CN206940431U - Carbon molecular sieve swing adsorption nitrogen producing apparatus - Google Patents
Carbon molecular sieve swing adsorption nitrogen producing apparatus Download PDFInfo
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- CN206940431U CN206940431U CN201720829369.2U CN201720829369U CN206940431U CN 206940431 U CN206940431 U CN 206940431U CN 201720829369 U CN201720829369 U CN 201720829369U CN 206940431 U CN206940431 U CN 206940431U
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Abstract
The utility model discloses a kind of carbon molecular sieve swing adsorption nitrogen producing apparatus, including controlling organization and screw air compressor, air cushioning tank, freeze drier, nitrogen producing device and nitrogen storage tank, the nitrogen producing device includes the filter of two-stage series connection, two adsorption tanks being arranged in parallel and a nitrogen buffer tank, the output end that the input of first filter passes through pipeline communication freeze drier, the output end of second filter is respectively communicated with the air inlet of two adsorption tanks by pipeline and switching mechanism, the input of the nitrogen gas outlet connection nitrogen buffer tank of two adsorption tanks, the input of the output end connection nitrogen storage tank of nitrogen buffer tank；Controlling organization includes DCS controllers, and the input of DCS controllers connects oxygen content monitor and pressure sensor respectively, and the output end of DCS controllers distinguishes the controlled end of each valve in attachment means.The utility model can on the basis of the nitrogen gas purity for ensureing production is higher, realize nitrogen it is continuous, stably, automatic production.
Description
Technical field
Technical field of air separation is the utility model is related to, particularly a kind of nitrogen preparation facilities.
Background technology
Solid material used in chemical process, it usually needs being crushed to certain particle diameter could use.For example, big
Majority has in the chemical reaction process that solid particle participates in, and reduces grain diameter, it is possible to increase phase border contacts surface, improves reaction speed
Rate；In leaching operates, phase border contact surface can both have been increased by reducing particle diameter, can shorten material again in intragranular diffusion length,
Improve extraction velocity；In the production processes such as ceramics, cement, pigment, catalyst, agricultural chemicals, to obtain uniform solid mixture,
Various raw materials are first worn into fine powder；Etc..It is this that external force is applied to solid material, it is split into smaller particle, belong to
Operated in the unit of powder technology.
In solid crushing field, conventional solid grinding mode has impacting type and compaction type, no matter but which kind of crushing side
Formula, all generally existing material are crushing the shortcomings that heat is high in the cycle；Especially for the powder of combustible and explosive articles, such as sulphur
Broken, this conventional grinding mode just can not use.At present, the technique applied to production explosive material powder uses dry method ball mostly
Mill method, such a technique are protected during powder is produced by using nitrogen, can avoid the generation of explosion phenomenon.Cause
This necessarily involves the production of nitrogen during combustible and explosive articles powder is produced.But existing nitrogen production equipment
The most purity of nitrogen of production is not high, and needs manual control, and efficiency is low.
Utility model content
The utility model technical issues that need to address are to provide a kind of nitrogen-making device, can be pure in the nitrogen for ensureing production
On the basis of degree is higher, realize nitrogen it is continuous, stably, automatic production.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
Carbon molecular sieve swing adsorption nitrogen producing apparatus, including controlling organization and the screw air compressing that is sequentially communicated by pipeline
Machine, air cushioning tank, freeze drier, nitrogen producing device and nitrogen storage tank, the filter of the nitrogen producing device including two-stage series connection, two
The adsorption tanks being arranged in parallel and a nitrogen buffer tank, the input of wherein first filter are freeze-dried by pipeline communication
The output end of machine, the output end of the second filter are respectively communicated with the air inlet of two adsorption tanks by pipeline and switching mechanism,
The input of the nitrogen gas outlet connection nitrogen buffer tank of two adsorption tanks, the output end connection nitrogen storage tank of nitrogen buffer tank
Input；The controlling organization includes DCS controllers, and the input of DCS controllers is connected to nitrogen in monitoring device respectively
The oxygen content monitor of oxygen content and the pressure sensor for nitrogen pressure in detection means, the output end point of DCS controllers
The controlled end of each valve in other attachment means.
Above-mentioned carbon molecular sieve swing adsorption nitrogen producing apparatus, the carbon for separation of nitrogen and oxygen is provided with the adsorption tanks
Molecular sieve.
Above-mentioned carbon molecular sieve swing adsorption nitrogen producing apparatus, the switching mechanism include with DCS controller output ends connecting respectively
The inlet end balanced valve that connects, outlet side balanced valve, left adsorption tanks air inlet switch valve, left adsorption tanks nitrogen outlet switch valve, left suction
Attached tank oxygen outlet switch valve, right adsorption tanks air inlet switch valve, right adsorption tanks nitrogen outlet switch valve and right adsorption tanks oxygen go out
Mouth switch valve；
The inlet end of the left adsorption tanks air inlet switch valve and right adsorption tanks air inlet switch valve respectively with the second filter
Output end connects, and the outlet side of left adsorption tanks air inlet switch valve and right adsorption tanks air inlet switch valve is respectively communicated with left adsorption tanks and the right side
The air inlet of adsorption tanks；The inlet end balanced valve connects going out for left adsorption tanks air inlet switch valve and right adsorption tanks air inlet switch valve
Gas end；
The inlet end of the left adsorption tanks nitrogen outlet switch valve and right adsorption tanks nitrogen outlet switch valve is respectively communicated with a left side
The nitrogen gas outlet of adsorption tanks and right adsorption tanks, left adsorption tanks nitrogen outlet switch valve and right adsorption tanks nitrogen outlet switch valve
Outlet side is respectively communicated with the inlet end of nitrogen buffer tank, and outlet side balanced valve connects left adsorption tanks nitrogen outlet switch valve and right suction
The inlet end of attached tank nitrogen outlet switch valve；
The inlet end of the left adsorption tanks oxygen outlet switch valve and right adsorption tanks oxygen outlet switch valve is respectively communicated with a left side
The oxygen gas outlet of adsorption tanks and right adsorption tanks, left adsorption tanks oxygen outlet switch valve and right adsorption tanks oxygen outlet switch valve
Outlet side is respectively communicated with the inlet end of oxygen recovery tank.
Above-mentioned carbon molecular sieve swing adsorption nitrogen producing apparatus, the switching mechanism also include being separately positioned on left adsorption tanks and the right side
The controlled end of the first back-flushing valve, the second back-flushing valve of absorption upper end, the first back-flushing valve and the second back-flushing valve connects DCS controls respectively
The output end of device processed.
As a result of above technical scheme, technological progress acquired by the utility model is as follows.
The utility model can monitor the work shape of each equipment in process of production automatically by the setting of controlling organization
State, and the switch valve of relevant device can be controlled, with reference to the cooperation that two adsorption tanks pass through switching mechanism in nitrogen producing device
To realize the stabilization of nitrogen, continuous production.The nitrogen that the present invention monitors nitrogen producing device production by setting oxygen content monitor to be used for
Oxygen content, and by the working condition of controlling organization coordination other equipment, the nitrogen gas purity that may be such that and produce may be up to
99.9%, substantially increase the purity and production efficiency of nitrogen.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model.
Wherein：1. screw air compressor, 2. air cushioning tanks, 3. freeze driers, 4. nitrogen producing devices, 41. first filters,
42. the second filter, 43. left adsorption tanks, 44. right adsorption tanks, 45. nitrogen buffer tanks, 5. nitrogen storage tanks；
P1-P5. first pressure sensor is to the 5th pressure sensor, the relief valves of X1-X3. first to the 3rd relief valve, A.
Oxygen content detector, the back-flushing valves of F1-F2. first to the second back-flushing valve, J1. inlet end balanced valves, J2. outlet sides balanced valve, G1.
