Protection device for unloading hose

Abstract

The utility model relates to the technical field of LNG (liquefied natural gas), and particularly discloses a protection device for an unloading hose, which comprises a box body for supporting the unloading hose, a sealing mechanism arranged in the box body and in sliding fit with the box body, and a diffusing pipeline communicated with the interior of the sealing mechanism, and one end of the unloading hose extends into the box body and is connected with the sealing mechanism. According to the LNG unloading device, impurities or insects and the like can be effectively prevented from entering the unloading hose, so that the purity of LNG is influenced, meanwhile, LNG remaining in the unloading hose can be effectively collected, and waste and safety accidents are avoided; the structure is simple and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of LNG, and more specifically to a protective device for a truck unloading hose. Background Art

[0002] In the prior art, during the unloading process of the LNG tanker, an unloading hose is required as an auxiliary pipeline for connection. After the actual unloading is completed on site, the flange of the unloading hose is not sealed;

[0003] During the second unloading, impurities such as debris or insects that affect the purity of LNG may appear inside the unloading hose. In addition, after unloading is completed, some LNG will remain in the distance from the unloading port to the flange port where the unloading hose connects to the tank truck, causing waste and on-site danger. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a protective device for an unloading hose, which can effectively prevent debris or insects from entering the unloading hose, thereby affecting the purity of LNG, and can also effectively collect the LNG gas remaining in the unloading hose to avoid waste and safety accidents.

[0005] The solution adopted by the utility model to solve the technical problem is:

[0006] A protective device for an unloading hose comprises a box body for supporting the unloading hose, a closing mechanism arranged in the box body and slidingly matched with the box body, and a venting pipeline connected to the inside of the closing mechanism; one end of the unloading hose extends into the box body and is connected to the closing mechanism.

[0007] After unloading is completed, the free end of the unloading hose is closed by a sealing mechanism, and the LNG gas remaining in the unloading hose is collected through the release management; the sealing of the free end of the unloading hose will prevent impurities, insects, etc. from entering the interior when it is not in use, thereby preventing impurities, insects, etc. from affecting the purity of the LNG gas when it is used next time; after unloading is completed, the LNG gas remaining in the unloading hose is collected through the release pipeline and collected in the release tower to avoid waste and safety accidents caused by the residual LNG gas;

[0008] In some possible implementations, in order to effectively seal the free end of the unloading hose;

[0009] The closing mechanism comprises a flange assembly installed in the box body and connected to one end of the unloading hose extending into the box body, and a linear drive assembly connected to the side of the flange assembly away from the unloading hose and controlling the flange assembly to move linearly toward or away from the unloading hose.

[0010] In some possible implementations, in order to connect the sealing mechanism to the venting pipeline to collect the residual gas remaining in the unloading pipeline;

[0011] The flange assembly includes a disc body connected to one end of the unloading hose extending into the box body, and a connecting pipe coaxially arranged with the disc body and used to connect the disc body and the linear drive assembly;

[0012] The connecting pipe is provided with a through hole connected with the venting pipeline.

[0013] In some possible implementations, in order to effectively support the end of the unloading hose extending into the box body and the disc body, so that the two can be docked;

[0014] It also includes a support member for supporting the disc body and the end of the unloading hose extending into the box body.

[0015] In some possible implementations,

[0016] The top surface of the support is provided with a V-shaped slide groove; the disc body and the end of the unloading hose extending into the box body are coaxially arranged and located in the V-shaped slide groove.

[0017] In some possible implementations, in order to effectively achieve the connection between the unloading hose and the closing mechanism;

[0018] A flange connected to the disc body is arranged at one end of the unloading hose extending into the box body; the flange is installed on the V-shaped slide groove.

[0019] In some possible implementations, an installation cavity for installing a closing mechanism, a support member, and a venting pipeline is provided on the box body; the top of the installation cavity has an opening;

[0020] A U-shaped slot is provided on a side of the box body which is parallel to the disc body and located on a side of the disc body away from the linear drive assembly;

[0021] One end of the unloading hose passes through the U-shaped slot and extends into the installation cavity and is connected with the disc body.

