CN109459225A - Low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand - Google Patents
Low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand Download PDFInfo
- Publication number
- CN109459225A CN109459225A CN201811568187.XA CN201811568187A CN109459225A CN 109459225 A CN109459225 A CN 109459225A CN 201811568187 A CN201811568187 A CN 201811568187A CN 109459225 A CN109459225 A CN 109459225A
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- Prior art keywords
- valve
- shut
- cavity
- pipe clamp
- half module
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000004088 simulation Methods 0.000 title claims abstract description 23
- 239000002828 fuel tank Substances 0.000 title claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003949 liquefied natural gas Substances 0.000 abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract 2
- 239000000446 fuel Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
本发明涉及一种低温液化车用燃料罐车操作箱管路设备堵漏模拟试验台，包括管道、第一截止阀、第二截止阀、截止阀‑管道弯头连接堵漏装置和截止阀阀杆堵漏装置，第一截止阀和第二截止阀安装于管道中，第一截止阀与管道之间形成弯头连接结构，管道与液氮气瓶连接，截止阀‑管道弯头连接堵漏装置安装在第一截止阀与管道的弯头连接处，截止阀阀杆堵漏装置安装在第二截止阀的阀杆上。本发明能够对液化天然气罐车操作箱内部截止阀与管道弯头连接处以及截止阀阀杆的泄漏封堵进行模拟实验，达到验证堵漏效果的目的。
The invention relates to a simulation test bench for leakage plugging of the operating box of a fuel tanker for a low-temperature liquefied vehicle, comprising a pipeline, a first cut-off valve, a second cut-off valve, a stop valve-pipeline elbow connection plugging device, and a valve stem of the cut-off valve Plugging device, the first stop valve and the second stop valve are installed in the pipeline, an elbow connection structure is formed between the first stop valve and the pipeline, the pipeline is connected with the liquid nitrogen bottle, and the stop valve-pipe elbow is connected to the leak plugging device. At the connection between the first shut-off valve and the elbow of the pipeline, the shut-off valve stem leakage plugging device is installed on the valve stem of the second shut-off valve. The invention can carry out a simulation experiment on the leakage blocking of the connection between the stop valve and the pipe elbow in the operation box of the liquefied natural gas tanker and the valve stem of the stop valve, so as to achieve the purpose of verifying the leakage blocking effect.
Description
Technical field
The invention belongs to the technical fields of pipeline equipment leakage blockage simulation, more particularly to a kind of low-temperature liquefaction vehicle fuel tank
Vehicle control box pipeline equipment leakage blockage simulation testing stand.
Background technique
The energy is the power of foundation stone and development existing for human society.With the development of the social economy, being fired facing to fossil
Expect the challenge of lack of energy, the exploitation of new energy is paid close attention in countries in the world one after another, and wherein natural gas is with its cleaning, pollution-free, efficiency
Many advantages, such as high and favored.Currently, there are two types of the mainstream storing modes of natural gas: high-pressure gaseous storage and low temperature liquid
Storage, liquefied petroleum gas (LNG) tank car using the mode storing liquid of Cryo Heat Insulation natural gas.
Liquefied natural gas (LNG) storage tank car is the land main mobile storage for transporting LNG, but due to LNG itself
Physical characteristic, incident of leakage happens occasionally in liquefied natural gas (LNG) storage tank car driving process, row especially in control box
Transfer pipeline, flange, valve of column etc. are the high risk positions that liquefied natural gas (LNG) storage tank car leaks.
Wouldn't exist in the prior art can connect liquefied natural gas tank car control box internal closure valve with channel bend
Place, shut-off valve valve rod carry out the experimental provision that leakage blocks simulation.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipments
Leakage blockage simulation testing stand, can be to liquefied natural gas tank car control box internal closure valve and channel bend junction and shut-off valve
The leakage of valve rod, which blocks, carries out simulated experiment.
The technical solution adopted by the present invention to solve the technical problems is to provide a kind of low-temperature liquefaction vehicle fuel tank car behaviour
Make case pipeline equipment leakage blockage simulation testing stand, including pipeline, the first shut-off valve and the second shut-off valve, first shut-off valve and
Two shut-off valves are installed in pipeline, and elbow connection structure, the pipeline and liquid nitrogen are formed between first shut-off valve and pipeline
Gas cylinder connection further includes shut-off valve-channel bend connection device for plugging and shut-off valve valve rod device for plugging, the shut-off valve-pipe
Elbow connection device for plugging in road is mounted on the elbow junction of the first shut-off valve and pipeline, the shut-off valve-channel bend connection
Device for plugging includes pipe clamp upper cover and pipe clamp lower cover, and the pipe clamp upper cover and pipe clamp lower cover are mutually matched obvolvent and connect and internal shape
The first cavity being connect at the first shut-off valve is accommodated with channel bend, between the pipe clamp upper cover and the Mosaic face of pipe clamp lower cover,
Cooperate nested leakproof seal slot and leakproof seal abaculus, the leakproof seal slot are respectively equipped with inside and outside first cavity
Seal gasket is equipped between leakproof seal abaculus, lid is equipped with the first hole for injecting glue being connected to the first cavity on the pipe clamp,
First rubber injecting valve is installed, the shut-off valve valve rod device for plugging is mounted on the valve rod of the second shut-off valve in first hole for injecting glue
On, the shut-off valve valve rod device for plugging includes the first Hough half module and the second Hough half module, the first Hough half module and the
Two Hough half modules are mutually matched obvolvent connection and internal the second cavity for forming the first shut-off valve valve rod of receiving, first Hough
Half module and the second Hough half module have seal groove at the both ends of the second cavity, and sealing foot pad is equipped with inside the seal groove,
The first Hough half module is equipped with the second hole for injecting glue being connected to the second cavity, installs the second injecting glue in second hole for injecting glue
Valve.
Outside is respectively set to mutual corresponding ring flange in the pipe clamp upper cover and pipe clamp lower cover, and the ring flange is provided with
First bolt hole passes through the first bolt hole by the first connection bolt between the pipe clamp upper cover and pipe clamp lower cover and carries out obvolvent company
Connect locking.
The leakproof seal abaculus is arranged on pipe clamp on lid along the interior edge of the first cavity and outer respectively, and the leak-stopping is close
Sealing groove is arranged under pipe clamp on lid along the interior edge of the first cavity and outer respectively.
First hole for injecting glue is set as two, and two the first hole for injecting glue are respectively arranged at the two close end end of the first cavity
Position.
First cavity is in the right angle bend cavity body structure of rounded corner.
The two sides of the first Hough half module and the second Hough half module are respectively equipped with the connection wing, the first Hough half module
The connection wing of the connection wing and the second Hough half module correspondence is provided with the second bolt hole, the first Hough half module and the second Hough half module
Between by second connection bolt pass through the second bolt hole carry out obvolvent connection locking.
Second hole for injecting glue is set as two, and two the second hole for injecting glue are respectively arranged at the two close end end of the second cavity
Position.
Second cavity is integrally cylindrical, middle part forms expanding cavity.
The testing stand further includes pedestal, and the pipeline is set to above the table top of pedestal.
Tool fitting pallet is equipped with below the table top of the pedestal.
Beneficial effect
In the present invention, simulation On Lng Leakage is connect with liquid nitrogen gas cylinder by pipeline, by the first shut-off valve
It is connect device for plugging with the elbow junction of pipeline installation shut-off valve-channel bend, installation is cut on the valve rod of the second shut-off valve
Only valve valve rod device for plugging carries out leakage blockage simulation to leak position at two respectively, can be realized and operates to liquefied natural gas tank car
The leakage of case internal closure valve and channel bend junction and shut-off valve valve rod, which blocks, carries out simulated experiment.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram that shut-off valve of the present invention-channel bend connects device for plugging.
Fig. 3 is the structural schematic diagram for the pipe clamp upper cover that shut-off valve-channel bend connects device for plugging.
Fig. 4 is the structural schematic diagram for the pipe clamp lower cover that shut-off valve-channel bend connects device for plugging.
Fig. 5 is the structural schematic diagram of shut-off valve valve rod device for plugging of the present invention.
Fig. 6 is the structural schematic diagram of the first Hough half module of shut-off valve valve rod device for plugging.
Fig. 7 is the structural schematic diagram of the second Hough half module of shut-off valve valve rod device for plugging.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
A kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand as shown in Figure 1, including
Pedestal 5, pipeline 1, the first shut-off valve, the second shut-off valve 2, shut-off valve-channel bend connection device for plugging 3 and shut-off valve valve rod are stifled
Leakage device 4.Pipeline 1 is set to above the table top of pedestal 5, and pipeline 1 is connect with liquid nitrogen gas cylinder (not shown), the platform of pedestal 5
Tool fitting pallet is equipped with below face.First shut-off valve and the second shut-off valve 2 are installed in pipeline 1, the first shut-off valve and pipeline 1
Between formed elbow connection structure.
Shut-off valve-channel bend connection device for plugging 3 is mounted on the elbow junction of the first shut-off valve Yu pipeline 1.Such as figure
Shown in 2-4, shut-off valve-channel bend connection device for plugging 3 includes pipe clamp upper cover 3-1 and pipe clamp lower cover 3-2.Pipe clamp upper cover 3-1
The first chamber that obvolvent connects and the first shut-off valve of internal formation receiving is connect with 1 elbow of pipeline is mutually matched with pipe clamp lower cover 3-2
Road 3-3.Outside is respectively set to mutual corresponding ring flange in pipe clamp upper cover 3-1 and pipe clamp lower cover 3-2, and ring flange is provided with first
Between bolt hole 3-8, pipe clamp upper cover 3-1 and pipe clamp lower cover 3-2 by first connection bolt 3-9 pass through the first bolt hole 3-8 into
Row obvolvent connection locking.First cavity 3-3 is in the right angle bend cavity body structure of rounded corner.
It is respectively equipped between pipe clamp upper cover 3-1 and the Mosaic face of pipe clamp lower cover 3-2, inside and outside the first cavity 3-3 mutually
Cooperate nested leakproof seal slot 3-4 and leakproof seal abaculus 3-5, leakproof seal abaculus 3-5 is respectively along the first cavity 3-3
Edge and outer are arranged on pipe clamp upper cover 3-1, and leakproof seal slot 3-4 exists along the interior edge of the first cavity 3-3 and outer setting respectively
On pipe clamp lower cover 3-2.Seal gasket is equipped between leakproof seal slot 3-4 and leakproof seal abaculus 3-5.
Pipe clamp upper cover 3-1 is equipped in the first hole for injecting glue 3-6, the first hole for injecting glue 3-6 being connected to the first cavity 3-3 and installs
First rubber injecting valve 3-7.First hole for injecting glue 3-6 is set as two, and two the first hole for injecting glue 3-6 are respectively arranged at the first cavity 3-3
Two close end end position.It can be to shut-off valve of the collet inside the first cavity 3-3 and pipeline by the first hole for injecting glue 3-6
Elbow junction carries out injecting glue sealing, the generation that the elbow link position can be effectively prevent to reveal.
Shut-off valve valve rod device for plugging 4 is mounted on the valve rod of the second shut-off valve 2.Institute as illustrated in figs. 5-7, shut-off valve valve rod
Device for plugging 4 includes the first Hough half module 4-1 and the second Hough half module 4-2.
First Hough half module 4-1 and the second Hough half module 4-2 is mutually matched obvolvent connection and internal formed accommodates first section
Only the second cavity of 2 valve rod of valve.The two sides of first Hough half module 4-1 and the second Hough half module 4-2 are respectively equipped with the connection wing, and first
The connection wing of the connection wing of Hough half module 4-1 and the second Hough half module 4-2 are corresponding to be provided with the second bolt hole 4-7, the first Hough half
The second bolt hole 4-7 is passed through by the second connection bolt 4-8 between mould 4-1 and the second Hough half module 4-2 and carries out obvolvent connection lock
Tightly.Second cavity is integrally cylindrical, middle part forms expanding cavity.
First Hough half module 4-1 and the second Hough half module 4-2 has seal groove 4-4, institute at the both ends of the second cavity
It states and is equipped with sealing foot pad inside seal groove 4-4.First Hough half module 1 is equipped with the second hole for injecting glue 4-5 being connected to the second cavity,
Second hole for injecting glue 4-6 is set as two, and two the second hole for injecting glue 4-6 are respectively arranged at the two close end end position of the second cavity.
Second rubber injecting valve 4-6 is installed, it is close injecting glue can be carried out into the second cavity by the second rubber injecting valve 4-6 in the second hole for injecting glue 4-5
Envelope, the generation for effectivelying prevent the elbow link position to reveal.
The low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand can be to liquified natural gas tank
The leakage of vehicle control box internal closure valve and channel bend junction and shut-off valve valve rod, which blocks, carries out simulated experiment.Pass through to
Liquid nitrogen is filled in shut-off valve and its connecting line, is simulated its shut-off valve leakage process, is blocked, reached using dedicated device for plugging
To the purpose for verifying its plugging effect.
The testing stand is arranged according to LNG tank vehicle shut-off valve and its connecting line position, and shut-off valve and its pipeline are prior
Open up artificial defect together, bypass connection liquid nitrogen gas cylinder.When test, LNG is simulated by liquid nitrogen, is operated as follows:
(1) it opens liquid nitrogen bottle valve and adjusts pressure in pressure to LNG tank vehicle tank；
(2) liquid nitrogen from artificial defect by generating leakage in pipeline injection testing pipeline；
(3) operator dresses special protection, and shut-off valve-channel bend connection device for plugging 3 and shut-off valve valve rod are blocked up
Leakage device 4 is assemblied on the shut-off valve and its connecting line on testing stand；
(4) injecting glue, observation envelope are carried out to shut-off valve-channel bend connection device for plugging 3 and shut-off valve valve rod device for plugging 4
Stifled effect；
(5) after the completion of testing, liquid nitrogen gas cylinder is closed.
Claims (10)
1. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand, including pipeline (1), first section
Only valve and the second shut-off valve (2), first shut-off valve and the second shut-off valve (2) are installed in pipeline (1), first cut-off
Elbow connection structure is formed between valve and pipeline (1), the pipeline (1) connect with liquid nitrogen gas cylinder, it is characterised in that: further include cutting
Only valve-channel bend connection device for plugging (3) and shut-off valve valve rod device for plugging (4), the shut-off valve-channel bend connection are stifled
Leakage device (3) is mounted on the elbow junction of the first shut-off valve Yu pipeline (1), the shut-off valve-channel bend connection leak stopping dress
Setting (3) includes pipe clamp upper cover (3-1) and pipe clamp lower cover (3-2), the pipe clamp upper cover (3-1) and mutual of pipe clamp lower cover (3-2)
It is connected with obvolvent and internal formed accommodates the first cavity (3-3) that the first shut-off valve is connect with pipeline (1) elbow, on the pipe clamp
It is nested that mutual cooperation is respectively equipped between lid (3-1) and the Mosaic face of pipe clamp lower cover (3-2), inside and outside the first cavity (3-3)
Leakproof seal slot (3-4) and leakproof seal abaculus (3-5), the leakproof seal slot (3-4) and leakproof seal abaculus (3-5) it
Between be equipped with seal gasket, the pipe clamp upper cover (3-1) is equipped with the first hole for injecting glue (3-6) for being connected to the first cavity (3-3), institute
It states in the first hole for injecting glue (3-6) and the first rubber injecting valve (3-7) is installed, the shut-off valve valve rod device for plugging (4) is mounted on second section
Only on the valve rod of valve (2), the shut-off valve valve rod device for plugging (4) includes the first Hough half module (4-1) and the second Hough half module
(4-2), the first Hough half module (4-1) and the second Hough half module (4-2) are mutually matched that obvolvent connects and internal formed accommodates
Second cavity of the first shut-off valve (2) valve rod, the first Hough half module (4-1) and the second Hough half module (4-2) are in the second chamber
The both ends in road have seal groove (4-4), and sealing foot pad, the first Hough half module are equipped with inside the seal groove (4-4)
(1) it is equipped with the second hole for injecting glue (4-5) being connected to the second cavity, the second rubber injecting valve is installed in second hole for injecting glue (4-5)
(4-6)。
2. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: outside is respectively set to mutual corresponding flange in the pipe clamp upper cover (3-1) and pipe clamp lower cover (3-2)
Disk, the ring flange are provided with the first bolt hole (3-8), pass through first between the pipe clamp upper cover (3-1) and pipe clamp lower cover (3-2)
It connects bolt (3-9) and passes through the first bolt hole (3-8) progress obvolvent connection locking.
3. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: the leakproof seal abaculus (3-5) is arranged along the interior edge of the first cavity (3-3) and outer in pipe clamp respectively
In upper cover (3-1), the leakproof seal slot (3-4) is arranged along the interior edge of the first cavity (3-3) and outer in pipe clamp lower cover respectively
On (3-2).
4. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: first hole for injecting glue (3-6) is set as two, and two the first hole for injecting glue (3-6) are respectively arranged at first
The two close end end position of cavity (3-3).
5. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: first cavity (3-3) is in the right angle bend cavity body structure of rounded corner.
6. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: the two sides of the first Hough half module (4-1) and the second Hough half module (4-2) are respectively equipped with the connection wing, institute
The connection wing correspondence of the connection wing and the second Hough half module (4-2) of stating the first Hough half module (4-1) is provided with the second bolt hole (4-
7), second is passed through by the second connection bolt (4-8) between the first Hough half module (4-1) and the second Hough half module (4-2)
Bolt hole (4-7) carries out obvolvent connection locking.
7. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: second hole for injecting glue (4-6) is set as two, and two the second hole for injecting glue (4-6) are respectively arranged at second
The two close end end position of cavity.
8. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: second cavity is integrally cylindrical, middle part forms expanding cavity.
9. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 1
Platform, it is characterised in that: the testing stand further includes pedestal (5), and the pipeline (1) is set to above the table top of pedestal (5).
10. a kind of low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation test according to claim 9
Platform, it is characterised in that: tool fitting pallet is equipped with below the table top of the pedestal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568187.XA CN109459225A (en) | 2018-12-21 | 2018-12-21 | Low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568187.XA CN109459225A (en) | 2018-12-21 | 2018-12-21 | Low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand |
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| CN109459225A true CN109459225A (en) | 2019-03-12 |
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|---|---|---|---|
| CN201811568187.XA Pending CN109459225A (en) | 2018-12-21 | 2018-12-21 | Low-temperature liquefaction vehicle fuel tank car control box pipeline equipment leakage blockage simulation testing stand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110503871A (en) * | 2019-08-08 | 2019-11-26 | 湖北三江航天江北机械工程有限公司 | LNG double-purpose, which is unloaded, is pressurized the method for fast mfg of sled |
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