WO2016011818A1 - 一种湿空气干燥方法及模块化空气干燥机 - Google Patents

一种湿空气干燥方法及模块化空气干燥机 Download PDF

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Publication number
WO2016011818A1
WO2016011818A1 PCT/CN2015/074440 CN2015074440W WO2016011818A1 WO 2016011818 A1 WO2016011818 A1 WO 2016011818A1 CN 2015074440 W CN2015074440 W CN 2015074440W WO 2016011818 A1 WO2016011818 A1 WO 2016011818A1
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adsorption
adsorption tower
air
regeneration
module
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PCT/CN2015/074440
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English (en)
French (fr)
Inventor
谢成昆
周湘浩
周剑
周定军
刘波
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株洲高新技术产业开发区壹星科技有限公司
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Priority to DE212015000162.8U priority Critical patent/DE212015000162U1/de
Publication of WO2016011818A1 publication Critical patent/WO2016011818A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40007—Controlling pressure or temperature swing adsorption
    • B01D2259/40009—Controlling pressure or temperature swing adsorption using sensors or gas analysers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption

Definitions

  • the invention relates to a wet air drying method and device, in particular to a non-thermal adsorption drying method and device for outputting air of an air compressor; mainly used for drying the humid air sent out by the air compressor, but also Used for drying various other humid air.
  • the basic working principle of the non-thermal adsorption air dryer is the “pressure swing adsorption” method.
  • the adsorbent adsorbs moisture.
  • the moisture of the adsorbent is “desorbed” and heavy.
  • the adsorbent is thus dehydrated & "regenerated”.
  • the regenerated desorbed air comes from a portion of the dry gas output from the unit.
  • the main body of the non-thermal adsorption air dryer currently used is composed of two adsorption towers, an intake valve, an exhaust valve, a sewage valve, an air outlet check valve, an electric controller, an electric control valve, and a connecting body.
  • the dryer material is mainly made of carbon steel material. It is anti-rust paint and topcoat anti-rust treatment. It is a loose orange structure with complex orange structure, large volume, heavy weight, many parts and many connectors. There are many control lines and many sealing points, so there are many faults. In serious cases, long exhausts will occur due to the failure of the connecting parts of the valve, causing serious accidents of locomotive damage, which will bring harm to the locomotive driving.
  • the electric controller receives a power-on signal.
  • the A-line enters the regenerative state
  • the B-tower enters the adsorption state, from the air compressor.
  • the humid air enters the B tower from the intake valve port, is adsorbed by the adsorbent, and is supplied to the wind device through the check valve, while another small portion of the dry air is regenerated by the A tower, and the humid air is discharged through the exhaust valve and the muffler. Therefore, the adsorption of the B column and the regeneration of the A column are simultaneously performed.
  • the electric controller stops supplying power. In this way, the two electric control valves are de-energized, and the two exhaust valves are in the closed state, so the B tower continues to adsorb and the A tower stops regenerative and enters the inflated state. When the pressure of the two towers reaches the equalizing pressure, the electric controller sends the switching electric power. The signal enters another cycle.
  • This kind of traditional technology allocates the above working time and timing, which is set by the timing controller of the CPU. It can't change the time in the working process. It can't be based on the weight of the air load or the temperature of the dew point. “Smart” adjusts the working status of the dryer. The consequences are caused by a large amount of waste of the finished gas, or the quality of the finished product is not up to standard.
  • the timing controller has a large number of electronic components, a loose structure, and a high failure rate, and failure of one small component causes the entire control to fail.
  • This kind of timing controller does not have the pressure display, dew point display, fault alarm and other extended functions, which can not meet the automation requirements of the rapid development of modern railway locomotives, subways and urban rails. Therefore, the traditional two-tower railway air dryer has too many unsolvable problems, and it has become increasingly unsuitable.
  • the requirements of modern locomotive high-precision braking system, pneumatic door, locomotive air control fittings and gas-supporting components should be met.
  • the restrictor is installed on the air outlet of the first adsorption bucket and the second adsorption bucket to restrict the adsorption bucket.
  • the vacuum motor is installed in the first adsorption bucket.
  • the suction bucket is evacuated on the inlet of the second adsorption tank.
  • the patent number is CN200820123078.2, which is entitled "A kind of electric controller for controlling the double tower air dryer of diesel locomotive”.
  • the patent discloses a method for controlling the electric power of the double tower air dryer of diesel locomotive.
  • the controller is characterized in that: the movement part thereof comprises a power module, a PLC controller, a first contactor and a second contactor; a DC voltage and a control signal are respectively input to the power module, and an output of the power module is used as the PLC An input of the controller; an output of the PLC controller is coupled to the first contactor and the second contactor, respectively, and outputs of the first contactor and the second contactor are respectively connected to the electropneumatic valve controlled by the same.
  • Patent No. CN200820009816.0 a utility model patent entitled “Air Purification Device for Electric Locomotive”, which discloses an air purification device for an electric locomotive, which comprises an external box and an air dryer disposed in the box body.
  • the oil-water separator and the electric controller are composed of two drying towers with the same structure to form a double-tower structure, and the inner wall of the tank is provided with a high-insulation cold-proof packing, and a high-power heater is arranged in the box body.
  • the drying tower is a cylindrical steel bottle type structure, and the drying tower comprises an upper tower cover, a middle cylinder body and a lower head, the air inlet of the drying tower is connected to an air compressor, and is connected by an air inlet.
  • the intake valve is provided on the body; the air outlet is connected to the total air cylinder, and is controlled by an air outlet check valve provided on the air outlet connector; the sewage outlet on the bottom seal is controlled by the exhaust valve to control whether the air is in the drying tower
  • the bottom of the drying tower is provided with a compression spring which is pressed on the upper part of the desiccant through a disc-shaped outlet filter.
  • the object of the present invention is to provide a structure with a complicated structure and large volume for the existing air drying or air purification structure.
