CN203146269U - Gas supplying device for dry gas sealing of compressor - Google Patents
Gas supplying device for dry gas sealing of compressor Download PDFInfo
- Publication number
- CN203146269U CN203146269U CN 201320016704 CN201320016704U CN203146269U CN 203146269 U CN203146269 U CN 203146269U CN 201320016704 CN201320016704 CN 201320016704 CN 201320016704 U CN201320016704 U CN 201320016704U CN 203146269 U CN203146269 U CN 203146269U
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- CN
- China
- Prior art keywords
- pipeline
- pressure nitrogen
- manually operated
- storage tank
- operated valve
- 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 - Fee Related
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Abstract
The utility model relates to a gas supplying device for dry gas sealing of a compressor, belongs to the technical field of dry gas sealing of compressors and aims to realize that ongoing gas can be supplied when medium-pressure nitrogen gas is used and utilization rate of the medium-pressure nitrogen gas is increased. The technical scheme includes that a low-pressure nitrogen gas storage tank is communicated with a unit seal through a first pipeline, a first check valve and a first manual valve are sequentially installed on the first pipeline, the first pipeline between the first manual valve and the unit seal is communicated with the medium-pressure nitrogen gas storage tank through a second pipeline, a second manual valve, a self-propelled pressure adjusting valve, a third manual valve, a second check valve and a fourth manual valve are sequentially installed at one end of the second pipeline and close to the medium-pressure nitrogen gas storage tank, the second pipeline between the third manual valve and the second check valve is communicated with the medium-pressure nitrogen gas storage tank through a third pipeline, and a fifth manual valve is installed on the third pipeline. The gas supplying device is mainly used for supplying gas for dry gas sealing of the compressor.
Description
Technical field
A kind of compressor dry gas seals of the utility model air feeder belongs to compressor dry gas seals technical field.
Background technique
Because the compressor dry gas seals has strict demand to the sealing nitrogen pressure, only use the low-pressure nitrogen air feed, following shortcoming is arranged: one, when supply air line damage or source of the gas deficiency, need to change gas holder, at this moment just must close whole supply air line, make the compressor interruption of work; Two, middle pressure nitrogen transfers low-pressure nitrogen earlier to, again to low-pressure nitrogen pipe network air feed, makes nitrogen emptying amount can not get effective recovery greatly, wastes bigger.
The model utility content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved provides the compressor dry gas seals air feeder of pressing nitrogen, also uninterrupted air feed in a kind of can the use, puies forward the utilization ratio of high pressure nitrogen.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of compressor dry gas seals air feeder, comprise the unit sealing, low-pressure nitrogen storage tank and middle pressure nitrogen storage tank, low-pressure nitrogen storage tank and unit sealing are by first pipeline connection, first safety check and first manually operated valve are installed on first pipeline successively, be communicated with middle pressure nitrogen storage tank by second pipeline on first pipeline between first manually operated valve and the unit sealing, the end near middle pressure nitrogen storage tank on described second pipeline is equipped with second manually operated valve successively, self-contained pressure regulator, the 3rd manually operated valve, second safety check and the 4th manually operated valve.
Second pipeline between described the 3rd manually operated valve and second safety check is communicated with middle pressure nitrogen storage tank by the 3rd pipeline, on described the 3rd pipeline the 5th manually operated valve is installed.
The utility model is compared the beneficial effect that has with prior art: the utility model has increased on original low-pressure nitrogen air feed basis presses the nitrogen supply air line in one, and be provided with self-contained pressure regulator at pipeline, use for sealing after directly middle pressure nitrogen being depressured to standard, improved the utilization ratio of middle pressure nitrogen; The use of many pipelines can not interrupted the work of compressor because of the damage of self-contained pressure regulator, has improved safety guarantee.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 is the unit sealing, and 2 is the low-pressure nitrogen storage tank, and 3 is middle pressure nitrogen storage tank, 4 is first pipeline, and 5 is first safety check, and 6 is first manually operated valve, 7 is second pipeline, 8 is second manually operated valve, and 9 is self-contained pressure regulator, and 10 is the 3rd manually operated valve, 11 is second safety check, 12 is the 4th manually operated valve, and 13 is the 3rd pipeline, and 14 is the 5th manually operated valve.
Embodiment
As shown in Figure 1, a kind of compressor dry gas seals of the utility model air feeder, comprise unit sealing 1, low-pressure nitrogen storage tank 2 and middle pressure nitrogen storage tank 3, low-pressure nitrogen storage tank and unit sealing 1 is communicated with by first pipeline 4, first safety check 5 and first manually operated valve 6 are installed on first pipeline 4 successively, be communicated with middle pressure nitrogen storage tank 3 by second pipeline 7 on first pipeline 4 between first manually operated valve 6 and the unit sealing 1, the end near middle pressure nitrogen storage tank 3 on described second pipeline 7 is equipped with second manually operated valve 8 successively, self-contained pressure regulator 9, the 3rd manually operated valve 10, second safety check 11 and the 4th manually operated valve 12.
