CN103470950A - Manhole device of low temperature liquid storing and transporting container - Google Patents
Manhole device of low temperature liquid storing and transporting container Download PDFInfo
- Publication number
- CN103470950A CN103470950A CN 201310403889 CN201310403889A CN103470950A CN 103470950 A CN103470950 A CN 103470950A CN 201310403889 CN201310403889 CN 201310403889 CN 201310403889 A CN201310403889 A CN 201310403889A CN 103470950 A CN103470950 A CN 103470950A
- Authority
- CN
- China
- Prior art keywords
- manhole
- flange
- vessel
- low temperature
- end socket
- 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.)
- Pending
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a manhole device of a low temperature liquid storing and transporting container, comprising a manhole flange, a DN400 end socket and an expansion joint, wherein a long welding neck flange is adopted, one end of the flange is welded with the outer layer shell of the lower temperature container, the other end of the flange is covered by a manhole cover for sealing the manhole device, and a tongue and groove face is adopted as the sealing surface for sealing; the DN400 end socket is used for being welded with the inner layer shell of the low temperature container, so that the inner layer shell is in a heat insulation closed environment; the expansion joint is connected between the short joint of the manhole and a barrel joint connected with the end socket, so as to solve the problem of deformation caused by chilling shrink of the low temperature container. The invention provides the manhole device which is convenient to overhaul, obvious in sealing effect and convenient to install.
Description
Technical field
The present invention relates to the adiabatic low-temperature (low temperature) vessel manhole device of a kind of double-layer vacuum, relate in particular to a kind of cryogenic liquid vessel manhole device for cryogenic liquides such as accumulating LNG Liquefied natural gas, belong to cryogenic liquide warehousing and transportation facilities technical field.
Background technique
The adiabatic low-temperature (low temperature) vessel of double-layer vacuum comprises internal layer shell and outer casing, and the insulating sandwich space is set between internal layer shell and outer casing, and in order to overhaul conveniently, pressurized container all arranges the manhole device, but the setting of manhole must guarantee the seal of container.The adiabatic low-temperature (low temperature) vessel of current double-layer vacuum generally all only arranges the technique manhole, and while facilitating internal layer shell to make, whole seam welding and non-destructive inspection, can not open manhole and do not establish.Some manufactories do not arrange manhole on outer casing, because the setting of manhole may cause internal gas to leak, also may make layer vacuum not guarantee, manhole is not set and makes maintenance inconvenience very, the cost of overhaul strengthens, and even also can make the housing life-span reduce.
The present invention is exactly the deficiency that will overcome existing cryogenic liquide storage-transport vessel manhole device, a kind of seal and adiabaticity that can guarantee whole inner casing is provided, make again manhole open convenient, the manhole device that the cost of overhaul reduces, be arranged on position, horizontal low temperature vessel head middle and upper part.
Summary of the invention
The technical problem to be solved in the present invention is: the invention provides a kind of cryogenic liquide storage-transport vessel manhole device, this invention manhole flange adopts the long-neck welding neckflange, sealing surface adopts tongue and groove, guaranteed absolute seal, the end socket welding of inner casing and DN400, inner container is in adiabatic space, greatly reduces the cost of overhaul, can not reduce service life of equipment.
In order to address the above problem, the present invention is achieved through technology:
A kind of cryogenic liquide storage-transport vessel manhole device, comprise nut, double-screw bolt, manhole flange lid, pad, manhole flange, manhole pipe nipple, expansion joint, shell ring, end socket, end socket handle.Double-screw bolt, nut are for being fixedly connected with manhole flange and manhole cover; The long-neck welding neckflange that manhole flange is DN400, an end is connected with the manhole pipe nipple, and an end is coated with for sealing manhole device's manhole cover; Pad is spiral wound gasket; The shell welding of manhole pipe nipple and low-temperature (low temperature) vessel, adopt complete penetraction and fusion in welding; Used for expansion joint is in connecting manhole pipe nipple and shell ring, and model is ZXW(B) 400, length and wave number are determined according to the spacing of inside and outside shell; The ellipsoidal head that end socket is DN400, be welded on inner casing with shell ring; The end socket handle is fixedly connected on the ellipsoidal head of DN400.
Manhole flange is coated with for sealing manhole device's manhole cover.
Manhole flange is arranged on the outer tank external body, for being fixedly connected with the outer casing of low-temperature (low temperature) vessel.
The expansion joint pattern is the high expansion joint of global formation small echo, and nominal diameter is DN400.
Used for expansion joint, in connecting manhole pipe nipple and shell ring, is arranged between the internal layer shell and outer casing of low-temperature (low temperature) vessel.
The DN400 ellipsoidal head is welded on inner barrel inside, has effectively guaranteed the airtight performance of inner casing.
