CN102174983B - Vertical-type low-temperature heat-insulation gas cylinder - Google Patents
Vertical-type low-temperature heat-insulation gas cylinder Download PDFInfo
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- CN102174983B CN102174983B CN201110009453A CN201110009453A CN102174983B CN 102174983 B CN102174983 B CN 102174983B CN 201110009453 A CN201110009453 A CN 201110009453A CN 201110009453 A CN201110009453 A CN 201110009453A CN 102174983 B CN102174983 B CN 102174983B
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Abstract
The invention relates to a vertical-type low-temperature heat-insulation gas cylinder which comprises a shell, a liner, a distributor, an in-cylinder pipeline of a pipeline control system, a neck pipe and an insulation layer; the shell comprises a shell body and a vacuumizing connector which is connected with the shell body in a sealed mode; the liner comprises a liner body and a coil pipe connector which is connected with the liner in a sealed mode and is positioned at the bottom of the liner body; the heat insulation layer is arranged on the outer wall of the liner body; the distributor is a steel integrated component which is provided with an internal channel; the liner is positioned in the inner cavity of the shell body; the distributor is fixed on the shell body in a sealed mode; the upper end of the neck pipe is fixed on the distributor in a sealed mode; the lower end of the neck pipe is arranged at the periphery of the liner body and is fixed on the liner body in a sealed mode, thus the liner body is suspended in the shell body; the in-cylinder pipeline of the pipeline control system comprises a supercharging coil pipe, a vaporization coil pipe and a seal plate assembly; and the seal plate assembly comprises an inner cavity first pipe, liquid inlet and outlet pipes, a gas discharging pipe and a seal plate. The vertical-type low-temperature heat-insulation gas cylinder provided by the invention has the advantages of good heat insulation effect, is convenient to use and is safe and reliable.
Description
Technical field
The present invention relates to the container of a kind of splendid attire, storing cryogenic fluids.
Background technique
At present, in industries such as machinery, chemical industry, medicine, need a large amount of gases such as oxygen, argon gas and nitrogen that use; When preparing these gases; Then adopt the mode of high pressure compressed to store,, and fill and transport all comparatively inconvenience because the high-pressure cylinder gas-storing capacity is less through high-pressure cylinder.Cryogenic insulated cylinder has another name called Dewar vessel, can be used for cryogenic liquides (also can be described as cryogenic liquid gas) such as storing liquid nitrogen, liquid oxygen, liquified natural gas.Because the gas storage amount of cryogenic insulated cylinder is big, safe and reliable, make that the storage of liquid gas and transportation are convenient more economically.
Common cryogenic insulated cylinder is vertical, is formed by unit constructions such as inner bag, shell, vaporizer and valves.Cryogenic insulated cylinder promptly through solving the mode of transmission of heat, thermoconvection, these three kinds heat transmission of thermal radiation, is realized the storage of liquid gas long period to having carried out good thermal insulation between cryogenic liquid gas in the inner bag and the external environment.Because the inner bag of cryogenic insulated cylinder and shell can not be adiabatic fully, the liquid gas and the external environment temperature difference in the bottle are bigger, so the relative evaporation of existing cryogenic insulated cylinder is mostly more than 2%.
Chinese patent document CN2637881Y has announced a kind of welded insulated gas cylinder, and this gas cylinder can be used for storing cryogenic liquid gas, but needs external vaporizer when using, and could use after utilizing extraneous heat energy to make the liquid gas vaporization.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of insulation effect, easy to use, and safe and reliable vertical cryogenic insulated cylinder.
The technological scheme that realizes the object of the invention is: a kind of vertical cryogenic insulated cylinder comprises the interior pipeline of the bottle of shell, inner bag, distributor, pipeline control system, neck tube and heat insulation layer;
Shell comprises housing and the airtight mouthpiece that vacuumizes that is connected on the housing; Housing is provided with center hole in the top; Inner bag comprises inner lining and the airtight coil pipe mouthpiece that is connected on the inner lining and is positioned at the inner lining bottom; The top of inner lining has 3 attachment holes; Heat insulation layer is arranged on the outer wall of inner lining; Heat insulation layer is by the aluminum foil paper of fire-resistant ultra-fine fibre glass paper and high reflecting rate poststack mutually, and from inside to outside successively wrapped on the outer wall of inner lining and form, the wrapped number of plies is 20 to 40 layers;
Distributor is the steel integral piece that is provided with the inner passage; The inner passage of distributor comprises exocoel first passage, exocoel second channel, exocoel third channel, inner chamber first passage, inner chamber second channel and inner chamber third channel; Distributor also is provided with the ring isolation channel; The ring isolation channel is opened on the lower end surface of distributor; The inner passage of distributor is equipped with two ports that are called side port and lower end mouth respectively, and the side port of each inner passage derives from the circumferential lateral surface of distributor, and the lower end mouth of each inner passage derives from the lower end surface of distributor; The exocoel second channel is connected in distributor with the inner chamber second channel; The lower end mouth of exocoel first passage, exocoel second channel, exocoel third channel all is positioned at outside the scope that the ring isolation channel centered on, and the lower end mouth of inner chamber first passage, inner chamber second channel and inner chamber third channel all is positioned at the scope that the ring isolation channel is centered on;
Inner bag is arranged in the inner chamber of housing; Distributor is arranged on the central hole of housing, and distributor is by airtight being fixed on the housing in its week lower end laterally; The upper end of neck tube is stretched in the ring isolation channel of distributor, and both are airtight is fixed together; The lower end mouth of neck tube is airtight to be fixed on the inner lining, thereby makes inner lining be suspended in the housing, and 3 attachment holes at the top of inner lining are surrounded by the lower end mouth of neck tube;
Pipeline comprises supercharging coil pipe, vaporization coil pipe, inner chamber first pipe, liquid in-out pipe and exhaust tube in the bottle of pipeline control system; Inner chamber first pipe, liquid in-out pipe pass corresponding 1 attachment hole at inner lining top separately respectively with exhaust tube and are fixedly connected with inner lining is airtight; The upper end-hole of inner chamber first pipe links to each other with the lower end mouth of the inner chamber first passage of distributor, and the lower tube section of inner chamber first pipe stretches into inner lining downwards, and the lower end mouth of inner chamber first pipe is positioned at the top of inner lining; The upper end-hole of liquid in-out pipe links to each other with the lower end mouth of the inner chamber second channel of distributor, and the lower tube section of liquid in-out pipe stretches into inner lining downwards, and the lower end mouth of liquid in-out pipe is positioned at the bottom of inner lining; The upper end-hole of exhaust tube links to each other with the lower end mouth of the inner chamber third channel of distributor, and the lower tube section of exhaust tube stretches into inner lining downwards, and the lower end mouth of exhaust tube is positioned at the top of inner lining; The supercharging coil pipe is the integral piece that a copper pipe constitutes with the vaporization coil pipe; The supercharging coil pipe is arranged in the space between housing and the inner lining, and around the inner lining setting; The coil pipe mouthpiece of the lower port of supercharging coil pipe and inner bag be positioned at outer airtight fixed connection of connection part of inner lining, thereby be connected with the inner chamber of inner lining, the lower end mouth with the exocoel first passage of distributor links to each other the upper port of supercharging coil pipe from the below; The vaporization coil pipe is divided into fluid inlet pipeline section, coil pipe portion and the fluid output pipeline section that links to each other successively; Also promptly the vaporize fluid inlet end of coil pipe of the external port of fluid inlet pipeline section; Also promptly the vaporize fluid outlet of coil pipe of the external port of fluid output pipeline section; The coil pipe portion of vaporization coil pipe is fixed on the inwall of casing cylinder, and the setting of rising twist; The fluid inlet end of vaporization coil pipe links to each other with the lower end mouth of the exocoel second channel of distributor, and the fluid outlet of vaporization coil pipe links to each other with the lower end mouth of the exocoel third channel of distributor.
The housing of above-mentioned shell comprises casing cylinder, shell upper cover and shell lower seal head; Casing cylinder is cylinder barrel shaped;
The shell upper cover is for Open Side Down and have center hole and the arc-shaped curved surface plate of mounting hole; The center hole of shell upper cover also is the center hole of housing; Vacuumize on the position at the airtight mounting hole place that is fixedly connected on this arc-shaped curved surface plate of mouthpiece; The diameter at the connecting port place that is positioned at the below of this arc-shaped curved surface plate is identical with the diameter of casing cylinder, and this arc-shaped curved surface plate by its connecting port on the airtight upper end-hole that is fixed on casing cylinder in top;
The shell lower seal head is the arc-shaped curved surface plate that opening makes progress, and the diameter at the connecting port place that is positioned at the top of this arc-shaped curved surface plate is identical with the diameter of casing cylinder, and this arc-shaped curved surface plate by its connecting port on the airtight lower end mouth that is fixed on casing cylinder in below.
The inner lining of above-mentioned inner bag comprises inner bag cylindrical shell, inner bag upper cover and inner bag lower seal head; The inner bag cylindrical shell is cylinder barrel shaped;
The inner bag upper cover is the arc-shaped curved surface plate that Open Side Down; The diameter at the connecting port place that is positioned at the below of this arc-shaped curved surface plate is identical with the diameter of inner bag cylindrical shell, and this arc-shaped curved surface plate by its connecting port on the airtight upper end-hole that is fixed on the inner bag cylindrical shell in top;
The inner bag lower seal head is the arc-shaped curved surface plate that opening made progress and had mounting hole; The coil pipe mouthpiece is airtight to be fixedly connected on the position at mounting hole place of this arc-shaped curved surface plate; The diameter at the connecting port place that is positioned at the top of this arc-shaped curved surface plate is identical with the diameter of inner bag cylindrical shell, and this arc-shaped curved surface plate by its connecting port on the airtight lower end mouth that is fixed on the inner bag cylindrical shell in below.
Above-mentioned vertical cryogenic insulated cylinder also comprises the outer pipeline of bottle of pipeline control system; The outer pipeline of bottle of pipeline control system comprises pressure charging valve, combined pressure regulating valve, gas valve, liquid phase valve and bleed valve; Combined pressure regulating valve is provided with inlet opening, output inlet opening, delivery outlet, boost-up circuit, economized circuit and pressure-regulating device, and boost-up circuit is between inlet opening and output inlet opening, and economized circuit is between output inlet opening and delivery outlet; Pressure-regulating device is to be used for the pressure threshold of the fluid that flows into from the inlet opening and parts that the pressure threshold of the fluid that flows out from delivery outlet is regulated simultaneously;
The import of pressure charging valve links to each other with the side port of the exocoel first passage of distributor through connecting tube; The outlet of pressure charging valve links to each other with the inlet opening of combined pressure regulating valve through connecting tube; The output inlet opening of combined pressure regulating valve links to each other with the side port of the inner chamber first passage of distributor through connecting tube; The delivery outlet of combined pressure regulating valve links to each other with the side port of the exocoel second channel of distributor through connecting tube; Externally export the port of gas when the outside port of gas valve is to use, the internal port of gas valve links to each other with the side port of the exocoel third channel of distributor through connecting tube; The outside port of liquid phase valve inputs or outputs the port of cryogenic liquid gas when being to use, the internal port of liquid phase valve links to each other with the inner chamber second channel side port of distributor through connecting tube; Externally emit the gas in the inner lining when outside port of bleed valve is to use so that carry out liquid and fill or be convenient to the pressure threshold of combined pressure regulating valve is confirmed, the internal port of bleed valve links to each other with the side port of the inner chamber third channel of distributor through connecting tube.
The outer pipeline of bottle of aforementioned tube path control system also comprises security component; Security component comprises pressure gauge, safety valve, rupture disk assembly and cross fitting; The inner chamber first passage of distributor also is provided with another side port that is called second side port; Second side port of the inner chamber first passage of distributor links to each other with cross fitting through connecting tube, and other 3 ports of this cross fitting link to each other with pressure gauge, safety valve and rupture disk assembly respectively.
Pressure charging valve, gas valve, liquid phase valve and the bleed valve of the outer pipeline of bottle of aforementioned tube path control system are low temperature resistant angle valve.
Above-mentioned vertical cryogenic insulated cylinder also comprises the liquid level assembly, and the liquid level assembly comprises protective cover and level meter; Said distributor is cylindrical, also is provided with the center hole that is positioned at central position of up/down perforation, and the center hole of distributor is provided with internal thread; The center hole and the distributor of ring isolation channel and distributor are coaxially set; The top of said inner lining also has the 4th attachment hole, and is positioned within the lower end mouth of neck tube;
Protective cover is airtight being fixed on the distributor from the top, and be positioned at the central hole of distributor; The upper end look-out station of level meter is in the transparent position of protective cover; Level meter pass successively from the top down by its connecting rod distributor center hole and inner lining top the 4th attachment hole and make the middle and lower part of level meter be arranged in inner lining; The flange part that is positioned at the look-out station below of level meter screws on the internal thread of the center hole of distributor; Connecting rod is airtight to be fixed on the inner lining, and the lower end of level meter is positioned at the bottom of inner lining.
Above-mentioned vertical cryogenic insulated cylinder also comprises guard circle pillar, guard circle and base; Base is fixed on the housing from the below, and is positioned at the bottom of housing; The guard circle pillar has 3 to 5, and each guard circle pillar is weldingly fixed on the housing from the top by lower end separately, and is positioned at the top of housing; Guard circle is weldingly fixed on the upper tip of each guard circle pillar from the top.
The present invention has positive effect:
(1) inner bag of vertical cryogenic insulated cylinder of the present invention and the interlayer between the shell vacuumize, and link to each other through neck tube between inner lining and the housing, because the sectional area of joint is less, so in order to stop transmission of heat.Heat insulation layer is folded mutually by the aluminum foil paper of fire-resistant ultra-fine fibre glass paper and high reflecting rate, successively wrappedly on inner lining, constitute, and the wrapped number of plies is more than 20 layers that reflecting rate is high, in order to stop thermal radiation.The insulation effect of this vertical cryogenic insulated cylinder is good, can the storing liquid air, liquid oxygen, liquid nitrogen, liquid argon gas, liquified natural gas etc., and not only the gas storage amount is big, and relative evaporation is economical and practical below 2%.
(2) the pipeline Control System Design of vertical cryogenic insulated cylinder of the present invention is reasonable; Pressure continous-stable in the time of can making air feed through the combination modulating valve in the bottle; The combination modulating valve was preferentially outwards supplied the gas in the inner lining when pressure of the inside of a bottle was excessive in addition, had the function of saving gas.This vertical cryogenic insulated cylinder usefulness gas, fill conveniently, and safe and reliable.
(3) the present invention is provided with special distributor, and serves as the operation hinge with this distributor, can carry out the can cryogenic liquide to the Cryo Heat Insulation bottle easily, can use the gas in the gas cylinder at any time, can operations such as adjust to the system pressure in the gas cylinder.
Description of drawings
Fig. 1 is a kind of schematic representation of Cryo Heat Insulation bottle of the present invention.
Fig. 2 is internal structure and the schematic representation of pipeline control system of the Cryo Heat Insulation bottle of Fig. 1.
Fig. 3 is the gas distributor at A place among Fig. 2 and the local enlarged diagram of the pipe fitting catenation principle outside inner lining, housing and the bottle.
The title of the reference character in the above-mentioned accompanying drawing is following:
Shell 1, housing 10, casing cylinder 11, shell upper cover 12, shell lower seal head 13 vacuumizes mouthpiece 14,
Inner bag 2, inner lining 20, inner bag cylindrical shell 21, inner bag upper cover 22, inner bag lower seal head 23, coil pipe mouthpiece 24,
Pipeline control system 4, supercharging coil pipe 41, vaporization coil pipe 42, the inner chamber first pipe 43-1, liquid in-out pipe 43-2; Exhaust tube 43-3, pressure charging valve 44, combined pressure regulating valve 45, inlet opening 45-1, output inlet opening 45-2; Delivery outlet 45-3, gas valve 46, liquid phase valve 47, bleed valve 48, security component 49; Pressure gauge 49-1, safety valve 49-2, rupture disk 49-3, cross fitting 49-4
Liquid level assembly 7, protective cover 71, level meter 72,
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the vertical cryogenic insulated cylinder of present embodiment comprises shell 1, inner bag 2, distributor 3, pipeline control system 4, neck tube 5, heat insulation layer 6, liquid level assembly 7, guard circle pillar 81, guard circle 82 and base 83.
See Fig. 2, shell 1 comprises housing 10 and vacuumizes mouthpiece 14.Housing 10 comprises casing cylinder 11, shell upper cover 12 and shell lower seal head 13.
Casing cylinder 11 is cylinder barrel shaped, is by after the corrosion resistant plate bending, is welded through a longitudinal weld.
Shell upper cover 12 is for Open Side Down and have center hole and the arc-shaped curved surface plate of mounting hole, and the center hole of said shell upper cover 12 also is the center hole of housing 10.Vacuumize on the position at the airtight mounting hole place that is fixedly connected on this arc-shaped curved surface plate 12 of mouthpiece 14.The diameter at the connecting port place that is positioned at the below of said arc-shaped curved surface plate 12 is identical with the diameter of casing cylinder 11, and this arc-shaped curved surface plate 12 by its connecting port on the airtight upper end-hole that is weldingly fixed on casing cylinder 11 in top.
