CN216383000U - Emergency separation device for offshore LNG (liquefied Natural gas) transfer - Google Patents
Emergency separation device for offshore LNG (liquefied Natural gas) transfer Download PDFInfo
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- CN216383000U CN216383000U CN202220562235.XU CN202220562235U CN216383000U CN 216383000 U CN216383000 U CN 216383000U CN 202220562235 U CN202220562235 U CN 202220562235U CN 216383000 U CN216383000 U CN 216383000U
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Abstract
The utility model relates to the technical field of marine equipment, in particular to an emergency separation device for offshore LNG (liquefied natural gas) conveying and transferring, which comprises a fixed end valve, a separation end valve, a driving mechanism and a transmission mechanism which are oppositely arranged, wherein valve driving wheels are respectively arranged at the tops of the fixed end valve and the separation end valve, the outer edge of the section of each valve driving wheel comprises an arc part, a straight part and a spiral part, a abdication hole is formed in the spiral part, the driving mechanism comprises a driving bracket and a driving hydraulic cylinder, the driving bracket is fixedly arranged on the fixed end valve, the driving hydraulic cylinder is fixedly arranged on the driving bracket, the transmission mechanism comprises a first guide rod, a transmission rod and a second guide rod, the first guide rod is connected with a piston rod of the driving hydraulic cylinder, and the side parts of the first guide rod and the second guide rod are respectively and fixedly provided with a driving rod extending into the abdication hole of the valve driving wheels. The device provided by the utility model has the advantages of simple structure, small occupied space, low operation cost, stability and reliability.
Description
Technical Field
The utility model relates to the technical field of marine equipment, in particular to an emergency separation device for offshore LNG (liquefied natural gas) transfer.
Background
In order to relieve the situations of large energy gap, serious air pollution problem and the like, the development and the use of natural gas are an important measure. Compared with natural gas imported through a pipeline, the offshore LNG import is more advantageous.
The LNG floating transfer system is a core device for transferring LNG between ships or ships and banks, wherein an ERS emergency separation device is a key device of the LNG floating transfer system. However, most of the existing conveying pipelines are shore-based discharging arms, the ERS emergency separation device is longitudinally arranged, the space requirement of a hoop connection opening mode is high, meanwhile, the opening mode of the ERS emergency separation device is pneumatic, and the opening starting is unstable; moreover, the longitudinally arranged ERS emergency separation device is not suitable for being installed with a transverse flange at a ship end, so that the design of the emergency separation device suitable for offshore transportation is particularly important, and the conventional driving system is generally a driving system corresponding to a valve, so that the mechanism is complex, the occupied space is large, and the operation cost is high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a stable and reliable emergency separation device for offshore LNG transportation and transfer, which has a simple structure, small occupied space and low operation cost.
The utility model is realized by the following technical scheme:
an emergency separation device for offshore LNG transportation and transfer, which comprises a fixed end valve and a separation end valve which are oppositely arranged, a driving mechanism and a transmission mechanism, the top parts of the fixed end valve and the separation end valve are respectively provided with a valve driving wheel, the outer edge of the section of the valve driving wheel comprises an arc part, linear parts connected with the two ends of the arc part and a spiral part connected between the end parts of the two linear parts, the spiral part is provided with a abdication hole, the driving mechanism comprises a driving bracket and a driving hydraulic cylinder, the driving bracket is fixedly arranged on the fixed end valve, the driving hydraulic cylinder is fixedly arranged on the driving bracket, the transmission mechanism comprises a first guide rod, a transmission rod and a second guide rod which are fixedly connected in sequence, the first guide rod is connected with a piston rod of the driving hydraulic cylinder, and the side parts of the first guide rod and the second guide rod are respectively and fixedly provided with a driving rod which extends into the yielding hole.
Preferably, the side parts of the first guide rod and the second guide rod are respectively fixedly provided with a connecting plate through bolts, and the driving rod is fixedly arranged on the lower surface of the connecting plate.
Furthermore, a connecting guide sleeve is arranged between the piston rod of the driving hydraulic cylinder and the first guide rod, the connecting guide sleeve is in threaded connection with the piston rod of the driving hydraulic cylinder, and the connecting guide sleeve is fixedly connected with the first guide rod through a bolt.
Optimally, the fixed end valve and the separated end valve are butted through the hoop mechanism.
Further, staple bolt mechanism includes staple bolt support and staple bolt body, staple bolt support fixed mounting is in stiff end valve bottom, and the hinge is equipped with the staple bolt connecting rod on the staple bolt support, and the staple bolt body hinge is adorned in the staple bolt epaxial of selling, the staple bolt is sold the epaxial middle part and is worn to be equipped with locking screw, waist type hole has been seted up at staple bolt connecting rod tip, the staple bolt connecting rod is connected and is spacing through the nut with locking screw in waist type hole department, and staple bolt body both ends top is fixed respectively and is equipped with the staple bolt connecting piece, and the last fixed stand that is equipped with of staple bolt connecting piece, first guide bar rear end fixed mounting has the staple bolt clamp splice, and the staple bolt splice is equipped with two arc draw-in grooves and blocks two stands.
Furthermore, an anchor ear ejecting block is slidably mounted on the transmission rod, and the anchor ear ejecting block and the anchor ear clamping block are fixedly connected through a snapping bolt.
The utility model has the advantages of
The emergency separation device for offshore LNG transfer provided by the utility model has the following advantages: the hydraulic drive mode is adopted, the structure is compact, and the hydraulic drive type heat insulation device has the advantages of heat insulation, stability, reliability and the like. The hydraulic device is fixed by a support, is installed stably, and the connecting rod is connected with the middle of the screw rod, so that the hoop fastening action is not influenced. The opening mode is the stretch-break opening mode in the emergency separation process, the transverse opening mode of the emergency separation device can be met, and the device is suitable for various places needing transverse arrangement, such as ships. Two butt-jointed valves are driven by a set of hydraulic driving device, so that the valves are closed in an emergency state and are subjected to emergency separation operation, the occupied space is small, the cost is low, the synchronism is good, and the operation is stable and reliable.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is an enlarged view of the top structure of the hoop mechanism;
FIG. 5 is a schematic view of a valve drive wheel configuration;
in the figure, 1-1 is a fixed end valve, 1-2 is a release end valve, 1-3 is a valve driving wheel, 1-4 is a abdicating hole, 2 is a driving mechanism, 2-1 is a driving bracket, 2-2 is a driving hydraulic cylinder, 3 is a transmission mechanism, 3-1 is a connecting guide sleeve, 3-2 is a first guide rod, 3-3 is a hoop clamping block, 3-4 is a hoop jacking block, 3-5 is a breaking bolt, 3-6 is a second guide rod, 3-7 is a transmission rod, 3-8 is a connecting plate, 3-9 is a driving rod, 3-10 is a driving wheel center, 3-11 is a driving rod end face center movement trajectory line, 4 is a hoop mechanism, 4-1 is a hoop support, 4-2 is a hoop connecting rod, 4-3 parts of locking screw, 4-4 parts of hoop pin shaft, 4-5 parts of hoop body, 4-6 parts of hoop connecting piece and 4-7 parts of upright post.
Detailed Description
The emergency separation device for offshore LNG transfer comprises a fixed end valve 1-1 and a separation end valve 1-2 which are oppositely arranged, a driving mechanism 2 and a transmission mechanism 3, wherein valve driving wheels 1-3 are respectively arranged at the tops of the fixed end valve and the separation end valve, and the valves can be closed emergently by driving the rotation of the valve driving wheels.
The valve driving wheel is characterized in that the outer edge of the cross section of the valve driving wheel comprises an arc part, straight line parts connected with two ends of the arc part and spiral line parts connected between the end parts of the two straight line parts, abdicating holes 1-4 are formed in the spiral line parts, the driving mechanism comprises a driving support 2-1 and a driving hydraulic cylinder 2-2, the driving support is fixedly installed on a fixed end valve, the driving hydraulic cylinder is fixedly installed on the driving support, a hydraulic device is fixed by the driving support, the installation is stable and reliable, a hydraulic driving mode is adopted, the structure is compact, the heat insulation performance is good, and the stability is strong.
The transmission mechanism comprises a first guide rod 3-2, a transmission rod 3-7 and a second guide rod 3-6 which are fixedly connected in sequence, the first guide rod is connected with a piston rod of the driving hydraulic cylinder, and the side parts of the first guide rod and the second guide rod are respectively and fixedly provided with a driving rod 3-9 extending into the abdicating hole of the valve driving wheel.
Through the design to valve drive wheel cross sectional shape, its outer edge includes the arc portion, with the straight line portion that the arc portion both ends are connected and connect the spiral portion between two straight line portion tip, the hole of stepping down has been seted up in spiral portion department, the valve is in the open mode, and when the system normally operated, the actuating lever card was in the valve drive wheel hole department of stepping down, spacing valve drive wheel. When meeting emergency and needing to close two valves fast, drive the hydraulic cylinder and retract, first guide bar and second guide bar drive the actuating lever backward motion, because the actuating lever card is in valve drive wheel abdication hole department, will drive stiff end valve and break away from the valve drive wheel on the end valve and rotate simultaneously, realize that stiff end valve and break away from the end valve and close back actuating lever and the valve drive wheel abdication hole simultaneously and break away from.
The driving rod is driven by the first guide rod and the second guide rod to move backwards, and the driving rod is initially positioned at the outer end of the abdicating hole of the valve driving wheel. Because the distance between the driving rod end surface center movement trajectory line 3-11 and the driving wheel center 3-10 is fixed and unchanged, and when the driving rod is initially positioned at the outer end of the valve driving wheel abdicating hole, the distance between the driving rod center line and the driving wheel center is greater than the distance between the driving rod end surface center movement trajectory line and the driving wheel center, during the backward movement of the driving rod, the driving rod moves inwards along the valve driving wheel abdicating hole and simultaneously drives the valve driving wheel to rotate, when the distance between the driving rod center line and the driving wheel center and the distance between the driving rod end surface center movement trajectory line and the driving wheel center are equal, the driving rod is positioned at the inner end of the valve driving wheel abdicating hole, and when the driving rod continues to move backwards, the distance between the driving rod center line and the driving wheel center is greater than the distance between the driving rod end surface center movement trajectory line and the driving wheel center, therefore, in the process that the driving rod moves backwards, the driving rod moves outwards along the abdicating hole of the valve driving wheel and simultaneously drives the valve driving wheel to rotate until the valve is closed, and the driving rod is separated from the abdicating hole of the valve driving wheel.
When the valve needs to be reset, the driving hydraulic cylinder extends out, the first guide rod and the second guide rod drive the driving rod to move forwards until the driving rod is clamped into the valve driving wheel abdicating hole, the driving hydraulic cylinder continues to act, the fixed end valve and the valve driving wheel on the separation end valve can be driven to rotate reversely at the same time, and the fixed end valve and the separation end valve can be opened at the same time.
Optimally, the connecting plates 3-8 are fixedly installed on the side portions of the first guide rod and the second guide rod respectively through bolts, the driving rods are fixedly installed on the lower surfaces of the connecting plates, the driving rods can be integrally formed with the connecting plates, and the driving rods can be assembled conveniently in a welding or bolt fixing mode.
Furthermore, a connecting guide sleeve 3-1 is arranged between the piston rod of the driving hydraulic cylinder and the first guide rod, the connecting guide sleeve is in threaded connection with the piston rod of the driving hydraulic cylinder, and the connecting guide sleeve is fixedly connected with the first guide rod through a bolt, so that the assembly is convenient.
Optimally, the fixed end valve and the separated end valve are butted through the hoop mechanism 4, and the hoop mechanism is used for sealing and clamping the connection part of the two valves, so that the stable conveying function of the valves can be ensured, and the functions of quick separation when an emergency situation occurs can be ensured.
Further, the hoop mechanism comprises a hoop support 4-1 and a hoop body 4-5, the hoop support is fixedly installed at the bottom of the fixed end valve, a hoop connecting rod 4-2 is hinged to the hoop support, the hoop body is hinged to a hoop pin shaft 4-4, a locking screw 4-3 penetrates through the middle of the hoop pin shaft, a waist-shaped hole is formed in the end portion of the hoop connecting rod, the hoop connecting rod is connected with the locking screw at the waist-shaped hole and limited through a nut, hoop connecting pieces 4-6 are fixedly arranged at the tops of two ends of the hoop body respectively, stand columns 4-7 are fixedly arranged on the hoop connecting pieces, hoop clamping blocks 3-3 are fixedly installed at the rear ends of the first guide rods, and the hoop clamping blocks are provided with two arc-shaped clamping grooves for clamping the two stand columns. The waist-shaped holes are convenient for the connection between the hoop connecting rod and the locking screw rod, and a certain moving space is reserved. The locking screw rod has both a connecting function and a limiting and locking function. The staple bolt support and the staple bolt connecting rod are arranged, so that the staple bolt mechanism enables the fixed end valve and the separated end valve to be connected together in a sealing and tight mode, the medium is convenient to convey, and the staple bolt mechanism is connected with the separated end valve without other parts except the staple bolt body part, when the snapping bolt is snapped, the staple bolt connecting rod can hook the staple bolt body part, and the staple bolt body part is prevented from falling into the sea.
And can be in the same place staple bolt body both ends card through the staple bolt clamp splice, realize the butt joint between two valves to staple bolt clamp splice and first guide bar rear end fixed connection, when the system was in operating condition, the staple bolt clamp splice can be firmly under the thrust effect of first guide bar block two stands, make the staple bolt upper end press from both sides tightly, realize the sealed butt joint between two valves. When emergency needs to rapidly close the two valves, the hydraulic cylinder is driven to retract, the hoop clamping block is driven by the first guide rod to move backwards, and the arc-shaped clamping groove and the stand column can be rapidly separated, so that the hoop is rapidly opened, and the two valves can be rapidly separated.
Furthermore, the hoop ejecting block 3-4 is slidably mounted on the transmission rod, the hoop ejecting block is fixedly connected with the hoop clamping block through the snapping bolt 3-5, one hoop ejecting block is fixedly connected with the hoop clamping block through the snapping bolt, when the system is in a working state, the two valves are more reliably butted, better sealing is realized, when emergency situations occur and the two valves need to be quickly closed, the hydraulic cylinder is driven to retract, the hoop clamping block is driven by the first guide rod to move backwards, the snapping bolt can be snapped, and therefore the hoop is quickly opened, and the two valves are quickly separated.
In conclusion, the emergency separation device for offshore LNG transfer is simple in structure, small in occupied space, low in operation cost, stable and reliable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an urgent disengaging gear that refutes is carried to marine LNG which characterized in that: include the stiff end valve to the dress and break away from end valve, actuating mechanism and drive mechanism, the stiff end valve with break away from end valve top and install the valve drive wheel respectively, the cross-section outer fringe of valve drive wheel includes arc portion, the straight line portion of being connected with arc portion both ends and connects the spiral portion between two straight line portion tip, spiral portion department has seted up the hole of stepping down, actuating mechanism includes driving support and actuating cylinder, driving support fixed mounting is on the stiff end valve, and actuating cylinder fixed mounting is on driving support, drive mechanism includes fixed connection's in proper order first guide bar, transfer line and second guide bar, first guide bar is connected with actuating cylinder's piston rod, and first guide bar and second guide bar lateral part fixed mounting respectively have and stretch into the downthehole actuating lever of stepping down.
2. The emergency release device for offshore LNG transfer and refuge of claim 1, wherein the first guide rod and the second guide rod are each provided with a connecting plate at a side portion thereof by means of a bolt, and the driving rod is fixedly arranged on a lower surface of the connecting plate.
3. The emergency release device for offshore LNG transfer and refund as claimed in claim 1, wherein a connection guide sleeve is installed between the piston rod of the driving hydraulic cylinder and the first guide rod, the connection guide sleeve is in threaded connection with the piston rod of the driving hydraulic cylinder, and the connection guide sleeve is fixedly connected with the first guide rod through a bolt.
4. The emergency release device for offshore LNG transfer and refuge of claim 1, wherein the fixed end valve and the release end valve are butted through a hoop mechanism.
5. The emergency separation device for offshore LNG transportation and transfer is as claimed in claim 4, wherein the hoop mechanism comprises a hoop support and a hoop body, the hoop support is fixedly mounted at the bottom of the fixed end valve, a hoop connecting rod is hinged to the hoop support, the hoop body is hinged to a hoop pin shaft, a locking screw is arranged in the middle of the hoop pin shaft in a penetrating mode, a waist-shaped hole is formed in the end portion of the hoop connecting rod, the hoop connecting rod is connected with the locking screw in the waist-shaped hole and is limited through a nut, hoop connecting pieces are fixedly arranged at the tops of two ends of the hoop body respectively, stand columns are fixedly arranged on the hoop connecting pieces, a hoop clamping block is fixedly mounted at the rear end of the first guide rod, and the hoop clamping block is provided with two arc-shaped clamping grooves for clamping the two stand columns.
6. The emergency release device for offshore LNG transfer and refute of claim 5, wherein the driving rod is slidably mounted with a hoop top block, and the hoop top block and the hoop clamping block are fixedly connected through a snapping bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220562235.XU CN216383000U (en) | 2022-03-16 | 2022-03-16 | Emergency separation device for offshore LNG (liquefied Natural gas) transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220562235.XU CN216383000U (en) | 2022-03-16 | 2022-03-16 | Emergency separation device for offshore LNG (liquefied Natural gas) transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216383000U true CN216383000U (en) | 2022-04-26 |
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ID=81238129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220562235.XU Active CN216383000U (en) | 2022-03-16 | 2022-03-16 | Emergency separation device for offshore LNG (liquefied Natural gas) transfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216383000U (en) |
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2022
- 2022-03-16 CN CN202220562235.XU patent/CN216383000U/en active Active
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