JP6126393B2 - Exhaust mist capture device for air dryer equipment - Google Patents

Description

  The present invention is for an air dryer apparatus that separates and stores moisture, oil, dust, and the like from purge air during purge processing of the air dryer apparatus for removing moisture from service air used in service brakes, air suspensions, etc. in automobiles and the like. The present invention relates to a discharge mist capturing device.

For example, in large vehicles such as trucks and buses, air compressed to a predetermined pressure (for example, about 10 kgf / cm ² ) by an air compressor is stored in an air tank, and this compressed air (service air) is used as an operating power source. Service brake systems that are used as a part of the system and air suspension systems that use compressed air instead of coil springs and leaf springs are used.

Here, the air compressed by the air compressor is in a state where water is likely to be generated due to condensation of water vapor contained compared to the normal atmospheric pressure state.
In addition, there may be a case where lubricating oil for lubricating an air compressor including a crank mechanism and a piston that are rotationally driven by an engine is mixed in the compressed air.

  For this reason, if the air compressed by the air compressor is stored in the air tank as it is and the compressed air is supplied to various air systems such as a service brake system, corrosion or fouling occurs at the part where the compressed air comes into contact. As a result, there is a risk of adversely affecting the reliability of the system, for example, causing a malfunction in various air systems.

  For this reason, before the air compressed by the air compressor is stored in the air tank, it is dried by an air dryer device to remove oil and purify it.

As an example of such an air dryer device, there is a device as described in Patent Document 1, for example, as shown in FIG. 5, when the air compressor 20 is in a load state where air is compressed (at the time of loading). Takes the compressed air into the air dryer device 10 from the inlet port 11, guides and passes the introduced compressed air to the filter 13 of the filter chamber 12, collects oil, dust, etc., and then guides it to the drying chamber 14. It is like that.
In the drying chamber 14, the moisture contained in the compressed air is absorbed and removed by the desiccant 15 accommodated in the drying chamber 14, and then the compressed air passes through the purge chamber 16 and the outlet 17 to the air tank 30. Has been led to.

On the other hand, when the pressure in the air tank 30 reaches a predetermined pressure (for example, about 10 kgf / cm ² ), the pressure regulator 40 operates and the air compressor 20 is brought into a no-load state (unload state) in which air is not compressed. However, in this state, the purge valve 18 is opened, and so-called purge processing is performed in which the compressed air in the purge chamber 16 is discharged to the outside while passing through the drying chamber 14 and the filter chamber 12.

  In addition, by this purging process, the moisture in the drying chamber 14 (the moisture adsorbed by the desiccant or the moisture accumulated in the bottom, etc.), the oil or dust in the filter chamber 12 (the oil collected in the filter 13, Dust and the like, and oil and dust collected at the bottom are discharged to the outside, and the desiccant 15 and the filter 13 are regenerated.

Japanese Utility Model Publication No. 5-26136 No. 7-8020 Japanese Utility Model Publication No. 6-76798 Japanese Utility Model Publication No. 7-10514

  By the way, the purge process may be repeated every few minutes depending on the amount of air consumption. If the vehicle is traveling, the position of the collision when the purge air is ejected changes with time, so it does not matter much. However, for example, in a state where the customer stops at the same position for delivery, the purge process may be continuously performed multiple times at the same position. There is a risk that the surrounding walls and the ground may be soiled by the water, oil, etc. ejected.

  In particular, in places where food-related or other clean environments are required, it is desirable to avoid the discharge of moisture, oil, etc. that are ejected with such purge air.

  For this reason, in the air dryer device described in Patent Document 2 and Patent Document 3, purge air containing moisture and oil is guided to the drain tank, and the oil and moisture can be temporarily stored in the drain tank. As described above, the drain provided in the drain tank is released at an appropriate time and place, so that oil, moisture, and the like are not inadvertently discharged into the drain tank.

  Similarly, in the air dryer device described in Patent Document 4, purge air containing moisture and oil is guided to a casing (container), and the inside of the casing is partitioned by a partition plate provided with a plurality of small holes and a synthetic resin. By providing a fiber layer, a configuration is adopted in which only water that has been purified by collecting oil while purging sound is discharged to the outside together with purge air.

  However, a predetermined amount of purge air (for example, 4 L / second) needs to flow through the desiccant and the filter per unit time in order to regenerate the desiccant and the filter satisfactorily in the purge process. It is necessary to reduce the ventilation resistance of the drain tank. For this reason, in the air dryer apparatus described in Patent Document 2 or Patent Document 3 designed to have a relatively small ventilation resistance, the purge process is performed. Since the pressure of the purge air flowing into the drain tank is maintained at a relatively high level and is discharged to the outside with this high pressure, even if water and oil in the purge air can be temporarily stored in the drain tank. There is a risk that the purge air will be re-entrained and sprayed to the outside and discharged from the outlet. In addition, the configuration is complicated and the material cost is increased, which may increase the cost.

  Moreover, in the air dryer apparatus described in Patent Document 4, even if the oil component can be removed, moisture is inadvertently discharged every time the purge process is performed, and the ventilation resistance of the casing may be increased. There is a possibility that it is difficult to obtain a desired purge performance. In addition, the configuration is complicated and the material cost is increased, which may increase the cost.

  The present invention has been made in view of such a situation, and in spite of a simple and low-cost configuration, carelessly discharging moisture, oil, dust, etc. while maintaining desired purge performance with low airflow resistance. An object of the present invention is to provide an exhaust mist capturing device for an air dryer device that has no adverse effects on the environment.

For this reason, the present invention
An exhaust mist trapping device for an air dryer device that separates and stores at least moisture from purge air that is discharged during a purge process of an air dryer device in an air system that stores and uses compressed air in an air tank,
Has an upper opening for inserting the purge air discharge passage has an outer periphery with a predetermined gap between the purge air discharge passage for discharging the purge air from the air dryer apparatus from the extended lower end thereof downward, the lower end of the purge air discharge passage A catch container that can be inserted and accommodated to a predetermined depth;
Holding means for supporting the catch container and capable of holding the outer periphery of the purge air passage at a position where the lower end of the purge air discharge passage is inserted to a predetermined depth;
With
At the bottom of the catch container is provided with an adsorbent that adsorbs the discharged mist ,
The catch container can be attached to the purge air discharge passage by holding the outer periphery of the purge air discharge passage by the holding means, while the catch container can be removed by releasing the outer periphery of the purge air discharge passage by the holding means. It can be removed from the purge air discharge passage .

In the present invention, a convex shape for supporting the clamping means from below is provided on the outer periphery of the purge air discharge passage so that the clamping means does not drop downward from a position where the lower end of the purge air discharge passage is inserted to a predetermined depth. Can be characterized.

  In the present invention, the adsorbent material is composed of adsorbed fibers (for example, trade names “Yukabuki-chan”, “Yukukyu-chan”, etc.) wrapped in a non-woven fabric so as not to be decomposed by the pressure of exhaust air. Can be characterized.

In the present invention, one end of the drop-off prevention wire is attached to a part of the discharge mist capturing device for the air dryer device, and a hook is attached to the other end so that the hook can be engaged with a part on the vehicle side. It can be characterized by being constituted as follows.

  According to the present invention, while having a simple and low-cost configuration, the ventilation resistance is small and the desired purge performance is maintained, and there is no adverse effect on the environment without inadvertently discharging moisture, oil or dust. It is possible to provide a small number of air dryer device discharge mist capturing devices.

1 is an overall configuration diagram schematically showing an overall configuration of an air dryer system including an exhaust mist capturing device for an air dryer device according to an embodiment of the present invention. It is the perspective view which expanded and showed the discharge mist capture | acquisition apparatus for air dryer apparatuses which concern on embodiment same as the above. In order to fix the exhaust mist capturing device for an air dryer device according to the above embodiment to the air dryer hose 19A, a structure is shown in which the clip handle 120 is fixed by a drop-off preventing hook band 19B. It is a perspective view which shows the example of 1 structure of the mist adsorption mat utilized for the air dryer apparatus discharge | emission mist capture | acquisition apparatus which concerns on embodiment same as the above. It is a whole block diagram for demonstrating the structural example of the conventional air dryer system.

  Hereinafter, an embodiment of an air dryer apparatus discharge mist capturing apparatus according to the present invention will be described with reference to the accompanying drawings. In addition, this invention is not limited by embodiment described below.

As shown in FIG. 1, the exhaust mist capturing device 100 for an air dryer apparatus according to the present embodiment includes purge air (including moisture, oil, dust, etc.) discharged from the drain 19 of the air dryer apparatus 10 during the purge process. , A pressure of about 10 kgf / cm ² , and a unit time flow rate of about 4 L / second) is introduced through a purge air discharge hose 19 A fitted and held in the drain 19. In addition, the description which abbreviate | omits the same element as the element already demonstrated is attached | subjected, and the description is abbreviate | omitted.

  The purge air discharge hose 19A can be, for example, a resin-made flexible hose, but is not limited thereto, and can be a resin-made or metal pipe.

  The purge air discharge hose 19A according to the present embodiment corresponds to an example of the purge air discharge passage according to the present invention. When the purge air discharge hose 19A is omitted, the drain 19 corresponds to an example of the purge air discharge passage according to the present invention.

  As shown in FIGS. 1 and 2, the discharge mist capturing device 100 for an air dryer apparatus according to the present embodiment is provided with a catch container 110 having an opening 110A having a large opening at the upper edge. The purge air discharge hose 19A is inserted into the catch container 110 to a predetermined depth near the center of the opening. More specifically, the catch container 110 is attached to the purge air discharge hose 19A so that the discharge mist from the outlet of the purge air discharge hose 19A can be received by simple attachment means such as a clip 120, for example. ing.

  The clip 120 is, for example, a spring clip-like clamping means, and includes, for example, as shown in FIG. 3, handle parts 120B and 120C using two spring steels that face each other with the fulcrum 120A as a fulcrum. The configuration may be such that the handle portions 120B and 120C are elastically biased in a direction in which the handle portions 120B and 120C are relatively approached with 120A as a fulcrum. However, it is not limited to such a configuration, and any other configuration can be used as long as it can be detachably attached to the purge air discharge hose 19A.

Further, in order to prevent the clip 120 from dropping from the purge air discharge hose 19A due to the momentum of the air pressure of 10 kgf / cm ² discharged from the purge air discharge hose 19A, the band 19B is wound around the hose 19A. The protrusion 120 (for example, the binding portion of the band 19B) is hooked on the lower side of the hose clamping portion 120D of the clip 120 so as to prevent falling off and coming off. As shown in FIG. 3, the band 19B can be, for example, a binding band such as “Tie Wrap (registered trademark of Thomas and Betz)”, “Insulok (registered trademark of Heraman Tighton)”, and the like. Can be used.

  More specifically, as shown in the lower diagram (left photo) in FIG. 3, the convex shape of the band 19B wound around the hose 19A (for example, the binding portion of the band 19B) and the clip 120 The gap near the fulcrum 120A is substantially aligned with the insertion direction, and in that state, the clip 120 is lifted upward from the lower side of the purge air discharge hose 19A while inserting the hose clamping portion 120D of the clip 120 from the band 19B. Pass upward.

  Thereafter, as shown in the lower right photograph in FIG. 3, the handle 120B, 120C of the clip 120 is rotated around the major axis of the purge air discharge hose 19A, so that the gap and the convex of the band 19B are By shifting the position seen from the insertion direction of the shape (for example, the binding portion of the band 19B), the hose clamping portion 120D of the clip 120 is hooked on the band 19B, and the discharge mist capturing device 100 for the air dryer device is dropped. It can be easily attached to and detached from the vehicle via the purge air discharge hose 19A and the like while preventing the detachment.

The opening 110A according to the present embodiment corresponds to the upper opening according to the present invention.
In addition, the clip 120 according to the present embodiment corresponds to an example of an attachment unit according to the present invention.

  As shown in FIG. 1, the clip 120 is configured to be connected and attached to the catch container 110 by, for example, a resin or metal guide hook 121.

  However, the present invention is not limited to this, and the guide hook 121 can be a connecting element with the clip 120 in addition to a ring-shaped element, a chain, and the like.

  That is, after the tip of the purge air discharge hose 19A is inserted into the catch container 110 through the opening 110A, the hose clamping portion 120D of the clip 120 is clamped on the outer periphery of the purge air discharge hose 19A, and the present embodiment is concerned. The catch container 110 of the exhaust mist capturing device 100 for the air dryer device is detachably attached so as to be suspended from the purge air discharge hose 19A.

  Also, as shown in FIGS. 1 and 2, oil or the like (oil, moisture, etc.) contained in the purge air discharged from the tip of the purge air discharge hose 19A is disposed inside the catch container 110 according to the present embodiment. A mist adsorption mat 130 for adsorbing dust or the like) is provided.

  The mist adsorption mat 130 may be an adsorption sheet made of fibers (see FIGS. 2 and 3) in the current technology. If these mats or sheets can be discarded as flammable materials, the captured matter can be easily processed. More convenient.

  Such a mist adsorbing mat 130 (for example, trade names “Oil Absorbing Chan”, “Yukukyu-chan”, etc.) corresponds to an example of the adsorbing material according to the present invention.

  The purge air collides with the upper surface of the mist adsorbing mat 130, so that the mist adsorbing mat 130 is secured by a nonwoven fabric and provided at the bottom of the catch container 110 so that the mist adsorbing mat 130 is not scattered or unraveled. It has been.

  In the present embodiment, for example, the catch container 110 may be a resin container such as a PET container having an inner diameter of about 120 mm and a depth of about 160 mm, or a metal container.

  In the present embodiment, the clip 120 (for example, the hose clamping portion 120D) is engaged with the band 19B (or the outer convex portion provided on the hose 19), so that the catch container 110 is vertically moved with respect to the purge air discharge hose 19A. When the purge air is ejected, a force that presses the catch container 110 downward acts, and the clip 120 causes the outer periphery of the purge air discharge hose 19A to face downward. It is possible to avoid the phenomenon of slipping and falling off the purge air discharge hose 19A, and to favorably hold the clip 120 at a predetermined position on the outer periphery of the purge air discharge hose 19A.

  The air dryer apparatus discharge mist capturing apparatus 100 according to the present embodiment having such a configuration is always attached to the purge air discharge hose 19A, and once the mist adsorbing mat 130 adsorbs the discharged matter, it is temporarily removed, After discarding the mist adsorption mat 130, it is possible to replace it with a new mist adsorption mat 130 and return it to the original position, or put it in and out through the opening 110A of the catch container 110.

  Another method of use is to remove it during normal use of the vehicle, for example, when entering a place where food-related or other clean environments are required, before the driver captures the exhaust mist for the air dryer device. A method of use is also conceivable in which the device 100 is attached and removed after leaving.

  With these usage methods, for example, when customers are parked at the same position for delivery, the surrounding walls and ground are soiled by moisture and oil that are spouted with the purge air. Although it is easy and low cost, it is effective to prevent moisture and oil that are ejected with the purge air from being discharged to the outside and contaminating the surroundings. Can be avoided.

  In other words, according to the present embodiment, while having a simple and low-cost configuration, the ventilation resistance is small, the desired purge performance is maintained, and there is no need to inadvertently discharge moisture, oil, dust, etc. It is possible to provide an exhaust mist capturing device for an air dryer device that has less adverse effects on the air dryer.

  In the present embodiment, the catch container 110 can have a cylindrical cross-sectional shape, but is not limited thereto, and may have a polygonal cross-sectional shape, an elliptical cross-sectional shape, or the like.

  In addition, the catch container 110 according to the present embodiment can be used as a bag-shaped container with the opening 110A opened in a substantially circular shape. In the case of a bag shape, the lower side and the side side can be straight seals or folded portions.

  In addition, a seal that can be opened and closed is provided near the upper edge of the opening 110A, an upper lid 110B with a sealing seal is provided on the catch container 110, and after removing the purge air discharge hose 19A, the opening 110A is sealed, The adsorbed discharge is prevented from leaking to the outside, can be stored in a clean state, and can be discarded after moving to a predetermined disposal location.

  It should be noted that the mist adsorption mat 130 collides with the purge air ejected vigorously from the tip of the purge air discharge hose 19A, so that the cotton-like mat is unraveled or biased, and the ability to adsorb oil or the like decreases. There is a risk that

  For this reason, for example, the mist adsorption mat 130 can be configured to be wrapped with a nonwoven fabric. At this time, as shown in FIG. 4, it can be set as the structure which aggregates several oil absorption fibers (mist adsorption mat 130), and wraps with a nonwoven fabric collectively.

  Thereby, even if purge air ejected vigorously from the tip of the purge air discharge hose 19A collides, it is possible to reliably prevent the cotton-like mat of the mist adsorption mat 130 from being unraveled or biased. The adsorption ability of mist can be kept high over a long period of time.

  As described above, the discharge mist capturing device (in-field catcher) 100 for an air dryer apparatus according to the present embodiment inserts the purge air discharge hose 19A to a predetermined depth into the catch container 110 opened at the top, and in that state the catch container 110 is attached to the purge air discharge hose 19A, so that when the purge air is ejected from the tip of the purge air discharge hose 19A, the oil or the like contained in the purge air is provided on the bottom of the catch container 110. On the other hand, the purge air is discharged through the relatively wide upper opening 110A of the catch container 110, so that the ventilation resistance is low and the desired purge performance can be maintained, and inadvertently Does not discharge moisture, oil or dust, and has little adverse impact on the environment It is possible to provide a discharge mist trapping device for air dryer apparatus.

  By the way, the catch container 110 which concerns on this Embodiment mentioned above, for example, in order to be able to confirm easily the amount of adsorption | suction of the collected water | moisture content, oil content, dust, etc. from the outside, for example, all or part thereof Although it can be manufactured with a transparent material or the like, it is not limited to this.

  In this embodiment, the clip 120, which is an example of the attaching means, is attached to the purge air discharge hose 19A. However, the present invention is not limited to this. It is also possible to attach simply (easy to attach / detach).

  Further, in the present embodiment, as shown in FIG. 2, one end of the drop-off prevention wire is attached to a part of the discharge mist capturing device 100 for the air dryer device (for example, the guide hook 121) and the other end is hooked (for example, a carabiner). Etc.), and the hook can be engaged with a part of the vehicle side, which may cause the exhaust mist capturing device 100 for the air dryer device to fall off the vehicle unexpectedly. Can be prevented.

  The embodiment described above is merely an example for explaining the present invention, and various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Air dryer apparatus 12 Filter chamber 13 Filter 14 Drying chamber 15 Desiccant 16 Purge chamber 19 Drain (an example of purge air discharge passage)
19A Purge air discharge hose (example of purge air discharge passage)
20 air compressor 30 air tank 100 discharge mist capturing device for air dryer device 110 catch container 110A opening (upper opening)
110B Upper lid 120 clip (an example of attachment means according to the present invention)
130 Discharge mist adsorption mat (an example of an adsorbent according to the present invention)

Claims (4)

An exhaust mist trapping device for an air dryer device that separates and stores at least moisture from purge air that is discharged during a purge process of an air dryer device in an air system that stores and uses compressed air in an air tank,
Has an upper opening for inserting the purge air discharge passage has an outer periphery with a predetermined gap between the purge air discharge passage for discharging the purge air from the air dryer apparatus from the extended lower end thereof downward, the lower end of the purge air discharge passage A catch container that can be inserted and accommodated to a predetermined depth;
Holding means for supporting the catch container and capable of holding the outer periphery of the purge air passage at a position where the lower end of the purge air discharge passage is inserted to a predetermined depth;
With
At the bottom of the catch container is provided with an adsorbent that adsorbs the discharged mist ,
The catch container can be attached to the purge air discharge passage by holding the outer periphery of the purge air discharge passage by the holding means, while the catch container can be removed by releasing the holding of the outer periphery of the purge air discharge passage by the holding means. An exhaust mist capturing device for an air dryer device, wherein the device is removable from the purge air discharge passage . A convex shape that supports the clamping means from below is provided on the outer periphery of the purge air discharge passage so that the clamping means does not drop downward from a position where the lower end of the purge air discharge passage is inserted to a predetermined depth. The exhaust mist capturing device for an air dryer device according to claim 1. The air dryer apparatus discharge mist supplement apparatus according to claim 1 or 2 , wherein the adsorbent material is constituted by an adsorption fiber wrapped with a non-woven fabric so as not to be decomposed by the pressure of the discharge air. One end of the drop-off prevention wire is attached to a part of the exhaust mist capturing device for the air dryer device, and a hook is attached to the other end so that the hook can be engaged with a part on the vehicle side. Air dryer apparatus discharging a mist supplementary device as claimed in any one of claims 1 to 3, characterized in Rukoto.