CN206221200U - Refrigerant compressor uses BOG gases as the system of blanket gas - Google Patents
Refrigerant compressor uses BOG gases as the system of blanket gas Download PDFInfo
- Publication number
- CN206221200U CN206221200U CN201621159493.4U CN201621159493U CN206221200U CN 206221200 U CN206221200 U CN 206221200U CN 201621159493 U CN201621159493 U CN 201621159493U CN 206221200 U CN206221200 U CN 206221200U
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- Prior art keywords
- refrigerant compressor
- liquid nitrogen
- utility
- compression machine
- model
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Abstract
The utility model is related to energy recovery to utilize technical field, specifically discloses the system that a kind of refrigerant compressor uses BOG gases as blanket gas, including LNG storage tank and the flash gas compression machine of LNG storage tank connection；The flash gas compression machine connects refrigerant compressor by pipeline, and the blanket gas of refrigerant compressor is used for by the BOG gases after the compression of flash gas compression machine.The utility model has the advantages that, it is to avoid liquid nitrogen pump fills the amount of liquid nitrogen of pump consumption, reaches energy-saving purpose；Liquid nitrogen pump is no longer needed to use, maintaining expense is reduced；Refrigerant compressor startup is no longer limited by the influence reduction startup of liquid nitrogen pump running status and needs the time.
Description
Technical field
The utility model is related to energy recovery to utilize technical field, particularly relates to a kind of refrigerant compressor and uses BOG gases
As the system of blanket gas.
Background technology
In mill practices operation, when refrigerant compressor starts, blanket gas uses nitrogen as blanket gas, first has to start liquid
Nitrogen pump, when liquid nitrogen pump pressure rises to 1.4MP, compressor could start, and often be run on startup because of liquid nitrogen pump abnormal, make
Required value is not reached into nitrogen pressure, the startup of refrigerant compressor will be forced time delay, system is often started on time, started
Filling pump before liquid nitrogen pump will discharge 0.5 ton of liquid nitrogen, and liquid nitrogen consumption is big, and the gas that LNG storage tank is flashed off is not obtained
It is rational to utilize.
Utility model content
The purpose of this utility model is to provide the system that a kind of refrigerant compressor uses BOG gases as blanket gas, solves
Blanket gas influence refrigerant compressor normally starts and the big problem of liquid nitrogen consumption, reasonable energy utilization.
To achieve these goals, the utility model employs following technical scheme：Refrigerant compressor uses BOG gases
As the system of blanket gas, including LNG storage tank and the flash gas compression machine of LNG storage tank connection；The flash gas compression machine passes through
Pipeline connects refrigerant compressor, and the blanket gas of refrigerant compressor is used for by the BOG gases after the compression of flash gas compression machine.
The beneficial effects of the utility model are：The amount of liquid nitrogen that liquid nitrogen pump fills pump consumption is avoided, is reached energy-saving
Purpose；
Liquid nitrogen pump is no longer needed to use, maintaining expense is reduced；
Refrigerant compressor startup is no longer limited by the influence reduction startup of liquid nitrogen pump running status and needs the time.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment technical scheme, below will be to make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only the utility model in order to more clearly
The utility model embodiment or technical scheme of the prior art are illustrated, below by institute in p- embodiment or description of the prior art
The accompanying drawing for needing to use is briefly described, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refrigerant compressor as shown in Figure 1 uses BOG gases as the system of blanket gas, including LNG storage tank and LNG storages
Tank connected flash gas compression machine；The flash gas compression machine connects refrigerant compressor by pipeline, by flash gas compression machine
A part of BOG gases after compression are used for the blanket gas of refrigerant compressor.
Enter following process by another part BOG gases after the compression of flash gas compression machine, through flash gas compression machine pressure
Entering First Heat Exchanger after contracting, after gas heating, into regeneration gas heating boiler, heating-up temperature is to entering molecule after 260 DEG C
Sieve, to saturation molecular sieve carries out heat-activated and deviates from the moisture in natural gas, for heating by 260 DEG C of high-temperature natural gas
High-temperature natural gas after through heat exchanger lower the temperature after cooled down into cooler, finally enter next workshop section.Changed by two
High-temperature gas of the hot device by 27 DEG C of gas at normal temperature with 260 DEG C is exchanged heat, and the gas after heat exchange then is each introduced into original again
Flow.
Reduce refrigerant compressor and start the nitrogen use level for needing, start needs liquid nitrogen at least 0.5 ton, refrigerant compressor every time
Startup do not started risk by the abnormal interference reduction of liquid nitrogen pump operation, reduce blanket gas time and save 20 points of time
Clock.
Refrigerant compressor blanket gas was so both solved the problems, such as, while not influenceing the following process of BOG gases again.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (1)
1. refrigerant compressor uses BOG gases as the system of blanket gas, it is characterised in that：Including LNG storage tank and LNG storage tank
The flash gas compression machine of connection；
The flash gas compression machine connects refrigerant compressor by pipeline, is used by the BOG gases after the compression of flash gas compression machine
In the blanket gas of refrigerant compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159493.4U CN206221200U (en) | 2016-10-25 | 2016-10-25 | Refrigerant compressor uses BOG gases as the system of blanket gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159493.4U CN206221200U (en) | 2016-10-25 | 2016-10-25 | Refrigerant compressor uses BOG gases as the system of blanket gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221200U true CN206221200U (en) | 2017-06-06 |
Family
ID=58789058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621159493.4U Expired - Fee Related CN206221200U (en) | 2016-10-25 | 2016-10-25 | Refrigerant compressor uses BOG gases as the system of blanket gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167205A (en) * | 2017-12-25 | 2018-06-15 | 沈阳透平机械股份有限公司 | LNG compressors are with pressure to start the method for determining |
-
2016
- 2016-10-25 CN CN201621159493.4U patent/CN206221200U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167205A (en) * | 2017-12-25 | 2018-06-15 | 沈阳透平机械股份有限公司 | LNG compressors are with pressure to start the method for determining |
| CN108167205B (en) * | 2017-12-25 | 2019-09-17 | 沈阳透平机械股份有限公司 | The starting with pressure of LNG compressor determines method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20181025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |