CN104442528A - Tank lorry used for low-temperature liquid road transportation - Google Patents
Tank lorry used for low-temperature liquid road transportation Download PDFInfo
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- CN104442528A CN104442528A CN201410436673.1A CN201410436673A CN104442528A CN 104442528 A CN104442528 A CN 104442528A CN 201410436673 A CN201410436673 A CN 201410436673A CN 104442528 A CN104442528 A CN 104442528A
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- endogenous pyrogen
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Abstract
The invention provides a tank lorry used for low-temperature liquid road transportation and belongs to the technical field of copious cooling heat insulation pressure container storage and transportation equipment. The tank lorry comprises a tractor, a storage tank, an operation box and a traveling mechanism. The storage tank is of a horizontal double-cylinder high-vacuum multilayer heat insulation low-temperature container structure and is composed of an inner container and a case. The case is made of a low alloy steel plate. A steel channel ring for keeping outer pressure of the case stable is externally arranged and welded to the case. Two molecular sieve low-temperature adsorbing devices are arranged an inner container cylinder. Normal-temperature adsorbing devices are arranged on the two sides of the inner wall of the case respectively. A composite supporting structure of radial combination supporting is adopted between the inner container and the case, so that the situations that in the operating process, due to jolting, the inner container and the case of the storage tank shift relatively, the structure deforms, and due to the fact that the inner container is filled with liquefied natural gas and contracted in a chilling mode, a support or a pipe line is pulled cut are avoided; a pipeline, a valve and an instrument of the storage tank are distributed in the operation box in a centralized mode. The tank lorry has the advantages that the self weight of equipment is reduced to the maximum degree, the largest weight space can be reserved and used for loading goods, and the tank lorry has good safety, maneuverability and reliability.
Description
Technical field
The invention belongs to cryogenic insulating pressure container storage equipment technical field, be specifically related to a kind of tank car for cryogenic liquid road transport (i.e. LNG low-temperature transport tank car).
Background technology
Liquefied natural gas is efficient clean energy resource, is the optimal fuel of protection of the environment.Current China liquefied natural gas industry is in the flourish stage, industry, traffic, civilian etc. in be widely used.Liquefied natural gas main component is liquefied methane, and liquefied methane content accounts for more than 90%, and other also comprises the compositions such as ethane, propane, ethene, and they all belong to inflammable medium.At present along with the fast development of industrial gasses industry in world wide, in order to improve transport, the efficiency of storage of gas and reduce transport, storage cost, " liquefied " has become one of important directions of industrial gasses industry development, the corresponding construction having driven China's low-temperature heat-insulation pressure container.
Summary of the invention
The object of the present invention is to provide a kind of tank car for cryogenic liquid road transport, there is the feature of higher conveying efficiency, lower ton-kilomiter cost, larger one way fortune dress ability, there is good safety, manoevreability and reliability simultaneously.
In order to realize foregoing invention object, the scheme that the present invention adopts is to provide a kind of low-temperature transport tank car storing transport LNG, comprises tractor truck 1, storage tank 2, control box 3 and traveling gear 4.Storage tank 2 is horizontal pair of cylinder high vacuum multiple layer heat insulation low-temperature (low temperature) vessel structure, is made up of endogenous pyrogen 5 and shell 6.Endogenous pyrogen 5 is made for austenite stainless steel plate material, inside is provided with wave subduer 7, described wave subduer 7 comprises base pipe 10 and stay bearing plate 11, the axis of base pipe 10 and endogenous pyrogen 5 dead in line, stay bearing plate 11 is in horn-like, its small end opening part welds with base pipe 10 outside face, and large end opening place welds with endogenous pyrogen 5 inside face, this wave subduer 7 effectively reduce vehicle in the process of moving in tank body liquid to the impact of all directions and concussion.Endogenous pyrogen 5 outer wall is wound around the coated paper 8 of thermal insulation of tens of floor height heat-insulating property, and carries out high-vacuum technology process between interlayer, makes storage tank 2 can reach superadiabatic performance.For making endogenous pyrogen 5 Homogeneous cooling, the cold shock and the liquefied natural gas car load when filling that reduce liquid are steady, be provided with second fill pipe 15 at endogenous pyrogen 5 top, realize liquid spray woods.Shell 6 is made for low alloy steel plate, in order to reduce mezzanine space, increase endogenous pyrogen 5 volume, weld external for the channel-section steel circle 12 maintaining shell 6 stability of external pressure with shell 6, under the prerequisite meeting national standard and industry standard, effectively achieve the maximization of tank volume.For maintaining the degree of vacuum of interlayer, endogenous pyrogen 5 cylindrical shell arranges two molecular sieve cryogenic absorption devices 9, and wall both sides place normal temperature adsorption plant 13 (palladium oxide) respectively in the enclosure; Adopt the composite supporting structure that Radial Combinations supports between endogenous pyrogen 5 and shell 6, with ensure storage tank 2 be in operation can not make to occur between endogenous pyrogen 5 and shell 6 because top punching relative displacement and structural distortion and endogenous pyrogen 5 filled liquefied natural gas after shrinkage and break the phenomenon of support and pipeline.The pipeline of storage tank 2, valve, instrument centralized arrangement, in control box 3, are beneficial to operation and management.
