KR101676328B1 - Marine gas sampling device having the air tightness - Google Patents

Marine gas sampling device having the air tightness Download PDF

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Publication number
KR101676328B1
KR101676328B1 KR1020150191840A KR20150191840A KR101676328B1 KR 101676328 B1 KR101676328 B1 KR 101676328B1 KR 1020150191840 A KR1020150191840 A KR 1020150191840A KR 20150191840 A KR20150191840 A KR 20150191840A KR 101676328 B1 KR101676328 B1 KR 101676328B1
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KR
South Korea
Prior art keywords
gas
cover
screws
nozzle cap
packing
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Application number
KR1020150191840A
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Korean (ko)
Inventor
신정문
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신정문
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Priority to KR1020150191840A priority Critical patent/KR101676328B1/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/22Devices for withdrawing samples in the gaseous state
    • G01N1/2226Sampling from a closed space, e.g. food package, head space
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B9/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/48Arrangements of indicating or measuring devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22Fuels; Explosives
    • G01N33/225Gaseous fuels, e.g. natural gas
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22Fuels; Explosives
    • G01N33/227Explosives, e.g. combustive properties thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The present invention relates to a gas sampling device for a vessel, having airtightness. The device comprises: a connection tube of which an inside is penetrated, installed to be exposed to a deck of a vessel, and connected with a valve to be connected to a tank in the vessel; a gas collector placed in the connection tube, including an inlet taking gas on a side and an outlet discharging the gas on an upper part; a cover connected with the other end of the connection tube to prevent separation of the gas collector, placed in the connection tube, of which the inside is penetrated to be connected to the connection tube; a connection hose of which an end is connected to the outlet of the gas collector by penetrating the other end of the connection tube and the cover, of which the other end is connected to a gas measurement device; an opening and closing valve formed on the connection hose to determine the opening and closing of the connection hose; and a closing nozzle connected and fixated to an upper part of the cover to stably prevent the gas, stored in the tank, from being discharged through a gap between the connection hose and the cover. As the closing nozzles is installed to prevent harmful gas, stored in the tank, from being discharged to the outside through a gap between the cover, connected with the connection tube, and the connection hose, penetrating the cover; the present invention is capable of stably preventing a measurer from getting diseased from the harmful gas by preventing the measurer from being exposed to the harmful gas during a procedure of measuring oxygen concentration or explosive gas in the tank.

Description

Technical Field [0001] The present invention relates to a gas sampling device for a ship having airtightness,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas sampling apparatus for ships having airtightness, and more particularly, to a gas sampling apparatus for airtightness, The gas is sampled by the gas gauge which has airtightness to stably prevent the measurer from suffering from the disease due to the harmful gas because the measurer does not be exposed to the harmful gas during the measurement of the explosive gas or oxygen concentration in the tank, ≪ / RTI >

Among the systems for the safety of ships, the gas sampling system is an essential system for oil tankers, gas lines and chemical wastes, and vessels of the above type that are recently dried must compulsorily adopt a gas sampling system.

This gas sampling system measures the concentration of explosive gas or oxygen in the tank where the flammable liquid is stored and keeps the concentration of explosive gas or oxygen in the tank below a certain level to prevent the risk of explosion.

Therefore, the crews measure the explosive gas and oxygen concentration in the tank from time to time through the gas sampling device.

After the connection tube is connected to the valve communicating with the tank of the ship, the gas collector positioned inside the connection tube is lowered and positioned inside the tank, and the gas collector is connected to the connection hose and descends together with the connection hose .

Then, when the descending of the gas collector is completed, when the gas is sucked through the gas measuring instrument connected to the connecting hose, the gas is sucked through the gas collector, and the gas is supplied to the connecting hose to be finally supplied to the gas collector, The concentration of gas or oxygen is measured.

But. In the conventional gas sampling device, a wide hole is formed inside the connection tube so that the connection hose for raising and lowering the gas collector can be easily transported. Due to such a wide hole, a gap between the connection tube and the connection hose (Hydrogen sulfide, benzene, flammable gas, etc.) remaining in the tank is discharged through the gap between the connecting tube and the connecting hose in the process of measuring the gas concentration. Therefore, the explosive gas and oxygen concentration in the tank are measured The measurer is easily exposed to noxious gas, causing damage to the lungs of the measurer or causing diseases such as cancer in the long term.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve all of the above problems, and an object of the present invention is to provide a hose which is capable of discharging harmful gas contained in a tank to the outside through a cover and a connecting hose penetrating the inside of the cover, A gas sensor is provided for preventing the sensor from being exposed to the harmful gas during the measurement of the explosive gas or oxygen concentration in the tank to prevent the sensor from being diseased by the harmful gas. And a gas sampling device.

In order to accomplish the above object, the present invention provides an airtight gas sampling device for a marine vessel, which is connected to a valve communicating with a tank inside the vessel, one end of which is exposed on a deck of a ship, A gas collector positioned inside the connection tube and having an inlet through which gas is introduced at one side thereof and an outlet through which the introduced gas is discharged at an upper portion thereof and a gas collector connected to the other end of the connection tube, A cover which is connected to the outlet of the gas collector through one end of the cover and the other end of the connection tube and whose other end is connected to the gas meter, A hose, and an on-off valve formed on the connecting hose to determine opening and closing of the connecting hose, A marine gas sampling device comprising:

And a closed nozzle which is connected to the upper portion of the cover to stably shut off the discharge of the gas contained in the tank between the inside of the cover and the connecting hose.

The closed nozzle includes a first female screw thread formed on the inside of the upper portion of the cover, a first male screw thread engaged with the first female thread on a lower outer circumferential surface, A gas tight packing in which an annular step is formed in an inner portion thereof, a gas tight packing which penetrates the inner portion to have a predetermined elasticity, is positioned inside the both screws, and the lower portion is in contact with the step of the both screws, And a nozzle cap having a tapered tightening portion that is sharpened as the upper portion of the inner cap is extended to the upper portion,

When the user tightens the nozzle cap to the both screws, the nozzle cap gradually descends. At this time, the upper portion of the hermetic packing is pressed and contracted in the throttling portion of the nozzle cap, and the inner surface of the hermetic packing passes through the hermetic packing. The outer circumferential surface of the connecting hose is closely contacted to maintain airtightness,

At the same time, the airtight packing is pressed downward on the descending nozzle cap, so that the lower part of the airtight packing and the step of the both screws are firmly brought into close contact with each other so that the airtightness is maintained to stably prevent the gas from being discharged between the cover and the connecting hose .

Further, a pressure body is formed on the hermetic packing, and the upper portion is further divided into a plurality of pieces at equiangular intervals,

When the nozzle cap is lowered by the screws, the upper portion of the pressure body is pressed to guide the upper portion of the hermetic packing to shrink, and the hermetic packing contacts the rotating nozzle cap, So that the hermetic packing is prevented from being deformed or damaged so as to enhance the structural stability of the device.

The cover further includes a ring packing formed between the cover and both screws to induce stable airtightness of the cover and both screws, thereby stably shielding gas from being discharged between the cover and both screws.

In addition, a knurling is formed on the outer circumferential surface of the nozzle cap so that the user can easily fasten the nozzle cap.

As described above, according to the gas sampling apparatus for marine vessels having airtightness according to the present invention, the noxious gas contained in the tank is discharged to the outside through the cover and the connecting hose passing through the inside of the cover, It is possible to stably prevent the measurer from suffering from the disease due to the harmful gas because the measurer does not be exposed to the harmful gas during the measurement of the explosive gas or oxygen concentration in the tank.

1 is a perspective view of a gas sampling apparatus for ships having airtightness according to an embodiment of the present invention;
Fig. 2 is a perspective view of the main part of the gas sampling apparatus for marine vessels having airtightness shown in Fig. 1. Fig.
3 is a use state diagram of the gas sampling apparatus for ships having airtightness shown in Fig.

A gas sampling apparatus for marine vessels having airtightness according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Detailed descriptions of well-known functions and constructions that may be unnecessarily obscured by the gist of the present invention will be omitted.

FIG. 1 is a perspective view of a gas sampling device for a ship having airtightness according to an embodiment of the present invention, and FIG. 2 is a perspective view of a gas sampling device for a ship having an airtightness according to an embodiment of the present invention. Fig. 3 is a view showing the state of use of the gas sampling apparatus for marine vessels having airtightness shown in Fig. 1, respectively.

As shown in the figure, the gas sampling apparatus 100 for a ship having airtightness according to the embodiment of the present invention penetrates the inside of the vessel, and one end of the vessel is exposed to the deck of the vessel, A connecting tube 1 connected to a valve v connected to the connecting tube 1 and an inlet 2a through which gas is introduced into one side of the connecting tube 1 and an outlet 2a through which an inflow gas is discharged (2), which is connected to the other end of the connection tube (1) and which is located inside the connection tube (1), is prevented from being released from the gas collector (2) A cover 3 communicating with the connection tube 1 and one end communicating with the outlet 2b of the gas collector 2 through the other end of the cover 3 and the connection tube 1, a connecting hose 4 connected to the connecting hose 4, In the vessel a gas sampling device including an on-off valve (5) for determining the opening and closing of the internal connection hose (4),

It is possible to reliably block the discharge of the gas contained in the tank t between the inside of the cover 3 and the connection hose 4 by being connected and fixed to the upper part of the cover 3, as shown in FIGS. 1 and 2 And a closed nozzle (10)

The closed nozzle 10 includes a first female thread 11 formed on the inside of the upper portion of the cover 3 and a second female thread 11 formed on the lower outer circumferential surface of the first female thread 11, A first male thread 12a is formed on the outer circumferential surface of the upper shell 12 and a second male thread 12b is formed on the upper outer circumferential surface thereof. Tight seal 13 which is located inside the two screws 12 and whose lower part is in contact with the step 12c of the two screws 12 and a gas tight packing 13 which penetrates the inside thereof, A second female screw thread 14a to be fastened to the second male thread 12b and a nozzle cap 14 having a tapered thrust section 14b which is sharpened as the upper part of the upper part is extended, do.

That is, as shown in FIG. 3A, in order to measure the gas concentration in the tank t using the gas sampling device 100 for a marine vessel having airtightness of the present invention, a valve v When the gas collector 2 located inside the connection tube 1 descends together with the connection hose 4 and is located inside the tank t after the connection tube 1 is connected to the connecting tube 1,

3b, the user tightens the nozzle cap 14 to the both screws 12 to slowly lower the nozzle cap 14. At this time, The upper surface of the hermetic packing 13 is gradually contracted while the upper surface of the hermetic packing 13 is pressed against the outer surface of the hermetic packing 13 through the inner surface of the hermetic packing 13, 13 and the connecting hose 4 is maintained. Then, the fastening of the nozzle cap 14 is stopped.

3B, when the nozzle cap 14 is lowered, the airtight packing 13 is pushed downward, so that the airtight packing 13 and the lower end of the both screws 12 12c are firmly brought into close contact with each other to maintain airtightness.

3C, the suction force of the gas meter m can be reliably transmitted to the connection hose 4 in a state where the gas is reliably prevented from being discharged through the closed nozzle 10 between the cover 3 and the connection hose 4, The gas in the tank t is sucked by the gas collector 2 and the sucked gas is supplied to the gas measuring device 2 through the connecting hose 4 so that the gas concentration .

1 and 2, the pressurizing body 20 is formed on the hermetic packing 13, and the upper portion is divided into a plurality of pieces at an equal interval,

3B, when the nozzle cap 14 is fastened to both the screws 12, the upper portion of the pressing body 20 is pressed so that the hermetic packing 13 And the airtight packing 13 is brought into contact with the rotating nozzle cap 14 so that the nozzle cap 14 is twisted in a rotating direction so that the airtight packing 13 is deformed or deformed. It is desirable to prevent damage beforehand to enhance the structural stability of the device.

It further includes a ring packing (30) formed between the cover (3) and the two screws (12) to induce a stable airtightness of the cover (3) and both screws (12) ,

It is preferable to stably prevent gas from being discharged to the outside due to the ring packing 30 even if the gas flows out between the cover 3 and the screws 12 so that the gas tightness is further improved.

On the other hand, as shown in FIG. 2, a knurling 40 is formed on the outer circumferential surface of the nozzle cap 14 to guide the user to easily fasten the nozzle cap 14, thereby ensuring ease of use of the apparatus .

The gas sampling apparatus 100 for a marine vessel having the airtightness of the present invention having the above-described components includes a cover 3 and a cover 3 on the top of the cover 3 connected to the connection tube 1 The closed nozzle 10 for preventing the harmful gas contained in the tank from escaping to the outside is provided between the connecting hoses 4 passing through and the measurer measures the explosive gas or oxygen concentration in the tank t It is possible to stably prevent the measurer from suffering from the disease due to the harmful gas because it is not exposed to the harmful gas.

The gas sampling apparatus 100 for a marine vessel having an airtightness according to an embodiment of the present invention having the above-described configuration measures the gas concentration of the marine tank t as follows.

First, as shown in FIG. 3A, in order to measure the gas concentration in the tank t using the gas sampling apparatus 100 for a marine vessel having airtightness of the present invention, a valve v The gas collector 2 located inside the connection tube 1 is lowered by using the connection hose 4 connected to the gas collector 2 so that the tank 1 t).

3B, the nozzle cap 14 of the closed nozzle 10 through which the connection hose 4 passes is fastened to both the screws 12 so that the tightening portion 14b of the nozzle cap 14 And the outer peripheral surface of the connecting hose 4 through which the inner circumferential surface of the airtight packing 13 passes through the airtight packing 13 is tightly adhered to the airtight packing 13 by the pressing body, The airtightness between the packing 13 and the connecting hose 4 is maintained.

At the same time, as shown in FIG. 3B, the airtight packing 13 is pressed downward in the course of fastening the nozzle cap 14 to the both screws 12, The step 12c of the screw 12 is tightly contacted and tightly held to maintain airtightness.

3 (c), the gas collector 2 is connected to the gas collector 2 through the suction force of the gas meter m, while the airtightness between the cover and the connection hose is maintained through the closed nozzle as described above. Gas is sucked and the sucked gas is supplied to the gas measuring instrument 2 through the connecting hose 4 to easily measure the gas concentration in the tank t.

3D, when the measurement of the gas concentration in the tank t is completed, the nozzle cap 14 fastened to both the screws 12 is released and the nozzle cap 14 is pressed The gas-tight packing 13 is expanded and restored, and the gas hose 4 is raised and lowered together with the connection hose 4 to complete the measurement.

The gas concentration in the vessel tank t can be continuously and safely measured using the gas sampling apparatus 100 for marine vessels having the airtightness of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. You will understand the point. It goes without saying that variations can be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the scope of claim of the present invention is not limited within the scope of the detailed description, but will be defined by the following claims and technical ideas thereof.

1. Connecting tube 2. Gas collector
3. Cover 4. Connection hose
5. Opening and closing valve
v. Valve t. Tank
m. Gas meter
10. Closed nozzle 11. First arm thread
12. Both screws 12a. The first male thread
12b. Second Male Threads 12c. Step
13. Confidential packing 14. Nozzle cap
14a. Second female thread 14b. Throat
20. Pressurizer 30. Ring packing
40. Knurling
100. Gas sampling device for ships with airtightness

Claims (5)