The arc-shaped curved surface plate that shell lower seal head 13 makes progress for opening; The diameter at the connecting port place that is positioned at the top of this arc-shaped curved surface plate 13 is identical with the diameter of casing cylinder 11, and this arc-shaped curved surface plate 13 by its connecting port on the airtight lower end mouth that is weldingly fixed on casing cylinder 11 in below.
Inner bag 2 comprises inner lining 20 and coil pipe mouthpiece 24.Inner lining 20 comprises inner bag cylindrical shell 21, inner bag upper cover 22 and inner bag lower seal head 23.
Inner bag cylindrical shell 21 is cylinder barrel shaped, is by after the corrosion resistant plate bending, is welded through a longitudinal weld.
Inner bag upper cover 22 is the arc-shaped curved surface plate that Open Side Down; Have corresponding 4 attachment holes on the top of said arc-shaped curved surface plate; The diameter at the connecting port place that is positioned at the below of said arc-shaped curved surface plate 22 is identical with the diameter of inner bag cylindrical shell 21, and this arc-shaped curved surface plate 22 by its connecting port on the airtight upper end-hole that is weldingly fixed on inner bag cylindrical shell 21 in top.
Inner bag lower seal head 23 for opening upwards and have an arc-shaped curved surface plate of mounting hole.Coil pipe mouthpiece 24 is airtight to be fixedly connected on the position at mounting hole place of this arc-shaped curved surface plate 23.The diameter at the connecting port place that is positioned at the top of this arc-shaped curved surface plate 23 is identical with the diameter of inner bag cylindrical shell 21, and this arc-shaped curved surface plate 23 by its connecting port on the airtight lower end mouth that is weldingly fixed on inner bag cylindrical shell 21 in below.
Heat insulation layer 6 is arranged on the outer wall of inner lining 20.Heat insulation layer 6 is by the aluminum foil paper of fire-resistant ultra-fine fibre glass paper and high reflecting rate poststack mutually, and from inside to outside successively wrapped on the outer wall of inner lining 20 and form, the wrapped number of plies is 25 layers.
See Fig. 3, distributor 3 is for being provided with the columniform stainless steel integral piece of inner passage.The inner passage of distributor 3 comprises exocoel first passage (claim not only pressure charging valve passage) 31, exocoel second channel (claim not only pressure regulator valve second channel) 32, exocoel third channel (claim not only gas valve passage) 33, inner chamber first passage (claim not only pressure regulator valve first passage) 34, inner chamber second channel (claim not only liquid phase valve passage) 35 and inner chamber third channel (but also claiming the bleed valve passage) 36; Distributor 3 also is provided with the ring isolation channel 37 and center hole 38 with its coaxial line.Center hole 38 up/down perforation distributors 3 are positioned at the central authorities of distributor 3, and are provided with internal thread.Ring isolation channel 37 is opened on the lower end surface of distributor 3, and is provided with around center hole 38.Each inner passage of distributor 3 is equipped with two ports that are called side port and lower end mouth respectively; The side port of each inner passage derives from the circumferential lateral surface of distributor 3, and the lower end mouth of each inner passage then derives from the lower end surface of distributor 3; Inner chamber first passage 34 also comprises second side port (the claiming the security component port again) 34-2 that derives from the circumferential lateral surface of distributor 3; Exocoel second channel 32 in distributor 3, be connected with inner chamber second channel 35 (the pressure regulator valve second channel 32 that also promptly is in exocoel communicates with the liquid phase valve passage 35 that is in inner chamber).The lower end mouth of exocoel first passage 31, exocoel second channel 32, exocoel third channel 33 all is positioned at outside the scope that ring isolation channel 37 centered on, and the lower end mouth of inner chamber first passage 34, inner chamber second channel 35 and inner chamber third channel 36 then all is positioned at the scope that ring isolation channel 37 is centered on.
Still see Fig. 3, inner bag 2 is arranged in the inner chamber of housing 10, and distributor 3 is arranged on the central hole of housing 10, and distributor 3 is by airtight being weldingly fixed on the shell upper cover 12 in its week lower end laterally.The upper end of neck tube 5 is stretched in the ring isolation channel 37 of distributor 3, and both are airtight is weldingly fixed on together; Thereby airtight being weldingly fixed on of the lower end mouth of neck tube 5 makes inner lining 20 be suspended in the housing 10 on the inner bag upper cover 22,4 attachment holes at the top of inner lining 20 are surrounded by the lower end mouth of neck tube 5.
Liquid level assembly 7 comprises protective cover 71 and level meter 72.Protective cover 71 is airtight being fixed on the distributor 3 from the top, and be positioned at center hole 38 places of distributor 3.Level meter 72 is that the floating type liquid level meter is (by becoming Dulan stone low temperature Science and Technology Ltd. to make; Commercial disignation is the FYJ-1 type); The upper end look-out station of level meter 72 is in the transparent position of protective cover 71; Level meter 72 pass successively from the top down by its connecting rod distributor 3 center hole 38 and inner lining 20 inner bag upper cover 22 tops corresponding 1 attachment hole and make the middle and lower part of level meter 72 be arranged in inner lining 20; The flange part that is positioned at look-out station below of level meter 72 screws on the internal thread of the center hole 38 of distributor 3, and connecting rod is airtight to be fixed on the inner bag upper cover 22 of inner lining 20, and the lower end of level meter 72 is positioned at the bottom of inner lining 20.
See Fig. 1 and Fig. 2, pipeline control system 4 is made up of pipeline in the bottle and the outer pipeline of bottle.