Left adsorption tanks air inlet switch valve, the left adsorption tanks nitrogen outlet switch valves of G2., the left adsorption tanks oxygen outlet switch valves of G3., G4. are right
Adsorption tanks air inlet switch valve, the right adsorption tanks nitrogen outlet switch valves of G5., the right adsorption tanks oxygen outlet switch valves of G6., K1. first
Switch valve, K2. second switch valves.
Embodiment
The utility model is further elaborated below in conjunction with the drawings and specific embodiments.
A kind of carbon molecular sieve swing adsorption nitrogen producing apparatus, for prepare produce protection nitrogen, its structure as shown in figure 1,
Screw air compressor 1, air cushioning tank 2, freeze drier 3, the nitrogen producing device 4 being sequentially communicated including controlling organization and by pipeline
With nitrogen storage tank 5；Wherein, nitrogen producing device 4 includes filter, two adsorption tanks being arranged in parallel and a nitrogen for two-stage series connection
Surge tank, the input of first filter 41 pass through the output end of pipeline communication freeze drier 3, the output of the second filter 42
End is respectively communicated with the inlet end of two adsorption tanks by pipeline and switching mechanism, and the outlet side connection nitrogen of two adsorption tanks delays
Rush the input of tank 45, the input of the output end connection nitrogen storage tank 5 of nitrogen buffer tank 45.
Controlling organization includes DCS controllers, first pressure sensor P1 to the 5th pressure sensor P5, oxygen content monitor
A, first switch valve K1 to second switch valve K2 and the first relief valve X1 to the 3rd relief valve X3；The input of DCS controllers
First pressure sensor P1 to the 4th pressure sensor P4 and oxygen content monitor A output end is connected respectively, DCS controllers
Output end distinguishes connecting valve mechanism and each switch valve, the controlled end of relief valve.
Wherein, first switch valve K1 is arranged on the pipeline between screw air compressor 1 and air cushioning tank 2, for controlling
The conveying of compressed air；Second switch valve K2 is arranged on the pipeline between nitrogen producing device 4 and nitrogen storage tank 5, for controlling nitrogen
Conveying.
First pressure sensor P1 and the first relief valve X1 are arranged on air cushioning tank 2, and first pressure sensor P1 is used
In the gas pressure of monitoring air cushioning tank, when the pressure value that first pressure sensor P1 is detected is more than setting value, DCS controls
Device processed can close first switch valve K1 and open the safety fortune that the first relief valve X1 on air cushioning tank ensures air cushioning tank 2
OK.
Second pressure sensor P2 and the first back-flushing valve F1 are arranged on left adsorption tanks, the 3rd pressure sensor P3 and second
Back-flushing valve F2 is arranged on right adsorption tanks, and the 4th pressure sensor P4 is arranged on nitrogen buffer tank, the 5th pressure sensor P5
It is arranged on nitrogen storage tank.Second pressure sensor is respectively used to measure the pressure of corresponding equipment to the 5th pressure sensor
Force value, when pressure value is more than setting value, first switch valve, second switch valve are closed, and open the second relief valve and the 3rd and let out
Pressure valve.
Oxygen content monitor A is arranged on nitrogen buffer tank, for monitoring the oxygen content of nitrogen in relevant device, further
The working condition of each equipment in nitrogen preparation system is adjusted by DCS controllers, is existed with the Control for Oxygen Content ensured in nitrogen
In the range of safety value.
In the present embodiment, Stress control in air cushioning tank, left adsorption tanks, right adsorption tanks and nitrogen buffer tank 0 ~
0.7Mpa, the Stress control in nitrogen storage tank is in 0 ~ 0.5Mpa；Oxygen content in nitrogen buffer tank is controlled in the range of 2 ~ 5%.
The switching mechanism of nitrogen producing device is equal including the first back-flushing valve F1, the second back-flushing valve F2, inlet end balanced valve J1, outlet side
Weigh valve J2, left adsorption tanks air inlet switch valve G1, left adsorption tanks nitrogen outlet switch valve G2, left adsorption tanks oxygen outlet switch valve
G3, right adsorption tanks air inlet switch valve G4, right adsorption tanks nitrogen outlet switch valve G5 and right adsorption tanks oxygen outlet switch valve G6.
Left adsorption tanks air inlet switch valve G1 and right adsorption tanks air inlet switch valve G4 inlet end respectively with the second filter
Output end connects, and left adsorption tanks air inlet switch valve G1 and right adsorption tanks air inlet switch valve G4 outlet side are respectively communicated with left adsorption tanks
With the air inlet of right adsorption tanks, for being sent into compressed air to be separated into adsorption tanks.Inlet end balanced valve J1 connects left suction
Attached canister incoming gas switch valve G1 and right adsorption tanks air inlet switch valve G4 outlet side, the pressure for balanced left adsorption tanks and right adsorption tanks
Power.
Left adsorption tanks nitrogen outlet switch valve G2 and right adsorption tanks nitrogen outlet switch valve G5 inlet end are respectively communicated with a left side
The nitrogen gas outlet of adsorption tanks and right adsorption tanks, left adsorption tanks nitrogen outlet switch valve G2 and right adsorption tanks nitrogen outlet switch valve
G5 outlet side is respectively communicated with the inlet end of nitrogen buffer tank, for the nitrogen prepared feeding nitrogen buffer tank to be delayed
Deposit.Outlet side balanced valve J2 connects left adsorption tanks nitrogen outlet switch valve G2 and right adsorption tanks nitrogen outlet switch valve G5 air inlet
End, the pressure for balanced left adsorption tanks and right adsorption tanks.
Left adsorption tanks oxygen outlet switch valve G3 and right adsorption tanks oxygen outlet switch valve G6 inlet end are respectively communicated with a left side
The oxygen gas outlet of adsorption tanks and right adsorption tanks, left adsorption tanks oxygen outlet switch valve G3 and right adsorption tanks oxygen outlet switch valve
G6 outlet side is respectively communicated with the inlet end of oxygen recovery tank.
First back-flushing valve F1 and the second back-flushing valve F2 is separately positioned on the top of left adsorption tanks and right adsorption tanks, for entering
When row oxygen discharges, reversely blown into adsorption tanks, in order to which by the oxygen in adsorption tanks, all release decompression is discharged into air
In.
Operation principle of the present utility model is：Air is after screw air compressor compresses, by air cushioning tank buffering, freezing
Enter nitrogen producing device after drying machine freeze-drying, first pass around filtering, then the switching mechanism in nitrogen producing device and two adsorption tanks associations
Operation is adjusted, completes the nitrogen oxygen separating of compressed air, ensures nitrogen stabilization, continuously through nitrogen buffer tank output end nitrogen storage tank
In.
The course of work of switching mechanism and two adsorption tanks is as described below in nitrogen producing device.
1）Left suction：DCS controllers control left adsorption tanks air inlet switch valve G1 and left adsorption tanks nitrogen outlet switch valve G2 to beat
Open, air enters in left adsorption tanks from after the output of the second filter through left adsorption tanks air inlet switch valve G1, left absorption pressure tank liter
Height, the oxygen molecule in compressed air are adsorbed the carbon molecular sieve absorption in tank, and nitrogen not to be adsorbed then rushes across carbon molecular sieve, warp
Cross left adsorption tanks nitrogen outlet switch valve G2 to be delivered in nitrogen buffer tank, this process is left suction；Original state bottom right adsorption tanks
Do not run.
2）Press：A left side is drawn through after journey terminates, and DCS controllers control left adsorption tanks air inlet switch valve G1 and left adsorption tanks nitrogen
Gate out switch valve G2 is closed, while inlet end balanced valve J1 and outlet side balanced valve J2 is opened, and makes left adsorption tanks and has adsorption tanks
Two parts up and down be respectively communicated with so that the pressure in two adsorption tanks reaches balanced, this process is presses.
