WO2015114831A1 - 計量システム - Google Patents
計量システム Download PDFInfo
- Publication number
- WO2015114831A1 WO2015114831A1 PCT/JP2014/052443 JP2014052443W WO2015114831A1 WO 2015114831 A1 WO2015114831 A1 WO 2015114831A1 JP 2014052443 W JP2014052443 W JP 2014052443W WO 2015114831 A1 WO2015114831 A1 WO 2015114831A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air
- work space
- containment device
- temperature
- weighing
- Prior art date
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- 238000005303 weighing Methods 0.000 title claims abstract description 43
- 239000000843 powder Substances 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2285—Details of probe structures
- G01N2001/2288—Filter arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
- G01N2001/245—Fans
Definitions
- the present invention relates to a weighing system in which a weighing device such as a balance is arranged, and particularly to a weighing system for weighing dangerous and minute powder.
- the mass concentration measurement of PM2.5 is obtained by attaching a filter to a specified collection device installed in the atmosphere and weighing the particulate matter collected on this filter.
- the measurement environment is a temperature of 21.5 ⁇ 1.5 ° C., a humidity of 35 ⁇ 5%, and the accuracy of the balance is ⁇
- the standard is strictly limited to 1 ⁇ g. Therefore, the space where the balance is installed must be controlled so that the temperature and humidity are within the standard.
- FIG. 9 is a schematic view of a balance chamber that achieves constant temperature and humidity, which is conventionally used when measuring dangerous powder such as PM2.5.
- Reference numeral 1 denotes a temperature / humidity control device main body
- reference numeral 2 denotes a temperature / humidity control device indoor unit
- reference numeral 3 denotes a work space
- reference numeral 4 denotes a heat-insulating chamber covering the balance chamber
- reference numeral 5 denotes a balance.
- the arrows indicate the air flow.
- the balance chamber is insulated, and the air temperature controlled by the temperature and humidity control devices 1 and 2 is blown to make the work space 3 uniform, and the weighing is performed.
- this environment creation has a problem that the measured value of the balance 5 becomes unstable due to strong air blowing to stir indoor air large enough for a person to enter, in addition to large capital investment.
- a further problem is that dangerous powder rolls up by blowing air and diffuses into the work space 3 to expose the operator.
- a dangerous substance is contained in a sealed space, and a glove box (for example, Patent Document 1) that performs work through a glove or a work space is forcibly exhausted to remove dangerous substances.
- a draft chamber for example, Patent Document 2 that forcibly sucks and prevents external outflow.
- the glove box has a problem that the work freedom is low because it forms a sealed space, and it is used only in situations where dangerous viruses are operated.
- the draft chamber is equipped with a mechanism for sucking and exhausting hazardous substances in the work space.
- the draft chamber does not guarantee the function of containing particulate hazardous substances that are powdered, only by specifying a strong exhaust capacity.
- an exhaust pipe connected to the line is necessary, and initial investment is difficult, and it is difficult to newly install it at an arbitrary place.
- the draft chamber is forcibly evacuated, the airflow in the chamber is intense, and it is often difficult to determine the measured value when a balance is installed. This is a problem that cannot be ignored even when a high-precision balance is installed.
- the present invention has been made to solve the above-described problems of the prior art, and provides a measuring system that can easily and safely measure dangerous and minute powders stably and safely.
- a weighing system includes a work space in which a weighing device can be installed, an open portion provided in front of the work space, an air inlet and an air outlet set in the work space.
- a containment device that closes the other parts except for, and defines a work space; a temperature and humidity control device that controls the temperature and humidity of the sucked air and blows the air to the work space;
- a first connecting means for connecting the dust filter unit, the temperature / humidity control device and the air inlet of the containment device in a sealed state; and an air outlet for connecting the filter unit and the filter unit in a sealed state.
- a third connection means for connecting the filter unit and the temperature / humidity control device in a sealed state.
- the temperature and humidity controlled air sent out from the temperature and humidity control device is guided to the containment device via the first connection means.
- air flows into the work space from an air inlet set in the containment device, and is discharged from an air outlet set in the containment device.
- a designed air flow is generated in the working space, and a negative pressure is generated relative to the outside of the containment device, which is the only open space in the weighing system, as viewed from the outside.
- the air that has flowed into the work space is guided to the filter unit through the second connecting means together with the outside air that has flowed into the work space from the opening provided on the front surface of the containment device. Then, the air that has passed through the filter in the filter unit returns to the temperature and humidity control device via the third connection means.
- temperature-humidity-controlled air circulates in the temperature-humidity control device, containment device, and filter unit, passes only through this limited space, and controls the temperature and humidity in the containment device, thus reducing the air flow rate. Can be made. Thereby, the air volume in the work space is weakened, and the measured value of the installed balance is stabilized.
- the closed space of this measuring system is completed with a temperature / humidity control device, a containment device, and a filter unit, so that the device can be made compact and no expansion work beyond this facility is required.
- the temperature / humidity control device, the containment device, and the filter unit are separate units and are connected to each other, the system can be easily installed, moved, and retrofitted.
- the air inlet of the containment device is provided on an upper surface of the containment device, and the air outlet is provided on either the left or right side of the containment device.
- This configuration causes a downward flow from the upper side to the lower side in the work space, improving the flow rate controllability and air agitation around the measuring device.
- an upper horizontal baffle for controlling a flow of air is provided at a position above the work space.
- the vent hole is formed at a position excluding a region below the air inlet of the containment device.
- the air at a relatively strong wind speed blown out from the air inlet reliably hits the upper horizontal baffle and flows after being weakened, so that the measurement value can be further stabilized.
- FIG. 1 is a right perspective view of a weighing system according to the present invention.
- the weighing system 10 includes a temperature / humidity control device 11, a filter unit 12, a containment device 13 having a work space 3, a first duct 14, a second duct 15, and a third duct 16. .
- the containment device 13 is installed on a work table that is not a component of the weighing system 10.
- the working space 3 has a measurement value reading accuracy (minimum display) of 1 ⁇ g (0.001 mg), which is suitable for weighing dangerous powder such as PM2.5, which is not a component of the weighing system 10.
- a balance 5 is installed.
- the temperature / humidity control device 11 is used to achieve a set temperature and humidity for the work space 3.
- the temperature / humidity control device 11 has an inlet 112 and an outlet 113.
- the housing has a cooler, a heater, and a humidifier, and the flow rate of air that is temperature-humidity-controlled toward the outer end of the discharge port 113 can be controlled at the inner end of the discharge port 113.
- a blower fan 18 is disposed. Then, the temperature and humidity environment of the work space 3 is detected by a temperature and humidity sensor installed in the work space 3, and the temperature and humidity of the air taken in from the suction port 112 is adjusted to the set temperature and humidity by, for example, PID control.
- the filter unit 12 is used to remove dangerous powder from the air discharged from the work space 3.
- the filter unit 12 has a suction vent 122 and a discharge vent 123, and a single or a plurality of filters capable of collecting powder are built in the housing.
- the filter can be a HEPA filter (High Efficiency Particulate Air Filter) or a ULPA filter (Ultra Low Penetration Air Filter) is preferably used.
- the HEPA filter is defined by JIS Z8122 as “an air filter having a trapping efficiency of 99.97% or more for particles of 0.3 ⁇ m at the rated airflow and an initial pressure loss of 245 Pa or less”. It is what.
- the ULPA filter is, according to the same rule, “an air filter having a particle collection rate of 99.9995% or more with respect to particles having a rated air volume of 0.15 ⁇ m and an initial pressure loss of 245 Pa or less”. It is prescribed.
- the filter unit 12 has a structure that can be safely exchanged without directly touching a contaminated filter, which is called a bug-in-bug-out method.
- the filter unit 12 can be controlled separately from the blower fan 18 of the temperature / humidity control device 11, and can be controlled by a suction fan (second blower). It is preferable to additionally provide a fan) at a downstream position of the filter in the air flow path.
- the filter unit 12 is provided with a second blower fan, sucking air with the blower force of the second blower fan, and forcibly passing the filter through the filter, the flow rate of the powder collected by the filter is changed to air. Can be optimally controlled as the amount of inflow and outflow. Further, by controlling the second blower fan, the flow rate of the work space 3 can be adjusted, and the optimum flow rate at which powder scattering to the outside of the work space 3 does not occur can be achieved.
- 1st duct (1st connection means) 14 is used in order to connect the discharge port 113 of the temperature / humidity control apparatus 11 and the air inlet 132 (after-mentioned) of the containment apparatus 13 in the airtight state.
- the second duct (second connecting means) 15 is used to connect an air outlet 133 (described later) of the containment device 13 and the suction vent 122 of the filter unit 12 in a sealed state.
- the third duct (third connecting means) 16 is used to connect the exhaust vent 123 of the filter unit 12 and the inlet 112 of the temperature / humidity control device 11 in a sealed state.
- the first duct 14, the second duct 15, and the third duct 16 are formed of bellows type cylinders that can be expanded and contracted and bent.
- FIG. 2 is a front view of the containment device
- FIG. 3 is a plan view of the containment device
- FIG. 4 is a left side view of the containment device
- FIG. 5 is a longitudinal sectional view of the containment device (cross-sectional view taken along line VV in FIG. 2). It is.
- a broken line portion in the figure is a member or a member thickness which can be seen through since the apparatus is transparent.
- the containment device 13 can be installed in the work space 3 with a weighing device such as a balance 5 (indicated by a broken line) or a viscometer, and is used for containment to prevent the measurement object from flowing out of the work space 3. Is done.
- a weighing device such as a balance 5 (indicated by a broken line) or a viscometer
- the containment device 13 defines the work space 3 by a front surface 13f, a back surface 13b, a left side surface 13l, a right side surface 13r, an upper surface 13u, and a floor surface 13d. Other portions except for the opening 134 provided on the front surface 13f, the air inlet 132 provided on the upper surface 13u, and the air outlet 133 provided on the left side surface 131 are closed by adhesion.
- a temperature and humidity sensor for grasping the temperature and humidity of the space is installed at an arbitrary location.
- the containment device 13 is preferably formed of a transparent resin for all components except the floor surface 13d described below.
- all the components are made of acrylic resin, so that the contamination state can be confirmed at a glance.
- the back surface 13b and the floor surface 13d of the containment device 13 are a single plate made of the aforementioned resin.
- the upper surface 13u of the containment device 13 is integrally formed with a single plate made of the above-described resin and a conical cylinder-shaped air inlet 132 in the central portion on the rear side of the device.
- the front side portion 13uf of the upper surface 13u is bent toward the downward slant.
- a single plate made of the above-described resin is divided into an upper part 13fu and a lower part 13fd, and an open part 134 is formed between the upper part 13fu and the lower part 13fd. Since the containment device 13 has the opening portion 134 on the front surface 13f of the work space 3 on the side where the operator operates, the weighing work can be easily performed.
- the open part 134 is preferably formed so as to occupy an area of approximately one third of the total area of the front surface 13f from the viewpoint of ensuring workability and preventing the outflow of air to the outside.
- the upper part 13fu is fixed as an openable / closable door to the upper front side part 13uf by a hinge.
- the upper portion 13fu is fixed to the upper surface 13u so as to be inclined forward by about 30 ° from the vertical direction of the device.
- An open portion side end portion 13fuE of the upper portion 13fu is smoothly bent toward the inside of the apparatus and subjected to R processing.
- the lower part 13fd is also fixed to the floor surface 13d so as to be inclined forward by about 30 ° from the vertical direction of the apparatus.
- the open portion side end portion 13fdE of the lower portion 13fd is also smoothly bent toward the inside of the apparatus and is subjected to R processing.
