CN109296929A - Low-temperature storage tank - Google Patents

Low-temperature storage tank Download PDF

Info

Publication number
CN109296929A
CN109296929A CN201710608164.6A CN201710608164A CN109296929A CN 109296929 A CN109296929 A CN 109296929A CN 201710608164 A CN201710608164 A CN 201710608164A CN 109296929 A CN109296929 A CN 109296929A
Authority
CN
China
Prior art keywords
pump sump
interior
shell ring
outer barrel
storage tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710608164.6A
Other languages
Chinese (zh)
Inventor
陆江峰
李伟鹏
刘海兵
杨阳
封晓华
金晓飞
赵春云
仇宏伟
邱国洪
徐小艳
吴志燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China International Marine Containers Group Co Ltd
Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd
CIMC Enric Investment Holdings Shenzhen Co Ltd
Original Assignee
China International Marine Containers Group Co Ltd
Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd
CIMC Enric Investment Holdings Shenzhen Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China International Marine Containers Group Co Ltd, Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd, CIMC Enric Investment Holdings Shenzhen Co Ltd filed Critical China International Marine Containers Group Co Ltd
Priority to CN201710608164.6A priority Critical patent/CN109296929A/en
Publication of CN109296929A publication Critical patent/CN109296929A/en
Withdrawn legal-status Critical Current

Links

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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • 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
    • 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
    • F17C13/06—Closures, e.g. cap, breakable member
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • 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
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F17C2227/0142—Pumps with specified pump type, e.g. piston or impulsive type
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/063—Fluid distribution for supply of refueling stations

Abstract

The present invention provides a kind of low-temperature storage tanks, including tank body, tank body includes outer barrel and the inner cylinder that outer inner barrel is arranged in, interlayer is equipped between inner cylinder and outer barrel, low-temperature storage tank further include: pump sump, the inside of tank body is set, and the bottom end of pump sump extends to the bottom of tank body, and the top of pump sump is extended upwardly to without departing from outer barrel；Shrinkage compensating unit, can dilatation, be connected in the recessed outer barrel of shrinkage compensating unit and with inner cylinder and outer barrel respectively, and make interlayer closed sandwich；Shrinkage compensating unit is connected to pump sump top and/or the top end close to pump sump, and shrinkage compensating unit has the cavity of connection pump sump inner cavity.The inside of the recessed outer barrel of shrinkage compensating unit in the present invention, it avoids evagination and the problem for keeping storage tank outer dimension excessive is set, convenient for the subsequent transport of storage tank and installation wiring, the setting of shrinkage compensating unit recess can effectively shorten the length of pump sump simultaneously, in immersed pump maintenance, suspending pump stroke is shorter, more efficient.

Description

Low-temperature storage tank
Technical field
The present invention relates to Cryo Equipment field, in particular to a kind of low-temperature storage tank.
Background technique
LNG has the unrivaled advantage of conventional fuel as motor vehicle fuel, and efficient, cleaning allows it to obtain rapid hair LNG gas station is all being built in exhibition, many places in the whole nation, and the LNG low-temperature storage tank demand as its capital equipment is also in that explosion type increases It is long, it is contemplated that build a station safe spacing requirement and overall cost problem, built-in immersed pump is also by one as low-temperature storage tank industry Develop new direction.
The immersed pump as built in storage tank need to consider pump sump pyrocondensation stress, and shrinkage collocation structure can generally be arranged to meet stress It is required that.Shrinkage collocation structure in the prior art is generally arranged at the outside of storage tank or because adding expansion joint far beyond storage tank Outer surface, it is excessive so as to cause storage tank outer dimension, it is not easy to subsequent transport, installation wiring, maintenance etc..
Summary of the invention
It is excessive it is an object of the invention to solve the storage tank outer dimension with built-in immersed pump in the prior art, it is not easy to The problem of subsequent transportation, installation wiring and Measuring error.
In order to solve the above technical problems, the present invention provides a kind of low-temperature storage tank, including tank body, the tank body includes outer barrel With the inner cylinder being arranged in inside the outer barrel, interlayer, the low temperature storage are equipped between the inner cylinder and the outer barrel Tank further include: the inside of the tank body is arranged in pump sump, and the bottom end of the pump sump extends to the bottom of the tank body, the pump The top of well is extended upwardly to without departing from the outer barrel；Shrinkage compensating unit, can dilatation, the shrinkage compensating unit It is connected in the recessed outer barrel and with the inner cylinder and the outer barrel respectively, and makes the interlayer closed sandwich；Institute It states shrinkage compensating unit and is connected to the pump sump top and/or the top end close to the pump sump, the shrinkage compensating unit tool There is the cavity for being connected to the pump sump inner cavity.
Preferably, the inner cylinder offers the first aperture, the outer barrel face close to the position on the pump sump top First tapping offers the second aperture；The shrinkage compensating unit includes interior compensating part and external compensation part, the interior benefit The top and bottom end for repaying part and the external compensation part are open, and the interior compensating part all has with the external compensation part and is connected to two The inner cavity of end opening；The interior compensating part is socketed on the outer wall of pump sump by the opening of its bottom end, the top of the interior compensating part The periphery of end opening connects the periphery of first aperture, and the inner cavity of the interior compensating part is connected to the interlayer；It is described outer Compensating part is socketed in the periphery on the pump sump top, the top end opening periphery connection of the external compensation part by the opening of its bottom end The inner cavity of the periphery of second aperture, the external compensation part is connected to the pump sump inner cavity and exterior space simultaneously；The interior benefit The top end opening for repaying part is greater than its bottom end opening, and the top end opening of the external compensation part is greater than its bottom end opening.
Preferably, the apical position of the pump sump is located in the inner cavity of the interior compensating part.
Preferably, the interior compensating part includes interior shell ring and the interior end socket for being connected to the interior shell ring bottom end, the inner cylinder Section is isometrical shell ring, and top is connected to the first aperture periphery, and being provided centrally with for the interior end socket is worn for the pump sump The first through hole crossed, the internal diameter of the interior shell ring are greater than the diameter of the first through hole；The external compensation part include outer shell ring and It is connected to the outside head of the outer shell ring bottom end, the outer shell ring is isometrical shell ring, and top is connected to second aperture Periphery, the center of the outside head are equipped with the second through-hole for connecting the pump sump top, and the internal diameter of the outer shell ring is greater than described The diameter of second through-hole.
Preferably, the interior shell ring and the interior end socket are integrally formed, and the outer shell ring and the outside head are integrally formed.
