CN110285320A - A kind of automobile-used LNG gas tank plate air pressure testing device of ore - Google Patents
A kind of automobile-used LNG gas tank plate air pressure testing device of ore Download PDFInfo
- Publication number
- CN110285320A CN110285320A CN201910595836.3A CN201910595836A CN110285320A CN 110285320 A CN110285320 A CN 110285320A CN 201910595836 A CN201910595836 A CN 201910595836A CN 110285320 A CN110285320 A CN 110285320A
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- China
- Prior art keywords
- jackscrew
- ventilation
- fastening
- edge
- hole
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of automobile-used LNG gas tank plate air pressure testing devices of ore, solve the problems, such as that conventional plate air pressure testing device is not used on LNG gas tank, the automobile-used LNG gas tank plate air pressure testing device of the ore, including DATA REASONING unit and test compress ventilation unit in tank;It includes annular brace seat, gas source pipeline, ventilation jackscrew, fastening jackscrew that test, which compresses ventilation unit,;For annular brace cover for seat mounted in connecing outside edge, ventilation jackscrew is axially arranged with gas passage, and is inserted on the gas phase hole for connecing edge after passing through annular brace seat threaded hole, and be connected to gas phase hole, the other end and gas source pipeline connection;Fastening jackscrew is after its correspondence annular brace seat upper screwed hole and connects edge appearance face contact;DATA REASONING unit includes the accommodating chamber for being fixed on the end for connecing edge, liquidometer extension signal wire, pressure gauge in tank;Accommodating chamber is connected to edge liquid level sensor hole is connect;Liquidometer extends signal wire and is arranged in accommodating chamber, and pressure gauge is mounted on accommodating chamber end.
Description
Technical field
The present invention relates to a kind of gas tank experimental rigs, and in particular to a kind of automobile-used LNG gas tank plate air pressure testing device of ore.
Background technique
Liquified natural gas tank can provide the energy for a plurality of types of vehicles.Wherein there is a kind of liquified natural gas tank of model
(hereinafter referred to as LNG gas tank) is suitable for 350 tonnes of ore cars, and LNG gas tank provides LNG fuel for ore car, and the tank body point is inside and outside
Two layers, inner tank body must carry out gas pressure test, but LNG gas tank and the LNG tank car of conventional design, LNG container after finalization of the manufacture
It is entirely different etc. automobile-used tank body structure compared.
The tank body of conventional design at conventional gas tank inner tank body 16 and conventional gas tank outer tank body 17 as shown in Figure 1, be provided with more
A routine gas tank pipeline 18, in gas pressure test, can weld the attachment devices such as interim flange 20 on conventional gas tank nozzle 19, with
Gas source pipeline 12 and the connection of pressure gauge 11 can complete gas pressure test, again remove attachment device after the completion of to be tested.
As shown in Fig. 2, LNG gas tank inner tank body 13 and LNG gas tank outer tank body 14 are to meet LNG on edge 1 by inner canister is arranged in
Gas tank interlayer pipeline 15, liquid phase hole, gas phase hole and the connection of liquid level sensor hole, liquid phase hole are used for the input of LNG gas tank liquid
Output, gas phase hole are used for the input and output of LNG gas tank gas, and liquid level sensor hole is used for LNG gas tank liquid level in use
The installation of sensor.Channel where liquid phase hole, gas phase hole and liquid level sensor hole is mutually indepedent;All liquid in-out, gas
It is realized by connecing the different apertures of edge, and the nearly 2Mpa of pressure of gas pressure test;And not set pipeline on edge is connect, liquid phase hole,
Not set screw thread at gas phase hole and liquid level sensor hole, at the same connect mustn't be welded on edge makeshift device (if welding makeshift device,
It will be destroyed when going and removing and connect edge).Therefore, it is impossible to which conventional plate air pressure testing device is used in LNG gas tank.
Summary of the invention
Present invention aim to address LNG gas tanks to connect not set pipeline on edge, the not set screw thread of tapping, while connecing edge
On mustn't weld makeshift device, lead to not conventional problem of the plate air pressure testing device on LNG gas tank, and one kind is provided
The automobile-used LNG gas tank plate air pressure testing device of ore.