- the left side surface 13l of the containment device 13 is a single plate made of the above-described resin, and is positioned at a position that is substantially central in the longitudinal direction of the device and below the upper portion 13fu (opening door) of the front surface 13f in the vertical direction of the device.
- a rectangular opening 135 for attaching the outlet 133 is formed. Screw holes are respectively formed in the corners of the opening 135.
- the air outlet 133 is integrally formed in a cylindrical shape on a resin inlet plate 136 that is formed to be slightly larger than the opening 135.
- the inlet plate 136 is also formed with a screw hole at a position coinciding with that of the corner portion, and the opening 135 is covered with the inlet plate 136 from the outside of the apparatus, and is screwed from the outside of the apparatus to be closed. ing.
- a cable opening 137 is formed on the left side surface 13l below the apparatus rear side.
- the cable opening 137 is an opening through which a telecommunication cable necessary for the weighing device is taken out of the containment device 13.
- a cable lid 138 covering the cable opening 137 is screwed to the inside of the apparatus so as to be rotatable.
- the cable opening 137 is closed by a cable lid 138 inside the apparatus.
- a front baffle 20L extending in the vertical direction of the apparatus along the open part 134 is attached to the open part side end part 13lE of the left side surface 13l.
- the front baffle 20L is a resin plate that is provided to control the air flow and has a smooth bent portion in the short-side direction.
- the front baffle 20L has one surface contacting the inside of the left side surface 13l and screwed from the outside of the left side surface 13l with respect to the opening portion side end portion 13lE, and the other surface from the opening portion side end portion 13lE. It is fixed to extend in the left direction.
- the open end side end 13lE of the left side surface 13l is subjected to R processing.
- the right side 13r of the containment device 13 has the same structure as the left side 13l, and has an opening 135, a cable opening 137, and a cable lid 138. That is, the inlet plate 136 in which the air outlet 133 is formed is provided on both the left side surface 13l and the right side surface 13. In the present embodiment, the opening 135 of the right side surface 13r that is not used is closed by a closed plate instead of the suction port plate 136.
- a front baffle 20R having the same shape and shape extending from the inside of the right side surface 13r to the right side of the device is also attached to the open side end portion 13rE of the right side surface 13r. The open portion side end portion 13rE is subjected to R processing.
- FIG. 6 is a perspective view of the upper baffle.
- the upper horizontal baffle 30 is a single plate made of the above-mentioned resin, which is provided for controlling the flow of air and whose dimensions are approximately matched with the upper surface 13u of the apparatus.
- the left and right end portions of the upper horizontal baffle 30 are bent vertically and upward from the baffle extending surface to form an attachment portion 31.
- the attachment portion 31 has screw holes at a plurality of equally spaced locations. Screw holes are formed in the left side surface 13l and the right side surface 13r at a height position substantially the same as the fixed position height of the upper portion 13fu at a position that coincides with that of the attachment portion 31, and the upper horizontal baffle 30 is Screwed from the outside of the apparatus, it is fixed horizontally above the work space 3.
- the upper horizontal baffle 30 has a plurality of vent holes 32 formed in the device front area 30f.
- Each of the vent holes 32 is formed in an elongated rectangular shape having a rounded shape with no corners, and has a total of four rows in the device front region 30f, two rows in the left-right direction of the device and two rows in the front-back direction. Are formed at equal intervals.
- FIG. 7 is a schematic diagram of the air flow in the front view of the containment device
- FIG. 8 is a schematic diagram of the air flow in the right side view of the containment device.
- the arrows in the figure represent the air flow.
- the contaminated air passing through the work space 3 is discharged from the air outlet 133 together with the outside air flowing into the work space 3 from the open part 134, and is filtered from the suction vent 122 through the second duct 15. Guided to unit 12.
- the air from which the powder is collected and removed by passing through the filter in the filter unit 12 is sent out from the discharge vent 123 and is passed through the third duct 16 from the inlet 112 to the temperature / humidity controller 11. Return to.
