MXPA99002166A - Gas-liquid separator - Google Patents

Abstract

A gas-liquid separator comprising a cylindrical container (1) having a hollow chamber in the interior thereof, a high-pressure air introduction port (1a) at a lower portion thereof and an air discharge port (1b) at an upper portion thereof, the cylindrical container (1) being provided in the interior thereof with a blowoff guide plate (5) against which the air supplied from the high-pressure air introduction port (1a) impinges to change the direction of a flow of the air, a conical reception plate (6) disposed in an upper portion of the hollow chamber, having a vent hole in a central portion thereof and partitioning the hollow chamber into upper and lower parts, which upper part defined by the conical reception plate (6) communicates with the air discharge port (1b), and a partition wall (8) disposed on the upper side of the conical reception plate (6) so as to be opposed thereto, dividing the upper part of the hollow chamber into two and having a vent hole therein, wherein a surface against which the air impinges of the blowoff guide plate (5) is inclined curvilinearly in parallel with an inner wall surface of the cylindrical container (1) or in such a manner that a flow passage expands in a downstream direction. This arrangement enables the liquefaction based on surface impingement, i.e. gas-liquid separation to be carried out efficiently, and an energy loss due to the variation of the direction of currents of the resultant gas and liquid to be lowered.

Description

GAS-LIQUID SEPARATOR Technical Field The present invention relates to a gas-liquid separator for removing a liquid, such as moisture, contained in a gas, including high-pressure air.

Prior Art As one of the gas-liquid separators, there is a conventionally known air dehumidifier which uses a refining fluid, such as chlorofluorocarbons. - In the dehumidifier, high pressure air is cooled by means of a cooling fluid to condense water vapor , in the air to remove the steam. Such an air dehumidifier has environmental problems, due to the use of a refrigerant fluid, for example, chlorofluorocarbons, and also requires additional devices, such as a compressor or a condenser to compress the refrigerant fluid and a heat exchanger to cool the air to High pressure, Another problem is that the operating costs are relatively high, because it is necessary a source of energy to operate those devices. In another known dehumidifier, the moisture in the high pressure air is removed by passing the high pressure air through a filter provided in a dehumidifying body. This dehumidifier has the problem that if the filter becomes wet during use, the moisture that has been deposited on the filter with the high pressure air passing through the filter, is extruded towards the rear surface of the filter, causing the Dehumidified high pressure air is moistened again. If the filter is saturated with moisture, such a problem is more serious, and the dehumidifying effect is reduced, so that the filter has to be cleaned and replaced periodically. To solve the aforementioned problems, the inventor proposes a compressed air dehumidifier in Japanese Patent Laid-Open Publication No. Hei 8-290028. The proposed dehumidifier comprises a passage for introducing and a passage for discharging air provided respectively in the lower and upper parts of a side surface of a cylindrical body, having a hollow chamber therein, a collision surface deposited in a position in the front of the introduction passage for air collision, and a guiding part to change a flow of air that has collided with the collision surface. In addition, a conical receiving plate with an opening formed in the center thereof arranged in the hollow chamber and a barrier plate having air holes formed thereon on the receiving plate is provided.

According to the proposed dehumidifier, the compressed air introduced into the hollow chamber through the introduction passage collides violently with the collision surface, whereby the moisture contained in the compressed air turns into drops of water. Also, the air s changed in a direction substantially at right angles to that of the air that is released into the hollow chamber to flow towards an inner surface of the hollow chamber. The released air is separated into moisture that has a large specific gravity, and air that has a small specific gravity, due to the centrifugal force under rotation. The separated moisture drips and is received by a drain, and only the disinfected air is discharged through the discharge passage. In this way, the proposed dehumidifier can efficiently remove moisture in the air without using conventionally used devices, for example, a compressor or the like to produce energy, and an air filter, which needs to be replaced. It is an object of the present invention to provide a gas-liquid separator, which can achieve a greater separation effect, by improving the dehumidifier discussed above, proposed in Japanese Unexamined Patent Publication No. Hei 8-290028.