Preferably, the outer rim on the interior shell ring top is equipped with the first stiffening plate, and the first stiffening plate fitting is fixed on institute It states on inner cylinder；The outer rim on the outer shell ring top is equipped with the second stiffening plate, and the second stiffening plate fitting is fixed on described outer On cylinder.
Preferably, the interior end socket is in spherical crown shape, bowl-shape, plate-like, disk like or flat cover shape；The outside head in spherical crown shape, Bowl-shape, plate-like, disk like or flat cover shape.
Preferably, the pump sump includes pump sump main body and the flange for being connected to pump sump main body top, and the flange connects It connects in the second through hole of the outside head.
Preferably, the pump sump main body includes the adapter tube for being connected to the flange bottom end, is connected to the adapter tube bottom end Dual-sided splice, the pump sump shell ring for being connected to the dual-sided splice bottom end and the pump sump for being connected to pump sump shell ring bottom end envelope Head, the dual-sided splice are connected with the first through hole periphery of the interior end socket.
Preferably, the bottom of the inner cylinder and the outer barrel opens up opposite embedding hole, the embedding hole of inside and outside cylinder respectively Place is embedded with the extension shell ring that section is in U-shape, the inner cavity for extending shell ring lower than the inner cylinder intracoelomic cavity and with the inner cylinder Inner cavity connection, the pump sump end socket are contained in the inner cavity for extending shell ring.
Preferably, the extension shell ring exceeds the outer barrel, the outer barrel outward from the embedding hole of the outer barrel It is downwardly projected and is equipped with pressure-bearing insulation portion, the pressure-bearing insulation portion has accommodating chamber, and the shell ring that extends is beyond the outer barrel It is partially received in the accommodating chamber.
As shown from the above technical solution, the invention has the benefit that
The inside of the recessed outer barrel of shrinkage compensating unit in low-temperature storage tank of the invention, avoiding evagination setting makes storage tank shape ruler Very little excessive problem is convenient for the subsequent transport of storage tank and installation wiring, while the recess setting of shrinkage compensating unit can be effectively The length for shortening pump sump, in immersed pump maintenance, suspending pump stroke is shorter, more efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of low-temperature storage tank embodiment of the present invention.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
The reference numerals are as follows: 1, low-temperature storage tank；11, outer barrel；111, the second aperture；12, inner cylinder；121, second Aperture；13, interlayer；14, pump sump；141, pump sump main body；1411, it takes over；1412, dual-sided splice；1413, pump sump shell ring；1414, Pump sump end socket；142, flange；15, shrinkage compensating unit；151, interior compensating part；1511, interior shell ring；1512, interior end socket；152, outer Compensating part；1521, outer shell ring；1522, outside head；16, the first stiffening plate；17, the second stiffening plate；18, extend shell ring；181, interior Stiffening plate；19, pressure-bearing insulation portion；191, external reinforcing plate for car.
Specific embodiment
The exemplary embodiment for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that The present invention can have various variations in different embodiments, neither depart from the scope of the present invention, and theory therein Bright and diagram inherently is illustrated as being used, rather than to limit the present invention.
Principle and structure in order to further illustrate the present invention carry out the preferred embodiment of the present invention now in conjunction with attached drawing detailed It describes in detail bright.
Refering to fig. 1, the present embodiment provides a kind of low-temperature storage tanks 1 comprising tank body.The tank body includes outer barrel 11 and setting Inner cylinder 12 inside outer barrel 11 is equipped with interlayer 13 between inner cylinder 12 and outer barrel 11, the inside of inner cylinder 12 is used for Accommodate the medium of low temperature.
Further, low-temperature storage tank 1 further includes pump sump 14 and shrinkage compensating unit 15.Wherein, pump sump 14 is arranged in tank body Inside, the bottom end of pump sump 14 extends to the bottom of tank body, and the top of pump sump 14 is extended upwardly to without departing from outer barrel 11.It is cold It is connected in the recessed outer barrel 11 of contracting compensating unit 15 and with inner cylinder 12 and outer barrel 11 respectively, and makes the closing folder of interlayer 13 Layer.Shrinkage compensating unit 15 is connected to 14 top of pump sump and/or the top end close to pump sump 14, and has connection 14 inner cavity of pump sump Cavity.
The inner cavity of the pump sump 14 of the present embodiment is connected to the inner cavity of inner cylinder 12, so that the medium in inner cylinder 12 can flow Enter in pump sump 14.Immersed pump is also equipped in the inner cavity of pump sump 14, the medium inside pump sump 14 can be pumped out tank body by immersed pump Outside.The immersed pump of the present embodiment is immersed pump in the prior art, and installation form is also same as the prior art, herein not It repeats again.
