CN210528476U - Pressure swing adsorption nitrogen making device - Google Patents
Pressure swing adsorption nitrogen making device Download PDFInfo
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- CN210528476U CN210528476U CN201921090052.7U CN201921090052U CN210528476U CN 210528476 U CN210528476 U CN 210528476U CN 201921090052 U CN201921090052 U CN 201921090052U CN 210528476 U CN210528476 U CN 210528476U
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Abstract
The utility model belongs to the field of nitrogen making devices, in particular to a pressure swing adsorption nitrogen making device, which comprises an air compressor, an air purification component, an adsorption tower and a nitrogen storage tank which are connected in sequence by pipelines; the air purification subassembly with still be equipped with air storage tank and active carbon filter between the adsorption tower, the gas outlet of air storage tank with the inlet end of active carbon filter is linked together, the air inlet of air storage tank with the end of giving vent to anger of air purification subassembly is linked together, the end of giving vent to anger of active carbon filter with the air inlet of adsorption tower is linked together, can avoid the filter in the air purification subassembly to cause overload in the twinkling of an eye to use owing to the quick pressurization of adsorption tower, can carry out further deoiling to the gas that gets into in the adsorption tower, is favorable to prolonging the life-span of packing in the adsorption tower, and the packing falls to a certain position and can send the warning and remind, is convenient for monitor the interior packing state of adsorption tower.
Description
Technical Field
The utility model belongs to nitrogen making device field, concretely relates to pressure swing adsorption nitrogen making device.
Background
Pressure swing adsorption is a gas separation technique that separates gas mixtures by utilizing the differences in the "adsorption" properties of molecular sieves on different gas molecules.
The pressure swing adsorption process comprises the following steps: air enters a compressed air purification assembly after being compressed by an air compressor, the air purification assembly consists of a cooling dryer and three filters with different precisions, liquid water, oil and dust in the compressed air are filtered from coarse to fine through freezing dehumidification and the filters, the purified air is subjected to nitrogen-oxygen separation through an adsorption tower, nitrogen is enriched at the top of the tower and is conveyed to a back-stage nitrogen storage tank through a pipeline, and the nitrogen enters an air consumption point through a flowmeter.
The adsorption tower needs to be pressurized quickly when working, the air purification assembly of the nitrogen making device is directly connected with the adsorption tower, and the quick pressurization of the adsorption tower can cause instant overload use of a filter in the air purification assembly, so that the instant flow of the filter is overlarge, oil and water cannot be separated into the nitrogen making device, and the service life of a filler is influenced; and the filler in the traditional adsorption tower is compressed tightly by the coir mat, so that the filler state in the adsorption tower is difficult to monitor, the filler can be seen only after the filler is pulverized due to problems, the problem of untimely treatment is easy to occur, and the service life of the filler is not prolonged.
Disclosure of Invention
The utility model aims at providing a pressure swing adsorption nitrogen generator to solve prior art adsorption tower during operation and pressurize fast and cause oil water mixture to get into the adsorption tower easily, influence the life of packing and the problem that the state of packing is difficult to the monitoring in the adsorption tower.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a pressure swing adsorption nitrogen making device comprises an air compressor, an air purification assembly, an adsorption tower and a nitrogen storage tank which are sequentially connected through pipelines;
an air storage tank and an activated carbon filter are further arranged between the air purification assembly and the adsorption tower, an air outlet of the air storage tank is communicated with an air inlet end of the activated carbon filter, an air inlet of the air storage tank is communicated with an air outlet end of the air purification assembly, and an air outlet end of the activated carbon filter is communicated with an air inlet of the adsorption tower;
the utility model discloses an adsorption tower, including adsorption tower, cylinder, action bar, stroke switch, air storage tank, the top of adsorption tower is installed one and is compressed tightly the subassembly, it includes the cylinder to compress tightly the subassembly, the action bar of cylinder stretches into in the adsorption tower, the end connection that the action bar stretches into in the adsorption tower has a clamp plate, stroke switch is installed to the action bar upper end of cylinder, and this stroke switch is located the outside of adsorption tower, still be equipped with the alarm on the cylinder, the cylinder with there is a cylinder buffer tank through the pipeline intercommunication between the air storage tank, the alarm with travel switch's.
