CN205235716U - Automatically controlled desicator - Google Patents

Abstract

The utility model discloses an automatically controlled desicator, including drying chamber and valve body assembly, the drying chamber is equipped with filter core, annular channel, molecular sieve, last air inlet, gas outlet and gas vent, inlet channel, exhaust passage, the blowback passageway of being equipped with of valve body assembly, compressed air that the air compressor machine came out get into the molecular sieve and discharge through the gas outlet through air inlet, inlet channel, filter core and annular channel, exhaust passage and gas vent intercommunication, blowback passageway and molecular sieve intercommunication, the exhaust passage is equipped with first valve assembly, the blowback passageway is equipped with second valve assembly, first valve assembly and second valve assembly are controlled by the solenoid valve, gas outlet department is equipped with pressure sensor, pressure sensor and solenoid valve are connected with ecu. The utility model discloses a technical scheme, constitute electrical system by pressure sensor, solenoid valve, ecu, control through automatically controlled mode, realize the accurate control of pressure.

Description

A kind of automatically controlled drier

Technical field

The utility model relates to auto parts and components, relates in particular to automatically controlled drier.

Background technology

Air dryer utilizes a molecular sieve to remove airborne moisture content, thereby has effectively solved because of pondingCause the events such as metalwork corrosion in brakes, rubber parts be full of cracks, lubricating grease decomposition, pipeline blockage with greasy dirtBarrier, has extended the service life of braking member, and has ensured that whole device can not be frozen in, and has improved driving peaceQuan Xing.

When its pressure unloading is adjusted with falling pressure test when common drier assembly test, can not hold its essenceExactness.

Utility model content

Technical problem to be solved in the utility model is just to provide a kind of automatically controlled drier, pressure unloading and fallingPressure all can accurately be controlled.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of automatically controlled drier, bagDraw together drying chamber and valve body assembly, described drying chamber is provided with filter core, circular passage, molecular sieve, and described valve body is totalOne-tenth is provided with air inlet, gas outlet and exhaust outlet, inlet channel, exhaust passage, blowback passage, air compressor machineCompressed air out enters molecular sieve through air inlet, inlet channel, filter core and circular passage and through gas outletDischarge, described exhaust passage is communicated with exhaust outlet, and described blowback passage is communicated with molecular sieve, and described exhaust is logicalRoad is provided with the first valve assembly, and described blowback passage is provided with the second valve assembly, described the first valve assembly andThe second valve assembly is controlled by magnetic valve, and described gas outlet place is provided with pressure sensor, described pressureSensor goes out air pressure for detection of gas outlet place, and described pressure sensor and magnetic valve and electronic control unit connectConnect;

In the time that pressure sensor detects that gas outlet place air pressure exceedes predetermined value, described electronic control unit is to electricityMagnet valve is controlled, and the first valve assembly is opened, compressed air through exhaust passage, exhaust outlet discharge, withTime the second valve assembly open, compressed air, by molecular sieve, circular passage, filter screen, will be adsorbed on moleculeMoisture on sieve, by the blowback of blowback air-flow, is finally discharged from exhaust outlet; When detecting, pressure sensor gives vent to angerWhen mouth place air pressure drops to predetermined value, described electronic control unit is by making the first valve total to the control of magnetic valveOne-tenth and the second valve assembly are closed.

Preferably, on described valve body assembly, heater assembly is installed.

Preferably, described valve body assembly is provided with muffler ASSY in exhaust ports.

The technical solution adopted in the utility model, by pressure sensor, magnetic valve, electronic control unit groupBecome electric-control system, control by automatically controlled mode, realize the accurate control of pressure.

Brief description of the drawings

Below in conjunction with the drawings and specific embodiments, the utility model is further described:

Fig. 1 is front view of the present utility model;

Fig. 2 be in Fig. 1 A-A to cross-sectional schematic;

Fig. 3 is the partial sectional view of valve body assembly.

Detailed description of the invention

As shown in Figure 1 to Figure 3, a kind of automatically controlled drier, comprises drying chamber and valve body assembly 31, drying chamberBe provided with interior tank body 14, outer tank body 12, interior tank body 14 is located at outer tank body 12 inside, interior tank body 14 external annulusAnd between outer tank body 12 internal ring walls, be provided with circular passage D, in interior tank body 14, be provided with molecular sieve 15, interior tank body14 upper opening places are provided with end cap 13, between end cap 13 and the inner top surface of outer tank body 12, are provided with Compress Spring 11,Interior tank base is provided with cotton pad 16, and outer tank base is provided with support assembly 19, support assembly 19 and interior tank bodyBetween bottom surface, be provided with sealing ring 17 and filter core 18, support assembly center is provided with connecting hole, and described connecting hole passes throughConnecting bolt 20 is connected with valve body assembly 31, is provided with an O between support assembly 19 and valve body assembly 31Shape sealing ring 21 and rectangular seal 22 seal.

Valve body assembly 31 is provided with air inlet B, gas outlet K and exhaust outlet L, the first valve port G, secondValve port J, the 3rd valve port H, and C chamber, E chamber, F chamber, I chamber, the first magnetic valve assembly, the second electromagnetismValve assembly.

Wherein, the first magnetic valve assembly is by the first Spool assembly 3, the first valve assembly 4, the first valve bulletSpring 1 forms. The second magnetic valve assembly is by second valve core assembly 5, the second valve assembly 6, second valve door spring10 compositions. The first magnetic valve assembly, the second magnetic valve assembly are controlled by coil assembly 2.

