CN205080411U - Full -automatic frequency conversion control system - Google Patents
Full -automatic frequency conversion control system Download PDFInfo
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- CN205080411U CN205080411U CN201520445271.8U CN201520445271U CN205080411U CN 205080411 U CN205080411 U CN 205080411U CN 201520445271 U CN201520445271 U CN 201520445271U CN 205080411 U CN205080411 U CN 205080411U
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- pneumatic valve
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Abstract
An embodiment of the utility model discloses a full -automatic frequency conversion control system, including the air supply, in order through first choke valve, first pneumatic valve and second pneumatic valve communicate in the terminal adsorption tower of air supply, in order through third pneumatic valve and check valve communicate in the terminal buffer tank of adsorption tower, connect in the dust filter unit of buffer tank export and through first ball valve and filter relief -pressure valve and the PLC switch board that the air supply electricity is connected, the adsorption tower include first adsorption tower and respectively through fourth pneumatic valve, the 5th pneumatic valve, the 6th pneumatic valve and the 9th pneumatic valve, the 8th pneumatic valve and the 7th pneumatic valve, with the second adsorption tower of first adsorption tower intercommunication, adopt the utility model discloses, can change the switching frequency of first adsorption tower and second adsorption tower according to user's actual nitrogen gas use amount, reach the frequency conversion effect, realize saving compressed air, energy -saving power's purpose.
Description
Technical field
The utility model relates to Full-automatic variable-frequency control field, particularly relates to and automatically changes adsorption tower switching frequency to realize saving compressed-air actuated nitrogen gas generating system according to the actual use amount of nitrogen.
Background technology
It is raw material that nitrogen making machine refers to pressurized air, utilizes physical method, is separated by oxygen wherein and obtains the equipment of nitrogen with nitrogen.Traditional nitrogen making machine, no matter nitrogen use level is how many, the switching frequency due to adsorption tower is fixing, so the air supply consumed also is fixing.When actual nitrogen use level is less than specified nitrogen output, a large amount of pressurized air can be caused to waste.This Full-automatic variable-frequency control technology, can automatically change adsorption tower switching frequency according to the actual use amount of nitrogen, when actual nitrogen use level is less than specified nitrogen output, this technology automatically prolongs the switching cycle of adsorption tower, greatly reduce and save pressurized air consumption, realize energy saving object.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of Full-automatic variable-frequency control system is provided, can when ensureing that nitrogen gas purity and nitrogen use pressure constant, automatically regulate the switching frequency of adsorption tower according to the actual nitrogen use amount of user, compressed-air actuated consumption when minimizing nitrogen amount is few simultaneously.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of Full-automatic variable-frequency control system, it is characterized in that, comprise source of the gas, sequentially pass through first throttle valve, the first pneumatic valve and the second pneumatic valve be communicated in described source of the gas end adsorption tower, sequentially pass through the 3rd pneumatic valve and retaining valve and be communicated in the surge tank of described adsorption tower end, the dust filter unit being connected to the outlet of described surge tank and the PLC control cabinet be electrically connected with described source of the gas by the first ball valve and filtering pressure reducing valve;
Described adsorption tower comprise the first adsorption tower with respectively by the 4th pneumatic valve, the 5th pneumatic valve, the 6th pneumatic valve and the 9th pneumatic valve, the 8th pneumatic valve and the 7th pneumatic valve, the second adsorption tower of being communicated with described first adsorption tower;
Described 4th pneumatic valve is connected with the top of described first adsorption tower, and described 5th pneumatic valve is connected with the top of described second adsorption tower, and described 4th pneumatic valve is connected with described 5th pneumatic valve;
Described 6th pneumatic valve is connected with the middle part of described first adsorption tower, and described 9th pneumatic valve is connected with the bottom of described second adsorption tower, and described 6th pneumatic valve is connected with described 9th pneumatic valve;
Described 8th pneumatic valve is connected with the middle part of described second adsorption tower, and described 7th pneumatic valve is connected with the bottom of described first adsorption tower, and described 8th pneumatic valve is connected with described 7th pneumatic valve.
