CN102913421A - Vacuum set system of glycol steam injection pump - Google Patents
Vacuum set system of glycol steam injection pump Download PDFInfo
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- CN102913421A CN102913421A CN2012104439428A CN201210443942A CN102913421A CN 102913421 A CN102913421 A CN 102913421A CN 2012104439428 A CN2012104439428 A CN 2012104439428A CN 201210443942 A CN201210443942 A CN 201210443942A CN 102913421 A CN102913421 A CN 102913421A
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Abstract
The invention relates to a vacuum set system of a glycol steam injection pump, which is characterized in that second-grade injection pumps (22) are arranged between an air outlet of a first spraying condenser (31) and an air inlet of a second spraying condenser (32); two second-grade injection pumps (22) are arranged in parallel; third-grade injection pumps (23) are arranged between an air outlet of the second spraying condenser (32) and an air inlet of a third spraying condenser (33); two third-grade injection pumps (23) are arranged; and more than two uniformly-distributed nozzles are arranged at the tops of a final condensation polymerization scraper plate condenser (11) and a second pre-condensation-polymerization scraper plate condenser (12). The vacuum set system of the glycol steam injection pump has the advantages of avoiding the blocking of the second-grade injection pumps and the third-grade injection pumps, avoiding a manufacturing fault caused by parking and repairing, and guaranteeing the stable operation of the vacuum set system of the glycol steam injection pump.
Description
Technical field
The present invention relates to a kind of ethylene glycol vapor pump vacuum machine group system.
Background technique
When producing differentiated product, EG(ethylene glycol) jet pump vacuum machine group system often breaks down, and causes and can not normally move, and must stop and process, and larger to systematic influence, stopping, it is larger to process economic loss.Find after deliberation, in production run, because the content of the low-melting-point material in the raw material and oligomer and ash content is more, under the condition of high vacuum, after being extracted out by the vacuum unit with ethylene glycol steam, enter successively one-level jet pump, two-stage injection pump and three grades of jet pumps.Because the one-level jet pump is high temperature heating agent chuck, these materials are difficult to rest in the jet pump, thereby can not stop up easily; And two-stage injection pump and three grades of jet pumps do not have high temperature heating agent chuck, these part foreign material, can be easy to stick in the jet pump, therefore the obstruction of two-stage injection pump and three grades of jet pumps just appears in several days in ethylene glycol vapor pump vacuum machine group system through being everlasting, cause the hydraulic performance decline of vacuum unit, do not reach production requirement, therefore needing stops immediately rushes to repair processing, causes fault in production.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of obstruction of avoiding two-stage injection pump and three grades of jet pumps is provided, the repairing of avoiding stopping causes fault in production, guarantees the ethylene glycol vapor pump vacuum machine group system of the stable operation of ethylene glycol vapor pump vacuum machine group system.
The object of the present invention is achieved like this:
A kind of ethylene glycol vapor pump vacuum machine group system, the one-level jet pump that it is arranged after comprising in the past successively, the first spray condenser, the two-stage injection pump, the second spray condenser, three grades of jet pumps, the 3rd spray condenser and vacuum water-ring pump, described one-level jet pump, the suction port of two-stage injection pump and three grades of jet pumps all passes into EG steam, the air outlet of described one-level jet pump links to each other with the suction port of the first spray condenser, described two-stage injection pump is arranged between the suction port of the air outlet of the first spray condenser and the second spray condenser, described two-stage injection parallel connection of pumps is provided with two, described three grades of jet pumps are arranged between the suction port of the air outlet of the second spray condenser and the 3rd spray condenser, described three grades of jet pumps have been arranged in parallel two, and the air outlet of described the 3rd spray condenser links to each other with the vacuum water-ring pump.
As a kind of preferred, the spray EG discharge port of described the first spray condenser, the second spray condenser and the 3rd spray condenser all is connected in vacuum unit vacuum liquid sealing groove, described vacuum unit vacuum liquid sealing groove is connected in the top EG mouth spray of the first spray condenser, the second spray condenser and the 3rd spray condenser by circulating line, be provided with from front to back recycle pump and heat exchanger on the described circulating line.
As a kind of preferred, the suction port of described one-level jet pump links to each other with the air outlet of the poly-scraper condenser of final minification, and the top of the poly-scraper condenser of described final minification is provided with the poly-uniform shower nozzle of scraper condenser of two above final minifications.
As a kind of preferred, the suction port of described the first spray condenser links to each other with the air outlet of the second precondensation scraper condenser, and the top of described the second precondensation scraper condenser is provided with the uniform shower nozzle of the second precondensation scraper condenser more than two.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has been arranged in parallel three grades of jet pumps, online circuit switched handling failure owing to being arranged in parallel two two-stage injection pumps between the first spray condenser and the second spray condenser between the second spray condenser and the 3rd spray condenser; At precondensation scraper condenser top uniform shower nozzle is set, scraper plate is not captured the impurity thing that gets off again capture, control from the source, and then alleviate the rate of breakdown of vacuum unit, particularly alleviate the rate of fault of two-stage injection pump and three grades of jet pumps; Top at the poly-scraper condenser of final minification arranges uniform shower nozzle, scraper plate is not captured the impurity thing that gets off again capture, and controls from the source, and then alleviates the rate of breakdown of vacuum unit.Therefore the present invention has the obstruction of avoiding two-stage injection pump and three grades of jet pumps, and the repairing of avoiding stopping causes fault in production, guarantees the advantage of the stable operation of ethylene glycol vapor pump vacuum machine group system.