In the above scheme, adsorption tower and nitrogen gas storage tank all have waste gas drain, and each waste gas drain all is connected with same silencer.
In the above scheme, the air purification assembly comprises a C-stage filter, a cold dryer, a T-stage filter and an A-stage filter which are sequentially connected through pipelines, wherein an air inlet of the C-stage filter is communicated with an air outlet of the air compressor, and an air outlet of the A-stage filter is communicated with an air inlet of the air storage tank.
In the scheme, the number of the adsorption towers is two, the two adsorption towers are connected through a pipeline, and the pipeline is further provided with a valve.
In the above scheme, a one-way valve is further installed on a pipeline connected between the air cylinder buffer tank and the air storage tank.
In the above scheme, the bottom of the air storage tank is provided with a drain outlet, and the drain outlet is provided with a stop valve.
In the above scheme, the alarm is a buzzer.
The utility model discloses has following effect:
(1) the utility model is provided with the air storage tank at the front end of the adsorption tower, and the air storage tank is used for storing gas, so that a great amount of clean compressed air can be supplemented to the adsorption tower when the adsorption tower is rapidly pressurized, and the phenomenon that the filter in the air purification assembly directly conveys gas to the adsorption tower for rapid pressurization so as to cause instant overload use is avoided; the oil or water which cannot be filtered by the air purification component can be attached to the wall of the air storage tank for partial removal when passing through the air storage tank;
(2) the activated carbon filter is arranged at the rear end of the air storage tank, when the front-end air purification assembly is blocked by drainage, the air storage tank 5 can store water generated during the blockage of drainage, so that the problem that the filler in the activated carbon filter loses effectiveness in water inlet and oil inlet in a short time can be avoided, and the service life of the filler in the activated carbon filter can be prolonged; the activated carbon filter can further carry out deoiling treatment on the gas entering the adsorption tower, so that the service life of the filler in the adsorption tower is prolonged;
(3) the packing in the adsorption tower is compressed by an air cylinder, and an air source of the air cylinder is provided by an air storage tank without configuring a separate air source; when the packing falls to a certain position, an alarm can be sent to remind, so that the packing state in the adsorption tower can be monitored conveniently.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a cross-sectional view of an adsorption tower according to an embodiment of the present invention.
In the above drawings: the device comprises a 1-air compressor, a 2-air purification component, a 21-C grade filter, a 22-refrigeration dryer, a 23-T grade filter, a 24-A grade filter, a 3-adsorption tower, a 31-compaction component, a 311-air cylinder, a 312-pressure plate, a 313-travel switch, a 314-alarm, a 32-air cylinder buffer tank, a 33-one-way valve, a 4-nitrogen storage tank, a 5-air storage tank, a 6-activated carbon filter and a 7-silencer.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): referring to FIGS. 1-2: a pressure swing adsorption nitrogen making device comprises an air compressor 1, an air purification component 2, an adsorption tower 3 and a nitrogen storage tank 4 which are connected in sequence through pipelines; the nitrogen storage tank 4 can adopt a stainless steel gas storage tank and is used for storing the separated nitrogen;
referring to fig. 1, an air storage tank 5 and an activated carbon filter 6 are further disposed between the air purification assembly 2 and the adsorption tower 3, an air outlet of the air storage tank 5 is communicated with an air inlet end of the activated carbon filter 6 through a pipeline, an air inlet of the air storage tank 5 is communicated with an air outlet end of the air purification assembly 2 through a pipeline, and the air outlet end 6 of the activated carbon filter is communicated with an air inlet of the adsorption tower 3 through a pipeline; the air storage tank 5 adopts a stainless steel air storage tank and is used for storing the compressed air purified by the air purification component 2; the activated carbon filter 6 is a filtering apparatus, filled with activated carbon inside, for further deoiling the gas entering the adsorption tower 3;
