Side-tipping liquid discharging mechanism on frozen liquefied gas tank car
By designing a side-turning and unloading mechanism on the refrigerated liquefied gas tanker, including internal, interlayer and external pipelines, the problem of liquid export after the tanker is overturned is solved, safe and effective liquid export and heat isolation are achieved, and accidents are avoided. Diseases of dew and frosting.
Patent Information
- Application Number
- CN202420835837.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-22
AI Technical Summary
It is difficult for the refrigerated liquefied gas tanker to deduct liquid after overturning, resulting in the amplification of the accident and conflicts between regulations.
A side-turning and unloading mechanism is designed, including internal pipelines, mezzanine pipelines and external pipelines. The internal pipelines are located on both sides of the inner cylinder of the tank truck, and the upper port is attached to the inner wall. The mezzanine pipelines are located in the inner and outer cylinder interlayers. The external pipeline is located on the outside, and an air seal section is provided on the mezzanine pipeline to ensure that the liquid can be exported smoothly after turning over.
It can successfully export frozen liquefied gas after the tanker overturns, reduce the risk of accident expansion, and slow down heat transfer through the gas seal section to avoid condensation and frost.
Smart Images
Figure CN222164464U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a refrigerated liquefied gas tank truck, in particular to a side-turning liquid unloading mechanism on the refrigerated liquefied gas tank truck. Background Art
[0002] When refrigerated liquefied gas tank trucks are traveling on the road, accidents are inevitable, causing the tank truck to roll over. After the rollover, the liquid in the tank is difficult to export and transfer. Lifting with liquid is not only in conflict with regulations but also easily leads to the escalation of accidents. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a rollover liquid unloading mechanism on a refrigerated liquefied gas tank truck which can smoothly discharge the refrigerated liquefied gas in the tank after the tank truck rolls over.
[0004] In order to solve the above problems, the technical solution adopted by the utility model is: a rollover liquid unloading mechanism on a refrigerated liquefied gas tank truck, characterized in that it includes: two internal pipelines, two interlayer pipelines, and two external pipelines, the two internal pipelines are located in the inner cylinder of the tank truck, and are respectively located on the left and right sides of the inner cylinder, the upper ports of the two internal pipelines are connected to the inner cavity of the inner cylinder, the upper ports of the two internal pipelines are respectively arranged close to the inner wall of the inner cylinder on the side, and are respectively located in the middle of the height direction of the inner cylinder, so that after the tank truck rolls over, the upper ports of the two internal pipelines can be respectively located at the bottom and top of the inner cylinder, and the two The sandwich pipelines are located in the sandwich between the inner cylinder and the outer cylinder on the tank truck and are located below the two internal pipelines. The two sandwich pipelines correspond to the two internal pipelines one by one. The lower ends of the two internal pipelines pass through the inner cylinder downward and are respectively connected to the upper ends of the corresponding sandwich pipelines. The two external pipelines are located on the outside of the outer cylinder and are located below the two sandwich pipelines. The two external pipelines correspond to the two sandwich pipelines one by one. The lower ends of the two sandwich pipelines pass through the outer cylinder downward and are respectively connected to the upper ends of the corresponding external pipelines. Valves and connecting flanges are provided on the two external pipelines.
[0005] Furthermore, the aforementioned rollover liquid unloading mechanism on the refrigerated liquefied gas tank truck, wherein: the two interlayer pipelines are respectively provided with gas sealing sections, the gas sealing sections include an ascending section and a descending section, the ascending section and the descending section are connected, the ascending section is used to connect with the internal pipeline, and the descending section is used to connect with the external pipeline, along the flow direction of the interlayer pipeline, it first rises through the ascending section and then descends through the descending section, after the valve on the external pipeline is closed, the gas sealing section can retain the gasified gas in the interlayer pipeline and the external pipeline to form an air seal.
[0006] Furthermore, in the aforementioned rollover liquid unloading mechanism on the refrigerated liquefied gas tanker, the height difference of the rising section is greater than three times the diameter of the sandwich pipeline.
[0007] Furthermore, in the aforementioned rollover liquid unloading mechanism on the refrigerated liquefied gas tanker, two internal pipelines are respectively arranged along the inner wall of the inner cylinder from top to bottom.
[0008] Furthermore, in the aforementioned rollover liquid unloading mechanism on the refrigerated liquefied gas tanker, two groups of pipelines formed by the corresponding internal pipelines, interlayer pipelines, and external pipelines are arranged opposite to each other on the left and right.
[0009] Furthermore, in the aforementioned rollover liquid unloading mechanism on the refrigerated liquefied gas tanker, two external pipelines are located in the middle of the tanker in the left-right direction.
[0010] The advantages of the utility model are as follows: the upper ends of the two internal pipelines in the rollover liquid unloading mechanism are respectively arranged close to the inner wall of the inner cylinder on the side where they are located, and are respectively located in the middle of the height direction of the inner cylinder, so that after the tank truck rolls over, the upper ends of the two internal pipelines can be respectively located at the bottom and top of the inner cylinder, thereby providing the possibility of liquid unloading after the rollover. When the tank truck rolls over, among the two groups of pipelines connected by the corresponding internal pipelines, interlayer pipelines, and external pipelines, one group of pipelines is used to connect the liquid phase, and the other group of pipelines is used to connect the gas phase. After opening the valve, the group of pipelines connected to the liquid phase can unload the liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The utility model is a schematic structural diagram of the rollover liquid unloading mechanism on the refrigerated liquefied gas tanker.
[0012] Figure 2 The utility model is a schematic structural diagram of the rollover liquid unloading mechanism on the refrigerated liquefied gas tanker when in use. DETAILED DESCRIPTION
[0013] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.
[0014] like Figure 1 , Figure 2As shown, the rollover liquid unloading mechanism on the refrigerated liquefied gas tank truck includes: two internal pipelines 1, two sandwich pipelines 2, and two external pipelines 3. The tank on the tank truck includes: an inner cylinder 5 and an outer cylinder 4, and the inner cylinder 5 is installed in the outer cylinder 4; the two internal pipelines 1 are located in the inner cylinder 5 of the tank truck, and are respectively located on the left and right sides of the inner cylinder 5, and the upper ports of the two internal pipelines 1 are connected to the inner cavity of the inner cylinder 5. The upper ports of the two internal pipelines 1 are respectively arranged close to the inner wall of the inner cylinder 5 on the side, and are respectively located in the middle of the height direction of the inner cylinder 5, so that after the tank truck rolls over, the upper ports of the two internal pipelines 1 can be respectively located at the bottom and top of the inner cylinder 5, and the two sandwich pipelines 2 are located in the tank truck. The tank truck is in the interlayer between the inner cylinder 5 and the outer cylinder 4, and is located below the two internal pipelines 1. The two interlayer pipelines 2 correspond to the two internal pipelines 1 one by one. The lower ports of the two internal pipelines 1 pass through the inner cylinder 5 downward and are respectively connected to the upper ports of the corresponding interlayer pipelines 2. The two external pipelines 3 are located on the outside of the outer cylinder 4 and are located below the two interlayer pipelines 2. The two external pipelines 3 correspond to the two interlayer pipelines 2 one by one. The lower ports of the two interlayer pipelines 2 pass through the outer cylinder 4 downward and are respectively connected to the upper ports of the corresponding external pipelines 3. Valves and connecting flanges are provided on the two external pipelines 3. When the tank truck overturns, the connecting flanges are used to connect external loading and unloading pipes.
[0015] In this embodiment, the two sandwich pipes 2 are respectively provided with a gas sealing section 6, which includes an ascending section 61 and a descending section 62. The ascending section 61 and the descending section 62 are connected, the ascending section 61 is used to be connected with the internal pipe 1, and the descending section 62 is used to be connected with the external pipe 3. Following the flow direction of the sandwich pipe 2, the gas first ascends through the ascending section 61 and then descends through the descending section 62. After the valve on the external pipe 3 is closed, the gas sealing section 6 can retain the gasified gas in the sandwich pipe 2 and the external pipe 3 to form a gas seal. After the valve on the external pipe 3 is closed, a part of the refrigerated liquefied gas in the tank truck will be gasified when flowing into the sandwich pipe 2 and the external pipe 3, and the gasified gas will be retained in the sandwich pipe 2 and the external pipe 3 due to the gas sealing section 6 to form a gas seal.
[0016] In order to improve the stability of the air seal during transportation, the height difference of the ascending section 61 is greater than three times the diameter of the sandwich pipeline 2 .
[0017] The two internal pipelines 1 are arranged from top to bottom against the inner wall of the inner cylinder 5, so that the internal pipeline 1 is easier to fix. The two groups of pipelines connected by the corresponding internal pipelines 1, the interlayer pipelines 2, and the external pipelines 3 are arranged relatively to the left and right. This arrangement can make the layout more reasonable. Since the tank truck can be overturned to the left or the right, two groups of pipelines are set. When overturned, one group of pipelines is used to connect the liquid phase, and the other group of pipelines is used to connect the gas phase. The two external pipelines 3 are located in the middle of the left and right directions of the tank truck. After this arrangement, after the tank truck overturns, the valves and connecting flanges on the external pipelines 3 can be about 1000mm to 1400mm from the ground, which is at the golden height position. No scaffolding is required to connect the pipelines and operate the valves, saving rescue time.
[0018] The upper ends of the two internal pipes 1 are respectively arranged close to the inner wall of the inner cylinder 5 on the side, and are respectively located in the middle of the height direction of the inner cylinder 5, so that after the tanker rolls over, the upper ends of the two internal pipes 1 can be respectively located at the bottom and top of the inner cylinder 5, thereby providing the possibility of unloading liquid after the rollover. The interlayer pipe 2 is provided with an air seal section 6. After the valve on the external pipe 3 is closed, the air seal section 6 can retain the gasified gas in the interlayer pipe 2 and the external pipe 3 to form an air seal, which greatly slows down the external heat from being transmitted into the inner cylinder 5, and avoids the defects such as condensation and frost on the outer cylinder 4.
Claims
1. A rollover liquid unloading mechanism on a refrigerated liquefied gas tanker, characterized in that: include: Two internal pipelines, two sandwich pipelines, and two external pipelines. The two internal pipelines are located in the inner cylinder of the tank truck and are respectively located on the left and right sides of the inner cylinder. The upper ports of the two internal pipelines are connected to the inner cavity of the inner cylinder. The upper ports of the two internal pipelines are respectively arranged close to the inner wall of the inner cylinder on the side and are respectively located in the middle of the height direction of the inner cylinder, so that after the tank truck rolls over, the upper ports of the two internal pipelines can be respectively located at the bottom and top of the inner cylinder. The two sandwich pipelines are located in the sandwich between the inner cylinder and the outer cylinder on the tank truck. The two outer pipes are located outside the outer pipe and below the two inner pipes. The two outer pipes correspond to the two inner pipes one by one. The lower ends of the two inner pipes pass through the inner cylinder downward and are connected to the upper ends of the corresponding outer pipes respectively. The two outer pipes are located outside the outer cylinder and below the two inner pipes. The two outer pipes correspond to the two inner pipes one by one. The lower ends of the two inner pipes pass through the outer cylinder downward and are connected to the upper ends of the corresponding outer pipes respectively. Valves and connecting flanges are provided on the two outer pipes.
2. The side-over unloading mechanism for a refrigerated liquefied gas tanker according to claim 1, characterized in that: The two sandwich pipelines are respectively provided with air sealing sections, which include an ascending section and a descending section. The ascending section and the descending section are connected. The ascending section is used to connect with the internal pipeline, and the descending section is used to connect with the external pipeline. The flow direction of the sandwich pipeline first rises through the ascending section and then descends through the descending section. After the valve on the external pipeline is closed, the air sealing section can retain the vaporized gas in the sandwich pipeline and the external pipeline to form an air seal.
3. The side-over unloading mechanism for a refrigerated liquefied gas tanker according to claim 2, characterized in that: The height difference of the ascending section is greater than three times the diameter of the sandwich pipe.
4. The side-over unloading mechanism for a refrigerated liquefied gas tanker according to claim 1, 2 or 3, characterized in that: The two internal pipelines are respectively arranged along the inner wall of the inner cylinder from top to bottom.
5. The side-turning liquid unloading mechanism on a refrigerated liquefied gas tanker according to claim 1, 2 or 3, characterized in that: The two groups of pipelines formed by the corresponding internal pipelines, interlayer pipelines and external pipelines are arranged opposite to each other on the left and right.
6. The side-over unloading mechanism for a refrigerated liquefied gas tanker according to claim 1, 2 or 3, characterized in that: The two external pipelines are located in the middle of the tanker in the left and right directions.