CN219866370U - Integrated packaging valve module for low-temperature pipeline of dual-fuel ship - Google Patents
Integrated packaging valve module for low-temperature pipeline of dual-fuel ship Download PDFInfo
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- CN219866370U CN219866370U CN202320951615.7U CN202320951615U CN219866370U CN 219866370 U CN219866370 U CN 219866370U CN 202320951615 U CN202320951615 U CN 202320951615U CN 219866370 U CN219866370 U CN 219866370U
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- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003949 liquefied natural gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to an integrated packaging valve module for a low-temperature pipeline of a dual-fuel ship, which comprises a box body, a low-temperature refrigerator and a low-temperature valve, wherein a main low-temperature pipe is horizontally arranged at the air inlet end of the low-temperature valve, an auxiliary low-temperature pipe is horizontally arranged at the air outlet end of the low-temperature valve, the main low-temperature pipe and the auxiliary low-temperature pipe are both connected with the outer wall of the box body through external flanges, the low-temperature refrigerator is arranged on the inner wall of the box body through a support plate, the air inlet end of the low-temperature refrigerator is provided with an air inlet pipe, and the air outlet end of the low-temperature refrigerator is communicated with an auxiliary low Wen Guanxiang through a liquid outlet pipe. The low-temperature valve, the main low-temperature pipe, the auxiliary low-temperature pipe and the low-temperature refrigerator are all packaged in the box body, LNG regenerated liquid in the low-temperature refrigerator flows into the auxiliary low-temperature pipe through the liquid outlet pipe under the action of gravity and the pressure of water heads in the refrigerator, BOG recovery is realized, leakage and diffusion from the valve are completely blocked, and the LNG refrigerator adopts a modularized structure, is convenient for An Zhuangyun dimension and has the characteristics of being intrinsically safe and convenient to install and overhaul.
Description
Technical Field
The utility model relates to the technical field of cryogenic storage and transportation of Liquefied Natural Gas (LNG), in particular to a BOG reliquefaction integrated packaging valve module for a low-temperature pipeline of a dual-fuel ship.
Background
The dual-fuel ship simultaneously adopts fuel oil and natural gas as main power devices to provide fuel, so that the dual-fuel ship fully meets the increasingly severe low-carbon emission reduction requirements in the field of maritime transportation. The LNG system of the dual-fuel ship consists of a cryogenic liquid tank, a low-temperature pipeline and pipeline accessories (mainly a low-temperature valve), and LNG is fed into the engine room from the liquid tank through the low-temperature pipeline.
LNG normal pressure boiling point-162 ℃, strict cold insulation measures must be adopted for liquid filling, pipelines and pipeline accessories, otherwise, once external heat enters the system, LNG is extremely easy to gasify to generate BOG (flash evaporation gas), if the gasification speed is too high, pipeline pressure rise, strength failure and even pipe explosion accidents are caused.
The higher BOG locations in the piping system are typically located at the valve because of the greater difficulty of cold insulation of the valve. Therefore, the vicinity of the valve is usually defined as a dangerous area, the fire hydrant is arranged to cope with the possible risk of knocking, the recovery difficulty of leaked BOG is high, and the leaked BOG is usually diffused, so that a large fuel gas loss is formed for a long time.
Disclosure of Invention
The utility model aims to provide an integrated packaging valve module for a low-temperature pipeline of a dual-fuel ship, which is used for solving the problems in the background art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides an integral type encapsulation valve module for dual-fuel ship low temperature pipeline, includes box, cryocooler and cryovalve, low Wen Faan dress is in the box, and main cryotube is installed to the inlet end level of cryovalve, and vice cryotube is installed to the outlet end level of cryovalve, main cryotube and vice cryotube are all through external flange and box's external wall connection, cryocooler passes through the mounting panel and installs on the inner wall of box, cryocooler's inlet end is equipped with the intake pipe, and cryocooler's outlet end passes through drain pipe and vice low Wen Guanxiang intercommunication.
In the above scheme, the pipe wall of the main low-temperature pipe and the pipe wall of the auxiliary low-temperature pipe are respectively provided with a pipe cold insulation layer.