When pump sump 14 pumps out the medium in inner cylinder 12 outside tank body, 14 top of pump sump can nearby generate biggish temperature Difference.The variation of temperature can make pump sump 14 that shrinkage occur and cause the variation of 14 size of pump sump, to generate on pump sump 14 higher Stress.The shrinkage compensating unit 15 of the present embodiment can effective dilatation, to absorb inner cylinder 12, outer barrel 11 and pump sump 14 shrinkages and the change in size generated, compensation inner cylinder 12, outer barrel 11 and the axial of pump sump 14, transverse direction and angular displacement, from And reduce the shrinkage stress of the receiving of pump sump 14, avoid the fracture damage of pump sump 14；The recessed outer cylinder of shrinkage compensating unit 15 simultaneously The inside of body 11 avoids the excessive problem of storage tank outer dimension, and is also effectively shortened the length of pump sump 14, in latent liquid When pump maintenance, suspending pump stroke is shorter, more efficient.
As depicted in figs. 1 and 2, the shrinkage compensating unit 15 of the present embodiment includes interior compensating part 151 and external compensation part 152, Interior compensating part 151 is connected on pump sump 14 and inner cylinder 12, and external compensation part 152 is connected on pump sump 14 and outer barrel 11.Pass through It is acted on while interior compensating part 151 and external compensation part 152, the effect compensated 14 shrinkage of pump sump can be reinforced, further ensure that pump The integrality of structure when well 14 works.
Specifically, inner cylinder 12 close to the position on 14 top of pump sump offers the first aperture 121, outer barrel in the present embodiment The second aperture 111 is offered at 11 the first apertures of face 121.
The top and bottom end of interior compensating part 151 and external compensation part 152 are open, and interior compensating part 151 and external compensation part 152 All have the inner cavity of connection both ends open.In the present embodiment, the top end opening of interior compensating part 151 is greater than its bottom end opening, outside The top end opening of compensating part 152 is greater than its bottom end opening, so that interior compensating part 151 and external compensation part 152 all have and extend out bore, Further ensure that the ability that interior compensating part 151 and external compensation part 152 have shrinkage compensation.
Further, interior compensating part 151 is socketed on the outer wall of pump sump 14 by the opening of its bottom end, and interior compensating part The periphery of 151 top end openings connects the periphery of the first aperture 121.The inner cavity of interior compensating part 151 is connected to interlayer 13, in guaranteeing Interlayer 13 between cylinder 12 and outer barrel 11 seals.
External compensation part 152 is socketed in the periphery on 14 top of pump sump by the opening of its bottom end, and 152 top of external compensation part is opened The periphery of mouth connects the periphery of the second aperture 111.The inner cavity of external compensation part 152 is connected to 14 inner cavity of pump sump and exterior space simultaneously, So that medium pump inside pump sump 14 is to the outside of tank body.
Preferably, the apical position of pump sump 14 is located in the inner cavity of interior compensating part 151 in the present embodiment, such setting is being contracted While short 14 length of pump sump, it is possible to reduce pump sump 14 is exchanged with the heat outside tank body, reduces tank interior medium cooling capacity Consume.
In the present embodiment, it is formed between interior compensating part 151, external compensation part 152 and inside and outside cylinder 12,11 closed Space can effectively obstruct leaking for tank interior cryogenic media.By filling thermal insulation material in the enclosure space and taking out It is vacuum-treated, the leakage heat of pump sump 14 can be substantially reduced.
Referring to Fig.2, the interior compensating part 151 of the present embodiment includes interior shell ring 1511 and is connected to the interior of interior 1511 bottom end of shell ring End socket 1512.Interior shell ring 1511 is isometrical shell ring, and top is connected to the periphery of the first aperture 121 of inner cylinder 12.Interior end socket 1512 are provided centrally with the first through hole passed through for pump sump 14, and the internal diameter of interior shell ring 1511 is greater than the diameter of first through hole.
External compensation part 152 includes outer shell ring 1521 and the outside head 1522 for being connected to outer 1521 bottom end of shell ring.Outer shell ring 1521 be isometrical shell ring, and top is connected to the periphery of the second aperture 111 of outer barrel 11.The center of outside head 1522, which is equipped with, to be connected Second through-hole on 14 top of pump sump is connect, the internal diameter of outer shell ring 1521 is greater than the diameter of the second through-hole.
In the present embodiment, interior shell ring 1511 and interior end socket 1512 are integrally formed, outer shell ring 1521 and outside head 1,522 1 It is body formed.In some other preferably embodiment, interior shell ring 1511 and interior end socket 1512, and outer shell ring 1521 and outside head 1522 modes that butt welding can also be used are formed by connecting.
As depicted in figs. 1 and 2, the outer rim on interior 1511 top of shell ring is equipped with the first stiffening plate 16, the fitting of the first stiffening plate 16 It is fixed on inner cylinder 12.The outer rim on outer 1521 top of shell ring is equipped with the second stiffening plate 17, and the fitting of the second stiffening plate 17 is fixed on On outer barrel 11.In the present embodiment, the fitting of the first stiffening plate 16 is fixed on the outer surface of inner cylinder 12, can be used for reinforcing inner cylinder The structural strength of 12 first opening of body.Second stiffening plate 17 is bonded the outer surface for being fixed on outer barrel 11, can be used for reinforcing outer Structural strength at 11 second aperture 111 of cylinder.
Further, interior end socket 1512 can be in spherical crown shape, bowl-shape, plate-like, disk like or flat cover shape, and outside head 1522 is in ball Coronal, bowl-shape, plate-like, disk like or flat cover shape.The interior end socket 1512 and outside head 1522 of the present embodiment are in bowl-shape.
Refering to fig. 1, the pump sump 14 of the present embodiment includes pump sump main body 141 and the flange for connecting 141 top of pump sump main body 142, flange 142 is connected to the second through hole of outside head 1522.It, can be first by flange 142 and covering in assembling installation process First 1522 welding, then processing is sealed to flange 142, to guarantee the sealing effect of 142 joint face of flange.
Further, pump sump main body 141 include by top to the sequentially connected adapter tube 1411 in bottom end, dual-sided splice 1412, Pump sump shell ring 1413 and pump sump end socket 1414, adapter tube 1411 are connected to the bottom end of flange 142.In pump sump main body 141 is accommodated in In cylinder 12, to form built-in pump pond in tank body.When pumping pond normal use under 12 cryogenic media environment of inner cylinder, nothing Individually heat preservation again is needed, efficiency can be made to obtain maximum control and utilization.
In the present embodiment, dual-sided splice 1412 is connected with the first through hole periphery of interior end socket 1512.Dual-sided splice 1412 Wall thickness it is thicker, interior end socket 1512 is connected on dual-sided splice 1412, it is ensured that is connected between interior compensating part 151 and pump sump 14 strong Degree.
Referring still to Fig. 1, the bottom of inner cylinder 12 and outer barrel 11 opens up opposite embedding hole respectively, inside and outside cylinder it is embedding The extension shell ring 18 that section is in U-shape is embedded at hole.Extend shell ring 18 inner cavity lower than 12 inner cavity of inner cylinder and with the inner cylinder The connection of 12 inner cavities.
The pump sump end socket 1414 of the present embodiment is contained in the inner cavity for extending shell ring 18, so that the bottom end of pump sump 14 is lower than interior The bottom of cylinder 12 so that the medium in inner cylinder 12 be enable to fully enter in pump sump 14, thus is largely reduced The waste of tank interior medium.In the present embodiment, extend shell ring 18 and exceed outer barrel outward from the embedding hole of outer barrel 11 11, to increase the difference in height between 12 bottom of 14 bottom of pump sump and inner cylinder.
In addition, the outer barrel 11 of the present embodiment is downwardly projecting to be equipped with pressure-bearing insulation portion 19, the section of the pressure-bearing insulation portion 19 It is in U-shape.Pressure-bearing insulation portion 19 has accommodating chamber, extends being partially received in the accommodating chamber beyond outer barrel 11 of shell ring 18.It holds Pressure insulation portion 19 is while assisting outer barrel 11 to bear certain external pressure, additionally it is possible to reduce the cold of pump sump 14 and tank body exterior space Amount transmitting.
Further, the outer rim for extending 18 top of shell ring is equipped with interior stiffening plate 181, and the interior fitting of stiffening plate 181 is fixed on interior On the outer surface of cylinder 12, to reinforce extending the structural strength of shell ring 18 and 12 junction of inner cylinder.19 top of pressure-bearing insulation portion Outer rim be equipped with external reinforcing plate for car 191, external reinforcing plate for car 191 fitting be fixed on the outside of outer barrel 11, to reinforce pressure-bearing insulation portion 19 with the structural strength of 11 junction of outer barrel.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with Attached claim is covered.