referring to fig. 1-2, a compressing assembly 31 is installed at the top of the adsorption tower 3, the compressing assembly 31 includes a cylinder 311, an action rod of the cylinder 311 extends into the adsorption tower 3, and a pressing plate 312 is connected to an end of the action rod extending into the adsorption tower 3, a travel switch 313 and an alarm 314 are also installed on the cylinder 311, the travel switch 313 is installed at the upper end of the action rod of the cylinder 311 and located outside the adsorption tower 3, a cylinder buffer tank 32 is communicated between the cylinder 311 and the air storage tank 5 through a pipeline, and the alarm 314 is connected with a normally open contact of the travel switch 313 in series and then connected with a power supply; the air cylinder 311 is connected with the air cylinder buffer tank 32 through a pipeline, the air cylinder buffer tank 32 adopts a metal air tank which is connected with the air storage tank 5, a one-way valve 33 is arranged on the pipeline, and compressed air in the air storage tank 5 is filled into the air cylinder buffer tank 32 to provide an air source for the air cylinder 311 without configuring other independent air sources; in a working state, carbon molecular sieve packing is required to be filled in the adsorption tower 3, the pressing plate 312 at the end part of the action rod of the air cylinder 311 is tightly pressed on the upper part of the packing in the adsorption tower 3, the action rod of the air cylinder 311 descends along with the carbon molecular sieve packing, when the carbon molecular sieve packing descends to a certain position, the travel switch 313 can be triggered, an electric signal is output through the travel switch 313 to turn on the alarm 314 so as to remind a user of replacing or maintaining the carbon molecular sieve packing in time, the travel switch 313 can be of an SZ-3101 type, and the alarm 314 is a buzzer;
when the air purifier works specifically, air in the atmosphere is compressed by an air compressor 1, the pressure is increased to 0.7-1.0Mpa, then the air is subjected to oil and water removal treatment by an air purification assembly 2, the oil content is reduced to 0.01PPM, and the normal pressure dew point of the water content is-17 to-23 ℃; the compressed air after water and oil removal is stored and buffered through an air storage tank 5, then further deoiling treatment is carried out through an activated carbon filter 6, the oil content is reduced to 0.003PPM, nitrogen and oxygen separation is carried out through an adsorption tower 3, the nitrogen obtained after separation enters a nitrogen storage tank 4, and the nitrogen is sent to a later-stage use point after the purity is qualified; when the adsorption tower 3 is pressurized quickly, the air storage tank 5 can supplement a large amount of clean compressed air for the adsorption tower 3 so as to prevent the air purification assembly 2 from supplying air directly, and a filter in the air purification assembly 2 is used under an instant overload condition due to the quick pressurization of the adsorption tower 3; when oil or water which cannot be filtered by the air purification component 2 passes through the air storage tank 5, the oil or water can be attached to the wall of the air storage tank 5 for partial removal, and particularly when the front-end air purification component 2 is blocked by drainage, the air storage tank 5 can store water generated during drainage blockage, so that the problem that the filler in the activated carbon filter 6 loses effectiveness in water inlet and oil inlet in a short time is avoided, and the service life of the filler in the activated carbon filter 6 is prolonged; the gas entering the adsorption tower 3 is further subjected to deoiling treatment by using the activated carbon filter 6, so that the influence on carbon molecular sieve packing is avoided, and the service life of the packing in the adsorption tower 3 is prolonged.
Referring to fig. 1, the air purification assembly 2 includes a C-stage filter 21, a cold dryer 22, a T-stage filter 23 and an a-stage filter 24 connected in sequence by pipes, an air inlet of the C-stage filter 21 is communicated with an air outlet of the air compressor 1, and an air outlet of the a-stage filter 24 is communicated with an air inlet of the air storage tank 5; the C-stage filter 21, the T-stage filter 23, and the a-stage filter 24 are precision filters (also referred to as security filters) with different precisions, and the cylinder case is generally made of stainless steel, and the inside of the cylinder case adopts tubular filter elements such as PP melt-blown, wire-fired, folded, titanium filter elements, activated carbon filter elements, etc. as filter elements for filtering gas; the freeze dryer 22 is a freeze dryer for freezing and dehumidifying.
Referring to FIG. 1: adsorption tower 3 is equipped with two, is connected with the pipeline between two adsorption towers 3 to, still install the valve on this pipeline, two adsorption towers 3 can alternate use, are convenient for improve adsorption efficiency.
Referring to FIG. 1: adsorption tower 3 all has waste gas drain with nitrogen gas storage tank 4, and this waste gas drain is connected with same silencer 7 through the pipeline, and silencer 7 has reduced the noise of adsorption tower 3 and 4 during operations of nitrogen gas storage tank.
Referring to FIG. 1: the bottom of the air storage tank 5 is provided with a sewage discharge outlet, and a stop valve is arranged at the sewage discharge outlet; the drain outlet is used for draining the air storage tank 5.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. The utility model provides a pressure swing adsorption nitrogen generator which characterized in that: comprises an air compressor (1), an air purification component (2), an adsorption tower (3) and a nitrogen storage tank (4) which are connected in sequence by pipelines;
an air storage tank (5) and an activated carbon filter (6) are further arranged between the air purification assembly (2) and the adsorption tower (3), an air outlet of the air storage tank (5) is communicated with an air inlet end of the activated carbon filter (6), an air inlet of the air storage tank (5) is communicated with an air outlet end of the air purification assembly (2), and an air outlet end of the activated carbon filter (6) is communicated with an air inlet of the adsorption tower (3);
the top of adsorption tower (3) is installed one and is compressed tightly subassembly (31), compress tightly subassembly (31) including cylinder (311), the action bars of cylinder (311) stretch into in adsorption tower (3), the end connection that the action bars stretched into in adsorption tower (3) has a clamp plate (312), travel switch (313) are installed to the action bars upper end of cylinder (311), and this travel switch (313) are located the outside of adsorption tower (3), still be equipped with alarm (314) on cylinder (311), cylinder (311) with there is a cylinder buffer tank (32) through the pipeline intercommunication between air storage tank (5), alarm (314) with the normally open contact series connection back power supply of travel switch (313).
2. The pressure swing adsorption nitrogen plant of claim 1, characterized in that: the adsorption tower (3) and the nitrogen storage tank (4) are provided with waste gas emptying ports, and each waste gas emptying port is connected with the same silencer (7).
3. The pressure swing adsorption nitrogen plant of claim 1, characterized in that: the air purification assembly (2) comprises a C-level filter (21), a cold dryer (22), a T-level filter (23) and an A-level filter (24) which are sequentially connected through pipelines, an air inlet of the C-level filter (21) is communicated with an air outlet of the air compressor (1), and an air outlet of the A-level filter (24) is communicated with an air inlet of the air storage tank (5).
4. The pressure swing adsorption nitrogen plant of claim 1, characterized in that: the adsorption tower (3) is provided with two adsorption towers (3) which are connected with the activated carbon filter (6) in parallel through a pipeline, and a valve is further arranged on the pipeline.
5. The pressure swing adsorption nitrogen plant of claim 1, characterized in that: and a one-way valve (33) is further mounted on a pipeline connected between the air cylinder buffer tank (32) and the air storage tank (5).
6. The pressure swing adsorption nitrogen plant of claim 1, characterized in that: the bottom of the air storage tank (5) is provided with a drain outlet, and a stop valve is arranged at the drain outlet.
7. The pressure swing adsorption nitrogen plant of claim 1, characterized in that: the alarm (314) is a buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090052.7U CN210528476U (en) | 2019-07-12 | 2019-07-12 | Pressure swing adsorption nitrogen making device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090052.7U CN210528476U (en) | 2019-07-12 | 2019-07-12 | Pressure swing adsorption nitrogen making device |
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| CN210528476U true CN210528476U (en) | 2020-05-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807334A (en) * | 2020-07-17 | 2020-10-23 | 盖斯伊科技(苏州)有限公司 | Modular nitrogen separation equipment |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807334A (en) * | 2020-07-17 | 2020-10-23 | 盖斯伊科技(苏州)有限公司 | Modular nitrogen separation equipment |
| CN111807334B (en) * | 2020-07-17 | 2021-01-19 | 盖斯伊科技(苏州)有限公司 | Modular nitrogen separation equipment |
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