  • the invention discloses an intelligent control module integrated multi-tower air drying method and a device thereof, and has the advantages of heavy weight, many components, many connecting members, many control pipelines, many sealing points and many faults, and the air drying method and device thereof have
  • the utility model has the advantages of small volume, light weight, convenient assembly and maintenance, convenient expansion, corrosion resistance, less spare parts, integral integration and convenient replacement.
  • the technical solution adopted by the present invention is: a wet air drying method for treating wet air by an adsorption method, characterized in that an adsorption tower for treating humid air is formed by combining a plurality of adsorption towers, and each adsorption is performed.
  • the towers are modular adsorption towers, and multiple modular adsorption towers are integrated into one unit.
  • the humid air is dried by a combination of multiple modular integrated adsorption towers.
  • the plurality of modular adsorption towers are integrated into one unit, and each adsorption tower is made into a module, and the filter matched with the adsorption tower is integrated into the adsorption tower module, and then the adsorption tower modules are uniformly installed.
  • each adsorption tower is made into a module, and the filter matched with the adsorption tower is integrated into the adsorption tower module, and then the adsorption tower modules are uniformly installed.
  • an upper cover and a lower cover and using the upper cover and the lower cover as intake or outlet passages of the adsorption tower module; forming a modularity by combining the adsorption tower module with the upper cover and the lower cover
  • the combined wet air compressor has no thermal adsorption air drying system, and the non-thermal adsorption air drying system formed by the modular combination performs the non-thermal adsorption air drying of the compressed air discharged from the air compressor.
  • the adsorption tower module is divided into two groups, and the two adsorption tower modules alternately perform adsorption or regeneration operations; when one group is performing adsorption, the other group is subjected to regeneration treatment; and compressed air is input to one of the two groups.
  • the adsorption tower module is subjected to adsorption treatment, and the other adsorption tower modules are simultaneously subjected to regeneration treatment; after adsorption adsorption of the adsorption adsorption tower module is switched, the adsorption is switched to the regeneration treatment, and the other group is also performed. Switching, from regeneration to adsorption.
  • the switching is to change the intake or outlet passage of the adsorption tower module under the upper cover or the lower cover, and connect the combined electric control valve at the outlet of the intake or outlet passages through the electronically controlled valve.
  • the automatic control allows the adsorption tower module to perform adsorption or regeneration alternate operations.
  • the automatic control is to provide an electric control device on the electric control valve, and the electric control valve is controlled by the electric control device to perform the conversion operation.
  • the electric control device performs timing control as needed by a PLC controller, and the PLC controller adopts a programmable logic control technology to control the adsorption or regeneration time of the adsorption tower module by controlling the dew point temperature of the outlet end.
  • the PLC controller is controlled by a sensor, and the temperature signal is collected by the temperature sensor, the pressure signal is collected by the pressure sensor, and the dryer is controlled by the collected temperature signal and the pressure signal.
  • An air dryer for realizing the above-mentioned wet air drying method comprises two or more adsorption towers, wherein the adsorption tower has a modular structure, and the filter of the adsorption tower is integrated with the adsorption tower cylinder to form an adsorption tower module, and the adsorption
  • the tower module is uniformly installed between an upper cover plate and a lower cover plate, and the upper cover plate and the lower cover plate are respectively connected with the two ends of the adsorption tower module cylinder, and the upper cover plate and the lower cover plate are used as the adsorption tower module.
  • the adsorption tower module is divided into two groups, and the two adsorption tower modules alternately perform adsorption or regeneration operations; when one group is performing adsorption, the other group is subjected to regeneration treatment; and compressed air is input to one of the two groups.
  • the adsorption tower module is subjected to adsorption treatment, and the other adsorption tower modules are simultaneously subjected to regeneration treatment; after adsorption adsorption of the adsorption adsorption tower module is switched, the adsorption is switched to the regeneration treatment, and the other group is also performed. Switching, from regeneration to adsorption.
  • the switching is to change the intake or outlet passage of the adsorption tower module under the upper cover or the lower cover, and connect the combined electric control valve at the outlet of the intake or outlet passages through the electronically controlled valve.
  • the automatic control allows the adsorption tower module to perform adsorption or regeneration alternate operations.
  • the automatic control is to provide an electric control device on the electric control valve, and the electric control valve is controlled by the electric control device to perform the conversion operation.
  • the electric control device performs timing control as needed by a PLC controller, and the PLC controller adopts a programmable logic control technology to control the adsorption or regeneration time of the adsorption tower module by controlling the dew point temperature of the outlet end.
  • the PLC controller controls the air inlet temperature sensor to accurately control the air inlet temperature condition, and feeds back to the PLC controller display, thereby controlling the temperature state of the inlet; the PLC controller is also dry
  • the outlet pressure dew point of the machine is monitored, the pressure dew point is displayed, and the working state of the adsorption tower module is automatically switched according to the temperature of the dew point temperature to control the intake adsorption time or the regeneration time to improve the quality of the finished gas and save the product gas. Extend the life of your equipment.
  • the PLC controller is provided with a pressure sensor at the air control combination valve silencer, and the abnormal pressure signal is collected and fed back to the PLC controller.
  • the seal is invalid, and the length is long.
  • the normally open electromagnetic valve entering the intake pipe of the dryer is closed and the other normally closed valve on the bypass line (throwing the malfunctioning dryer) is opened to open the compressed air. Direct supply of wind equipment to achieve emergency use, eliminating the purpose of locomotive machine breaking accidents.
  • an alarm signal is sent to remind the locomotive flight attendant, After the return to the section for repair processing.
  • the electric control valve is provided with a humid air discharge port, and a muffler is connected to the outlet of the wet air discharge port, and the discharged humid air is silenced by the muffler.
  • the muffler also has a function of not blocking, which is superior to existing silencers.
  • the adsorption tower module adopts a vertical, horizontal or side horizontal arrangement, and ensures that liquid water is discharged at the lowest point of the system under various conditions, and the liquid water can be freely discharged from the dryer.
