CN109758822A - A kind of method of Hand scarf cryogenic media conveying pump inlet strainer - Google Patents
A kind of method of Hand scarf cryogenic media conveying pump inlet strainer Download PDFInfo
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- CN109758822A CN109758822A CN201711098542.7A CN201711098542A CN109758822A CN 109758822 A CN109758822 A CN 109758822A CN 201711098542 A CN201711098542 A CN 201711098542A CN 109758822 A CN109758822 A CN 109758822A
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- low
- pump
- cryogenic media
- filter
- pipeline
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Abstract
The invention discloses a kind of methods of Hand scarf cryogenic media conveying pump inlet strainer, it is made of low-pressure nitrogen storage tank, gate valve, filter, delivery pump, agent reservoir, heater etc., the step of it is cleared up is as follows: first, close the low-temperature brake valve on cryogenic media storage tank to cryogenic media delivery pump pipeline, it closes cryogenic media delivery pump to pump discharge and sends the low-temperature brake valve on installing pipes outside, close pump discharge and send the low-temperature brake valve that device is gone to reflux on cryogenic media storage tank pipeline outside；Secondly, opening the low-temperature brake valve gone on torch assembly pipeline, steam inlet valve and condensate outlet valve that heater is equipped with are opened, pump inlet strainer is heated, accumulated ice in filter is melted；Finally open low-temperature brake valve, the check-valves on low-pressure nitrogen storage tank to pump intake pipeline, pump inlet strainer and cryogenic media delivery pump are purged, the filter that accumulated ice in filter is purged again is equipped with cryogenic media conveying pump intake to torch assembly is dredged.
Description
Technical field
The present invention relates to a kind of methods of chemical industry equipment cleaning, and in particular to a kind of conveying of Hand scarf cryogenic media is pumped into
It makes a slip of the tongue the method for filter.
Background technique
The pump of cryogenic system operation, because minor amount of water in system or carbon dioxide accumulate the shape at the inlet filter of pump
At solid ice or dry ice, the conveying capacity of pump is caused to substantially reduce, needs frequently to dismantle cleaning inlet filter, not only increase
Labor intensity is overhauled, while also bringing hidden danger to safety in production.
Summary of the invention
Shortcomings and deficiencies present in view of the above technology, the invention aims to solve accumulated ice in filter or do
Ice avoids the problem that frequently dismantling pump inlet strainer, provides a kind of Hand scarf cryogenic media conveying pump inlet strainer
Method.
To achieve the goals above, the technical solution that the present invention solves is, a kind of Hand scarf cryogenic media conveying is pumped into
Make a slip of the tongue the method for filter, by low-pressure nitrogen storage tank, low-temperature brake valve, check-valves, filter, cryogenic media delivery pump, torch assembly,
Pump discharge sends device, cryogenic media storage tank, heater, pump intake pipeline, fastening bolt, steam inlet valve, condensate outlet valve outside
The step of connection composition, cleaning, is as follows:
1. closing the low-temperature brake valve on cryogenic media storage tank to cryogenic media delivery pump pipeline, cryogenic media delivery pump is closed to pump
The low-temperature brake valve on installing pipes is sent in outlet outside, close pump discharge send outside device to reflux go it is low on cryogenic media storage tank pipeline
Warm gate valve；
2. opening the low-temperature brake valve gone on torch assembly pipeline, steam inlet valve and condensate outlet that heater is equipped with are opened
Valve heats pump inlet strainer, melts accumulated ice or dry ice in filter；
3. the low-temperature brake valve on low-pressure nitrogen storage tank to pump intake pipeline, check-valves are opened again, to pump inlet strainer and low temperature
Medium delivery pump is purged, by filter accumulated ice or dry ice purged again to torch assembly, convey cryogenic media
The filter that pump intake is equipped with is dredged.
Beneficial effects of the present invention: rationally, structure is simple for design, solves frequently disassembly pump inlet strainer after use
Problem reduces maintenance labor intensity, improves pump duty.
Detailed description of the invention
Fig. 1 is the flow chart of Hand scarf of the present invention.
Fig. 2 is the structural schematic diagram of heater of the present invention.
In figure: 1. low-pressure nitrogen storage tank, 2. low-temperature brake valve, 3. check-valves, 4. filter, 5. cryogenic media delivery pump, 6. fire
Torch device 7. is sent 11. fastening bolt of device 8. cryogenic media storage tank, 9. heater, 10. pump intake pipeline, 12. steam outside and is entered
Mouth 13. condensate outlet valve of valve.
Specific embodiment
A kind of method of Hand scarf cryogenic media conveying pump inlet strainer, is by low-pressure nitrogen as shown in Fig. 1-2
Storage tank (1), low-temperature brake valve (2), check-valves (3), filter (4), cryogenic media delivery pump (5), torch assembly (6), pump discharge
Send device (7), cryogenic media storage tank (8), heater (9), pump intake pipeline (10), fastening bolt (11), steam inlet valve outside
(12), the step of condensate outlet (13) connection composition, cleaning, is as follows:
1. closing the low-temperature brake valve (2) on cryogenic media storage tank (8) to cryogenic media delivery pump (5) pipeline, cryogenic media is closed
Delivery pump (5) to pump discharge sends the low-temperature brake valve (2) on device (7) pipeline outside, closes pump discharge and sends device (7) to reflux outside
Low-temperature brake valve (2) on cryogenic media storage tank (8) pipeline；
2. opening the low-temperature brake valve (2) gone on torch assembly (6) pipeline, the steam inlet valve that heater (9) are equipped with is opened
(12) and condensate outlet valve (13), pump inlet strainer (4) is heated, accumulated ice or dry ice in filter are melted
Change；
3. the low-temperature brake valve (2) on low-pressure nitrogen storage tank (1) to pump intake pipeline (10), check-valves (3) are opened again, to pump intake
Filter (4) and cryogenic media delivery pump (5) are purged, by filter accumulated ice or dry ice purge again to torch fill
(6) are set, the filter (4) that cryogenic media delivery pump (5) entrance is housed is dredged.
The above is only a specific embodiment of the present invention, all to be made a non-material change to the present invention using this design,
The scope of protection of the invention should all be fallen into.
Claims (1)
1. a kind of method of Hand scarf cryogenic media conveying pump inlet strainer, is by low-pressure nitrogen storage tank (1), low-temperature brake valve
(2), check-valves (3), filter (4), cryogenic media delivery pump (5), torch assembly (6), pump discharge send device (7), low temperature outside
Agent reservoir (8), heater (9), pump intake pipeline (10), fastening bolt (11), steam inlet valve (12), condensate outlet (13)
Connection composition, which is characterized in that the step of cleaning is as follows:
1. closing the low-temperature brake valve (2) on cryogenic media storage tank (8) to cryogenic media delivery pump (5) pipeline, cryogenic media is closed
Delivery pump (5) to pump discharge sends the low-temperature brake valve (2) on device (7) pipeline outside, closes pump discharge and sends device (7) to reflux outside
Low-temperature brake valve (2) on cryogenic media storage tank (8) pipeline；
2. opening the low-temperature brake valve (2) gone on torch assembly (6) pipeline, the steam inlet valve that heater (9) are equipped with is opened
(12) and condensate outlet valve (13), pump inlet strainer (4) is heated, accumulated ice or dry ice in filter are melted
Change；
3. the low-temperature brake valve (2) on low-pressure nitrogen storage tank (1) to pump intake pipeline (10), check-valves (3) are opened again, to pump intake
Filter (4) and cryogenic media delivery pump (5) are purged, and the interior accumulated ice or dry ice of filter are purged again to torch and filled
(6) are set, the filter (4) that cryogenic media delivery pump (5) entrance is housed is dredged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098542.7A CN109758822A (en) | 2017-11-09 | 2017-11-09 | A kind of method of Hand scarf cryogenic media conveying pump inlet strainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098542.7A CN109758822A (en) | 2017-11-09 | 2017-11-09 | A kind of method of Hand scarf cryogenic media conveying pump inlet strainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109758822A true CN109758822A (en) | 2019-05-17 |
Family
ID=66449212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098542.7A Pending CN109758822A (en) | 2017-11-09 | 2017-11-09 | A kind of method of Hand scarf cryogenic media conveying pump inlet strainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109758822A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3026211B1 (en) * | 1998-11-02 | 2000-03-27 | 西芝電機株式会社 | Nitrogen gas generator |
| CN102008847A (en) * | 2010-07-02 | 2011-04-13 | 陕西神木化学工业有限公司 | Cleaning method of bag filter used in low temperature methanol washing process |
| CN205977418U (en) * | 2016-07-21 | 2017-02-22 | 南京电力设备质量性能检验中心 | Anti -icing dehydrating unit of built -in gas turbine air intake system |
-
2017
- 2017-11-09 CN CN201711098542.7A patent/CN109758822A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3026211B1 (en) * | 1998-11-02 | 2000-03-27 | 西芝電機株式会社 | Nitrogen gas generator |
| CN102008847A (en) * | 2010-07-02 | 2011-04-13 | 陕西神木化学工业有限公司 | Cleaning method of bag filter used in low temperature methanol washing process |
| CN205977418U (en) * | 2016-07-21 | 2017-02-22 | 南京电力设备质量性能检验中心 | Anti -icing dehydrating unit of built -in gas turbine air intake system |
Non-Patent Citations (1)
| Title |
|---|
| 毛绍荣等: "《现代空分设备技术与操作原理》", 31 August 2005 * |
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Application publication date: 20190517 |