CN106082144B - A kind of device and its control method for producing nitrogen - Google Patents
A kind of device and its control method for producing nitrogen Download PDFInfo
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- CN106082144B CN106082144B CN201610422061.6A CN201610422061A CN106082144B CN 106082144 B CN106082144 B CN 106082144B CN 201610422061 A CN201610422061 A CN 201610422061A CN 106082144 B CN106082144 B CN 106082144B
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- separator
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- pressure value
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
- C01B21/0455—Physical processing only by adsorption in solids characterised by the adsorbent
- C01B21/0461—Carbon based materials
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
- C01B2210/0015—Physical processing by adsorption in solids characterised by the adsorbent
- C01B2210/0017—Carbon-based materials
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0045—Oxygen
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The present invention provides a kind of device for producing nitrogen, including sequentially connected air compressor, filter, drier, separator and air accumulator；Filter includes liquid filtering and dust-filtering；Wherein further include voltage-stablizer and pressure sensor, voltage-stablizer passes through the first circuit unicom with separator；It is additionally provided with second servo loop on first circuit；First circuit is equipped with the first control valve；Second servo loop is equipped with the second control valve；Pressure sensor is respectively arranged on separator and the first circuit；By using above-mentioned technical proposal, the production efficiency for producing nitrogen can be effectively improved, preventing from floating due to pressure influences the stabilization of equipment；And it can simplify and produce nitrogen gas preparing, reduce passage blockage situation；Safety production efficiency is improved, volume is also relatively small, and is easy to remove and repair.
Description
Technical field
The invention belongs to produce nitrogen technology field, and in particular to a kind of device and its control method for producing nitrogen.
Background technology
Existing nitrogen device of producing generally uses high-quality carbon molecular sieve for adsorbent, using principle of pressure swing adsorption, directly
Nitrogen is obtained from compressed air；Under a certain pressure, the reason of dynamic effect, the diffusion rate of oxygen, nitrogen on carbon molecular sieve
It differs greatly, in the short time, oxygen molecule is largely adsorbed by carbon molecular sieve, and nitrogen molecular reaches the separation of oxygen nitrogen in gas phase enrichment.But by
There is notable difference with the variation of pressure to the adsorption capacity of oxygen in carbon molecules screen layers, reduce pressure, you can desorption carbon molecular sieve is inhaled
Attached oxygen molecule, makes carbon molecular sieve regenerate, and is reused；It is worked using two absorbers, an absorption production nitrogen, a solution
Regeneration is inhaled, cycle is interlocked, continuous output high-quality nitrogen；But existing nitrogen gas preparing rate of recovery of nitrogen of producing is not high, carbon molecular sieve
The service efficiency of layer is also very low；Simultaneously because the influence of pressure, will also seriously affect the working efficiency of absorber.
Technical problem present in nitrogen device is produced based on above-mentioned, there has been no relevant solutions；Therefore compel to be essential
Seek effective scheme to solve the above problems.
Invention content
The purpose of the present invention is shortcomings present in view of the above technology, propose a kind of device for producing nitrogen, purport
It is solving the problems, such as existing to produce nitrogen device pressure instability.
The present invention provides a kind of device for producing nitrogen, including sequentially connected air compressor, filter, drier,
Separator and air accumulator；Filter includes liquid filtering and dust-filtering；Wherein further include voltage-stablizer and pressure sensing
Device, voltage-stablizer pass through the first circuit unicom with separator；It is additionally provided with second servo loop on first circuit；First circuit is equipped with the first control
Valve processed；Second servo loop is equipped with the second control valve；Pressure sensor is respectively arranged on separator and the first circuit.
Further, separator includes the first separator and the second separator；First separator and the second separator are arranged side by side
Setting, and pass through tertiary circuit and the 4th circuit unicom；First circuit and second servo loop and tertiary circuit unicom.
Further, the first separator and the second separator are respectively equipped with carbon molecules screen layers.
Further, further include nitrogen memory, nitrogen memory and separator unicom；For storing nitrogen.
Further, further include oil eliminator；Oil eliminator is set between drier and filter.
Further, further include third control valve, the 4th control valve, the 5th control valve and the 6th control valve；Third control
Valve processed is set on tertiary circuit；4th control valve is set on the 4th circuit；5th control valve is set respectively with the 6th control valve
It is placed in the gas outlet of the first separator and the second separator；Third control valve links with the 5th control valve；4th control valve and
Five control valves link.
Further, further include temperature sensing package, temperature sensing package is respectively arranged at the first separator and the second separator interior outlet
At mouthful.
Further, further include low pressure air pump；The first circuit of low pressure air pump unicom.
The present invention also provides a kind of control methods for producing nitrogen, including： S1：Pressure sensor detects in separator
The pressure value of pressure value and the first circuit；
S2：Compare the pressure value and separator preset pressure value in separator；
S3：Compare the preset pressure value of the pressure value and the first circuit in the first circuit；
S4：When the pressure value in separator is more than separator preset pressure value；And first the pressure value in circuit be less than that its is pre-
If when value, opening the second control valve.
Further, further include：
S11：Pressure sensor detects the pressure value of the first separator and the second separator respectively；
S12：Compare the pressure value of the pressure value and second separator of first separator；
S13：When the numerical value that the pressure value of first separator is more than the pressure value of second separator exceeds 50pa
When, it opens third control valve and is shown in a fully open operation, open the second control valve and be in half-open position.
By using above-mentioned technical proposal, the production efficiency for producing nitrogen can be effectively improved, prevents from floating due to pressure
Influence the stabilization of equipment；And it can simplify and produce nitrogen gas preparing, reduce passage blockage situation；Safety production efficiency is improved,
Volume is also relatively small, and is easy to remove and repair.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Below with reference to attached drawing, the invention will be further described：
Fig. 1 is the apparatus structure schematic diagram that the present invention produces nitrogen.
In figure：1, air compressor；2, filter；3, drier；4, air accumulator；5, the first separator；6, second
Separator；7, third control valve；8, the 4th control valve；9, the 5th control valve；10, the 6th control valve；11, the first control valve；12,
Second control valve；13, voltage-stablizer；14, nitrogen memory.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of device for producing nitrogen, including sequentially connected air compressor 1, mistake
Filter 2, drier 3, separator and air accumulator 4；Filter 2 is filtered including liquid and dust-filtering, mainly tentatively
The liquid and dust particles adulterated in filtering primary air avoids influencing absorption purification in subsequent handling；Wherein further include steady
Depressor 13 and pressure sensor；Further, pressure sensor is respectively arranged at 13 inner wall of separator inner wall and voltage-stablizer, uses
In the pressure value of detection voltage-stablizer 13 and separator；Voltage-stablizer 13 passes through the first circuit unicom with separator；On first circuit also
Equipped with second servo loop；First circuit is equipped with the first control valve 11；Second servo loop is equipped with the second control valve 12；Pressure sensor is distinguished
It is set on separator and the first circuit；Separator includes the first separator 5 and the second separator 6, the first separator 5 and second
Separator 6 is respectively equipped with carbon molecules screen layers, carbon molecules screen layers to the centrifugation of oxygen and nitrogen in air be mainly based upon this two
The diffusion rate of kind of gas on carbon molecular sieve surface is different, by by the smaller gas molecule of diameter（Oxygen）Diffusion rate compared with
Soon, more entrance carbon molecular sieve micropore is to detach two kinds of gases；First separator 5 and the second separator 6 are set up in parallel,
And pass through tertiary circuit and the 4th circuit unicom；First circuit and second servo loop and tertiary circuit unicom；By using above-mentioned
Scheme in separator and can produce pressure transient in the flow path of nitrogen, pass through the control started in second servo loop
Valve 12 processed, makes the nitrogen reflux in voltage-stablizer 13, plays the role of voltage stabilizing；Change value of pressure in separator and voltage-stablizer
Smaller situation, the first control valve 11 on the first circuit are in half opened condition, can equally play and press.
