A kind of modular air drying machine
Technical field
The utility model relates to a kind of humid air drying device of air compressor, particularly a kind of air compressor without hot absorption type modular drying device; Be mainly used in sending the humid air of discharge to carry out drying process to air compressor.
Background technology
Basic functional principle without hot adsorbing air drier is the mode of " pressure-variable adsorption ", when moisture compressed air is at high pressure by adsorbent moisture during adsorbent bed, when low pressure, the moisture of adsorbent is by " " and return to gas phase, therefore adsorbent dewaters " regeneration " in desorb.And the air regenerating desorb comes from a part of dry gas that the machine exports.Current use without hot adsorbing air drier main body by two adsorption towers. intake valve, air bleeding valve, blowoff valve, air outlet check valve, electric controller, electrically-controlled valve, the critical piece such as connector composition.This drier material is mainly carbon steel material manufacture, adopt anticorrosive paint and finish paint antirust treatment, and be the pattern of loose tangerine structure, there is tangerine structure complicated, volume is large, Heavy Weight, parts are many, connector is many, control piper is many, seal point is many so fault is many, because the fault of each connector of valve can cause long air draft time serious, cause the major accident that locomotive destroys, bring harm to locomotive driving.
Double-Tower Structure is without hot absorption drier due to what generally use at present, when locomotive compressor start, electric controller is energized signal, now, A tower enters reproduced state, and B tower enters adsorbed state, humid air from air compressor enters B tower by intake valve port, after adsorbent through check-valves for wind devices, and another fraction dry wind is for the regeneration of A tower, and humid air through air bleeding valve and muffler discharge.So the absorption of B tower and the regeneration of A tower are carried out simultaneously.
When A tower regenerates the time of setting, electric controller is stopped power supply.The equal dead electricity of such two electrically-controlled valve, two air bleeding valves are in closed condition, and GuBTa continues absorption and A tower stopped regeneration and enters inflated condition, and all press when two pressure towers reach, at this moment electric controller sends switching electrical signals and enters another circulation.
This conventional art distributed above-mentioned working time and sequential, set by the time schedule controller of CPU, just can not remake the time in the course of the work and change, cannot according to the duty carrying out " intelligence " adjustment drying machine by the weight of gas load or the height situation of dew-point temperature.Its consequence caused causes a large amount of wastes of finished product gas, or the situation of finished product gas quality dissatisfaction.And this time schedule controller due to electronic component many, loose structure, fault rate is high, and a small components is out of order and whole control can be caused to lose efficacy.This time schedule controller does not more possess pressure display, and dew point shows, and fault alarm etc. expanded function, cannot meet the automation requirement of Modern railroad locomotives, subway, city rail high speed development at all., there is too many insurmountable problem in therefore traditional double tower railway dried-air drier, more and more cannot adapt to modern locomotive high accuracy brake system, pneumatic door, locomotive gas control accessory and gas and prop up the demand of element.
Find that there is some relevant bibliographical informations by the domestic Searches of Patent Literature, mainly contain relevant with the utility model is following:
1, the patent No. is CN200820060412.4, name is called the utility model patent of " vacuum adsorption type drying system ", which disclose a kind of vacuum adsorption type drying system, comprise one first adsorption barrel, one second adsorption barrel, at least two constrictions and a vacuum motor; Wherein, one end pipeline of this first adsorption barrel and this second adsorption barrel connects to an air inlet, and link with pneumatic supply pipeline, the other end pipeline of this first adsorption barrel and this second adsorption barrel connects to a gas outlet, this constriction is installed on the gas outlet of this first adsorption barrel and this second adsorption barrel, carry out current limliting to adsorption barrel, this vacuum motor is installed on the air inlet of this first adsorption barrel and this second adsorption barrel, vacuumizes adsorption barrel.
2, the patent No. is CN200820123078.2, name is called the utility model patent of " a kind of electric controller of controlling combustion engine car tower air dryer ", which disclose a kind of electric controller of controlling combustion engine car tower air dryer, it is characterized in that: its core section comprises power module, PLC, the first contactor, the second contactor; DC voltage and control signal input described power module respectively, and the output of power module is as the input of described PLC; The output of PLC connects described first contactor and described second contactor respectively, and the first contactor and the output of the second contactor are connected the electric pneumatic valve controlled by it respectively.
3, the patent No. is CN200820009816.0, name is called the utility model patent of " air cleaning unit of electric locomotive ", which disclose a kind of air cleaning unit of electric locomotive, it comprises the air dryer, oil water separator and the electric controller that arrange in external box of microvave, casing, described air dryer forms double-tower type structure by the drying tower that two structures are identical, and described cabinet wall is provided with high heat-insulating and cold filler, is provided with high-power heater in casing.Described drying tower is cylinder steel bottle type structure, and described drying tower comprises the tower lid on top, the cylindrical shell at middle part and the end socket of bottom, and the air inlet on described drying tower connects air compressor, and is controlled by intake valve set on air inlet connector; Gas outlet leads to total reservoir, is controlled by air outlet check valve set on connector of giving vent to anger; Whether the sewage draining exit on bottom bulkhead is controlled to communicate with air in drying tower by air bleeding valve; Be provided with holddown spring below drying tower tower lid to be installed with in this drier top by plate-like filter screen of giving vent to anger.
Although these patents above-mentioned have related to locomotive air drying or purification of air, can carefully analyze and can find out, these patents all do not change Double-Tower Structure without hot absorbed type drying mode, so tangerine structure is complicated, the problem that volume is large, Heavy Weight, parts are many, connector is many, control piper is many, seal point is many, fault is many is not still effectively solved, and is therefore necessaryly improved this.
Utility model content
The purpose of this utility model be the Double-Tower Structure of or purification of air dry for existing locomotive air without hot absorbed type drying mode and device thereof, there is tangerine structure complicated, the problem that volume is large, Heavy Weight, parts are many, connector is many, control piper is many, seal point is many, fault is many, a kind of intelligent control module integrated form double-tower air drying device is proposed, this air dry-set have volume little, lightweight, assemble easy to maintenance, dilatation convenient, corrosion-resistant, spare and accessory parts are few, over all Integration, can facilitate the feature of integral replacing.
To achieve these goals, technical solution adopted in the utility model is: a kind of air compressor is without hot adsorption module type dried-air drier, comprise plural adsorption tower, described adsorption tower is modular construction, the filter of adsorption tower and adsorption tower cylindrical shell integrate and form adsorption tower module, adsorption tower module is unified is arranged on one between upper cover plate and lower cover, be connected with the two ends of adsorption tower module cylindrical shell respectively with lower cover by upper cover plate, and utilize upper cover plate and lower cover as the air inlet of adsorption tower module or outlet passageway; Be combined to form the air compressor of a modular combination without hot absorbed air drying system by adsorption tower module and upper cover plate and lower cover, and formed with this modular combination carry out without hot absorbed air dry without hot absorbed air drying system to the compressed air that air compressor is discharged.
Further, described adsorption tower module is divided into two groups, and two groups of adsorption tower modules hocket and adsorb or regeneration operation; When one group when adsorbing, another group then carries out regeneration process; One group of adsorption tower module that compressed air is input in two groups carries out adsorption treatment, and another group adsorption tower module then carries out regeneration process simultaneously; To switch after the adsorption tower module absorption carrying out adsorbing is saturated, and changed into by absorption and carry out regeneration process, and another group also will switch, and changes absorption into by regeneration process.
Further, on upper cover plate or lower cover have and change adsorption tower module air inlet or outlet passageway, make adsorption tower module carry out adsorbing or regenerating the electrically-controlled valve of alternately operating, make adsorption tower module carry out adsorbing or regenerating alternately operating by the automatic control of electrically-controlled valve.
Further, described automatic control arranges electric controller in electrically-controlled valve, controls electrically-controlled valve carry out conversion process by electric controller; Electric controller carries out SECO as required by a P L C controller, and P L C controller adopts Programmable logical controller technology, by absorption or the switching of recovery time of the control adsorption tower module of the dew-point temperature to outlet side.
Further, described P L C controller establishes a pressure sensor at gas control combination valve muffler place, P L C controller is fed back to, (when locomotive is because of machinery valve fault or fault, seal failure after the abnormal pressure signal collected, when occurring that long troubleshooting hinders) provide instruction after close the normally open solenoid valve door that enters the admission line of drying machine and open the state that another normal closed gate on bypass line (jettisoning fault drying machine) is out simultaneously, make compressed air directly supply wind devices, reach Emergency use, eliminate the object of locomotive accident of locomotive defect.Send alarm signal to remind engine drivers in locomotive depot simultaneously, return Duan Houzuo maintenance process.