(1) which is connected to a valve (v) which is connected to the tank (t) inside the vessel so that one end thereof is exposed on the deck of the vessel and is connected to the inside of the connection tube A gas collector 2 having an inlet 2a through which gas is introduced at one side thereof and an outlet 2b through which an inflow gas is discharged at an upper portion thereof and a gas collector 2 connected to the other end of the connection tube 1, A cover 3 for preventing the gas collector 2 from escaping from the inside of the container 1 and communicating with the connection tube 1 through the inside thereof and one end of the cover 3 and the connection tube 1 A connecting hose 4 connected to the outlet 2b of the gas collector 2 through the other end and connected to the gas meter m at the other end and a connecting hose 4 formed on the connecting hose 4, (5) for determining the opening and closing of the inside of the gas sampling device (4), the gas sampling device comprising:
And a closed nozzle 10 which is fixedly connected to the upper portion of the cover 3 to stably shut off the discharge of the gas contained in the tank t between the inside of the cover 3 and the connecting hose 4 Wherein the gas sampling device has an airtightness.
The method according to claim 1,
The closed nozzle (10)
A first female thread 11 formed inside the upper portion of the cover 3,
A first male screw thread 12a to be fastened to the first female thread 11 is formed on a lower outer circumferential surface thereof and a second male screw thread 12b is formed on an upper outer circumferential surface thereof and an annular step 12c are formed,
Tight packing (13) which penetrates inside and has a predetermined elasticity, is located inside the two screws (12) and the lower part is in contact with the step (12c) of the two screws (12)
And a second female screw thread 14a fastened to the second male thread 12b of the two screws 12 is formed on the inner circumferential surface of the inner thread portion 12. The inner upper portion of the tapered tightening portion And a nozzle cap (14) on which a plurality of nozzles (14a, 14b) are formed,
When the user tightens the nozzle cap 14 to the both screws 12, the nozzle cap 14 is gradually lowered. At this time, the airtight packing 13 is attached to the throttle portion 14b of the nozzle cap 14, The outer circumferential surface of the connecting hose 4 through which the inner circumferential surface of the airtight packing 13 passes through the airtight packing 13 is tightened so that the airtightness between the airtight packing 13 and the connecting hose 4 Lt; / RTI &
At the same time, the airtight packing 13 is pressed downward on the descending nozzle cap 14 so that the lower portion of the airtight packing 13 and the step 12c of the both screws 12 are firmly brought into contact tight contact with each other, So as to stably shut off gas discharge between the cover (3) and the connecting hose (4).
3. The method of claim 2,
A pressure member 20 is formed on the hermetic packing 13, and the upper portion is divided into a plurality of pieces at an equal interval,
When the nozzle cap 14 is lowered by being fastened to both the screws 12, the upper portion of the pressing body 20 is pressed so that the upper portion of the airtight packing 13 is pressurized and contracted by the pressing body 20 So,
The gas tight packing 13 is brought into contact with the rotating nozzle cap 14 so that the nozzle cap 14 is twisted in the rotating direction to prevent the gas tight packing 13 from being deformed or damaged, So as to enhance the stability of the gas sampling device.
3. The method of claim 2,
Further comprising a ring packing (30) formed between said cover (3) and both screws (12) to induce stable airtightness of said cover (3) and both screws (12)
So that gas is reliably prevented from being discharged between the cover (3) and both screws (12).
3. The method of claim 2,
A knurling (40) is formed on an outer circumferential surface of the nozzle cap (14) so that a user can easily fasten the nozzle cap (14).
KR1020150191840A 2015-12-31 2015-12-31 Marine gas sampling device having the air tightness KR101676328B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110455593A (en) * 2019-08-15 2019-11-15 中国工程物理研究院化工材料研究所 A kind of explosive aging outgassing collector and sealing device
KR20200033621A (en) * 2018-09-20 2020-03-30 주식회사 에코 Waste liquid container with exposed filter
CN112129594A (en) * 2020-09-09 2020-12-25 启东市恒盛仪表设备有限公司 Low-pressure gas closed sampler
KR102640721B1 (en) * 2022-11-10 2024-02-23 고려대학교 세종산학협력단 In-situ Passive Sampler for measuring Volatile Organic Compounds in soil

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Publication number Priority date Publication date Assignee Title
KR19980065135A (en) * 1998-06-25 1998-10-07 전중권 Security gas thrower
KR20100005490A (en) * 2008-07-07 2010-01-15 주식회사 마스테코 Valve for supplying pressure of portable extinguisher
KR20120090228A (en) * 2011-02-07 2012-08-17 (주)로커스 A return valve for extremely low temperature fluid
KR20140048145A (en) * 2011-06-02 2014-04-23 오스트레일리안 뉴클리어 사이언스 앤드 테크놀로지 오가니제이션 Filling devices, systems and methods for transferring hazardous waste material into a sealable container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980065135A (en) * 1998-06-25 1998-10-07 전중권 Security gas thrower
KR20100005490A (en) * 2008-07-07 2010-01-15 주식회사 마스테코 Valve for supplying pressure of portable extinguisher
KR20120090228A (en) * 2011-02-07 2012-08-17 (주)로커스 A return valve for extremely low temperature fluid
KR20140048145A (en) * 2011-06-02 2014-04-23 오스트레일리안 뉴클리어 사이언스 앤드 테크놀로지 오가니제이션 Filling devices, systems and methods for transferring hazardous waste material into a sealable container

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200033621A (en) * 2018-09-20 2020-03-30 주식회사 에코 Waste liquid container with exposed filter
KR102132985B1 (en) * 2018-09-20 2020-07-10 주식회사 에코 Waste liquid container with exposed filter
CN110455593A (en) * 2019-08-15 2019-11-15 中国工程物理研究院化工材料研究所 A kind of explosive aging outgassing collector and sealing device
CN112129594A (en) * 2020-09-09 2020-12-25 启东市恒盛仪表设备有限公司 Low-pressure gas closed sampler
CN112129594B (en) * 2020-09-09 2023-11-28 启东市恒盛仪表设备有限公司 Low-pressure gas airtight sampler
KR102640721B1 (en) * 2022-11-10 2024-02-23 고려대학교 세종산학협력단 In-situ Passive Sampler for measuring Volatile Organic Compounds in soil

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