CN103245149A - Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device - Google Patents
Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device Download PDFInfo
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- CN103245149A CN103245149A CN2013101950878A CN201310195087A CN103245149A CN 103245149 A CN103245149 A CN 103245149A CN 2013101950878 A CN2013101950878 A CN 2013101950878A CN 201310195087 A CN201310195087 A CN 201310195087A CN 103245149 A CN103245149 A CN 103245149A
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Abstract
The invention discloses a mixed refrigerant recovery device which comprises a mixed refrigerant extraction device and a high-pressure storage tank. The mixed refrigerant extraction device can be communicated with a mixed refrigerant circulation system, a first valve is arranged at an inlet of the extraction device, an inlet of the high-pressure storage tank is communicated with an outlet of the extraction device, an outlet of the high-pressure storage tank can be communicated with the mixed refrigerant circulation system, and a second valve is arranged at the outlet of the high-pressure storage tank. According to the technical scheme, mixed refrigerants in the mixed refrigerant circulation system are conveyed into the high-pressure storage tank by the extraction device and are temporarily stored, the mixed refrigerants in the high-pressure storage tank are conveyed into the mixed refrigerant circulation system through a pipeline after the device is maintained, waste of the mixed refrigerants is effectively reduced, and the production cost of liquefied natural gas is reduced. The invention further provides a mixed refrigerant circulation liquefied natural gas device with the mixed refrigerant recovery device.
Description
Technical field
The present invention relates to the liquefied gas transport field, particularly a kind of mix refrigerant circulation liquefaction gas plant and mix refrigerant retracting device.
Background technology
In the prior art, mix refrigerant circulation liquefaction gas engineering comprises the mix refrigerant circulatory system and natural gas liquefaction system, the pipeline of the mix refrigerant circulatory system and the natural gas liquefaction system layout that crosses, as shown in Figure 1, mix refrigerant circulatory system compressed mixed refrigerant, compressed mix refrigerant circulates in pipeline, absorb the heat in the natural gas liquefaction system, make liquefied gas be in the low temperature compressive state, generally break down when needing repairing at factory maintenance or equipment, need be with the valve open of the mix refrigerant circulatory system, mix refrigerant in the mix refrigerant circulatory system is vented in the air, after maintenance is finished, in the mix refrigerant circulatory system, charge into mix refrigerant again.When maintenance with mix refrigerant emptying, can cause the waste of resource, bring no small economic loss, according to statistics, about 200,000 RMB of the loss that primary coolant emptying causes have increased the production cost of liquefied gas.
Therefore, how to reduce the economic loss that mix refrigerant emptying causes when needing repairing because factory's maintenance or equipment break down, become the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of mix refrigerant retracting device, to reduce the economic loss that causes because of the emptying of car inspection and repair mix refrigerant.This programme also provides a kind of mix refrigerant circulation liquefaction gas plant with above-mentioned mix refrigerant retracting device.
For achieving the above object, the invention provides following technical scheme:
A kind of mix refrigerant retracting device comprises:
The mix refrigerant extracting device that can be communicated with the mix refrigerant circulatory system, the import department of described extracting device is provided with first valve;
The high-pressure storage tank that import is communicated with the outlet of described extracting device, described high-pressure storage tank outlet can be communicated with the mix refrigerant circulatory system, and the outlet of described high-pressure storage tank is provided with second valve.
Preferably, in above-mentioned mix refrigerant retracting device, described extracting device is compressor, the import department of described compressor is provided with first surge tank, described first surge tank can be communicated with the described mix refrigerant circulatory system, and the outlet of described compressor is communicated with the import of described high-pressure storage tank.
This programme also provides a kind of mix refrigerant circulation liquefaction gas plant, comprise the mix refrigerant circulatory system, also comprise the mix refrigerant retracting device that is communicated with the described mix refrigerant circulatory system, described mix refrigerant retracting device such as above-mentioned any described mix refrigerant retracting device.
Preferably, in above-mentioned mix refrigerant circulation liquefaction gas plant, the surge tank that the import of first surge tank of described mix refrigerant retracting device and the pressure of the described mix refrigerant circulatory system are lower is communicated with.
From technique scheme as can be seen, mix refrigerant retracting device provided by the invention, break down when needing repairing at factory maintenance or equipment, mix refrigerant in the hybrid refrigeration cycle system is transported in the high-pressure storage tank by compressibility, temporarily store, after the shop equipment maintenance is finished, again the mix refrigerant in the high-pressure storage tank is transported in the hybrid refrigeration cycle system by pipeline, the mode that this programme adopts, break down when needing repairing at factory maintenance or equipment, will mix refrigerant emptying, but mix refrigerant is recovered in the high-pressure storage tank, after maintenance was finished, mix refrigerant can also utilize again, effectively reduce the waste of mix refrigerant, reduced the production cost of liquefied gas.
This programme also provides a kind of mix refrigerant circulation liquefaction gas plant with above-mentioned mix refrigerant retracting device, because above-mentioned mix refrigerant retracting device has above-mentioned effect, mix refrigerant circulation liquefaction gas plant with this mix refrigerant retracting device also has above-mentioned technique effect, no longer introduces at this.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the mix refrigerant circulatory system that Fig. 1 provides for prior art of the present invention;
The flow chart that the mix refrigerant circulatory system that Fig. 2 provides for the embodiment of the invention is communicated with the mix refrigerant recovery system.
The specific embodiment
The invention discloses a kind of mix refrigerant retracting device, to reduce the economic loss that causes because of the emptying of car inspection and repair mix refrigerant.This programme also provides a kind of mix refrigerant circulation liquefaction gas plant with above-mentioned mix refrigerant retracting device.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 2, the flow chart that the mix refrigerant circulatory system that Fig. 2 provides for the embodiment of the invention is communicated with the mix refrigerant recovery system.
A kind of mix refrigerant retracting device comprises:
The extracting device 2 that can be communicated with the mix refrigerant circulatory system, the import department of extracting device 2 is provided with first valve 4;
The high-pressure storage tank 3 that import is communicated with the outlet of extracting device 2, high-pressure storage tank 3 outlets can be communicated with the mix refrigerant circulatory system, and the outlet of high-pressure storage tank 3 is provided with second valve 5.
In this programme, has the mix refrigerant retracting device that can be communicated with the mix refrigerant circulatory system, the mix refrigerant retracting device that this programme provides can be communicated with the mix refrigerant circulatory system always, when like this equipment being overhauled or when needing the balancing equipment internal pressure, can at any time the mix refrigerant in the mix refrigerant circulatory system be discharged in the high-pressure storage tank convenience of the use of intensifier; Also can need outwards to be communicated with the mix refrigerant circulatory system in the discharging at mix refrigerant, this connected mode can reduce the volume of mix refrigerant circulation liquefaction gas plant.During use, first valve 4 is opened, be communicated with the mix refrigerant circulatory system and mix refrigerant retracting device, and second valve 5 closed, mix refrigerant is stored in high-pressure storage tank 3, mix refrigerant is stored under the effect of extracting device 2 in the high-pressure storage tank 3, closes extracting device 2 after extraction is finished, and close first valve 4; When overhaul of the equipments is finished, second valve 5 is opened, and the gas in the high-pressure storage tank 3 is discharged in the mix refrigerant circulatory system.This programme has been set up the mix refrigerant retracting device, when factory maintenance or equipment break down when needing repairing, mix refrigerant can directly be discharged in the mix refrigerant retracting device, after overhaul of the equipments is finished, the mix refrigerant in the mix refrigerant retracting device is discharged in the mix refrigerant circulatory system, in prior art, factory's maintenance or equipment break down when needing repairing again, the scheme of mix refrigerant emptying has reduced economic loss.
In order further to optimize technique scheme, in a specific embodiment of the present invention, extracting device 2 is compressor, and the import department of compressor is provided with first surge tank 1, first surge tank 1 can be communicated with the mix refrigerant circulatory system, and the outlet of compressor is communicated with the import of high-pressure storage tank 3.What compressor sucked is low-pressure gas, mix refrigerant is before the process compressor in this programme, carry out step-down by first surge tank 1, guarantee that compressor can start, the number of first surge tank 1 is decided according to concrete working condition, after the extraction of the mix refrigerant in the mix refrigerant circulatory system was finished, the gas pressure in the high-pressure storage tank 3 can reach 2400Kpa.g.The part that pressure is lower in preferred selection first surge tank 1 and the mix refrigerant circulatory system is communicated with, and to reduce the volume of equipment, reduces cost, convenient for maintaining.Certainly, this programme also can adopt other devices that can realize this programme, and this programme is not done concrete restriction.
A kind of mix refrigerant circulation liquefaction gas plant, comprise the mix refrigerant circulatory system, also comprise the mix refrigerant retracting device that is communicated with the mix refrigerant circulatory system, the mix refrigerant retracting device is above-mentioned any described mix refrigerant retracting device.
This programme also provides a kind of mix refrigerant circulation liquefaction gas plant, the mix refrigerant retracting device is communicated with the mix refrigerant circulatory system, factory's maintenance or equipment break down when needing repairing, open first valve 4, close second valve 5, by extracting device 2 mix refrigerant in the mix refrigerant circulatory system is drawn in the high-pressure storage tank 3 of mix refrigerant retracting device and gets final product, reduced the economic loss that mix refrigerant emptying causes that needs repairing because factory's maintenance or equipment break down.
In order further to optimize technique scheme, in a specific embodiment of the present invention, the surge tank that the import of first surge tank 1 of mix refrigerant retracting device and the pressure of the mix refrigerant circulatory system are lower is communicated with.Because compressor starts under the low pressure condition, in order to guarantee that compressor can start, need before compressor, add step-down equipment, volume for reduction equipment, the surge tank that pressure in first surge tank 1 and the mix refrigerant circulatory system is lower is communicated with, and high-pressure storage tank 3 is communicated with the mix refrigerant circulatory system, when extracting mix refrigerant, open first valve 4, close second valve 5, compressor extracts mix refrigerant, and the mix refrigerant in the mix refrigerant circulatory system is drawn in the high-pressure storage tank 3; Overhaul of the equipments is finished, open second valve 5, mix refrigerant is discharged in the mix refrigerant circulatory system, mix refrigerant can circulate in the mix refrigerant circulatory system-high-pressure storage tank-this pipeline of the mix refrigerant circulatory system, and high-pressure storage tank 3 also can play the effect of buffer system pressure oscillation.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a mix refrigerant retracting device is characterized in that, comprising:
The mix refrigerant extracting device (2) that can be communicated with the mix refrigerant circulatory system, the import department of described extracting device (2) is provided with first valve (4);
The high-pressure storage tank (3) that import is communicated with the outlet of described extracting device (2), described high-pressure storage tank (3) outlet can be communicated with the mix refrigerant circulatory system, and the outlet of described high-pressure storage tank (3) is provided with second valve (5).
2. mix refrigerant retracting device according to claim 1, it is characterized in that, described extracting device (2) is compressor, the import department of described compressor is provided with first surge tank (1), described first surge tank (1) can be communicated with the described mix refrigerant circulatory system, and the outlet of described compressor is communicated with the import of described high-pressure storage tank (3).
3. mix refrigerant circulation liquefaction gas plant, comprise the mix refrigerant circulatory system, it is characterized in that, also comprise the mix refrigerant retracting device that is communicated with the described mix refrigerant circulatory system, any described mix refrigerant retracting device among described mix refrigerant retracting device such as the claim 1-2.
4. mix refrigerant circulation liquefaction gas plant according to claim 3 is characterized in that, the surge tank that the import of first surge tank (1) of described mix refrigerant retracting device and the pressure of the described mix refrigerant circulatory system are lower is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101950878A CN103245149A (en) | 2013-05-23 | 2013-05-23 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101950878A CN103245149A (en) | 2013-05-23 | 2013-05-23 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
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| CN103245149A true CN103245149A (en) | 2013-08-14 |
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| CN2013101950878A Pending CN103245149A (en) | 2013-05-23 | 2013-05-23 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822417A (en) * | 2014-02-18 | 2014-05-28 | 华南理工大学 | Refrigerant concentration control system for single-stage mixed refrigerant natural gas liquefaction processes |
| CN104266422A (en) * | 2014-10-17 | 2015-01-07 | 山东齐鲁石化工程有限公司 | Refrigerant recovery process and system of refrigerating system |
| CN104748463A (en) * | 2013-12-25 | 2015-07-01 | 新地能源工程技术有限公司 | Mixed refrigerant recovering and supplementing method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021377A (en) * | 2006-10-11 | 2007-08-22 | 张元才 | Cold-producing medium recovering and reusing machine |
| CN101769655A (en) * | 2010-01-25 | 2010-07-07 | 大连三洋压缩机有限公司 | Automatic recovery and fill system of refrigeration system |
| CN102538389A (en) * | 2011-12-19 | 2012-07-04 | 中国海洋石油总公司 | Mixed refrigerant pre-cooling system applied to base-load natural gas liquefaction plant |
| CN102997524A (en) * | 2011-09-16 | 2013-03-27 | 万事康股份有限公司 | Refrigerant recycling machine |
| CN203364521U (en) * | 2013-05-23 | 2013-12-25 | 重庆耐德能源装备集成有限公司 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
-
2013
- 2013-05-23 CN CN2013101950878A patent/CN103245149A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021377A (en) * | 2006-10-11 | 2007-08-22 | 张元才 | Cold-producing medium recovering and reusing machine |
| CN101769655A (en) * | 2010-01-25 | 2010-07-07 | 大连三洋压缩机有限公司 | Automatic recovery and fill system of refrigeration system |
| CN102997524A (en) * | 2011-09-16 | 2013-03-27 | 万事康股份有限公司 | Refrigerant recycling machine |
| CN102538389A (en) * | 2011-12-19 | 2012-07-04 | 中国海洋石油总公司 | Mixed refrigerant pre-cooling system applied to base-load natural gas liquefaction plant |
| CN203364521U (en) * | 2013-05-23 | 2013-12-25 | 重庆耐德能源装备集成有限公司 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748463A (en) * | 2013-12-25 | 2015-07-01 | 新地能源工程技术有限公司 | Mixed refrigerant recovering and supplementing method and device |
| CN104748463B (en) * | 2013-12-25 | 2017-04-05 | 新地能源工程技术有限公司 | A kind of mix refrigerant is reclaimed and compensation process and device |
| CN103822417A (en) * | 2014-02-18 | 2014-05-28 | 华南理工大学 | Refrigerant concentration control system for single-stage mixed refrigerant natural gas liquefaction processes |
| CN104266422A (en) * | 2014-10-17 | 2015-01-07 | 山东齐鲁石化工程有限公司 | Refrigerant recovery process and system of refrigerating system |
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Application publication date: 20130814 |
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