CN201108797Y - Programmable heat-regenerative air dryer controller - Google Patents
Programmable heat-regenerative air dryer controller Download PDFInfo
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- CN201108797Y CN201108797Y CNU2007201577030U CN200720157703U CN201108797Y CN 201108797 Y CN201108797 Y CN 201108797Y CN U2007201577030 U CNU2007201577030 U CN U2007201577030U CN 200720157703 U CN200720157703 U CN 200720157703U CN 201108797 Y CN201108797 Y CN 201108797Y
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Abstract
The utility model relates to a programmable thermal regeneration air drying controller, which comprises a controller shell with a controller operation panel; a power transformer, a programmable controller PLG and a electromagnetic valve power circuit board are arranged in the controller shell; the input ends of the programmable controller PLG are respectively connected with an A-tower pressure sensor, an A-tower dew temperature sensor, a B-tower pressure sensor, and a B-tower dew temperature sensor which are outside of the controller shell, and a drying tower pressure indicator and a dry tower dew temperature indicator are arranged on the operation panel of the controller. The outlet ends of the programmable controller PLG are respectively connected with an electrical valve DDV1, an electrical valve DDV2, an electrical valve DDV3 and an electrical valve DDV4 which are outside of the controller shell and are connected with an A-tower, a B-tower inlet valve, an A-tower and a B-tower outlet tower to control the opening and closing of the valves. The aerodynamic regulation valve bit indicator is arranged on the controller operation panel. The programmable thermal regeneration air drying controller can improve the drying efficiency, reduces the service life of the drying agent, saves the energy and reduces the consumption.
Description
Technical field
The utility model relates to a kind of air apparatus for control of drying, relates in particular to the dry controller of a kind of hot regeneration air able to programme.
Background technology
Compressed air is one of power source important in the industrial processes, and make inevitably in the process of air compression that the humidity of air increases, in the engineering of compression, also can not satisfy needs owing to mist of oil, dust etc. makes compressed-air actuated quality descend as power.Therefore in the process of air compression, purify and impurity such as dry place to go redundant moisture, mist of oil compressed air.Hot regeneration air drier is according to the transformation absorption principle, utilizes self-heating and little thermal regeneration method that compressed air is carried out adsorption dry.The compressed air of discharging from the air compressor machine after cooler is a kind of supersaturation compressed air, contains a certain amount of condensate water, though disposed water separation equipment, still contains a large amount of moisture in the compressed air.A spot of condensate water influences little, if still will cause absorption deterioration, dew-point temperature sharply to rise in the adsorption tower because a large amount of condensate water of improper factor enters, causes adsorbent to be broken into powder and the necessary consequence of changing adsorbent when serious.In addition, for the thermal regeneration drying machine, the regeneration gas instantaneous delivery can not be too small, otherwise can reduce regeneration gas heat transfer efficiency as heat carrier, cause hot-spot and big portion does not have heat, destroy sorbent structure and performance, the too small meeting of flow simultaneously makes flow velocity low excessively, easily form and form " channel effect ", and cause can't uniformly transfer heat and effectively desorb because of air-flow passes through the adsorption layer short circuit.
Summary of the invention
The purpose of this utility model provides a kind of service life of drying efficiency, reduction drier, energy-saving and cost-reducing dry controller of able to programme hot regeneration air of improving.
For achieving the above object, the technical solution adopted in the utility model is:
The dry controller of a kind of hot regeneration air able to programme, comprise: controller housing, have the controller function panel on the controller housing, power transformer is installed in the controller housing, power transformer provides working power for controller, it is characterized in that: Programmable Logic Controller PLC and power of electromagnetic valve circuit board also are installed in the shell, the input of Programmable Logic Controller PLC respectively with controller housing beyond A pressure tower sensor, A tower dew point temperature sensor, B pressure tower sensor, B tower dew point temperature sensor connects, and indication of drying tower pressure and the indication of drying tower dew-point temperature are positioned on the controller function panel; The output of Programmable Logic Controller PLC respectively with controller housing beyond magnetic valve DDV
1, magnetic valve DDV
2, magnetic valve DDV
3, magnetic valve DDV
4Connect magnetic valve DDV
1, magnetic valve DDV
2, magnetic valve DDV
3, magnetic valve DDV
4Be connected the opening and closing of control valve with A tower intake valve, B tower intake valve, A tower air bleeding valve, B tower air bleeding valve respectively; The indication of pneumatic control valve valve position is positioned on the controller function panel.