As the further improvement of the technical program, the end of described dust filter unit is connected with nitrogen analyser; Flowmeter is provided with between described dust filter unit and described nitrogen analyser; Described flowmeter end is connected with the pipeline for discharging defective nitrogen.
The described pipeline for discharging defective nitrogen comprises the first lateral and the second lateral; Described first lateral comprises second throttle and the 11 pneumatic valve; Described second take-off pipe comprises the 3rd throttling valve and the 12 pneumatic valve, and described flowmeter is then for recording the total amount of discharging defective nitrogen; Described first lateral and the second lateral are then respectively used to defective nitrogen to discharge.
Pressure regulator valve is provided with between described dust filter unit and described flowmeter; Jointly sound suppressor is connected, for reducing the noise in nitrogen process processed by the tenth pneumatic valve between described 6th pneumatic valve and the 7th pneumatic valve and between described 8th pneumatic valve and the 9th pneumatic valve.
The top of described first adsorption tower and the second adsorption tower is respectively provided with a cylinder; Described retaining valve is parallel with the second ball valve; Described filtering pressure reducing valve, the first adsorption tower, the second adsorption tower, cylinder, surge tank and pressure regulator valve are respectively connected with a tensimeter, described cylinder is for improving the pressure in the first adsorption tower, described cylinder is for improving the pressure in the second adsorption tower, final object is then the speed that improve nitrogen stream processed, thus also just improves the whole efficiency of nitrogen processed.
Pipeline between described retaining valve surge tank is connected with oxygen sensor transmitter or nitrogen analyser, described retaining valve and oxygen sensor transmitter or nitrogen analyser in parallel with the second ball valve by pipeline, one end pipeline communication surge tank, other end pipeline communication the 3rd pneumatic valve, nitrogen gas concn is detected by the oxygen sensor transmitter between retaining valve and surge tank or nitrogen analyser, if higher than setting value, and adsorption cycle has exceeded and has reached the fixed cycle, then PLC automatically prolongs adsorption cycle, until the nitrogen gas concn that oxygen sensor transmitter between retaining valve and surge tank or nitrogen analyser detect is lower than setting value, just start to switch.
Described source of the gas is air compressor machine.
Implement the utility model embodiment, there is following beneficial effect:
(1) when ensureing that outlet nitrogen gas purity does not decline, changing adsorption tower switching cycle, reducing air supply consumption according to the actual use amount of nitrogen;
(2) structure is simple, failure rate is low;
(3) energy-saving effect is remarkable, and nitrogen gas purity is secure.
Accompanying drawing explanation
Fig. 1 is the structural representation of Full-automatic variable-frequency control system described in the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, Full-automatic variable-frequency control system described in the utility model, comprises the source of the gas 1, adsorption tower 2, surge tank 3, dust filter unit 4 and the PLC control cabinet 8 that provide and prepare nitrogen; Described adsorption tower 2 sequentially passes through the end that first throttle valve 19, first pneumatic valve 20 and the second pneumatic valve 21 are communicated in air compressor machine source of the gas 1; Described surge tank 3 sequentially passes through the end that the 3rd pneumatic valve 5 and retaining valve 6 are communicated in described adsorption tower 2; Described dust filter unit 4 is connected to described surge tank 3 and exports; PLC control cabinet 8 is electrically connected with described source of the gas 1 by the first ball valve 31 and filtering pressure reducing valve 7; What described source of the gas 1 adopted is air compressor machine, and described PLC control cabinet 8 makes the flow process of whole nitrogen processed realize Automated condtrol.
Described adsorption tower 2 comprises the first adsorption tower 9 and the second adsorption tower 10, and described first adsorption tower 9 is communicated with described second adsorption tower 10 respectively by the 4th pneumatic valve 11, the 5th pneumatic valve 12, the 6th pneumatic valve 13, the 7th pneumatic valve 14, the 8th pneumatic valve 15 and the 9th pneumatic valve 16; Described 4th pneumatic valve 11 is connected with the top of described first adsorption tower 9, described 5th pneumatic valve 12 is connected with the top of described second adsorption tower 10, and described 4th pneumatic valve 11 is connected with described 5th pneumatic valve 12, namely make the top of described first adsorption tower 9 be connected with the top of described second adsorption tower 10, in realization, all suppress nitrogen; Described 6th pneumatic valve 13 is connected with the middle part of described first adsorption tower 9, described 9th pneumatic valve 16 is connected with the bottom of described second adsorption tower 10, and described 6th pneumatic valve 13 is connected with described 9th pneumatic valve 16, namely the middle part of described first adsorption tower 9 is connected with the bottom of described second adsorption tower 10, all suppresses nitrogen under in realization; Described 8th pneumatic valve 15 is connected with the middle part of described second adsorption tower 10, described 7th pneumatic valve 14 is connected with the bottom of described first adsorption tower 9, and described 8th pneumatic valve 15 is connected with described 7th pneumatic valve 14, namely the middle part of described second adsorption tower 10 is connected with the bottom of described first adsorption tower 9, all suppresses nitrogen under in same realization.Find out from said structure, the nitrogen of its inside can be circulated to the top of the second adsorption tower 10 by described first adsorption tower 9 by top, also by the middle part of described first adsorption tower 9, the nitrogen of its inside can be circulated to the bottom of the second adsorption tower 10, the O in the first adsorption tower 9 pairs of air
2, CO
2after carrying out selective absorbing, the nitrogen that density is less than air is then positioned at the position, middle and upper part of described first adsorption tower 9, then purity is not high enough in bottom, therefore nitrogen high for described first adsorption tower 9 middle and upper part purity is all circulated in described second adsorption tower 10, makes the high-purity nitrogen in the second adsorption tower 10 be that the more highly purified nitrogen of follow-up output provides powerful guarantee.Equally, the nitrogen of its inside can be circulated to the top of the first adsorption tower 9 by described second adsorption tower 10 by top, by the middle part of described second adsorption tower 10, the nitrogen of its inside can also be circulated to the bottom of the first adsorption tower 9, powerful guarantee can be provided for the more highly purified nitrogen of follow-up generation equally.Above-mentioned two kinds of nitrogen processed belong to alternate absoiption, coordinated realize by PLC control cabinet 8.
The end of described adsorption tower 2 is communicated with surge tank 3 by the 3rd pneumatic valve 5 and retaining valve 6, the high out-degree nitrogen of described surge tank 3 to conveying plays the effect of buffering, then described dust filter unit 4 is delivered to, the impurity such as the dust in high out-degree nitrogen are carried out purified treatment by described dust filter unit 4, obtain more pure nitrogen.
Flowmeter 23 is provided with between described dust filter unit 4 and described nitrogen analyser 17; Described flowmeter 23 end is connected with the pipeline 24 for discharging defective nitrogen, and described pipeline 24 comprises the first lateral 25 and the second lateral 26; Described first lateral 25 comprises second throttle the 27 and the 11 pneumatic valve 28; Described second take-off pipe 26 comprises the 3rd throttling valve the 29 and the 12 pneumatic valve 30.The total amount of defective nitrogen discharged by 23, described flowmeter for recording; Described first lateral 25 and the second lateral 26 are respectively used to defective nitrogen to discharge.
Pressure regulator valve 35 is provided with between described dust filter unit 4 and described flowmeter 23.Described pressure regulator valve 35 filters the air pressure of the gas after 4 from described dust filter unit for adjusting, be unlikely too high and cause pipeline breaking.
Jointly sound suppressor 18 is connected with by the tenth pneumatic valve 22, for reducing the noise in nitrogen process processed between described 6th pneumatic valve 13 and the 7th pneumatic valve 14 and between described 8th pneumatic valve 13 and the 9th pneumatic valve 14.
Described retaining valve 6 is parallel with the second ball valve 32.Described second ball valve 32 for the switching for collaborating, shunting and flow to, thus meets the flow direction of whole system air-flow.
The top of described first adsorption tower 9 and the second adsorption tower 10 is respectively provided with a cylinder 33,34; 33, described cylinder is for improving the pressure in the first adsorption tower 9, and 34, described cylinder is for improving the pressure in the second adsorption tower 10, and final object is then the speed that improve nitrogen stream processed, thus also just improves the whole efficiency of nitrogen processed.
Described filtering pressure reducing valve 7, first adsorption tower 9, second adsorption tower 10, cylinder 33,34, surge tank 3 and pressure regulator valve 35 be respectively connected with a tensimeter 36,36, described tensimeter is for Real-time Feedback pressure and show.
Improving for technique scheme, pipeline between described retaining valve 6 and surge tank 3 is connected with oxygen sensor transmitter or nitrogen analyser 37, described retaining valve 6 and oxygen sensor transmitter or nitrogen analyser 37 in parallel with the second ball valve 32 by pipeline, one end pipeline communication surge tank 3, other end pipeline communication the 3rd pneumatic valve 5; The end of described dust filter unit 4 is also connected with nitrogen analyser 17, for the purity to detection outlet nitrogen.
Further improvement has been done for above-mentioned sequential, described oxygen sensor transmitter or nitrogen analyser 37 can detect the number of oxygen level in output nitrogen, and by real-time Data Transmission to PLC, when user reduces with nitrogen amount, in the nitrogen of output, oxygen level can reduce, the data that PLC transmits according to oxygen sensor 37 and actual demand contrast, when higher than actual demand, then extend sequential 1 and sequential 4, until lower than being just switched to sequential 2 and sequential 5 during actual demand, so just extend the duration of sequential, change air inlet frequency.
For Full-automatic variable-frequency control system described in the utility model, employing be that PLC control cabinet (8) carries out sequential Automated condtrol, concrete time-scale is as follows:
It is as shown in the table, and the time that described PLC control cabinet 8 is arranged also is can adjust according to specifically actual, and object is to make whole nitrogen gas generating system reasonable, orderly cooperation can complete the flow process of nitrogen processed.
Above disclosedly be only a kind of preferred embodiment of the utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (6)
1. a Full-automatic variable-frequency control system, it is characterized in that, comprise source of the gas (1), sequentially pass through first throttle valve (19), first pneumatic valve (20) and the second pneumatic valve (21) are communicated in the adsorption tower (2) of described source of the gas (1) end, sequentially pass through the surge tank (3) that the 3rd pneumatic valve (5) and retaining valve (6) are communicated in described adsorption tower (2) end, be connected to the dust filter unit (4) that described surge tank (3) exports and the PLC control cabinet (8) be electrically connected with described source of the gas (1) by the first ball valve (31) and filtering pressure reducing valve (7),
Described adsorption tower (2) comprise the first adsorption tower (9) with respectively by the 4th pneumatic valve (11), the 5th pneumatic valve (12), the 6th pneumatic valve (13) and the 9th pneumatic valve (16), the 8th pneumatic valve (15) and the 7th pneumatic valve (14), the second adsorption tower (10) of being communicated with described first adsorption tower (9);
Described 4th pneumatic valve (11) is connected with the top of described first adsorption tower (9), described 5th pneumatic valve (12) is connected with the top of described second adsorption tower (10), and described 4th pneumatic valve (11) is connected with described 5th pneumatic valve (12);
Described 6th pneumatic valve (13) is connected with the middle part of described first adsorption tower (9), described 9th pneumatic valve (16) is connected with the bottom of described second adsorption tower (10), and described 6th pneumatic valve (13) is connected with described 9th pneumatic valve (16);
Described 8th pneumatic valve (15) is connected with the middle part of described second adsorption tower (10), described 7th pneumatic valve (14) is connected with the bottom of described first adsorption tower (9), and described 8th pneumatic valve (15) is connected with described 7th pneumatic valve (14);
Pipeline between described retaining valve (6) and surge tank (3) is connected with oxygen sensor transmitter or nitrogen analyser (37), described retaining valve (6) and oxygen sensor transmitter or nitrogen analyser (37) in parallel with the second ball valve (32) by pipeline, one end pipeline communication surge tank (3), other end pipeline communication the 3rd pneumatic valve (5), nitrogen gas concn is detected by the oxygen sensor transmitter between retaining valve and surge tank or nitrogen analyser, if higher than setting value, and adsorption cycle has exceeded and has reached the fixed cycle, then PLC automatically prolongs adsorption cycle, until the nitrogen gas concn that oxygen sensor transmitter between retaining valve and surge tank or nitrogen analyser detect is lower than setting value, just start to switch.
2. Full-automatic variable-frequency control system as claimed in claim 1, it is characterized in that, the end of described dust filter unit (4) is connected with nitrogen analyser (17); Flowmeter (23) is provided with between described dust filter unit (4) and described nitrogen analyser (17); Described flowmeter (23) end is connected with the pipeline (24) for discharging defective nitrogen.
3. Full-automatic variable-frequency control system as claimed in claim 2, it is characterized in that, the described pipeline (24) for discharging defective nitrogen comprises the first lateral (25) and the second lateral (26); Described first lateral (25) comprises second throttle (27) and the 11 pneumatic valve (28); Described second take-off pipe (26) comprises the 3rd throttling valve (29) and the 12 pneumatic valve (30), and described flowmeter (23) is then for recording the total amount of discharging defective nitrogen; Described first lateral (25) and the second lateral (26) are then respectively used to defective nitrogen to discharge.
4. Full-automatic variable-frequency control system as claimed in claim 2, is characterized in that, be provided with pressure regulator valve (35) between described dust filter unit (4) and described flowmeter (23); Jointly sound suppressor (18) is connected, for reducing the noise in nitrogen process processed by the tenth pneumatic valve (22) between described 6th pneumatic valve (13) and the 7th pneumatic valve (14) and between described 8th pneumatic valve (13) and the 9th pneumatic valve (14).
5. Full-automatic variable-frequency control system as claimed in claim 2, it is characterized in that, the top of described first adsorption tower (9) and the second adsorption tower (10) is respectively provided with a cylinder (33,34); Described retaining valve (6) is parallel with the second ball valve (32); Described filtering pressure reducing valve (7), the first adsorption tower (9), the second adsorption tower (10), cylinder (33,34), surge tank (3) and pressure regulator valve (35) are respectively connected with a tensimeter (36), described cylinder (33) is for improving the pressure in the first adsorption tower (9), described cylinder (34) is for improving the pressure in the second adsorption tower (10), final object is then the speed that improve nitrogen stream processed, thus also just improves the whole efficiency of nitrogen processed.
6. Full-automatic variable-frequency control system as claimed in claim 1, it is characterized in that, described source of the gas (1) is air compressor machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445271.8U CN205080411U (en) | 2015-06-25 | 2015-06-25 | Full -automatic frequency conversion control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445271.8U CN205080411U (en) | 2015-06-25 | 2015-06-25 | Full -automatic frequency conversion control system |
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| CN205080411U true CN205080411U (en) | 2016-03-09 |
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| CN201520445271.8U Expired - Fee Related CN205080411U (en) | 2015-06-25 | 2015-06-25 | Full -automatic frequency conversion control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849425A (en) * | 2022-04-13 | 2022-08-05 | 辽宁石油化工大学 | Equipment and method for separating and enriching carbon dioxide in flue gas |
| CN116768166A (en) * | 2023-08-18 | 2023-09-19 | 宁德时代新能源科技股份有限公司 | Nitrogen production control method, device, equipment, storage medium and nitrogen production system |
-
2015
- 2015-06-25 CN CN201520445271.8U patent/CN205080411U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849425A (en) * | 2022-04-13 | 2022-08-05 | 辽宁石油化工大学 | Equipment and method for separating and enriching carbon dioxide in flue gas |
| CN116768166A (en) * | 2023-08-18 | 2023-09-19 | 宁德时代新能源科技股份有限公司 | Nitrogen production control method, device, equipment, storage medium and nitrogen production system |
| CN116768166B (en) * | 2023-08-18 | 2024-02-02 | 宁德时代新能源科技股份有限公司 | Nitrogen production control method, device, equipment, storage medium and nitrogen production system |
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| 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: 20160309 Termination date: 20210625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |