CN112393110A - Low-temperature heat-insulating container with guide mechanism - Google Patents
Low-temperature heat-insulating container with guide mechanism Download PDFInfo
- Publication number
- CN112393110A CN112393110A CN202011406826.XA CN202011406826A CN112393110A CN 112393110 A CN112393110 A CN 112393110A CN 202011406826 A CN202011406826 A CN 202011406826A CN 112393110 A CN112393110 A CN 112393110A
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- China
- Prior art keywords
- container
- guide
- pipe
- liquid inlet
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a low-temperature heat-insulating container with a guide mechanism, which comprises an outer container and an inner container, wherein the top of the inner container is provided with a cryogenic medium input port, the top of the outer container is provided with an opening which is right opposite to the cryogenic medium input port, the cryogenic medium input port is provided with a neck pipe which extends out of the opening of the outer container, the inner container is internally provided with the guide mechanism which guides a liquid inlet and outlet pipe to extend to the center of the bottom of the inner container, the guide mechanism is provided with a guide piece, the guide piece is provided with a guide hole, the hole wall of the guide hole is provided with a guide inclined surface which is matched with the lower end part of the liquid inlet and outlet pipe. The invention is characterized in that the center of the bottom of the container is provided with a guide part, the guide part is provided with a guide hole, the hole wall of the guide hole is provided with a guide inclined plane matched with the lower end part of the liquid inlet and outlet pipe, and the liquid inlet and outlet pipe can easily slide into the guide part under the action of the guide inclined plane to play a role in guiding.
Description
Technical Field
The invention relates to a low-temperature heat-insulating container, in particular to a low-temperature heat-insulating container with a guide mechanism.
Background
At present, the equipment used for storing cryogenic medium at home and abroad is mainly a vacuum low-temperature heat-insulating container with a guide mechanism, the container mainly comprises an inner container and an outer container, a heat-insulating interlayer is arranged between the inner container and the outer container, the heat-insulating interlayer is usually vacuumized, and the inner container and the outer container are usually fixed through a supporting system. Because the low-temperature heat-insulating container is a sealed container without a manhole, people cannot reach the lower part of the container, the stainless steel connecting pipe is difficult to accurately place at a specified position, and the bottom contact phenomenon is difficult to avoid sometimes, so that the lower end of the liquid inlet and outlet pipe is deformed.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a low-temperature heat-insulating container with a guide mechanism, which is reasonable in design and has good limiting and guiding functions.
In order to achieve the purpose, the invention adopts the following technical scheme:
the low-temperature heat-insulating container with the guide mechanism comprises an outer container and an inner container, wherein a heat insulating layer is sleeved outside the inner container, a deep cooling medium input port is formed in the top of the inner container, an opening opposite to the deep cooling medium input port is formed in the top of the outer container, a neck pipe extending out of the opening of the outer container is arranged at the deep cooling medium input port, the low-temperature heat-insulating container is characterized in that the inner container is internally provided with the guide mechanism for guiding a liquid inlet/outlet pipe to extend to the center of the bottom of the inner container, the guide mechanism is provided with a guide piece, a guide hole is formed in the guide piece, the hole wall of the guide hole is provided with a guide inclined surface matched with the.
The technical problem to be solved by the invention can also be solved by the following technical scheme that the guide piece is a guide cover which is arranged in a conical manner with a large upper part and a small lower part.
The technical problem to be solved by the invention can be realized by the following technical scheme that a hoisting device is arranged at the opening of the outer container.
The technical problem to be solved by the invention can be realized by adopting the following technical scheme that the hoisting device comprises a base and a hoisting ring, wherein the hoisting ring is arranged on the base, a sealing ring which is in sealing fit with an opening of the outer container is sleeved outside the base, a welding plate for connecting the base and the outer container is arranged above the sealing ring, a pipe hole which is in threaded connection with a neck pipe of the inner container is arranged in the center of the base, and a sealing ring which is in fit with the pipe wall of the liquid inlet/outlet pipe is arranged.
The technical problem to be solved by the invention can also be realized by the following technical scheme that the sealing ring is at least provided with two sealing gaskets matched with the pipe walls of the liquid inlet and outlet pipes, the sealing gaskets are provided with positioning grooves fixed at the pipe holes, and the sealing gaskets are arranged side by side along the axial lines of the liquid inlet and outlet pipes.
The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that the sealing ring is provided with a ring body, the outer wall of the ring body is provided with a clamping groove clamped on the edge of the opening of the outer container, the upper groove wall of the clamping groove is provided with upper sealing teeth matched with the outer surface of the outer container, the lower groove wall of the clamping groove is provided with lower sealing teeth matched with the inner surface of the outer container, the upper sealing teeth and the lower sealing teeth are respectively composed of convex teeth with two different heights, and the convex teeth with the two different heights.
The technical problem to be solved by the invention can also be realized by the following technical scheme that the welding plate is an annular plate, and the cross section of the annular plate is arranged in an S shape.
The technical problem to be solved by the invention can also be realized by the following technical scheme that a limiting plate matched with the bottom end of the liquid inlet and outlet pipe is arranged on the bent plate below the guide piece, one side of the limiting plate is arranged on the bent plate through a hinged shaft, a torsional spring is arranged on the hinged shaft, a buffer mechanism is arranged on the other side of the limiting plate, and a liquid inlet and outlet hole is arranged on the limiting plate.
The technical problem to be solved by the invention can be realized by the following technical scheme that the outer container consists of an outer cylinder body with an opening at the bottom and a closed top and a bottom plate with a closed bottom opening, and the outer cylinder body is connected with the bottom plate in a sealing way.
The technical problem to be solved by the invention can also be realized by the following technical scheme that an overflow pipe and a spray pipe are also inserted in the pipe hole.
Compared with the prior art, the invention has the following advantages:
according to the invention, the guide piece is arranged at the center of the bottom of the container, the guide hole is formed in the guide piece, the hole wall of the guide hole is provided with the guide inclined plane matched with the lower end part of the liquid inlet/outlet pipe, and the liquid inlet/outlet pipe can easily slide into the guide piece under the action of the guide inclined plane to play a role in guiding; in addition, set up the limiting plate, effectively avoid advancing the emergence that drain pipe touched the end phenomenon.
Drawings
FIG. 1 is a block diagram of a cryogenic insulation container according to the present invention;
FIG. 2 is a structural view of the guide mechanism of the present invention;
FIG. 3 is a structural view of the hoist;
FIG. 4 is a view showing the structure of a seal ring;
fig. 5 is a structural view of the seal ring.
In the figure: 1-outer cylinder, 2-heat insulation layer, 3-inner container, 4-bottom plate, 5-eccentric rod, 6-supporting plate, 7-supporting frame, 8-supporting rod, 9-bent plate, 10-guiding piece, 11-liquid inlet and outlet pipe, 12-hoisting device, 13-overflow pipe, 14-spraying pipe, 15-base, 16-sealing ring, 17-pipe hole, 18-neck pipe, 19-welding plate, 20-clamping groove, 21-upper sealing tooth, 22-lower sealing tooth, 23-limiting plate, 24-liquid inlet and outlet hole, 25-buffer mechanism, 26-positioning groove and 27-sealing piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a low-temperature heat-insulating container with a guiding mechanism comprises an outer container and an inner container 3, wherein a heat-insulating layer 2 is sleeved outside the inner container 3, a deep cooling medium input port is arranged at the top of the inner container 3, an opening opposite to the deep cooling medium input port is arranged at the top of the outer container, a neck tube 18 extending out from the opening of the outer container is arranged at the deep cooling medium input port, a guiding mechanism for guiding a liquid inlet and outlet pipe 10 to extend to the center of the bottom of the inner container 3 is arranged in the inner container 3, the guiding mechanism is provided with a guiding piece 9, a guiding hole is arranged on the guiding piece 9, the hole wall of the guiding hole is provided with a guiding inclined surface matched with the lower end part of the liquid inlet and outlet pipe, the guiding piece 9 is fixed at the center of the bottom of the container; the outer container consists of an outer cylinder body 1 with an opening at the bottom and a closed top and a bottom plate 4 with a closed bottom opening, wherein the outer cylinder body 1 is connected with the bottom plate 4 in a sealing way.
Hoisting device includes base 15 and rings, and rings dress is on base 15, and base 15 overcoat has and outer container 1 opening seal complex sealing ring 16, and sealing ring 16 top is equipped with connection base 15 and outer container 1's welded plate, and base 15 center is equipped with the tube hole 17 that meets with the 3 neck-tubes 18 screw threads of inner container, and tube hole 17 department is equipped with and passes in and out 10 pipe wall complex sealing washers of liquid pipe, the sealing washer is for being equipped with two at least and pass in and out the seal ring of liquid pipe wall cooperation gasket, is equipped with the constant head tank 26 of fixing in pipe hole department on the seal ring, and gasket 27 sets up side by side along the axis of passing in and.
The sealing ring 16 is provided with a ring body 19 with certain elasticity, preferably a rubber ring body, the outer wall of the ring body 19 is provided with a clamping groove 20 clamped on the edge of an opening of the outer container, the upper groove wall of the clamping groove 20 is provided with an upper sealing tooth 21 matched with the outer surface of the outer container, the lower groove wall of the clamping groove 20 is provided with a lower sealing tooth 21 matched with the inner surface of the outer container, the upper sealing tooth 21 and the lower sealing tooth 22 are both composed of two convex teeth with different heights, the convex teeth with two different heights are arranged at intervals, wherein the height of one convex tooth is larger than the distance between the groove wall and the outer container, the height of the other convex tooth is smaller than the distance between the groove wall and the outer container, the specific height of the convex teeth; the welding plate is the annular plate, and the transversal S-shaped setting of personally submitting of annular plate avoids the sealing ring to influence the welding effect between welding plate and the outer container, simultaneously, also can avoid the welding plate to destroy the structure of sealing ring and influence sealed effect in welding process.
A limiting plate 23 matched with the bottom end of the liquid inlet and outlet pipe 10 is arranged on the bent plate 20 below the guide member 9, one side of the limiting plate 23 is arranged on the bent plate 20 through a hinged shaft, the other side of the limiting plate 23 is provided with a buffer mechanism 25, a torsional spring convenient for resetting the limiting plate is arranged on the hinged shaft, a liquid inlet and outlet hole 24 is arranged on the limiting plate 23, the bottom contact phenomenon of the liquid inlet and outlet pipe 10 is prevented, the buffer mechanism can adopt an elastic member such as a rubber block or a spring, the length of the limiting plate 23 is greater than the distance between the limiting plate 23 and the bottom of the inner container 3, when the bottom end of the liquid inlet and outlet pipe 10 contacts the limiting plate 23, the buffer mechanism of the limiting plate 23 is pressed to;
an overflow pipe 13 and a spray pipe 14 are inserted in the pipe hole 17, the upper end of the overflow pipe 13 is flush with the liquid inlet and outlet pipe 10, and the lengths of the overflow pipe 13 and the spray pipe 14 are smaller than those of the liquid inlet and outlet pipe 10.
The center of the bottom of the inner container 3 is provided with a supporting rod 8, the bottom of the outer container is provided with an anti-eccentricity device of the inner container 3, the anti-eccentricity device comprises a supporting frame 7 fixed at the bottom of the outer container and an eccentric rod 5 supporting the inner container 3, the supporting frame 7 is provided with inserting holes of the eccentric rod 5 and the supporting rod 8, the inserting holes are provided with heat-insulating sleeves in expansion fit with the eccentric rod 5 or the supporting rod 8, the tops of the eccentric rod 5 and the supporting rod 8 are respectively fixed with a backing plate 6 matched with the bottom of the inner container 3, the backing plate 6 is welded with the inner container, the backing plate 6 is welded with the eccentric rod 5 and the supporting rod 8, and the.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a low temperature heat-insulating container with guiding mechanism, includes outer container and inner container, the inner container overcoat is equipped with the heat insulation layer, and the inner container top is equipped with cryrogenic medium input port, and the outer container top is equipped with the opening to cryrogenic medium input port, and cryrogenic medium input port department is equipped with the neck pipe that stretches out from outer container opening part, its characterized in that: the inner container is internally provided with a guide mechanism for guiding the liquid inlet and outlet pipe to extend to the center of the bottom of the inner container, the guide mechanism is provided with a guide piece, the guide piece is provided with a guide hole, the hole wall of the guide hole is provided with a guide inclined plane matched with the lower end part of the liquid inlet and outlet pipe, the guide piece is fixed at the center of the bottom of the container through a bent plate, and a liquid inlet and outlet space is arranged between the guide piece and the bottom of the container.
2. The cryogenic insulation container with a guide mechanism according to claim 1, wherein the guide member is a guide hood which is provided in a tapered shape having a large upper portion and a small lower portion.
3. The cryogenic insulation vessel with guide mechanism of claim 1 wherein the opening of the outer vessel is provided with a lifting device.
4. The container of claim 3, wherein the lifting device comprises a base and a lifting ring, the lifting ring is mounted on the base, a sealing ring which is in sealing fit with the opening of the outer container is sleeved outside the base, a welding plate which is used for connecting the base and the outer container is arranged above the sealing ring, a pipe hole which is in threaded connection with the neck pipe of the inner container is arranged in the center of the base, and a sealing ring which is in fit with the pipe wall of the liquid inlet/outlet pipe is arranged at the pipe hole.
5. The container of claim 4, wherein the sealing rings are at least two sealing rings that fit the walls of the liquid inlet and outlet pipes, the sealing rings are arranged side by side along the axis of the liquid inlet and outlet pipes, and the sealing rings have positioning grooves fixed at the pipe holes.
6. The low-temperature heat-insulating container with the guide mechanism as claimed in claim 4, wherein the sealing ring is provided with a ring body, a clamping groove clamped on the opening edge of the outer container is arranged on the outer wall of the ring body, an upper sealing tooth matched with the outer surface of the outer container is arranged on the upper groove wall of the clamping groove, a lower sealing tooth matched with the inner surface of the outer container is arranged on the lower groove wall of the clamping groove, the upper sealing tooth and the lower sealing tooth are respectively composed of convex teeth with two different heights, and the convex teeth with the two different heights are arranged at intervals.
7. The container of claim 1, wherein the curved plate below the guide member has a limiting plate engaged with the bottom of the liquid inlet/outlet pipe, one side of the limiting plate is mounted on the curved plate through a hinge, a torsion spring is mounted on the hinge, the other side of the limiting plate has a buffer mechanism, and the limiting plate has liquid inlet/outlet holes.
8. The cryoinsulating container with guide mechanism of claim 1, wherein said outer container comprises an open-bottomed outer cylinder and a closed-topped bottom plate, said outer cylinder being sealingly engaged with said bottom plate.
9. The cryogenic insulation vessel with the guide means according to claim 1, wherein an overflow pipe and a shower pipe are further inserted at the pipe hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406826.XA CN112393110B (en) | 2020-12-04 | 2020-12-04 | Low-temperature heat-insulating container with guide mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406826.XA CN112393110B (en) | 2020-12-04 | 2020-12-04 | Low-temperature heat-insulating container with guide mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112393110A true CN112393110A (en) | 2021-02-23 |
| CN112393110B CN112393110B (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011406826.XA Active CN112393110B (en) | 2020-12-04 | 2020-12-04 | Low-temperature heat-insulating container with guide mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112393110B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172224A (en) * | 1997-03-06 | 1998-02-04 | 陶妙金 | Automatic treating device for liquefied gas raffinate |
| US20100163565A1 (en) * | 2006-03-29 | 2010-07-01 | Seiichi Matsuoka | Pressure-Resistant Container |
| CN102338279A (en) * | 2010-07-22 | 2012-02-01 | 兰州蓝亚石油化工装备工程有限公司 | Manhole structure of inner container and outer container of low-temperature heat-insulation container |
| CN102635776A (en) * | 2012-04-18 | 2012-08-15 | 宁波明欣化工机械有限责任公司 | High-integrated insulated deep-freezing container |
| CN202392436U (en) * | 2011-12-14 | 2012-08-22 | 浙江金象科技有限公司 | Limiting frame for pressure container liquid phase pipe |
| DE102012022537A1 (en) * | 2012-11-16 | 2014-06-05 | Mt Aerospace Ag | Locking arrangement for fiber-reinforced plastic container for sealing opening in container, has form element which is adapted in shape and size to opening and is formed of weldable plastic |
| CN104421612A (en) * | 2013-08-21 | 2015-03-18 | 丁琦亮 | Flexible fixing apparatus of liquid outlet pipe of liquefied gas storage tank |
| CN108253283A (en) * | 2016-12-29 | 2018-07-06 | 青岛市三维铸造厂 | Natural gas storing device with ring type seal |
-
2020
- 2020-12-04 CN CN202011406826.XA patent/CN112393110B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172224A (en) * | 1997-03-06 | 1998-02-04 | 陶妙金 | Automatic treating device for liquefied gas raffinate |
| US20100163565A1 (en) * | 2006-03-29 | 2010-07-01 | Seiichi Matsuoka | Pressure-Resistant Container |
| CN102338279A (en) * | 2010-07-22 | 2012-02-01 | 兰州蓝亚石油化工装备工程有限公司 | Manhole structure of inner container and outer container of low-temperature heat-insulation container |
| CN202392436U (en) * | 2011-12-14 | 2012-08-22 | 浙江金象科技有限公司 | Limiting frame for pressure container liquid phase pipe |
| CN102635776A (en) * | 2012-04-18 | 2012-08-15 | 宁波明欣化工机械有限责任公司 | High-integrated insulated deep-freezing container |
| DE102012022537A1 (en) * | 2012-11-16 | 2014-06-05 | Mt Aerospace Ag | Locking arrangement for fiber-reinforced plastic container for sealing opening in container, has form element which is adapted in shape and size to opening and is formed of weldable plastic |
| CN104421612A (en) * | 2013-08-21 | 2015-03-18 | 丁琦亮 | Flexible fixing apparatus of liquid outlet pipe of liquefied gas storage tank |
| CN108253283A (en) * | 2016-12-29 | 2018-07-06 | 青岛市三维铸造厂 | Natural gas storing device with ring type seal |
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| Publication number | Publication date |
|---|---|
| CN112393110B (en) | 2022-03-15 |
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