CN204842378U - Device of sweeping gas or fluid pipeline - Google Patents
Device of sweeping gas or fluid pipeline Download PDFInfo
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- CN204842378U CN204842378U CN201520463349.9U CN201520463349U CN204842378U CN 204842378 U CN204842378 U CN 204842378U CN 201520463349 U CN201520463349 U CN 201520463349U CN 204842378 U CN204842378 U CN 204842378U
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- gas
- fluid pipeline
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- pipeline
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Abstract
The utility model provides a device of sweeping gas or fluid pipeline which characterized in that the device is along gas or liquid traffic direction in proper order: gas or fluid pipeline (1), gas / liquid valve (I), check valve (II), do in proper order along sweeping the medium traffic direction: pipeline (2), blow down valve (III), check valve (IV) sweep, and controlling means (3).
Description
Technical field
The present invention relates to the device of a kind of purge gas or fluid pipeline, espespecially prevent the application in gas or fluid passage in impurity blocking.
Background technology
The oil circuit related in coal-fired electric generation furnace, compressed air, high-pressure blast etc., it is strong that the existing each pipeline of coal-fired electric generation furnace not yet designs the purging reliability purged or design, and easily occurs line clogging phenomenon, the problem that line clogging causes:
1., safeguard that frequently, maintenance is large, and maintenance cost is high;
2., that oil circuit blocking can cause oil gun to put into operation is limited, and ignition smooth combustion promptness reduces;
3., affect boiler safety to produce.
Summary of the invention
utility model content:
For reaching above object, the present invention is:
A device for purge gas or fluid pipeline, is characterized in that this device is followed successively by along gas or liquid traffic direction: gas or fluid pipeline (1), gas/liquid valve (I), check-valves (II); Be followed successively by along blowing medium traffic direction: purge pipeline (2), blow down valve (III), check-valves (IV); And control device (3).
Further, described gas/liquid valve (I) and check-valves (II) are contained on gas or fluid pipeline (1).
Further, described blow down valve (III) and check-valves (IV) are contained in and purge on pipeline (2).
Further, after described purging pipeline (2) is connected to the check-valves (II) on gas or fluid pipeline (1).
Further, described gas/liquid valve (I), blow down valve (III) are electric valve.
Further, described control device (3) is small PLC or other electrical control equipments.
Further, described gas/liquid valve (I) and blow down valve (III) are controlled in an interlocked manner by control device (3), and when gas/liquid valve (I) is opened, blow down valve (III) cuts out, and when gas/liquid valve (I) cuts out, blow down valve (III) is opened.
Further, check-valves (II), check-valves (IV) prevent ducted medium back flow.
Further, the blowing medium purged in pipeline (2) can prevent gas or fluid pipeline (1) blocking.
Principle of the present invention and feature are: with blow down valve (II), gas or liquid valve (I) are out that one closes, and when gas or liquid are normal use, vapour-liquid valve (I) is opened, and blow down valve (II) cuts out; When gas or liquid do not use, vapour-liquid valve (I) is closed, and blow down valve (II) is opened; Open blow down valve (II) when gas or liquid do not use and make in gas or fluid pipeline (1), have gas or liquid and other medium circulation always, make gas or fluid pipeline (1) be in guard mode, prevent the impurity blocking pipe taken back when gas or liquid backflow; Check-valves (II) and check-valves (IV) mainly prevent gas or liquid and other medium from blowing back into vapour-liquid valve (1) and blow down valve (2), protect vapour-liquid valve (1) and blow down valve (2).
accompanying drawing illustrates:
Fig. 1 is the device schematic diagram of a kind of purge gas or fluid pipeline.
specific embodiments:
In conjunction with the device schematic diagram of description and a kind of purge gas of Fig. 1 or fluid pipeline, the device of a kind of purge gas or fluid pipeline is described further.
This device is followed successively by along gas or liquid traffic direction: gas or fluid pipeline (1), gas/liquid valve (I), check-valves (II); Be followed successively by along blowing medium traffic direction: purge pipeline (2), blow down valve (III), check-valves (IV); And control device (3).