  • the present invention adopts a modular integrated method to form each adsorption tower and matching filter in an air compressor non-thermal adsorption air drying system into an adsorption tower module, and install the adsorption tower modules to Between an upper cover and a lower cover, and using the upper cover and the lower cover as the intake or outlet passages of the adsorption tower module, which can effectively overcome the problems of many connection systems and many pipelines in the prior drying system, thereby improving The safety of the system reduces the occurrence of system failure.
  • the previous multiple valves are integrated into one control valve and the timing control is performed by the PLC controller, the effect of automatic control is greatly improved, and the dew point temperature of the air outlet is adopted. Control (advance or delay) the adsorption-regeneration time of the dryer to reduce the consumption of finished gas, improve the quality of the finished gas, and extend the service life of the equipment.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • Figure 2 is a side elevational view of Figure 1;
  • FIG. 3 is a schematic diagram of a switching principle of the present invention.
  • Figure 4 is a top plan view of the A-A section of Figure 1.
  • the present invention is a humid air non-thermal adsorption air dryer comprising six adsorption towers 5, the adsorption tower 5 being of a modular structure, and the upper filter group 6 of each adsorption tower 5
  • the anti-loose spring 7, the upper positioning filter 8 and the positioning block 9 are installed on the upper inner surface of the adsorption tower 5 tower, and the lower filter assembly 3 and the axial positioning block 4 are installed on the lower inner surface of the adsorption tower 5 tower.
  • the upper filter group 6 and the lower filter combination 3 are integrated with the cylinder of the adsorption tower 5 and the adsorbent material 11 to form an adsorption tower module, and the six adsorption tower modules are divided into two groups which are installed on one upper cover 10 and the lower cover.
  • the upper cover 10 and the lower cover 2 are respectively connected to the two ends of the adsorption tower module cylinder, and the upper cover 10 and the lower cover 2 are used as the intake or outlet passages of the adsorption tower module;
  • the tower module is combined with the upper cover and the lower cover to form a modular combination air compressor non-thermal adsorption modular air drying system, and
  • the non-thermally adsorbed air drying system formed by this modular combination performs non-thermally adsorbed air drying of the compressed air discharged from the air compressor.
  • Two sets of adsorption tower modules one is the adsorption tower group, the other is the regeneration tower group, and the two groups are alternately performing adsorption or regeneration operations.
  • One group When one group is adsorbing, the other group is regenerated; compressed air input
  • One set of adsorption tower modules in the two groups is subjected to adsorption treatment, and the other set of adsorption tower modules are simultaneously subjected to regeneration treatment; after adsorption adsorption of the adsorption adsorption tower module is switched, the adsorption is changed to the regeneration treatment, and The other group will also switch, changing from regeneration to adsorption.
  • the entire air compressor non-thermal adsorption modular air drying system is mounted on the vehicle body via the bracket 13.
  • an electric control valve 1 for changing the intake or outlet passage of the adsorption tower module to make the adsorption tower module perform adsorption or regeneration alternate operation is provided under the lower cover plate 2, and the adsorption tower module is adsorbed by the automatic control of the electric control valve 1 or Regeneration alternates.
  • the automatic control is to set an electric control device on the electric control valve, and the electric control valve is controlled by the electric control device to perform the conversion operation; the electric control device performs timing control through a PLC controller 14 as needed, and the PLC controller adopts programmable logic.
  • the control technology controls the adsorption or regeneration time of the adsorption tower module by controlling the dew point temperature of the outlet end.
  • the PLC controller After receiving the signal from the compressor regulator, the PLC controller outputs an electric signal for controlling the electropneumatic valve, and operates the electric control valve through the electric control device of the electric control valve.
  • the dryer works as follows; when the compressor is started, the PLC controller 14 simultaneously receives a "power on" signal.
  • the controller makes one end of the electric control valve 1 in the state of “power supply”, and the other end of the electric control valve is in the state of “de-energized exhaust”. In this way, the spool 15 is operated.
  • the spool 15 is moved to the left, the exhaust passage of the group B adsorption tower module is opened, and the exhaust passage of the group A adsorption tower module is closed. At this time, the group B tower enters a regenerative state.
  • the group A tower enters the adsorption state, and the saturated humid air enters from the air inlet duct through the modular five-in-one air filter, and most of the water, oil and dust carried in the compressed air are filtered out.
  • the humid air After entering the intake valve seat through the air duct, the humid air enters the left drying tower through the opened intake valve, along the flow direction of the arrow, after the air passage of the lower cover 2, enters the front row A group tower and is adsorbed to reach the upper cover plate.
  • the dried dry air is opened by pressure to open the air outlet check valve on the upper cover 10, and the air supply device is supplied through the air outlet.
  • the other dry wind passes through the regenerative air duct on the air outlet of the upper cover 10, enters the rear row B tower, provides regenerative wind to desorb the adsorption material of the group B tower, and takes the humid air in the group B tower.
  • the air duct on the lower cover 2 and the exhaust valve outlet of the air control combination valve 1 are discharged into the atmosphere through the muffler port.
  • the electric controller stops supplying power to the left side of the electropneumatic threshold.
  • the electropneumatic valves are in a de-energized state, and the two exhaust valves are also in a closed state. Therefore, Group A towers continue to adsorb and Group B towers stop regeneration.
  • the dry air of the group A tower is still sourced into the group B tower, and the pressure is gradually increased due to the non-discharge of the group B tower, and the group B tower is at this time.
  • the room is in the "inflated state”
  • the electric controller starts to supply power to the right side, and the group A tower and the group B tower are regeneratively adsorbed and converted to each other to complete the conversion cycle.
  • the PLC controller 14 not only performs automatic control of the above operating conditions, but also performs automatic control of the entire system of the intelligent module integrated air dryer.