Pipeline comprises supercharging coil pipe 41, vaporization coil pipe 42, inner chamber first pipe 43-1, liquid in-out pipe 43-2 and the exhaust tube 43-3 in the bottle.The outer pipeline of bottle comprises pressure charging valve 44, combined pressure regulating valve 45, gas valve 46, liquid phase valve 47, bleed valve 48 and security component 49.
Inner chamber first pipe 43-1, liquid in-out pipe 43-2 and exhaust tube 43-3 pass respectively separately inner lining 20 inner bag upper cover 22 tops corresponding 1 attachment hole and with inner bag upper cover 22 airtight fixed connections.The upper end-hole of the inner chamber first pipe 43-1 links to each other with the lower end mouth of the inner chamber first passage 34 of distributor 3, and the lower tube section of the inner chamber first pipe 43-1 stretches into inner lining 20 downwards, and the lower end mouth of the inner chamber first pipe 43-1 is positioned at the top of inner lining 20.The upper end-hole of liquid in-out pipe 43-2 links to each other with the lower end mouth of the inner chamber second channel 35 of distributor 3, and the lower tube section of liquid in-out pipe 43-2 stretches into inner lining 20 downwards, and the lower end mouth of liquid in-out pipe 43-2 is positioned at the bottom of inner lining 20.The upper end-hole of exhaust tube 43-3 links to each other with the lower end mouth of the inner chamber third channel 36 of distributor 3, and the lower tube section of exhaust tube 43-3 stretches into inner lining 20 downwards, and the lower end mouth of exhaust tube 43-3 is positioned at the top of inner lining 20.
Combined pressure regulating valve 45 is that U.S. REGO company produces.Combined pressure regulating valve 45 is provided with inlet opening 45-1, output inlet opening 45-2, delivery outlet 45-3, boost-up circuit, economized circuit and pressure-regulating device; Boost-up circuit is between inlet opening 45-1 and output inlet opening 45-2, and economized circuit is between output inlet opening 45-2 and delivery outlet 45-3.The fluid that look nut through the rotation pressure-regulating device can flow into the 45-1 from the inlet opening and the pressure threshold of the fluid that flows out from delivery outlet 45-3 regulated.The pressure threshold of inlet opening 45-1 (being called first pressure threshold) can be regulated in 0.5 to 2.5MPa scope; The pressure threshold of delivery outlet 45-3 (being called second pressure threshold) is a high definite numerical value (present embodiment is selected 0.1MPa in 0.05 to 0.15MPa scope) than first pressure threshold.First pressure threshold of combined pressure regulating valve 45 is meant that the outer hydrodynamic pressure of inlet opening 45-1 of combined pressure regulating valve 45 increases to when reaching this threshold value, the valve closing that is positioned at 45-1 place, inlet opening of combined pressure regulating valve 45, thus cut off boost-up circuit; When having only the outer pressure of the inlet opening 45-1 of combined pressure regulating valve 45 less than first pressure threshold, the valve that is positioned at 45-1 place, inlet opening could be opened, and makes the boost-up circuit conducting.Second pressure threshold of combined pressure regulating valve 45 is meant that the interior hydrodynamic pressure of delivery outlet 45-3 of combined pressure regulating valve 45 increases to when reaching this threshold value the valve opening that is positioned at delivery outlet 45-3 place of combined pressure regulating valve 45, thereby conducting economized circuit; When having only pressure in the delivery outlet 45-3 of combined pressure regulating valve 45 greater than second pressure threshold; The valve that is positioned at delivery outlet 45-3 place could be opened; And make the economized circuit conducting; If the pressure in the delivery outlet 45-3 of combined pressure regulating valve 45 during less than second pressure threshold, is positioned at the valve closing at delivery outlet 45-3 place, and economized circuit is cut off.Pressure charging valve 44, gas valve 46, liquid phase valve 47 and bleed valve 48 are low temperature resistant angle valve.Security component 49 comprises pressure gauge 49-1, safety valve 49-2, rupture disk assembly 49-3 and cross fitting 49-4.
Externally emit the gas in the inner lining 20 when the outside port of bleed valve 48 is to use so that carry out liquid and fill or be convenient to the pressure threshold of combined pressure regulating valve 45 is confirmed, the internal port of bleed valve 48 links to each other with the side port of the inner chamber third channel 36 of distributor 3 through connecting tube.
The second side port 34-2 of the inner chamber first passage 34 of distributor 3 links to each other with the cross fitting 49-4 of security component 49 through connecting tube, and other 3 ports of this cross fitting 49-4 link to each other with pressure gauge 49-1, safety valve 49-2 and rupture disk assembly 49-3 respectively.
See Fig. 1, base 83 is weldingly fixed on the shell lower seal head 13 of housing 10 from the below, and is positioned at the bottom of housing 10.Guard circle pillar 81 has 4, and each guard circle pillar 81 is weldingly fixed on the shell upper cover 13 of housing 10 by lower end separately, and 82 of guard circles are weldingly fixed on from the top on the upper tip of each guard circle pillar 81.
The material of the housing 10 of above-mentioned shell 1, the inner lining 20 of inner bag 2, distributor 3 and neck tube 5 is stainless steel.The material of the main components that vacuumizes each connection pipe fitting and valve in mouthpiece 14 and the pipeline control system 4 of shell 1 also is stainless steel.