K place, gas outlet is provided with valve rod assembly, and valve rod assembly is valve rod the 9, the 20 shape sealing ring 8, taperThe sub-assembly that spring 7 forms.

The bottom of valve body assembly 31 is provided with lower cover 28, and lower cover 28 tops use back-up ring 26 to be fixed on valve by holeIn the installing hole of body assembly bottom, in lower cover, be provided with piston assembly, piston assembly by piston 23, valve sheet 24,Packing ring 25, drain tap spring 27 form.

In addition, heater assembly 30 is installed on valve body assembly 31, valve body assembly 31 is installed in exhaust portsThere is muffler ASSY 29. Heater assembly 30 can prevent that the elements such as valve are frozen in, thereby can avoid work eventBarrier occurs, and muffler ASSY 29 can reduce noise.

Operation principle:

Enter C chamber by air compressor machine compressed air out through air inlet B, by filter core 18, circular passage DArrive drier top, compressed air entered molecular sieve 15, and its moisture is absorbed by molecular sieve 15, after being driedCompressed air enter E chamber, and enter F chamber by an inclined hole, push valve rod assembly open, compressed air is by FChamber enters gas outlet K. In the time that system air pressure exceedes predetermined value, pressure sensor carries the signal of telecommunication to coil assembly2, electromagnetic attracting force the second valve assembly 6 producing in now energising situation, away from valve port G, is opened second valveDoor assembly 6, makes compressed air enter in I chamber through an inclined hole by the first valve port G, promotes 23 grams, pistonTake drain tap spring 27 power and move down, thereby open the second valve port J, the compressed air in C chamber is through secondValve port J discharges from exhaust outlet L, air compressor machine off-load.

In air compressor machine off-load, the first valve assembly 4 is subject to electromagnetic attracting force and opens, Partial shrinkage skyGas enters E chamber by the 3rd valve port H through an inclined hole, then by molecular sieve 15, circular passage D, filter core18, by be adsorbed on moisture on molecular sieve by the blowback of blowback air-flow to C chamber, and through the second valve port J fromExhaust outlet L discharges.

In the time that gas outlet K pressure drops to predetermined value, pressure sensor no longer transmission of electric signals to coil assembly 2,After power-off, the second valve assembly 6 and the first valve assembly 4 are not subject to electromagnetic force influence and close, and piston 23 is with gasThat presses reduces, move under the effect of drain tap spring 27 power and close the second valve port J, air compressor machine recover toSystem air feed, whole dry run restarts.

Three major functions:

1. drier unloading function: when compressed air rises to setting pressure, ECU is given in the pressure sensor number of delivering a letter,The ECU again number of delivering a letter gives magnetic valve, thereby opens magnetic valve, and compressed air enters I chamber, and gas outlet air pressure promotesPiston moves down, and opens exhaust outlet J, and drier air inlet air pressure leads to atmosphere, realizes drier unloading function.

2. blowing function: synchronize with function 1, magnetic valve 1,4 interfaces are given in the ECU number of delivering a letter, thereby open magnetic valve,Dried compressed air in gas outlet is to E chamber ventilation, and blowback molecular sieve makes moisture on molecular sieve to exhaustMouth is discharged, and realizes blowing function.

3. time seat function: when gas receiver air pressure is during lower than setting pressure, ECU is given in the pressure sensor number of delivering a letter, then bySolenoid valve interface 1,4 and 3,4 is given in the ECU number of delivering a letter, thus shut electromagnetic valve, and I chamber air pressure is arranged to magnetic valveGas, piston playbacks and closes exhaust outlet under spring force effect, and air compressor machine compressed air is again to drierAir inlet air feed.

Claims (3)

1. an automatically controlled drier, comprises drying chamber and valve body assembly, described drying chamber be provided with filter core, circular passage,Molecular sieve, described valve body assembly be provided with air inlet, gas outlet and exhaust outlet, inlet channel, exhaust passage,Blowback passage, air compressor machine compressed air out enters through air inlet, inlet channel, filter core and circular passageMolecular sieve is also discharged through gas outlet, and described exhaust passage is communicated with exhaust outlet, described blowback passage and molecular sieveBe communicated with, it is characterized in that: described exhaust passage is provided with the first valve assembly, described blowback passage is provided with secondValve assembly, described the first valve assembly and the second valve assembly are controlled by magnetic valve, described in give vent to angerMouth place is provided with pressure sensor, and described pressure sensor goes out air pressure for detection of gas outlet place, and described pressure passesSensor and magnetic valve are connected with electronic control unit;

In the time that pressure sensor detects that gas outlet place air pressure exceedes predetermined value, described electronic control unit is to electricityMagnet valve is controlled, and the first valve assembly is opened, compressed air through exhaust passage, exhaust outlet discharge, withTime the second valve assembly open, compressed air, by molecular sieve, circular passage, filter screen, will be adsorbed on moleculeMoisture on sieve, by the blowback of blowback air-flow, is finally discharged from exhaust outlet; When detecting, pressure sensor gives vent to angerWhen mouth place air pressure drops to predetermined value, described electronic control unit is by making the first valve total to the control of magnetic valveOne-tenth and the second valve assembly are closed.

2. the automatically controlled drier of one according to claim 1, is characterized in that: on described valve body assembly, installHaving heaters assembly.

3. the automatically controlled drier of one according to claim 1, is characterized in that: described valve body assembly is in exhaustMouth place is provided with muffler ASSY.