3）Right suction：After pressure equalizing terminates, DCS controllers control inlet end balanced valve J1 and outlet side balanced valve J2 is closed
Close, while open right adsorption tanks air inlet switch valve G4 and right adsorption tanks nitrogen outlet switch valve G5, compressed air is through the second filtering
Enter right adsorption tanks after device filtering, right adsorption tanks pressure rise, the carbon molecular sieve in the adsorbed tank of oxygen molecule in compressed air
Absorption, nitrogen not to be adsorbed then rush across carbon molecular sieve, nitrogen buffering are delivered to by right adsorption tanks nitrogen outlet switch valve G5
In tank, this process is right suction.
4）Left desorption：During right inspiration row, DCS controllers control the first back-flushing valve F1 and left adsorption tanks oxygen outlet to open
Close valve G3 to open, make the back-blowing effect that rich poly- oxygen molecule conveys in the first back-flushing valve F1 on carbon molecular sieve in left adsorption tanks
Under, exported through left adsorption tanks oxygen outlet switch valve G3, this process is referred to as to desorb.
5）Press, after right suction terminates with left desorption process, DCS controllers close right adsorption tanks air inlet switch valve G4, right suction
Attached tank nitrogen outlet switch valve G5, the first back-flushing valve F1 and left adsorption tanks oxygen outlet switch valve G3, while it is equal to open inlet end
Weighed valve J1 and outlet side balanced valve J2, and the two parts up and down for making left adsorption tanks and having adsorption tanks are respectively communicated with, so that two absorption
Pressure in tank reaches balanced.
6）Left suction, with step 1）, in the process, right adsorption tanks carry out right desorption process；The control second of DCS controllers is anti-
Blow valve F2 and right adsorption tanks oxygen outlet switch valve G6 to open, make the oxygen molecule that richness is gathered on carbon molecular sieve in right adsorption tanks second
Under the back-blowing effect of back-flushing valve F2 conveyings, exported through right adsorption tanks oxygen outlet switch valve G6.
Repeat step 2）To step 6）, realize the continuous and stable production of nitrogen.
In the utility model, the G1-G8 switch valves of switching mechanism can be realized by three two-position five-way pilot solenoid valves
The left suction of nitrogen producing device, pressure, the right operation process inhaled, desorb, pressed.
Claims (4)
1. carbon molecular sieve swing adsorption nitrogen producing apparatus, it is characterised in that：It is sequentially communicated including controlling organization and by pipeline
Screw air compressor（1）, air cushioning tank（2）, freeze drier（3）, nitrogen producing device（4）And nitrogen storage tank（5）, the nitrogen producing device
（4）Filter including two-stage series connection, two adsorption tanks being arranged in parallel and a nitrogen buffer tank, wherein first filter
（41）Input pass through the output end of pipeline communication freeze drier, the second filter（42）Output end by pipeline and
Switching mechanism is respectively communicated with the air inlet of two adsorption tanks, the nitrogen gas outlet connection nitrogen buffer tank of two adsorption tanks（45）'s
Input, the output end connection nitrogen storage tank of nitrogen buffer tank（5）Input；The controlling organization includes DCS controllers,
The input of DCS controllers is connected to the oxygen content monitor of nitrogen oxygen content in monitoring device and for detection means respectively
The pressure sensor of middle nitrogen pressure, the output end of DCS controllers distinguish the controlled end of each valve in attachment means.
2. carbon molecular sieve swing adsorption nitrogen producing apparatus according to claim 1, it is characterised in that：Set in the adsorption tanks
There is the carbon molecular sieve for separation of nitrogen and oxygen.
