CN2206664Y

CN2206664Y - Air water separator of compressed air freeze dry machine

Info

Publication number: CN2206664Y
Application number: CN 94244987
Authority: CN
Inventors: 詹泉耿; 李申; 陈荣耀; 陈杭生
Original assignee: JIAMEI PURIFICATION EQUIPMENT
Current assignee: JIAMEI PURIFICATION EQUIPMENT
Priority date: 1994-11-07
Filing date: 1994-11-07
Publication date: 1995-09-06
Anticipated expiration: 2004-11-07

Abstract

The utility model relates to an air water separator used for a compressed air freeze dry machine, comprising a detachable pressure vessel; an air inlet pipe, an air outlet and a water discharge outlet are arranged on the wall of the vessel; the inner wall of the vessel is connected with a set of filter elements through a partition board; each filter element comprises a filter screen with a micro filtration pore; one end surface of the filter screen adheres to the partition board; the other end surface adheres to a cover board; a screw bolt with nuts is penetrated between the cover board and the partition board; the screw bolt with nuts can make the filter elements compose into the integration; the integration is connected with the integration; a via hole is arranged on the partition board positioned in the space of the filter elements. The separator of the utility model can the drying degree of the compressed air can drop from-17 DEG C to-23 DEG C.

Description

Air water separator of compressed air freeze dry machine

The utility model is a kind of gas fractionation unit, in particular for the moisture trap in the freezing dryer for compressed air.

The existing moisture trap that is used for freezing dryer for compressed air can be seen from Fig. 4.Wherein Fig. 4 a is a cyclone separating, and Fig. 4 b is a baffle-type; The former has tangential admission pipe 2 ' at the last wall of pressure vessel 1 ', the top is taken tracheae 3 ', bottom band drainpipe 4 ' out of, and gas is realized the centrifugation of air water by its high-speed rotational that forms in device; The latter is at pressure vessel 1 " wall on have air inlet pipe 2 ", escape pipe 3 ", drainpipe 4 ", the device inwall is equipped with the baffle plate 5 " and a filter screen 6 that is formed by stacking by multilayer stainless steel steel wire " that is provided with along airflow direction, realizes the gas-water separation of gas by the filtration with the collision of baffle plate and filter screen.The former is difficult for isolating the less mist pearl of quality in the air-flow; The contained filter area of latter Ze Yin unit volume is little, filtering accuracy is poor, and gas-flow resistance is big, so volume is big, the pressure of drying effect difference and air-flow falls greatly.Usually, the compressed air drying degree after existing moisture trap separates only can make dew point reach about-17 ℃, can not satisfy the requirement of pneumatic equipment to aridity.

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, and the moisture trap of the freezing dryer for compressed air that a kind of volume is little, filtering accuracy is high and gas-flow resistance is little is provided.

The moisture trap of the utility model freezing dryer for compressed air includes a removable pressure vessel of pressing in bearing, have the air inlet pipe that is connected with the refrigerating evaporator in freezing dryer for compressed air outlet on the chamber wall, with escape pipe, the discharge outlet that the cooler air inlet is connected of giving in the freezing dryer for compressed air, container inner wall has a dividing plate, and this dividing plate is positioned at the below of air inlet pipe, the top of escape pipe; Connected one group of filter core that can carry out gas-water separation on the dividing plate to air-flow.

Filter core number on the dividing plate depends on the air supply that per minute is handled.Each filter core include one have the filter screen of the filter opening of micron order size, an end face of filter screen is fitted on the dividing plate, another end face and a cover plate are fitted, run through one between cover plate and the dividing plate and can make element kit form one and be connected nut bolt on the dividing plate, but and on the dividing plate that is positioned at the filter core space, had one group of air feed and flow to through hole into filter core.To and contrast accompanying drawing by embodiment below is further described below the structure of the utility model moisture trap.Have in the accompanying drawing:

Fig. 1 is the positive view of the moisture trap of the utility model freezing dryer for compressed air;

Fig. 2 is the A-A cutaway view among Fig. 1;

Fig. 3 is that the utility model separator is installed and used schematic diagram on freezing dryer for compressed air;

Fig. 4 is the structural representation of the moisture trap of existing freezing dryer for compressed air.

