CN217978372U

CN217978372U - LNG ship lockage leaks explosion-proof equipment

Info

Publication number: CN217978372U
Application number: CN202221011936.0U
Authority: CN
Inventors: 胡军; 李少华
Original assignee: Wuhan Shipsion Electric Equipment Co ltd
Current assignee: Wuhan Shipsion Electric Equipment Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-12-06
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a LNG ship lockage leakage explosion-proof equipment, LNG ship lockage leakage explosion-proof equipment includes blast pipe, collection device and adjusting device, the blast pipe includes an air inlet pipe section and two air outlet pipe sections, the air outlet end of air inlet pipe section communicates the air inlet end of two air outlet pipe sections, the air inlet end of air inlet pipe section is used for covering on the relief valve of LNG storage tank; the collecting device comprises a box body, the box body is used for being installed on the LNG storage tank, an air inlet end is arranged on the box body, and the air inlet end of the box body is communicated with the air outlet end of any one air outlet pipe section and is used for collecting LNG; the adjusting device comprises two adjusting pieces which are respectively arranged in the pipe cavities of the two air outlet pipe sections and used for opening or blocking the pipe cavities of the corresponding air outlet pipe sections. The utility model discloses aim at solving the gaseous natural gas probably to leak the problem that leads to dangerous emergence when the LNG ship cross brake.

Description

LNG ship lockage leaks explosion-proof equipment

Technical Field

The utility model relates to a LNG ship technical field, concretely relates to LNG ship cross-brake leaks explosion-proof equipment.

Background

Now, for an LNG power ship, in normal use, due to the fact that a storage tank cannot be insulated absolutely, LNG in the storage tank can be partially gasified into gaseous natural gas, and when certain pressure is exceeded, the gaseous natural gas is discharged into the atmosphere. If a fault occurs, the associated valve is closed and the natural gas in the pipeline is also vented to atmosphere.

Because LNG has dangerous characteristics such as low temperature, easily fire, easily diffusion, once leakage takes place in semi-closed space such as ship lock, ship lift, can lead to serious consequences such as burning, explosion, cause very big harm to personnel's safety, ship lock structure etc..

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a LNG ship cross-brake leaks explosion-proof equipment, gaseous natural gas probably leaks the problem that leads to dangerous emergence when aiming at solving LNG ship cross-brake.

In order to achieve the above object, the utility model provides a LNG ship cross-brake leakage explosion-proof equipment, include:

the exhaust pipe comprises an air inlet pipe section and two air outlet pipe sections, the air outlet end of the air inlet pipe section is communicated with the air inlet ends of the two air outlet pipe sections, and the air inlet end of the air inlet pipe section is used for covering a pressure release valve of the LNG storage tank;

the collecting device comprises a box body, the box body is used for being installed on the LNG storage tank, an air inlet end is arranged on the box body, and the air inlet end of the box body is communicated with the air outlet end of any one air outlet pipe section and is used for collecting LNG; and the number of the first and second groups,

the adjusting device comprises two adjusting pieces which are respectively arranged in the tube cavities of the two air outlet tube sections and used for opening or blocking the tube cavities of the corresponding air outlet tube sections.

Optionally, the collecting device further comprises:

the butt joint pipe penetrates through the inner side and the outer side of the box body, and an air inlet of the butt joint pipe is communicated with the corresponding air outlet pipe section to form an air inlet end of the box body;

the collecting boxes are arranged in the box body in the front-back direction, each collecting box is provided with a pipe fitting, the pipe fittings penetrate through the inner side and the outer side of the corresponding collecting box, and each pipe fitting is communicated with the air outlet of the butt joint pipe and is arranged in the air outlet of the butt joint pipe in the front-back direction; and the number of the first and second groups,

the conducting piece comprises a partition board, the partition board is movably installed in the pipe cavity of the butt joint pipe in the front-back direction and blocks the pipe cavity of the butt joint pipe, the partition board penetrates through the pipe wall of the butt joint pipe and extends to the outer side of the butt joint pipe along the front-back direction, a communicating hole is formed in the partition board, and the communicating hole is communicated with any pipe fitting in the movement process of the partition board.

Optionally, a pressure detection piece is installed in each collecting box;

the switch-on piece further comprises a driving push rod, the driving push rod is installed in the box body, and the output end of the driving push rod is connected with the partition plate and used for driving the partition plate to move back and forth.

Optionally, each collecting box is detachably connected with the box body;

each pipe fitting all with the butt joint pipe with correspond the box can dismantle the connection.

Optionally, an air outlet is formed in the upper end of each collecting box, and a first pneumatic valve is installed at a position corresponding to the air outlet and can open or close the air outlet.

Optionally, a guiding exhaust pipe is detachably mounted on the outer side of each collecting box at a position corresponding to the exhaust port.

Optionally, a partition plate is slidably mounted in each collecting box in the left-right direction to divide the cavity of the collecting box into a first cavity and a second cavity which are arranged at left and right intervals, the pipe fitting is mounted corresponding to the first cavity, and the exhaust port is formed corresponding to the first cavity.

Optionally, a flow detection device is installed in the cavity of each air outlet pipe section.

Optionally, a gas leakage detection device is installed at the gas inlet end of the gas inlet pipe section, and the gas leakage detection device is used for detecting the LNG leakage at the joint of the gas inlet pipe section and the LNG storage tank.

The technical scheme of the utility model, in the in-process of LNG ship lockage, through the regulating part is opened corresponding intercommunication and is had the box the lumen and the shutoff of the pipeline section of giving vent to anger another the lumen of the pipeline section of giving vent to anger makes and only can be installed along corresponding through the gaseous natural gas of relief valve combustion gas can only discharge into in the pipeline section of giving vent to anger in the box to can be when LNG ship lockage, collect the gaseous natural gas that probably discharges out in the LNG storage tank, in order to prevent it from leaking the semi-closed environment that the ship was located, and lead to burning, explosion scheduling problem to appear.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of an LNG ship lockage leakage explosion-proof device provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the case of FIG. 1;

FIG. 3 is a schematic view of the collection tank of FIG. 1, partially in section;

fig. 4 is a schematic cross-sectional view of the exhaust pipe of fig. 1.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name (R)
				1	Exhaust pipe	301	Adjusting part
101	Air inlet pipe section	301a	Second pneumatic valve
				102	Air outlet pipe section	4	Pressure detecting piece
2	Collecting device	5	Exhaust port
				201	Box body	6	First pneumatic valve
202	Butt joint pipe	7	Guiding exhaust pipe
				203	Collecting box	8	Communicating hole
204	Pipe fitting	9	Partition board
				205	Conducting part	10	The first chamber
205a	Partition board		11					Second chamber
				205b	Driving push rod	12	Flow rate detection device
3	Adjusting device	13	Gas leakage detection device

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear \8230;) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In view of this, the utility model provides a LNG ship lockage leaks explosion-proof equipment, and fig. 1 to fig. 4 are an embodiment of the utility model.

Referring to fig. 1, 2 and 4, the LNG ship lockage leakage explosion-proof device includes an exhaust pipe 1, a collecting device 2 and a regulating device 3, where the exhaust pipe 1 includes an air inlet pipe segment 101 and two air outlet pipe segments 102, an air outlet end of the air inlet pipe segment 101 is communicated with air inlet ends of the two air outlet pipe segments 102, and an air inlet end of the air inlet pipe segment 101 is used to cover a pressure relief valve of an LNG storage tank; the collecting device 2 comprises a box body 201, the box body 201 is used for being installed on an LNG storage tank, an air inlet end is arranged on the box body 201, and the air inlet end of the box body 201 is communicated with the air outlet end of any one air outlet pipe section 102 and is used for collecting LNG; the adjusting device 3 comprises two adjusting pieces 301 which are respectively installed in the lumens of the two gas outlet pipe sections 102 and used for opening or closing the lumens of the corresponding gas outlet pipe sections 102.

The technical scheme of the utility model, at the in-process of LNG ship lockage, through regulating part 301 is opened corresponding intercommunication and is had box 201 the lumen and the shutoff of the pipeline section 102 of giving vent to anger another the lumen of pipeline section 102 of giving vent to anger makes the gaseous natural gas through the relief valve combustion gas can only be installed along corresponding box 201 arrange in the pipeline section 102 of giving vent to anger into in the box 201 to can be when LNG ship lockage, collect the gaseous natural gas that probably discharges out in the LNG storage tank to in the semi-closed environment that the ship was located is leaked to it, and lead to burning, explosion scheduling problem to appear.

It can be understood that when the ship is not in the semi-closed lockage environment, the gas outlet pipe segment 102 connected with the box 201 can be sealed off, and the other gas outlet pipe segment 102 is opened, so that the gas natural gas can be directly discharged into the air, and because the ship is in the open environment at this time, the discharged gas natural gas does not generate the risks of burning, explosion and the like.

In addition, since the interior of the tank 201 is used for storing gaseous natural gas, that is, the tank 201 is a closed tank design, in fig. 1, for the convenience of seeing the internal environment of the tank 201, the upper end of the tank 1 is open.

Further, the collecting device 2 further comprises a butt joint pipe 202, a plurality of collecting boxes 203 and a conducting piece 205, the butt joint pipe 202 penetrates through the inside and outside of the box 201, and an air inlet of the butt joint pipe 202 is communicated with the corresponding air outlet pipe section 102 to form an air inlet end of the box 201; the collecting boxes 203 are arranged in the box body 201 in the front-back direction, a pipe 204 is arranged on each collecting box 203, the pipe 204 penetrates through the inner side and the outer side of the corresponding collecting box 203, and each pipe 204 is communicated with the air outlet of the butt joint pipe 202 and is arranged in the front-back direction at the air outlet of the butt joint pipe 202; the communicating member 205 includes a partition plate 205a, the partition plate 205a is movably installed in the lumen of the opposite joint pipe 202 in the front-back direction and seals the lumen of the opposite joint pipe 202, two ends of the partition plate 205a in the front-back direction penetrate through the pipe wall of the opposite joint pipe 202 and extend to the outer side of the opposite joint pipe 202, and a communicating hole 8 is formed in the partition plate 205a for communicating the communicating hole 8 with any pipe 204 during the movement of the partition plate 205 a.

Wherein the box 201 is communicated with the corresponding outlet pipe segment 102 through the butt joint pipe 202, one end of the butt joint pipe 202 located in the box 201 is arranged in a closed manner, so that each pipe 204 correspondingly installed in each collecting box 203 penetrates through the closed end thereof to be capable of communicating with the butt joint pipe 202, and can be kept sealed and firmly with the butt joint pipe 202, furthermore, the butt joint pipe 202 is arranged in a rectangular manner at the closed end of the box 201, so that the butt joint pipe 202 can be always kept separated into two independent pipe cavity regions spaced from front to back in the moving process of the partition 205a, and the communication hole 8 is arranged on the butt joint pipe 202, and the end surface of the partition 205a can abut against the inlets of the other pipe elements 204 when the partition 205a is communicated with any pipe element 204 in the moving process of the partition 205a, so that natural gas can only enter the corresponding collecting box 203 from the pipe elements 204 communicated with the communication hole 8, and thus the collected gaseous natural gas can be separately stored in the same container, and the danger of gaseous natural gas occurring due to excessive storage in the same container can be avoided.

Specifically, a pressure detection piece 4 is installed in each collection box 203; the conducting member 205 further includes a driving push rod 205b, the driving push rod 205b is installed in the box 201, and an output end of the driving push rod 205b is connected to the partition 205a to drive the partition 205a to move back and forth. By providing the pressure detecting member 4 in each of the collecting tanks 203, when the pressure detecting member 4 in one of the collecting tanks 203 detects that the internal gas pressure thereof reaches a saturation value, the partition plate 205a is driven to move by the driving push rod 205b, so that the communication hole 8 in the partition plate 205a communicates with the other pipe 204, and gas is collected in the other collecting tank 203, that is, the position of the partition plate 205a is automatically adjusted by detecting the internal gas pressure in each of the collecting tanks 203.

Still further, in the present application, each collecting box 203 is detachably connected to the box 201; each of the pipe members 204 is detachably connected to the butt pipe 202 and the corresponding box 201. Through setting up the collecting box 203 with the box 201 can be dismantled and be connected, can be to the collecting box 203 quick replacement, wherein, the collecting box 203 with can dismantle the form of being connected between the box 201 and do not do the restriction, can be the joint, also can be through the bolt connection, through being provided with the pipe fitting 204 with can dismantle the connection with butt joint pipe 202 and the box 201 that corresponds, thereby also can be to the pipe fitting 204 carries out quick replacement, wherein, the pipe fitting 204 with can dismantle the form of being connected between butt joint pipe 202 and the box 201 that corresponds does not do the restriction, can be the joint, also can be through threaded connection etc..

Referring to fig. 1 and 3, an exhaust port 5 is opened at an upper end of each collecting box 203, and a first pneumatic valve 6 is installed at a position corresponding to the exhaust port 5, wherein the first pneumatic valve 6 can open or close the exhaust port 5. The exhaust port 5 is opened at the upper end of each collecting tank 203, so that after the ship is out of the brake and reaches a safety zone, the exhaust port 5 is opened, the opening amount of the exhaust port 5 is limited through the first pneumatic valve 6, the exhaust speed of the gaseous natural gas is limited, the exhaust concentration of the gaseous natural gas in the air reaches a specified range, and the natural gas stored in the collecting tanks 203 is gradually emptied. In addition, the box 201 is further provided with an opening for communicating the plurality of exhaust ports 5, so that the gaseous natural gas can be normally discharged.

Further, a guide exhaust pipe 7 is detachably mounted to the outer side of each of the collection tanks 203 at a position corresponding to the exhaust port 5. The exhaust guide pipe 7 is arranged to guide the gaseous natural gas to the high position of the ship when the gaseous natural gas is discharged, and the gaseous natural gas is discharged at the high position of the ship and then does not gather at the peripheral side of the ship, so that the discharge risk is reduced; the detachable connection between the guiding and exhausting pipe 7 and the corresponding collecting box 203 is not limited, and may be a screw connection or a clamping connection, and the length thereof may be set according to actual requirements.

Referring to fig. 2, a partition plate 9 is slidably installed in each collecting box 203 along the left-right direction to divide the chamber of the collecting box 203 into a first chamber 10 and a second chamber 11 arranged at left-right intervals, the pipe 204 is installed corresponding to the first chamber 10, and the exhaust port 5 is opened corresponding to the first chamber 10. By slidably mounting the isolation plate 9 in the collection box 203, when the collection box 203 is in a non-air-intake state, the first cavity 10 is in a vacuum state, and a certain amount of air is filled into the second cavity 11 to make the first cavity 10 have a certain air pressure, when gaseous natural gas is introduced into the first cavity 10, the isolation plate 9 is pushed to move towards the second cavity 11, and the corresponding air in the second cavity 11 is compressed, and after the gaseous natural gas in the first cavity 10 is exhausted, the isolation plate 205a returns under the action of the air pressure in the second cavity 11, so as to achieve an automatic resetting effect.

Referring to fig. 4, each of the adjusting members 301 includes a second pneumatic valve 301a, and the second pneumatic valve 301a is installed in a lumen of the corresponding outlet pipe segment 102. By providing the second pneumatic valve 301a, the opening or closing of the lumen of the outlet pipe segment 102 can be remotely controlled to select the discharge of the gaseous natural gas discharged through the pressure relief valve into the air or into the tank 201.

Further, a flow detection device 12 is installed in the cavity of each outlet pipe segment 102. By providing the flow detection device 12, flow detection can be performed on the gaseous natural gas discharged from the pressure release valve.

Still further, a gas leakage detection device 13 is installed at the gas inlet end of the gas inlet pipe section 101, and the gas leakage detection device 13 is used for detecting the LNG leakage at the connection position of the gas inlet pipe section 101 and the LNG storage tank. By providing the gas leakage detection device 13, it is possible to detect whether the gas natural gas leaks into the air without passing through the exhaust pipe 1.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. The utility model provides a LNG ship lockage leakage explosion-proof equipment which characterized in that includes:

2. The LNG ship lock-leakage explosion protection device according to claim 1, wherein the collecting means further comprises:

3. The LNG ship lockage leakage explosion-proof device of claim 2, wherein a pressure detecting member is installed in each of the collection tanks;

the conduction piece further comprises a driving push rod, the driving push rod is installed in the box body, and the output end of the driving push rod is connected with the partition plate and used for driving the partition plate to move back and forth.

4. The LNG ship lockage leakage explosion protection device according to claim 2, wherein each of the collection tanks is detachably connected to the tank body;

5. The LNG ship lockage leakage explosion-proof device of claim 2, wherein the upper end of each collecting tank is opened with an exhaust port, and a first pneumatic valve is installed at a position corresponding to the exhaust port, and the first pneumatic valve can open or close the exhaust port.

6. The LNG ship lockage leakage explosion-proof device of claim 5, wherein a guide exhaust pipe is detachably mounted to the outside of each collection tank at a position corresponding to the exhaust port.

7. The LNG carrier lockage leakage explosion-proof device of claim 5, wherein a separation plate is arranged in each collection box in a left-right sliding manner so as to separate the chamber of the collection box into a first chamber and a second chamber which are arranged at intervals left and right, the pipe fitting is arranged corresponding to the first chamber, and the exhaust port is opened corresponding to the first chamber.

8. The LNG ship lockage leakage explosion protection device of claim 1, wherein each of the regulators comprises a second pneumatic valve installed in a cavity of the corresponding outlet pipe section.

9. The LNG ship lockage leakage explosion protection device of claim 1, wherein a flow detection device is installed in the pipe cavity of each outlet pipe section.

10. The LNG carrier lockage leakage explosion-proof device of claim 1, wherein a gas leakage detection device is installed at the gas inlet end of the gas inlet pipe section, and the gas leakage detection device is used for LNG leakage detection at the connection position of the gas inlet pipe section and the LNG storage tank.