3. carbon molecular sieve swing adsorption nitrogen producing apparatus according to claim 1, it is characterised in that：The switching mechanism includes
The inlet end balanced valve being connected respectively with DCS controller output ends（J1）, outlet side balanced valve（J2）, left adsorption tanks air inlet switch
Valve（G1）, left adsorption tanks nitrogen outlet switch valve（G2）, left adsorption tanks oxygen outlet switch valve（G3）, right adsorption tanks air inlet switch
Valve（G4）, right adsorption tanks nitrogen outlet switch valve（G5）With right adsorption tanks oxygen outlet switch valve（G6）；
The left adsorption tanks air inlet switch valve（G1）With right adsorption tanks air inlet switch valve（G4）Inlet end respectively with second filtering
Device（42）Output end connection, left adsorption tanks air inlet switch valve（G1）With right adsorption tanks air inlet switch valve（G4）Outlet side difference
Connect the air inlet of left adsorption tanks and right adsorption tanks；The inlet end balanced valve（J1）Connect left adsorption tanks air inlet switch valve（G1）
With right adsorption tanks air inlet switch valve（G4）Outlet side；
The left adsorption tanks nitrogen outlet switch valve（G2）With right adsorption tanks nitrogen outlet switch valve（G5）Inlet end connect respectively
Lead to the nitrogen gas outlet of left adsorption tanks and right adsorption tanks, left adsorption tanks nitrogen outlet switch valve（G2）With right adsorption tanks nitrogen outlet
Switch valve（G5）Outlet side be respectively communicated with nitrogen buffer tank（45）Inlet end, outlet side balanced valve（J2）Connect left adsorption tanks
Nitrogen outlet switch valve（G2）With right adsorption tanks nitrogen outlet switch valve（G5）Inlet end；
The left adsorption tanks oxygen outlet switch valve（G3）With right adsorption tanks oxygen outlet switch valve（G6）Inlet end connect respectively
Lead to the oxygen gas outlet of left adsorption tanks and right adsorption tanks, left adsorption tanks oxygen outlet switch valve（G3）With right adsorption tanks oxygen outlet
Switch valve（G6）Outlet side be respectively communicated with the inlet end of oxygen recovery tank.
4. carbon molecular sieve swing adsorption nitrogen producing apparatus according to claim 1, it is characterised in that：The switching mechanism also wraps
Include the first back-flushing valve for being separately positioned on left adsorption tanks and right absorption upper end（F1）, the second back-flushing valve（F2）, the first back-flushing valve
（F1）With the second back-flushing valve（F2）Controlled end connect the output ends of DCS controllers respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829369.2U CN206940431U (en) | 2017-07-10 | 2017-07-10 | Carbon molecular sieve swing adsorption nitrogen producing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829369.2U CN206940431U (en) | 2017-07-10 | 2017-07-10 | Carbon molecular sieve swing adsorption nitrogen producing apparatus |
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| Publication Number | Publication Date |
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| CN206940431U true CN206940431U (en) | 2018-01-30 |
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ID=61368434
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| CN201720829369.2U Active CN206940431U (en) | 2017-07-10 | 2017-07-10 | Carbon molecular sieve swing adsorption nitrogen producing apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980661A (en) * | 2019-12-25 | 2020-04-10 | 广东电网有限责任公司电力科学研究院 | Nitrogen and oxygen generating device and thermal power plant catalyst reaction performance detection device |
| CN111825065A (en) * | 2020-07-17 | 2020-10-27 | 盖斯伊科技(苏州)有限公司 | Modular nitrogen making machine |
| CN112340711A (en) * | 2019-08-07 | 2021-02-09 | 亚硕实业股份有限公司 | Nitrogen making machine |
-
2017
- 2017-07-10 CN CN201720829369.2U patent/CN206940431U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340711A (en) * | 2019-08-07 | 2021-02-09 | 亚硕实业股份有限公司 | Nitrogen making machine |
| CN110980661A (en) * | 2019-12-25 | 2020-04-10 | 广东电网有限责任公司电力科学研究院 | Nitrogen and oxygen generating device and thermal power plant catalyst reaction performance detection device |
| CN111825065A (en) * | 2020-07-17 | 2020-10-27 | 盖斯伊科技(苏州)有限公司 | Modular nitrogen making machine |
| CN111825065B (en) * | 2020-07-17 | 2021-05-28 | 滁州广钢气体有限公司 | Modular nitrogen making machine |
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