Description of the Invention The basic principle of the dehumidifier proposed in Japanese Unexamined Patent Publication No. Hei 8-290028, is to violently collide a gas containing moisture with the collision surface to convert moisture into water droplets, and centrifuge the gas at high speed for the centrifugal separation of gas and liquid. To improve the operation effect of the proposed dehumidifier, therefore, it is important to centrifuge the gas introduced at a higher velocity into the cylindrical body and minimize the loss of energy during the collision of the gas introduced with the collision surface, and to prolong the time in which the introduced gas remains in the cylindrical body, to a degree in which the positive centrifugal separation in the cylindrical body is ensured. More specifically, the present invention provides a gas-liquid separator, wherein a gas inlet gate is provided on the side surface of a cylindrical vessel having a hollow chamber formed therein, a discharge gate is provided for discharging the gas after gas-liquid separation in the upper part of the cylindrical vessel, a collision surface is provided, with which the gas supplied from the gas inlet gate collides and a guiding part to change the direction of the gas gas flow after the shock to flow along a surface of the inner wall of the cylindrical vessel in a circumferential direction in the cylindrical vessel, to a position to face the gas inlet gate, a receiving plate is provided having a substantially conical shape with an opening formed in the center thereof, in an upper portion of the hollow chamber with a central portion projecting downwards to divide the hollow chamber into upper and lower hollow chambers, the upper hollow chamber, separated by the receiving plate, is communicated with the discharge gate, and a separation having at least one orifice Ventilation that divides the upper hollow chamber, is placed on top of the receiving plate in opposite relation, the collision surface is curved to follow a surface of the internal wall of the cylindrical container or inclined to extend a flow passage to the downstream side. The mechanism that describes how, after the high-pressure air that contains a liquid collides with a collision surface, the liquid dispersed in the gas, condenses in the form of droplets, has not yet been completely cleared. However, it is inferred with or follows. When a gas containing a liquid similar to a fog collides with a collision surface, the gas rapidly changes direction and is then released from an outlet, while the liquid can not change direction rapidly and flows at a slower speed that the gas, so that the liquid stagnates in the vicinity of the collision surface for a moment. Liquid particles similar to a successive fog, are united with a liquid particle similar to a stagnant fog, and as a result of the repetition of the previous process, the particles similar to a fog finally become a drop. Consequently, it is required to make the gas containing a liquid collide with a collision surface with the appropriate energy. In the dehumidifier proposed in Japanese Unexamined Patent Publication No. Hei 8-290028, however, since the introduced gas collides with the collision surface almost perpendicularly, the energy loss caused when the flow direction of the gas changes after of the collision is large, and in this way the centrifugal force for the gas can not be sufficient. Consequently, gas-liquid separation by centrifugal force using a specific gravity difference is limited. In the present invention, the above problem was solved by forming a collision surface having a curved shape on a surface of the inner wall of the cylindrical container, or tilting to extend a flow passage to the downstream side. Here, the term "curved shape following a surface of the inner wall of the cylindrical containers" means a shape such as to allow gas, which is released from the guide part into the vicinity of the surface of the inner wall of the cylindrical container, flow without hitting the wall of the cylindrical container and rotate along the surface of the inner wall of the same. In the case of the inclination of the collision surface, the inclination must satisfy the requirements to allow the separation of the gas and the liquid after the collision and reduce the loss of energy that is caused when the gas flow direction changes after the collision For this purpose, the collision surface is inclined 1-5 °, more preferably 1-3 °, with respect to the plane perpendicular in relation to the incoming direction of the gas. If the angle of inclination is too small, the energy loss would be small, but the efficiency of liquefaction, that is, the separation in gas and liquid, is reduced. Therefore, it is desirable that the angle of inclination be set to fall in the above range. The operation of the gas-liquid separator constructed in this way will now be described in relation to an example of removal of moisture from the air. When high-pressure air containing moisture is introduced from the gas inlet gate under several to several tens of atmospheres, the air blows to the vessel at a high velocity through the gas inlet gate and then collides with the collision surface provided in the position in front of the gas inlet gate. After that, the air changes direction of flow to flow towards the surface of the inner wall of the container while being guided by the guide part, and is blown towards the cylindrical vessel from the downstream end of the guide part. As mentioned above, when moisture-containing air collides violently against the collision surface, a particle of water similar to a mist, successively, joins with a particle of water similar to a preceding mist to form water droplets. Further, since the high pressure air flow changes in the direction to follow the surface of the inner wall of the container immediately after being blown from the gas inlet gate, the water droplets are separated from the air under a centrifugal force due to to a difference in specific gravity. In this way moisture is separated. The air and moisture that is blown into the cylindrical vessel from the downstream end of the guide part rises towards the discharge gate, while rotating in the form of a spiral flow at a circumferential velocity, according to the curvature of the surface internal circumferential of the cylindrical container. After rising while rotating in the form of a spiral flow, air and moisture are blocked by a conical receiving plate provided in the upper portion of the hollow chamber, after which they descend at the same time, along a lower surface of the conical receiving plate. The moisture becomes water droplets and then falls downward, towards a drain provided in the lower surface of the cylindrical vessel, by gravity. On the other hand, the air from which the moisture has been separated, gradually rises towards the central opening of the conical receiving plate while being sucked from the top, and is supplied through the hollow chamber and the discharge gate towards a 'air or similar tool, connected to the discharge gate. In the present invention, the separation having at least one ventilation hole and dividing the upper hollow chamber is placed between the receiving plate in opposite relation to that of the air flowing through the central opening of the conical receiving plate, without flowing directly to the discharge gate. With this arrangement, the air is allowed to remain in the cylindrical vessel for a longer time to ensure gas-liquid separation under the centrifugal force, before proceeding to the discharge gate.

Thus, in the gas-liquid separator of the present invention, the moisture having a relatively large specific gravity is separated from the air in the cylindrical vessel due to the centrifugal force. The separated moisture is converted into droplets after coming into contact with the surface of the internal wall of the cylindrical container or, in part, the lower surface of the conical receiving plate. Next, the drops of water run down, and are collected and recovered by the drain provided on the bottom surface of the cylindrical vessel. In addition to the above construction, it is preferred that in the gas-liquid separator of the present invention, a curved member having at least one vent hole and a hemispherical internal surface is placed between the conical receiving plate and the gap above the opening. center of the conical receiving plate to form a small chamber divided between the curved member and an upper surface of the receiving plate. By providing the curved member having the hemispherical inner surface to form the small chamber, the liquid component that has not been recovered by the conical receiving plate is captured and converted into drops on the inner surface of the curved member. These drops fall downwards towards the lower surface of the cylindrical vessel through the central opening of the conical receiving plate, and are then recovered by the drain. The reason why the curved member is formed so that it has a curved inner surface is to allow drops that come in contact with the inner surface of the curved member to fall down more easily. If the gas that is blown out of the gas-liquid separator is too much, the gas after the gas-liquid separation would be accompanied by liquid in the cylindrical vessel, due to a strong gas pressure. Therefore, it is required to determine the amount of gas blown out to avoid such a disadvantage. If only one ventilation hole is formed in the curved member, the amount of gas blown outward can be more easily controlled. If the ventilation hole formed in the curved member and the ventilation hole formed in the separation are too close to each other, the gas blown out through the ventilation hole of the curved member, would travel directly through the ventilation hole of the separation, and the gas is sometimes accompanied by liquid as mentioned above. By arranging the ventilation hole of the curved member and the ventilation hole of the separation in opposite positions 180 ° around the center of the curved member, the ventilation holes of each member can be maximally separated from each other, causing the discharged gas to through the vent hole of the curved member remains temporarily in a space defined by the external surface of the curved member, the lower surface of the gap and the inner surface of the cylindrical container. As a result, it can be effectively prevented that the liquid flows out together with the gas after the gas-liquid separation. The curved member and the separation can be formed integrally or separately. In order to maintain the aforementioned positional relationship between the respective ventilation holes in the curved member and the spacing, however, it is preferred that the curved member and spacing be formed integrally. The distance between the gas inlet gate and the collision surface is set so that it is in the range of 3 - 15 mm, more preferably 5 - 6 mm. If the distance is too short, the loss of pressure would be greater. On the contrary, if it is very large, the separation effect resulting from the collision would not be sufficient. In this way, the distance should preferably be fixed so that it falls in the previous interval. furtherFor the purpose of violently colliding the gas with the collision surface and then changing the flow direction of the gas impacted for the centrifugal separation, the gas inlet gate is preferably provided with a throat portion, which comprises a nozzle mechanism or similar, to increase the gas flow velocity. In order to minimize the loss of energy and ensure uniform flow, it is desirable that the collision surface and the guide portion provided in the cylindrical container be formed as an integral member having a continuous surface, and that a binding mechanism be provided. / separation to join and separate the integral member through the gas inlet gate. This feature makes it possible to avoid gas leakage through a connecting portion between the collision surface and the guide part, to maintain the air tightness of the cylindrical container, and to improve the gas-liquid separation effect. In addition, defining a flow passage space surrounded by the surface of the internal wall of the cylindrical container, the collision surface and the guide part, and the blowing out of the gas that was introduced from the inlet gate through an outlet (downstream end), of this flow passage space along the surface of the inner wall of the cylindrical vessel, the flow direction of the gas can be easily controlled, and the energy loss can also be limited to a lower level compared to the device that releases gas into an open space without any barrier.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front view of a gas-liquid separator of a first embodiment. Figure 2 is a partially vertical sectional view of the gas-liquid separator shown in Figure 1. Figure 3 is a sectional view taken along line AA of Figure 2. Figure 4 is a plan view of a blow guide plate in the gas-liquid separator shown in Figure 2. Figure 5 is a side view of the blow guide plate shown in Figure 4. Figure 6 is a view in cut taken along line B-B in Figure 4. Figure 7 is an operating graph depicting a moisture removal velocity of the gas-liquid separator shown in Figure 1. Figure 8 is a view explanatory of the gas-liquid separator shown in Figure 1, which illustrates how the introduced air is separated in a flow of air and water droplets.

Figure 9 is a front view of a gas-liquid separator of a second embodiment. A Figure 10 is a vertical sectional view of the gas-liquid separator shown in Figure 9. Figure 11 is an exploded perspective view of an upper portion of the gas-liquid separator shown in Figure 9. Figure 12A it is a front view of a member forming a collision surface and a guiding part; Figure 12B is a side view of the member; Figure 12C is a plan view of the member; and Figure 12D is a sectional view taken along line CC in Figure 12A. Figure 13 is an exploded perspective view of the member forming the collision surface and the guide portion, showing a mounted state of the members. Figure 14 is an explanatory view of the gas-liquid separator shown in Figure 9, which illustrates the air and moisture flows. Figure 15 is a sectional view taken along the line D-D in Figure 14.

BEST MODE FOR CARRYING OUT THE INVENTION The features of the invention will be described below in detail, in conjunction with the modalities shown in the drawings. Figure 1 is a front view of a gas-liquid separator of a first embodiment; Figure 2 is a partially vertical sectional view of the gas-liquid separator shown in Figure 1; Figure 3 is a sectional view taken along the line A-A in Figure 2; Figure 4 is a plan view of a blow guide plate in the gas-liquid separator shown in Figure 2; Figure 5 is a side view of the blow guide plate; Figure 6 is a sectional view taken along line B-B in Figure 4, * Figure 7 is an operating graph depicting the moisture removal rate of the gas-liquid separator shown in Figure 1; and Figure 8 is an explanatory view of the gas-liquid separator shown in Figure 1, which illustrates how the air introduced into a stream of air and water droplets is separated. Referring to Figures 1 to 5, the reference number 1 is a cylindrical vessel having an internal diameter of 70 mm, the is a high pressure air introduction gate having a diameter of 6 mm, Ib is a discharge gate of air having a diameter of 4 mm, it is a portion of cap or cover provided in the upper part of the cylindrical vessel, 2 is a self-draining connected to the bottom of the cylindrical vessel 1, 3 is a high-pressure air supply tube connected to the high pressure air introduction gate, and 4 is a high pressure air discharge pipe connected to the air discharge gate Ib. Numerical reference 5 is a blowing guide plate forming a blowing guide part, 5a is an air passage slot defined between the circumferential surface of the outer wall of the blowing guide plate 5 and a surface of the inner wall of the cylindrical vessel 1. The air passage slot 5a has a curved shape that follows a surface of the inner wall of the cylindrical vessel 1. The air is released from a downstream end of the air passage slot 5a towards the cylindrical vessel 1 near its inner wall surface, so that the released air rotates along the surface of the inner wall of the cylindrical container 1, without hitting the surface of the inner wall. The numerical reference 5b is a connection hole for the blowing guide plate 5, 5c is a connecting bolt, which is inserted into connection hole 5b, d is a conical receiving plate provided in the upper portion inside the cylindrical vessel 1 , and 6a is a central opening formed in the center of the conical receiving plate 6 and having a diameter of 12 mm. In addition, the reference numeral 7 is a dome like a curved member welded to an upper central surface of the conical receiving plate 6, 7a are two ventilation holes formed in the dome 7, each of which have a diameter of 3 mm, 8 is a gap, 8a are two ventilation holes formed in the gap 8, each of which has a diameter of 3 mm, 9 is a first small chamber, 10 is a second small chamber, and 11 is a third small chamber . Now the operation of the gas-liquid separator of this mode will be described. When the high-pressure air containing moisture is blown from the high-pressure air introduction gate, through the high-pressure air supply pipe 3, the air strikes a surface of the slot of the through-hole 5a of the blowing guide plate 5, thereby changing its direction by 90 °. The air then proceeds along the surface of the inner wall of the cylindrical container 1 in the circumferential direction following the air passage slot 5a. The distance between the high-pressure air inlet gate (the surface of the inner wall of the cylindrical container 1) and the surface of the groove of the air passage slot 5a, with which the blown air collides, is 5 mm The air in this way is gradually curved, and the humidity in the air is partially separated by the shock. After advancing through the air passage slot 5a, air is blown into the cylindrical container 1 from the downstream end of the air passage slot 5a, and then rises in the form of a spiral flow while rotating. In this way, since the air passage slot 5a defined between the outer circumferential surface of the blowing guide plate 5 and the surface of the inner wall of the cylindrical container 1 is curved, to follow the surface of the inner wall of the container cylindrical, the introduced air is efficiently separated in gas and a liquid by shock, and also the loss of energy caused after changing the direction of the air is reduced. After rising up against the conical receiving plate 6, the spiral flow descends along a lower surface of the conical receiving plate 6 towards the center thereof. Figure 8 illustrates the process described above in the cylindrical container 1. The water droplets, which are forced outward by the centrifugal force produced by the rotation of the spiral flow, are deposited on the surface of the internal wall of the cylindrical container 1, and then run down along the surface of the inner wall. Some drops of water are separated from the air before coming into contact with the surface of the internal wall due to a difference in specific gravity and fall down towards a lower surface of the cylindrical vessel 1.

When the spiral flow hits the conical receiving plate 6, water droplets are deposited on the lower surface of the conical receiving plate d, and then run down along the lower surface thereof. After that, the drops of water fall downwards by gravity from a peripheral edge of the central opening facing the lower surface of the cylindrical container 1. The moisture contained in the air flow striking the conical receiving plate 6 is transported downwards. together with the air, separated from the air to form drops of water due to a specific gravity difference, and fall down towards the lower surface of the cylindrical vessel 1. The falling drops of water are then recovered in the self-draining 2. On the other side, the air in a central portion of the cylindrical vessel 1 gradually rises as if it were sucked from the top, and flows into the first small chamber 9 through the central opening 6a. The air flowing into the first small chamber 9 through the central opening of the conical receiving plate 6, enters the second small chamber 10 through the ventilation holes 7a and then the third small chamber 11 through the ventilation holes 8a. The air is finally discharged to the air discharge tube 4 through the air discharge gate lb in the third small chamber 11, after passing into those small chambers. To measure the dehumidifying capacity of this mode, 100 cc of water was mixed with color ink in high pressure air flows with different flow rates of 100 to 500 liters per minute, at a rate of 30 cc / min, as shown in Figure 7. The resulting high pressure air was blown into the high pressure air of 10 atmospheres, through the high pressure air supply pipe 3. A graph of Figure 7 graphs the amount of water dyed with ink recovered through self-draining 2 under the above condition, in relation to the air flow velocity. As can be seen from the graph in Figure 7, almost 100% of water dyed with ink was recovered at flow rates of up to 300 liters / min. The percent moisture removal was slightly lower at a value close to 99%, at a flow rate of 500 liters / min. Since the water was colored with ink, it can apparently be observed how the water deposits and remains in the cylindrical vessel by removing the lid or cover portion. An observation of the inside of the cylindrical container resulted in a slightly colored portion, and no moisture residue was found. In addition, substantially similar results were obtained when the high pressure air had from 3 to 7 atmospheres. In other words, there was no change in operation depending on the value of the pressure. Now a second modality will be described, below. The components of a gas-liquid separator of this second embodiment, which correspond to those of the gas-liquid separator of the first embodiment, are denoted by the same reference numbers and are not explained here. Figure 9 is a front view of the gas-liquid separator of the second embodiment, * Figure 10 is a vertical sectional view of the gas-liquid separator shown in Figure 9; Figure 11 is an exploded perspective view of an upper portion of the gas-liquid separator shown in Figure 9; Figure 12A is a front view of a member forming a collision surface and a guide part, Figure 12B is a side view of the member, Figure 12C is a plan view of the member, and Figure 12D is a view in cut taken along line C-C in Figure 12A; Figure 13 is a perspective view of the member forming the collision surface and the guide part, showing a mounted state; Figure 14 is an explanatory view of the gas-liquid separator shown in Figure 9, which illustrates the air and moisture flows; Figure 15 is a sectional view taken along the line D-D of Figure 14.

This second embodiment differs from the first embodiment mainly in the structural members corresponding to the blowing guide plate 5, the conical receiving plate 6, the dome 7 and the separation 8. First, a receiving plate 31 corresponding to the plate will be described. conical receiver 6 in the first modality. In this second embodiment, the receiving plate 31 was formed so as to have a lower surface having an arc-shaped sectional view, ie, which constitutes part of a spherical surface. By providing such a curved lower surface more than the linear lower surface, as in the above embodiment, the water droplets in contact with the lower surface of the receiving plate 31, in particular, can fall down easily. Next, an intermediate member will be described 33, which corresponds to dome 7 and separation 8 in the first mode. In this second embodiment, a partition 35 having a circular shape in a plan view and a curved member 37 suspended from the partition 35, are formed integrally with each other. In addition, the partition 35 and the curved member 37 have ventilation holes 35a, 37a formed therein, respectively, to be located at opposite positions 180 ° around the center of the curved member 37. In this embodiment, since the spacing 35 and the member curved 37 were formed integrally with each other, the positional relationship between the vents 35a and 37a was maintained. With the arrangement described above, that is, the vent hole 35a formed in the partition 35 and the vent hole 37a formed in the curved member 37 arranged in opposite positions 180 ° around the center of the curved member 37, the vent hole 37a of the curved member 37 and the vent hole 35a of the partition 35 can be separated from one another to the maximum, causing the air discharged through the vent hole 37a of the curved member 37 to temporarily remain in a space defined by an external surface of the member curved 37, a lower surface of the partition 35 and the surface of the inner wall of the cylindrical container 1. As a result, the water droplets can effectively be prevented from flowing out together with the air after the gas-liquid separation. Next, a blow guide member 41 will be described, which corresponds to the blow guide plate 5 in the first embodiment. As clearly shown in Figures 12 and 13, the blowing guide member 41 comprises a linear collision surface 41a and a guide part 41b, which extends continuously from the collision surface 41a. A space defined by the surface of the internal wall of the cylindrical vessel 1, the collision surface described above 41a and the guide part 41b, serve as an air passage slot 41c. In this embodiment, the collision surface 41a is formed to extend linearly and inclined 3 ° in one direction to extend the airflow passage from a perpendicular plane to the air entry direction (see *? * In Figure 12D) . Such inclination of the collision surface contributes, not only to increase the efficiency of the liquefaction of the moisture by collision with the surface, that is, the separation of the gas and the liquid, but also to reduce the energy loss caused after the change of the flow direction of the incoming air. Returning to Figures 12 and 13, the numerical reference 41d is an internal thread formed in the blowing guide member 41, and 43 is an external thread that is capable of engaging the internal thread 41d. The external thread 43 has an external configuration such that it allows its insertion into the high-pressure air introduction gate. Also, the external thread 43 is provided with a flange portion 43b, formed at one end of the head thereof to serve as a bearing surface, and cut slots 43a, formed in the flange portion 43b in a radial direction to hold the screw. The blowing guide member 41 is placed in the cylindrical vessel 1, such that the internal thread 41d is positioned facing the high-pressure air introduction gate, and the external thread 43 is inserted through the gate of high-pressure air introduction, and engages and holds with the internal thread 41d of the blowing guide member 41, thereby fixing the blower member 41. Accordingly, in this embodiment, the blowing guide member 41 can be attached from the side of the high-pressure air introduction gate. This structure effectively prevents air from leaking through gaps around the connection bolts 5c inserted through the connection holes 5b, and consequently the air tightness of the cylindrical container 1 can be maintained. Thus, the gas-liquid separator of the second embodiment of the present invention can provide the advantages mentioned above, in addition to the different functions of the first embodiment described above. In the present invention the following advantages can be achieved. (1) The removal rate of a liquid component can be increased to almost 100%, even for air introduced at high pressure with a simple structure that does not include moving parts and that do not require power. (2) With the feature that the collision surface is curved to follow a surface of the inner wall of a cylindrical container or is inclined to extend a flow passage to the downstream side, the liquefaction of the moisture by collision with the surface, that is, the separation of gas and liquid, is effected efficiently, and the energy losses caused by the subsequent change of the flow direction of the incoming gas is reduced. As a result, gas-liquid separation with high efficiency can be achieved. (3) With the feature that a curved member having a vent hole, which is positioned in the position between the conical receiving plate and a spacing, and over a central opening of the conical receiving plate, provides a small chamber, the liquid component that has not been recovered by the conical receiving plate, is captured by an internal surface of the curved member and converted into drops. The drops fall down towards a lower surface of the cylindrical vessel through the central opening of the conical receiving plate, and are then recovered through a drain. (4) With the feature that a vent hole of the gap and the vent of the curved member are arranged in opposite positions 180 ° around the center of the curved member, the vent hole of the curved member and the vent hole of the separation, they can be separated from one another to the maximum, by causing the gas discharged through the ventilation hole of the curved member to remain temporarily in a space defined by an external surface of the curved member, a lower surface of the separation and a surface internal of the cylindrical vessel. As a result, the liquid can be effectively prevented from being blown out with the gas after the gas-liquid separation. (5) With the feature that the curved member and spacing are formed integrally with each other, the position relationship between the ventilation holes formed in the curved member and the spacing, respectively, is maintained securely. (6) With the feature that the distance between the gas inlet gate and the collision surface is set to be in the range of 3 - 15 mm, the pressure loss can be limited to a lower level, assuring a at the same time the gas-liquid separation by collision. (7) With the feature that the gas inlet gate is provided with a throat portion to increase the gas flow velocity, it is possible to improve the gas-liquid separation effect by collision and, in addition, to effectively carry out the gas-liquid separation by the centrifugal force in the subsequent process. (8) With the feature that the collision surface and the guide portion provided both in the cylindrical container, are integrally formed, and a joint / separation mechanism is provided for joining and separating the integral member through the gate of gas entry, it is possible to maintain the air tightness of the cylindrical container and improve the gas-liquid separation effect.

INDUSTRIAL APPLICABILITY The present invention can be suitably employed to dehumidify the air that is supplied to, for example, air operated machines, such as air motors and air brakes, air blowers for blowing fine powder, and apparatus for blow air to dry and cool.

Claims (8)

1. A gas-liquid separator comprising a gas inlet port provided on the side surface of a cylindrical vessel having a hollow chamber formed therein, a discharge gate to discharge gas after the gas-liquid separation provided in the part top of the cylindrical vessel, a collision surface with which the gas supplied from the gas inlet gate collides and a guiding part to change the direction of gas flow after the collision, to make it flow along a surface of the inner wall of the cylindrical vessel in a circumferential direction provided in the cylindrical vessel at a position in front of the gas inlet gate, a receiving plate having a substantially conical shape with an opening formed in the center thereof, provided in a portion upper part of the hollow chamber with a central portion that projects downward to divide the r the hollow chamber in upper and lower hollow chambers, the upper hollow chamber is divided by the receiving plate communicated with the discharge gate, and a separation having at least one ventilation hole and dividing the upper hollow chamber placed on top of the receiving plate in opposite relation, characterized in that the collision surface is curved to follow a surface of the internal wall of the cylindrical or inclined container to extend a flow passage to the downstream side. The gas-liquid separator according to claim 1, characterized in that the curved member having at least one ventilation hole is positioned in a position between the receiving plate and the separation and over the opening of the receiving plate, a small chamber is formed between the curved member and an upper surface of the receiving plate. The gas-liquid separator according to claim 2, characterized in that the ventilation opening of the separation and the ventilation hole of the curved member are arranged in opposite positions 180 ° around the center of the curved member. 4. The gas-liquid separator according to claim 3, characterized in that the curved member and the separation are formed integrally with each other. 5. The gas-liquid separator according to claims 1-4, characterized in that the distance between the gas inlet gate and the collision surface are set to be in a range of 3 - 15 mm. The gas-liquid separator according to claims 1-5, characterized in that the gas inlet gate is provided with a throat portion to increase the gas flow rate. The gas-liquid separator according to claims 1-6, characterized in that the collision surface and the guide part, both provided in the cylindrical vessel, are formed as an integral member, and a connecting mechanism is provided / separation to join and separate the integral member through the gas inlet gate, 8. The gas-liquid separator according to claims 1-7, characterized in that the surface of the internal wall of the cylindrical container, the surface of The collision and the guide part define a flow passage space, and the gas introduced from the entry port is blown out from an outlet at a downstream end of the flow passage space along the surface of the inner wall of the cylindrical vessel. SUMMARY OF THE INVENTION In a gas-liquid separator, wherein a high-pressure air introduction gate (la) and an air discharge gate (Ib) are provided, respectively, in the lower and upper portions of a cylindrical vessel having a hollow chamber formed therein, a blowing guide plate (5) is provided in the cylindrical vessel (1), with which the air supplied from the high-pressure air inlet gate (la) collides, thereby changing the direction of air flow, a conical receiving plate (6) having an opening formed in the center of the same in an upper portion of the hollow chamber, to separate the hollow chamber in upper and lower hollow chambers, the upper hollow chamber divided by the conical receiving plate (6), which communicates with the air discharge gate (lb) and a gap (8) having a vent hole formed therein, and defining the upper hollow chamber positioned above the conical receiving plate (6) in opposite relation, the collision surface of the blow guide plate (5) it is curved to follow a surface of the internal wall of the cylindrical vessel (1) or inclined to extend a flow passage to the downstream side. With such a structure, the liquefaction of the moisture by collision with the surface, that is, the separation into gas and liquid, is effected efficiently, and the loss of energy caused by the subsequent change in the direction of the incoming air flow is reduces, resulting in that gas-liquid separation with high efficiency can be achieved.