CN210440968U - Pipeline structure and liquefied gas storage and transportation equipment with same - Google Patents
Pipeline structure and liquefied gas storage and transportation equipment with same Download PDFInfo
- Publication number
- CN210440968U CN210440968U CN201920821817.3U CN201920821817U CN210440968U CN 210440968 U CN210440968 U CN 210440968U CN 201920821817 U CN201920821817 U CN 201920821817U CN 210440968 U CN210440968 U CN 210440968U
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Abstract
The utility model provides a pipeline structure and have its liquefied gas warehousing and transportation equipment, pipeline structure includes: the first pipeline is provided with a first end and a second end, and the first end is used for being connected with the tank body; the first on-off valve body, the second on-off valve body and the on-off structure are sequentially arranged on the first pipeline in an openable and closable manner from the first end to the second end of the first pipeline; the second pipeline is provided with a third end and a fourth end, the third end is communicated with the pipeline of the first pipeline between the first end and the first on-off valve body, and the fourth end is communicated with the pipeline of the first pipeline between the first on-off valve body and the second on-off valve body; and the first valve body is arranged on the second pipeline in an opening and closing way, the first valve body is opened under a preset condition, and when the first valve body is opened, the fluid in the second pipeline flows in a single direction from the fourth end to the third end. Through the technical scheme provided by the utility model, can solve the problem that liquefied gas storage and transportation equipment's pipeline structure combustion gas can not be retrieved among the prior art.
Description
Technical Field
The utility model relates to a liquefied gas warehousing and transportation equipment technical field particularly, relates to a pipeline structure and have its liquefied gas warehousing and transportation equipment.
Background
The liquefied gas storage and transportation equipment comprises an automobile tank truck, a tank container, a railway tank truck, a storage tank and the like and is used for storing media such as liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquefied natural gas and the like. In order to ensure safety, a liquid phase pipeline structure of the frozen liquefied gas storage and transportation equipment is provided with an emergency cut-off valve, a stop valve and a blind flange for three-stage cutting. In the filling process, a liquid phase closed section is possibly generated between the stop valve and the stop valve due to misoperation and the like, and the liquid phase closed section can be gasified to generate overpressure if the liquid phase closed section is left for a long time, so that a pipeline system is damaged, and a safety valve is arranged on the closed section to discharge gas to the outside to reduce the pressure when the pipeline has overpressure. Because the gas discharged from the safety valve is discharged into the atmosphere and can not be recovered, the waste of materials is caused, and the environmental protection is also influenced to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pipeline structure and have its liquefied gas warehousing and transportation equipment to solve the problem that liquefied gas warehousing and transportation equipment's pipeline structure combustion gas can not be retrieved among the prior art.
In order to solve the above problem, according to the utility model discloses an aspect, the utility model provides a pipeline structure, include: the first pipeline is provided with a first end and a second end, and the first end is used for being connected with the tank body; the first on-off valve body, the second on-off valve body and the on-off structure are sequentially arranged on the first pipeline in an openable and closable manner from the first end to the second end of the first pipeline; the second pipeline is provided with a third end and a fourth end, the third end is communicated with the pipeline of the first pipeline between the first end and the first on-off valve body, and the fourth end is communicated with the pipeline of the first pipeline between the first on-off valve body and the second on-off valve body; and the first valve body is arranged on the second pipeline in an opening and closing way, the first valve body is opened under a preset condition, and when the first valve body is opened, the fluid in the second pipeline flows in a single direction from the fourth end to the third end.
Further, the first valve body is a one-way valve or a pressure regulating valve, and the first valve body is opened under the condition that the pressure in the pipeline of the first pipeline between the first on-off valve body and the second on-off valve body is larger than a preset value.
Further, the piping structure further includes: and the second valve body is arranged on the pipeline of the second pipeline between the third end and the first valve body in an opening and closing manner.
Further, the piping structure further includes: and the third valve body is arranged on the pipeline of the second pipeline between the fourth end and the first valve body in an opening and closing manner.
Further, the piping structure further includes: the third pipeline is provided with a fifth end and a sixth end, the fifth end is communicated with the pipeline of the first pipeline between the first end and the first on-off valve body, and the sixth end is communicated with the pipeline of the first pipeline between the second on-off valve body and the on-off structure; and the fourth valve body is arranged on the third pipeline in an opening and closing way, the fourth valve body is opened under a preset condition, and when the fourth valve body is opened, the fluid in the third pipeline flows from the sixth end to the fifth end in a one-way.
Further, the fourth valve body is a one-way valve or a pressure regulating valve, and the fourth valve body is opened under the condition that the pressure in the pipeline between the second on-off valve body and the on-off structure of the first pipeline is greater than a preset value.
Further, the first on-off valve body is one of a shut-off valve, a stop valve, a ball valve, a butterfly valve, a gate valve, a needle valve and a baffle valve.
Further, the second on-off valve body is one of a stop valve, a ball valve, a butterfly valve, a gate valve, a needle valve and a baffle valve.
Further, the on-off structure is one of a blind flange, a protective cover, a quick coupler and a threaded joint.
According to the utility model discloses an on the other hand provides a liquefied gas warehousing and transportation equipment, including jar body and pipeline structure, jar body is used for storing liquefied gas, and pipeline structure is the above-mentioned pipeline structure that provides, pipeline structure's first pipeline and jar body coupling.
Use the technical scheme of the utility model, set up first pipeline in pipeline structure, first break-make valve body, second break-make valve body, the break-make structure, second pipeline and first valve body, because the third end of second pipeline and the pipeline intercommunication that is located between first end and the first break-make valve body of first pipeline, the fourth end communicates with the pipeline that is located between first break-make valve body and the second break-make valve body of first pipeline, and first valve body only can one-way flow after opening, can make first valve body open when the pressure of the pipeline between first break-make valve body and the second break-make valve body is greater than a definite value like this, in order to carry the jar body with first tube coupling with gas through the second pipeline. Therefore, on one hand, the pressure in the pipeline between the first on-off valve body and the second on-off valve body is reduced, the safety is ensured, on the other hand, discharged gas is recycled, the waste of materials is avoided, and the environment can be protected.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic diagram of a pipeline structure provided by an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a first pipeline; 21. a first on-off valve body; 22. a second on-off valve body; 23. an on-off structure; 30. a second pipeline; 40. a first valve body; 50. and (5) a tank body.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
As shown in fig. 1, an embodiment of the present invention provides a pipeline structure, including: a first pipeline 10, the first pipeline 10 having a first end and a second end, the first end for connecting with the tank 50; the first on-off valve body 21, the second on-off valve body 22 and the on-off structure 23 are sequentially arranged on the first pipeline 10 in an openable manner from the first end to the second end of the first pipeline 10; a second pipeline 30, the second pipeline 30 having a third end and a fourth end, the third end being communicated with the pipeline of the first pipeline 10 between the first end and the first on-off valve body 21, the fourth end being communicated with the pipeline of the first pipeline 10 between the first on-off valve body 21 and the second on-off valve body 22; and a first valve body 40 openably and closably provided on the second pipe 30, wherein the first valve body 40 is opened under a predetermined condition, and when the first valve body 40 is opened, the fluid in the second pipe 30 flows unidirectionally from the fourth end to the third end.
By applying the technical scheme of the embodiment, the first pipeline 10, the first on-off valve body 21, the second on-off valve body 22, the on-off structure 23, the second pipeline 30 and the first valve body 40 are arranged in the pipeline structure, because the third end of the second pipeline 30 is communicated with the pipeline of the first pipeline 10, which is positioned between the first end and the first on-off valve body 21, the fourth end is communicated with the pipeline of the first pipeline 10, which is positioned between the first on-off valve body 21 and the second on-off valve body 22, and the first valve body 40 can only flow in a single direction after being opened, the first valve body 40 can be opened when the pressure of the pipeline between the first on-off valve body 21 and the second on-off valve body 22 is greater than a certain value, so that gas is conveyed into the tank 50 connected with the first pipeline 10 through the second pipeline 30. Thus, on one hand, the pressure in the pipeline between the first on-off valve body 21 and the second on-off valve body 22 is reduced, the safety is ensured, on the other hand, the discharged gas is recycled, the waste of materials is avoided, and the environment can be protected.
In the present embodiment, the first valve element 40 is a check valve or a pressure regulating valve, and the first valve element 40 opens when the pressure in the first pipe line 10 between the first and second opening/ closing valve elements 21 and 22 is greater than a predetermined value. The check valve can be selected according to a preset value, and the pressure regulating valve can be regulated according to the preset value.
As background, safety valves are commonly used in the prior art to vent the gas from the seal segment. The auxiliary discharge pipeline of the safety valve is long, the number of welding joints is large, and the construction amount is large. The safety valve needs to be checked by a special mechanism regularly, the operation of equipment can be influenced during checking, and certain cost is caused by checking. The safety valve belongs to an element which is not suitable for frequent work, and the frequent work can cause that the safety valve can not return or the safety valve can not return after being frozen in a low-temperature state. In this embodiment, the gas can be returned to the tank 50 by the cooperation of the check valve or the pressure regulating valve with the second pipe 30. Therefore, the pipeline can be simplified, welding is reduced, construction is facilitated, and manufacturing cost can be reduced. Moreover, the reliability of the check valve or the pressure regulating valve is high, and the regular verification of a special mechanism is not needed.
In this embodiment, the pipeline structure further includes: and a second valve body openably and closably provided on a pipe between the third end of the second pipe 30 and the first valve body 40. In this way, when the first valve body 40 needs to be repaired or replaced, the second pipeline 30 can be closed by the second valve body, avoiding leakage. When in normal use, the second valve body is in a normally open state.
In particular, the second valve body may be provided as a shut-off valve, a shut-off valve or other valve body capable of switching on and off a pipeline.
In this embodiment, the pipeline structure further includes: a third valve body openably and closably disposed on the line of the second line 30 between the fourth end and the first valve body 40. In this way, when the first valve body 40 needs to be repaired or replaced, the second pipeline 30 can be closed by the third valve body, avoiding leakage. When in normal use, the third valve body is in a normally open state.
In particular, the third valve body may be provided as a stop valve, a shut-off valve or other valve body capable of switching on and off a pipeline.
In an embodiment not shown in the present disclosure, the pipeline structure further includes: a third pipeline having a fifth end and a sixth end, the fifth end being communicated with the pipeline of the first pipeline 10 between the first end and the first on-off valve body 21, the sixth end being communicated with the pipeline of the first pipeline 10 between the second on-off valve body 22 and the on-off structure 23; and the fourth valve body is arranged on the third pipeline in an opening and closing way, the fourth valve body is opened under a preset condition, and when the fourth valve body is opened, the fluid in the third pipeline flows from the sixth end to the fifth end in a one-way.
This allows the fourth valve body to open when the pressure in the line between the on-off structure 23 and the second shut-off valve body 22 is greater than a certain value, so as to deliver gas through the third line into the tank 50 connected to the first line 10. Thus, on one hand, the pressure in the pipeline between the on-off structure 23 and the second on-off valve body 22 is reduced, the safety is ensured, on the other hand, the discharged gas is recycled, the waste of materials is avoided, and the environment can be protected.
Specifically, the fourth valve body is a check valve or a pressure regulating valve, and opens when the pressure in the first pipe 10 between the second cut-off valve body 22 and the cut-off structure 23 is greater than a predetermined value. In this embodiment, the gas can be returned to the tank 50 by the cooperation of the check valve or the pressure regulating valve with the third pipe. Therefore, the pipeline can be simplified, welding is reduced, construction is facilitated, and manufacturing cost can be reduced. Moreover, the reliability of the check valve or the pressure regulating valve is high, and the regular verification of a special mechanism is not needed. Furthermore, the problem that the refrigerator cannot be reset due to freezing does not occur.
In the present embodiment, the first on-off valve body 21 is one of a shut-off valve, a stop valve, a ball valve, a butterfly valve, a gate valve, a needle valve, and a flapper valve. For example, when the first on-off valve body 21 is a shut valve, the shut valve may be in the form of a pneumatic shut valve, a mechanical shut valve, a hydraulic shut valve, an electromagnetic shut valve, an electric shut valve, or the like.
In the present embodiment, the second shut-off valve body 22 is one of a shut-off valve, a stop valve, a ball valve, a butterfly valve, a gate valve, a needle valve, and a flapper valve.
In the present embodiment, the on-off structure 23 is disposed at the end of the first pipeline 10 to perform the function of opening and closing the pipeline, and the on-off structure 23 may be any one of a blind flange, a protective cover, a quick coupler and a threaded joint.
Another embodiment of the utility model provides a liquefied gas warehousing and transportation equipment, including jar body 50 and pipeline structure, jar body 50 is used for storing liquefied gas, and pipeline structure is the above-mentioned pipeline structure who provides, and pipeline structure's first pipeline 10 is connected with jar body 50. Because the third end of the second pipeline 30 of the pipeline structure is communicated with the pipeline of the first pipeline 10 between the first end and the first on-off valve body 21, the fourth end is communicated with the pipeline of the first pipeline 10 between the first on-off valve body 21 and the second on-off valve body 22, and the first valve body 40 can only flow in a single direction after being opened, the first valve body 40 can be opened when the pressure of the pipeline between the first on-off valve body 21 and the second on-off valve body 22 is greater than a certain value, so that the gas can be conveyed into the tank 50 connected with the first pipeline 10 through the second pipeline 30. Therefore, on one hand, the pressure in the pipeline between the first on-off valve body 21 and the second on-off valve body 22 is reduced, the safety of liquefied gas storage and transportation equipment is ensured, on the other hand, discharged gas is recycled, the waste of materials is avoided, and the environment can be protected.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
Claims (10)
1. A piping structure, comprising:
a first conduit (10), said first conduit (10) having a first end and a second end, said first end for connection to a tank (50);
the first on-off valve body (21), the second on-off valve body (22) and the on-off structure (23) are sequentially arranged on the first pipeline (10) in an openable and closable manner from a first end to a second end of the first pipeline (10), wherein the first on-off valve body (21), the second on-off valve body (22) and the on-off structure (23) are arranged on the first pipeline (10);
a second pipeline (30), the second pipeline (30) having a third end and a fourth end, the third end being in communication with a pipeline of the first pipeline (10) between the first end and the first on-off valve body (21), the fourth end being in communication with a pipeline of the first pipeline (10) between the first on-off valve body (21) and the second on-off valve body (22);
a first valve body (40) openably and closably disposed on the second pipeline (30), the first valve body (40) being opened under a predetermined condition, and when the first valve body (40) is opened, the fluid in the second pipeline (30) flows unidirectionally from the fourth end to the third end.
2. Pipeline structure according to claim 1, characterized in that the first valve body (40) is a one-way valve or a pressure regulating valve, and in case the pressure in the pipeline of the first pipeline (10) between the first on-off valve body (21) and the second on-off valve body (22) is greater than a predetermined value, the first valve body (40) opens.
3. The piping structure according to claim 1, further comprising:
a second valve body openably and closably provided on a pipe line of the second pipe line (30) between the third end and the first valve body (40).
4. The piping structure according to claim 1, further comprising:
a third valve body openably arranged on the second line (30) between the fourth end and the first valve body (40).
5. The piping structure according to claim 1, further comprising:
a third pipeline having a fifth end and a sixth end, the fifth end being in communication with the pipeline of the first pipeline (10) between the first end and the first on-off valve body (21), the sixth end being in communication with the pipeline of the first pipeline (10) between the second on-off valve body (22) and the on-off structure (23);
and the fourth valve body is arranged on the third pipeline in an opening and closing way, the fourth valve body is opened under a preset condition, and when the fourth valve body is opened, the fluid in the third pipeline flows from the sixth end to the fifth end in a one-way.
6. Pipeline structure according to claim 5, characterized in that the fourth valve body is a one-way valve or a pressure regulating valve, which opens in case the pressure in the first pipeline (10) between the second on-off valve body (22) and the on-off structure (23) is greater than a predetermined value.
7. Piping structure according to claim 1, characterized in that said first on-off valve body (21) is one of a shut-off valve, a stop valve, a ball valve, a butterfly valve, a gate valve, a needle valve and a flapper valve.
8. Pipeline structure according to claim 1, characterized in that the second on-off valve body (22) is one of a shut-off valve, a stop valve, a ball valve, a butterfly valve, a gate valve, a needle valve and a flapper valve.
9. The piping structure according to claim 1, wherein the on-off structure (23) is one of a blind flange, a protecting cover, a quick coupler and a threaded joint.
10. Liquefied gas storage and transportation installation comprising a tank (50) and a pipeline structure, the tank (50) being intended for storing liquefied gas, characterized in that the pipeline structure is a pipeline structure according to any one of claims 1 to 9, the first pipeline (10) of the pipeline structure being connected to the tank (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821817.3U CN210440968U (en) | 2019-05-31 | 2019-05-31 | Pipeline structure and liquefied gas storage and transportation equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821817.3U CN210440968U (en) | 2019-05-31 | 2019-05-31 | Pipeline structure and liquefied gas storage and transportation equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210440968U true CN210440968U (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920821817.3U Withdrawn - After Issue CN210440968U (en) | 2019-05-31 | 2019-05-31 | Pipeline structure and liquefied gas storage and transportation equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210440968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110433A (en) * | 2021-11-30 | 2022-03-01 | 内蒙古蒙牛乳业（集团）股份有限公司 | Safety maintenance device and method |
-
2019
- 2019-05-31 CN CN201920821817.3U patent/CN210440968U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110433A (en) * | 2021-11-30 | 2022-03-01 | 内蒙古蒙牛乳业（集团）股份有限公司 | Safety maintenance device and method |
| CN114110433B (en) * | 2021-11-30 | 2023-11-24 | 内蒙古蒙牛乳业（集团）股份有限公司 | Safety maintenance device and method |
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