- the returned air is controlled to the set temperature and humidity and is returned to the work space 3 again.
- the air flowing in from the open part 134 is introduced into the work space 3 as a laminar flow without being turbulent because all the surfaces around the open part 134 are R-processed without corners.
- the air that has entered the work space 3 from the air inlet 132 has a relatively strong wind speed, but it reliably hits the device rear area 30b of the upper horizontal baffle 30 that is the lower area of the air inlet 132, and the wind speed can be reduced. . Then, along the upper surface of the upper horizontal baffle 30, it flows through the work space 3 as a downflow of light wind downward from the vent hole 32 in the front area 30 f of the apparatus.
- the air flow path controlled in temperature and humidity in the work space 3 becomes a laminar flow with respect to the balance 5, so that the measurement value of the balance 5 is stabilized.
- the measuring system 10 has an air flow rate of 6 [m 3] in the working space 3 by the above-described flow path design and a configuration in which only the limited space of the temperature / humidity control device 11, the containment device 13, and the filter unit 12 is circulated. / min].
- the weighing system 10 since the weighing system 10 has the flow path design of down flow, the flow rate controllability and air agitation around the balance 5 are improved. That is, a configuration in which the air outlet 133 is provided on the upper surface 13u of the containment device 13 and the work space 3 is made up-flow is conceivable. In view of stable metering, the air flow at the stage where the wind speed is strong hits a lot and the flow rate is difficult to control, and the downflow is better in the work space 3 than the upflow. Therefore, the down flow is preferable.
- the dangerous powder floating in the work space 3 due to the weighing work remains in the containment device 13, the second duct 15, and the filter unit 12, and is contained in the weighing system 10. At this time, air is not circulated to the outside of the metering system 10, but is circulated in the metering system 10, and the outside air is actively introduced from the open part 134, so that the containment is ensured. It has become.
- the final contamination area remains in the second duct 15 and the filter unit 12. Therefore, after the operation of the system is stopped, the second duct 15 and the filter unit 12 are integrated. If it is replaced, the exposure of the worker at the time of replacement can be reduced.
- the weighing system 10 is extremely small as compared with a balance chamber or the like.
- expansion work such as newly installing an exhaust pipe is not required for installing the device.
- the weighing system 10 includes a temperature / humidity control device 11, a containment device 13, and a filter unit 12 as separate units, which are connected by ducts 14, 15, and 16. These can be arranged flexibly, and the system can be easily installed, moved and retrofitted, and the degree of freedom of installation is high.
- FIG. 2 Right perspective view of a weighing system according to the present invention
- Front view of containment device Top view of containment device
- Left side view of containment device Longitudinal sectional view of the containment device (cross sectional view along line VV shown in FIG. 2)
- Perspective view of upper baffle Schematic diagram of air flow in front view of containment device
- Schematic diagram of air flow in right side view of containment device The figure explaining the conventional balance room
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Abstract
Description
図1は本発明に係る計量システムの右方斜視図である。
計量システム10は、温湿度制御装置11と、フィルタユニット12と、作業空間3を有する封じ込め装置13と、第1のダクト14と、第2のダクト15と、第3のダクト16と、を有する。封じ込め装置13は、本計量システム10の構成要素でない作業台の上に設置されている。作業空間3には、本計量システム10の構成要素でない、PM2.5などの危険な粉体を計量するのに適した、計量値の読み取り精度(最小表示)が1μg(0.001mg)となる天秤5が設置されている。
Low Penetration Air Filter)を用いるのが好ましい。HEPAフィルタは、JIS Z8122によって、「定格風量において0.3μmの粒子に対して99.97%以上の捕集効率をもち、かつ初期圧力損失が245Pa以下の性能を有するエアフィルタ」と規定されているものである。ULPAフィルタは、同規定により、「定格風量で粒径が0.15μmの粒子に対して99.9995%以上の粒子捕集率をもち、かつ初期圧力損失が245Pa以下の性能を持つエアフィルタ」と規定されているものである。フィルタユニット12は、バグインバグアウト方式と呼ばれる、汚染されたフィルタに直接触れることのない安全な交換が可能な構造となっている。
10 計量システム
11 温湿度制御装置
112 吸入口
113 排出口
12 フィルタユニット
122 吸入通気口
123 排出通気口
13 封じ込め装置
13f 前面
13l 左側面
13r 右側面
13u 上面
132 エアー入口
133 エアー出口
134 開放部
14 第1のダクト(第1の接続手段)
15 第2のダクト(第2の接続手段)
16 第3のダクト(第3の接続手段)
18 送風ファン
20L、20R 前方バッフル
30 上方水平バッフル
32 通気孔
Claims (4)
- 計量装置が設置可能な作業空間と、
前記作業空間の前面に設けた開放部と、前記作業空間に設定したエアー入口及びエアー出口と、を除く他の部分を閉塞して作業空間を画成する封じ込め装置と、
吸入した空気の温度と湿度を制御し、該空気を作業空間へ送風可能な温湿度制御装置と、
粉体を集塵するフィルタユニットと、
前記温湿度制御装置と前記封じ込め装置のエアー入口とを密閉状態で接続する第1の接続手段と、前記封じ込め装置のエアー出口と前記フィルタユニットとを密閉状態で接続する第2の接続手段と、前記フィルタユニットと前記温湿度制御装置とを密閉状態で接続する第3の接続手段と、
を備えることを特徴とする計量システム。 - 前記封じ込め装置の前記エアー入口は、封じ込め装置の上面に設けられ、前記エアー出口は、前記封じ込め装置の左右いずれかの側面に設けられることを特徴とする請求項1に記載の計量システム。
- 前記作業空間の上方位置には、通気孔を備え、空気の流れを制御する上方水平バッフルが設けられることを特徴とする請求項2に記載の計量システム。
- 前記通気孔は、前記封じ込め装置の前記エアー入口の下方域を除く位置に形成されることを特徴とする請求項3に記載の計量システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/052443 WO2015114831A1 (ja) | 2014-02-03 | 2014-02-03 | 計量システム |
US15/116,134 US10067046B2 (en) | 2014-02-03 | 2014-02-03 | Containment workstation for hazardous fine particles |
JP2015559718A JP6278532B2 (ja) | 2014-02-03 | 2014-02-03 | 計量システム |
CN201480062526.0A CN106170680B (zh) | 2014-02-03 | 2014-02-03 | 计量系统 |
KR1020167008051A KR102165033B1 (ko) | 2014-02-03 | 2014-02-03 | 계량 시스템 |
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PCT/JP2014/052443 WO2015114831A1 (ja) | 2014-02-03 | 2014-02-03 | 計量システム |
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US (1) | US10067046B2 (ja) |
JP (1) | JP6278532B2 (ja) |
KR (1) | KR102165033B1 (ja) |
CN (1) | CN106170680B (ja) |
WO (1) | WO2015114831A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107990964A (zh) * | 2017-11-13 | 2018-05-04 | 京华建设科技有限公司 | 一种高效负压式称量罩 |
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CN107036700A (zh) * | 2017-05-25 | 2017-08-11 | 京华建设科技有限公司 | 一种方便更换初效过滤器的称量罩 |
KR102083397B1 (ko) * | 2017-11-17 | 2020-03-02 | 한국지질자원연구원 | 정전기 제거 수단을 구비한 저울 장치 |
