LNG tank car unloading LNG storage tank connecting sealing device

Abstract

The utility model discloses a LNG tank car unloading LNG storage tank connection sealing device relates to pipeline connection device field, including the tubular body one, the tubular body one is connected with LNG storage tank, and the tubular body two can be connected with LNG tank car, and the tubular body two is the pipeline for connecting, the tubular body one and the flange plate one of tubular body one end portion setting and the flange plate two of tubular body two and tubular body two end portion setting swing installation, and the flange plate one and the flange plate two position are opposite, the end of flange plate two is fixedly connected with the screw ring. The utility model under the initial state, under the elastic force of reset spring makes the block complete adhesion passageway, like this guarantee tubular body one is completely in the closed state, avoids some impurities or dust to enter the inside of tubular body one and influences the use of natural gas in the inside of storage tank, and when tubular body two is twisted, after tubular body two is completely matched with tubular body one, the top block of tubular body two inside installation lifts the block, and then makes passageway open, and the transmission of natural gas is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connecting device field, concretely relates to LNG tank car unloading LNG storage tank connecting sealing device. BACKGROUND

[0002] LNG tank car is mainly used for transporting liquefied natural gas, and plays an important role in the land transportation of LNG, and the LNG storage tank is a liquefied natural gas storage tank, which is a device specially used for storing liquefied natural gas, and the LNG storage tank can ensure the safety in the storage and use process under the condition of extremely low temperature, and the pipeline needs to be used to connect the tank car and the storage tank when transporting and unloading the natural gas in the tank car to the inside of the storage tank.

[0003] The existing connecting device still has the following problems when in use: the pipelines for connection are mostly connected by multiple screws in the prior art, and the single screw needs to be twisted when the screw is twisted, which greatly increases the time for pipeline connection and leads to low working efficiency.

[0004] Therefore, it is necessary to provide the LNG tank car unloading LNG storage tank connecting sealing device to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing LNG tank car unloading LNG storage tank connecting sealing device to solve the problem of low working efficiency caused by the pipeline connection time greatly increased due to the pipelines for connection being mostly connected by multiple screws in the prior art and the single screw needing to be twisted when the screw is twisted.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: LNG tank car unloading LNG storage tank connection sealing device, including pipe body one, pipe body one is connected with LNG storage tank, pipe body two can be connected with LNG tank car, pipe body two is the pipeline for connection, pipe body one and the flange disc one that pipe body one end part sets and pipe body two and the flange disc two that pipe body two end part sets are movably installed, and the position of flange disc one and flange disc two is opposite, the end of flange disc two is fixedly connected with the thread ring, and the thread ring and the thread installation groove that the inside of flange disc one sets are screw connection, the installation of pipe body one and pipe body two is convenient for realizing the screw connection type, guarantees the compactness of installation, the inner wall of flange disc two is fixedly connected with the top block through connecting rod one, the inside of flange disc one is provided with passageway, and the inner wall of passageway movably installs the plug, and the end of plug is fixedly connected with the mounting ring through connecting rod two, the mounting ring is movably arranged in the movable channel of the inner wall of pipe body one, and the inner wall of movable channel is fixedly connected with the light rod, the mounting ring is movably sleeved on the outer ring of light rod and is movably connected with movable channel through reset spring, the plug is opened by the movement of top block against plug, and then the transmission of natural gas is realized.

[0007] Preferably, the flange disc one and the flange disc two are fixedly installed with a sealing rubber ring at the butt joint, so as to ensure the tightness of the connection between the two pipes.

[0008] Preferably, the top block is in the shape of a sharp cone, and the tip of the top block is located at a lower position on the top of the thread ring. In this way, when the thread ring is screwed into the thread installation groove, the top block will not push open the plug until the thread ring moves a certain distance inside the thread installation groove. This ensures that foreign matter cannot enter the inside of the storage tank through the pipe body one.

[0009] Preferably, the passageway and the plug are both in the shape of a circular truncated cone, and the inner wall of the passageway and the outer wall of the plug are fitted together. Silicon gel is attached to the inner wall of the passageway and the outer wall of the plug. This facilitates the opening of the plug by the moving top block, ensures the sealing of the connection between the plug and the passageway during the reset movement of the plug, and prevents foreign matter from entering the inside of the pipe body one.

[0010] Preferably, the movable channel is in the shape of a circular ring, and the inner wall of the movable channel and the annular outer wall of the mounting ring are fitted together and are connected in a sliding manner. This ensures the movement of the plug.

[0011] Preferably, the reset spring is movably sleeved on the outer ring of the light rod, and the upper and lower ends of the reset spring are fixedly connected with the mounting ring and the inner wall of the movable channel, respectively. Under the action of the reset spring, the plug can automatically reset after movement.

[0012] In the above technical scheme, the utility model provides the following technical effects and advantages:

[0013] 1. In the initial state, the elastic force of the reset spring makes the block completely fit the channel opening, which ensures that the pipe body is completely in a closed state, avoids some impurities or dust from entering the inside of the pipe body, and affects the use of natural gas in the inside of the storage tank, and when the pipe body two is twisted, the top block installed in the inside of the pipe body two lifts the block, and then the channel opening is opened, facilitating the transmission of natural gas;

[0014] 2. By abutting flange plate one and flange plate two, twisting the pipe body two makes the threaded ring fixedly connected to the end of flange plate two and the threaded mounting groove arranged in the inside of flange plate one achieve threaded connection, and then the matching installation of the two pipe bodies is completed, and it is ensured that natural gas will not leak when being unloaded. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the technical personnel in the art better understand the technical scheme of the present application, the following will be further introduced in detail with reference to the drawings.

[0016] Figure 1 It is the overall structure perspective view of the present application;

[0017] Figure 2 It is the pipe body one and pipe body two connection structure explosion view of the present application;

[0018] Figure 3 It is the pipe body one and pipe body two (partially cut state) internal connection structure perspective view of the present application;

[0019] Figure 4 It is the pipe body one and pipe body two (partially cut state) internal connection structure perspective view of the present application; Figure 3 It is the structure enlarged effect schematic view of the present application;

[0020] Figure 5 It is the pipe body one internal structure perspective view of the present application when the block is lifted;

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1. Pipe body one; 101. Flange plate one; 2. Pipe body two; 201. Flange plate two; 3. Threaded ring; 4. Threaded mounting groove; 5. Connecting rod one; 6. Top block; 7. Channel opening; 8. Block; 9. Connecting rod two; 10. Mounting ring; 11. Movable groove; 12. Polished rod; 13. Reset spring. DETAILED DESCRIPTION

[0023] In order to make the technical personnel in the art better understand the technical scheme of the present application, the following will be further introduced in detail with reference to the drawings.

[0024] The utility model provides a LNG tank car unloading LNG storage tank connection sealing device as shown Figures 1-5 The utility model discloses a LNG tank car unloading LNG storage tank connection sealing device, including the tubular body one 1, the tubular body one 1 is connected with LNG storage tank, the tubular body two 2 can be connected with LNG tank car, the tubular body two 2 is the pipeline for connecting, the tubular body one 1 and the flange plate one 101 set up at tubular body one 1 end and the flange plate two 201 set up at tubular body two 2 end and the tubular body two 2 are movably installed, and the flange plate one 101 and the flange plate two 201 position are opposite, the end of flange plate two 201 is fixedly connected with the screw ring 3, and the screw ring 3 and the screw thread installation groove 4 set up in the inside of flange plate one 101 present screw connection, the installation of tubular body one 1 and tubular body two 2 is conveniently realized screw thread connection type, guarantees the compactness of installation, the inner wall of flange plate two 201 is fixedly connected with the top block 6 through connecting rod one 5, the inside of flange plate one 101 is provided with passageway 7, and the inner wall of passageway 7 movably installs the block 8, and the end of block 8 is fixedly connected with the mounting ring 10 through connecting rod two 9, and the mounting ring 10 is movably installed in the inside of the movable channel 11 that the inner wall of tubular body one 1 sets up, and the inner wall of movable channel 11 is fixedly connected with the light rod 12, and the mounting ring 10 is movably installed in the outer ring of light rod 12 and is movably connected with movable channel 11 through reset spring 13, and the top block 6 moves and presses against block 8 and can open passageway 7, and then the transmission of natural gas is realized.

[0025] The flange plate one 101 and the flange plate two 201 are movably installed in the tubular body one 1 and the tubular body two 2, and the sealing rubber ring is movably installed in the flange plate one 101 and the flange plate two 201, and the sealing rubber ring is movably installed in the flange plate one 101 and the flange plate two 201.

[0026] The top block 6 is in the shape of a sharp cone, and the tip of the top block 6 is located at the lower position of the top of the screw ring 3. In this way, when the screw ring 3 and the screw thread installation groove 4 are screw-connected, the top block 6 will only push open the block 8 after the screw ring 3 moves a distance in the screw thread installation groove 4 by twisting the screw ring 3. This completely ensures that foreign matter cannot enter the inside of the storage tank through the tubular body one 1.

[0027] The passageway 7 and the block 8 are both in the shape of a circular truncated cone, and the inner wall of the passageway 7 and the outer wall of the block 8 are fitted together. The inner wall of the passageway 7 and the outer wall of the block 8 are both provided with a silica gel sticker. This facilitates the block 8 being pushed open by the top block 6 in a moving state. When the block 8 is reset, the sealing performance of the block 8 and the passageway 7 is ensured, and foreign matter is prevented from entering the inside of the tubular body one 1.

