CN112253996A - Modular structure for open rack vaporizer system - Google Patents

Modular structure for open rack vaporizer system Download PDF

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Publication number
CN112253996A
CN112253996A CN202011085323.7A CN202011085323A CN112253996A CN 112253996 A CN112253996 A CN 112253996A CN 202011085323 A CN202011085323 A CN 202011085323A CN 112253996 A CN112253996 A CN 112253996A
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CN
China
Prior art keywords
heat exchange
module
seawater
platform
steel structure
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
Application number
CN202011085323.7A
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Chinese (zh)
Inventor
游宇
刘益弘
王思博
张宝珍
鲁君瑞
沈楠
黄永刚
蒋宇
安小霞
高天喜
彭涛明
李艳辉
赵月峰
李文忠
吕明月
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 Huanqiu Contracting and Engineering Corp
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China Huanqiu Contracting and Engineering Corp
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 Huanqiu Contracting and Engineering Corp filed Critical China Huanqiu Contracting and Engineering Corp
Priority to CN202011085323.7A priority Critical patent/CN112253996A/en
Publication of CN112253996A publication Critical patent/CN112253996A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • 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
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/081—Mounting arrangements for vessels for large land-based storage vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more 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
    • 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
    • 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
    • F17C2227/03—Heat exchange with the fluid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a modular structure of an open rack type gasifier system, which is provided with a heat exchange plate module and a seawater pipeline adjusting platform module, wherein the heat exchange plate module is provided with a steel structure frame body, the inside of the steel structure frame body is divided into a plurality of heat exchange spaces by a steel structure retaining wall, the bottom end of each heat exchange space is provided with an LNG tube bundle communicated with an LNG header pipe, the top end of each heat exchange space is provided with an NG tube bundle communicated with the NG header pipe, the LNG tube bundles are connected with the NG tube bundles by the heat exchange tube bundles or heat exchange tube plates, and the heat exchange spaces are provided with water tanks corresponding to; the seawater pipeline adjusting platform module is arranged on one side of the heat exchange plate module and comprises a seawater main pipe and seawater branch pipes communicated with the seawater main pipe respectively, adjusting valves are arranged on the seawater branch pipes, and the seawater branch pipes are communicated with a water tank in the heat exchange space.