Wave subduer 7 of the present invention comprises base pipe 10 and stay bearing plate 11, the axis of base pipe 10 and endogenous pyrogen 5 dead in line, stay bearing plate 11 is in horn-like, its small end opening part welds with base pipe 10 outside face, large end opening place welds with endogenous pyrogen 5 inside face, this wave subduer 7 effectively reduce vehicle in the process of moving in tank body liquid to the impact of all directions and concussion.
Shell is provided with two covers communicated with endogenous pyrogen and fills pipe, and first fills pipe causes bottom endogenous pyrogen, for filling LNG directly to tank car; Second fills pipe causes endogenous pyrogen top and extends to endogenous pyrogen left end, be provided with multiple hole equably at all lower surfaces of circle of steel tube, LNG passing hole realizes top spray, and the BOG in endogenous pyrogen is taken back liquid phase, reduce the pressure of endogenous pyrogen, avoid the take-off that safety valve is unnecessary.
Be provided with a safe explosion-proof device 22 at the top of shell, prevent due to the fluid leakage in endogenous pyrogen and cause shell to explode, ensure device security reliability service.
The invention has the advantages that, reduce the deadweight of equipment to greatest extent, to retain maximum weight-space for lade, there is the feature of higher conveying efficiency, lower ton-kilomiter cost, larger one way fortune dress ability, there is good safety, manoevreability and reliability simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of LNG low-temperature transport tank car.
Fig. 2 is the assembly drowing of LNG low-temperature transport tank car tank body, i.e. the assembly drowing of storage tank 2, control box 3 in Fig. 1.
Fig. 3 is II enlarged drawing in Fig. 2.
Fig. 4 is I enlarged drawing in Fig. 2.
Fig. 5 be in Fig. 4 B-B to section-drawing.
Fig. 6 is wave subduer lateral plan.
Fig. 7 is wave subduer cross-sectional view.
Fig. 8 be in Fig. 2 A-A to the channel-section steel circle schematic diagram analysed and observe.