  • the intelligent PLC controller adopts the programmable logic control technology to reduce the consumption of the finished product gas, improve the quality of the finished gas, and extend the equipment by controlling the dew point temperature of the outlet end (advance or delay) switching of the adsorption-regeneration time of the dryer. Service life.
  • the collected electrical signals can be transmitted to the display or an alarm signal. It can also be remotely controlled.
  • the PLC controller controls the inlet temperature sensor to control the inlet temperature and return it to the PLC controller display so that we can control the temperature of the inlet.
  • the PLC controller 14 is provided with a pressure sensor at the muffler 12 of the air control combination valve 1, and the abnormal pressure signal is collected and fed back to the PLC controller 14.
  • the normally open electromagnetic valve entering the intake pipe of the dryer is closed and the other normally closed valve on the bypass line (throwing the malfunctioning dryer) is opened to open the compressed air. Direct supply of wind equipment to achieve emergency use, eliminating the purpose of locomotive machine breaking accidents.
  • an alarm signal is sent to remind the locomotive flight attendant to return to the section for maintenance.
  • the PLC controller 14 also monitors the dew point dew point of the dryer, and displays the pressure dew point and "smart" the operation state of the dryer according to the dew point temperature to control the intake adsorption time or regeneration time to improve The quality of the finished gas and the saving of the finished product, extending the service life of the equipment.
  • the electric control valve is provided with a humid air discharge port, and a muffler 13 is connected to the outlet of the wet air discharge port, and the discharged humid air is silenced by the muffler 13.
  • the basic constitution principle of the second embodiment is the same as that of the first embodiment, except that the adsorption tower modules are four, and the four adsorption tower modules are divided into two groups, which are respectively installed between the upper cover and the lower cover.
  • the adsorption tower modules are four, and the four adsorption tower modules are divided into two groups, which are respectively installed between the upper cover and the lower cover.
  • an electric control valve that changes the intake or outlet passage of the adsorption tower module to make the adsorption tower module perform adsorption or regeneration alternately is provided on the lower cover plate, and the electric control valve is passed through the electric control valve.
  • the automatic control allows the adsorption tower module to perform adsorption or regeneration alternate operations.
  • the automatic control is to set an electric control device on the electric control valve, and the electric control valve is controlled by the electric control device to perform the conversion operation; the electric control device performs the timing control according to the needs through a PLC controller, and the PLC controller adopts programmable logic control.
  • the bottom of the electric control valve is provided with a humid air discharge port, and a muffler is connected to the outlet of the wet air discharge port, and the discharged humid air is silenced by the muffler.
  • the basic constitution principle of the third embodiment is the same as that of the first embodiment, except that the adsorption tower module is installed in a horizontal direction, and the upper cover and the lower cover at the two ends of the adsorption tower module respectively become a right cover and a left cover.
  • the electric control valve is installed on the right cover plate, and the adsorption tower module performs the adsorption or regeneration alternate operation through the automatic control of the electric control valve.
  • the automatic control is to set an electric control device on the electric control valve, and the electric control valve is controlled by the electric control device to perform the conversion operation; the electric control device performs the timing control according to the needs through a PLC controller, and the PLC controller adopts programmable logic control.
  • the technique controls the adsorption or regeneration time of the adsorption tower module by controlling the dew point temperature of the outlet end.
  • the bottom of the side of the electric control valve is provided with a humid air discharge port, and a muffler is connected to the outlet of the wet air discharge port, and the discharged humid air is silenced by the muffler.
  • the present invention can be summarized as a wet air drying method for treating humid air by an adsorption method, characterized in that an adsorption tower for treating humid air is formed by combining a plurality of adsorption towers, and each adsorption tower is formed. Both are modular adsorption towers, and multiple modular adsorption towers are integrated into one unit. The humid air is dried by a combination of multiple modular integrated adsorption towers.
  • the plurality of modular adsorption towers are integrated into one unit, and each adsorption tower is made into a module, and the filter matched with the adsorption tower is integrated into the adsorption tower module, and then the adsorption tower modules are uniformly installed.
  • each adsorption tower is made into a module, and the filter matched with the adsorption tower is integrated into the adsorption tower module, and then the adsorption tower modules are uniformly installed.
  • an upper cover and a lower cover and using the upper cover and the lower cover as intake or outlet passages of the adsorption tower module; forming a modularity by combining the adsorption tower module with the upper cover and the lower cover
  • the combined wet air compressor has no thermal adsorption air drying system, and the non-thermal adsorption air drying system formed by the modular combination performs the non-thermal adsorption air drying of the compressed air discharged from the air compressor.
  • the adsorption tower module is divided into two groups, and the two adsorption tower modules alternately perform adsorption or regeneration operations; when one group is performing adsorption, the other group is subjected to regeneration treatment; and compressed air is input to one of the two groups.
  • the adsorption tower module is subjected to adsorption treatment, and the other adsorption tower modules are simultaneously subjected to regeneration treatment; after adsorption adsorption of the adsorption adsorption tower module is switched, the adsorption is switched to the regeneration treatment, and the other group is also performed. Switching, from regeneration to adsorption.
  • the switching is to change the intake or outlet passage of the adsorption tower module under the upper cover or the lower cover, and connect the combined electric control valve at the outlet of the intake or outlet passages through the electronically controlled valve.
  • Automatic control makes adsorption
  • the tower module performs alternate operations of adsorption or regeneration.
  • the automatic control is to provide an electric control device on the electric control valve, and the electric control valve is controlled by the electric control device to perform the conversion operation.
  • the electric control device performs timing control as needed by a PLC controller, and the PLC controller adopts a programmable logic control technology to control the adsorption or regeneration time of the adsorption tower module by controlling the dew point temperature of the outlet end.
  • the PLC controller is controlled by a sensor, and the temperature signal is collected by the temperature sensor, the pressure signal is collected by the pressure sensor, and the dryer is controlled by the collected temperature signal and the pressure signal.