Further, described electrically-controlled valve is provided with humid air outlet, and the outlet of humid air outlet is connected to muffler, does noise reduction process by muffler to the humid air of discharging.This muffler also has the function that can not block, and is better than existing muffler
Further, described adsorption tower module takes vertical, horizontal or lateral recumbent posture layout, and ensures that under various regimes, aqueous water discharges the minimum point of the system that is positioned at, and freely aqueous water can be discharged drying machine.
The beneficial effects of the utility model: the utility model adopts integrated modular method, air compressor is made an adsorption tower module without each adsorption tower in hot absorbed air drying system and the filter matched, and these adsorption tower modules are installed between a upper cover plate and a lower cover, and utilize upper cover plate and lower cover as the air inlet of adsorption tower module or outlet passageway, can effectively overcome the defect that drying system connector is many, pipeline is many in the past like this, thus improve the security of system, the fault decreasing system occurs; Simultaneously owing to will be integrated into a control valve by multiple valve in the past, and carry out SECO by P L C controller, substantially increase the effect automatically controlled, by the switching of the adsorption-regeneration time of control (shift to an earlier date or the postpone) drying machine of the dew-point temperature to outlet side, reach the consumption reducing finished product gas, the quality improving finished product gas, the service life of extension device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the side schematic view of accompanying drawing 1;
Fig. 3 is the utility model switching principle schematic diagram;
Fig. 4 is the A-A section schematic top plan view of accompanying drawing 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment one
Can find out that the present invention is that air compressor is without hot adsorption module type dried-air drier by accompanying drawing 1-3, comprise more than 2 adsorption towers 5, described adsorption tower 5 is modular construction, the upper filter set 6 of adsorption tower 5, locking spring 7, upper location screen pack 8 and gear river 9, location are arranged on the upper part of adsorption tower cylindrical shell, lower combination of filters 3 and axial location gear river 4 are arranged in the lower end barrel of adsorption tower cylindrical shell, upper and lower combination of filters and adsorption tower cylindrical shell integrate and form adsorption tower module, more than 2 adsorption tower modules are divided into two groups to be arranged between a upper cover plate 10 and lower cover 2, be connected with the two ends of adsorption tower module cylindrical shell respectively with lower cover 2 by upper cover plate 10, and utilize upper cover plate 10 and lower cover 2 as the air inlet of adsorption tower module or outlet passageway, be combined to form the air compressor of a modular combination without hot adsorption module type air dryer systems by adsorption tower module and upper cover plate and lower cover, and formed with this modular combination carry out without hot absorbed air dry without hot absorbed air drying system to the compressed air that air compressor is discharged.Two groups of adsorption tower modules, one group is adsorption tower group, and another group is regenerator group, and two groups is hocket absorption or regeneration operation, and when one group when adsorbing, another group then carries out regeneration process; One group of adsorption tower module that compressed air is input in two groups carries out adsorption treatment, and another group adsorption tower module then carries out regeneration process simultaneously; To switch after the adsorption tower module absorption carrying out adsorbing is saturated, and changed into by absorption and carry out regeneration process, and another group also will switch, and changes absorption into by regeneration process.Whole air compressor is arranged on car body by support 13 without hot adsorption module type air dryer systems.
In addition, have at lower cover 2 and change adsorption tower module air inlet or outlet passageway, make adsorption tower module carry out adsorbing or regenerating the electrically-controlled valve 1 of alternately operating, make adsorption tower module carry out adsorbing or regenerating alternately operating by the automatic control of electrically-controlled valve 1.