[0022] In some possible implementations, a cover plate for closing the opening is further provided on the box body.

[0023] In some possible implementations, in order to effectively achieve the connection between the venting pipeline and the connecting pipe;

[0024] The venting pipeline comprises a main pipe installed in the installation cavity and with one end located outside the box body, and a branch pipe connected to the main pipe at one end and connected to the connecting pipe through a through hole at the other end.

[0025] In some possible implementations, the sealing mechanisms are multiple groups and are arranged in one-to-one correspondence with the unloading hoses.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The utility model can effectively seal the unloading hose by setting a sealing mechanism, so as to prevent impurities and insects from entering the unloading hose when not in use, and the purity of the gas will be affected due to the presence of impurities and / or insects when it is used next time;

[0028] The utility model is provided with a venting pipeline connected with the connecting pipe in the closing mechanism, so that after the unloading hose is closed, the residual gas in the unloading hose can be collected and aggregated, thereby avoiding waste and installation accidents;

[0029] The utility model has a simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an axial view of the utility model;

[0031] Figure 2 This is a structural schematic diagram of the unloading hose, the closing mechanism, and the supporting block in the utility model;

[0032] Figure 3 for Figure 2 A top view of

[0033] Figure 4 for Figure 2 Side view of

[0034] Figure 5 It is a structural schematic diagram of the closing mechanism in the utility model;

[0035] Among them: 10, unloading hose; 1, box body; 11, installation cavity; 2, closing mechanism; 21, flange assembly; 211, disk body; 212, connecting pipe; 2121, through hole; 22, linear drive assembly; 3, discharge pipeline; 31, main pipe; 32, branch pipe; 4, support; 41, V-shaped slide; 5, cover plate. DETAILED DESCRIPTION

[0036] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0037] The utility model is described in detail below.

[0038] like Figure 1-Figure 5 As shown:

[0039] A protective device for an unloading hose 10 includes a box body 1 for supporting the unloading hose 10, a closing mechanism 2 disposed in the box body 1 and slidably matched with the box body 1, and a venting pipeline 3 connected to the inside of the closing mechanism 2; one end of the unloading hose 10 extends into the box body 1 and is connected to the closing mechanism 2.

[0040] After unloading is completed, the free end of the unloading hose 10 is closed by the closing mechanism 2, and the LNG gas remaining in the unloading hose 10 is collected through the venting pipe 3; the closure of the free end of the unloading hose 10 will prevent impurities, insects, etc. from entering the interior when it is not in use, thereby preventing impurities, insects, etc. from affecting the purity of the LNG gas when it is used next time; after unloading is completed, the LNG gas remaining in the unloading hose 10 is collected through the venting pipe 3 and collected in the venting tower, so as to avoid waste and safety accidents caused by the residual LNG gas;

[0041] In some possible implementations, in order to effectively seal the free end of the unloading hose 10;

[0042] The closing mechanism 2 includes a flange assembly 21 installed in the box body 1 and connected to one end of the unloading hose 10 extending into the box body 1, and a linear drive assembly 22 connected to the side of the flange assembly 21 away from the unloading hose 10 and controlling the flange assembly 21 to make a linear movement toward or away from the side of the unloading hose 10.

[0043] The linear drive assembly 22 is mainly used to drive the flange assembly 21 to connect with one end of the unloading hose 10 extending into the box body 1, so as to effectively close the free end of the unloading hose 10 after unloading is completed;

[0044] The linear drive assembly 22 can be implemented by a mechanism capable of realizing linear drive in the prior art, such as a linear drive cylinder, an electric push rod, a linear drive oil cylinder, etc.;

[0045] Preferably, the linear drive assembly 22 is a linear drive cylinder, and its power source is station purge or instrument air gas.