Can see that the utility model moisture trap comprises a removable pressure vessel 1 on Fig. 1 and Fig. 2, have air inlet pipe 2, escape pipe 3 and discharge outlet 4 on the chamber wall, container inner wall has dividing plate 5, has connected filter core 6 on the dividing plate.

Filter core has four, wherein to include a filtering accuracy (that is filter opening size) be the filter screen 10 of 5 μ to each filter core, filter screen can be cylindrical, its upper end is fitted on the dividing plate 5, and have four through holes 11 on the dividing plate that each filter screen sealed, the lower end of the filter screen cover plate 7 of having fitted has run through a bolt 8 between dividing plate and the cover plate, and screw with nut 9, so that dividing plate, filter screen and cover plate have formed a filter core integral body.

Compressed air to be dried enters the utility model moisture trap from air inlet pipe 2, enter the space of filter core 6 by the through hole on the dividing plate 11 by the epicoele of dividing plate 5, filter opening on the air communication screen pack 10 enters the cavity of resorption of dividing plate then, and the escape pipe 3 from the cavity of resorption wall is confessed at last; Meanwhile, the mist pearl of being stopped by filter opening assembles on cover plate 7, gives off outside the device from discharge outlet 4 by filter screen at last.

The install and use situation of the utility model on freezing dryer for compressed air can be seen from Fig. 3.Freezing dryer for compressed air has comprised and has given cooler I, refrigerating evaporator II, moisture trap III, automatic water trap IV and refrigeration system (becoming with the double dot dash line frame) V.Enter from mouth of pipe C from the damp and hot compressed air of air compressor machine (not giving expression among the figure) and to give the cooler I, the compressed air that gives after cold enters the refrigerating evaporator II from mouth of pipe D, so that the steam condensation in it, after this promptly enter the utility model moisture trap III from air inlet pipe 2, dry gas after the separation changes over to from escape pipe 3 and gives the cooler I, carries out promptly confessing dry compressed air from mouth of pipe E to the user after the heat exchange with damp-heat air from air compressor machine; The condensed water of being separated by moisture trap then discharges by the automatic water trap IV from discharge outlet 4.The refrigeration system V is to be used for providing low-temperature receiver to the refrigerating evaporator II.

The utility model has the advantages that: 1) freezing dryer for compressed air is after having used the utility model moisture trap, and the dew point of compressed air drying degree can drop to-23 ℃ from having about-17 ℃ now, has satisfied the requirement of pneumatic equipment to aridity; Pressure Drop when 2) air-flow is by the utility model moisture trap is littler; 3) the utility model moisture trap unit volume can contain bigger filter area, so its small volume.

Claims

1, a kind of moisture trap that includes the freezing dryer for compressed air of the escape pipe (3) that has the air inlet pipe (2) that is connected with the outlet of the refrigerating evaporator in the freezing dryer for compressed air on a removable pressure vessel (1) of pressing in bearing and the chamber wall, be connected with the air inlet that gives cooler in the freezing dryer for compressed air, discharge outlet (4) is characterized in that:

1) connected a dividing plate (5) on the container inner wall, this dividing plate is positioned at the below of air inlet pipe (2), the top of escape pipe (3);

2) connected the filter core (6) that a group can be carried out gas-water separation to air-flow on the dividing plate, and each filter core can contain the filter screen (10) that its surface has the micron order filter opening, an end face of filter screen is fitted on the dividing plate, an other end and a cover plate (7) are fitted, run through a bolt (8) that element kit is formed a whole and be connected the band nut (9) on the dividing plate between cover plate and the dividing plate, but and on the dividing plate that is positioned at the filter core space, have one group of air feed flow to into through hole (11).