To achieve the above object, the technical solution of the invention is as follows:
A kind of automobile-used LNG gas tank plate air pressure testing device of ore, be characterized in that including DATA REASONING unit in tank and
Test compresses ventilation unit;
It includes annular brace seat, gas source pipeline and jackscrew that test, which compresses ventilation unit,;
Annular brace seat is ring structure and is sleeved on the connecing outside edge of LNG gas tank, along week on the ring wall of annular brace seat
To uniformly distributed four threaded holes;
Jackscrew quantity is four, and four jackscrews and the threaded hole correspond;
Wherein one or two jackscrew is the ventilation jackscrew for being axially arranged with gas passage, and one of ventilation jackscrew passes through
It is inserted into after threaded hole on the gas phase hole for connecing edge;Described gas passage one end is connected to gas phase hole, and the other end and gas source pipeline connect
It is logical;
Remaining jackscrew is fastening jackscrew, and fastening jackscrew connects after being each passed through its corresponding threaded hole with the edge outer surface that connects
Touching;
DATA REASONING unit includes accommodating chamber, liquidometer extension signal wire, pressure gauge in tank;
Accommodating chamber one end is fixed on the acies portion that connects, and accommodating chamber is connected to edge liquid level sensor hole is connect;
Liquidometer extends signal wire and is arranged in accommodating chamber, and pressure gauge is mounted on the accommodating chamber other end.
It further, further include that ventilation jackscrew and the ventilation top connect between edge gas phase hole, ventilation top are set
For cylindrical structure, ventilation top successively offers level-one through-hole, secondary through holes and three-level threaded hole along axial direction;
Jackscrew of ventilating includes the tail portion, middle part and head set gradually along axial direction;
The middle part includes the first thread segment set gradually, clamping section, the second thread segment;
Second thread segment outer diameter > the first thread segment outer diameter > is clamped the tail portion section outer diameter > outer diameter;
First thread segment is adapted with the three-level threaded hole;
Ventilation jackscrew is inserted on ventilation top, and the tail portion pass through after the level-one through-hole with connect edge gas phase hole and match
It closes, the first thread segment is located in secondary through holes, and clamping section is located in the three-level threaded hole.
Further, ventilation jackscrew head is quadrangle square toes or hexagonal square toes.
Further, the ventilation top is provided with rubber pad with the position for connecing edge appearance face contact.
It further, further include that fastening jackscrew and the fastening top connect between edge outer surface, fastening top are set
For cylindrical structure, inner hollow, fastening top is equipped with step blind hole, and the aperture of step blind hole is screw thread;
The fastening jackscrew includes the first thread segment set gradually along axial direction, clamping section, the second thread segment and head;
Second thread segment outer diameter > the first thread segment outer diameter > is clamped section outer diameter;
First thread segment is adapted with fastening top upper screwed hole;
Fastening jackscrew is inserted on fastening top, and the first thread segment is internal positioned at fastening top, and clamping section is positioned at fastening top
Head thread hole it is interior.
Further, the through-hole of fastening jackscrew axis is provided perpendicular on fastening jackscrew head.
Further, fastening jackscrew head is quadrangle square toes or hexagonal square toes.
Further, the fastening top is provided with rubber pad with the position for connecing edge appearance face contact.
The present invention has the advantages that
1. experimental rig is fixed on and connects on edge by DATA REASONING unit and test compression ventilation unit in the tank in the present invention,
The gas pressure test that can be realized LNG gas tank promotes the research and development of LNG gas tank;Avoid using existing plate air pressure testing device and
The problem of method can not use on LNG gas tank.
2. liquidometer signal wire in tank is placed in accommodating chamber, the channel that is connected to liquid level sensor hole by accommodating chamber with
Channel where liquid phase hole, gas phase hole is mutually indepedent, can avoid liquidometer signal wire by logical where gas phase hole when gas pressure test
The high-speed flow that road generates impacts and causes to damage.