[0046] In some possible implementations, in order to connect the closing mechanism 2 with the venting pipeline 3 to realize the collection of the residual gas remaining in the unloading hose 10;

[0047] like Figure 3 , Figure 5 As shown, the flange assembly 21 includes a disc body 211 connected to one end of the unloading hose 10 extending into the box body 1, and a connecting pipe 212 coaxially arranged with the disc body 211 and used to connect the disc body 211 and the linear drive assembly 22; one end of the connecting pipe 212 away from the disc body 211 is connected to the linear drive assembly 22 and is closed by the linear drive assembly 22; the connecting pipe 212 is coaxially arranged with the disc body 211;

[0048] like Figure 3 , Figure 5 As shown, a through hole 2121 connected to the venting pipeline 3 is provided on the connecting pipe 212; a through hole is provided on the disc body 211 along its axial direction, the through hole is communicated with the unloading hose 10 and connected to the inside of the connecting pipe 212, and the through hole 2121 is provided on the side of the connecting pipe 212 and communicated with the inside thereof, and this arrangement enables the unloading hose 10 to be communicated with the connecting pipe 212, thereby realizing the collection and aggregation of residual gas in the unloading hose 10;

[0049] In some possible implementations, in order to effectively support the end of the unloading hose 10 extending into the box body 1 and the disc body 211, so that the two can be connected;

[0050] like Figure 1 As shown, it also includes a support member 4 for supporting the disc body 211 and the unloading hose 10 extending into one end of the box body 1.

[0051] like Figure 2 , Figure 3 , Figure 4As shown, the top surface of the support member 4 is provided with a V-shaped groove 41, and the disc body 211 is slidably mounted on the V-shaped groove 41. The V-shaped groove 41 can effectively guide the movement of the disc body 211; the disc body 211 is coaxially arranged with the end of the unloading hose 10 extending into the box body 1 and is located in the V-shaped groove;

[0052] When closing, the linear drive assembly 22 drives the disc body 211 to move in the V-shaped slide groove 41 and move toward the side of the unloading hose 10; otherwise, the two are separated;

[0053] After the unloading hose 10 is connected to the closing mechanism 2 , the disc body 211 and the end of the unloading hose 10 extending into the box body 1 will be located in the V-shaped slide groove 41 and connected to each other.

[0054] In some possible implementations, in order to effectively achieve the connection between the unloading hose 10 and the closing mechanism 2;

[0055] like Figure 3 As shown, a flange 101 connected to the disc body 211 is provided at one end of the unloading hose 10 extending into the box body 1; the flange 101 is installed on the V-shaped slide groove 41; the connection with the flange 101 is achieved by controlling the movement of the disc body 211, thereby achieving the closure of the unloading hose 10;

[0056] The flange 101 and the disc body 211 are both supported by the support member 4 and are located on the V-shaped chute 41. The two have the same structure shape and size and can be connected by bolts. After the connection, the flange 101 will be closed, and the L residual gas in the unloading hose 10 will be transported to the release pipeline 3 through the connecting pipe 212, and then collected to the release tower.

[0057] The disk body 211 and the flange 101 will always be located on the V-shaped slide groove 41 and supported by the support block 4. The V-shaped slide groove 41 enables the linear drive assembly 22 to guide the movement of the disk body 211.

[0058] In some possible implementations, such as Figure 1 As shown, the box body 1 is provided with an installation cavity 11 for installing the closing mechanism 2, the support member 4, and the release pipeline 3; the top of the installation cavity 11 has an opening;

[0059] A U-shaped slot 12 is provided on the side of the box body 1 which is parallel to the disk body 211 and is located on the side of the disk body 211 away from the linear drive assembly 22;

[0060] One end of the unloading hose 10 passes through the U-shaped slot 12 and extends into the installation cavity 11 and is coaxially connected to the disk body 211;

[0061] The U-shaped groove 12 is used to clamp the outer side of the unloading hose 10 to prevent the unloading hose 10 from moving;

[0062] The box body 1 is also provided with a cover plate 5 for closing the opening.