Description

Modular structure for open rack vaporizer system
Technical Field
The present invention relates to an Open Rack Vaporizer (ORV) system for use in an LNG receiving station.
Background
In LNG receiving stations, an Open Rack Vaporizer (ORV) system is typically deployed in the vaporizer unit.
The conventional Open Rack Vaporizer (ORV) system mainly includes:
1. tube bundle plate (mainly including LNG header, bottom LNG header, heat exchange panel (heat exchange tube bundle), top NG header, transition joint)
2. Seawater distribution system (mainly comprising seawater collecting pipe, seawater distribution pipeline, seawater distribution valve, single and double side flume)
3. Steel construction (including top frame, internal maintenance platform, windbreak panel).
The systems are complex, manufacturers supply bulk materials, the types of parts reach thousands of parts, the total quantity of bolts is nearly ten thousand, the field construction amount is huge, the construction debugging period is long, the progress of the whole project is seriously influenced, foreign manufacturers are difficult to coordinate, the field service cost of the manufacturers is high, and the assembly time cost and the labor cost of the whole system are further improved.
In addition, the existing Open Rack Vaporizer (ORV) system has the problems of fuzzy function division, unclear interface between systems, higher requirement of water tank construction on site construction and the like.
To sum up, the disadvantages of the existing Open Rack Vaporizer (ORV) system are:
1. the construction amount is large, the installation period is long, and the field project progress is seriously influenced;
2. the number of parts is large, and parts are easy to be lost and lost on site;
3. the coordination of manufacturers is difficult, and the service labor cost is high;
4. the installation is complex, and the requirements on installation instructors and site constructors are high;
5. the concrete water tank civil construction precision requirement is high;
6. the functional systems are not clearly divided, and the interface is fuzzy.
Disclosure of Invention
The invention aims to provide a modular structure of an open rack gasifier system, which divides the open rack gasifier (ORV) system into a plurality of modules according to physical space in a modular mode, each module can be independently prized, and a concrete retaining wall is replaced by a steel structure and a carbon steel (coating) structure so as to facilitate transportation and reduce the workload of site construction.
In order to achieve the purpose, the invention adopts the technical scheme that:
the modular structure of an open rack vaporizer system, characterized by having heat exchange plate modules and seawater pipeline conditioning platform modules, wherein:
the heat exchange plate module is provided with a steel structure frame body, the inside of the steel structure frame body is divided into a plurality of heat exchange spaces by a steel structure retaining wall, the bottom end of each heat exchange space is provided with an LNG tube bundle communicated with an LNG main pipe, the top end of each heat exchange space is provided with an NG tube bundle communicated with an NG main pipe, the LNG tube bundles and the NG tube bundles are connected through heat exchange tube bundles or heat exchange tube plates, and the heat exchange spaces are provided with water tanks corresponding to the heat exchange tube bundles or the heat;
the seawater pipeline adjusting platform module is arranged on one side of the heat exchange plate module and comprises a seawater main pipe and seawater branch pipes communicated with the seawater main pipe respectively, adjusting valves are arranged on the seawater branch pipes, and the seawater branch pipes are communicated with a water tank in the heat exchange space.
The modular structure of open rack vaporizer system, wherein, the opposite side of heat transfer board module is leaned on the position and is equipped with maintenance platform module, it includes steel construction maintenance platform and maintenance guardrail to go up maintenance platform module, steel construction maintenance platform can supply the maintenance personal to walk through, and the maintenance guardrail is fixed in steel construction maintenance platform one side.
The modular structure of open rack vaporizer system, wherein, the opposite side of heat transfer board module is leaned on the position to be equipped with down and observes the platform module, it includes steel construction observation platform and observation guardrail to observe the platform module down, steel construction observation platform can supply the observation personnel to walk through, and it is fixed in steel construction observation platform one side to observe the guardrail.
The modular structure of the open rack vaporizer system, wherein a top walkway module is arranged on one side of the top of the heat exchange plate module, and the top walkway module is provided with a railing.
The modular structure of the open rack vaporizer system, wherein one side of the heat exchange plate module is provided with a ladder platform module, the ladder platform module comprises a ladder and a maintenance platform fixed on the ladder, and one side of the maintenance platform is provided with a handrail.
The modular structure of the open rack vaporizer system, wherein the water tank is further communicated with an internal maintenance walkway, and the internal maintenance walkway is communicated with the ladder platform module.
The open rack vaporizer system is of a modular structure, wherein a steel structure support is further arranged below each heat exchange space, and the NG tube bundle, the heat exchange tube bundle and the LNG tube bundle are connected in series and then suspended in the heat exchange space and slidably supported by the steel structure supports.
The invention has the following advantages:
1. the whole investment of equipment (the equipment cost and the total cost such as field installation and debugging) is reduced;
2. the system functionalization and modularization level is improved, and the field construction period can be greatly shortened;
3. the service cost of field labor and machines is reduced;
4. the installation, debugging, driving, operation and maintenance are convenient;
5. the maintenance and the replacement of parts are convenient;
6. the concrete retaining wall is of a steel structure and a carbon steel (coating) structure, and is greatly convenient for field installation and subsequent maintenance.
Drawings
FIGS. 1 and 2 are front and side views of the overall structure of the present invention;