Second pipeline 7 between described the 3rd manually operated valve 10 and second safety check 11 is communicated with middle pressure nitrogen storage tank 3 by the 3rd pipeline 13, on described the 3rd pipeline 13 the 5th manually operated valve 14 is installed.
Before second manually operated valve 8 with behind the 3rd manually operated valve 10 an on-the-spot pressure gauge is installed all on second pipeline 7, so that the field monitoring pipeline inner pressure.
Safety check is that open-shut device leans on the strength of media flow to open voluntarily or close, with the valve that prevents that medium from flowing backwards.Safety check belongs to the self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction.
Self-contained pressure regulator according to pressure point position minute valve before and two classes behind the valve, pressure point is used for the preceding constant pressure of modulating valve before valve the time; Pressure point is behind valve the time, is used for constant pressure behind the modulating valve, and self-contained pressure regulator 9 pressure points are behind valve in the utility model.
During the utility model proper functioning, first manually operated valve 6 and the 5th manually operated valve 14 are in closed condition, the middle nitrogen storage tank 3 interior middle pressure nitrogen of pressing pass through second pipeline 7, after second manually operated valve 8, self-contained pressure regulator 9 and 10 step-downs of the 3rd manually operated valve, flow through second safety check 11 and the 4th manually operated valve 12 enter in the unit sealing 1;
When self-contained pressure regulator 9 damages, open the 5th manually operated valve 14, close second manually operated valve 8 and the 3rd manually operated valve 10, the pressure of the 5th manually operated valve 14 is adjusted to the required nitrogen pressure of pipe network, enter into second pipeline 7 after making pressure nitrogen by the 5th manually operated valve 14 step-downs on the 3rd pipeline 13, and enter unit sealing 1 through second safety check 11 and the 4th manually operated valve 12, simultaneously self-contained pressure regulator 9 is keeped in repair, the manually operated valve of opening again on second pipeline 7 after maintenance is finished is enabled second pipeline, 7 air feed; Close the 5th manually operated valve 14.
When second pipeline 7 and the 3rd pipeline 13 all can't use, or the middle pressure nitrogen in the middle pressure nitrogen storage tank 3 uses up, during the middle pressure nitrogen storage tank 3 that need more renew, open first manually operated valve 6, enable first pipeline 4 and carry out the low-pressure nitrogen air feed, close all manually operated valves on second pipeline 7 and the 3rd pipeline 13; When recovering normal, second pipeline 7 uses or middle pressure nitrogen storage tank 3 is changed and made second pipeline 7 recover to use again after finishing.
Claims (2)
1. compressor dry gas seals air feeder, comprise unit sealing (1), low-pressure nitrogen storage tank (2) and middle pressure nitrogen storage tank (3), the low-pressure nitrogen storage tank is communicated with by first pipeline (4) with unit sealing (1), first safety check (5) and first manually operated valve (6) are installed on first pipeline (4) successively, it is characterized in that: first pipeline (4) between first manually operated valve (6) and the unit sealing (1) is gone up by second pipeline (7) and is communicated with middle pressure nitrogen storage tank (3), and the end that described second pipeline (7) is gone up near middle pressure nitrogen storage tank (3) is equipped with second manually operated valve (8) successively, self-contained pressure regulator (9), the 3rd manually operated valve (10), second safety check (11) and the 4th manually operated valve (12).
2. a kind of compressor dry gas seals air feeder according to claim 1, it is characterized in that: second pipeline (7) between described the 3rd manually operated valve (10) and second safety check (11) is communicated with middle pressure nitrogen storage tank (3) by the 3rd pipeline (13), and the 5th manually operated valve (14) is installed on described the 3rd pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320016704 CN203146269U (en) | 2013-01-14 | 2013-01-14 | Gas supplying device for dry gas sealing of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320016704 CN203146269U (en) | 2013-01-14 | 2013-01-14 | Gas supplying device for dry gas sealing of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146269U true CN203146269U (en) | 2013-08-21 |
Family
ID=48973800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320016704 Expired - Fee Related CN203146269U (en) | 2013-01-14 | 2013-01-14 | Gas supplying device for dry gas sealing of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075322A (en) * | 2013-01-14 | 2013-05-01 | 山西潞安矿业(集团)有限责任公司 | Dry gas seal and supply device for compressor |
| CN105156351A (en) * | 2015-09-11 | 2015-12-16 | 中国神华能源股份有限公司 | Control system of dry-gas sealed centrifugal pumps |
-
2013
- 2013-01-14 CN CN 201320016704 patent/CN203146269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075322A (en) * | 2013-01-14 | 2013-05-01 | 山西潞安矿业(集团)有限责任公司 | Dry gas seal and supply device for compressor |
| CN105156351A (en) * | 2015-09-11 | 2015-12-16 | 中国神华能源股份有限公司 | Control system of dry-gas sealed centrifugal pumps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140114 |