Preferably, further include nitrogen memory 14, nitrogen memory 14 and separator unicom, be mainly used for storing nitrogen；
Nitrogen memory 14 mainly can also further keep the nitrogen in voltage-stablizer 13 sufficient with 13 unicom of voltage-stablizer simultaneously.
Preferably, further include oil eliminator；Oil eliminator is set between drier 3 and filter 4；It is primarily discrete first
The oily matter in filtered gas is walked, avoids oily matter from entering in separator and absorption stickup, shadow is carried out to carbon molecular sieve
It rings and arrives adsorption function.
Preferably, as shown in Figure 1, the invention also includes third control valve 7, the 4th control valve 8, the 5th control valve 9 and
6th control valve 10；Third control valve 7 is set on tertiary circuit, and the keying of the first separator 5 is controlled when for producing nitrogen；
4th control valve 8 is set on the 4th circuit, and the keying of the second separator 6 is controlled when for producing nitrogen；5th control valve 9 with
6th control valve 10 is respectively arranged at the gas outlet of the first separator 5 and the second separator 6；Third control valve 7 and the 5th controls
Valve 9 links, and is mainly used for the first separator 5 of modulation and produces nitrogen and pressure regulation；4th control valve 8 and the 5th control valve 10
It is dynamic, it is mainly used for modulating the second separator 6 and pressure regulation.
Preferably, further include temperature sensing package, temperature sensing package is respectively arranged at 6 inside outlet of the first separator 5 and the second separator
At mouthful, for detecting the first separator 5 and 6 internal temperature of the second separator；When due to when the temperature is excessively high, judging the big of pressure value
It is small.
Preferably, further include low pressure air pump；The first circuit of low pressure air pump unicom；When smaller for pressure, punching press is carried out, is protected
Hold enough pressure.
According to above-mentioned offer scheme, the present invention correspondingly provides a kind of control method for producing nitrogen, includes the following steps：
S1：Pressure sensor detects the pressure value of the pressure value and the first circuit in separator；
S2：Compare the pressure value and separator preset pressure value in separator；
S3：Compare the preset pressure value of the pressure value and the first circuit in the first circuit；
S4：When the pressure value in separator is more than separator preset pressure value；And first the pressure value in circuit be less than that its is pre-
If when value, opening the second control valve.
Preferably, further comprising the steps of：
S11：Pressure sensor detects the pressure value of the first separator and the second separator respectively；
S12：Compare the pressure value of the pressure value and second separator of first separator；
S13：When the numerical value that the pressure value of first separator is more than the pressure value of second separator exceeds 50pa
When, it opens third control valve and is shown in a fully open operation, open the second control valve and be in half-open position；Pressure value exists under normal circumstances
The production of 50Pa or less separators is comparatively safe, and internal pressure is stablized relatively.
By using above-mentioned technical proposal, the production efficiency for producing nitrogen can be effectively improved, prevents from floating due to pressure
Influence the stabilization of equipment；And it can simplify and produce nitrogen gas preparing, reduce passage blockage situation；Safety production efficiency is improved,
Volume is also relatively small, and is easy to remove and repair.
The above, only presently preferred embodiments of the present invention not do limitation in any form to the present invention.It is any ripe
Those skilled in the art is known, without departing from the scope of the technical proposal of the invention, all using technology contents described above
Many possible changes and modifications are made to technical solution of the present invention, or are revised as the equivalent embodiment of equivalent variations.Therefore, all
It is the content without departing from technical solution of the present invention, any change modification made to the above embodiment of technology according to the present invention,
Equivalent variations and modification belong to the protection domain of the technical program.
Claims (10)
1. a kind of device for producing nitrogen, which is characterized in that including sequentially connected air compressor, filter, drier, divide
From device and air accumulator；The filter includes liquid filtering and dust-filtering；Wherein further include that voltage-stablizer and pressure pass
Sensor, the voltage-stablizer pass through the first circuit unicom with the separator；It is additionally provided with second servo loop on first circuit；It is described
First circuit is equipped with the first control valve 11；The second servo loop is equipped with the second control valve 12；The pressure sensor is respectively set
In on the separator and first circuit.