3. by the cooperation of fastening jackscrew and fastening top, ventilation jackscrew and ventilation top, on fastening jackscrew or ventilation top
When silk rotation and stationary annular support base, top can keep opposing stationary with edge is connect, and protection connects edge surface during fastening
It is not scratched, avoids leading to fatigue crack because scratching the scratch formed.
4. annular brace seat four direction inwardly compresses respectively and connects edge, it is ensured that connect sealing of the hole of edge radial direction in test
Property, for annular brace seat using high-intensitive material production, can avoid the device will not cause the problems such as failing because pressure is excessive,
It ensure that the safety and reliability of gas pressure test.
5. rubber pad is arranged with the surface that edge contacts is connect in fastening top and ventilation top, it is ensured that it is single that test compresses ventilation
During fastening, protection connects edge surface and is not scratched member.
6. connecing cushioning rubber pad in the aperture on edge when test, the leakproofness of gas pressure test can be improved.
7. the through-hole and its head on fastening top are the setting of quadrangle square toes or hexagonal square toes, can be convenient for fastening jackscrew
Screw in annular brace seat;Ventilation top head is the setting of quadrangle square toes or hexagonal square toes, can screw in ring convenient for the jackscrew that will ventilate
Shape support base.
Detailed description of the invention
Fig. 1 is conventional automobile-used gas tank structure chart;
Fig. 2 is LNG gas tank structure chart in the present invention;
Fig. 3 is the device experiment schematic diagram bright using this law;
Fig. 4 is that test compresses ventilation unit main view;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the structure chart of fastening jackscrew;
Fig. 7 is the cross-sectional view of fastening top;
Fig. 8 is the cross-sectional view of ventilation jackscrew;
Fig. 9 is the cross-sectional view of ventilation top.
Appended drawing reference is as follows:
1- connects edge, and 2-, which is tested, compresses ventilation unit, DATA REASONING unit in 3- tank, 4- annular brace seat, 5- fastening jackscrew,
6- fastening top, 7- ventilation jackscrew, 8- ventilation top, 9- accommodating chamber, 10- liquidometer extend signal wire, 11- pressure gauge, 12- gas
Source capsule road, 13-LNG gas tank inner tank body, 14-LNG gas tank outer tank body, 15-LNG gas tank interlayer pipeline, 16- routine gas tank inner canister
Body, 17- routine gas tank outer tank body, 18- routine gas tank pipeline, 19- routine gas tank nozzle, the interim flange of 20-.
Specific embodiment
The contents of the present invention are described in further detail below in conjunction with the drawings and specific embodiments:
As shown in figs. 3 to 9, the automobile-used LNG gas tank plate air pressure testing device of the ore, including 3 He of DATA REASONING unit in tank
Test compresses ventilation unit 2;
As shown in Figure 4, Figure 5, test compresses ventilation unit 2 and includes annular brace seat 4, fastening jackscrew 5, fasten top 6, is logical
Pneumatic jack silk 7, ventilation top 8, gas source pipeline 12;
Annular brace seat 4 is ring structure and is sleeved on the connecing outside edge 1 of LNG gas tank, edge on the ring wall of annular brace seat 4
It is circumferential to be evenly distributed with four threaded holes;
As shown in fig. 7, fastening top 6 is cylindrical structure, a side of inner hollow, fastening top 6 is equipped with spiral shell
Pit;
As shown in fig. 6, fastening jackscrew 5 include the first thread segment set gradually along axial direction, clamping section, the second thread segment with
And head;
The through-hole of 5 axis of fastening jackscrew is provided perpendicular on 5 head of fastening jackscrew, and 5 head of fastening jackscrew is quadrangle
Square toes, quadrangle square toes and through-hole can be used as the position of the force torsion of fastening jackscrew 5.
First thread segment is adapted with 6 upper screwed holes of fastening top;
Wherein, 5 second thread segment outer diameter of fastening jackscrew is greater than the first thread segment outer diameter, and the first thread segment outer diameter is greater than clamping
Section outer diameter;
When assembly, fastening jackscrew 5 is each passed through corresponding threaded hole on annular brace seat 4,5 first thread segment of fastening jackscrew
The threaded hole on fastening top 6 is screwed in, 5 first thread segment of fastening jackscrew is internally positioned, and clamping section is located at the fastening and comes directly towards 6 spiral shells
The position of pit;
During rotation is held out against, 5 first thread segment of fastening jackscrew rotates fastening jackscrew 5 in fastening top 6, and second
Thread segment rotates and drives fastening top 6 mobile to 1 surface of edge is connect, and fastening top 6 can keep opposing stationary with 1 surface of edge is connect,
Play the role of protection and connect 1 open surface of edge, avoids the scuffing for connecing 1 surface of edge, after assembly, 6 appearances of fastening top
The rubber pad in face and connect 1 appearance face contact of edge.
As shown in figure 9, ventilation top 8 is cylindrical structure, ventilation top 8 successively offers level-one through-hole along axial direction, two
Grade through-hole and three-level threaded hole;
As shown in figure 8, ventilation jackscrew 7 is provided in the axial direction with the gas passage through its both ends, and ventilate 7 end of jackscrew with
Connect the connection of 1 gas phase hole of edge;The ventilation another end of jackscrew 7 is connect with gas source pipeline 12;Ventilation jackscrew 7 can play compression and fill, put
The effect of gas.
Jackscrew 7 of ventilating includes the tail portion, middle part and head set gradually along axial direction;Ventilation 7 head of jackscrew is quadrangle side
Head setting, quadrangle square toes can be used as the position of the ventilation force torsion of jackscrew 7.
The middle part includes the first thread segment set gradually, clamping section, the second thread segment;
First thread segment is adapted with the three-level threaded hole;
Wherein, the second thread segment outer diameter is greater than the first thread segment outer diameter, and the first thread segment outer diameter is greater than clamping section outer diameter, card
Section outer diameter is connect greater than tail portion outer diameter;
When assembly, ventilation jackscrew 7 is each passed through corresponding threaded hole on annular brace seat 4,7 first thread segment of jackscrew of ventilating
The threaded hole on ventilation top 8 is screwed in, ventilation 7 tail portion of jackscrew passes through the level-one through-hole, and the first thread segment is located at secondary through holes
Interior, clamping section is located at the interior of the three-level threaded hole;
Jackscrew 7 ventilate during rotation is held out against, the first thread segment rotates in ventilation top 8, and the second thread segment turns
It moves and drives ventilation top 8 mobile to 1 surface of edge is connect, ventilation top 8 can keep opposing stationary with 1 surface of edge is connect, and play protection
The effect for connecing 1 open surface of edge avoids the scuffing for connecing 1 surface of edge;After assembly, the insertion of ventilation 7 tail portion of jackscrew connects edge 1
The gas passage in gas phase hole, ventilation jackscrew 7 is connected to the inflation/deflation, it can be achieved that during tank body gas pressure test with 1 gas phase hole of edge is connect;
Ventilation comes directly towards the rubber pad of 8 outer surfaces and connects 1 appearance face contact of edge.
As shown in figure 4, ventilation jackscrew 7 respectively has one with ventilation top 8 there are three fastening jackscrew 5 and fastening top 6 are each,
After being each passed through its corresponding threaded hole assembling, annular brace seat 4 is sleeved on the connecing outside edge 1 of LNG gas tank.
Test compression ventilation unit 2 compresses respectively in four direction connects edge 1, mutually balances so that connecing pressure suffered by edge 1.
As shown in figure 3, DATA REASONING unit 3 includes accommodating chamber 9, liquidometer extension signal wire 10, pressure gauge 11 in tank;
Accommodating chamber 9 is fixed on the end for connecing edge 1, and accommodating chamber 9 is connected to 1 liquid level sensor hole of edge is connect;
Liquidometer extends signal wire 10 and is arranged in accommodating chamber 9, and pressure gauge 11 is mounted on 9 end of accommodating chamber.
After pressure gauge 11 can also be by being changed to ventilation jackscrew 7 for one of fastening jackscrew 5, it is connected to ventilation jackscrew 7
End, ventilation jackscrew 7 is connected to edge liquid phase hole is connect, to realize the detection of pressure.
