JP2011104514A - Dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collector with a simple structure, the dust collector being manufactured at low cost, having an excellent dust collection function and requiring less maintenance. <P>SOLUTION: The dust collector includes: a shell part 10 having an exhaust hole set near the upper part of a side wall 12; a lid part 20 covering an upper end of the shell; an introducing pipe 30 penetrating through the lid part 20; an ejector 40 mounted on the introducing pipe 30; and a liquid dropping structure. The liquid dropping structure includes an intermediate vertical wall 23 supported by the lid part and downward extended from the exhaust hole, a horizontal partition wall 14 partitioning the inside of the shell into upper and lower parts to form a through-hole 141 and an opening 142, and an inner vertical wall 15 surrounding the opening 142, vertically extended and positioned in the inner side of the intermediate vertical wall 23, and is formed in a winding shape. The horizontal partition wall 14 is provided with a liquid passing small hole 143 for dropping liquid, and the lower part of the shell 10 is provided with a liquid takeout part 50. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dust collector that collects dust and vapor from a gas, such as air, in the apparatus.

  Many types of dust collectors are known that remove dust from the gas by holding the dust, dust, and other dust in the gas sprayed from the nozzle and collecting the water droplets together with the dust. Yes.

  For example, the apparatus described in Patent Document 1 sprays water on exhaust gas introduced into a chamber, guides the gas-liquid mixture to a lower storage tank through a pipe, and releases water vapor (micro water droplets) from the storage tank. The structure is such that the water is guided to the watering tower through a cyclone and fine particles in the water vapor are removed. Therefore, the apparatus is large, the cost is high, and it is not suitable for small-scale applications.

  As a small-sized device, for example, there is one described in Patent Document 2. This device divides the inside of a box-shaped casing into a front part and a rear part with a partition extending in the vertical direction, a filter is provided at the upper end at the rear part of the casing, a fan and a water jet nozzle are arranged at the upper part, and a collision plate at the lower part The air discharge port is formed in the outer wall of the front part of the casing, and the part below the collision plate is used as a water tank. The air introduced into the rear part of the casing through the filter by the fan is mixed with the jet water from the nozzle, hits the collision plate, passes through the lower part of the partition, rises up the front part of the casing, and goes out of the device from the air discharge port. Released. The dust in the air adheres to the jet water, and the gas-liquid mixture comes into contact with the partition wall while ascending the front part of the casing, and the water drops as water droplets and falls into the water tank.

  Although this device is small, it frequently requires maintenance such as care for the motor provided in the fan in the casing and replacement of the filter. Further, moisture removal from the gas-liquid mixture is only performed by a partition wall extending vertically in the casing, and therefore sufficient moisture removal cannot be performed. However, this device is intended to generate negative ions due to the Leonard effect (ionization phenomenon of the surrounding air accompanying the water droplet breakup), so rather, it actively releases fine water droplets containing negative ions. .

  Further, the negative ion generator (Patent Document 3) described as the prior art in Patent Document 2 is divided into a front part and a rear part by a partition extending in a vertical direction in a box-shaped casing. A gas insertion port is provided in the part, a nozzle and a partition below it are provided in the interior, and a separation plate is formed in the rear part of the casing, which obliquely protrudes from the inner wall and the partition wall to form a flow path on the zigzag. The gas outlet is used, and the lower end of the casing is a water tank.

  In this apparatus, a separation plate provided at a rear portion is fixed to these wall portions in a narrow space sandwiched between an inner wall of the casing and a partition wall. Therefore, when it is used for dust collection and a large amount of dust adheres to the separation plate, the removal becomes very difficult. However, according to the description in Patent Document 3, this apparatus is intended only for the generation of negative ions by the Leonard effect and not for dust collection.

JP 2000-107540 A JP 2000-325459 A JP-A-8-215309

  An object of the present invention is to solve these problems of the prior art, and to provide a dust collector that has a simple structure, excellent dust collection function and reduced maintenance even if the manufacturing cost is low.

  In order to achieve the above-mentioned object, the present invention is provided with a bottom wall and a side wall, an upper end being opened and an exhaust hole provided near the upper part of the side wall, and a lid placed so as to cover the upper end of the body. An inlet pipe that extends through the lid portion and extends downward through the lid portion and is supported by the lid portion, and an ejector that is mounted above the lid portion of the introduction pipe and has a jet port directed downward. A liquid fall structure positioned at an upper portion of the body part, the liquid fall structure being supported by the lid part and positioned at a gap inside the body part and extending below the exhaust hole; A horizontal partition wall that is supported by the body portion and extends substantially horizontally to partition the inside of the body portion vertically, and has a through hole for inserting the introduction pipe and an opening adjacent to the through hole, and an opening of the horizontal partition wall. An inner vertical wall that surrounds and extends vertically and is positioned with a gap on the inner side of the intermediate vertical wall. Thus, the liquid falling structure is configured so that the gas introduced from the introduction pipe rises from the position below the horizontal partition wall to the void surrounded by the inner vertical wall and is above the horizontal partition wall. And flows downward from the lower surface of the lid portion along the inner surface of the intermediate vertical wall, and rises through the gap between the intermediate vertical wall and the upper portion of the trunk portion and is discharged out of the apparatus from the exhaust hole. A dust collecting device is provided, wherein the horizontal partition wall is provided with a small hole for passing liquid and a liquid take-out portion is provided at a lower portion of the body portion. To do.

  The dust collector of the present invention has a structure including a barrel portion with an open upper end and a lid portion covering the barrel portion. Then, an ejector having a jet port that is directed downward is mounted at a position above the lid portion of the introduction tube that supports the introduction tube on the lid portion. Therefore, by the operation of the ejector, the air in the introduction pipe is sent downward and guided into the body portion.

  The liquid dropping structure located at the upper part of the trunk part is supported by the lid part and is positioned at a gap inside the trunk part and extends downward from the exhaust hole, and is supported by the trunk part and extends substantially horizontally. And a horizontal partition wall in which an opening is formed, and an inner vertical wall that surrounds the opening of the horizontal partition wall and extends in the vertical direction and is positioned with a gap inside the intermediate vertical wall. And thereby, the liquid falling structure, the gas introduced from the introduction pipe rises from the position below the horizontal partition wall to the space surrounded by the inner vertical wall and reaches above the horizontal partition wall, It flows and descends along the inner surface of the intermediate vertical wall from the lower surface of the lid, and is configured to rise through the gap between the intermediate vertical wall and the upper part of the trunk and to be discharged out of the apparatus from the exhaust hole. . In other words, a zigzag flow path is formed by the upper body wall, the intermediate vertical wall, and the inner vertical wall. Therefore, the gas introduced from the introduction pipe is mixed with the water jetted from the ejector to form a gas-liquid mixture, but when this gas-liquid mixture flows through this zigzag flow path, It becomes water droplets and adheres to the road wall. As a result, the gas discharged from the exhaust hole is the one from which dust and moisture are removed and moisture is sufficiently removed.

  In addition, the horizontal partition wall has a through-hole for introducing the introduction pipe and an opening adjacent to the through-hole, and a small hole for liquid passage through which the liquid is dropped is provided to partition the inside of the body portion vertically. Therefore, the gas-liquid mixture below the horizontal partition wall flows to the upper side of the horizontal partition wall through the opening, and surely passes through the folded channel.

  On the other hand, the water stored on the horizontal partition wall due to the separation of the gas and liquid falls through the small holes for liquid passage to the liquid take-out portion below the trunk part below the horizontal partition wall.

  In particular, since the introduction pipe is provided with an ejector, outside air can be introduced into the apparatus by the apparatus itself, and it is not always necessary to install a blower outside the apparatus. Moreover, dust collection can be performed without the need for a filter. Therefore, maintenance such as care for the blower and replacement of the filter is not required. In addition, since the introduction pipe and the intermediate vertical wall are supported by the lid part, and the horizontal partition wall and the inner vertical wall are supported by the trunk part, it is only necessary to place the lid part on the trunk part and fix it as necessary. In addition, it is possible to install an introduction pipe and form a zigzag flow path. Further, if the lid is removed, the intermediate vertical wall constituting the zigzag folded channel is exposed on the back side of the lid, and the inner vertical wall and the horizontal partition wall are exposed on the upper open side of the trunk, so that the zigzag folded channel is formed. Even when dust or the like accumulates, it can be easily cleaned and maintenance is extremely easy.

  According to the device of the present invention, not only dust and dust but also steam and odor such as steam and steam can be removed from the air. In this case as well, vapor or odor components adhere to the water droplets ejected from the ejector and are removed together with the water droplets by the liquid drop structure. Although a large amount of water vapor is generated at a cooking place in a restaurant, etc., the apparatus of the present invention can quickly remove the water vapor. In the present specification and claims, microscopic suspended matters in the air such as dust, dust, vapor, and odor components are referred to as “dust”.

  Further, in the device of the present invention, since the gas-liquid mixture flows through the zigzag flow path as described above, if the air or steam introduced into the device is high temperature, the heat is absorbed at the contact location and the exhaust hole Exhausted from. Therefore, a cooling effect can be obtained in addition to the dust removing effect.

It is a front view of the dust collector concerning a first embodiment of the present invention. It is a side view of the dust collector shown in FIG. It is a top view of the dust collector shown in FIG. It is a vertical front view of the dust collector shown in FIG. It is a vertical front view of the state which decomposed | disassembled the dust collector shown in FIG. It is a top view of the dust collector body shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 3 show a dust collector according to a first embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. FIG. 5 is a longitudinal front view of the disassembled state, and FIG. 6 is a plan view of the apparatus body. In addition, the said longitudinal cross-sectional view has shown the cutting end surface and abbreviate | omitting the outline of back in order to make a structure intelligible.

  This dust collector 1 is mounted on a carriage 2 and is fixed, and is a small portable type that can be used by moving to a required location. The dust collector 1 includes a cylindrical body portion 10, a lid portion 20 placed on the body portion, and an introduction tube 30 extending through the lid portion 20. The body portion 10 includes a bottom wall 11 and a side wall 12, an upper end is opened, a number of small exhaust holes 13 are provided near the upper portion of the side wall (FIG. 5), and the body portion 10 is fixed to the carriage 2 by a lower leg portion 17. Yes.

  The lid portion 20 includes a circular flat plate-shaped top plate 21, an outer vertical wall 22 that hangs from the periphery thereof, and an intermediate vertical wall 23 that hangs concentrically on the radially inner side from the outer vertical wall 22.

  The introduction pipe 30 extends linearly in the vertical direction through the opening 24 provided in the lid portion 20, is fixed to the lid portion 20 by welding or bolting, and the lower end is substantially from the bottom wall 11 of the trunk portion 10. Extending to a height of 1/3, a lower wall 31 is provided. An opening 32 is provided in the side wall of the lower end portion of the introduction pipe 30. An ejector 40 is mounted at a position above the lid portion of the introduction pipe 30, one end of which extends into the introduction pipe 30 and bends downward, and a jet outlet 41 is provided at the tip thereof. . The other end of the ejector 40 is a connection port 42 protruding outside the introduction pipe 30 and is connected to a high-pressure water supply source (not shown) by a hose or piping.

  A horizontal partition wall 14 that extends substantially horizontally and divides the inside of the trunk portion up and down is fixed to the upper portion of the trunk portion 10 by welding. The horizontal partition wall 14 is formed with a through hole 141 and an opening 142 for inserting the introduction pipe 30. The through hole 141 is slightly larger than the outer shape of the introduction tube 30, and the peripheral edge of the hole is bent downward with a round shape so that the introduction tube 30 can be easily inserted from above. In a state where the introduction pipe 30 is passed through the through hole 141, a minute gap is formed therebetween, and functions as a small hole 143 for passing liquid that drops the liquid accumulated on the horizontal partition wall 14. Thus, by forming the small holes for liquid passage by the through holes 141 through which the introduction pipe 30 is passed, the structure is simplified and the introduction pipe is mounted when the lid 20 is mounted on the trunk portion 10. 30 can be easily passed through the through hole 141. The opening 142 is provided adjacent to the through hole 141, and the cylindrical inner vertical wall 15 is passed through and fixed by welding so as to be in close contact with the inner periphery thereof.

  Each wall part mentioned above is arrange | positioned as follows. The lower end of the intermediate vertical wall 23 reaches a position below the exhaust hole 13. The inner vertical wall 15 has an upper end that extends to the vicinity of the top plate 21 of the lid portion 20 and is positioned above the lower end of the intermediate vertical wall 23, and a lower end that extends slightly below the horizontal partition wall 14. These wall portions thus constitute a falling structure. The operation of this falling structure will be described later.

  A liquid take-out part 50 is provided at the lower part of the body part 10. The liquid take-out part 50 is formed by a tube extending along the bottom wall 11 of the body part 10, and one end is an opening 51 opened in the bottom wall 11, and the other end is a connection port 52 protruding from the side wall 12. ing. As shown in FIG. 1, a hose or a pipe 71 extending from the drainage device 70 is connected to the connection port 52.

  An opening 25 is formed in the top plate 21 of the lid 20 at a position above the inner vertical wall 15, and the opening is closed by a cover plate 26. On the lower surface of the cover plate 26, a protruding edge extending downward is provided in the vicinity of the peripheral edge portion, and is fitted into the opening 25. When the cover plate 26 is removed, the inside of the trunk portion 10 can be seen from above, and the state of water accumulation in the trunk portion 10 can be seen.

  The drainage device 70 includes a pump 73 driven by a motor 72 and is supported on the carriage 2. A drainage hose or pipe (not shown) is connected to the drainage port of the pump 73 and communicates with the liquid storage tank.

  The trolley 2 includes a pedestal 2a on which the dust collector 1 and the drainage device 70 are placed and fixed, and casters 2b fixed at the bottom of the four corners of the pedestal.

The dimensions of the main part of the dust collector 1 are as follows.
-The outer diameter of the trunk 10: 400mm
・ Height of the trunk 10 (bottom wall to upper end): 1000 mm
-Outer diameter of lid 20: 500 mm
-Height of the lid 20 (outer vertical wall 22): 100mm
・ Outer diameter of introduction pipe 30: 140 mm
-Height of introduction pipe 30 (lower end to upper end): 1150 mm
・ Diameter of opening 142: 170 mm

  The dust collector 1 can be used by opening the upper end of the introduction pipe 30 and sucking ambient air, or by using a tube connected to the upper end of the introduction pipe 30 and sucking from the tip of the tube. You can also. Suction can be obtained by the venturi effect of the ejector 40. Furthermore, you may assist suction with the air blower provided in the suction path.

  The dust collector 1 operates as follows. As shown in FIG. 4, the air A introduced into the introduction pipe 30 is mixed with the fine water droplets W sprayed at high speed in a spray form from the ejector 40 and flows into the gas-liquid mixture AW to flow through the introduction pipe 30. From the opening 32 to the lower part of the body 10. As a result, the dust in the air adheres to the water droplets. As the internal pressure of the body portion 10 increases, the gas-liquid mixture AW is discharged out of the apparatus as follows.

  The gas-liquid mixture AW in the body portion 10 rises from the position below the horizontal partition wall 14 to the space surrounded by the inner vertical wall 15 and flows upward above the horizontal partition wall 14. At this time, when the gas-liquid mixture AW comes into contact with the inner wall surface of the inner vertical wall 15 and the lower wall surface of the top plate 21 of the lid portion 20, a part of moisture adheres to the wall surface and is removed from the gas-liquid mixture AW. The Next, the gas-liquid mixture AW flows and descends along the inner surface of the intermediate vertical wall 23 from the lower surface of the lid 20. Here again, when the gas-liquid mixture AW contacts the lower surface of the lid and the inner surface of the intermediate vertical wall, moisture adheres to these surfaces and is removed from the gas-liquid mixture AW. Further, the gas-liquid mixture AW rises in the gap between the intermediate vertical wall 23 and the upper portion of the trunk side wall 12. Here again, the gas-liquid mixture AW is removed by contacting and adhering to these wall surfaces.

  As described above, when the gas-liquid mixture AW is exhausted from the exhaust hole 13 of the outer vertical wall 22 through the zigzag flow path, the air is almost free of water droplets containing dust. Thereby, clean air is discharged from the dust collector 1.

  Moisture adhering to the wall surface when flowing through the above-mentioned zigzag folded flow channel flows downward one after another and accumulates on the horizontal partition wall 14. Then, the accumulated moisture falls from the small hole 143 for liquid passage between the peripheral edge of the through hole 141 and the outer surface of the introduction pipe 30. The dropped water is accumulated in the lower portion of the body portion 10 and is discharged from the liquid take-out portion 50 to the outside of the device through the drainage device 70.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, A various change is possible unless it deviates from the meaning. For example, if the exhaust from the exhaust hole 13 may be discharged radially in the body radial direction, the outer vertical wall 22 of the lid 20 can be omitted. The water accumulated in the body part 10 may be discharged from the liquid take-out part 50 by its own weight instead of being actively discharged by the liquid draining device 70. Alternatively, a water tank may be installed in the lower portion of the body part 10 so that the water tank can be taken in and out. The cart 2 can be in various forms that can be moved, or the dust collector may be placed on or fixed to the floor without using the cart.

DESCRIPTION OF SYMBOLS 1 Dust collector 10 Body 12 Side wall 13 Exhaust hole 14 Horizontal partition wall 15 Inner vertical wall 20 Lid part 21 Top plate 22 Outer vertical wall 23 Middle vertical wall 30 Introducing pipe 40 Ejector 41 Jet outlet 70 Drainage device 141 Through-hole 142 Opening 143 Small hole A for liquid passage Air AW Gas-liquid mixture W Minute water droplet

Claims (3)

A body having a bottom wall and a side wall, the upper end being open and an exhaust hole being provided near the upper part of the side wall;
A lid portion placed so as to cover the upper end of the trunk portion;
An introduction pipe penetrating through the lid portion and extending downward in the body portion and supported by the lid portion;
An ejector having a spout attached to the upper part of the introduction pipe above the lid part and facing downward;
A liquid falling structure located at the upper part of the trunk,
The falling structure is
An intermediate vertical wall that is supported by the lid portion and that is located on the inner side of the trunk portion with a gap extending below the exhaust hole;
A horizontal partition wall that is supported by the body portion and extends substantially horizontally to partition the inside of the body portion vertically, and has a through hole for inserting the introduction pipe and an opening adjacent to the through hole;
An inner vertical wall that surrounds the opening of the horizontal partition wall and extends in the vertical direction, and is positioned with a gap inside the intermediate vertical wall;
As a result, the liquid falling structure is configured such that the gas introduced from the introduction pipe rises from the position below the horizontal partition wall to the space surrounded by the inner vertical wall and rises above the horizontal partition wall. Reaches the inner surface of the intermediate vertical wall from the lower surface of the lid portion and descends, rises the gap between the intermediate vertical wall and the upper portion of the trunk portion, and is discharged from the exhaust hole to the outside of the apparatus. Configured as
The horizontal partition wall is provided with a small hole for passing liquid to drop the liquid,
A dust collector, wherein a liquid take-out portion is provided at a lower portion of the body portion.   The dust collector according to claim 1, wherein the lid is detachably attached to the body.   The small hole for liquid passage is formed by a minute gap between a through hole formed in the lateral partition wall and the introduction pipe for allowing the introduction pipe to pass therethrough. The dust collector described in 1.

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