WO2021008609A1

WO2021008609A1 - Concentrated discharging device, gas phase pipeline arrangement structure, and tank-type container

Info

Publication number: WO2021008609A1
Application number: PCT/CN2020/102707
Authority: WO
Inventors: 李永莉; 何远新; 吕长乐; 杨清义
Original assignee: 中车长江车辆有限公司
Priority date: 2019-07-18
Filing date: 2020-07-17
Publication date: 2021-01-21

Abstract

Disclosed are a concentrated discharging device, a gas phase pipeline arrangement structure, and a tank-type container. The concentrated discharging device comprises two first pipelines (4), two second pipelines (5), and a third pipeline (6), wherein the two first pipelines (4) are arranged opposite each other, the central axes of the two first pipelines (4) are located on a first straight line, each of the two first pipelines (4) is provided with at least one first input port (7), the central axis of the third pipeline (6) is located on a second straight line, the second straight line and the first straight line are located on the same plane, the third pipeline (6) is provided with an output port (8), and two ends of the third pipeline (6) are in communication with opposite ends of the two first pipelines (4) by means of the second pipelines (5) respectively. The concentrated discharging device enables all system safety valves (11) to be connected to a diffusion pipeline (12), such that the connection and assembly of the gas phase pipeline arrangement structure can be simplified, and the purposes of reducing the pipeline assembly difficulty and improving the assembly efficiency are achieved.

Description

Centralized discharge device, gas-phase pipeline arrangement structure and tank container

Cross references to related applications

This application claims the priority of the Chinese patent application filed on July 18, 2019, the application number is 201910649492.X and the title is "Centralized discharge device, gas-phase pipeline arrangement structure and tank container", and in July 2019 The priority of the Chinese patent application filed on the 18th with application number 201921137991.2 and titled "Centralized Discharge Device and Gas-phase Pipeline Arrangement", the entire content of which is incorporated herein by reference.

Technical field

The present disclosure belongs to the technical field of tank transportation, and in particular relates to a centralized discharge device, a gas-phase pipeline arrangement structure, and a tank container.

Background technique

Tank containers (referred to as "tanks") can be used to load chemical raw materials, food and other media. Generally, a gas-phase pipeline arrangement structure is set on the tank container to ensure the safety of the tank container during transportation and storage.

Fig. 1 is a schematic diagram of a gas-phase pipeline arrangement structure in the prior art. With reference to Figure 1, the prior art gas pipeline arrangement structure usually includes a plurality of system safety valves 1; the outlet of each system safety valve 1 is correspondingly connected with an elbow 2; the outlet of each system safety valve 1 passes through the corresponding The elbow 2 is in communication with the diffuser pipe 3. After the tank container is filled with medium, when an accident occurs during transportation or storage, the system safety valve is opened, and the leaked medium is discharged into the release pipe through the elbow, thereby ensuring the safety of the tank container during transportation and storage .

The applicant found that there are at least the following problems in the prior art: In the prior art, the outlet of each system safety valve is communicated with the relief pipe 3 through a corresponding elbow 2, and the elbow 2 is connected to the system safety valve 1 and the relief pipe. The connection of 3 is mostly using three-way or elbow, and most of them are welded connections, which results in a more complicated structure and many connection welds, which will easily lead to large welding deformations. In addition, due to space constraints, it is easy to cause difficulty in pipeline assembly and low assembly efficiency.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the present disclosure provides a centralized discharge device, a gas-phase pipeline arrangement structure, and a tank container to reduce the difficulty of pipeline assembly and improve assembly efficiency.

In one aspect of the present disclosure, a centralized discharge device is provided, which may include: two first pipelines, two second pipelines, and one third pipeline; wherein, the two first pipelines They can be arranged oppositely, and the central axes of the two first pipelines can be located on the first straight line; at least one first input port can be provided on the two first pipelines; the third pipeline The central axis of the third pipeline may be located on the second straight line; the second straight line and the first straight line may be located on the same plane; the third pipeline may be provided with an output port; the two third pipelines The ends may be respectively communicated with the opposite ends of the two first pipelines through the second pipeline.

In some embodiments, the second straight line and the first straight line may be arranged in parallel.

In some embodiments, one end of one of the two first pipelines facing away from the other first pipeline may be provided with a second input port, and the second input port may Used to connect with the discharge pipeline of the pipeline safety valve.

In another aspect of the present disclosure, a gas-phase pipeline arrangement structure is provided, which may include: a gas-phase pipeline, a system safety valve, the centralized discharge device, and a vent pipeline; wherein, one end of the gas-phase pipeline It can be used to connect with the tank; the inlets of multiple system safety valves can be communicated with the other end of the gas phase pipeline; the first input port of the centralized discharge device can correspond to the system safety valve one to one The outlet of the system safety valve and the corresponding first input port can be connected; the output port of the centralized discharge device can be connected to the relief pipeline.

In some embodiments, the other end of the gas phase pipeline and the first pipeline may be arranged in parallel; a plurality of the system safety valves may be arranged in parallel, and a plurality of the system safety valves may be arranged in the gas phase. Between the other end of the pipeline and the first pipeline.

In some embodiments, the arrangement structure may further include a fourth pipeline; the fourth pipeline may be arranged in parallel between the other end of the gas pipeline and the first pipeline, and a plurality of the systems The safety valve may be installed on the fourth pipeline; the fourth pipeline may communicate with the other end of the gas phase pipeline through a switching valve.

In some embodiments, one end of the gas phase pipeline and the venting pipeline may also be connected by a fifth pipeline, and a venting valve may be provided on the fifth pipeline.

In some embodiments, a water drain valve may also be provided on the relief pipeline.

In yet another aspect of the present disclosure, a tank container is provided, which may include: a tank body and the gas-phase pipeline arrangement structure; wherein one end of the gas-phase pipeline may be connected to the circumference of the tank body.

In some embodiments, the tank container may further include a loading and unloading pipeline, a pressurizing pipeline, an overflow pipeline, and a differential pressure pipeline; wherein the loading and unloading pipeline, the gas phase pipeline, and the booster pipeline The same end of the pressure pipeline, the overflow pipeline, and the differential pressure pipeline can all be connected to the circumference of the tank through a pipeline gasket, and the loading and unloading pipeline, the gas phase pipeline The pressure-increasing pipeline, the overflow pipeline, and the differential pressure pipeline may be arranged on the outer side of the circumference of the tank in a direction away from the tank in order.

The beneficial effects of the present disclosure include at least the following:

The centralized discharge device provided by the present disclosure includes two first pipelines, two second pipelines, and one third pipeline; wherein the two first pipelines are arranged opposite to each other, and the two first pipelines The central axis of the pipeline is located on the first straight line; the two first pipelines are each provided with at least one first input port; the central axis of the third pipeline is located on the second straight line; The two straight lines and the first straight line are on the same plane; the third pipeline is provided with an output port; both ends of the third pipeline pass through the second pipeline and the two first pipes respectively The opposite end of the road is connected; that is, the centralized discharge device integrates at least two first input ports, which reduces the number of parts, thereby reducing the welding deformation and welding workload between the parts, and reducing the pipe Road assembly is difficult, and assembly efficiency is improved.

The tank container provided by the present disclosure may include: a tank body and the gas-phase pipeline arrangement structure; one end of the gas-phase pipeline may be connected to the circumferential surface of the tank body. The tank container provided by the present invention adopts the gas-phase pipeline arrangement structure, wherein one end of the gas-phase pipeline can be used to connect with the tank, and the inlets of multiple system safety valves are all connected to the other end of the gas-phase pipeline The centralized discharge device is provided with multiple first input ports and one output port, and the first input port and the system safety valve are arranged in one-to-one correspondence; the outlet of the system safety valve is connected to the corresponding first input port, and the output port and The relief pipeline is connected. In actual use, when an accident occurs during transportation or storage, the system safety valve will open, so that the leaked medium will be discharged into the release pipe through a centralized discharge device, thus ensuring the safety of tank container transportation and storage .

The present disclosure adopts a centralized discharge device to connect the safety valves of each system to the venting pipe, thereby simplifying the connection and assembly of the gas-phase pipeline arrangement structure, thereby achieving the purpose of reducing pipeline assembly difficulty and improving assembly efficiency.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of a gas-phase pipeline arrangement structure in the prior art;

2 is a schematic structural diagram of an example of a centralized discharge device according to an embodiment of the present disclosure;

3 is a schematic structural diagram of an example of a gas-phase pipeline arrangement structure with the centralized discharge device shown in FIG. 2;

Figure 4 is a schematic rear view of Figure 3; and

Fig. 5 is a schematic diagram of the overall structure of a tank container according to an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

In one aspect of the present disclosure, a centralized discharge device is provided.

Fig. 2 is a schematic structural diagram of a centralized discharge device according to an embodiment of the present disclosure. With reference to FIG. 2, the centralized discharge device may include two first pipelines 4, two second pipelines 5 and one third pipeline 6.

With reference to Figure 2, in some embodiments of the present disclosure, the two first pipelines 4 may be arranged opposite to each other, and the central axis of the two first pipelines 4 may be located on the first straight line; the two first pipelines At least one first input port 7 can be provided on the road.

With reference to FIG. 2, in some embodiments of the present disclosure, the central axis of the third pipeline 6 may be located on the second straight line, and the second straight line and the first straight line may be located on the same plane; on the third pipeline 6 An output port 8 may be provided, and both ends of the third pipeline 6 may communicate with the opposite ends of the two first pipelines 4 through the two second pipelines 5 respectively.

In some embodiments of the present disclosure, the centralized discharge device may be integrally formed, or during manufacturing, the first pipe 4, the second pipe 5, and the third pipe 6 may be manufactured separately, and then welded The way is processed into a whole. The present disclosure does not limit this, but when assembling the centralized discharge device on the tank body, it is necessary to ensure that the centralized discharge device is integral, and there is no need to perform additional processing on it when it is used.

With reference to Figure 2, in some embodiments of the present disclosure, the second straight line and the first straight line can be arranged in parallel, which can reduce the overall space occupied by the device; and the second pipe 5 can be connected to the end of the third pipe 6 And the end of the first pipeline 4 can be connected vertically, and since the central axis of the third pipeline 6 and the two first pipelines 4 can be located on different straight lines, the first input port 7 and The output ports 8 are staggered so as to provide space for the connection of the first input port 7 and the output port 8 with other components.

With reference to FIG. 2, in some embodiments of the present disclosure, the output port 8 may be arranged in the middle of the side of the third pipe 6 facing away from the first pipe 4, so as to be further staggered from the first input port 7, so as to be reasonable. Use space.

With reference to Figure 2, in some embodiments of the present disclosure, one end of the first pipeline 4 of the two first pipelines 4 away from the other first pipeline 4 may be provided with a second input port 9, and The second input port 9 can be used to connect with the pipeline safety valve discharge pipeline, and the remaining ends of the two first pipelines 4 and the third pipeline 6 can be sealed.

In another aspect of the present disclosure, a gas-phase pipeline arrangement structure is also provided. The gas-phase pipeline arrangement structure may include the above-mentioned centralized discharge device, so as to solve the difficulty and low assembly efficiency of the gas-phase pipeline in the prior art. The problem.

Fig. 3 is a schematic structural diagram of a gas-phase pipeline arrangement structure with the centralized discharge device shown in Fig. 2. In some embodiments of the present disclosure, in conjunction with FIG. 3, the arrangement structure may include a gas phase pipeline 10, a system safety valve 11, the centralized discharge device and a venting pipeline 12.

3, in some embodiments of the present disclosure, one end of the gas-phase pipeline 10 can be used to connect with the tank, and the inlets of multiple system safety valves 11 can be communicated with the other end of the gas-phase pipeline 10; The first input port 7 of the discharge device and the system safety valve 11 can be arranged in a one-to-one correspondence, and the outlet of the system safety valve 11 can be communicated with the corresponding first input port 7; the output port 8 of the centralized discharge device can be connected to the discharge pipeline 12 Connected.

In some embodiments of the present disclosure, in conjunction with FIG. 3, the other end of the gas phase pipeline 10 and the first pipeline 4 may be arranged in parallel, and multiple system safety valves 11 may be arranged in parallel; multiple system safety valves 11 may be arranged Between the other end of the gas-phase pipeline 10 and the first pipeline 4, the arrangement structure of the gas-phase pipeline can be cleaned and the narrow installation space can be effectively used.

In some embodiments of the present disclosure, with reference to FIG. 3, the gas phase pipeline arrangement structure may further include a fourth pipeline 13, and the fourth pipeline 13 may be arranged in parallel at the other end of the gas pipeline 10 and the first Between the pipelines 4; multiple system safety valves 11 can be installed on the fourth pipeline 4, and the fourth pipeline 4 can be connected to the other end of the gas pipeline 10 through the switching valve 14, thereby realizing the same system safety valve 11 The other end of the gas pipeline 10 is connected.

Fig. 4 is a schematic rear view of Fig. 3. With reference to FIG. 4, in some embodiments of the present disclosure, one end of the gas-phase pipeline 10 and the venting pipeline 12 may also be connected by a fifth pipeline 15, and the fifth pipeline 15 may be provided with a venting valve 16 The vent valve 16 can be manually controlled. When it is necessary to manually release the pressure in the tank container, the vent valve 16 can be manually opened, so that the medium in the tank can be directly discharged to the release through the gas phase pipeline 10 and the fifth pipeline 15 Line 12.

With reference to Figures 3 and 4, in some embodiments of the present disclosure, a drain valve 17 may also be provided on the relief pipe 12, the function of which is to discharge the condensed water generated by the discharge of cold medium in the relief pipe 12 .

In some embodiments of the present disclosure, the connection between the pipelines and the connection between the pipelines and the valves in the gas-phase pipeline arrangement structure can usually be performed by welding after butting.

In some embodiments of the present disclosure, four system safety valves 11 can be provided, and each first pipeline 4 can be provided with two first input ports 7 to be connected to the corresponding system safety valve 11 .

In yet another aspect of the present disclosure, there is also provided a tank container, which may include a tank body and the gas-phase pipeline arrangement structure.

With reference to Figure 3, in some embodiments of the present disclosure, one end of the gas phase pipeline 10 of the gas phase pipeline arrangement structure can be connected to the circumference of the tank, and the second input port 9 can be discharged from the pipeline safety valve. The pipeline 18 is connected, and a pipeline safety valve may also be provided on the pipeline safety valve discharge pipeline 18.

In some embodiments of the present disclosure, the tank container installed with the gas-phase pipeline arrangement structure has the following two working conditions during the transportation or storage process after being filled with medium: 1. When the tank container After the pressure of the tank increases and reaches the system safety valve take-off pressure, the system safety valve takes off, so that the discharged medium can be discharged into the centralized discharge device through the system safety valve; 2. When the pipeline safety valve discharges the pressure in the pipeline After rising to the tripping pressure of the pipeline safety valve, the pipeline safety valve jumps, so that the discharged medium can be discharged into the centralized discharge device through the pipeline safety valve discharge line 18; subsequently, the medium in the centralized discharge device is discharged through the centralized discharge device. The output port of the device is discharged into the release pipe, thus ensuring the safety of the tank container during transportation and storage.

In some embodiments of the present disclosure, a centralized discharge device may be used to connect the safety valves of each system to the vent pipe, thereby simplifying the connection and assembly of the gas pipeline arrangement structure, thereby reducing the difficulty of pipeline assembly and improving assembly The purpose of efficiency.

Fig. 5 is a schematic diagram of the overall structure of a tank container according to an embodiment of the present disclosure. With reference to FIG. 5, a tank container according to some embodiments of the present disclosure may further include a loading and unloading pipeline 19, a boosting pipeline 20, an overflow pipeline 21 and a differential pressure pipeline 22. The same ends of the loading and unloading pipeline 19, the gas phase pipeline 10, the boosting pipeline 20, the overflow pipeline 21, and the differential pressure pipeline 22 can all be connected to the circumference of the tank through the pipeline backing plate 23, and the loading and unloading The pipeline 19, the gas-phase pipeline 10, the pressure-increasing pipeline 20, the overflow pipeline 21, and the differential pressure pipeline 22 may be arranged on the outside of the circumference of the tank in a direction away from the tank. This arrangement sequence has the following advantages: 1. When installing the loading and unloading pipeline 19, the gas pipeline 10, the booster pipeline 20, the overflow pipeline 21 and the differential pressure pipeline 22, there is no crossover between these pipelines. , And install from the inside to the outside in sequence, the level is clear, the installation efficiency is high, and it is convenient for later maintenance and after-sales; 2. This installation method from the inside to the outside saves the installation space of the external pipeline system to the greatest extent, so that The piping system is more compact with the external valve box, which can make the structure design of the valve box more compact.