KR102270289B1 (ko) * | 2021-04-06 | 2021-06-28 | (주)참트레이딩 | 미립자 계측 시스템 |
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JP2006122816A (ja) * | 2004-10-28 | 2006-05-18 | Mita Rika Kogyo Kk | 安全キャビネット |
JP2009030857A (ja) * | 2007-07-26 | 2009-02-12 | Panasonic Corp | ファンフィルターユニット |
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JPS5647741A (en) | 1979-09-28 | 1981-04-30 | Hitachi Ltd | Decoupling device for nuclear magnetic resonating device |
WO1992013806A1 (en) * | 1991-01-31 | 1992-08-20 | Adi Limited | Improvements in fermentation apparatus |
JPH06233941A (ja) * | 1993-02-10 | 1994-08-23 | Daruton:Kk | ドラフトチャンバ |
JP2004090174A (ja) | 2002-08-30 | 2004-03-25 | Ishikawajima Harima Heavy Ind Co Ltd | グローブボックス |
JP4532087B2 (ja) | 2003-08-29 | 2010-08-25 | オリエンタル技研工業株式会社 | ヒュームフード |
JP2006074268A (ja) | 2004-08-31 | 2006-03-16 | Sanyo Electric Co Ltd | 地上波デジタルtv放送の受信システム |
JP2006112816A (ja) * | 2004-10-12 | 2006-04-27 | Fujitsu Ltd | 位置測定制御方法 |
JP4942390B2 (ja) * | 2006-05-02 | 2012-05-30 | 株式会社エー・アンド・デイ | 電子天秤の荷重計測機構 |
US20080173362A1 (en) * | 2007-01-19 | 2008-07-24 | Wong Albert C | Hydraulic reservoir with baffle |
JP5062879B2 (ja) * | 2007-02-23 | 2012-10-31 | 株式会社エー・アンド・デイ | 秤量装置用風防 |
JP5062880B2 (ja) * | 2007-03-05 | 2012-10-31 | 株式会社エー・アンド・デイ | 秤量装置用着脱型風防 |
DE102011000085B4 (de) * | 2011-01-11 | 2018-12-13 | Sartorius Lab Instruments Gmbh & Co. Kg | Arbeitskabine mit integrierter Waage |
JP5666930B2 (ja) * | 2011-01-28 | 2015-02-12 | 株式会社エー・アンド・デイ | 計量装置 |
JP5472169B2 (ja) * | 2011-03-16 | 2014-04-16 | 東京エレクトロン株式会社 | 液処理装置、液処理方法および記憶媒体 |
DE102011111949B4 (de) * | 2011-08-29 | 2013-05-29 | Thermo Electron Led Gmbh | Laborabzug und insbesondere Sicherheitswerkbank mit Projektionsvorrichtung |
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2014
- 2014-02-03 WO PCT/JP2014/052443 patent/WO2015114831A1/ja active Application Filing
- 2014-02-03 US US15/116,134 patent/US10067046B2/en not_active Expired - Fee Related
- 2014-02-03 KR KR1020167008051A patent/KR102165033B1/ko active IP Right Grant
- 2014-02-03 CN CN201480062526.0A patent/CN106170680B/zh not_active Expired - Fee Related
- 2014-02-03 JP JP2015559718A patent/JP6278532B2/ja not_active Expired - Fee Related
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JPS5647741U (ja) * | 1979-09-19 | 1981-04-28 | ||
JP2006122816A (ja) * | 2004-10-28 | 2006-05-18 | Mita Rika Kogyo Kk | 安全キャビネット |
JP2009030857A (ja) * | 2007-07-26 | 2009-02-12 | Panasonic Corp | ファンフィルターユニット |
Cited By (1)
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CN107990964A (zh) * | 2017-11-13 | 2018-05-04 | 京华建设科技有限公司 | 一种高效负压式称量罩 |
Also Published As
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CN106170680B (zh) | 2019-04-23 |
JP6278532B2 (ja) | 2018-02-21 |
KR102165033B1 (ko) | 2020-10-13 |
US10067046B2 (en) | 2018-09-04 |
JPWO2015114831A1 (ja) | 2017-03-23 |
KR20160117408A (ko) | 2016-10-10 |
US20170219474A1 (en) | 2017-08-03 |
CN106170680A (zh) | 2016-11-30 |
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