The automobile-used LNG gas tank of the ore carries out gas pressure test method using device of the present invention, comprising the following steps:
Liquidometer extension signal wire 10 is placed in accommodating chamber 9, realizes that protection liquidometer extends the effect of signal wire 10,
The impact of air-flow during being filled and deflated by when protecting it from gas pressure test;Two pieces of pressure gauges 11 are installed in 9 end of accommodating chamber, to survey
Pressure when measuring gas pressure test in tank;By the installation of accommodating chamber 9 to connecing 1 end of edge, and makes accommodating chamber 9 and connect the level sensing of edge 1
Device Kong Liantong;
By fastening jackscrew 5 and fastening top 6, ventilation jackscrew 7 and 8 installation of ventilation top on annular brace seat 4, then by ring
Shape support base 4, which is sleeved on, to be connect on edge 1, the cushioning rubber pad in gas phase hole on connecing edge 1, and the alignment of ventilation 7 tail portion of jackscrew is made to connect edge 1
The aperture of gas phase hole;
By rotational fastener jackscrew 5 and ventilation jackscrew 7, annular brace seat 4 is fixed on and is connect on edge 1;Ventilation jackscrew 7 at this time
Tail portion be connected to 1 gas phase hole of edge is connect;Gas source pipeline 12 is connected on the head of ventilation jackscrew 7;
Applied voltage test is carried out, after the completion of test, gas in tank is discharged by ventilation jackscrew 7, it is logical to remove test compression
DATA REASONING unit 3 in gas unit 2 and tank.
The above description is only an embodiment of the present invention, and it is not intended to limit the protection scope of the present invention, all to utilize the present invention
Equivalent structure transformation made by specification and accompanying drawing content, is applied directly or indirectly in other relevant technical fields, and wraps
It includes in scope of patent protection of the invention.
Claims (8)
1. a kind of automobile-used LNG gas tank plate air pressure testing device of ore, it is characterised in that: including DATA REASONING unit (3) in tank and examination
It tests and compresses ventilation unit (2);
It includes annular brace seat (4), gas source pipeline (12) and jackscrew that test, which compresses ventilation unit (2),;
Annular brace seat (4) be ring structure and be sleeved on LNG gas tank to connect edge (1) external, on the ring wall of annular brace seat (4)
It is evenly distributed four threaded holes;
Jackscrew quantity is four, and four jackscrews and the threaded hole correspond;
Wherein one or two jackscrew is the ventilation jackscrew (7) for being axially arranged with gas passage, and one of ventilation jackscrew (7) is worn
It is inserted on the gas phase hole for connecing edge (1) after crossing threaded hole;Described gas passage one end is connected to gas phase hole, the other end and gas source pipe
Road (12) connection;
Remaining jackscrew is fastening jackscrew (5), and fastening jackscrew (5) is each passed through after its corresponding threaded hole and connects edge (1) outside with described
Surface contact;
DATA REASONING unit (3) includes accommodating chamber (9), liquidometer extension signal wire (10), pressure gauge (11) in tank;
Accommodating chamber (9) one end, which is fixed on, connects edge (1) end, and accommodating chamber (9) is connected to edge (1) liquid level sensor hole is connect;
Liquidometer extends signal wire (10) setting in accommodating chamber (9), and pressure gauge (11) is mounted on accommodating chamber (9) other end.
2. the automobile-used LNG gas tank plate air pressure testing device of a kind of ore according to claim 1, it is characterised in that: further include setting
It sets in ventilation jackscrew (7) and the ventilation top (8) connect between edge (1) gas phase hole, ventilation top (8) is cylindrical structure,
Ventilation top (8) successively offers level-one through-hole, secondary through holes and three-level threaded hole along axial direction;
Ventilation jackscrew (7) includes the tail portion, middle part and head set gradually along axial direction;
The middle part includes the first thread segment set gradually, clamping section, the second thread segment;
Second thread segment outer diameter > the first thread segment outer diameter > is clamped the tail portion section outer diameter > outer diameter;
First thread segment is adapted with the three-level threaded hole;
Ventilation jackscrew (7) is inserted on ventilation top (8), and the tail portion after the level-one through-hole and connects edge (1) gas phase
Hole cooperation, the first thread segment are located in secondary through holes, and clamping section is located in the three-level threaded hole.
3. the automobile-used LNG gas tank plate air pressure testing device of a kind of ore according to claim 2, it is characterised in that: the ventilation
Jackscrew (7) head is quadrangle square toes or hexagonal square toes.
4. the automobile-used LNG gas tank plate air pressure testing device of a kind of ore according to claim 3, it is characterised in that: the ventilation
Top (8) is provided with rubber pad with the position for connecing edge (1) appearance face contact.
5. the automobile-used LNG gas tank plate air pressure testing device of ore according to any one of claims 1 to 4, it is characterised in that: further include
It is arranged in fastening jackscrew (5) and the fastening top (6) connect between edge (1) outer surface, fastening top (6) is cylindrical body knot
Structure, fastening top (6) are equipped with step blind hole, and the aperture of step blind hole is threaded hole;
The fastening jackscrew (5) includes the first thread segment set gradually along axial direction, clamping section, the second thread segment and head;
Second thread segment outer diameter > the first thread segment outer diameter > is clamped section outer diameter;
First thread segment is adapted with fastening top (6) upper screwed hole;
Fastening jackscrew (5) is inserted on fastening top (6), and the first thread segment is internal positioned at fastening top (6), and clamping section is positioned at tight
Gu coming directly towards in (6) threaded hole.
6. the automobile-used LNG gas tank plate air pressure testing device of a kind of ore according to claim 5, it is characterised in that: the fastening
The through-hole of fastening jackscrew (5) axis is provided perpendicular on jackscrew (5) head.
7. the automobile-used LNG gas tank plate air pressure testing device of a kind of ore according to claim 6, it is characterised in that: the fastening
Jackscrew (5) head is quadrangle square toes or hexagonal square toes.
8. the automobile-used LNG gas tank plate air pressure testing device of a kind of ore according to claim 7, it is characterised in that: the fastening
Top (6) is provided with rubber pad with the position for connecing edge (1) appearance face contact.
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CN201910595836.3A CN110285320B (en) | 2019-07-03 | 2019-07-03 | LNG gas pitcher atmospheric pressure test device for ore car |
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CN102705507A (en) * | 2012-06-14 | 2012-10-03 | 珠海格力电器股份有限公司 | Sealing device for compression test of pressure vessel |
CN203298885U (en) * | 2013-05-14 | 2013-11-20 | 上海维萨仪表制造有限公司 | Temperature-measurement and pressure-measurement data acquisition head |
CN103499484A (en) * | 2013-09-18 | 2014-01-08 | 中材科技(苏州)有限公司 | Pressure testing seal fixture of automobile LNG (Liquefied Natural Gas) cylinder |
CN103575365A (en) * | 2013-11-08 | 2014-02-12 | 北京亿华通科技有限公司 | Liquidometer and vehicle-mounted LNG gas bottle |
CN204479415U (en) * | 2015-02-23 | 2015-07-15 | 山东优力重工装备有限公司 | Vehicular liquefied natural gas bottle pressure experimental device |
CN105782716A (en) * | 2016-03-20 | 2016-07-20 | 北京绿能高科天然气应用技术研究院有限公司 | Liquid density measurement method applied to LNG storage tank |
CN206479294U (en) * | 2017-01-10 | 2017-09-08 | 徐工集团工程机械有限公司 | A kind of sealing property testing system of engineering machinery reductor |
DE102017208537A1 (en) * | 2017-05-19 | 2018-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Pressure vessel with datalogger |
CN206818275U (en) * | 2017-06-19 | 2017-12-29 | 张家港中集圣达因低温装备有限公司 | Low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging |
CN208222070U (en) * | 2018-03-28 | 2018-12-11 | 新兴能源装备股份有限公司 | LNG pressure liquid level emasuring device |
CN109237193A (en) * | 2018-10-24 | 2019-01-18 | 海洋石油工程(青岛)有限公司 | The no-welding expanding blocking device of pressure test of snap ring-type |
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