2. the device according to claim 1 for producing nitrogen, which is characterized in that the separator include the first separator and
Second separator；First separator and second separator are set up in parallel, and are joined by tertiary circuit and the 4th circuit
It is logical；First circuit and the second servo loop and the tertiary circuit unicom.
3. the device according to claim 2 for producing nitrogen, which is characterized in that first separator and second point described
It is respectively equipped with carbon molecules screen layers from device.
4. the device according to claim 1 for producing nitrogen, which is characterized in that further include nitrogen memory, the nitrogen
Memory and the separator unicom；For storing nitrogen.
5. the device according to claim 1 for producing nitrogen, which is characterized in that further include oil eliminator；The oil separation
Device is set between the drier and the filter.
6. the device according to claim 2 for producing nitrogen, which is characterized in that further include third control valve, the 4th control
Valve, the 5th control valve and the 6th control valve；The third control valve is set on the tertiary circuit；4th control valve
It is set on the 4th circuit；5th control valve and the 6th control valve be respectively arranged at first separator and
The gas outlet of second separator；The third control valve links with the 5th control valve；4th control valve and institute
State the linkage of the 5th control valve.
7. the device according to claim 6 for producing nitrogen, which is characterized in that further include temperature sensing package, the temperature sensing package point
It is not set at first separator and second separator interior gas outlet.
8. the device according to claim 1 for producing nitrogen, which is characterized in that further include low pressure air pump；The low pressure gas
Pump the first circuit described in unicom.
9. a kind of control method for producing nitrogen, which is characterized in that include the following steps：
S1：Pressure sensor detects the pressure value of the pressure value and the first circuit in separator；
S2：Compare the pressure value and separator preset pressure value in separator；
S3：Compare the preset pressure value of the pressure value and the first circuit in the first circuit；
S4：When the pressure value in separator is more than separator preset pressure value；And first circuit pressure value be less than its preset value
When, open the second control valve.
10. the control method according to claim 9 for producing nitrogen, which is characterized in that further include；
S11：Pressure sensor detects the pressure value of the first separator and the second separator respectively；
S12：Compare the pressure value of the pressure value and second separator of first separator；
S13：When the numerical value that the pressure value of first separator is more than the pressure value of second separator exceeds 50pa, beat
It opens third control valve to be shown in a fully open operation, opens the second control valve and be in half-open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422061.6A CN106082144B (en) | 2016-06-15 | 2016-06-15 | A kind of device and its control method for producing nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422061.6A CN106082144B (en) | 2016-06-15 | 2016-06-15 | A kind of device and its control method for producing nitrogen |
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| CN106082144A CN106082144A (en) | 2016-11-09 |
| CN106082144B true CN106082144B (en) | 2018-11-06 |
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| CN108516527A (en) * | 2018-05-28 | 2018-09-11 | 浙江吉鑫空分材料科技有限公司 | A kind of high efficiency nitrogen manufacturing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205873903U (en) * | 2016-06-15 | 2017-01-11 | 湖州南浔展辉分子筛厂 | Prepare device of nitrogen gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205873903U (en) * | 2016-06-15 | 2017-01-11 | 湖州南浔展辉分子筛厂 | Prepare device of nitrogen gas |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180517 Address after: 313000 1403, room 14, B building, free port, 1188 headquarters, Wuxing District, Huzhou, Zhejiang. Applicant after: Zhejiang creation Intellectual Property Service Co., Ltd. Address before: 313000 Zhejiang, Huzhou, Nanxun, and Fu Fu town mayor, Sha Putian industrial concentration area. Applicant before: Nanxun Huzhou Hui Hui molecular sieve factory |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190520 Address after: 355006 Dawan Ridge, Fuxi Village, Wanwu Town, Fuan City, Ningde City, Fujian Province Patentee after: Ningde Yingde Gas Co., Ltd. Address before: 313000 1403, room 14, B building, free port, 1188 headquarters, Wuxing District, Huzhou, Zhejiang. Patentee before: Zhejiang creation Intellectual Property Service Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20210615 |