According to the dry controller of described hot regeneration air able to programme, it is characterized in that: have work tower indication and power switch on the described controller function panel.
The utility model passes through the quite big and easy unheeded several aspects of the normal influence on system operation of drier factor, it is intake air temperature, operating pressure, condensate water, mist of oil, regeneration tolerance is to the analysis of hot regenerative process and drying efficiency influence, the utility model and process conditions and the control device supporting have been designed with it, can guarantee that by the utility model compressed air water content at normal temperatures satisfies the production needs, and compressed air carried out rational drying, usually because the needs that air for continuous is produced, dry run also must be carried out continuously, therefore production process can recycle then by the utility model to losing the desiccant regeneration of wet part adsorption capacity.The utility model is optimized once more to technical process on the basis of original desiccant regeneration control, select mutually deserved drying process according to different production processes, therefore can improve reproduction operation efficient greatly, reduce the consumption of maintenance workload and drier, the consumption of hot-air when reducing regeneration, improve the regeneration ratio, shorten the recovery time, improve the efficient of compressed air production process.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a controller function panel schematic diagram of the present utility model.
The drying tower drying process sketch that Fig. 3 controls for the utility model.
Fig. 4 the utility model control circuit schematic diagram.
Fig. 5 is Programmable Logic Controller PLC control sequential logic figure.
Fig. 6 is the dry sequential chart of drying tower.
In the accompanying drawing: 1, drying tower pressure indication; 2, drying tower dew-point temperature indication; 3, power switch; 4, pneumatic control valve valve position indication; 5, power transformer; 6, remittance wire casing; 7, controller housing; 8, power of electromagnetic valve circuit board; 9, bundle conductor; 10, Programmable Logic Controller PLC; 11, indicator lamp; 12, work tower indication; 13, the A tower check-valves of giving vent to anger; 14, A pressure tower sensor; 15, A tower dew point temperature sensor; 16, A tower; 17, A tower air bleeding valve; 18, A tower intake valve; 19, humid air import; 20, B tower intake valve; 21, B tower air bleeding valve; 22, exhaust silencer; 23, cyclelog; 24, B tower; 25, B tower dew point temperature sensor; 26, B pressure tower sensor; 27, the B tower check-valves of giving vent to anger; 28, regeneration tolerance flow controller; 29, dry air outlet; 30, port cap.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Compressed air is one of power source important in the industrial processes, and make inevitably in the process of air compression that the humidity of air increases, in compressed-air actuated process, to purify and impurity such as dry place to go redundant moisture, mist of oil compressed air, hot regeneration air drier is according to the transformation absorption principle, utilizes self-heating and little thermal regeneration method that compressed air is carried out adsorption dry.The utility model passes through the quite big and easy unheeded several aspects of the normal influence on system operation of drier factor, it is the analysis of intake air temperature, operating pressure, condensate water, mist of oil, regeneration tolerance to hot regenerative process and drying efficiency influence, design corresponding technological conditions and control device, mainly comprised seven major parts compositions such as PLC cyclelog, pneumatic control valve, control valve source of the gas, magnetic valve, guidance panel, dew point control energy conserving system, Pressure and Control system.Can improve the regeneration ratio greatly, reduce the consumption of maintenance workload and drier, thereby increase work efficiency.
The utility model such as Fig. 1, Fig. 2 Fig. 3, shown in Figure 4 comprise: controller housing 7, have the controller function panel on the controller housing 7, and power transformer 5 is installed in the controller housing 7, power transformer 5 provides working power for controller.Programmable Logic Controller PLC 10 and power of electromagnetic valve circuit board 8 are installed in the shell 7, the input of Programmable Logic Controller PLC10 is connected with controller housing A pressure tower sensor 14 (referring to Fig. 3, Fig. 4), A tower dew point temperature sensor 15, B pressure tower sensor 26, B tower dew point temperature sensor 25 in addition respectively, and indication 1 of drying tower pressure and drying tower dew-point temperature indication 2 are positioned on the controller function panel.The output of Programmable Logic Controller PLC (10) respectively with controller housing beyond magnetic valve DDV
1, magnetic valve DDV
2, magnetic valve DDV
3, magnetic valve DDV
4Connect (see figure 4), magnetic valve DDV
1, magnetic valve DDV
2, magnetic valve DDV
3, magnetic valve DDV
4Be connected the opening and closing of control A tower intake valve 18, B tower intake valve 20, A tower air bleeding valve 17, B tower air bleeding valve 21 respectively with A tower intake valve 18, B tower intake valve 20, A tower air bleeding valve 17, B tower air bleeding valve 21.Pneumatic control valve valve position indication 4 is positioned on the controller function panel.Have work tower indication 12 and power switch 3 on the controller function panel.
Operation principle of the present utility model:
The utility model is to utilize transformation absorption, regeneration cycle to make the compressed air alternating current through two towers that are full of adsorbent of A, B, promptly when a tower under high partial pressures (operating pressure) state during adsorbed water steam, another tower switches by the time-program(me) of setting then in low dividing potential drop (near atmospheric pressure) desorb down.Device that the utility model is mainly concerned with and system are several main parts such as Programmable Logic Controller PLC, pneumatic control valve, control valve source of the gas, magnetic valve, guidance panel, dew-point control system, Pressure and Control system.Specified processing tolerance is 1-300Nm3/min.
Programmable Logic Controller PLC is in order to the control of processes such as the switching of the setting of finishing the dry run technological parameter, modification, self check, dry tower body, magnetic valve break-make.
Pneumatic control valve adopts the switch control mode, enters and gets rid of the air stream of drier with control, and guarantee correct start-up time and enough flows
The control valve source of the gas mainly provides the power gas source of pneumatic control valve to guarantee that pressure limit is at the 0.8-1.2 Kilogram Force Per Square Centimeter.Cleanliness factor should satisfy the primary condition as source of the gas.
The effect of magnetic valve is to guarantee that the opening time is to satisfy the needs of pneumatic control valve bleed pressure change procedure and response time.
Guidance panel satisfies general operation process needs easily.
Electric cabinet is in order to hold PLC controller, magnetic valve dc source and other vigour parts.
Dew point control energy conserving system is in order to allow the regeneration air drier be in full load condition as much as possible, to save the energy to greatest extent.The dew point energy-saving control system is made up of dew point sensing instrument and PLC.Dew point sensing instrument is installed in the exit of drying machine.Needed dew-point temperature is set on the dew point energy-saving control system regeneration air dryer export dew-point temperature and setting value that system's online contrast dew point sensing head measures.When measured value is lower than when setting value, system does not send absorption/regeneration switching signal, and absorption is proceeded, and has finished in official hour and regenerate, and is promptly to be switched after the pressurising etc., do not consume regeneration air at this moment.When blotting machine outlet dew-point temperature and equal to set value, system sends absorption/regeneration switching signal, enters next circulation.
The effect of Pressure and Control system is the pressure of two drying towers of comparison, only equates at pressure, when drying tower outlet dew-point temperature equals to set value, and system just can send absorption/regeneration switching signal, enters next circulation.
The equipment and technology characteristics:
1, adopt the unlubricated pneumatic control valve of import quality, dependable performance, the life-span is long.
