CN203820458U - PSA (Pressure Swing Adsorption) nitrogen production output device - Google Patents
PSA (Pressure Swing Adsorption) nitrogen production output device Download PDFInfo
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- CN203820458U CN203820458U CN201420219723.6U CN201420219723U CN203820458U CN 203820458 U CN203820458 U CN 203820458U CN 201420219723 U CN201420219723 U CN 201420219723U CN 203820458 U CN203820458 U CN 203820458U
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- nitrogen
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Abstract
The utility model relates to the field of air separation equipment and particularly relates to an output device of PSA (Pressure Swing Adsorption) nitrogen production equipment. The output device is used for solving the problem of the existing PSA equipment that a system has no self-regulating and controlling ability when consumed gas is subjected to fluctuation, the purity of product gas is instable during consumed gas fluctuation, and thus, gas consumption at terminals is affected. The output device of the nitrogen production equipment, which is provided by the utility model, has the advantages that the purity of nitrogen gas is automatically analyzed and the nitrogen gas with insufficient purity is refluxed to a gas inlet. The output device comprises the nitrogen production equipment, a nitrogen gas buffer tank, the gas inlet and an outlet end, wherein a flow displaying and regulating device and a pressure displaying and regulating device are arranged at the outlet end, a purity analyzer and a control device are arranged between the nitrogen production equipment and the nitrogen gas buffer tank, the nitrogen production equipment is connected with the purity analyzer through a nitrogen gas output pipeline, unqualified nitrogen gas is refluxed to the gas inlet through a gas return pipe, and qualified nitrogen gas enters the nitrogen gas buffer tank through a gas outlet pipe. According to the output device, a whole process is automatically regulated and controlled, the purity of the nitrogen gas is guaranteed, and the efficiency of nitrogen production is improved.
Description
Technical field
The utility model relates to air separation equipment field, particularly a kind of take-off equipment of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE.
Background technology
The generalized flowsheet of existing THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE is the compressed-air actuated purification assembly dedusting, the oil removing that connect by pipeline, dewater after, connect again the adsorption tower of two pressure-variable adsorptions, the product nitrogen gas of producing by the switching of pressure-variable adsorption is transported to surge tank, set up thief hole and under meter at the exit end of gas product, regulate uninterrupted and the testing product purity of finished product gas, for terminal.The defect that this mode of operation exists is: variable-pressure adsorption equipment is in the time occurring fluctuation with gas, and system, without self-control and controllability, makes purity of product gas unstable when moving with wave, thereby affects terminal gas.
Patent document CN201923845U discloses a kind of nitrogen take-off equipment processed, and it is provided with two groups of surge tanks, one group of sampling surge tank, one group of voltage stabilizing surge tank, although reached the effect of voltage stabilizing sampling, lacks self-control and controllability, and operation is too complicated, and practicality is not strong.In addition, patent document CN203200024U also discloses a kind of nitrogen take-off equipment processed of automatic control, its exit end after surge tank is provided with gets purity check and control device, direct emptying when purity is not up to standard, just there is a large amount of operations and the wasting of resources in this, such as nitrogen almost up to standard is by directly emptying.
Summary of the invention
The purpose of this utility model is to solve variable-pressure adsorption equipment there is when fluctuation with gas, and system cannot self-control and the technical problem such as control, and a kind of automatic analysis nitrogen body purity is provided, to the reflux equipment of making nitrogen take-off equipment of inlet mouth of the nitrogen of purity deficiency.
Technical problem of the present utility model is mainly solved by following technical proposals:
A kind of making nitrogen by pressure swing adsorption take-off equipment, comprise the equipment of making nitrogen, nitrogen buffer tank, inlet mouth and exit end, described exit end is provided with flow indication setting device and pressure vision-control device, between the described equipment of making nitrogen and nitrogen buffer tank, be provided with purity check instrument and control device, the described equipment of making nitrogen is connected with purity check instrument by nitrogen output channel, defective nitrogen is by the muffler inlet mouth that refluxes, and passing nitrogen enters nitrogen buffer tank by escape pipe.Described purity check instrument is connected by circuit with control device.
Further, described muffler is provided with return-air valve, and described escape pipe is provided with air outlet valve, described purity check instrument analysis shows when nitrogen gas purity is defective, open return-air valve by control device, described purity check instrument analysis shows when nitrogen gas purity is qualified, opens air outlet valve by control device.Described control device is connected by circuit with return-air valve, air outlet valve.
Concrete, control device is PLC, exit end is also provided with blow-off valve and manually-operated gate.
The beneficial effects of the utility model are: this device arranges automatic purity check instrument between the equipment of making nitrogen and surge tank, in the time that purity is not enough, by control device open return-air valve by impure nitrogen reflux to inlet mouth, pure nitrogen gas is not rapidly again by equipment of making nitrogen pressure-variable adsorption and again enter purity check, after purity is up to standard, opens air outlet valve enter nitrogen buffer tank by control device, whole-course automation regulates to be controlled, ensure nitrogen gas purity, and improve nitrogen efficiency processed.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device.
In figure: 1. inlet mouth, the 2. equipment of making nitrogen, 3. nitrogen buffer tank, 4. nitrogen output channel, 5. purity check instrument, 6. control device, 7. muffler, 8. escape pipe, 9. return-air valve, 10. air outlet valve, 11. flow indication setting devices, 12. pressure vision-control devices, 13. exit end.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as Fig. 1, a kind of making nitrogen by pressure swing adsorption take-off equipment, comprises the equipment of making nitrogen 2, nitrogen buffer tank 3, inlet mouth 1 and exit end 13, and described exit end 13 is provided with flow indication setting device 11 and pressure vision-control device 12, monitor at any time flow and pressure, assurance device normally moves.Between the described equipment of making nitrogen 2 and nitrogen buffer tank 3, be provided with purity check instrument 5 and control device 6, the described equipment of making nitrogen 2 is connected with purity check instrument 5 by nitrogen output channel 4, gas is by the equipment of making nitrogen 2 making nitrogen by pressure swing adsorption, enter purity check instrument 5 by nitrogen output channel 4 again, described control device 6 is set purity acceptability limit, defective nitrogen, by muffler 7 backflow inlet mouths 1, restarts making nitrogen by pressure swing adsorption; Passing nitrogen enters nitrogen buffer tank 3 by escape pipe 8.Described purity check instrument 5 is connected by circuit with control device 6.
Described muffler 7 is provided with return-air valve 9, described escape pipe 8 is provided with air outlet valve 10, and described purity check instrument 5 is analyzed and shown when nitrogen gas purity is defective, opens return-air valve 9 by control device 6, described purity check instrument 5 is analyzed and is shown when nitrogen gas purity is qualified, opens air outlet valve 10 by control device 6.Described control device 6 is connected by circuit with return-air valve 9, air outlet valve 10.Full automatic control purity check and family of power and influence's switch.
In the present embodiment, as preferred, control device 6 is PLC, and exit end 13 is also provided with blow-off valve and manually-operated gate (not shown), in the time that abnormal conditions appear in device, can adopt manual switch.
Principle of work of the present utility model is:
Gas enters the equipment of making nitrogen from inlet mouth, and through pressure-variable adsorption output nitrogen, nitrogen arrives purity check instrument from input channel.Automatically purity check instrument is arranged between the equipment of making nitrogen and surge tank, control device is set purity acceptability limit, in the time that nitrogen gas purity is not enough, by control device open return-air valve by impure nitrogen reflux to inlet mouth, pure nitrogen gas is not rapidly by again passing through purity check instrument after equipment of making nitrogen pressure-variable adsorption, if still purity deficiency, work before repeating, if purity is up to standard, open air outlet valve by control device and enter nitrogen buffer tank until be transported to nitrogen user, this installs whole-process automatic adjusting control, ensures nitrogen gas purity, and improves nitrogen efficiency processed.
The present embodiment is the embodiment of the utility model example; for those skilled in the art; the utility model discloses on the basis of application method and principle; be easy to make various types of improvement or distortion; and be not limited only to the described structure of the above-mentioned embodiment of the utility model; therefore previously described mode is preferred version; and do not there is restrictive meaning; every equivalence of doing according to the utility model changes and amendment, all in the scope protection domain of the utility model claims.
Claims (2)
1. a making nitrogen by pressure swing adsorption take-off equipment, comprise the equipment of making nitrogen, nitrogen buffer tank, inlet mouth and exit end, described exit end is provided with flow indication setting device and pressure vision-control device, it is characterized in that: between the described equipment of making nitrogen and nitrogen buffer tank, be provided with purity check instrument and control device, the described equipment of making nitrogen is connected with purity check instrument by nitrogen output channel, defective nitrogen is by the muffler inlet mouth that refluxes, and passing nitrogen enters nitrogen buffer tank by escape pipe.
2. a kind of making nitrogen by pressure swing adsorption take-off equipment according to claim 1, it is characterized in that: described muffler is provided with return-air valve, described escape pipe is provided with air outlet valve, described purity check instrument analysis shows when nitrogen gas purity is defective, open return-air valve by control device, described purity check instrument analysis shows when nitrogen gas purity is qualified, opens air outlet valve by control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219723.6U CN203820458U (en) | 2014-04-30 | 2014-04-30 | PSA (Pressure Swing Adsorption) nitrogen production output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219723.6U CN203820458U (en) | 2014-04-30 | 2014-04-30 | PSA (Pressure Swing Adsorption) nitrogen production output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820458U true CN203820458U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420219723.6U Expired - Fee Related CN203820458U (en) | 2014-04-30 | 2014-04-30 | PSA (Pressure Swing Adsorption) nitrogen production output device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203820458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291280A (en) * | 2014-09-25 | 2015-01-21 | 江苏嘉宇流体装备有限公司 | High-efficiency molecular sieve nitrogen making machine |
| TWI657856B (en) * | 2017-06-20 | 2019-05-01 | 大陸商西梅卡亞洲氣體系統成都有限公司 | Structure and control method of stepless variable load pressure swing adsorption air separation device |
| CN116499252A (en) * | 2023-06-30 | 2023-07-28 | 中石油深圳新能源研究院有限公司 | Gas production system for burning gas of hydrogen furnace |
-
2014
- 2014-04-30 CN CN201420219723.6U patent/CN203820458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291280A (en) * | 2014-09-25 | 2015-01-21 | 江苏嘉宇流体装备有限公司 | High-efficiency molecular sieve nitrogen making machine |
| TWI657856B (en) * | 2017-06-20 | 2019-05-01 | 大陸商西梅卡亞洲氣體系統成都有限公司 | Structure and control method of stepless variable load pressure swing adsorption air separation device |
| CN116499252A (en) * | 2023-06-30 | 2023-07-28 | 中石油深圳新能源研究院有限公司 | Gas production system for burning gas of hydrogen furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160430 |