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  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
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Abstract

一种湿空气干燥方法及空气干燥机，采用吸附方式处理湿空气，处理湿空气的吸附塔为多个吸附塔（5）组合形成，且每一个吸附塔（5）都为模块化吸附塔，多个模块化的吸附塔（5）组合集成为一体，通过多个模块化集成的吸附塔（5）组合对湿空气进行干燥处理。空气干燥机包括两个以上的吸附塔（5），吸附塔（5）为模块化结构，吸附塔（5）的过滤器与吸附塔筒体集成在一起形成吸附塔模块，吸附塔模块统一安装在一个上盖板（10）和下盖板（2）之间，由上盖板（10）和下盖板（2）分别与吸附塔模块筒体的两端连接，并利用上盖板（10）和下盖板（2）作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板（10）和下盖板（2）组合形成一个模块化组合的空气压缩机无热吸附空气干燥系统，并以此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。

Description

一种湿空气干燥方法及模块化空气干燥机 技术领域
本发明涉及一种湿空气干燥方法及装置，特别是一种空气压缩机输出空气的无热吸附式干燥方法及装置；主要用于对空气压缩机送排出的湿空气进行干燥处理，但也可以用于其它各种湿空气的干燥处理。
背景技术
无热吸附式空气干燥机的基本工作原理为“变压吸附”的方式，当含水的压缩空气在高压时通过吸附床时吸附剂吸附水分，在低压时吸附剂的水分被“解吸“并重返气相，吸附剂因此脱水“再生”。而再生解吸的空气来自于本机输出的一部分干燥气。目前使用的无热吸附式空气干燥机主体由两个吸附塔.进气阀，排气阀，排污阀，出气止回阀，电控器，电控阀，连接体等主要部件组成。该类干燥机材料主要为碳钢材料制造，采用防锈油漆和面漆防锈处理，并为松散桔构的型式，具有桔构复杂，体积大、重量重、零部件多、连接件多、控制管路多、密封点多、所以故障多，严重的时候因阀各连接件的故障会造成长排风，造成机车破坏的严重事故，给机车行车带来危害。
由于目前普遍使用的无热吸附式干燥机均为双塔结构，当机车压缩机起动时，电控器得到通电信号，此时，A塔进入再生状态，B塔进入吸附状态，来自空气压缩机的湿空气由进气阀口进入B塔，经吸附剂吸附后经止回阀供用风设备，而另一小部分干燥风供A塔再生，并把湿空气经排气阀及消音器排出。所以，B塔的吸附与A塔的再生是同时进行的。
当A塔再生到设定的时间时，电控器停止供电。这样两电控阀均失电，两排气阀处于关闭状态，故B塔继续吸附而A塔却停止了再生而进入充气状态，当两塔压力达到均压，这时电控器发出转换电信号进入另一次循环。
这种传统技术对上述工作时间及时序分配，是由CPU的时序控制器已经设定，就不能在工作过程中对时间再作改动了，无法根据用气负载的轻重或露点温度的高低情况来“智能”调整干燥机的工作状态。其造成的后果是造成成品气的大量浪费，或成品气质量不达标的情况。而这种时序控制器由于电子元件多，松散结构，故障率极高，一个小元件出故障会造成整个控制失效。这种时序控制器更不具备压力显示，露点显示，故障报警等等扩展功能，根本无法满足现代铁路机车、地铁、城轨高速发展的自动化要求。因此传统的双塔铁路用空气干燥机，存在太多无法解决的问题，已经越来越无法适 应现代机车高精度刹车系统、气动门、机车气控配件及气支元件的需求了。
通过国内专利文献检索发现有一些相关的文献报道，与本发明有关的主要有以下一些：
1、专利号为CN200820060412.4，名称为“真空吸附式干燥系统”的实用新型专利，该专利公开了一种真空吸附式干燥系统，包含一第一吸附桶、一第二吸附桶、至少二限流件及一真空马达；其中，该第一吸附桶与该第二吸附桶的一端管路连结成一进气口，且与气压源管路连结，该第一吸附桶与该第二吸附桶的另一端管路连结成一出气口，该限流件安装于该第一吸附桶与该第二吸附桶的出气口上，对吸附桶进行限流，该真空马达安装于该第一吸附桶与该第二吸附桶的进气口上，对吸附桶进行抽真空。
2、专利号为CN200820123078.2，名称为“一种控制内燃机车双塔式空气干燥器的电控器”的实用新型专利，该专利公开了一种控制内燃机车双塔式空气干燥器的电控器，其特征在于：它的机芯部分包括电源模块、PLC控制器、第一接触器、第二接触器；直流电压和控制信号分别输入所述电源模块，电源模块的输出作为所述PLC控制器的输入；PLC控制器的输出分别连接所述第一接触器和所述第二接触器，第一接触器和第二接触器的输出分别连接受其控制的电空阀。
3、专利号为CN200820009816.0，名称为“电力机车的空气净化装置”的实用新型专利，该专利公开了一种电力机车的空气净化装置，其包括外部箱体、箱体内设置的空气干燥器、油水分离器及电控器，所述空气干燥器由两个结构相同的干燥塔构成双塔式结构，且所述箱体内壁设有高保温防寒填料，箱体内设有大功率加热器。所述干燥塔为圆筒钢瓶式结构，所述干燥塔包括上部的塔盖、中部的筒体及下部的封头，所述干燥塔上的进气口连接空气压缩机，并由进气连接体上所设的进气阀控制；出气口通往总风缸，由出气连接体上所设的出气止回阀控制；底部封头上的排污口由排气阀控制干燥塔内是否与大气相通；干燥塔塔盖下方设有压紧弹簧通过盘状出气滤网压设于该干燥剂上部。
上述这些专利虽然涉及到了湿空气干燥或空气净化，可仔细分析可以看出，这些专利都没有改变双塔结构的无热吸附式干燥方式，所以桔构复杂，体积大、重量重、零部件多、连接件多、控制管路多、密封点多、故障多的问题仍然没有得到有效解决，因此很有必要对此加以改进。
发明内容
本发明的目的在于针对现有空气干燥或空气净化的结构的存在结构复杂，体积大、 重量重、零部件多、连接件多、控制管路多、密封点多、故障多的问题，提出一种智能控制模块集成式多塔空气干燥方法及其装置，该空气干燥方法及其装置具有体积小、重量轻、组装维护方便、扩容方便、耐腐蚀、零配件少、整体集成、能方便整体更换的特点。