In the above scheme, the top of the box body is provided with a rotating rod, and the bottom of the rotating rod penetrates through the box body to extend into the low-temperature valve and drive the low-temperature valve to be opened and closed. As a preferable scheme, a low-temperature sealing sheet is arranged at the joint of the rotating rod and the box body.
In the scheme, the air inlet end of the low-temperature valve is horizontally and hermetically arranged with the main low-temperature pipe through the main flange, and the air outlet end of the low-temperature valve is horizontally and hermetically arranged with the auxiliary low-temperature pipe through the main flange.
In the scheme, a pneumatic pressure check valve is arranged in the air inlet pipe; the liquid outlet pipe is internally provided with a low-temperature one-way valve.
In the above scheme, the low-temperature valve is any one of a ball valve and a butterfly valve; the low-temperature refrigerator is any one of compression type, absorption type and semiconductor type.
Compared with the prior art, the utility model has the beneficial effects that: the low-temperature valve, the main low-temperature pipe, the auxiliary low-temperature pipe and the low-temperature refrigerator are all packaged in the box body, LNG regenerated liquid in the low-temperature refrigerator flows into the auxiliary low-temperature pipe through the liquid outlet pipe under the action of gravity and the pressure of water heads in the refrigerator, BOG recovery is realized, leakage and diffusion from the valve are completely blocked, and the LNG refrigerator adopts a modularized structure, is convenient for An Zhuangyun dimension and has the characteristics of being intrinsically safe and convenient to install and overhaul.
Drawings
The disclosure of the present utility model is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of an air intake pipe according to the present utility model;
FIG. 4 is an enlarged view of the portion D of FIG. 3;
FIG. 5 is a schematic view of the structure of the inside of the liquid outlet pipe in the present utility model;
FIG. 6 is a schematic cross-sectional view of the cryogenic valve of the present utility model when closed;
FIG. 7 is a schematic cross-sectional view of the cryogenic valve of the present utility model when opened.
Reference numerals in the drawings: the high-pressure air-conditioning device comprises a 1-box body, a 2-external flange, a 3-air inlet pipe, a 4-low temperature shock absorption block, a 5-low temperature refrigerator, a 6-support plate, a 7-liquid outlet pipe, an 8-auxiliary low temperature pipe, a 9-main flange, a 10-low temperature valve, 11-screws, 12-nuts, 13-pipe cold insulation layers, 14-main low temperature pipes, 15-low temperature sealing sheets, 16-rotating rods, 17-pneumatic pressure check valves, 18-low temperature one-way valves and 19-ball valve cores.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the present utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures to which the utility model pertains.
According to the technical scheme of the utility model, a person skilled in the art can propose various alternative structural modes and implementation modes without changing the true spirit of the utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.
The technical scheme of the utility model is further described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an integrally packaged valve module for a low temperature pipeline of a dual fuel ship includes a tank 1, a cryocooler 5, and a cryovalve 10. The low temperature valve 10 is installed in the box body 1, the main low temperature pipe 14 is horizontally installed at the air inlet end of the low temperature valve 10, and the auxiliary low temperature pipe 8 is horizontally installed at the air outlet end of the low temperature valve 10. Specifically, during implementation, the air inlet end of the low-temperature valve 10 is horizontally and hermetically installed with the main low-temperature pipe 14 through the main flange 9, the air outlet end of the low-temperature valve 10 is horizontally and hermetically installed with the auxiliary low-temperature pipe 8 through the main flange 9, the main flange 9 is tightly and fixedly connected with the main low-temperature pipe and the auxiliary low-temperature valve 10 through the cooperation of the screw 11 and the nut 12, and an O-shaped sealing gasket is further placed at the clamping connection position of the main flange 9, so that the main flange 9 and the auxiliary low-temperature pipe are tightly fixed and sealed.
The pipe wall of the main low-temperature pipe 14 and the pipe wall of the auxiliary low-temperature pipe 8 are respectively wrapped with a pipe cold-insulation layer 13, and the pipe cold-insulation layer 13 can be made of Polyurethane (PIR), silicon oxide aerogel, expanded perlite and foam glass. The box 1 is internally leaked with BOG gaseous materials, and the temperature is higher relative to LNG, so that additional cold insulation is not required to be applied to the box 1. The main low-temperature pipe 14 and the auxiliary low-temperature pipe 8 are connected with the outer wall of the box body 1 through external flanges 2, and are hermetically connected in through holes at two sides of the box body 1, wherein the external flanges 2 are used for connecting a module and an upstream pipeline and a downstream pipeline, namely an upstream pipeline and a downstream pipeline of an LNG pipeline in a low-temperature pipeline of a dual-fuel ship.
In addition, be equipped with dwang 16 at the top of box 1, dwang 16 is T type structure, and convenient manual rotation can adopt drive arrangement timing autogiration. The bottom of the rotating lever 16 extends through the casing 1 into the low temperature valve 10, and drives the low temperature valve 10 to open and close. As a preferable scheme, a low-temperature sealing piece 15 is arranged at the joint of the rotating rod 16 and the box body 1, the low-temperature sealing piece 15 is arranged at a through hole at the upper end of the box body 1, and the rotating rod 16 penetrating through the through hole at the upper end of the box body 1 controls the flow passage of the low-temperature valve 10 to be opened and closed through rotation. Therefore, when LNG (liquid) is introduced into the main cryotube 14, the cryovalve 10 is used to open and close the flow path of the main cryotube 14 (by the rotating rod 16), and the contact between the rotating rod 16 and the tank 1 is provided with the cryoseal 15 for preventing the BOG at a low temperature in the tank 1 from escaping.
The cryocooler 5 is arranged on the inner wall of the box body 1 through the support plate 6, and a cryodamper 4 is further arranged between the cryocooler 5 and the inner wall of the box body 1 for blocking, so that vibration generated by the cryocooler 5 during operation is reduced. The air inlet end of the cryocooler 5 is provided with an air inlet pipe 3, the air inlet pipe 3 is positioned in the cavity of the box body 1, and the air outlet end of the cryocooler 5 is communicated with an auxiliary cryotube 8 through a liquid outlet pipe 7. In practice, the cryocooler 5 is located above the secondary cryotube 8, and the two are connected by a vertical outlet tube 7.
In practice, as shown in fig. 3 and 4, a pneumatic pressure check valve 17 is provided in the intake pipe 3. Referring to fig. 5, as a preferred solution, a low-temperature check valve 18 is provided in the liquid outlet pipe 7. In the specific implementation, the pneumatic pressure check valve 17 and the low-temperature one-way valve 18 arranged in the air inlet pipe 3 and the liquid outlet pipe 7 are not limited in structural form, and can be of an up-and-down type, a swing type and the like, and are all within the scope of the claims.
In practice, the cryogenic valve 10 is either a globe valve or a butterfly valve and is within the scope of the claims. The cryocooler 5 is any one of compression type, absorption type and semiconductor type cryocooler. Referring to fig. 6 and 7, the cryogenic valve 10 employs a ball valve, the rotary rod 16 controls the opening and closing of the cryogenic valve 10 by driving the ball valve core 19, and LNG is blocked when the passage is communicated by rotating the position of the through hole of the ball valve core 19 in the cryogenic valve 10, and LNG is unblocked when the passage is closed. The cryocooler 5 is not limited in its form of refrigeration and is intended to be re-liquefiable and may be of the compression, absorption, semiconductor type, etc., and is within the scope of the claims.
In summary, the inside of the box body 1 is provided with the main and auxiliary low-temperature pipes wrapped by the pipe cold-insulation layer 13, the main and auxiliary low-temperature pipes respectively penetrate through the through holes on two sides of the box body 1, the inner side ends of the main and auxiliary low-temperature pipes are connected with the low-temperature valve 10 through the main flange 9, and the outer side ends of the main and auxiliary low-temperature pipes are provided with the external flange 2 to be connected with the external up-down flow pipeline. When the BOG leakage occurs at the low-temperature valve 10, the BOG flash gas is sealed in the box body 1 and cannot diffuse to the outside, along with the gradual accumulation of the BOG in the box body 1, the pressure in the box body 1 rises, after the pressure exceeds a threshold value, the pneumatic pressure check valve 17 of the air inlet pipe 3 in the low-temperature refrigerator 5 is jacked, the BOG enters the low-temperature refrigerator 5, and is re-liquefied into LNG in the low-temperature refrigerator 5. LNG regenerated liquid in the low-temperature refrigerator 5 flows into the auxiliary low-temperature pipe 8 through the liquid outlet pipe 7 by the low-temperature check valve 18 under the action of gravity and the pressure of water head in the refrigerator, so as to realize BOG recovery.
In the utility model, the low-temperature valve 10, the main low-temperature pipe, the auxiliary low-temperature pipe and the low-temperature refrigerator 5 are all packaged in the box body 1, so that leakage and diffusion from the valve are completely blocked.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. These undisclosed elements are all of the prior art known to those skilled in the art.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. An integrated packaging valve module for a dual fuel boat cryogenic pipeline, characterized in that: including box (1), cryocooler (5) and low temperature valve (10), cryocooler (10) are installed in box (1), and main cryotube (14) are installed to the inlet end level of cryocooler (10), and vice cryotube (8) are installed to the outlet end level of cryocooler (10), main cryotube (14) and vice cryotube (8) are all through external flange (2) and box (1) outer wall connection, cryocooler (5) are installed on box (1)'s inner wall through mounting panel (6), the inlet end of cryocooler (5) is equipped with intake pipe (3), and the outlet end of cryocooler (5) is linked together with vice cryotube (8) through drain pipe (7).
2. An integrally packaged valve module for a cryogenic pipeline of a dual fuel vessel as claimed in claim 1, wherein: and a pipe cold insulation layer (13) is respectively arranged on the pipe wall of the main low-temperature pipe (14) and the pipe wall of the auxiliary low-temperature pipe (8).
3. An integrally packaged valve module for a cryogenic pipeline of a dual fuel vessel as claimed in claim 1, wherein: the top of the box body (1) is provided with a rotating rod (16), and the bottom of the rotating rod (16) penetrates through the box body (1) to extend into the low-temperature valve (10) and drives the low-temperature valve (10) to be opened and closed.
4. An integrally packaged valve module for a cryogenic pipeline of a dual fuel boat as claimed in claim 3, wherein: the connection part of the rotating rod (16) and the box body (1) is provided with a low-temperature sealing sheet (15).
5. An integrally packaged valve module for a cryogenic pipeline of a dual fuel vessel as claimed in claim 1, wherein: the air inlet end of the low-temperature valve (10) is horizontally and hermetically arranged with the main low-temperature pipe (14) through the main flange (9), and the air outlet end of the low-temperature valve (10) is horizontally and hermetically arranged with the auxiliary low-temperature pipe (8) through the main flange (9).
6. An integrally packaged valve module for a cryogenic pipeline of a dual fuel vessel as claimed in claim 1, wherein: a pneumatic pressure check valve (17) is arranged in the air inlet pipe (3).
7. An integrally packaged valve module for a cryogenic pipeline of a dual fuel vessel as claimed in claim 1, wherein: a low-temperature one-way valve (18) is arranged in the liquid outlet pipe (7).
8. An integrally packaged valve module for a cryogenic pipeline of a dual fuel vessel as claimed in claim 1, wherein: the low-temperature valve (10) is any one of a ball valve and a butterfly valve; the low-temperature refrigerator (5) is any one of compression type, absorption type and semiconductor type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320951615.7U CN219866370U (en) | 2023-08-17 | 2023-08-17 | Integrated packaging valve module for low-temperature pipeline of dual-fuel ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320951615.7U CN219866370U (en) | 2023-08-17 | 2023-08-17 | Integrated packaging valve module for low-temperature pipeline of dual-fuel ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866370U true CN219866370U (en) | 2023-10-20 |
Family
ID=88324991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320951615.7U Active CN219866370U (en) | 2023-08-17 | 2023-08-17 | Integrated packaging valve module for low-temperature pipeline of dual-fuel ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866370U (en) |
-
2023
- 2023-08-17 CN CN202320951615.7U patent/CN219866370U/en active Active
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