In figure, draw car car 1, storage tank 2, control box 3, traveling gear 4, endogenous pyrogen 5, shell 6, wave subduer 7, adiabatic coated paper 8, molecular sieve cryogenic absorption device 9, base pipe 10, stay bearing plate 11, channel-section steel circle 12, normal temperature adsorbent units 13, first fill pipe 14, second and fill pipe 15, angle ring 16, brace panel 17, glass fibre reinforced plastic backbone 18, plug 19, stiffening plate 20, all-glass paper 21, safe explosion-proof device 22
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
The object of the present invention is to provide a kind of low-temperature transport tank car for LNG accumulating, there is the feature of higher conveying efficiency, lower ton-kilomiter cost, larger one way fortune dress ability, there is good safety, manoevreability and reliability simultaneously.Fig. 1 is the structural representation for cryogenic liquid road transport tank car, and as shown in the figure, LNG low-temperature transport tank car comprises tractor truck 1, storage tank 2, control box 3 and traveling gear 4.Storage tank 2 is made up of endogenous pyrogen 5 and shell 6, and endogenous pyrogen 5 and shell 6 are steel plate and roll the horizontal cylindrical tank body be welded, and two ends are butterfly end socket.The material of endogenous pyrogen 5 is austenitic stainless steel S30408, shell 6 material is carbon structural steels Q345R, the barrel outer surface of shell 6 is welded with some channel-section steel circles 12, for strengthening the intensity of shell 6, rigidity and stability, endogenous pyrogen 5 is welded with the molecular sieve low temperature adsorbent device 9 filling adsorbent, the coated paper 8 of endogenous pyrogen 5 outside face wound insulation, adiabatic coated paper 8 is formed by multilayer aluminum foil paper and all-glass paper apart windings, being wound around the number of plies is 40 layers, the thickness bundled after tightening is 20 ~ 22mm, wherein the outer wall of endogenous pyrogen 5 is close to by all-glass paper, the selection being wound around the number of plies and thickness proves ensureing that under best insulation effect prerequisite, materials are economized most through cold performance test.Utilize vacuum pump set by the interlayer vacuum-pumping between endogenous pyrogen 5 and shell 6, make every effort to being As time goes on reduced to lowest possible degree by what passed to endogenous pyrogen 5 by convection current, conduction and radiation approach to heat with this, maintain low temperature system normally to work, guarantee that LNG preserves for a long time.The various valves of tank car, instrument and safety attachment centralized arrangement, in the control box 3 of tank car, are beneficial to management and operation.
The middle part of endogenous pyrogen 5 is provided with six wave subduers 7, the structure of wave subduer 7 as shown in the figure, comprise base pipe 10 and stay bearing plate 11, base pipe 10 is in circle shell-like, the dead in line of its axis and endogenous pyrogen 5, stay bearing plate 11 is in horn-like, its small end opening part welds with base pipe 10 outside face, large end opening place welds with endogenous pyrogen 5 inside face, 3 large end openings are towards the left end of endogenous pyrogen 5, another 3 large end openings are towards the right-hand member of endogenous pyrogen 5, due to can buffer action be played in horn-like stay bearing plate 11, to reduce in vehicle travel process liquid in tank body to the impact of all directions and concussion, ensure that safety, in order to improve anti-ripple effect further.In the present invention, stay bearing plate 11 have employed more advanced structure, and stay bearing plate 11 greatly end upper and lower part is provided with the upper and lower breach of horizontal surface cut formation respectively, and stay bearing plate 11 radially presses rib groove, circumferentially 30 ° of layouts.
In order to realize the maximization of endogenous pyrogen 5 volume, reducing the space of interlayer between endogenous pyrogen 5 and shell 6, will the external outside face being welded on shell 6 of channel-section steel circle 12 of shell 6 intensity, rigidity and stability be improved.Like this, both increase the volume of endogenous pyrogen 5, achieve higher conveying efficiency, lower ton-kilomiter cost, larger one way fortune dress ability; Meanwhile, channel-section steel circle 12 is external is welded in the circularity that shell 6 outside face effectively can ensure shell 6, facilitates endogenous pyrogen 5 and 6 groups pairs, shell.
Shell 6 is provided with two covers communicated with endogenous pyrogen 5 and fills pipe, and first fills pipe 14 causes bottom endogenous pyrogen 5, for filling LNG directly to tank car.Second fills pipe 15 causes endogenous pyrogen 5 top and extends to endogenous pyrogen 5 left end, be positioned at second of endogenous pyrogen 5 top fill pipe 15 circle of steel tube week lower surface be provided with multiple hole equably.Like this, when using second to fill pipe 15, the BOG of endogenous pyrogen 5 gas-phase space, from endogenous pyrogen 5 top spray, can be taken back liquid phase, reduce the pressure of endogenous pyrogen 5, avoid the take-off that safety valve is unnecessary by cold LNG.