The vertical cryogenic insulated cylinder of present embodiment before use; Air in the interlayer between inner bag 2 and the shell 1 is evacuated through the vacuum molecule pump assembly discharges vertical cryogenic insulated cylinder; Reach 0.01Pa until degree of vacuum; First pressure threshold of the combined pressure regulating valve 45 of vertical cryogenic insulated cylinder is arranged on 0.85MPa, and second pressure threshold of combined pressure regulating valve 45 then is 0.95MPa.In use; Open pressure charging valve 44; Liquid air in the inner lining 20 (also can be liquid oxygen, liquid argon gas or liquid nitrogen etc.) gets in the supercharging coil pipe 41 and the vaporization of being heated, and then successively through getting back in the inner lining 20 behind pressure charging valve 44, the combined pressure regulating valve 45, makes pressure increase in the inner lining 20; When reaching the first pressure threshold 0.85MPa, the boost-up circuit of combined pressure regulating valve 45 is closed automatically.When using gas; Pressure charging valve 44 is in the state of opening simultaneously with gas valve 46; When reaching the second pressure threshold 0.95MPa like pressure in the inner lining 20; The economized circuit of combined pressure regulating valve 45 is opened, and preferentially the gas in the inner lining 20 is passed through successively inner chamber first passage 34, the economized circuit of combined pressure regulating valve 45, the outside air feed of vaporization coil pipe 42 and gas valve 46 backs of distributor 3.Normal like pressure in the inner lining 20, then liquid air is from the flow through outside air feed of inner chamber second channel, vaporization coil pipe 42 and gas valve 46 backs of liquid in-out pipe 43-2, distributor 3 of the lower end mouth of liquid in-out pipe 43-2.Liquid air in vaporization coil pipe 42 through with vaporization coil pipe 42 contacted casing cylinders 11 and carry out sufficient heat exchange with external environment, thereby be converted into gas, outside air feed.When the opening degree of gas valve 46 is big, only depend on a vaporization coil pipe 42 that is arranged in the bottle can't the liquid air that flow through wherein be gasified totally.Level meter 72 is in order to observe the amount of the cryogenic liquide in the inner lining 20 intuitively.Liquid phase valve 47 charging and discharging in order to the control cryogenic liquide.Bleed valve 48 reduces the pressure in the inner lining 20 in order to discharge the gas in the inner lining 20.Security component 49 is in order to preventing that gas cylinder from leaking thermal loss normally and causing pressure of the inside of a bottle to rise, or go to pot acceleration under the back and the condition of catching fire of vacuum is leaked the pressure that thermal conductance causes and risen.When surpassing the safety pressure of the 1.12MPa set, opens the gas in inner lining 20 of the safety valve 49-2 in the security component 49; Discharge the gas in the inner lining 20 to the external world; Also rise too fast like pressure; Rupture disk assembly 49-3 in the security component 49 will open pressure release, to guarantee the pressure security of gas cylinder.Pressure gauge 49-1 is used for observing the pressure of understanding inner bag 2 gases.
Obviously, above-mentioned case study on implementation only be for clearly the present invention is described and is done for example, and be not to be qualification to mode of execution of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive (the for example horizontal cryogenic insulated cylinder of corresponding structure) to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (8)
1. a vertical cryogenic insulated cylinder is characterized in that: the interior pipeline of bottle, neck tube (5) and the heat insulation layer (6) that comprise shell (1), inner bag (2), distributor (3), pipeline control system (4);
Shell (1) comprises that housing (10) and airtight is connected and vacuumizes mouthpiece (14) on the housing (10); Housing (10) is provided with center hole in the top; Inner bag (2) comprises inner lining (20) and the airtight coil pipe mouthpiece (24) that is connected on the inner lining (20) and is positioned at inner lining (20) bottom; The top of inner lining (20) has 3 attachment holes; Heat insulation layer (6) is arranged on the outer wall of inner lining (20); Heat insulation layer (6) is by the aluminum foil paper of fire-resistant ultra-fine fibre glass paper and high reflecting rate poststack mutually, and from inside to outside successively wrapped on the outer wall of inner lining (20) and form, the wrapped number of plies is 20 to 40 layers;
Distributor (3) is for being provided with the steel integral piece of inner passage; The inner passage of distributor (3) comprises exocoel first passage (31), exocoel second channel (32), exocoel third channel (33), inner chamber first passage (34), inner chamber second channel (35) and inner chamber third channel (36); Distributor (3) also is provided with ring isolation channel (37); Ring isolation channel (37) is opened on the lower end surface of distributor (3); The inner passage of distributor (3) is equipped with two ports that are called side port and lower end mouth respectively, and the side port of each inner passage derives from the circumferential lateral surface of distributor (3), and the lower end mouth of each inner passage derives from the lower end surface of distributor (3); Exocoel second channel (32) is connected in distributor (3) with inner chamber second channel (35); The lower end mouth of exocoel first passage (31), exocoel second channel (32), exocoel third channel (33) all is positioned at outside the scope that ring isolation channel (37) centered on, and the lower end mouth of inner chamber first passage (34), inner chamber second channel (35) and inner chamber third channel (36) all is positioned at the scope that ring isolation channel (37) is centered on;
Inner bag (2) is arranged in the inner chamber of housing (10); Distributor (3) is arranged on the central hole of housing (10), and distributor (3) is by airtight being fixed on the housing (10) in its week lower end laterally; The upper end of neck tube (5) is stretched in the ring isolation channel (37) of distributor (3), and both are airtight is fixed together; The lower end mouth of neck tube (5) is airtight to be fixed on the inner lining (20), thereby makes inner lining (20) be suspended in the housing (10), and 3 attachment holes at the top of inner lining (20) are surrounded by the lower end mouth of neck tube (5);
The housing (10) of shell (1) comprises casing cylinder (11), shell upper cover (12) and shell lower seal head (13); Casing cylinder (11) is cylinder barrel shaped;