[0063] In some possible implementations, in order to effectively achieve the connection between the venting pipeline 3 and the connecting pipe 212;

[0064] like Figure 3 As shown, the release pipeline 3 includes a main pipe 31 installed in the installation cavity 11 and one end of which is located outside the box body 1, and a branch pipe 32 connected to the main pipe 31 at one end and connected to the connecting pipe 212 through a through hole 2121 at the other end;

[0065] One end of the main pipe 31 passes through the box 1 and is connected to the discharge tower through a pipeline; one end of the branch pipe 32 is connected to the main pipe 31, and the other end thereof is connected to the connecting pipe 212;

[0066] The branch pipe 32 is a soft tube, so when the connecting pipe 212 moves, the branch pipe 32 also moves with it, and the branch pipe 32 will not be damaged;

[0067] In some possible implementations, the sealing mechanism 2 and the U-shaped slot 12 are both provided in multiple groups and are arranged in one-to-one correspondence with the unloading hoses 10 .

[0068] like Figure 1 As shown, the unloading hoses 10 are in three groups, the corresponding closing mechanisms 2, U-shaped slots 12 and branch pipes 32 are in three groups, and the main pipe 31 is in one group.

[0069] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A protective device for a truck unloading hose, characterized in that: It comprises a box body for supporting a car unloading hose, a closing mechanism arranged in the box body and slidingly matched with the box body, and a venting pipeline connected with the inside of the closing mechanism; one end of the car unloading hose extends into the box body and is connected with the closing mechanism.

2. A protective device for a vehicle unloading hose according to claim 1, characterized in that: The closing mechanism comprises a flange assembly installed in the box body and connected to one end of the unloading hose extending into the box body, and a linear drive assembly connected to the side of the flange assembly away from the unloading hose and controlling the flange assembly to move linearly toward or away from the unloading hose.

3. A protective device for a vehicle unloading hose according to claim 2, characterized in that: The flange assembly includes a disc body connected to one end of the unloading hose extending into the box body, and a connecting pipe coaxially arranged with the disc body and used to connect the disc body and the linear drive assembly; The connecting pipe is provided with a through hole connected with the venting pipeline.

4. A protective device for a vehicle unloading hose according to claim 3, characterized in that: It also includes a support member for supporting the disc body and the end of the unloading hose extending into the box body.

5. A protective device for a vehicle unloading hose according to claim 4, characterized in that: The top surface of the support is provided with a V-shaped slide groove; the disc body and the end of the unloading hose extending into the box body are coaxially arranged and located in the V-shaped slide groove.

6. A protective device for a vehicle unloading hose according to claim 5, characterized in that: A flange connected to the disc body is arranged at one end of the unloading hose extending into the box body; the flange is located on the V-shaped slide groove.

7. The protective device for a vehicle unloading hose according to claim 3, characterized in that: The box body is provided with an installation cavity for installing a closing mechanism, a supporting member, and a venting pipeline; the top of the installation cavity has an opening; A U-shaped slot is provided on a side of the box body which is parallel to the disc body and located on a side of the disc body away from the linear drive assembly; One end of the unloading hose passes through the U-shaped slot and extends into the installation cavity and is connected with the disc body.

8. The protective device for a vehicle unloading hose according to claim 7, characterized in that: The box body is also provided with a cover plate for closing the opening.

9. A protective device for a vehicle unloading hose according to any one of claims 1 to 8, characterized in that: The venting pipeline comprises a main pipe installed in the installation cavity and with one end located outside the box body, and a branch pipe connected to the main pipe at one end and connected to the connecting pipe through a through hole at the other end.

10. A protective device for a vehicle unloading hose according to claim 9, characterized in that: The sealing mechanisms are multiple groups and are arranged one by one corresponding to the unloading hoses.

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