It should be noted that in some embodiments of the present disclosure, the medium stored in the tank may be a medium with pressure such as natural gas, and after each pipeline is installed in place, there is a corresponding mounting seat support to ensure that the pipeline Of stability.

The following examples are preferred implementations of the present disclosure, which are only used to facilitate the description of the present disclosure and do not limit the present disclosure in any form. Any person with ordinary knowledge in the technical field, if within the scope of the technical features mentioned in the present disclosure, make use of the technical content disclosed in the present disclosure to make partial changes or equivalent embodiments without departing from The technical features of the present disclosure still fall within the scope of the technical features of the present disclosure.

Claims

A centralized discharge device includes: two first pipelines, two second pipelines and a third pipeline, wherein:

The two first pipelines are arranged opposite to each other, and the central axes of the two first pipelines are located on a first straight line, and at least one first input port is provided on the two first pipelines;

The central axis of the third pipeline is located on the second straight line;

The second straight line and the first straight line are located on the same plane;

An output port is provided on the third pipeline; and

Two ends of the third pipeline are respectively communicated with the opposite ends of the two first pipelines through the second pipeline.
The centralized discharge device according to claim 2, wherein the second straight line and the first straight line are arranged in parallel.
The centralized discharge device according to claim 1, wherein one end of the first pipeline of the two first pipelines facing away from the other first pipeline is provided with a second input port, and The second input port is used to connect with the discharge pipeline of the pipeline safety valve.
A gas-phase pipeline arrangement structure, comprising: a gas-phase pipeline, a system safety valve, the centralized discharge device according to claim 1, and a vent pipeline, wherein:

One end of the gas phase pipeline is used to connect with the tank;

The inlets of multiple safety valves of the system are all connected to the other end of the gas phase pipeline;

The first input port of the centralized discharge device and the system safety valve are arranged in one-to-one correspondence;

The outlet of the system safety valve is in communication with the corresponding first input port; and

The output port of the centralized discharge device is in communication with the relief pipeline.
The gas-phase pipeline arrangement structure according to claim 4, wherein the other end of the gas-phase pipeline and the first pipeline are arranged in parallel;

A plurality of the system safety valves are arranged in parallel, and a plurality of the system safety valves are arranged between the other end of the gas phase pipeline and the first pipeline.
The gas-phase pipeline arrangement structure according to claim 5, wherein the arrangement structure further comprises a fourth pipeline, and the fourth pipeline is arranged in parallel between the other end of the gas-phase pipeline and the first pipeline Between; and

A plurality of the system safety valves are installed on the fourth pipeline, and the fourth pipeline communicates with the other end of the gas phase pipeline through a switching valve.
The gas-phase pipeline arrangement structure according to claim 1, wherein one end of the gas-phase pipeline and the venting pipeline are also connected by a fifth pipeline, and a vent valve is provided on the fifth pipeline.
The gas-phase pipeline arrangement structure according to claim 1, wherein a water drain valve is also provided on the relief pipeline.
A tank container, comprising: a tank body and the gas-phase pipeline arrangement structure according to claim 4; wherein one end of the gas-phase pipeline is connected to the circumferential surface of the tank body.
The tank container according to claim 9, wherein the tank container further comprises a loading and unloading pipeline, a pressurizing pipeline, an overflow pipeline and a differential pressure pipeline;

Wherein, the same end of the loading and unloading pipeline, the gas phase pipeline, the pressurizing pipeline, the overflow pipeline and the differential pressure pipeline are all connected to the tank body through a pipeline gasket. On the peripheral surface, and the loading and unloading pipeline, the gas phase pipeline, the pressurizing pipeline, the overflow pipeline, and the differential pressure pipeline are arranged in the direction away from the tank in order. The outer surface of the tank body.