[0028] The movable channel 11 is in the shape of a circular ring, and the inner wall of the movable channel 11 and the annular outer wall of the mounting ring 10 are fitted together and movably connected in an up-down manner. This is used to ensure the movement of the block 8.

[0029] The reset spring 13 is movably sleeved on the outer ring of the polished rod 12, and the upper and lower ends of the reset spring 13 are fixedly connected with the mounting ring 10 and the inner wall of the movable channel 11 respectively, and under the action force of the reset spring 13, the plug 8 can automatically reset after movement.

[0030] Working principle: when the LNG tank connection sealing device is used in the LNG tank truck unloading, firstly, in the initial state, the elastic force of the reset spring 13 makes the plug 8 completely fit the channel port 7, so that the pipe body one 1 is completely in a closed state, avoiding some impurities or dust from entering the inside of the pipe body one 1 to affect the use of natural gas in the inside of the tank, the pipe body one 1 is connected with the pipe body two 2, the flange plate one 101 is butt-jointed with the flange plate two 201, the threaded ring 3 fixedly connected with the end of the flange plate two 201 is screw-connected with the threaded mounting groove 4 arranged in the inside of the flange plate one 101, and then the matching installation of the two pipe bodies is completed, so that the natural gas unloading cannot occur external leakage, and when the pipe body two 2 is twisted, the top block 6 arranged in the inside of the pipe body two 2 lifts the plug 8, and then the channel port 7 is opened, so that the natural gas transmission is facilitated, and the tip of the top block 6 is located at the lower position of the top of the threaded ring 3, so that when the threaded ring 3 is screw-connected with the threaded mounting groove 4, the top block 6 will lift the plug 8 only after the threaded ring 3 moves a distance in the inside of the threaded mounting groove 4, so that it is completely ensured that the impurities outside cannot enter the inside of the tank through the pipe body one 1.

[0031] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for ordinary skilled in the art. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection of the present application.

Claims

1. A LNG tank connecting sealing device for LNG tank car unloading, comprising a pipe body one (1), characterized in that, The pipe body one (1) is connected with the LNG storage tank, the pipe body two (2) can be connected with the LNG tank car, the pipe body one (1) and the flange plate one (101) arranged at the end of the pipe body one (1) are movably installed with the pipe body two (2) and the flange plate two (201) arranged at the end of the pipe body two (2), and the flange plate one (101) and the flange plate two (201) are opposite, the end of the flange plate two (201) is fixedly connected with the thread ring (3), and the thread ring (3) is in threaded connection with the threaded installation groove (4) arranged in the flange plate one (101), the inner wall of the flange plate two (201) is fixedly connected with the top block (6) through the connecting rod one (5), the inside of the flange plate one (101) is provided with the channel opening (7), the inner wall of the channel opening (7) is movably installed with the plug block (8), and the end of the plug block (8) is fixedly connected with the mounting ring (10) through the connecting rod two (9), the mounting ring (10) is movably arranged in the movable groove (11) arranged on the inner wall of the pipe body one (1), the inner wall of the movable groove (11) is fixedly connected with the light rod (12), the mounting ring (10) is movably sleeved on the outer circle of the light rod (12) and is movably connected with the movable groove (11) through the reset spring (13).

2. The LNG tank connection sealing device for LNG tank car unloading according to claim 1, characterized by, The flange plate one (101) and the flange plate two (201) are movably connected.

3. The LNG tank connection sealing device for LNG tank car unloading according to claim 1, characterized by, The top block (6) is in the shape of a sharp cone, and the tip of the top block (6) is located at the lower position of the top of the thread ring (3).

4. The LNG tank connection sealing device for LNG tank car unloading according to claim 1, characterized by, The channel opening (7) and the plug block (8) are both in the shape of a circular truncated cone, the inner wall of the channel opening (7) and the outer wall of the plug block (8) are fitted, and the inner wall of the channel opening (7) and the outer wall of the plug block (8) are both provided with silica gel.

5. The LNG tank connection sealing device for LNG tank car unloading according to claim 1, characterized by, The movable groove (11) is in the shape of a circular ring, and the inner wall of the movable groove (11) and the annular outer wall of the mounting ring (10) are fitted and movably connected.

6. The LNG tank connection sealing device for LNG tank car unloading according to claim 1, characterized by, The reset spring (13) is movably sleeved on the outer circle of the light rod (12), and the upper and lower ends of the reset spring (13) are fixedly connected with the inner wall of the mounting ring (10) and the movable groove (11) respectively.

Images