为了实现上述目的，本发明所采取的技术方案是：一种湿空气干燥方法，采用吸附方式处理湿空气，其特点在于，处理湿空气的吸附塔为多个吸附塔组合形成，且每一个吸附塔都为模块化吸附塔，多个模块化的吸附塔组合集成为一体，通过多个模块化集成的吸附塔组合对湿空气进行干燥处理。
进一步地，所述的多个模块化的吸附塔组合集成为一体是将各个吸附塔做成模块，并将与吸附塔相配的过滤器集成到吸附塔模块内，再将这些吸附塔模块统一安装到一个上盖板和一个下盖板之间，并利用上盖板和下盖板作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板和下盖板组合形成一个模块化组合的湿空气压缩机无热吸附空气干燥系统，并以此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。
进一步地，所述的吸附塔模块分成两组，两组吸附塔模块交替进行吸附或再生作业；当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。
进一步地，所述的切换是在上盖板上或下盖板下设有改变吸附塔模块进气或出气通道，并在这些进气或出气通道的出口连接组合电控阀，通过电控阀的自动控制使得吸附塔模块进行吸附或再生交替作业。
进一步地，所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业。
进一步地，所述的电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。
进一步地，所述的PLC控制器通过传感器进行控制，分别通过温度传感器采集温度信号，通过压力传感器采集压力信号，并通过所采集的温度信号和压力信号对干燥机进行控制。
一种实现上述湿空气干燥方法的空气干燥机，包括两个以上的吸附塔，所述的吸附塔为模块化结构，吸附塔的过滤器与吸附塔筒体集成在一起形成吸附塔模块，吸附塔模块统一安装在一个上盖板和下盖板之间，由上盖板和下盖板分别与吸附塔模块筒体的两端连接，并利用上盖板和下盖板作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板和下盖板组合形成一个模块化组合的空气压缩机无热吸附空气干燥系统，并以此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。
进一步地，所述的吸附塔模块分成两组，两组吸附塔模块交替进行吸附或再生作业；当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。
进一步地，所述的切换是在上盖板上或下盖板下设有改变吸附塔模块进气或出气通道，并在这些进气或出气通道的出口连接组合电控阀，通过电控阀的自动控制使得吸附塔模块进行吸附或再生交替作业。
进一步地，所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业。
进一步地，所述的电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。
进一步地，所述的PLC控制器通过对进气口温度传感器进行控制，以确切掌控进气口温度情况，并返馈给PLC控制器显示器，进而掌控进口的温度状态；PLC控制器还对干燥机的出气口压力露点进行监控，显示压力露点，并根据露点温度的高低情况来自动切换吸附塔模块的工作状态来控制进气吸附时间或再生时间，以提高成品气的质量和节约成品气，延长设备的使用寿命。
进一步，所述PLC控制器在气控组合阀消音器处设一压力传感器，采集到的不正常压力信号后反馈到PLC控制器、(当机车因机械阀门故障或电路故障、密封失效，出现长排故障时)给出指令后关闭进入干燥机的进气管道的常开电磁阀门并同时打开旁通管路(抛掉故障干燥机)上的另一常闭阀门为开的状态，使压缩空气直接供给用风设备，达到应急使用，消除机车机破事故的目的。同时发出报警信号以提醒机车乘务员， 返段后作维修处理。
进一步地，所述的电控阀上设有湿空气排出口，在湿空气排出口的出口上接有消音器，通过消音器对排出的湿空气做消音处理。该消音器还具有不会堵塞的功能，优于现有消音器。
进一步地，所述的吸附塔模块采取立式、卧式或侧卧式布置，并保证在各种状态下，液态水排出位于系统的最低点，可自如地将液态水排出干燥机。
本发明的有益效果：本发明采用模块集成式方法，将空气压缩机无热吸附空气干燥系统中的每一个吸附塔与相配的过滤器做成一个吸附塔模块，并将这些吸附塔模块安装到一个上盖板和一个下盖板之间，并利用上盖板和下盖板作为吸附塔模块的进气或出气通道，这样可以有效克服以往干燥系统连接件多、管道多的毛病，从而提高了系统的安全性，减少了系统的故障发生；同时由于将以往多个阀门集成为一个控制阀，并由PLC控制器进行时序控制，大大提高了自动控制的效果，通过对出气端的露点温度的控制(提前或延迟)干燥机的吸附-再生时间的切换，达到减少成品气的消耗、提高成品气的质量，延长设备的使用寿命。
附图说明
图1为本发明一个实施例的结构示意图；
图2为附图1的侧面示意图；
图3为本发明切换原理示意图；
图4为附图1的A-A剖面俯视示意图。
具体实施方式
下面将结合附图和实施例对本发明做进一步的描述。
实施例一
通过附图1-3可以看出本发明为湿空气无热吸附空气干燥机，包括6个吸附塔5，所述的吸附塔5为模块化结构，每一个吸附塔5的上过滤器组6、防松弹簧7、上定位过滤网8和定位挡川9安装在吸附塔5塔筒的上部内面，下过滤器组合3和轴向定位挡川4安装在吸附塔5塔筒的下部内面，上过滤器组6和下过滤器组合3与吸附塔5的筒体和吸附材料11集成在一起形成吸附塔模块，6个吸附塔模块分为两组安装在一个上盖板10和下盖板2之间，由上盖板10和下盖板2分别与吸附塔模块筒体的两端连接，并利用上盖板10和下盖板2作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板和下盖板组合形成一个模块化组合的空气压缩机无热吸附模块式空气干燥系统，并以 此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。两组吸附塔模块，一组为吸附塔组，另一组为再生塔组，二组是交替进行吸附或再生作业，当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。整个空气压缩机无热吸附模块式空气干燥系统通过支架13安装在车体上。