Described automatic control arranges electric controller in electrically-controlled valve, controls electrically-controlled valve carry out conversion process by electric controller; Electric controller carries out SECO as required by a P L C controller 14, and P L C controller 14 adopts Programmable logical controller technology, by absorption or the switching of recovery time of the control adsorption tower module of the dew-point temperature to outlet side.P L C controller 14 after the signal accepting compressor pressure regulator, then exports the signal of telecommunication controlling electric pneumatic valve, and is handled the action of electrically-controlled valve by the electric controller of electrically-controlled valve.Under the control of compressor pressure regulator, drying machine workflow is as follows; During compressor start, P L C controller 14 obtains " energising " signal simultaneously.Controller makes electrically-controlled valve 1 one end be in " obtaining electric air feed " state, state that the electrically-controlled valve other end is in " dead electricity exhaust ".And handle spool 15 action with this.When be on the right of electric pneumatic valve 1 power failure state and the electric pneumatic valve left side be in electricity condition time, spool 15 moves to left, and the exhaust passage of B group adsorption tower module is opened, and the closedown of the exhaust passage of A group adsorption tower module, and now, B group tower enters reproduced state.A group tower enters adsorbed state, saturated moist air is entered from admission line after modular five in one air cleaner by air compressor machine, most moisture content entrained in compressed air, oil content and dust are filtered, inlet valve seat is entered through air channel, the intake valve of humid air through opening enters left side drying tower, along the flow direction of arrow, behind the air channel of lower cover 2, enter after front-seat A group tower arrives the exhaust passage that upper cover plate 10 flows through on upper cover plate after absorption, dry air after drying opens air outlet check valve on upper cover plate 10 by pressure, through gas outlet supply wind devices.And the air channel, regeneration hole on the air-out road junction of another road dry wind on upper cover plate 10, after entering rear row B group tower, there is provided regeneration wind to B group tower desorbed of adsorbed materials, the humid air in B group tower is taken out of, the drain tap outlet of the air channel on lower cover 2 and gas control combination valve 1, enters air through muffler mouth.
When B group tower reproduced state is to setting-up time, electric controller stops powering to the empty threshold left side of electricity, and at this moment electric pneumatic valve is all in power failure state, and two air bleeding valves are also in closed condition.Therefore A group tower continue absorption and B group tower stop regenerate.The dry air of A group tower is still filled with B group tower in a steady stream, and because B group tower makes pressure rise gradually without discharge, B group tower is being in " inflated condition " during this period of time, and then electric controller starts to power to the right, and A group tower, B group tower regenerative adsorption are changed mutually, complete the change-over period.The drying of so per change-over period change left and right drying tower and regeneration.Like this, left and right drying tower carries out drying and regeneration repeatedly." inflated condition " makes two tower pressure reduction very low, and induction air flow ratio is slow, greatly reduces the impact of charge air flow to drier, therefore is called " flexible conversion ".Flexible conversion considerably reduces the root that sorbing material produces powder.
P L C controller 14 is not only carried out above-mentioned operating mode and is automatically controlled, and can also carry out automatically control the whole system of intelligent object integrated air drying machine.Intelligence P L C controller adopts Programmable logical controller technology, by the switching of the adsorption-regeneration time of control (shift to an earlier date or the postpone) drying machine of the dew-point temperature to outlet side, reach the consumption reducing finished product gas, the quality improving finished product gas, the service life of extension device.The signal of telecommunication collected can also be passed to display screen or send alarm signal simultaneously.Long-distance Control can also be realized to it.P L C controller, by controlling air inlet thermistor, definitely to control air inlet temperature situation, and returns P L C controller display of feeding, so that we control the state of temperature of import.P L C controller 14 establishes a pressure sensor at gas control combination valve 1 muffler 12 place, P L C controller 14 is fed back to, (when locomotive is because of machinery valve fault or fault, seal failure after the abnormal pressure signal collected, when occurring that long troubleshooting hinders) provide instruction after close the normally open solenoid valve door that enters the admission line of drying machine and open the state that another normal closed gate on bypass line (jettisoning fault drying machine) is out simultaneously, make compressed air directly supply wind devices, reach Emergency use, eliminate the object of locomotive accident of locomotive defect.Send alarm signal to remind engine drivers in locomotive depot simultaneously, return Duan Houzuo maintenance process.P L C controller 14 is also monitored the gas outlet pressure leak source of drying machine, and show pressure leak source and control air inlet adsorption time or recovery time according to the duty of height situation next " intelligence " the switching dryer of dew-point temperature, to improve the quality of finished product gas and to save finished product gas, the service life of extension device.
Described electrically-controlled valve is provided with humid air outlet, and the outlet of humid air outlet is connected to muffler 13, does noise reduction process by muffler 13 to the humid air of discharging.