Gas/liquid valve (I) and check-valves (II) are contained on gas or fluid pipeline (1).Blow down valve (III) and check-valves (IV) are contained in and purge on pipeline (2).After purging pipeline (2) is connected to the check-valves (II) on gas or fluid pipeline (1).Gas
/liquid valve (I), blow down valve (III) are electric valve.Control device (3) is small PLC or other electrical control equipments.Gas
/liquid valve (I) and blow down valve (III) are controlled in an interlocked manner by control device (3), and when gas/liquid valve (I) is opened, blow down valve (III) cuts out, and when gas/liquid valve (I) cuts out, blow down valve (III) is opened.Check-valves (II), check-valves (IV) prevent ducted medium back flow.The blowing medium purged in pipeline (2) can prevent gas or fluid pipeline (1) blocking.
Gas or the liquid vapour-liquid valve (I) when normal use is opened, and blow down valve (II) cuts out; When gas or liquid do not use, vapour-liquid valve (I) is closed, and blow down valve (II) is opened; Open blow down valve (II) when gas or liquid do not use and make have medium to circulate in gas or fluid pipeline (1) always; gas or fluid pipeline (1) is made to be in guard mode; prevent the impurity blocking pipe taken back when gas or liquid backflow, check-valves (II) and check-valves (IV) mainly prevent gas or liquid and other medium from blowing back into vapour-liquid valve (1) and blow down valve (2).
Above enforcement; it is only the general description to this patent; not the scope of this patent is limited; under the prerequisite not departing from this patent design spirit; anyone the various distortion made the technical scheme of this patent and improvement, in the protection domain that the claims that all should fall into this patent are determined.
Claims (9)
1. a device for purge gas or fluid pipeline, is characterized in that this device is followed successively by along gas or liquid traffic direction: gas or fluid pipeline (1), gas/liquid valve (I), check-valves (II); Be followed successively by along blowing medium traffic direction: purge pipeline (2), blow down valve (III), check-valves (IV); And control device (3).
2. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, is characterized in that gas/liquid valve (I) and check-valves (II) are contained on gas or fluid pipeline (1).
3. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, is characterized in that blow down valve (III) and check-valves (IV) are contained in and purges on pipeline (2).
4. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, after is characterized in that purging pipeline (2) is connected to the check-valves (II) on gas or fluid pipeline (1).
5. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, is characterized in that gas/liquid valve (I), blow down valve (III) is electric valve.
6. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, is characterized in that control device (3) is for small PLC or other electrical control equipments.
7. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, it is characterized in that gas/liquid valve (I) and blow down valve (III) are controlled in an interlocked manner by control device (3), when gas/liquid valve (I) is opened, blow down valve (III) cuts out, and when gas/liquid valve (I) cuts out, blow down valve (III) is opened.
8. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, is characterized in that check-valves (II), check-valves (IV) prevents ducted medium back flow.
9. the device of a kind of purge gas as claimed in claim 1 or fluid pipeline, is characterized in that the blowing medium purged in pipeline (2) can prevent gas or fluid pipeline (1) blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520463349.9U CN204842378U (en) | 2015-07-01 | 2015-07-01 | Device of sweeping gas or fluid pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520463349.9U CN204842378U (en) | 2015-07-01 | 2015-07-01 | Device of sweeping gas or fluid pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204842378U true CN204842378U (en) | 2015-12-09 |
Family
ID=54732975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520463349.9U Active CN204842378U (en) | 2015-07-01 | 2015-07-01 | Device of sweeping gas or fluid pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204842378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916328A (en) * | 2019-05-10 | 2020-11-10 | 北京北方华创微电子装备有限公司 | Flow path interlocking structure, air inlet device and semiconductor processing equipment |
-
2015
- 2015-07-01 CN CN201520463349.9U patent/CN204842378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916328A (en) * | 2019-05-10 | 2020-11-10 | 北京北方华创微电子装备有限公司 | Flow path interlocking structure, air inlet device and semiconductor processing equipment |
| CN111916328B (en) * | 2019-05-10 | 2024-02-27 | 北京北方华创微电子装备有限公司 | Flow path interlocking structure, air inlet device and semiconductor processing equipment |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |