steel cylinder/tank car raffinate batch processing system and method,
Not only it had been able to achieve raffinate high-efficiency cleaning in steel cylinder/tank car to recycle, but also empty steel cylinder/tank car inside can be carried out filling pre-treatment,
So that steel cylinder/tank car internal environment reaches the qualified index before filling ammonia, it is ensured that product quality continues 7N (99.99999%).
In addition, set of system can realize raffinate recycling and fill outside pre-treatment, the innoxious place before can also realizing tank car/steel cylinder annual test
Reason, so that steel cylinder/tank car requires before reaching annual test.
Detailed description of the invention
Fig. 1 is this high-purity ammon steel cylinder/tank car raffinate batch processing system structural schematic diagram.
In figure, 1, raffinate recovery pipe;2, vent gas treatment pipeline;3, high-purity ammon gas source pipeline;4, vacuum line;5, it analyzes
Pipeline;6, nitrogen pipeline;7, helium pipeline;8, gas phase general pipeline;9, liquid phase general pipeline;10, vacuum pump;11, gas analyzer;12,
Nitrogen cylinder;13, helium tank;14, recycling can;15, spray absorber;16, ammonia bottle;17, three-way connection;18, gas phase is in charge of;
19, gas phase sub-valve;20, liquid phase is in charge of;21, liquid phase sub-valve;22, cross over pipe;23, connection valve;24, first pressure senses
Device;25, second pressure sensor;26, raffinate valve;27, tail gas valve;28, ammonia valve;29, vacuum valve;30, it analyzes
Valve;31, nitrogen valve;32, helium valves;33, steel cylinder/tank car.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
A kind of high-purity ammon steel cylinder/tank car raffinate batch processing system, including raffinate recovery pipe 1, vent gas treatment pipeline 2,
High-purity ammon gas source pipeline 3, vacuum line 4, analysis of pipeline 5, nitrogen pipeline 6, helium pipeline 7, gas phase general pipeline 8, liquid phase general pipeline 9,
4 outer end of vacuum line is connected with vacuum pump 10, and 5 outer end of analysis of pipeline is connected with gas analyzer 11, the nitrogen
6 outer end of pipeline is connected with nitrogen cylinder 12, and 7 outer end of helium pipeline is connected with helium tank 13, the connection of 1 outer end of raffinate recovery pipe
There is recycling can 14,2 outer end of vent gas treatment pipeline is connected with spray absorber 15, and 3 outer end of high-purity ammon gas source pipeline is connected with ammonia
Bottle 16, the vacuum line 4, analysis of pipeline 5, nitrogen pipeline 6, helium pipeline 7, vent gas treatment pipeline 2, high-purity ammon gas source pipeline
3 are connected with gas phase general pipeline 8, and gas phase general pipeline 8 connects out several gas phases by three-way connection 17 and is in charge of 18, and gas phase is in charge of 18
On be provided with gas phase sub-valve 19 and gas phase is in charge of 18 ports and is connected with the gas phase interface of steel cylinder/tank car 33, the raffinate recycling
Pipeline 1 is connected with liquid phase general pipeline 9, and liquid phase general pipeline 9 connects out several liquid phases through three-way connection 17 and is in charge of 20, and liquid phase is in charge of on 20
Be provided with liquid phase sub-valve 21 and liquid phase be in charge of 20 ports and be connected with the liquid phase interface of steel cylinder/tank car 33,8 end gas phase general pipeline with
It is connected between 9 end liquid phase general pipeline by cross over pipe 22, cross over pipe 22 is equipped with connection valve 23.
Further, the gas phase general pipeline 8 is equipped with first pressure sensor 24, is respectively arranged with second on liquid phase general pipeline 9
Pressure sensor 25.
Further, the raffinate recovery pipe 1 is equipped with raffinate valve 26, and vent gas treatment pipeline 2 is equipped with tail gas valve
27, high-purity ammon gas source pipeline 3 is equipped with ammonia valve 28.
Further, the vacuum line 4 is equipped with vacuum valve 29, and analysis of pipeline 5 is equipped with analysis valve 30, nitrogen
Pipeline 6 is equipped with nitrogen valve 31, and helium pipeline 7 is equipped with helium valves 32.
Further, be provided with gas phase interface and liquid phase interface on the steel cylinder/tank car 33, gas phase interface by hose with
Gas phase is in charge of 18 and is connected, and liquid phase interface is in charge of 20 with liquid phase by hose and is connected.
A kind of high-purity ammon steel cylinder/tank car raffinate batch processing method, the specific steps are as follows:
S1: opening the nitrogen valve 31 in nitrogen pipeline 6, opens between gas phase general pipeline 8 and liquid phase general pipeline 9 on cross over pipe 22
Connection valve 23, observe the pressure registration of first pressure sensor 24 to 5-10psi;
S2: it opens gas phase and is in charge of the gas phase sub-valve 19 on 18, operation, steel cylinder/slot are taken under micro- nitrogen state
The gas phase connector of vehicle 33 is in charge of 18 with gas phase by hose and is connected;
S3: it opens liquid phase and is in charge of the liquid phase sub-valve 21 on 20, operation, steel cylinder/slot are taken under micro- nitrogen state
The liquid phase connector of vehicle 33 is in charge of 20 with liquid phase by hose and is connected;
S4: adjusting nitrogen flow, observes the pressure registration of first pressure sensor 24 and second pressure sensor 25, works as pressure
Power closes the nitrogen valve 31 in nitrogen pipeline 6 in 90-100psi;
S5: opening the tail gas valve 27 on vent gas treatment pipeline 2, observes first pressure sensor 24 and second pressure sensing
The pressure registration of device 25 is to 1-5psi;
S6: repeating S4 and S5 step 80 time, completes blowing pipeline operation;
S7: opening the vacuum valve 29 on vacuum line 4, and pipeline vacuumizes, and observes first pressure sensor 24 and second
The pressure registration of pressure sensor 25 extremely -15psi;
S8: the vacuum valve 29 on vacuum line 4 is closed, stops vacuumizing.
S9: opening the helium valves 32 on helium pipeline 7, observes first pressure sensor 24 and second pressure sensor 25
Pressure registration to 150-200psi, close helium valves 32, pressure maintaining 30min;
S10: after pressure maintaining passes through, the tail gas valve 27 on vent gas treatment pipeline 2 is opened, carries out pressure release, observes first pressure
The pressure registration of sensor 24 and second pressure sensor 25 closes tail gas valve 27 to 1-5psi;
S11: repeating step S7 and S8, carries out pipeline and vacuumizes;
S12: opening the raffinate valve 26 in raffinate recovery pipe 1, opens the liquid phase sub-valve 21 of steel cylinder/tank car 33, steel
Raffinate in bottle/tank car 33 is recycled to recycling can 14 through raffinate recovery pipe 1, during liquid, need to pay close attention to the pressure of recycling can 14
The pressure of power and second pressure sensor 25 guarantees that the pressure of second pressure sensor 25 is higher than at least 2Bar of recycling can 14;
S13: by observation 33 weight of steel cylinder/tank car and pressure change, determine that raffinate recycling is completed;Close steel cylinder/tank car
33 liquid phase sub-valve 21 closes the raffinate valve 26 in raffinate recovery pipe 1;
S14: opening the analysis valve 30 on analysis of pipeline 5, opens the gas phase sub-valve 19 of steel cylinder/tank car 33, gas point
Analyzer 11 analyzes 33 internal gas of steel cylinder/tank car;
S15: analysis reaches high-purity ammon steel cylinder/tank car 33 component requirements, i.e. proof 33 inside qualification of steel cylinder/tank car can be into
Row fills, and closes analysis valve 30;
S16: if analysis component is unqualified, the ammonia valve 28 on high-purity ammon gas source pipeline 3 is opened, observes first pressure
Sensor 24 closes ammonia valve 28, opens the tail gas valve 27 on vent gas treatment pipeline 2, the first pressure of observation to 90-110psi
Force snesor 24 is to 10-20psi;
S17: according to case analysis situation is not conformed to, determining the number of repetition of step 16, after repetitive operation, progress step S14,
S15。
Further, S1-S11, S16-S17 are central control system setting, are automatically performed.
Further, the connection of raffinate recovery pipe 1 is recycling can 14, and recycling can 14 has freezing water leg, really
It protects recycling can 14 and is in low-pressure state.
Further, 2 outer end of the vent gas treatment pipeline connection is spray absorber 15, can be carried out to tail gas clean-up
And it recycles.
Further, the gas analyzer 11 of 5 outer end of the analysis of pipeline connection, analysis group point includes: water, oxygen, nitrogen
Gas, hydrogen, carbon monoxide, carbon dioxide, methane.
If steel cylinder/tank car 33 will carry out annual test or maintenance:
S1-S13 is same as described above;
S14: opening the valve in nitrogen pipeline 6, opens the valve on gas phase general pipeline 8, observation observation first pressure
Sensor 24 closes nitrogen valve 31, opens the tail gas valve 27 on vent gas treatment pipeline 2, the first pressure of observation to 90-120psi
Force snesor 24 is to 10-20psi;
S15: it repeats aforesaid operations 3-10 times;
S16: opening the port valve on gas phase general pipeline 8, detected with portable gas alarm device, then can be into after qualified
Row can opening annual test.