2, stainless valve damping anticorrosion.
3, air guide filter and servo electromagnetic valve are further guaranteed complete machine stability.
4, the automatically equalizing voltage function prolongs the service time of drier.
5, dew point control guarantees operating at full capacity of drier.
6, Xian Jin debugging detection means is guaranteed the stability of equipment work.
7, low decibel silencer reduces noise.
8, full-automatic PLC Control System of Microcomputer can be according to the autonomous programmed settings of customer requirements.
9, operating pressure accommodation is wide, and the dry gas dew point is low, and the regeneration air consumption is little, and switching time is long, and is easy to operate.
The equipment important technological parameters:
1, intake air temperature≤40 ℃;
2, rated operating pressure 0.7MPa allows working pressure 0.4-1.0MPa;
3, pressure drop 0.02MPa;
4, dew point-23 ℃--40 ℃;
5, regeneration air consumption 5-8%;
6, air inlet oil content≤0.01PPm;
7, the cycle: 4～10 minutes;
8, control mode: PLC sequential control;
9, power supply power consumption: AC220V, 60W, working environment: indoor.
10, mounting means: indoor, foundation-free.
The utility model operation instruction:
The import and export of two drying tower A, B are interconnected by pipeline respectively, switch between two towers and independent operating in order to make, and related valve has been installed in the junction.The compressed air inlet place of regenerative dryer bottom is provided with four valves, is called intake valve and air bleeding valve, wherein A tower air bleeding valve 17 and the 21 control adsorption tower releases of B tower air bleeding valve, regeneration gas discharging.A tower intake valve 18 and B tower intake valve 20 have been controlled compressed-air actuated flow direction, have promptly determined the switching of absorption and regeneration.These four valve diagonal angle actions when operation.In exit, regenerative dryer adsorption tower top, dried compressed air enters pipe network by check-valves A tower check-valves 13, the B tower check-valves 27 of giving vent to anger of giving vent to anger.Simultaneously, partial regeneration enters the adsorption tower that needs regeneration with dry air by bypass pipe, regeneration tolerance flow controller 28 is installed on the bypass pipe, and regeneration tolerance flow controller 28 is orifice plate aperture or ball valve, and its open degree is decided by required regeneration tolerance and finishes regeneration back two towers " all pressing ".
The operation principle of heatless regeneration drying machine:
After the drier start, A tower absorption operation, the regeneration of B tower.Under predefined SECO, A tower intake valve 18 is opened, B tower intake valve 20 cuts out, B tower air bleeding valve 21 is opened, A tower air bleeding valve 17 is closed, and humid air enters the A tower by humid air import 19, and dried air enters downstream line dry air outlet 29 by the A tower check-valves 13 of giving vent to anger.The part dried compressed air flows to the B tower by the orifice plate of regeneration tolerance flow controller 28 under the effect of pressure reduction, its pressure is reduced near atmospheric pressure, because volume of air increases in proportion after the step-down, making regeneration have only the part of dry air, the adsorbent bed steam partial pressure in the B tower of the steam partial pressure in the regeneration air of this like this drying especially with the relative humidity of air.Steam in the adsorption bed is released in the regeneration air under the effect of pressure reduction and is pulled away, and regeneration air enters atmosphere by B tower air bleeding valve 21 and exhaust silencer 22, and this process is the half period; Second half cycle is an A tower desiccant regeneration, and the B tower is to the humid air drying.(time of circulation one-period was generally 10 minutes).Behind the regeneration ending, A, B tower can not switch at once, but close B tower air bleeding valve 21 earlier, and the B pressure tower is increased to system pressure, promptly " all press " process.Because during regeneration, adsorption tower is in atmospheric pressure state, with adsorbed state bigger pressure reduction is arranged,, cause mechanical breakdown when serious if directly switching can cause compression shock.Identical when the pressure of two adsorption towers, when blotting machine outlet dew-point temperature and equaling to set value, control system is sent signal and is switched---the regeneration of A tower, the absorption of B tower.
Can find out that from Fig. 5 and Fig. 4 press when the operation button, I1 has input, functional block S2 has output 1 immediately, is divided into two-way, and one tunnel input off delay functional block S1 has output 1 immediately, and B tower intake valve 20 cuts out, and imports on-delay functional block S7 simultaneously.Another road input keeps connecting S5, and behind the time-delay 10s, S4 disconnects input 1, then exports 1, and B tower air bleeding valve 21 is opened, and imports the S5 reset terminal simultaneously S5 is resetted.Behind the 260s, S4 output 0, B tower air bleeding valve 21 valves cut out.Behind 300s, S1 output 0, B tower intake valve 20 valves are opened.S7 output simultaneously 1 also is divided into two-way, one tunnel input S6 off delay functional block, and S6 exports 1 immediately, and A tower intake valve 18 cuts out.Another road input S9 keeps the turn-on power loss piece.Export 1 behind setting-up time 10s, off delay functional block S8 exports 1 immediately, and A tower air bleeding valve 17 is opened, and the reset terminal of importing S9 simultaneously resets S9.Behind setting-up time 260s, S8 output 0, A tower air bleeding valve 17 is opened.Behind setting-up time 300s, S6 output 0, A tower intake valve 18 is opened, S3 output 1, input S2.Then repeat the course of work that begins, enter the next work period.So circulation, 10min is an one-period.
The compressed air of discharging from the air compressor machine after cooler is a kind of supersaturation compressed air, contain a certain amount of condensate water, if entering, a large amount of condensate water will cause absorption to worsen in the adsorption tower, dew-point temperature sharply rises, cause adsorbent to be broken into powder and the necessary consequence of changing adsorbent when serious, the utility model passes through the quite big and easy unheeded several aspects of the normal influence on system operation of drier factor, it is intake air temperature, operating pressure, condensate water, mist of oil, regeneration tolerance is to the analysis of hot regenerative process and drying efficiency influence, process conditions of the present utility model and control device have been designed, can guarantee compressed air water content at normal temperatures by the utility model, compressed air is carried out rational drying, because optimization to technical process, greatly improved operating efficiency, reduce the consumption of maintenance workload and drier, receive good effect.
Claims (2)
1, the dry controller of a kind of hot regeneration air able to programme, comprise: controller housing (7), controller housing has the controller function panel on (7), power transformer (5) is installed in the controller housing (7), power transformer (5) provides working power for controller, it is characterized in that: Programmable Logic Controller PLC (10) and power of electromagnetic valve circuit board (8) also are installed in the shell (7), the input of Programmable Logic Controller PLC (10) respectively with controller housing beyond A pressure tower sensor (14), A tower dew point temperature sensor (15), B pressure tower sensor (26), B tower dew point temperature sensor (25) connects, and drying tower pressure indication (1) and drying tower dew-point temperature indication (2) are positioned on the controller function panel; The output of Programmable Logic Controller PLC (10) respectively with controller housing beyond magnetic valve DDV
1, magnetic valve DDV
2, magnetic valve DDV
3, magnetic valve DDV
4Connect magnetic valve DDV
1, magnetic valve DDV
2, magnetic valve DDV
3, magnetic valve DDV
4Be connected the opening and closing of control valve with A tower intake valve (18), B tower intake valve (20), A tower air bleeding valve (17), B tower air bleeding valve (21) respectively; Pneumatic control valve valve position indication (4) is positioned on the controller function panel.
2, the dry controller of hot regeneration air able to programme according to claim 1 is characterized in that: have work tower indication (12) and power switch (3) on the described controller function panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201577030U CN201108797Y (en) | 2007-11-16 | 2007-11-16 | Programmable heat-regenerative air dryer controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201577030U CN201108797Y (en) | 2007-11-16 | 2007-11-16 | Programmable heat-regenerative air dryer controller |
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| CN201108797Y true CN201108797Y (en) | 2008-09-03 |
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| CNU2007201577030U Expired - Fee Related CN201108797Y (en) | 2007-11-16 | 2007-11-16 | Programmable heat-regenerative air dryer controller |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580482A (en) * | 2012-03-14 | 2012-07-18 | 杭州汉克净化设备有限公司 | Intelligent zero pressure difference switching device for non-heat adsorption compressed air dryer |
| CN104122834A (en) * | 2014-07-25 | 2014-10-29 | 株洲高新技术产业开发区壹星科技有限公司 | Control method and device for heat-adsorption-free air drier |
| CN104536366A (en) * | 2014-12-12 | 2015-04-22 | 东北林业大学 | Integrated full-automatic small drying system based on PLC |
| CN106882176A (en) * | 2017-03-03 | 2017-06-23 | 湖南铁道职业技术学院 | The control assembly and control method of locomotive air source system and its wind regime purifier |
| CN108579352A (en) * | 2018-06-25 | 2018-09-28 | 长沙经济技术开发区祥原动力供应有限公司 | A kind of drying system and its control method for compressed gas |
| CN111610729A (en) * | 2019-02-24 | 2020-09-01 | 中国海洋石油集团有限公司 | Controller of offshore oil production platform instrument gas drying tower |
| CN113663468A (en) * | 2021-07-21 | 2021-11-19 | 首钢京唐钢铁联合有限责任公司 | Dryer pressure-equalizing control method and device, medium and computer equipment |
| CN115155260A (en) * | 2022-07-05 | 2022-10-11 | 东风柳州汽车有限公司 | Double-parameter electronic air treatment system for commercial vehicle and dryer regeneration control method |
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2007
- 2007-11-16 CN CNU2007201577030U patent/CN201108797Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580482A (en) * | 2012-03-14 | 2012-07-18 | 杭州汉克净化设备有限公司 | Intelligent zero pressure difference switching device for non-heat adsorption compressed air dryer |
| CN104122834A (en) * | 2014-07-25 | 2014-10-29 | 株洲高新技术产业开发区壹星科技有限公司 | Control method and device for heat-adsorption-free air drier |
| WO2016011816A1 (en) * | 2014-07-25 | 2016-01-28 | 株洲高新技术产业开发区壹星科技有限公司 | Heatless adsorption air dryer control method and device |
| CN104536366A (en) * | 2014-12-12 | 2015-04-22 | 东北林业大学 | Integrated full-automatic small drying system based on PLC |
| CN106882176A (en) * | 2017-03-03 | 2017-06-23 | 湖南铁道职业技术学院 | The control assembly and control method of locomotive air source system and its wind regime purifier |
| CN106882176B (en) * | 2017-03-03 | 2023-03-28 | 湖南铁道职业技术学院 | Locomotive air source system and control assembly and control method of air source purification device of locomotive air source system |
| CN108579352A (en) * | 2018-06-25 | 2018-09-28 | 长沙经济技术开发区祥原动力供应有限公司 | A kind of drying system and its control method for compressed gas |
| CN111610729A (en) * | 2019-02-24 | 2020-09-01 | 中国海洋石油集团有限公司 | Controller of offshore oil production platform instrument gas drying tower |
| CN113663468A (en) * | 2021-07-21 | 2021-11-19 | 首钢京唐钢铁联合有限责任公司 | Dryer pressure-equalizing control method and device, medium and computer equipment |
| CN115155260A (en) * | 2022-07-05 | 2022-10-11 | 东风柳州汽车有限公司 | Double-parameter electronic air treatment system for commercial vehicle and dryer regeneration control method |
| CN115155260B (en) * | 2022-07-05 | 2023-10-27 | 东风柳州汽车有限公司 | Commercial vehicle double-parameter electronic air treatment system and dryer regeneration control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20091216 |