CN203743853U - LNG refrigerant recycling system - Google Patents
LNG refrigerant recycling system Download PDFInfo
- Publication number
- CN203743853U CN203743853U CN201420140595.6U CN201420140595U CN203743853U CN 203743853 U CN203743853 U CN 203743853U CN 201420140595 U CN201420140595 U CN 201420140595U CN 203743853 U CN203743853 U CN 203743853U
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- compressor
- cryogen
- recovery
- reclaims
- 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.)
- Expired - Lifetime
Links
- 238000004064 recycling Methods 0.000 title claims abstract description 12
- 239000003507 refrigerant Substances 0.000 title abstract description 24
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims description 7
- 238000012806 monitoring device Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 239000003949 liquefied natural gas Substances 0.000 abstract 4
- 239000007792 gaseous phase Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses an LNG (Liquefied Natural Gas) refrigerant recycling system. The LNG refrigerant recycling system comprises a refrigerant compressor, a recovery pipe, a liquid gathering tank, a refrigerant recovery buffer tank and a refrigerant recovery compressor; the recovery pipe is used for collecting a refrigerant leaking out of a compressor packing and feeding the refrigerant to the liquid gathering tank for gas-liquid separation, and then the gaseous-phase refrigerant separated out goes into the refrigerant recovery buffer tank; the refrigerant recovery compressor is used for compressing the refrigerant in the refrigerant recovery buffer tank and feeding the compressor refrigerant to a refrigerant main pipe for recycling. The refrigerant recovery compressor starts and stops automatically; when the pressure in the buffer tank is 30KPa, the refrigerant recovery compressor starts automatically; when the pressure in the buffer tank drops to 10KPa, the refrigerant recovery compressor stops running. The LNG refrigerant recycling system has the beneficial effects that the no refrigerant is discharged on spot in the running process of the refrigerant compressor, the leaking refrigerant is recycled, and therefore, explosion accidents are avoided.
Description
Technical field
The utility model relates to a kind of LNG cryogen recycling system device, relates in particular to cryogen compressor leakage-gas recovering system device.
Background technique
A large amount of cryogens that use in LNG liquefaction is produced, cryogen needs recycling, technological design cryogen reclaiming system is in the time of operation at present, the refrigerant gas of a small amount of leakage can directly be discharged in atmosphere by discharge passage, but in actual production process, cryogen compressor packing box air leakage is large, causes a large amount of cryogens emptying, causes waste, and the easy like this refrigerant gas that makes gathers at the scene, reach explosion limit and cause security incident.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of LNG cryogen recycling system device.
The technical solution of the utility model is: a kind of LNG cryogen recycling system, comprise that cryogen compressor, recovery tube, liquid collecting tank, cryogen reclaim knock out drum, cryogen reclaims compressor, described cryogen compressor packing box is provided with gas leakage recovery tube, recovery tube is connected with described liquid collecting tank import, liquid collecting tank outlet is reclaimed knock out drum import with cryogen and is connected by pipeline, described cryogen reclaims knock out drum outlet and is connected by pipeline with cryogen recovery compressor inlet, and described cryogen reclaims compressor outlet and is connected by pipeline with cryogen compressor inlet house steward.
Preferably, described cryogen reclaims knock out drum pressure monitoring device is housed, and described cryogen reclaims compressor pressure interlock is housed.
The beneficial effects of the utility model are: in cryogen compressor operating process, cryogen discharges without scene, and the cryogen of leakage is recycled, and has avoided the generation of explosive accident.
Brief description of the drawings
The structural representation that Fig. 1 provides for the utility model.
In figure: 1. cryogen compressor, 2. recovery tube, 3. liquid collecting tank, 4. cryogen reclaims knock out drum, and 5. cryogen reclaims compressor.
Embodiment
In order more clearly to understand the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the filling leakage recovery tube 2 of cryogen compressor 1 is connected with liquid collecting tank 3, liquid collecting tank 3 reclaims knock out drum 4 imports with cryogen and is connected by pipeline, cryogen recovery knock out drum 4 exports with 5 imports of cryogen recovery compressor and is connected by pipeline, and cryogen recovery compressor 5 exports with cryogen compressor 1 intake header and is connected by pipeline.
Reclaim compressor 5 automatic start-stops for realizing cryogen, cryogen reclaims knock out drum 4 pressure monitoring device is housed, and cryogen reclaims compressor 5 pressure interlock is housed.
In cryogen compressor 1 running, cryogen leaks out from stuffing box, enter liquid collecting tank 3 by recovery tube 2 and carry out gas-liquid separation, gas phase cryogen after separation enters cryogen by pipeline and reclaims knock out drum 4, in the time that cryogen recovery knock out drum 4 pressure exceed 30KPa, the pressure interlock of pressure monitoring device control refrigerant-recovery compressor 5, starting cryogen recovery compressor 5 works, after the gas phase cryogen compression of cryogen recovery knock out drum 4 interior collections, get back to cryogen compressor 1 intake header, when cryogen reclaims knock out drum 4 pressure when to 10KPa, pressure monitoring device pilot pressure interlock, stopping cryogen recovery compressor 5 works, operation so repeatedly.The volume that described cryogen reclaims knock out drum 4 is 5m3, and the cryogen amount that cryogen recovery compressor 5 reclaims is approximately 1.2 ㎏/h.
Claims (2)
1. a LNG cryogen recycling system, it is characterized in that: comprise cryogen compressor (1), recovery tube (2), liquid collecting tank (3), cryogen reclaims knock out drum (4), cryogen reclaims compressor (5), described cryogen compressor (1) stuffing box is provided with gas leakage recovery tube (2), recovery tube (2) is connected with described liquid collecting tank (3) import, liquid collecting tank (3) outlet is reclaimed knock out drum (4) import with cryogen and is connected by pipeline, described cryogen reclaims knock out drum (4) outlet and is connected by pipeline with the import of cryogen recovery compressor (5), described cryogen reclaims compressor (5) outlet and is connected by pipeline with cryogen compressor (1) intake header.
2. a kind of LNG cryogen recycling system according to claim 1, is characterized in that: described cryogen reclaims knock out drum (4) pressure monitoring device is housed, and described cryogen reclaims compressor (5) pressure interlock is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140595.6U CN203743853U (en) | 2014-03-27 | 2014-03-27 | LNG refrigerant recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140595.6U CN203743853U (en) | 2014-03-27 | 2014-03-27 | LNG refrigerant recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743853U true CN203743853U (en) | 2014-07-30 |
Family
ID=51343654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420140595.6U Expired - Lifetime CN203743853U (en) | 2014-03-27 | 2014-03-27 | LNG refrigerant recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196702A (en) * | 2014-08-25 | 2014-12-10 | 大连华阳密封股份有限公司 | Dry gas seal first-level leakage recovery system of natural gas long-distance transport pipe compressor |
| CN105116865A (en) * | 2015-09-09 | 2015-12-02 | 江苏德邦工程有限公司 | LNG (liquefied natural gas) filling station optimization control system |
-
2014
- 2014-03-27 CN CN201420140595.6U patent/CN203743853U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196702A (en) * | 2014-08-25 | 2014-12-10 | 大连华阳密封股份有限公司 | Dry gas seal first-level leakage recovery system of natural gas long-distance transport pipe compressor |
| CN105116865A (en) * | 2015-09-09 | 2015-12-02 | 江苏德邦工程有限公司 | LNG (liquefied natural gas) filling station optimization control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |