JP6037550B2 - Suction table - Google Patents

Description

  The present invention relates to a suction table for sucking gas generated from a site using a volatile drug.

  For example, in a pathological examination in a hospital, an operation of cutting out a specimen organ that has been fixed by immersion in formalin (preventing changes in cell tissue morphology) to an appropriate size is performed. During the cutting operation, formaldehyde volatilizes from formalin.

  On the other hand, specific chemical substance prevention rules have been revised, and for example, handling of formaldehyde, 1,3-butanediene, and diethyl sulfate has come to require great care. Even in a pathology laboratory, it is required that formaldehyde does not diffuse. For example, there is a demand for work in a draft chamber (see Patent Document 1).

JP 2012-021752 A

  However, the cutout operation in the draft chamber is poor in workability and often does not have a cutout table. In an operation using a cutting table installed indoors without using a draft chamber, formaldehyde diffuses into the room.

  This invention solves the said subject, and it aims at providing the suction table which can suppress the spreading | diffusion of the gas emitted from the site | part using a volatile chemical | medical agent.

  In order to solve the above-described problems, the present invention provides a suction table for sucking gas generated from a site when a site using a volatile chemical is placed, and a plurality of vent holes forming a main suction port Is a flat plate provided on the entire surface, and is provided in a first support plate on which the portion is placed, and in a space immediately below the first support plate, and is used to guide the gas on the first support plate downwardly by suction. 1 rectifying mechanism, a wind box communicating with the leeward side of the first rectifying mechanism, a second rectifying mechanism provided in the wind box for sucking and guiding the gas in the wind box, and the second rectifying mechanism An exhaust duct that communicates with the leeward side and can be connected to an external exhaust fan is provided.

  In order to perform the cutting operation, the part is placed on the first support plate. During the work, harmful gas is generated and diffuses over the entire surface of the first support plate. On the other hand, when the external exhaust fan is operated, a ventilation path is formed through the exhaust duct, the second rectification mechanism, the wind box, and the first rectification mechanism. By the first rectifying mechanism, the harmful gas on the first support plate is uniformly sucked and guided downward into the wind box. By the second rectifying mechanism, the harmful gas in the wind box is uniformly sucked and guided and exhausted from the exhaust duct. Thereby, diffusion of harmful gas can be suppressed.

  In the above invention, preferably, the first rectifying mechanism has a plurality of flat plates having different lengths in the ventilation direction, aligns the leeward side end surfaces of the plurality of flat plates, the long flat plate is downward, and the short flat plate is upward. These are arranged in the order of length so that the dimension between the flat plates becomes narrower from the bottom to the top.

  Thereby, the ventilation resistance of each ventilation path becomes equal, and the harmful gas on the first support plate can be evenly sucked and guided downward.

  In the above invention, preferably, the second rectifying mechanism has a plurality of flat plates having different lengths in the ventilation direction, and when the leeward side end surfaces of the plurality of flat plates are aligned and guided upwardly by the exhaust duct, the second rectifying mechanism is short. The flat plate is arranged downward, the long flat plate is arranged upward, and in order of length, the dimension between the flat plates is arranged so as to increase from the lower side to the upper side.

  Thereby, the ventilation resistance of each ventilation path becomes equal, and the toxic gas in the wind box can be uniformly sucked and guided downward.

  In the above invention, preferably, the side surface of the wind box that communicates with the leeward side of the first rectifying mechanism has a wind box upper side surface portion that is located above the first support plate, and the wind box upper side surface portion. And a sub-suction port for side-sucking and guiding the gas on the first support plate, and a partition plate for partitioning the gas from the main suction port and the gas from the sub-suction port inside the wind box. .

  Thereby, even when the downward suction guidance by the main suction port is insufficient, it can be handled by the side suction guidance by the sub suction port.

  In the above invention, preferably, the sub suction port has a sliding door type air volume adjusting mechanism.

  Thereby, by adjusting the opening / closing amount of the slide door, an effect can be expected as in the rectifying mechanism.

  In the above invention, preferably, the first support plate is a flat plate provided on the side of the first support plate and supplying water to the first support plate, and a flat plate provided with a large number of water passage holes. A second support plate that supports the mechanism from below; a sink that is provided directly below the second support plate and has a taper that decreases toward the deepest portion; and a drain trap that communicates with the deepest portion of the sink. In addition.

  Thereby, the surface of the 1st support plate 11 can be easily wash | cleaned after completion | finish of a cutting-out operation | work.

  In the above invention, preferably, the first support plate is detachable, and the first rectifying mechanism is made of a transparent or translucent material.

  As a result, the internal dirt over time can be confirmed, and if it is dirty, it can be easily washed.

  In the above invention, preferably, the outer edge portion of the first support plate has a taper that becomes lower toward the first support plate.

  As a result, there is no hindrance to the cutting operation. On the other hand, water does not spill out of the first support plate during the cleaning operation.

  In order to solve the above-described problems, the present invention provides a suction table for sucking gas generated from a site when a site using a volatile chemical is placed, and a plurality of vent holes forming a main suction port Is provided in a table top surface provided on the entire surface, a table internal space immediately below the table top surface, and a rectifying mechanism that guides the gas on the table top downward, and communicates with the leeward side of the rectifying mechanism, An exhaust duct that can be connected to an external exhaust fan is provided.

  In order to solve the above-described problems, the present invention provides a suction table for sucking gas generated from a site when a site using a volatile chemical is placed, and a plurality of vent holes forming a main suction port Are provided on the entire surface of the table, an internal space directly below the table surface, and a rectifying mechanism that sucks and guides the gas on the table surface downward, and communicates with the leeward side of the rectifying mechanism. And an exhaust duct connectable to the other exhaust fan.

  According to the suction table of the present invention, it is possible to suppress diffusion of gas generated from a site using a volatile drug.

Overall perspective view Overall plan view Overall front view Overall side view A-A cross section B-B cross section (A) Perspective view of the first straightening mechanism (b) Plan view (c) Standard sectional view Detailed sectional view of the outer edge of the first support plate Operation explanatory diagram of the first rectifying mechanism (a) plan view (b) sectional view Operation explanatory diagram of second rectification mechanism (a) Longitudinal sectional view (b) Short sectional view Overall perspective view of modification

~Constitution~
1 is an overall perspective view of the suction table, FIG. 2 is an overall plan view, FIG. 3 is an overall front view, FIG. 4 is an overall side view, and FIG. ) Is a cross-sectional view, FIG. 6 is a cross-sectional view taken along the line BB (wind box longitudinal direction),
The suction table includes a casing 1 and four legs 2. The main structure of the suction function is included in the housing 1. The number of legs 2 is not limited as long as three or more legs 2 can stably support the casing 1. The housing 1 corresponds to a table top.

  The suction table includes, as main components, a first support plate 11, a first rectifying mechanism 21, a wind box 31, a second rectifying mechanism 41, an exhaust duct 51, a slide door 36, a partition plate 37, and water supply. A stopper 61, a second support plate 71, a sink 81, and a drain trap 86 are provided.

  The first support plate 11 supports the part. Specifically, a board is placed and a part is placed on the board. The first support plate 11 is a metal plate that is punched on the entire surface called a punching metal, and a large number of air holes 12 form a main suction port 13. A locking portion 14 is provided on the outer periphery of the first support plate 11. On the other hand, a locking plate 6 protruding inward is also provided on the entire inner wall of the housing 1. The first support plate 11 is supported in the housing 1 by the locking portion 14 being locked to the locking plate 6 (see FIG. 8 described later).

  Further, the first support plate 11 is provided with a rotary handle 15 and can be removed by gripping the rotary handle 15. Furthermore, if the 1st support plate 11 is divided | segmented into plurality, it will become easy to remove.

  The first rectifying mechanism 21 is provided in a space immediately below the first support plate 11 and is supported by the second support plate 71. The gas on the first support plate 11 is suctioned downward so as to be uniform.

  7A is a perspective view of the first rectifying mechanism, FIG. 7B is a plan view, and FIG. 7C is a standard cross section. The 1st rectification mechanism 21 is comprised from the several flat plates 22-24 from which the length of a ventilation direction differs. The flat plate 22-24 leeward side end surfaces are aligned with a reference surface assumed to be perpendicular to the ventilation direction.

  The longest plate 22 is disposed at the lowermost position, the middle long plate 23 is disposed at the intermediate position, and the shortest plate 24 is disposed at the uppermost position. That is, the ventilation path becomes longer toward the lower side, and the ventilation path becomes shorter toward the upper side.

  On the other hand, a space 25 formed between the second support plate 71 and the flat plate 22, a space 26 formed between the flat plate 22 and the flat plate 23, a space 27 formed between the flat plate 23 and the flat plate 24, The cross section becomes narrower in the order of the space 28 formed between the flat plate 24 and the partition plate 37. FIG. 5 illustrates the dimensions.

  Since the ventilation resistance is set based on the ventilation path length and the ventilation cross-sectional area, the ventilation resistance of each ventilation path is equalized by the above-described configuration of the first rectification mechanism 21, and the first rectification mechanism 21 has the first support plate. The gas above 11 is guided to be sucked downward so as to be uniform (detailed in the operation).

  Moreover, it is preferable that the 1st rectification | straightening mechanism 21 is comprised with a transparent or translucent material, for example, PVC (polyvinyl chloride). Furthermore, it is preferable that the first rectifying mechanism 21 is only supported by the second support plate 71, is not restrained by others, and can be easily removed. However, it is locked to the positioning stopper 9 so as to be arranged at an appropriate position. Moreover, the 1st rectification | straightening mechanism 21 is divided into 3 by the ventilation direction parallel so that extraction is easy. FIG. 7 is a drawing of divided parts.

  The wind box 31 is a hollow rectangular parallelepiped that communicates with the leeward side of the first rectifying mechanism 21. A side surface communicating with the leeward side of the first rectifying mechanism 21 of the wind box 31 is constituted by an upper side surface portion 32 and a lower side surface portion 33. The lower side surface portion 33 is opened (an opening is formed), and the gas that has passed through the first rectifying mechanism 21 is sucked and guided into the wind box 31.

  A slide door 36 is provided on the upper side surface portion 32. The slide door 36 has an air volume adjustment mechanism that adjusts the suction air volume according to the opening / closing amount of the door, and guides the gas on the first support plate 11 to the side to form a sub suction port 34. Further, an L-shaped partition plate 37 that partitions the gas from the main suction port 13 and the gas from the sub suction port 34 is provided inside the wind box 31. Note that punching metal may be used instead of the slide door 36. In that case, a rectifying mechanism for the sub suction port is required.

  An exhaust duct 51 is connected to one end of the upper surface of the wind box 31.

  A second rectification mechanism 41 is provided in the wind box 31 and sucks and guides the gas in the wind box 31 to the exhaust duct 51 so as to be uniform.

  The 2nd rectification mechanism 41 is comprised from the several flat plates 42-45 from which the length of a ventilation direction differs. The leeward side end surfaces of the flat plates 42 to 45 are aligned with a reference surface assumed to be perpendicular to the center line in the ventilation direction. The ventilation direction center line in the wind box 31 and the ventilation direction center line of the exhaust duct 51 intersect at a substantially right angle, and the ventilation direction center line smoothly continues at the corners.

  The shortest plate 42 is disposed at the bottom, the next short plate 43 is disposed above the flat plate 42, the next short plate 44 is disposed above the flat plate 43, and the longest plate 45 is disposed at the top. That is, the ventilation path becomes longer toward the upper side, and the ventilation path becomes shorter toward the lower side. Moreover, the flat plate 42-45 is made into predetermined length, respectively, and the flat plate 42-45 windward side end surface is arrange | equalized with another reference plane.

  However, when the exhaust duct 51 is connected to the end of the lower surface of the wind box 31 and guided downward, the configuration of the second rectifying mechanism 41 is upside down.

  On the other hand, a space 46 formed between the partition plate 37 and the flat plate 42, a space 47 formed between the flat plate 42 and the flat plate 43, a space 48 formed between the flat plate 43 and the flat plate 44, and the flat plate 44. And the space 50 formed between the flat plate 45 and the space 50 formed between the flat plate 45 and the partition plate 37 in this order. FIG. 5 illustrates the dimensions.

  Since the ventilation resistance is set based on the ventilation path length and the ventilation cross-sectional area, the ventilation resistance of each ventilation path is equalized by the above-described configuration of the second rectification mechanism 41, and the second rectification mechanism 41 is installed in the wind box 31. Are sucked into the exhaust duct 51 so as to be uniform (detailed in the operation).

  The exhaust duct 51 communicates with the leeward side of the second rectifying mechanism 41, and guides upward suction by connecting to an external exhaust fan 52. The exhaust duct 51 is provided with a damper 53 for adjusting the exhaust air volume and a measurement port 54 for measuring the suction pressure.

  The water tap 61 is provided beside the first support plate 11 and supplies water to the first support plate 11 by connecting to an external water supply hose.

  The second support plate 71 supports the first rectifying mechanism 21 from below. The second support plate 71 is a metal plate punched on the entire surface called punching metal, and has a large number of water holes 72. The second support plate 71 has a leg portion 73, and the leg portion 73 is placed on the bottom of the sink 81.

  The sink 81 is a space located directly below the second support plate 71 in the lower part of the housing 1 and has a taper 82 that becomes lower toward the deepest part. The drain trap 86 communicates with the deepest part of the sink 81. By connecting to an external drain hose, the water supplied to the first support plate 11 is drained.

  FIG. 8 is a detailed cross-sectional view of the outer edge of the first support plate 11. That is, when the first support plate 11, the first rectifying mechanism 21, and the second support plate 71 are removed, the housing 1 has a hollow pool structure in which the upper part is opened. The outer edge portion 7 formed on the outer edge of the first support plate 11 on the upper surface of the housing 1 has a taper 8 that becomes lower toward the first support plate 11.

~ Operation ~
The operation (use example) of the suction table of this embodiment will be described. Each operation at the time of part cutting operation, normal cleaning operation, and cleaning operation over time will be described.

・ Aspiration operation In the pathological examination of a hospital, work to cut out the specimen organ fixed in formalin to an appropriate size. The specimen organ is placed on the first support plate 11 via the scissors. During the cutting operation, harmful gas containing formaldehyde is generated and diffused over the entire surface of the first support plate 11.

  On the other hand, when the exhaust fan 52 is operated, a ventilation path is formed through the exhaust duct 51, the second rectification mechanism 41, the wind box 31, and the first rectification mechanism 21.

  FIG. 9 is an operation explanatory diagram of the first rectifying mechanism 21. The harmful gas diffuses over the entire surface of the first support plate 11. For convenience of explanation, the first support plate 11 is divided into areas A to D. In practice, the areas A to D are continuous with each other and are not clearly divided.

  The harmful gas in the area A is guided to the wind box 31 through the ventilation path a passing through the space 28. The harmful gas in the area B is guided to the wind box 31 through the ventilation path b passing through the space 27. The harmful gas in the area C is guided to the wind box 31 through the ventilation path c passing through the space 26. The harmful gas in the area D is guided to the wind box 31 through the ventilation path d passing through the space 25.

  At this time, the ventilation resistance increases as the ventilation path length increases, and the ventilation resistance decreases as the ventilation cross-sectional area increases. In the present embodiment, the path length of the ventilation path a is the shortest and the cross-sectional area of the space 28 is the narrowest, whereas the path length of the ventilation path d is the longest and the cross-sectional area of the space 25 is the widest. Due to the trade-off relationship, the ventilation resistances of the ventilation paths a to d are equal. As a result, the harmful gases in the areas A to D are sucked evenly.

  FIG. 10 is an operation explanatory diagram of the second rectification mechanism 41. The harmful gas is evenly guided to the wind box opening 33 by the first rectifying mechanism 21. For convenience of explanation, the wind box opening 33 is divided into areas E to I. In practice, the areas E to I are continuous with each other and are not clearly divided.

  The harmful gas in the area E is guided to the exhaust duct 51 through the ventilation path e passing through the space 46. The harmful gas in the area F is guided to the exhaust duct 51 through the ventilation path f passing through the space 47. The harmful gas in the area G is guided to the exhaust duct 51 through the ventilation path g passing through the space 48. The harmful gas in the area H is guided to the exhaust duct 51 through the ventilation path h passing through the space 49. The harmful gas in the area I is guided to the exhaust duct 51 through the ventilation path i passing through the space 50.

  At this time, the ventilation resistance increases as the ventilation path length increases, and the ventilation resistance decreases as the ventilation cross-sectional area increases. In the present embodiment, the path length of the ventilation path e is the shortest and the cross-sectional area of the space 46 is the narrowest, whereas the path length of the ventilation path i is the longest and the cross-sectional area of the space 50 is the widest. Due to the trade-off relationship, the ventilation resistances of the ventilation paths e to i are equal. As a result, the harmful gases in the areas E to I are sucked and guided equally to the exhaust duct 51.

  The operation of the main suction port 13 has been described above, but the sub suction port 34 may be used as an auxiliary.

  The sub suction port 34 is provided with a slide door 36. When there is no problem only by the operation of the main suction port 13, the slide door 36 is closed. Formaldehyde is heavier than air but volatile, so it may diffuse upward. Further, in the case of a harmful gas that is lighter than air, downward suction by the main suction port 13 may be insufficient. Depending on the situation, the slide door 36 is opened, and the gas on the first support plate 11 is guided by side suction from the sub suction port 34.

  The harmful gas sucked by the sub suction port 34 passes through the space partitioned by the partition plate 37 and is sucked and guided to the exhaust duct 51.

  The slide door 36 includes a slide door 36 a provided at a position close to the exhaust duct 51 and a slide door 36 b provided at a position far from the exhaust duct 51. When the opening / closing amount of the sliding door 36b is increased more than the sliding door 36a, the ventilation resistance becomes uniform due to the trade-off relationship, and the same operation as the rectifying mechanism is performed.

・ Cleaning operation (normal)
Formalin may adhere to the surface of the first support plate 11 during the cutting operation, and after completion of the operation, the first support plate 11 is washed. Water is supplied to the first support plate 11 from a water tap 61 provided on the side of the first support plate 11. Water is diffused over the entire surface of the first support plate 11 with a brush or the like, and dirt is cleaned by rubbing with the brush or the like.

  At this time, the taper 8 prevents water from spilling out of the first support plate 11.

  The water on the first support plate 11 falls through the vent hole 12, further falls through the water passage hole 72 of the second support plate 71, and is guided to the sink 81. The sink 81 has a taper 82 and collects water in a drain trap 86 and drains it.

  As described above, after the cutting operation is finished, the surface of the first support plate 11 can be easily cleaned.

・ Cleaning operation (timed)
As described above, the normal cleaning operation may be performed only on the surface of the first support plate 11. However, the waste water after washing also contains dirt, and the inside of the housing 1 becomes dirty over time as normal use is repeated several times. In particular, if dirt is deposited on and adheres to the first rectifying mechanism 21, it becomes a ventilation resistance and inhibits the function of the first rectifying mechanism 21.

  Therefore, the first support plate 11 is removed at a once-in-use ratio, and the degree of contamination of the first rectifying mechanism 21 is confirmed from the opening. The first rectifying mechanism 21 is transparent or translucent, and the degree of contamination can be confirmed visually. If it judges that it is not dirty, the 1st support plate 11 will be rearranged in a predetermined position again. If it judges that it is dirty, the 1st rectification | straightening mechanism 21 will be taken out from the inside of the housing | casing 1, and it wash | cleans separately. The first rectifying mechanism 21 is merely placed on the second support plate 71 and can be easily removed.

  Further, the second support plate 71 can be easily removed, and the second support plate 71 and the sink 81 are also cleaned appropriately.

~effect~
First, the effect of the suction table will be described. When the specimen organ was cut out without using the suction table, the formaldehyde concentration in the room was around 0.5 ppm, and the concentration exceeding 1.0 ppm was measured particularly at the peak.

  When cutting out using a suction table, the formaldehyde concentration in the room is 0.02 to 0.08 ppm, and in particular, the formaldehyde concentration at the 300 mm position just above the side plate is around 0.03 ppm, and the management standard value is 0.1 ppm. Below. That is, a sufficient suction effect was confirmed.

  Next, the effect by each structure is demonstrated.

  The effect of the first rectifying mechanism 21 will be described. Without the first rectifying mechanism 21, the gas on the first support plate 11 cannot be sucked evenly. That is, the ventilation path length corresponding to area A is short, and the ventilation path length corresponding to area D is long. Ventilation resistance increases as the path length increases. The suction force in area A is large, and the suction force in area D is small. Thus, the gas on the 1st support plate 11 cannot be attracted | sucked equally. In the present embodiment, the first rectifying mechanism 21 can uniformly suck the harmful gases in the areas A to D.

  The effect of the second rectifying mechanism 41 will be described. When there is no second rectifying mechanism 41, the gas in the wind box 31 cannot be sucked evenly. That is, the ventilation path length corresponding to the area E close to the exhaust duct 51 is short, and the ventilation path length corresponding to the area I far from the exhaust duct 51 is long. Ventilation resistance increases as the path length increases. The suction force in area E is large, and the suction force in area I is small. Thus, the gas in the wind box 31 cannot be sucked evenly. In the present embodiment, the second rectifying mechanism 41 can uniformly suck the harmful gases in the areas E to I.

  The effect of the sub suction port 34 will be described. By using the sub suction port 34, it is possible to cope with the case where the downward suction by the main suction port 13 is insufficient. By adjusting the opening / closing amount of the slide doors 36a and 36b, the effect can be expected in the same manner as the rectifying mechanism.

  The effects of the water tap 61, the second support plate 71, the sink 81, and the drain trap 86 will be described. When these structures are not provided, it takes time and effort to remove the first support plate 11 and clean it in another place for each cutting operation. With these configurations, the first support plate 11 can be easily washed in a state where the first support plate 11 is normally installed.

  The first support plate 11 and the first rectifying mechanism 21 can be easily removed, and the first rectifying mechanism 21 is transparent or translucent, so that it is possible to cope with dirt inside the housing 1 over time.

  The effect of the taper 8 will be described. Since there is no protrusion or the like, the taper 8 does not hinder the cutting operation. On the other hand, during the cleaning operation, the taper 8 prevents water from spilling out of the first support plate 11.

~ Modification ~
The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the technical idea. For example, although the above embodiment has various configurations, the suction effect can be obtained with only a minimum configuration.

  FIG. 11 is an overall perspective view of a modified example. The modified example is a suction table composed of the housing 1, a table top surface 11 provided with a large number of ventilation holes 12 (only part of which are shown) forming the main suction port 13, and a position directly below the table top surface 11. The rectifying mechanism 21 that is provided in the internal space of the casing 1 and guides the harmful gas on the table top surface 11 by suction, and the exhaust duct 51 that communicates with the leeward side of the rectifying mechanism 21 and can be connected to the external exhaust fan 52. Is provided.

  The suction table is placed on a general table. When the sample organ fixed by the volatile drug is cut out while the exhaust fan 52 is operated, harmful gas generated from the sample organ is evenly sucked downward and exhausted from the exhaust duct 51. Thereby, diffusion of harmful gas can be suppressed.

  It is good also as a suction table by attaching the leg 2 to a suction stand.

DESCRIPTION OF SYMBOLS 1 Case 2 Leg 6 Locking plate 7 Outer edge part 8 Taper 9 Positioning stopper 11 1st support plate 12 Ventilation hole 13 Main suction port 14 Locking part 15 Rotating handle 21 1st rectifying mechanism 22-24 Flat plate 25-28 Space 31 Wind box 32 Upper side part 33 Lower side part (opening)
34 Sub suction port 36 Sliding door 37 Partition plate 41 Second rectifying mechanism 42 to 45 Flat plate 46 to 50 Space 51 Exhaust duct 52 Ventilator 53 Damper 54 Measuring port 61 Water supply tap 71 Second support plate 72 Water passage hole 73 Leg portion 81 Sink 82 Taper 86 Drain trap

Claims (9)

A suction table for sucking gas generated from a part when placing the part using a volatile chemical,
A first support plate on which a plurality of air holes forming a main suction port are provided on the entire surface, and on which the part is placed;
A first rectification mechanism that is provided in a space directly below the first support plate, and guides the gas on the first support plate to be sucked downward;
An air box communicating with the leeward side of the first rectifying mechanism;
A second rectification mechanism provided in the wind box and sucking and guiding the gas in the wind box;
An exhaust duct that communicates with the leeward side of the second rectification mechanism and that can be connected to an external exhaust fan ;
The first rectification mechanism includes:
It has a plurality of flat plates with different lengths in the ventilation direction,
Align the leeward side end faces of the plurality of flat plates,
Long plate down, short plate up, in order of length, and
Arranged so that the dimension between the plates becomes narrower from the bottom to the top
A suction table characterized by being configured . A suction table for sucking gas generated from a part when placing the part using a volatile chemical,
A first support plate on which a plurality of air holes forming a main suction port are provided on the entire surface, and on which the part is placed;
A first rectification mechanism that is provided in a space directly below the first support plate, and guides the gas on the first support plate to be sucked downward;
An air box communicating with the leeward side of the first rectifying mechanism;
A second rectification mechanism provided in the wind box and sucking and guiding the gas in the wind box;
An exhaust duct that communicates with the leeward side of the second rectification mechanism and that can be connected to an external exhaust fan ;
The second rectification mechanism includes:
It has a plurality of flat plates with different lengths in the ventilation direction,
Align the leeward side end faces of the plurality of flat plates,
When guiding the suction upward by the exhaust duct, the short flat plate is downward, the long flat plate is upward, and in order of length, and
Arrange so that the dimension between the flat plates widens from the bottom to the top
A suction table characterized by being configured . The side surface of the wind box communicating with the leeward side of the first rectifying mechanism has a wind box upper side surface portion located above the first support plate,
A sub-suction port for suctioning the gas on the first support plate to the side of the upper side of the wind box;
Inside the wind box according to claim 1 or claim 2, wherein the suction table, characterized in that it comprises a partition plate partitioning the gas from the gas and the sub suction port from the main suction opening. The suction table according to claim 3 , wherein the sub suction port has a sliding door type air volume adjustment mechanism. A water supply mechanism provided beside the first support plate and supplying water to the first support plate;
A flat plate provided with a large number of water passage holes on its entire surface, a second support plate for supporting the first rectifying mechanism from below;
A sink provided immediately below the second support plate and having a taper that becomes lower toward the deepest part;
Claim 1 or claim 2, wherein the suction table and further comprising a drain trap in communication with the deepest of the sink. The first support plate is detachable;
The suction table according to claim 5 , wherein the first rectifying mechanism is made of a transparent or translucent material. The outer edge of the first support plate is locked to the upper wall of the pool structure.
該筺body upper suction table according to claim 6, wherein you characterized by having a taper that decreases toward the first support plate. A suction table for sucking gas generated from a part when placing the part using a volatile chemical,
A table top surface provided with a large number of ventilation holes to form a main suction port;
A rectifying mechanism that is provided in a table internal space immediately below the table top surface, and guides the gas on the table top surface to be sucked downward;
An exhaust duct that communicates with the leeward side of the rectifying mechanism and that can be connected to an external exhaust fan ;
The rectifying mechanism is
It has a plurality of flat plates with different lengths in the ventilation direction,
Align the leeward side end faces of the plurality of flat plates,
Long plate down, short plate up, in order of length, and
Arranged so that the dimension between the plates becomes narrower from the bottom to the top
A suction table characterized by being configured . When placing a site using a volatile drug, a suction table for sucking gas generated from the site,
A table top surface provided with a large number of vent holes forming the main suction port,
A rectifying mechanism that is provided in an internal space directly below the table top surface, and that induces the suction of the gas on the table top surface downward;
An exhaust duct that communicates with the leeward side of the rectifying mechanism and that can be connected to an external exhaust fan ;
The rectifying mechanism is
It has a plurality of flat plates with different lengths in the ventilation direction,
Align the leeward side end faces of the plurality of flat plates,
Long plate down, short plate up, in order of length, and
Arranged so that the dimension between the plates becomes narrower from the bottom to the top
A suction stand characterized by being configured .