FIG. 3 is a schematic structural view of an upper service platform module;
FIG. 4 is a schematic structural diagram of a lower observation platform module;
FIG. 5 is a schematic structural view of a top walkway module;
fig. 6 is a schematic structural view of a heat exchange plate module;
FIG. 7 is a schematic structural view of a seawater pipeline conditioning platform module;
figure 8 is a schematic structural view of a ladder platform module.
Description of reference numerals: an upper maintenance platform module 1; a steel structure maintenance platform 11; the guard rail 12 is maintained; a lower observation platform module 2; a steel structure observation platform 21; an observation fence 22; a top walkway module 3; a rail 31; a heat exchange plate module 4; a steel structural frame body 41; a steel structural retaining wall 42; a heat exchange space 43; a LNG tube bundle 44; an NG tube bundle 45; a heat exchange tube bundle 46; a water tank 47; an internal service aisle 48; steel structural supports 49; a seawater pipeline adjusting platform module 5; a seawater main pipe 51; a seawater branch pipe 52; the regulating valve 53; a ladder platform module 6; a ladder 61; a maintenance platform 62; an armrest 63.
Detailed Description
As shown in fig. 1 and 2, the modular structure of the open rack vaporizer system provided by the present invention mainly comprises an upper maintenance platform module 1, a lower observation platform module 2, a top walkway module 3, a heat exchange plate module 4, a seawater pipeline adjusting platform module 5 and a ladder platform module 6, wherein:
the upper maintenance platform module 1 is arranged at an upper position close to one side of the heat exchange plate module 4, and mainly comprises a steel structure maintenance platform 11 and a maintenance guardrail 12, as shown in fig. 3, wherein the steel structure maintenance platform 11 can be used for maintenance personnel to walk through, and the maintenance guardrail 12 is fixed at one side of the steel structure maintenance platform 11 and is used for protecting the maintenance personnel;
the lower observation platform module 2 is arranged at a position close to the lower part of one side of the heat exchange plate module 4, and is preferably positioned below the upper maintenance platform module 1, as shown in fig. 4, the lower observation platform module comprises a steel structure observation platform 21 and observation guardrails 22, the steel structure observation platform 21 can be used for observation personnel to walk through, and the observation guardrails 22 are fixed at one side of the steel structure observation platform 21 and are used for protecting the observation personnel;
the top walkway module 3 is arranged at one side of the top of the heat exchanger plate module 4, as shown in fig. 5, it mainly comprises a balustrade 31 for protecting the personnel maintaining the top;
the heat exchange plate module 4 is used for exchanging heat between liquid LNG and seawater, and has a structure shown in fig. 6, and is integrally a steel structure frame body 41, the interior of the heat exchange plate module is divided into a plurality of heat exchange spaces 43 by a steel structure retaining wall 42, an LNG tube bundle 44 communicated with an LNG header pipe is arranged at the bottom end of each heat exchange space 43, an NG tube bundle 45 communicated with an NG header pipe is arranged at the top end of each heat exchange space 43, the LNG tube bundle 44 and the NG tube bundle 45 are connected by a heat exchange tube bundle 46 (or a heat exchange tube plate), and the heat exchange space 43 is provided with a water tank 47 corresponding to each heat exchange tube bundle 46 (or a heat exchange tube plate) so that the heat exchange tube bundle 46 (or the heat exchange tube plate) is in thermal; a steel structure support 49 is further arranged below each heat exchange space 43, and the NG tube bundle 45, the heat exchange tube bundle 46 (or heat exchange tube plate) and the LNG tube bundle 44 are connected in series, suspended in the heat exchange space 43 and slidably supported by the steel structure support 49;
the seawater pipeline adjusting platform module 5 is disposed at the other side of the heat exchange plate module 4, and is used for adjusting the amount of seawater entering the heat exchange plate module 4, as shown in fig. 7, the seawater pipeline adjusting platform module includes a seawater main pipe 51 and seawater branch pipes 52 respectively communicated with the seawater main pipe 51, each seawater branch pipe 52 is provided with an adjusting valve 53, and the seawater branch pipes 52 are communicated with a water tank 47 in the heat exchange space 43, and can provide heat for the heat exchange tube bundle 46 (or heat exchange tube plate);
the ladder platform module 6 is arranged on the other side of the heat exchange plate module 4 and is used for enabling a maintenance person to walk to the seawater pipeline adjusting platform module 5 and the top walkway module 3, as shown in fig. 8, the ladder platform module mainly comprises a ladder 61 and a maintenance platform 62 fixed on the ladder 61, and one side of the maintenance platform 62 is provided with a handrail 63 for protecting the maintenance person; furthermore, maintenance personnel can access the aforementioned internal maintenance walkway 48 through the ladder 61 platform module 6.
When the natural gas heat exchanger is used, seawater enters the bottom of the water tank 47 from the seawater main pipe 51 and the seawater branch pipe 52 and then overflows from the top of the water tank 47, so that the seawater overflows the outer side wall of the heat exchange tube bundle 46 (or the heat exchange tube plate), at the moment, liquid natural gas enters the heat exchange tube bundle 46 (or the heat exchange tube plate) from the LNG main pipe and the LNG tube bundle 44, absorbs heat in the seawater, is converted into gaseous natural gas, is collected by the NG tube bundle 45, and is conveyed out from the NG main pipe to the downstream; and the seawater after heat exchange is discharged out of the system through a drainage pipeline at the bottom of the heat exchange space 43.
The upper maintenance platform module 1, the lower observation platform module 2, the top walkway module 3, the heat exchange plate module 4, the seawater pipeline adjusting platform module 5 and the ladder 61 platform module 6 can be manufactured and molded respectively so as to be convenient for skid-mounted transportation respectively, and then simple assembly can be carried out on a construction site, so that field installation and follow-up maintenance can be greatly facilitated.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (7)

1. The modular structure of an open rack vaporizer system, characterized by having heat exchange plate modules and seawater pipeline conditioning platform modules, wherein:
the heat exchange plate module is provided with a steel structure frame body, the inside of the steel structure frame body is divided into a plurality of heat exchange spaces by a steel structure retaining wall, the bottom end of each heat exchange space is provided with an LNG tube bundle communicated with an LNG main pipe, the top end of each heat exchange space is provided with an NG tube bundle communicated with an NG main pipe, the LNG tube bundles and the NG tube bundles are connected through heat exchange tube bundles or heat exchange tube plates, and the heat exchange spaces are provided with water tanks corresponding to the heat exchange tube bundles or the heat;
the seawater pipeline adjusting platform module is arranged on one side of the heat exchange plate module and comprises a seawater main pipe and seawater branch pipes communicated with the seawater main pipe respectively, adjusting valves are arranged on the seawater branch pipes, and the seawater branch pipes are communicated with a water tank in the heat exchange space.
2. The modular structure of an open rack gasifier system as claimed in claim 1, wherein an upper maintenance platform module is disposed on the other side of the heat exchange plate module, the upper maintenance platform module comprises a steel structure maintenance platform and a maintenance guardrail, the steel structure maintenance platform is used for maintenance personnel to walk through, and the maintenance guardrail is fixed on one side of the steel structure maintenance platform.
3. The modular structure of an open rack gasifier system as claimed in claim 1, wherein a lower observation platform module is disposed at a position below the other side of the heat exchange plate module, the lower observation platform module comprises a steel structure observation platform and an observation guardrail, the steel structure observation platform is used for observers to walk through, and the observation guardrail is fixed at one side of the steel structure observation platform.
4. The modular structure of an open rack gasifier system according to claim 1, wherein a top walkway module is provided on the top side of the heat exchange plate module, the top walkway module having railings.
5. The modular structure of an open rack gasifier system according to claim 1, wherein a ladder platform module is provided at one side of the heat exchanger plate module, the ladder platform module comprising a ladder and a maintenance platform secured to the ladder, the maintenance platform having a handrail provided at one side thereof.
6. The modular structure of an open rack vaporizer system as recited in claim 5, wherein the water trough is further in communication with an internal service walkway in communication with the ladder platform module.
7. The open rack vaporizer system of claim 1, wherein steel structural supports are provided below each heat exchange space, and the NG tube bundle, the heat exchange tube bundle and the LNG tube bundle are suspended in the heat exchange space in series and slidably supported by the steel structural supports.
CN202011085323.7A 2020-10-12 2020-10-12 Modular structure for open rack vaporizer system Pending CN112253996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011085323.7A CN112253996A (en) 2020-10-12 2020-10-12 Modular structure for open rack vaporizer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011085323.7A CN112253996A (en) 2020-10-12 2020-10-12 Modular structure for open rack vaporizer system

Publications (1)

Publication Number Publication Date
CN112253996A true CN112253996A (en) 2021-01-22

Family

ID=74242831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011085323.7A Pending CN112253996A (en) 2020-10-12 2020-10-12 Modular structure for open rack vaporizer system

Country Status (1)

Country Link
CN (1) CN112253996A (en)

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