Claims (11)

1. a kind of low-temperature storage tank, including tank body, the tank body includes outer barrel and the inner cylinder that is arranged in inside the outer barrel, Interlayer is equipped between the inner cylinder and the outer barrel, which is characterized in that the low-temperature storage tank further include:
Pump sump, is arranged in the inside of the tank body, and the bottom end of the pump sump extends to the bottom of the tank body, the top of the pump sump End is extended upwardly to without departing from the outer barrel；
Shrinkage compensating unit, can dilatation, in the recessed outer barrel of shrinkage compensating unit and respectively with it is described interior Cylinder is connected with the outer barrel, and makes the interlayer closed sandwich；The shrinkage compensating unit is connected to the pump sump top The top end of end and/or the close pump sump, the shrinkage compensating unit have the cavity for being connected to the pump sump inner cavity.
2. low-temperature storage tank according to claim 1, which is characterized in that position of the inner cylinder close to the pump sump top The first aperture is offered, the first tapping described in the outer barrel face offers the second aperture；The shrinkage compensating unit packet Interior compensating part and external compensation part are included, the top and bottom end of the interior compensating part and the external compensation part are open, and the interior benefit It repays part and all has the inner cavity for being connected to both ends open with the external compensation part；
The interior compensating part is socketed on the outer wall of pump sump by the opening of its bottom end, the week of the top end opening of the interior compensating part Edge connects the periphery of first aperture, and the inner cavity of the interior compensating part is connected to the interlayer；The external compensation part passes through The opening of its bottom end is socketed in the periphery on the pump sump top, and the top end opening periphery connection described second of the external compensation part is opened The inner cavity of the periphery in hole, the external compensation part is connected to the pump sump inner cavity and exterior space simultaneously；
The top end opening of the interior compensating part is greater than its bottom end opening, and the top end opening of the external compensation part is greater than its bottom end and opens Mouthful.
3. low-temperature storage tank according to claim 2, which is characterized in that the apical position of the pump sump is located at the interior compensation In the inner cavity of part.
4. low-temperature storage tank according to claim 2, which is characterized in that the interior compensating part includes interior shell ring and is connected to institute The interior end socket of interior shell ring bottom end is stated, the interior shell ring is isometrical shell ring, and top is connected to the first aperture periphery, described interior End socket is provided centrally with the first through hole passed through for the pump sump, and the internal diameter of the interior shell ring is greater than the straight of the first through hole Diameter；
The external compensation part includes outer shell ring and the outside head for being connected to the outer shell ring bottom end, and the outer shell ring is isometrical cylinder Section, top are connected to the periphery of second aperture, and the center of the outside head, which is equipped with, connects the second of the pump sump top Through-hole, the internal diameter of the outer shell ring are greater than the diameter of second through-hole.
5. low-temperature storage tank according to claim 4, which is characterized in that the interior shell ring and the interior end socket are integrally formed, The outer shell ring and the outside head are integrally formed.
6. low-temperature storage tank according to claim 4, which is characterized in that the outer rim on the interior shell ring top is equipped with first and reinforces Plate, the first stiffening plate fitting are fixed on the inner cylinder；The outer rim on the outer shell ring top is equipped with the second stiffening plate, institute The fitting of the second stiffening plate is stated to be fixed on the outer barrel.
7. low-temperature storage tank according to claim 4, which is characterized in that the interior end socket is in spherical crown shape, bowl-shape, plate-like, dish Shape or flat cover shape；The outside head is in spherical crown shape, bowl-shape, plate-like, disk like or flat cover shape.
8. low-temperature storage tank according to claim 4, which is characterized in that the pump sump includes pump sump main body and is connected to described The flange on pump sump main body top, the flanged joint is in the second through hole of the outside head.
9. low-temperature storage tank according to claim 8, which is characterized in that the pump sump main body includes being connected to the flange bottom The adapter tube at end, the dual-sided splice for being connected to the adapter tube bottom end, pump sump shell ring, the Yi Jilian for being connected to the dual-sided splice bottom end The pump sump end socket in pump sump shell ring bottom end is connect, the dual-sided splice is connected with the first through hole periphery of the interior end socket.
10. low-temperature storage tank according to claim 9, which is characterized in that the bottom of the inner cylinder and the outer barrel point Opposite embedding hole is not opened up, and the extension shell ring that section is in U-shape is embedded at the embedding hole of inside and outside cylinder, it is described to extend the interior of shell ring Chamber is connected to lower than the inner cylinder intracoelomic cavity and with the inner cylinder intracoelomic cavity, and the pump sump end socket is contained in the inner cavity for extending shell ring In.
11. low-temperature storage tank according to claim 9, which is characterized in that the extension embedding hole of the shell ring from the outer barrel Place exceeds the outer barrel outward, and the outer barrel is downwardly projected equipped with pressure-bearing insulation portion, and the pressure-bearing insulation portion, which has, to be accommodated Chamber, it is described to extend shell ring being partially received in the accommodating chamber beyond the outer barrel.
CN201710608164.6A 2017-07-24 2017-07-24 Low-temperature storage tank Withdrawn CN109296929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710608164.6A CN109296929A (en) 2017-07-24 2017-07-24 Low-temperature storage tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710608164.6A CN109296929A (en) 2017-07-24 2017-07-24 Low-temperature storage tank

Publications (1)

Publication Number Publication Date
CN109296929A true CN109296929A (en) 2019-02-01

Family

ID=65167087

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710608164.6A Withdrawn CN109296929A (en) 2017-07-24 2017-07-24 Low-temperature storage tank

Country Status (1)

Country Link
CN (1) CN109296929A (en)

Similar Documents

Publication Publication Date Title
US8235240B2 (en) Inner container surrounded by an outer container, used for receiving a cryogenic liquid
JP4599380B2 (en) Seal structure of high pressure vessel
CN102997034B (en) A kind of low-temperature storage-transport container
CN207848956U (en) A kind of double-layer vacuum insulated storage tank peculiar to vessel with air chamber structure
US9863582B2 (en) Gas tank container
US20120273076A1 (en) Compact hydraulic accumulator
JP2008256241A (en) Heat storage tank
CN206988806U (en) low-temperature storage tank
CN109296929A (en) Low-temperature storage tank
CN106802045B (en) Ultra-low temperature refrigerator box and ultra-low temperature refrigerator
CN103046994B (en) For internal-combustion engine cooling medium loop and there is the vehicle in this loop
CN105545518B (en) Engine cylinder body component
CN208107632U (en) Vertical low temperature liquid storage tank
JP5168590B2 (en) Water jacket structure
CN210567488U (en) Large volume liquefied natural gas cylinder for vehicle
CN217030795U (en) Heat-insulating bottle inner container, heat-insulating bottle and vehicle
CN104329823B (en) A kind of cold-producing medium savings device and the refrigeration system with cold-producing medium savings device
CN109210004B (en) Pump pool of immersed pump
CN218913878U (en) Rotatable urea box breather valve
CN114560164B (en) Safety phase change unit, safety phase change device and preparation method
US20160223140A1 (en) A Tank-Pump Integrated Structure for LNG Filling Station
CN217422915U (en) High-pressure gas storage cylinder
CN217300847U (en) Multipurpose vacuum structure
CN205971870U (en) Unmanned aerial vehicle organism oil tank
CN215112002U (en) Liquid oxygen storage container convenient to fill dress and liquid oxygen apparatus of oxygen supply

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20190201