CN210942213U - Rapid ventilation structure for dangerous cargo cabin - Google Patents
Rapid ventilation structure for dangerous cargo cabin Download PDFInfo
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- CN210942213U CN210942213U CN201921595728.8U CN201921595728U CN210942213U CN 210942213 U CN210942213 U CN 210942213U CN 201921595728 U CN201921595728 U CN 201921595728U CN 210942213 U CN210942213 U CN 210942213U
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- tapered
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Abstract
The utility model discloses a rapid ventilation structure of a dangerous goods cabin, which comprises a manhole cover, a ventilation hose and a rapid joint, wherein the manhole cover comprises a waist-shaped manhole cover component and a circular manhole cover component; the oval-shaped manhole cover assembly comprises: a toroidal base welded to the bulkhead; the waist-shaped cover plate is fastened on the waist-shaped annular base through a plurality of studs distributed along the waist-shaped ring, and a round hole is formed in the center of the waist-shaped cover plate. The circular manhole cover assembly comprises: the circular base is concentrically welded on the waist-shaped cover plate with the waist-shaped cover plate; and the circular cover plate is fastened on the circular ring-shaped base through a plurality of studs distributed along a circular ring. The quick connector includes a tapered conduit, a first tapered ferrule, and a second tapered ferrule. Therefore, the problems that the disassembly process is complicated, the carrying is inconvenient, the replacement time is long, and harmful gas leakage is possibly caused when the temporary ventilation tooling part is replaced are solved.
Description
Technical Field
The utility model relates to a marine equipment field especially relates to a rapid ventilation structure of hazardous articles cabin.
Background
Governments and international organizations have gradually become aware of the hazard of ship exhaust pollution, and have made relevant regulations to define emission control zones and limit the emission of nitrogen oxides (NOx) and sulfur oxides (SOx) of ships. With the effectiveness of sulfur and nitrate limiting laws, the addition of a desulfurization and denitrification system to a ship has become a hard index. NaOH (sodium hydroxide) is used as a neutralizer in the desulfurization system, and urea is used as a reaction catalyst in the denitrification system. The ship will have special structural compartments for storing these special liquids. When crew members clean these compartments, forced ventilation of the compartments is required to vent toxic and harmful gases from the gas permeable tubes to the atmosphere. The common method is to disassemble the manhole cover and replace the simple manhole cover with the ventilation hose joint at two ends, and connect the hose for ventilation, and the following disadvantages exist:
1) a plurality of nuts need to be disassembled at one time, which is tedious;
2) the manhole cover plate is integrally heavy, and is inconvenient to disassemble and carry;
3) the whole disassembly and replacement process is long, and partial harmful gas can overflow;
4) the sealing between the ventilation hose and the edge of the hole is not good.
Disclosure of Invention
An object of the utility model is to provide a dangerous goods cabin ventilates structure fast solves when changing the interim ventilation frock spare, and the dismantlement process is loaded down with trivial details, the transport is inconvenient, change time is long and probably cause harmful gas to leak the scheduling problem.
The technical scheme for realizing the purpose is as follows:
a rapid ventilation structure of a dangerous goods cabin comprises a manhole cover, a ventilation hose and a rapid joint, wherein,
the manhole cover comprises a waist-round manhole cover component and a round manhole cover component;
the oval-shaped manhole cover assembly comprises:
a toroidal base welded to the bulkhead; and
the waist-shaped cover plate is fastened on the waist-shaped annular base through a plurality of studs distributed along the waist-shaped ring, and a round hole is formed in the center of the waist-shaped cover plate;
the circular manhole cover assembly comprises:
the circular base is concentrically welded on the waist-shaped cover plate with the waist-shaped cover plate; and
the circular cover plate is fastened on the circular ring-shaped base through a plurality of studs distributed along a circular ring;
the quick coupling includes:
a conical conduit having a circular middle part and tapered ends and disposed inside the ventilation hose;
the first conical clamping sleeve is sleeved on the ventilation hose outside the conical conduit and is detachably connected with the annular base after the circular cover plate is detached; and
the ventilation hose is sleeved outside the tapered conduit, and a second tapered clamping sleeve is hermetically connected with the outer wall of the waist-shaped cover plate after the circular cover plate is detached.
Preferably, one end of the first conical clamping sleeve is conical, the other end of the first conical clamping sleeve is circular, and a plurality of U-shaped bayonets which correspond to the studs on the circular base one by one are arranged on the outer edge of the circular end of the first conical clamping sleeve.
Preferably, one end of the second conical clamping sleeve is conical, the other end of the second conical clamping sleeve is circular, and a sealing ring is arranged on the outer edge of the circular end of the second conical clamping sleeve.
Preferably, the rounded end of the first tapered ferrule and the rounded end of the second tapered ferrule are disposed opposite one another.
Preferably, the radius R of the U-shaped bayonet is 0.5d +2 mm, and d is the major diameter of the screw thread of the stud on the circular base.
Preferably, the tapered conduit is provided with a back-stop damper.
The utility model has the advantages that: the utility model discloses only need dismantle the nut of circular manhole cover subassembly, it is more simple and convenient. Meanwhile, the weight of the round manhole cover is about 1/6 of the waist round manhole cover, and the round manhole cover is more convenient to disassemble and carry. The quick coupling used is connected to the ventilation hose without the aid of further tools. And the time of the replacement process is short, the sealing performance is reliable, and the possibility of harmful gas leakage is very low.
Drawings
FIG. 1 is a front view of the manhole cover of the present invention;
FIG. 2 is a side view of the manhole cover of the present invention;
FIG. 3 is a schematic diagram of the outer shape of the quick connector of the present invention;
fig. 4 is a view of the circular end of the first tapered cutting ferrule of the present invention;
fig. 5 is a cross-sectional view of a second tapered ferrule of the present invention;
FIG. 6 is a schematic view of the connection between the quick connector and the ventilation hose according to the present invention;
FIG. 7 is a schematic view of the connection between the quick connector and the manhole cover according to the present invention;
fig. 8 is a detailed view of the connection part between the quick connector and the manhole cover according to the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 8, the present invention relates to a rapid ventilation structure for a hazardous material cabin, which includes a manhole cover, a ventilation hose 1 and a quick coupling 2.
As shown in fig. 1 and 2, the manhole cover comprises a circular manhole cover assembly 3 and a circular manhole cover assembly 4. Wherein, the oval manhole cover assembly 3 comprises an oval ring-shaped base 31 and an oval cover plate 32. A toroidal base 31 is welded to bulkhead 100. The waist-circular cover plate 32 is fastened on the waist-circular annular base 31 through a plurality of studs distributed along the waist-circular ring, and a circular hole is formed in the center.
The circular manhole cover assembly 4 comprises a circular base 41 and a circular cover plate 42. The circular ring-shaped base 41 is welded on the waist-shaped cover plate 32 and shares the same center with the waist-shaped cover plate 32. The circular cover plate 42 is fastened to the circular base 41 by a plurality of studs distributed along the circular ring. The circular cover plate 42 is adapted to the size of the circular hole on the waist-circular cover plate 32.
As shown in fig. 3, 4 and 5, the quick connector 2 includes a tapered conduit 21, a first tapered ferrule 22 and a second tapered ferrule 23.
The tapered duct 21 is circular in the middle and tapered at both ends, and is disposed inside the ventilation hose 1. The first conical cutting sleeve 22 is sleeved on the ventilation hose 1 outside the conical conduit 21 and is detachably connected with the annular base 41 after the circular cover plate 42 is detached. The second conical clamping sleeve 23 is sleeved on the ventilation hose 1 outside the conical conduit 21 and is connected with the outer wall of the waist-round cover plate 32 in a sealing way after the round cover plate 42 is detached.
Specifically, one end of the first tapered sleeve 22 is tapered, the other end is circular, and a plurality of U-shaped bayonets 221 corresponding to the studs on the circular base 41 one by one are disposed on the outer edge of the circular end. In this embodiment, there are 4U-shaped notches 221. The radius R of the U-shaped bayonet 221 is 0.5d +2 mm, and d is the major diameter of the screw thread of the stud on the circular base 41.
One end of the second conical cutting sleeve 23 is conical, the other end is round, and a sealing ring 231 is arranged on the outer edge of the round end of the second conical cutting sleeve. The sealing ring 231 is embedded in the brim-type flange of the rounded end. The rounded end of the first tapered ferrule 22 and the rounded end of the second tapered ferrule 23 face each other.
The tapered duct 21 is divided into two forms, namely, a non-return damper and a non-return damper.
The following steps are taken to install the rapid ventilation structure:
1) the ventilation hose 1 passes through the first tapered clamping sleeve 22, is sleeved on the tapered conduit 21, is then sleeved with the second tapered clamping sleeve 23, and the ventilation hose 1 is pressed tightly through the fit of the first tapered clamping sleeve 22, the second tapered clamping sleeve 23 and the inclined surface of the tapered conduit 21, which is shown in detail in fig. 6. The flow direction indication on the check cone conduit 21 coincides with the actual flow direction of the ventilation, i.e. from the side of the first cone ferrule 22 to the side of the second cone ferrule 23.
2) The fastening nut of the circular cover plate 42 is loosened, and the circular cover plate 42 is removed.
3) One end of the second conical clamping sleeve 23 of the quick connector 2 and the ventilation hose 1 extend into a round hole on the waist-shaped cover plate 32, and the U-shaped bayonet 221 of the first conical clamping sleeve 22 is aligned with the stud on the annular base 41. It is confirmed that the rotation shaft of the check damper of the tapered duct 21 is located at the upper part of the duct and the center line of the rotation shaft is in the horizontal position, otherwise the check damper cannot be normally opened and closed. After the error is confirmed, the quick connector 2 is continuously inserted until the pushing can not be carried out. And screwing a stud matched with the U-shaped bayonet 221 on a bolt. At this point, the quick connector 2 is installed, see FIG. 7. The nut is tightened to make the sealing ring 231 closely contact with the outer wall of the waist-shaped cover plate 32, so as to achieve the sealing effect, as shown in fig. 8.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (6)
1. A rapid ventilation structure of a dangerous goods cabin is characterized by comprising a manhole cover, a ventilation hose and a rapid connector, wherein,
the manhole cover comprises a waist-round manhole cover component and a round manhole cover component;
the oval-shaped manhole cover assembly comprises:
a waist-circular annular base welded to the bulkhead; and
the waist-shaped cover plate is fastened on the waist-shaped annular base through a plurality of studs distributed along the waist-shaped ring, and a round hole is formed in the center of the waist-shaped cover plate;
the circular manhole cover assembly comprises:
the circular base is concentrically welded on the waist-shaped cover plate with the waist-shaped cover plate; and
the circular cover plate is fastened on the circular ring-shaped base through a plurality of studs distributed along a circular ring;
the quick coupling includes:
a conical conduit having a circular middle part and tapered ends and disposed inside the ventilation hose;
the first conical clamping sleeve is sleeved on the ventilation hose outside the conical conduit and is detachably connected with the annular base after the circular cover plate is detached; and
the ventilation hose is sleeved outside the tapered conduit, and a second tapered clamping sleeve is hermetically connected with the outer wall of the waist-shaped cover plate after the circular cover plate is detached.
2. The rapid ventilation structure for dangerous cargo compartments as claimed in claim 1, wherein one end of said first tapered clip sleeve is tapered, the other end is circular, and a plurality of U-shaped bayonets corresponding to the studs of said circular base are provided on the outer edge of the circular end.
3. The rapid ventilation structure for hazardous material cabin of claim 2, wherein one end of the second conical ferrule is conical, the other end is round, and a sealing ring is arranged on the outer edge of the round end.
4. The hazardous material compartment rapid ventilation structure of claim 3, wherein the rounded end of the first tapered ferrule and the rounded end of the second tapered ferrule are disposed opposite one another.
5. The rapid ventilation structure for the hazardous material cabin according to claim 2, wherein the radius R of the U-shaped bayonet is 0.5d +2 mm, and d is the major diameter of the screw thread of the stud on the circular ring-shaped base.
6. The rapid hazardous material compartment venting structure of claim 1, wherein the tapered conduit is equipped with a back-stop damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595728.8U CN210942213U (en) | 2019-09-24 | 2019-09-24 | Rapid ventilation structure for dangerous cargo cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595728.8U CN210942213U (en) | 2019-09-24 | 2019-09-24 | Rapid ventilation structure for dangerous cargo cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210942213U true CN210942213U (en) | 2020-07-07 |
Family
ID=71377960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921595728.8U Active CN210942213U (en) | 2019-09-24 | 2019-09-24 | Rapid ventilation structure for dangerous cargo cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210942213U (en) |
-
2019
- 2019-09-24 CN CN201921595728.8U patent/CN210942213U/en active Active
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