Embodiment two
The basic comprising principle of embodiment two is the same with embodiment one, just described adsorption tower module is 4,4 adsorption tower modules are divided into two groups, horizontally-inclined is arranged between upper cover plate and lower cover respectively, when wherein one group adsorb time, another group regenerates, lower cover is provided with and changes adsorption tower module air inlet or outlet passageway, make adsorption tower module carry out adsorbing or regenerating the electrically-controlled valve of alternately operating, make adsorption tower module carry out adsorbing or regenerating alternately operating by the automatic control of electrically-controlled valve.
Described automatic control arranges electric controller in electrically-controlled valve, controls electrically-controlled valve carry out conversion process by electric controller; Electric controller carries out SECO as required by a P L C controller, and P L C controller adopts Programmable logical controller technology, by absorption or the switching of recovery time of the control adsorption tower module of the dew-point temperature to outlet side.
The bottom of described electrically-controlled valve is provided with humid air outlet, and the outlet of humid air outlet is connected to muffler, does noise reduction process by muffler to the humid air of discharging.
Embodiment three
The basic comprising principle of embodiment three is the same with embodiment one, just described adsorption tower module takes transverse horizontal to install, upper cover plate and the lower cover at adsorption tower module two ends become right cover plate and left cover respectively, and electrically-controlled valve is arranged on right cover plate, adsorption tower module is made to carry out adsorbing or regenerating alternately operating by the automatic control of electrically-controlled valve.
Described automatic control arranges electric controller in electrically-controlled valve, controls electrically-controlled valve carry out conversion process by electric controller; Electric controller carries out SECO as required by a P L C controller, and P L C controller adopts Programmable logical controller technology, by absorption or the switching of recovery time of the control adsorption tower module of the dew-point temperature to outlet side.
The side bottom of described electrically-controlled valve is provided with humid air outlet, and the outlet of humid air outlet is connected to muffler, does noise reduction process by muffler to the humid air of discharging.
Can be found out by above-described embodiment, the utility model can be summarized as a kind of air compressor of locomotive without hot absorbed air drying means, adopt integrated modular method, air compressor of locomotive is made an adsorption tower module without each adsorption tower in hot absorbed air drying system, and the filter matched with adsorption tower is integrated in adsorption tower module, be installed to unified for these adsorption tower modules between a upper cover plate and a lower cover again, and utilize upper cover plate and lower cover as the air inlet of adsorption tower module or outlet passageway; Be combined to form the air compressor of locomotive of a modular combination without hot absorbed air drying system by adsorption tower module and upper cover plate and lower cover, and carry out without hot absorbed air dry without hot absorbed air drying system to the compressed air that air compressor is discharged with the locomotive that this modular combination is formed.
Further, described is that adsorption tower module is divided into two groups without hot absorbed air drying, and two groups of adsorption tower modules hocket and adsorb or regeneration operation; When one group when adsorbing, another group then carries out regeneration process; One group of adsorption tower module that compressed air is input in two groups carries out adsorption treatment, and another group adsorption tower module then carries out regeneration process simultaneously; To switch after the adsorption tower module absorption carrying out adsorbing is saturated, and changed into by absorption and carry out regeneration process, and another group also will switch, and changes absorption into by regeneration process.
Further, described switching is on upper cover plate or lower cover has change adsorption tower module air inlet or outlet passageway, make adsorption tower module carry out adsorbing or regenerating the electrically-controlled valve of alternately operating, make adsorption tower module carry out adsorbing or regenerating alternately operating by the automatic control of electrically-controlled valve.
Further, described automatic control arranges electric controller in electrically-controlled valve, controls electrically-controlled valve carry out conversion process by electric controller; Electric controller carries out SECO as required by a P L C controller, and P L C controller adopts Programmable logical controller technology, by absorption or the switching of recovery time of the control adsorption tower module of the dew-point temperature to outlet side.
Further, described P L C controller, by controlling air inlet thermistor, definitely to control air inlet temperature situation, and returns P L C controller display of feeding, and then controls the state of temperature of import; P L C controller is also monitored the gas outlet pressure leak source of drying machine, display pressure leak source, and control air inlet adsorption time or recovery time according to the automatically switch duty of adsorption tower module of the height situation of dew-point temperature, to improve the quality of finished product gas and to save finished product gas, the service life of extension device.
Obviously; above-described embodiment is the several examples cited by the utility model; understand these embodiments and be only not used in restriction the utility model scope for illustration of the utility model; after reading the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model all falls within the protection domain required by the utility model.