Various adapters and other container attachment can be installed on manhole cover, will take over to concentrate and draw, can reduce and leak heat.
Adopted technique scheme, the invention has the beneficial effects as follows:
Weld the ellipse head of DN400 on inner casing, guarantee seal and the adiabaticity of whole inner casing, shell welding long-neck welding neckflange, make manhole open convenient, and the cost of overhaul reduces; The setting of expansion joint, effectively solved the problem that cryogenic liquide causes the housing shrinkage, can not reduce because stress is large the life problems of equipment; Whole manhole structure is arranged on position, horizontal low temperature vessel head middle and upper part, as shown in Figure 1.
Therefore, the present invention compares with existing cryogenic liquide storage-transport vessel manhole device, and have outstanding advantage and be: (1) arranges the manhole device, conveniently enters in low-temperature (low temperature) vessel and checks.(2) manhole device adopts ZXW(B) 400 expansion joints, connect respectively internal layer shell and outer casing, solve low-temperature (low temperature) vessel Material shrinkage problem; (3) adopt the ellipsoidal head of DN400 to be fixedly connected with inner casing, effectively guaranteed that inner casing is in adiabatic space; (4) manhole device adopts the long-neck welding neckflange, and sealing surface adopts the tongue and groove sealing, and sealing effect is obvious, can not affect the middle degree of vacuum of internal and external layer housing.(5) various adapters and other container attachment can be installed on manhole cover, will take over to concentrate and draw, can reduce and leak heat.
The accompanying drawing explanation
Accompanying drawing 1 is cryogenic liquide storage-transport vessel manhole device's provided by the present invention structural representation;
In accompanying drawing: 1, nut; 2, double-screw bolt; 3, manhole flange lid; 4, pad; 5, manhole flange; 6, manhole pipe nipple; 7, expansion joint; 8, shell ring; 9, DN400 ellipsoidal head; 10, end socket handle.11, shell end socket; 12, inner casing end socket
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.As shown in Figure 1, the invention provides a kind of cryogenic liquide storage-transport vessel manhole device, double-screw bolt 2, nut 1 are for being fixedly connected with manhole flange 5 and manhole flange lid 3, the long-neck welding neckflange that manhole flange 5 is DN400, an end is fixedly connected with the manhole pipe nipple, and an end is coated with the manhole cover 3 for sealing the manhole device, in the middle of manhole flange and manhole flange lid, shimming 4 is spiral wound gasket, the sealing surface form of manhole flange is the tongue and groove sealing, further strengthened sealing effect, manhole pipe nipple 6 welds with the shell end socket 11 of low-temperature (low temperature) vessel, adopt complete penetraction and fusion in welding, expansion joint 7 one ends are fixedly connected with the manhole pipe nipple, one end is fixedly connected with the shell ring 8 of DN400, the model of expansion joint is ZXW(B) 400, length and wave number are determined according to the spacing of inside and outside shell, shell ring 8 stretches in inner casing end socket 12, with the inner casing end socket, be fixedly connected with, one end is fixedly connected with the ellipsoidal head of DN400, end socket handle 10 is fixedly connected on the ellipsoidal head of DN400, in inner container during holding low-temperature liquid, expansion joint has effectively solved the contraction problem of low-temperature (low temperature) vessel material, various adapters and other container attachment can be installed on manhole cover, to take over to concentrate and draw, can reduce and leak heat.During maintenance, open manhole cover, the end socket of DN400 is disconnected, with hanging lock tube upper cover handle, end socket is taken out, reduced greatly maintenance expenses, also effectively guaranteed that inner casing is in adiabatic enclosed environment, this manhole device is arranged on the upper side of horizontal vessel end socket, away from a side of bearing, as shown in Figure 1, effectively reduce the stress of DN400 ellipsoidal head.
Finally it should be noted that: above embodiment is only in order to illustrate this explanation unrestricted technological scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to the above embodiments,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not break away from technological scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. a cryogenic liquide storage-transport vessel manhole device, comprise nut, double-screw bolt, manhole flange lid, pad, manhole flange, manhole pipe nipple, expansion joint, shell ring, end socket, end socket handle.Described bolt is for connecting manhole flange; The long-neck welding neckflange that described manhole flange is DN400; Described pad is spiral wound gasket; Described manhole pipe nipple is connected with the shell of low-temperature (low temperature) vessel; Described used for expansion joint is in connecting manhole pipe nipple and shell ring; The ellipsoidal head that described end socket is DN400; Described end socket handle is fixedly connected on the ellipsoidal head of DN400.
2. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1, it is characterized in that: described manhole flange is coated with for sealing manhole device's manhole cover.
3. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1, it is characterized in that: described manhole flange is arranged on the outer tank external body, for being fixedly connected with the outer casing of low-temperature (low temperature) vessel.
4. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1 is characterized in that: described manhole flange adopts the long-neck welding neckflange of DN400, and sealing surface adopts the tongue and groove sealing, and sealability is high.
5. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1, it is characterized in that: described expansion joint pattern is the high expansion joint of global formation small echo, and nominal diameter is DN400.
6. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1 is characterized in that: described used for expansion joint, in connecting manhole pipe nipple and shell ring, is arranged between the internal layer shell and outer casing of low-temperature (low temperature) vessel.
7. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1, it is characterized in that: described DN400 ellipsoidal head is welded on inner barrel inside, has effectively guaranteed the airtight performance of inner casing.
8. cryogenic liquide storage-transport vessel manhole device as claimed in claim 1, is characterized in that: various adapters and other container attachment can be installed on manhole cover, will take over to concentrate and draw, can reduce and leak heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310403889 CN103470950A (en) | 2013-09-07 | 2013-09-07 | Manhole device of low temperature liquid storing and transporting container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310403889 CN103470950A (en) | 2013-09-07 | 2013-09-07 | Manhole device of low temperature liquid storing and transporting container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103470950A true CN103470950A (en) | 2013-12-25 |
Family
ID=49795925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310403889 Pending CN103470950A (en) | 2013-09-07 | 2013-09-07 | Manhole device of low temperature liquid storing and transporting container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103470950A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665225A (en) * | 2017-10-16 | 2019-04-23 | 徐州德胜石油机械有限公司 | A kind of manhole cover open detection device |
| CN110056761A (en) * | 2018-01-19 | 2019-07-26 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum thermal insulation low temperature storage tank with the manhole device |
| CN110182935A (en) * | 2019-06-12 | 2019-08-30 | 河南小威环境科技有限公司 | A kind of catalytic ozonation reaction method and device |
| CN110056761B (en) * | 2018-01-19 | 2024-06-04 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum insulation low-temperature storage tank with same |
-
2013
- 2013-09-07 CN CN 201310403889 patent/CN103470950A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665225A (en) * | 2017-10-16 | 2019-04-23 | 徐州德胜石油机械有限公司 | A kind of manhole cover open detection device |
| CN110056761A (en) * | 2018-01-19 | 2019-07-26 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum thermal insulation low temperature storage tank with the manhole device |
| CN110056761B (en) * | 2018-01-19 | 2024-06-04 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum insulation low-temperature storage tank with same |
| CN110182935A (en) * | 2019-06-12 | 2019-08-30 | 河南小威环境科技有限公司 | A kind of catalytic ozonation reaction method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207848956U (en) | A kind of double-layer vacuum insulated storage tank peculiar to vessel with air chamber structure | |
| CN102865456B (en) | Novel LNG (Liquefied Natural Gas) vehicle-mounted gas bottle liner support structure | |
| CN102174983B (en) | Vertical-type low-temperature heat-insulation gas cylinder | |
| CN103998852A (en) | Vessel wall comprising a pipe | |
| KR102543434B1 (en) | Loading system of liquid hydrogen storage tank for ship | |
| CN204141244U (en) | Temperature measuring equipment and vessel | |
| CN103453311A (en) | Double-layered protective low-temperature liquid pressure storage tank | |
| CN202812785U (en) | Manhole device of low-temperature container | |
| CN103148341A (en) | Low-temperature storage tank with detector | |
| KR20200004608A (en) | Liquid hydrogen storage tank for ship | |
| CN103470950A (en) | Manhole device of low temperature liquid storing and transporting container | |
| CN102434779B (en) | Front supporting structure of horizontal liquefied gas bottle for vehicle | |
| CN202927468U (en) | Vacuum heat-insulating container and manhole structure thereof | |
| CN203671229U (en) | Heat insulating container | |
| CN205991321U (en) | low-temperature storage tank | |
| CN210567488U (en) | Large volume liquefied natural gas cylinder for vehicle | |
| CN105270780A (en) | Manhole device of low-temperature liquid storing and transporting container | |
| CN102588730A (en) | Cooling silane intermediate storage tank with outer coiled pipe | |
| CN102338279A (en) | Manhole structure of inner container and outer container of low-temperature heat-insulation container | |
| CN104235595A (en) | Horizontal double-layer buried storage tank | |
| CN208416851U (en) | A kind of insulation pump shell structure and low temperature immersed pump and low-temperature (low temperature) vessel for low temperature immersed pump | |
| KR20120127244A (en) | Structure of storing container for liquefied natural gas | |
| CN202501185U (en) | Outer-coil cooling silane intermediate storage tank | |
| CN207364640U (en) | A kind of Combined anti-explosion natural-gas storage tank | |
| KR101403621B1 (en) | Structure and manufacturing method of storing container for liquefied natural gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |