JPH04844Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a fumigation hatch for storage warehouses that facilitates fumigation of storage rooms of art galleries, museums, etc. that house valuable cultural properties.

(Prior art) Art galleries, museums, etc. have a variety of valuable items in their storage warehouses, and they are protected against mold and pests.
Periodic fumigation is required to protect against damage (or deterioration) such as For fumigation work, in the case of large storage warehouses, each time the stored items are moved to a special fumigation warehouse, treated, and returned to their original position, it takes a huge amount of time and effort, and the storage This task becomes extremely difficult due to considerations to prevent damage when moving items. For this reason, valuable items are inevitably prioritized for fumigation, and due to cost and time constraints, only a portion of the collection tends to be fumigated, and untreated items are There is also the possibility of infection or reproduction from the "mold" and "pests" present, making it difficult to obtain ideal fumigation results.

Therefore, an effective and easy-to-work method of fumigation is to inject fumigation gas directly into storage warehouses, and this method is currently being used in some cases.

(Problem that the invention aims to solve) In the conventional fumigation of stored items mentioned above, there are cases where the entire stored item cannot be fumigated if carried out individually, so fumigation gas is injected directly into the storage room. This method is preferable because it allows the entire collection to be fumigated at the same time, but in order to install full-scale fumigation equipment, fixed valves and piping must be installed in each storage room, and fumigation equipment must be installed in each storage room, which increases equipment costs. There was a problem that the amount was high.

In addition, in storage warehouses without fumigation equipment, when fumigating the inside of the storage room, open the entrance door and administer the fumigant, then close the door quickly to escape from the toxicity of the fumigant.
Workers were forced to perform light-skilled tasks such as closing the entrances and exits, and after fumigation, workers had to wear gas masks and bring ventilation equipment into the storage room to perform forced exhaust air, which was primitive and dangerous. This is an extremely problematic process.

In view of the above, the technical problem of the present invention is to provide a fumigation hatch for storage warehouses that solves the above problems by making it easier to fumigate the entire storage warehouse and reducing equipment costs. .

(Means for Solving the Problems) The present invention, as a means for solving the above problems, includes the following steps in configuring a fumigation hatch for storage:
A cylindrical sleeve is attached to the hatch attachment point of the storage, a columnar fire-resistant valve is detachably attached to the sleeve via a gasket, and the fire-resistant valve is inserted from inside the warehouse to the end of the fire-resistant valve inside the warehouse. A fixing member is provided to fix the device.

(Function) With the above structure, the present invention can fix the fixing member from the inside of the refrigerator to the sleeve side when not fumigating so that the fireproof valve cannot be removed from outside the refrigerator, and when fumigating, the fixing member can be fixed from the inside of the refrigerator in advance. The removable hose for fumigation can be connected to the sleeve side by disengaging the fireproof valve from the outside of the storage, and the fumigation agent can be dispensed into the storage through the removable hose. Supply and exhaust can be done through the detachable hose, making fumigation work easier.
It becomes possible to realize an inexpensive fumigation hatch with a simple structure.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As a first embodiment, a fumigation hatch provided on a door body of an entrance will be explained based on FIGS. 1 to 6.

Fumigation hatches shall be provided for dosing, sampling, and air supply and exhaust. As shown in FIG.
The sleeve 13 has a thick flange 13b at both ends of a cylindrical portion 13a that penetrates through the sleeve 13, and the flange 13b of the sleeve 13 is attached to the outside end of a cylindrical body 14a made of stainless steel that can be inserted into the hollow portion of the sleeve 13. A valve 14 is provided with an outer side flange 14b of the same diameter, and a threaded portion 14c that protrudes toward the inner side of the storage than the inner side flange 13b of the sleeve 13 at the inner side end of the cylindrical main body 14a, and a center portion on the threaded portion 14c. and the internal plate 16 which is fixed by screwing the nut 15 onto the threaded part 14c.
, a neoprene rubber packing 17 interposed between the sleeve 13 and the outside flange 14b of the valve 14, and a neoprene rubber packing 18 interposed between the sleeve 13 and the internal plate 16.
It consists of.

A handle 19 is provided on the surface of the outside flange 14b of the valve 14 to facilitate handling of the valve 14 when the valve 14 is attached or removed, and a detent 20 is provided at the base of the cylindrical body 14a on the back surface to prevent the sleeve 13 from rotating. The valve 14 is engaged with a detent 21 provided on the inner diameter to facilitate positioning of the valve 14, and bolt holes and screw holes are formed at appropriate locations on the outside flange 13b of the sleeve 13 and the outside flange of the valve 14, respectively. Valve 1 by bolt 22
4 can be fixed to the sleeve 13.

The internal plate 16 is provided with a handle 23 similar to the external flange 14b of the valve 14 to facilitate attachment and detachment of the internal plate 16.

In the fumigation hatch 11 for medication configured in this way, when administering medication, the nut 15 is first screwed into the threaded portion 14.
c, remove the internal plate 16 and packing 18, then remove the bolts 22, pull out the cylindrical main body 14a from the sleeve 13, and remove the valve 14 and packing 17.

Sampling fumigation hatches are formed to the same structure and dimensions as those used for dosing.

As shown in Figure 2, a fumigation hatch 31 for air supply and exhaust
A thick flange 3 is provided at both ends of a cylindrical portion 33a that penetrates the door body 12 and has a larger diameter than that for medication.
3b and the sleeve 3
A sleeve 33 is inserted into the outer end of the cylindrical main body 34a, which can be inserted into the hollow part of the sleeve 33 and filled with a refractory material inside.
A valve 34 is provided with a refrigerator outer flange 34b having the same diameter as the flange of the sleeve 33, and a threaded portion 34c that protrudes toward the refrigerator inner side than the refrigerator inner flange 34b of the sleeve 33 at the refrigerator inner end of the cylindrical main body 34a, and a threaded portion 34c. The internal plate 36 is fixed by fitting the center part thereof and screwing the nut 35 to the threaded part 34c.
, a neoprene rubber packing 37 interposed between the sleeve 33 and the outside flange 34b of the valve 34, and a neoprene rubber packing 38 interposed between the sleeve 33 and the internal plate 36.
It consists of.

A handle 39 is provided on the surface of the outer side flange 34b of the valve 34 to facilitate handling of the valve 34 when attaching and detaching the valve 34, and a detent 40 is provided at the base of the cylindrical body 34a on the back surface to prevent the sleeve 33 from rotating. The valve 34 is easily positioned by engaging with a detent 41 provided on the inner diameter, and bolt holes are drilled at appropriate locations on the outside flange 33b of the sleeve 33 and the outside flange 34b of the valve 34, respectively. 42 allows the valve 34 to be fixed to the sleeve 33.

The internal plate 36 is provided with a handle 43 similar to the external flange 34b of the valve 34 to facilitate attachment and detachment of the internal plate 36.

In the air supply/exhaust fumigation hatch 31 configured in this way, prior to fumigation that requires air supply or exhaust, the internal plate 36 is removed from the inside of the refrigerator by removing the nut 35 from the threaded portion 34c, and then the fumigation is performed. Later, when it becomes necessary to ventilate the inside of the storage, the bolt 42 is removed and the valve 34 is removed.

For medication, for sampling, configured in this way.
As shown in FIG. 3, the air supply/exhaust fumigation hatch should be placed away from the position where the clamp handle 53, cylinder lock 54, or code lock 55 of the door body 12, which is attached to the frame body 51 via the hinge 52, is attached. Then, a fumigation hatch 11 for medication is placed at the bottom of the door body 12, and fumigation hatches 31 for air supply and exhaust are placed one above the other for air supply and one for exhaust air, and the same fumigation hatch 11 for medication is used as a sampling fumigation hatch Objects are placed in the center of the door body 12.

In order to fumigate the interior of the storage cabinet using the door body 12 provided with the fumigation hatches 11 and 31 configured in this way, as a preparatory work, the interior plates 16 and 36 of the hatches are removed from the back side of the door body 12, respectively. After connecting the medication hose and duct fan to each hatch from the back of the door into the chamber, close the door body 12, remove the valve 14 of the medication fumigation hatch 11, and open the sleeve 13 with the valve 14 removed. Using the flange 13b, as shown in FIGS. 5 and 6, the bolt 22 is inserted between the flange 57a of the detachable hose 57 and the flange 13b of the sleeve 13 to maintain an airtight state. By tightening the detachable hose 5
Connect 7. A fumigation facility is connected to the attachment/detachment hose 57 so that the ethylene oxide/methyl bromide fumigant can be vaporized and injected into the storage. In addition, the valve 34 of the air supply and exhaust fumigation hatch 31 is removed, and the detachable hose is airtightly connected via the gasket 37 using the flange 33b of the sleeve 33 as in the case of medication. be connected to provide ventilation as needed.

As soon as the preparation work is completed, the fumigant is sent into the storage from the fumigation equipment, and after a predetermined period of time, the ventilation system is activated to ventilate the inside of the storage, and the concentration of the fumigant in the storage is inspected using a sampling fumigation hatch to ensure that it is sufficient. After confirming that ventilation has been achieved, each hatch 11, 3
1, remove the detachable hose 57 and attach the valves 14, 34, open the door body 12 after attaching the valve, remove the medication hose and ventilation duct fan from the inside of the door body 12, and then connect the back plate 16. , 36, and valve 1.
The work is completed by completely closing the door body 12 so that the parts 4 and 34 cannot be removed from the outside of the refrigerator.

Next, as a second embodiment, a fumigation hatch provided on the wall of a storage room will be explained based on FIGS. 7 to 12. The fumigation hatch for the storage room wall has the same basic structure as the fumigation hatch for the door body, but has a larger diameter, so a detailed explanation of the same parts as the fumigation hatch for the door body will be omitted.

As shown in FIG. 7, a fumigation hatch 61 for dosing or sampling consists of a sleeve 6 that sandwiches a steel lining 63 on a wall surface 62 and an isoband 64.
5 is formed into a flanged cylindrical shape, the flange 66 on the outside of the refrigerator is welded to one end of the cylindrical part 67, and the flange 68 on the inside of the refrigerator is welded to the end of the cylindrical part 67 on the inside of the refrigerator. Screw it on so that it can be attached and detached. sleeve 6
A packing groove 70 is formed on the inner surface of the cylindrical part of the valve 5, and an O-ring 71 made of neoprene rubber is fitted into the packing groove 70 so that the end surface of the valve 72 on the inner side of the refrigerator comes into contact with the valve 72 for sealing. Between the flange 68 and the isoband 64 on the inner side of the refrigerator, a silicone rubber sealing material 73 that changes from gel-like to raw rubber-like to seal the complex-shaped gap is filled to maintain airtightness.

The valve 72 that fits into the sleeve 65 consists of a cylindrical body 72a filled with a fire retardant and a flange 72b provided at the outer end of the cylindrical body 72a, and a handle 74 is attached to the flange 72b. The inner side end of the cylindrical main body 72a of the valve 72 has the largest outer diameter that can be inserted into the hollow part of the sleeve 65, and has an O-ring 71 fitted therein.
to maintain airtightness by bringing the end surfaces into contact with each other.

Below the inner diameter of the outer end of the sleeve 65,
As shown in FIG. 8, a guide rail 75 is provided by welding two parallel round rods, and a circular shape that fits between the guide rails 75 of the sleeve 65 is provided on the lower side of the outer periphery of the cylindrical body 72a of the valve 72. A detent 76 for the valve 72 is provided by welding the rod.

As shown in FIG. 9, on the inner side end surface of the valve 72, a plurality of pieces are provided on the valve side edge of the small diameter cylindrical portion 67a side of the cylindrical portion 67 of the sleeve 65 and protrude inward at equal pitch intervals on the circumference. latch latch member 7
A latch means 78 for locking to the latch member 7
Provided corresponding to position 7. This latch means 7
Since the knob 79 is operated from inside the refrigerator, by locking the latch 80 to the latch latch member 76, the valve 72 cannot be removed from outside the refrigerator.

Although the fumigation hatch 81 for air supply and exhaust has a larger diameter than the one for medication or sampling, the basic structure is the same, and as shown in FIGS. 64 is formed into a flanged cylinder, the flange 83 on the outside of the refrigerator is welded to one end of the cylindrical member 84, and the flange 85 on the inside of the refrigerator is welded to one end of the cylindrical member 84.
is removably attached by screwing to the end face of the angle member 86 welded to the other end of the cylindrical portion 84. A gasket groove 87 is formed on the inner surface of the cylindrical portion of the sleeve 82, and an O-ring 88 is fitted into the gasket groove 87 so that the end surface of the valve 89 on the inner side of the refrigerator comes into contact with the gasket groove 87 for sealing. A silicone rubber sealing material 7 is placed between the flange 85 on the inside of the refrigerator and the isoband 64.
3 to maintain airtightness.

The valve 89 has a cylindrical body 89 filled with a fire retardant.
A flange 89b is provided at the outside end of the container a, and a handle 90 is attached to the flange 89b. valve 89
The inner end of the cylindrical main body 89a is connected to the sleeve 82.
It has the maximum outer diameter that can be inserted into the hollow part of the body, and its end face abuts against the O-ring 88 fitted inside to maintain airtightness.

Below the inner diameter of the outer end of the sleeve 82,
As shown in FIG. 11, a guide rail 91 is provided by welding two parallel round rods, and a circular shape that fits between the guide rails 91 of the sleeve 82 is provided on the lower side of the outer periphery of the cylindrical body 89a of the valve 89. A stop 92 for the valve 89 is provided by welding the rod.

As shown in FIG. 12, on the inner side end surface of the valve 89, a plurality of pieces are provided on the valve side edge of the small-diameter cylindrical portion 84a side of the cylindrical portion 84 of the sleeve 82 and protrude inward at equal pitch intervals on the circumference. A latch means 94 for engaging the latch member 93 is provided corresponding to the position of the latch member 93. Since the latch means 94 operates the knob 95 from inside the refrigerator, by locking the latch 96 to the latch latch member 93, the valve 89 cannot be removed from outside the refrigerator.

In the second embodiment configured as described above, the interior of the storage room can be easily fumigated by following the same procedure as in the first embodiment.

In the first and second embodiments described above, it is easy to fumigate the entire storage warehouse at once, making it possible to perform efficient and economical fumigation. Since the stored items in the storage warehouse will not be moved for fumigation, damage to the stored items can be prevented. Sleeve 13,3
3, 65, 82 and valves 14, 34, 72, 89
between the seal 17, 37 or O-ring 7
1, 87, etc., airtightness is maintained and air conditioning loss can be completely eliminated as the opening of the storage. The valves 14, 34, 72, 89 are provided with fire resistance, and the internal plates 16, 36 are
It is possible to fix the valve from the inside of the warehouse by attaching it or locking it with the latch means 77, 94 so that the valve cannot be removed from outside the warehouse, and the environmental preservation property inside the storage can be maintained. During fumigation, each hose can be reliably connected and airtight, preventing fumigation agent from leaking and preventing gas leakage accidents.

In addition, the structure of the fumigation hatch is composed of a cylindrical body and a columnar body fitted into the cylindrical body, so the structure is simple, the equipment cost is low, and it is economical.

(Effects of the invention) As described above, in this invention, a columnar valve is airtightly attached to a cylindrical sleeve, and by making it possible to lock the valve from the inside of the warehouse, it is possible to maintain the environment inside the storage warehouse when fumigation is not performed. can hold,
To easily perform batch fumigation in a storage during fumigation, and to realize economical fumigation equipment with a simple hatch structure and low cost, with good workability.

[Brief explanation of the drawing]

1 to 12 are drawings showing embodiments of the present invention. FIG. 1 is a longitudinal sectional view showing a fumigation hatch for dosing and sampling in the first embodiment, and FIG. FIG. 3 is a front view showing the door body to which the first embodiment is applied; FIG. 4 is a side view showing the door body to which the first embodiment is applied; FIG. 5 6 is a partial cross-sectional side view showing a state in which a detachable hose is attached to a fumigation hatch, FIG. 6 is a front view showing a state in which a detachable hose is attached to a fumigation hatch, and FIG. FIG. 8 is an enlarged sectional view taken along the line - in FIG. 7, FIG. 9 is a front view showing the latch means applied to the fumigation hatch for dosing and sampling, and FIG. 10 is a longitudinal sectional view showing the fumigation hatch. 11 is an enlarged sectional view taken along the - line in FIG. 10, and FIG. 12 is a front view showing the latch means applied to the fumigation hatch for air supply and exhaust of the second embodiment. . 11... Fumigation hatch for medication, 12... Door body, 1
3, 33, 65, 87...Sleeve, 14, 3
4, 72, 89... Valve, 14a, 34a...
Cylindrical main body, 14b, 34b...Outside flange, 14c, 34c...Threaded portion, 15, 35...
Nut, 16, 36...Inner plate, 31...
Fumigation hatch for air supply and exhaust, 76, 93... Latch latch member, 77, 94... Latch means, 78, 95...
...Knob, 79, 96...Ratsuchi.

Claims (1)

[Scope of utility model registration request] A cylindrical sleeve is attached to the hatch attachment point of the storage, a columnar fire-resistant valve is detachably attached to the sleeve via a gasket, and the fire-resistant valve is inserted from inside the warehouse to the end of the fire-resistant valve inside the warehouse. A fumigation hatch for storage, characterized by having a fixing member for fixing.