此外，在下盖板2下设有改变吸附塔模块进气或出气通道，使得吸附塔模块进行吸附或再生交替作业的电控阀1，通过电控阀1的自动控制使得吸附塔模块进行吸附或再生交替作业。
所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业；电动控制装置通过一个PLC控制器14按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。PLC控制器在接受压缩机调压器的信号后，转而输出控制电空阀的电信号，并通过电控阀的电动控制装置来操纵电控阀的动作。在压缩机调压器的控制下，干燥机工作流程如下；压缩机起动时，PLC控制器14同时得到“通电”信号。控制器使电控阀1一端处于“得电供气”状态，电控阀另一端处于“失电排气”状态。并以此操纵阀芯15动作。当电空阀1右边处于失电状态而电空阀左边处于得电状态时，阀芯15左移，B组吸附塔模块的排气通道开启，而A组吸附塔模块的排气通道关闭，此时，B组塔进入再生状态。A组塔进入吸附状态，饱和湿空气由空压机进入从进气管道经过模块式五合一空气过滤器后，压缩空气中所携带的大部份水份、油份及灰尘被过滤掉，经风道进入进气阀座，湿空气经打开的进气阀进入左边干燥塔，沿着箭头的流向，下盖板2的风道后，进入前排A组塔经吸附后到达上盖板10流经上盖板上的出风道后，经干燥后的干燥空气借助压力打开上盖板10上出气止回阀，经出气口供给用风设备。而另一路干燥风经上盖板10上的出风道口上的再生孔风道，进入后排B组塔后，提供再生风给B组塔吸附材料解吸、把B组塔内的湿空气带出，经下盖板2上的风道及气控组合阀1的排气阀门出口，穿过消音器口排入大气。
当B组塔再生状态到设定时间时，电控器停止对电空阈左边供电，这时电空阀均处于失电状态，两排气阀亦处于关闭状态。故A组塔继续吸附而B组塔却停止再生。A组塔的干燥空气仍源源充入B组塔，因B组塔无排出使压力逐渐上升，B组塔在这段时 间处于“充气状态”，然后电控器开始向右边供电，A组塔、B组塔再生吸附相互转换，完成转换周期。如此每转换周期改变左右干燥塔的干燥与再生。这样，左右干燥塔反复进行干燥和再生。“充气状态”使两塔压差很低，进气流速缓慢，大大地减少了进气气流对干燥剂的冲击，故称为“柔性转换”。柔性转换极大地减少了吸附材料产生粉末的根源。
PLC控制器14不仅对上述工况实行自动控制，还能对智能模块集成式空气干燥机的整个系统实行自动控制。智能PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制(提前或延迟)干燥机的吸附-再生时间的切换，达到减少成品气的消耗、提高成品气的质量，延长设备的使用寿命。同时还能将采集到的电信号传给显示屏或发出报警信号。还可以对其实现远程控制。PLC控制器通过对进气口温度传感器进行控制，以确切掌控进气口温度情况，并返馈给PLC控制器显示器，以便我们掌控进口的温度状态。PLC控制器14在气控组合阀1消音器12处设一压力传感器，采集到的不正常压力信号后反馈到PLC控制器14、(当机车因机械阀门故障或电路故障、密封失效，出现长排故障时)给出指令后关闭进入干燥机的进气管道的常开电磁阀门并同时打开旁通管路(抛掉故障干燥机)上的另一常闭阀门为开的状态，使压缩空气直接供给用风设备，达到应急使用，消除机车机破事故的目的。同时发出报警信号以提醒机车乘务员，返段后作维修处理。PLC控制器14还对干燥机的出气口压力露点进行监控，并显示压力露点及根据露点温度的高低情况来“智能”切换吸干机的工作状态来控制进气吸附时间或再生时间，以提高成品气的质量和节约成品气，延长设备的使用寿命。
所述的电控阀上设有湿空气排出口，在湿空气排出口的出口上接有消音器13，通过消音器13对排出的湿空气做消音处理。
实施例二
实施例二的基本构成原理与实施例一是一样的，只是所述的吸附塔模块为4个，4个吸附塔模块分为两组，分别斜卧安装在上盖板和下盖板之间，当其中一组进行吸附时，另一组进行再生，在下盖板上设有改变吸附塔模块进气或出气通道，使得吸附塔模块进行吸附或再生交替作业的电控阀，通过电控阀的自动控制使得吸附塔模块进行吸附或再生交替作业。
所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业；电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生 时间的切换。
所述的电控阀的底部设有湿空气排出口，在湿空气排出口的出口上接有消音器，通过消音器对排出的湿空气做消音处理。
实施例三
实施例三的基本构成原理与实施例一是一样的，只是所述的吸附塔模块采取横向卧式安装，吸附塔模块两端的上盖板和下盖板分别成为右盖板和左盖板，且电控阀安装在右盖板上，通过电控阀的自动控制使得吸附塔模块进行吸附或再生交替作业。
所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业；电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。
所述的电控阀的侧面底部设有湿空气排出口，在湿空气排出口的出口上接有消音器，通过消音器对排出的湿空气做消音处理。
通过上述实施例可以看出，本发明可以归纳为一种湿空气干燥方法，采用吸附方式处理湿空气，其特点在于，处理湿空气的吸附塔为多个吸附塔组合形成，且每一个吸附塔都为模块化吸附塔，多个模块化的吸附塔组合集成为一体，通过多个模块化集成的吸附塔组合对湿空气进行干燥处理。
进一步地，所述的多个模块化的吸附塔组合集成为一体是将各个吸附塔做成模块，并将与吸附塔相配的过滤器集成到吸附塔模块内，再将这些吸附塔模块统一安装到一个上盖板和一个下盖板之间，并利用上盖板和下盖板作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板和下盖板组合形成一个模块化组合的湿空气压缩机无热吸附空气干燥系统，并以此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。