Pipeline comprises supercharging coil pipe (41), vaporization coil pipe (42), inner chamber first pipe (43-1), liquid in-out pipe (43-2) and the exhaust tube (43-3) in the bottle of pipeline control system (4); Inner chamber first pipe (43-1), liquid in-out pipe (43-2) and exhaust tube (43-3) pass respectively separately inner lining (20) top corresponding 1 attachment hole and with airtight fixed connection of inner lining (20); The upper end-hole of inner chamber first pipe (43-1) links to each other with the lower end mouth of the inner chamber first passage (34) of distributor (3); The lower tube section of inner chamber first pipe (43-1) stretches into inner lining (20) downwards, and the lower end mouth of inner chamber first pipe (43-1) is positioned at the top of inner lining (20); The upper end-hole of liquid in-out pipe (43-2) links to each other with the lower end mouth of the inner chamber second channel (35) of distributor (3); The lower tube section of liquid in-out pipe (43-2) stretches into inner lining (20) downwards, and the lower end mouth of liquid in-out pipe (43-2) is positioned at the bottom of inner lining (20); The upper end-hole of exhaust tube (43-3) links to each other with the lower end mouth of the inner chamber third channel (36) of distributor (3), and the lower tube section of exhaust tube (43-3) stretches into inner lining (20) downwards, and the lower end mouth of exhaust tube (43-3) is positioned at the top of inner lining (20); Supercharging coil pipe (41) and vaporization coil pipe (42) are the integral piece that a copper pipe constitutes; Supercharging coil pipe (41) is arranged in the space between housing (10) and the inner lining (20), and is provided with around inner lining (20); The coil pipe mouthpiece (24) of the lower port of supercharging coil pipe (41) and inner bag (2) be positioned at outer airtight fixed connection of connection part of inner lining (20); Thereby be connected with the inner chamber of inner lining (20), the lower end mouth with the exocoel first passage (31) of distributor (3) links to each other the upper port of supercharging coil pipe (41) from the below; Vaporization coil pipe (42) is divided into fluid inlet pipeline section, coil pipe portion and the fluid output pipeline section that links to each other successively; Also promptly the vaporize fluid inlet end of coil pipe (42) of the external port of fluid inlet pipeline section; Also promptly the vaporize fluid outlet of coil pipe (42) of the external port of fluid output pipeline section; The coil pipe portion of vaporization coil pipe (42) is fixed on the inwall of casing cylinder (11), and the setting of rising twist; The fluid inlet end of vaporization coil pipe (42) links to each other with the lower end mouth of the exocoel second channel (32) of distributor (3), and the fluid outlet of vaporization coil pipe (42) links to each other with the lower end mouth of the exocoel third channel (33) of distributor (3).
2. according to the described vertical cryogenic insulated cylinder of claim 1, it is characterized in that: shell upper cover (12) is for Open Side Down and have center hole and the arc-shaped curved surface plate of mounting hole; The center hole of shell upper cover (12) also is the center hole of housing (10); Vacuumize on the position at the airtight mounting hole place that is fixedly connected on this arc-shaped curved surface plate (12) of mouthpiece (14); The diameter at the connecting port place that is positioned at the below of this arc-shaped curved surface plate (12) is identical with the diameter of casing cylinder (11), and this arc-shaped curved surface plate (12) by its connecting port on the airtight upper end-hole that is fixed on casing cylinder (11) in top;
The arc-shaped curved surface plate that shell lower seal head (13) makes progress for opening; The diameter at the connecting port place that is positioned at the top of this arc-shaped curved surface plate (13) is identical with the diameter of casing cylinder (11), and this arc-shaped curved surface plate (13) by its connecting port on the airtight lower end mouth that is fixed on casing cylinder (11) in below.
3. according to the described vertical cryogenic insulated cylinder of claim 2, it is characterized in that: the inner lining (20) of said inner bag (2) comprises inner bag cylindrical shell (21), inner bag upper cover (22) and inner bag lower seal head (23); Inner bag cylindrical shell (21) is cylinder barrel shaped;
Inner bag upper cover (22) is the arc-shaped curved surface plate that Open Side Down; The diameter at the connecting port place that is positioned at the below of this arc-shaped curved surface plate (22) is identical with the diameter of inner bag cylindrical shell (21), and this arc-shaped curved surface plate (22) by its connecting port on the airtight upper end-hole that is fixed on inner bag cylindrical shell (21) in top;
Inner bag lower seal head (23) for opening upwards and have an arc-shaped curved surface plate of mounting hole; Coil pipe mouthpiece (24) is airtight to be fixedly connected on the position at mounting hole place of this arc-shaped curved surface plate (23); The diameter at the connecting port place that is positioned at the top of this arc-shaped curved surface plate (23) is identical with the diameter of inner bag cylindrical shell (21), and this arc-shaped curved surface plate (23) by its connecting port on the airtight lower end mouth that is fixed on inner bag cylindrical shell (21) in below.
4. according to the described vertical cryogenic insulated cylinder of one of claim 1 to 3, it is characterized in that: the outer pipeline of bottle that also comprises pipeline control system (4); The outer pipeline of bottle of pipeline control system (4) comprises pressure charging valve (44), combined pressure regulating valve (45), gas valve (46), liquid phase valve (47) and bleed valve (48); Combined pressure regulating valve (45) is provided with inlet opening (45-1), output inlet opening (45-2), delivery outlet (45-3), boost-up circuit, economized circuit and pressure-regulating device; Boost-up circuit is positioned between inlet opening (45-1) and the output inlet opening (45-2), and economized circuit is positioned between output inlet opening (45-2) and the delivery outlet (45-3); Pressure-regulating device is the pressure threshold of the fluid that is used for from the inlet opening (45-1) flowed into and the parts that the pressure threshold of the fluid that flows out from delivery outlet (45-3) is regulated simultaneously;
The import of pressure charging valve (44) links to each other with the side port of the exocoel first passage (31) of distributor (3) through connecting tube; The outlet of pressure charging valve (44) links to each other with the inlet opening (45-1) of combined pressure regulating valve (45) through connecting tube; The output inlet opening (45-2) of combined pressure regulating valve (45) links to each other with the side port (34-1) of the inner chamber first passage (34) of distributor (3) through connecting tube; The delivery outlet (45-3) of combined pressure regulating valve (45) links to each other with the side port of the exocoel second channel (32) of distributor (3) through connecting tube; Externally export the port of gas when the outside port of gas valve (46) is to use, the internal port of gas valve (46) links to each other with the side port of the exocoel third channel (33) of distributor (3) through connecting tube; The outside port of liquid phase valve (47) inputs or outputs the port of cryogenic liquid gas when being to use, the internal port of liquid phase valve (47) links to each other with inner chamber second channel (35) side port of distributor (3) through connecting tube; Externally emit the gas in the inner lining (20) when the outside port of bleed valve (48) is to use so that carry out liquid and fill or be convenient to the pressure threshold of combined pressure regulating valve (45) is confirmed, the internal port of bleed valve (48) links to each other with the side port of the inner chamber third channel (36) of distributor (3) through connecting tube.
5. according to the described vertical cryogenic insulated cylinder of claim 4, it is characterized in that: the outer pipeline of bottle of said pipeline control system (4) also comprises security component (49); Security component (49) comprises pressure gauge (49-1), safety valve (49-2), rupture disk assembly (49-3) and cross fitting (49-4); The inner chamber first passage (34) of distributor (3) also is provided with another side port (34-2) that is called second side port; Second side port (34-2) of the inner chamber first passage (34) of distributor (3) links to each other with cross fitting (49-4) through connecting tube, and other 3 ports of this cross fitting (49-4) link to each other with pressure gauge (49-1), safety valve (49-2) and rupture disk assembly (49-3) respectively.
6. according to the described vertical cryogenic insulated cylinder of claim 4, it is characterized in that: pressure charging valve (44), gas valve (46), liquid phase valve (47) and the bleed valve (48) of the outer pipeline of bottle of said pipeline control system (4) are low temperature resistant angle valve.
7. according to the described vertical cryogenic insulated cylinder of one of claim 1 to 3, it is characterized in that: also comprise liquid level assembly (7), liquid level assembly (7) comprises protective cover (71) and level meter (72); Said distributor (3) is cylindrical, also is provided with the center hole that is positioned at central position (38) of up/down perforation, and the center hole of distributor (38) is provided with internal thread; The center hole (38) of ring isolation channel (37) and distributor is coaxially set with distributor (3); The top of said inner lining (20) also has the 4th attachment hole, and is positioned within the lower end mouth of neck tube (5);
Protective cover (71) is airtight being fixed on the distributor (3) from the top, and the center hole (38) that is positioned at distributor (3) is located; The upper end look-out station of level meter (72) is in the transparent position of protective cover (71); Level meter (72) pass successively from the top down by its connecting rod distributor (3) center hole (38) and inner lining (20) top the 4th attachment hole and make the middle and lower part of level meter (72) be arranged in inner lining (20); The flange part that is positioned at the look-out station below of level meter (72) screws on the internal thread of the center hole (38) of distributor (3); Connecting rod is airtight to be fixed on the inner lining (20), and the lower end of level meter (72) is positioned at the bottom of inner lining (20).
8. according to the described vertical cryogenic insulated cylinder of one of claim 1 to 3, it is characterized in that: also comprise guard circle pillar (81), guard circle (82) and base (83); Base (83) is fixed on the housing (10) from the below, and is positioned at the bottom of housing (10); Guard circle pillar (81) has 3 to 5, and each guard circle pillar (81) is weldingly fixed on the housing (10) from the top by lower end separately, and is positioned at the top of housing; Guard circle (82) is weldingly fixed on the upper tip of each guard circle pillar (81) from the top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110009453A CN102174983B (en) | 2011-01-17 | 2011-01-17 | Vertical-type low-temperature heat-insulation gas cylinder |
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| CN201110009453A CN102174983B (en) | 2011-01-17 | 2011-01-17 | Vertical-type low-temperature heat-insulation gas cylinder |
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| CN102174983B true CN102174983B (en) | 2012-10-17 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102691881A (en) * | 2012-05-23 | 2012-09-26 | 张家港市科华化工装备制造有限公司 | Welded adiabatic gas cylinder |
| CN102705694A (en) * | 2012-05-29 | 2012-10-03 | 张家港市科华化工装备制造有限公司 | Refillable vertical movable gas cylinder |
| CN102691882A (en) * | 2012-05-29 | 2012-09-26 | 张家港市科华化工装备制造有限公司 | Welded heat-insulating gas bottle |
| CN104235600A (en) * | 2014-09-26 | 2014-12-24 | 江苏深绿新能源科技有限公司 | Low-temperature thermal-isolation gas cylinder |
| CN105715941A (en) * | 2014-12-05 | 2016-06-29 | 南通赛孚机械设备有限公司 | Small liquefied gas pipeline system |
| CN109630866B (en) * | 2018-12-27 | 2020-07-31 | 重庆市潼南区金盛气体有限公司 | Liquid nitrogen storage jar with vapour-pressure type safety protection function |
| CN110285316B (en) * | 2019-06-10 | 2022-12-16 | 上海齐耀动力技术有限公司 | High vacuum multi-layer heat insulation container with inner container having convex object on outer surface |
| CN110805827B (en) * | 2019-11-27 | 2022-03-08 | 王栋 | Liquid gas storage tank with low-temperature coil protective layer and liquid storage method thereof |
| CN113464836B (en) * | 2021-07-07 | 2022-09-06 | 广州市粤佳气体有限公司 | Full-automatic supply process for low-temperature liquid gas dewar tank |
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| CA2506606C (en) * | 2005-06-03 | 2006-09-12 | Westport Research Inc. | Storage tank for a cryogenic liquid and method of re-filling same |
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| US5136852A (en) * | 1991-04-10 | 1992-08-11 | Minnesota Valley Engineering, Inc. | Control regulator and delivery system for a cryogenic vessel |
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