In order to improve the support strength of shell 6 pairs of endogenous pyrogens 5, and ensure that endogenous pyrogen 5 is indeformable, the inside of endogenous pyrogen 5 is symmetrically welded twice angle ring 16 at line 100mm place, centre of support, at endogenous pyrogen outside face welding brace panel 17, utilize glass fibre reinforced plastic backbone 18 as support, the position that shell 6 is corresponding with glass fibre reinforced plastic backbone 18 has through hole, and glass fibre reinforced plastic backbone 18 one end contacts with brace panel 17, the other end is sealed by plug 19 through the hole on shell 6, housing outer surface weld reinforcement plate 20.Like this, glass fibre reinforced plastic backbone 18, between brace panel 17 and plug 19, serves supporting role; Glass fibre reinforced plastic backbone 18 coefficient of thermal conductivity that inside plug fills out all-glass paper 21 is very little, effectively can ensure the transmission reducing heat.
Be provided with a safe explosion-proof device 22 at the top of shell 6, prevent due to the fluid leakage in endogenous pyrogen 5 and cause shell 6 to explode, ensure device security reliability service.
In order to ensure the persistence of degree of vacuum, endogenous pyrogen 5 top is provided with molecular sieve low temperature adsorbent device 9, molecular sieve low temperature adsorbent is that 5A and 13X molecular sieve is used in combination, the two volume ratio is 1:1,5A molecular sieve adsorption capacity is large, but constantly regeneration activating, absorption object is positive structure hydro carbons and diameter is less than 5 × 10
-10the molecule of m; Though the adsorption capacity of 13X is less than 5A, can absorb oil vapour, absorption object is that diameter is less than 10 × 10
-10each quasi-molecule of m.In addition, shell 6 inwall both sides are respectively arranged with normal temperature adsorbent units 13, and normal temperature adsorbent is palladium oxide, for absorbing hydrion free in interlayer.The use of low temperature adsorbent device 9 and normal temperature adsorbent units 13 substantially increases the degree of vacuum of interlayer between shell 6 and endogenous pyrogen 5, thus improves adiabatic effect.
Claims (4)
1., for a tank car for cryogenic liquid road transport, comprise tractor truck, storage tank, control box and traveling gear, it is characterized in that, storage tank (2) is horizontal pair of cylinder high vacuum multiple layer heat insulation low-temperature (low temperature) vessel structure, is made up of endogenous pyrogen (5) and shell (6), endogenous pyrogen (5) is made for austenite stainless steel plate material, inside is provided with wave subduer (7), endogenous pyrogen (5) outer wall is wound around the coated paper of thermal insulation (8) of tens of floor height heat-insulating property, and high vacuum is carried out between interlayer, make storage tank (2) reach superadiabatic performance, be provided with second at endogenous pyrogen (5) top and fill pipe (15), realize liquid spray woods, shell (6) is made for low alloy steel plate, to maintain that the channel-section steel circle (12) of shell (6) stability of external pressure is external to be welded with shell (6), endogenous pyrogen (5) cylindrical shell arranges two molecular sieve cryogenic absorption devices (9), wall both sides place the composite supporting structure adopting Radial Combinations to support between normal temperature adsorption plant (13) endogenous pyrogen (5) and shell (6) respectively in the enclosure, with ensure storage tank (2) be in operation can not make to occur between endogenous pyrogen (5) and shell (6) because top punching relative displacement and structural distortion and endogenous pyrogen (5) filled liquefied natural gas after shrinkage and breaking support and pipeline, the pipeline of storage tank (2), valve, instrument centralized arrangement are in control box (3).
2. the tank car for cryogenic liquid road transport according to claim 1, it is characterized in that, described wave subduer (7) comprises base pipe (10) and stay bearing plate (11), the axis of base pipe (10) and endogenous pyrogen (5) dead in line, stay bearing plate (11) is in horn-like, its small end opening part welds with base pipe (10) outside face, large end opening place welds with endogenous pyrogen (5) inside face, this wave subduer (7) effectively reduce vehicle in the process of moving in tank body liquid to the impact of all directions and concussion.
3. the tank car for cryogenic liquid road transport according to claim 1, is characterized in that, shell is provided with two covers communicated with endogenous pyrogen and fills pipe, and first fills pipe causes bottom endogenous pyrogen, for filling LNG directly to tank car; Second fills pipe causes endogenous pyrogen top and extends to endogenous pyrogen left end, be provided with multiple hole equably at all lower surfaces of circle of steel tube, LNG passing hole realizes top spray, and the BOG in endogenous pyrogen is taken back liquid phase, reduce the pressure of endogenous pyrogen, avoid the take-off that safety valve is unnecessary.
4. the tank car for cryogenic liquid road transport according to claim 1, it is characterized in that, be provided with a safe explosion-proof device (22) at the top of shell, prevent due to the fluid leakage in endogenous pyrogen and cause shell to explode, ensure device security reliability service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436673.1A CN104442528A (en) | 2014-08-29 | 2014-08-29 | Tank lorry used for low-temperature liquid road transportation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436673.1A CN104442528A (en) | 2014-08-29 | 2014-08-29 | Tank lorry used for low-temperature liquid road transportation |
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| CN104442528A true CN104442528A (en) | 2015-03-25 |
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| CN201410436673.1A Pending CN104442528A (en) | 2014-08-29 | 2014-08-29 | Tank lorry used for low-temperature liquid road transportation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179926A (en) * | 2015-10-09 | 2015-12-23 | 江苏德邦工程有限公司 | Low-temperature liquefied gas storage tank |
| CN107826536A (en) * | 2017-10-31 | 2018-03-23 | 嘉兴市嘉源节能环保科技有限公司 | The method of double-layer vacuum low temperature container tank and land-and-water transportation transport low temperature ethylene |
| CN108609314A (en) * | 2018-06-27 | 2018-10-02 | 中车长江车辆有限公司 | Storage-transportation tank body and tank container, horizontal tank, road tank vehicle, tank car |
| CN109110320A (en) * | 2018-10-26 | 2019-01-01 | 苏州圣汇装备有限公司 | A kind of low temperature liquid tank structure peculiar to vessel |
| CN109630864A (en) * | 2018-12-03 | 2019-04-16 | 成都科瑞尔低温设备有限公司 | A kind of low-temperature storage tank having axial load-bearing and limit function |
| CN109827065A (en) * | 2019-03-04 | 2019-05-31 | 张家港市科华化工装备制造有限公司 | Cryogenic liquid storage tank |
| CN110131568A (en) * | 2019-05-29 | 2019-08-16 | 江西制氧机有限公司 | A kind of LNG transfer cask |
| CN112324643A (en) * | 2021-01-04 | 2021-02-05 | 湖南省特种设备检验检测研究院 | Vacuumizing method and vacuumizing device for low-temperature tank car |
| CN113188033A (en) * | 2021-04-09 | 2021-07-30 | 新兴能源装备股份有限公司 | LNG low-temperature transportation tank car |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109110320A (en) * | 2018-10-26 | 2019-01-01 | 苏州圣汇装备有限公司 | A kind of low temperature liquid tank structure peculiar to vessel |
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| CN109630864B (en) * | 2018-12-03 | 2023-08-15 | 成都科瑞尔低温设备有限公司 | Low-temperature storage tank with axial bearing and limiting functions |
| CN109630864A (en) * | 2018-12-03 | 2019-04-16 | 成都科瑞尔低温设备有限公司 | A kind of low-temperature storage tank having axial load-bearing and limit function |
| CN109827065A (en) * | 2019-03-04 | 2019-05-31 | 张家港市科华化工装备制造有限公司 | Cryogenic liquid storage tank |
| CN110131568A (en) * | 2019-05-29 | 2019-08-16 | 江西制氧机有限公司 | A kind of LNG transfer cask |
| CN110131568B (en) * | 2019-05-29 | 2024-04-26 | 江西制氧机有限公司 | LNG transport tank |
| CN112324643A (en) * | 2021-01-04 | 2021-02-05 | 湖南省特种设备检验检测研究院 | Vacuumizing method and vacuumizing device for low-temperature tank car |
| CN113188033A (en) * | 2021-04-09 | 2021-07-30 | 新兴能源装备股份有限公司 | LNG low-temperature transportation tank car |
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Application publication date: 20150325 |