进一步地，所述的吸附塔模块分成两组，两组吸附塔模块交替进行吸附或再生作业；当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。
进一步地，所述的切换是在上盖板上或下盖板下设有改变吸附塔模块进气或出气通道，并在这些进气或出气通道的出口连接组合电控阀，通过电控阀的自动控制使得吸附 塔模块进行吸附或再生交替作业。
进一步地，所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业。
进一步地，所述的电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。
进一步地，所述的PLC控制器通过传感器进行控制，分别通过温度传感器采集温度信号，通过压力传感器采集压力信号，并通过所采集的温度信号和压力信号对干燥机进行控制。
很显然，上述实施例只是本发明所列举的几个实例，理解这些实施方式仅用于说明本发明而不用于限制本发明范围，在阅读本发明后，本领域技术人员对本发明的各种等价形式的修改均落于本发明所要求的保护范围之内。

Claims (14)

  1. 一种湿空气干燥方法，其特征在于，采用吸附方式处理湿空气，其特点在于，处理湿空气的吸附塔为多个吸附塔组合形成，且每一个吸附塔都为模块化吸附塔，多个模块化的吸附塔组合集成为一体，通过多个模块化集成的吸附塔组合对湿空气进行干燥处理。
  2. 如权利要求1所述的湿空气干燥方法，其特征在于，所述的无热吸附空气干燥是将吸附塔模块分成两组，两组吸附塔模块交替进行吸附或再生作业；当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。
  3. 如权利要求2所述的湿空气干燥方法，其特征在于，所述的多个模块化的吸附塔组合集成为一体是将各个吸附塔做成模块，并将与吸附塔相配的过滤器集成到吸附塔模块内，再将这些吸附塔模块统一安装到一个上盖板和一个下盖板之间，并利用上盖板和下盖板作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板和下盖板组合形成一个模块化组合的湿空气压缩机无热吸附空气干燥系统，并以此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。
  4. 如权利要求3所述的湿空气干燥方法，其特征在于，所述的吸附塔模块分成两组，两组吸附塔模块交替进行吸附或再生作业；当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。
  5. 如权利要求3所述的湿空气干燥方法，其特征在于，所述的切换是在上盖板上或下盖板下设有改变吸附塔模块进气或出气通道，并在这些进气或出气通道的出口连接组合电控阀，通过电控阀的自动控制使得吸附塔模块进行吸附或再生交替作业。
  6. 如权利要求5所述的湿空气干燥方法，其特征在于，所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业。
  7. 如权利要求6所述的湿空气干燥方法，其特征在于，所述的电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。
  8. 一种权利要求1所述湿空气干燥方法的空气干燥机，包括两个以上的吸附塔，所述的吸附塔为模块化结构，吸附塔的过滤器与吸附塔筒体集成在一起形成吸附塔模块，吸附塔模块统一安装在一个上盖板和下盖板之间，由上盖板和下盖板分别与吸附塔模块筒体的两端连 接，并利用上盖板和下盖板作为吸附塔模块的进气或出气通道；通过吸附塔模块与上盖板和下盖板组合形成一个模块化组合的空气压缩机无热吸附空气干燥系统，并以此模块化组合所形成的无热吸附空气干燥系统对空气压缩机所排出的压缩空气进行无热吸附空气干燥。
  9. 如权利要求8所述的湿空气干燥机，其特征在于，所述的吸附塔模块分成两组，两组吸附塔模块交替进行吸附或再生作业；当一组在进行吸附时，另一组则进行再生处理；压缩空气输入到两组中的一组吸附塔模块进行吸附处理，而另一组吸附塔模块则同时进行再生处理；在进行吸附的吸附塔模块吸附饱和后将进行切换，由吸附改为进行再生处理，而另一组将也进行切换，由再生处理改为吸附。
  10. 如权利要求9所述的湿空气干燥机，其特征在于，所述的切换是在上盖板上或下盖板下设有改变吸附塔模块进气或出气通道，并在这些进气或出气通道的出口连接组合电控阀，通过电控阀的自动控制使得吸附塔模块进行吸附或再生交替作业。
  11. 如权利要求10所述的湿空气干燥机，其特征在于，所述的自动控制是在电控阀上设置电动控制装置，通过电动控制装置控制电控阀进行转换作业。
  12. 如权利要求11所述的湿空气干燥机，其特征在于，所述的电动控制装置通过一个PLC控制器按照需要进行时序控制，PLC控制器采用可编程逻辑控制技术，通过对出气端的露点温度的控制吸附塔模块的吸附或再生时间的切换。
  13. 如权利要求12所述的湿空气干燥机，其特征在于，所述的PLC控制器通过对进气口温度传感器进行控制，以确切掌控进气口温度情况，并返馈给PLC控制器显示器，进而掌控进口的温度状态；PLC控制器还对干燥机的出气口压力露点进行监控，显示压力露点，并根据露点温度的高低情况来自动切换吸附塔模块的工作状态来控制进气吸附时间或再生时间，以提高成品气的质量和节约成品气，延长设备的使用寿命。
  14. 如权利要求13所述的湿空气干燥机，其特征在于，所述PLC控制器在气控组合阀消音器处设一压力传感器，采集到的不正常压力信号后反馈到PLC控制器、(当机车因机械阀门故障或电路故障、密封失效，出现长排故障时)给出指令后关闭进入干燥机的进气管道的常开电磁阀门并同时打开旁通管路(抛掉故障干燥机)上的另一常闭阀门为开的状态，使压缩空气直接供给用风设备，达到应急使用，消除机车机破事故的目的。同时发出报警信号以提醒机车乘务员，返段后作维修处理。
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