Description of drawings
Fig. 1 is the flow chart of ethylene glycol vapor pump vacuum machine group system of the present invention.
Wherein:
Final minification gathers scraper condenser 11, the second precondensation scraper condenser 12
One-level jet pump 21, two-stage injection pump 22, three grades of jet pumps 23,
The first spray condenser 31, the second spray condenser 32, the 3rd spray condenser 33
Vacuum water-ring pump 4
Vacuum unit vacuum liquid sealing groove 5
Final minification gathers the uniform shower nozzle 6 of scraper condenser
The uniform shower nozzle 7 of the second precondensation scraper condenser
Circulating line 8
Embodiment
Referring to Fig. 1, a kind of ethylene glycol vapor pump vacuum machine group system that the present invention relates to, it comprises that final minification gathers scraper condenser 11, the second precondensation scraper condenser 12, vacuum unit vacuum liquid sealing groove 5, the one-level jet pump 21 of arranging successively in the past, the first spray condenser 31, two-stage injection pump 22, the second spray condenser 32, three grades of jet pumps 23, the 3rd spray condenser 33 and vacuum water-ring pump 4, described one-level jet pump 21, the suction port of two-stage injection pump 22 and three grades of jet pumps 23 all passes into EG steam, the suction port of described one-level jet pump 21 links to each other with the air outlet of the poly-scraper condenser 11 of final minification, the suction port of the poly-scraper condenser 11 of described final minification also is connected with the air outlet of final polycondensation reactor, the top of the poly-scraper condenser 11 of described final minification is provided with the poly-uniform shower nozzle 6 of scraper condenser of four final minifications, the uniform shower nozzle 6 of the poly-scraper condenser of described four final minifications is used for spray EG, the air outlet of described one-level jet pump 21 links to each other with the suction port of the first spray condenser 31, the suction port of described the first spray condenser 31 links to each other with the air outlet that the second precondensation scraper condenser 12 is arranged, the suction port of described the second precondensation scraper condenser 12 also is connected with the air outlet of the second precondensation still, the top of described the second precondensation scraper condenser 12 is provided with four uniform shower nozzles 7 of the second precondensation scraper condenser, the uniform shower nozzle 7 of described four the second precondensation scraper condensers is used for spray EG, described two-stage injection pump 22 is arranged between the suction port of the air outlet of the first spray condenser 31 and the second spray condenser 32, described two-stage injection pump 22 has been arranged in parallel two, described three grades of jet pumps 23 are arranged between the suction port of the air outlet of the second spray condenser 32 and the 3rd spray condenser 33, described three grades of jet pumps 23 have been arranged in parallel two, the air outlet of described the 3rd spray condenser 33 links to each other with vacuum water-ring pump 4, described the first spray condenser 31, the spray EG discharge port of the second spray condenser 32 and the 3rd spray condenser 33 all is connected in vacuum unit vacuum liquid sealing groove 5, described vacuum unit vacuum liquid sealing groove 5 is connected in the first spray condenser 31 by circulating line 8, the top EG mouth spray of the second spray condenser 32 and the 3rd spray condenser 33 is provided with recycle pump 9 and heat exchanger 10 from front to back on the described circulating line 8.
Claims (4)
1. ethylene glycol vapor pump vacuum machine group system, the one-level jet pump (21) that it is arranged after comprising in the past successively, the first spray condenser (31), two-stage injection pump (22), the second spray condenser (32), three grades of jet pumps (23), the 3rd spray condenser (33) and vacuum water-ring pump (4), described one-level jet pump (21), the suction port of two-stage injection pump (22) and three grades of jet pumps (23) all passes into EG steam, the air outlet of described one-level jet pump (21) links to each other with the suction port of the first spray condenser (31), it is characterized in that described two-stage injection pump (22) is arranged between the suction port of the air outlet of the first spray condenser (31) and the second spray condenser (32), described two-stage injection pump (22) has been arranged in parallel two, described three grades of jet pumps (23) are arranged between the suction port of the air outlet of the second spray condenser (32) and the 3rd spray condenser (33), described three grades of jet pumps (23) have been arranged in parallel two, and the air outlet of described the 3rd spray condenser (33) links to each other with vacuum water-ring pump (4).
2. a kind of ethylene glycol vapor pump vacuum machine group system according to claim 1, it is characterized in that described the first spray condenser (31), the spray EG discharge port of the second spray condenser (32) and the 3rd spray condenser (33) all is connected in vacuum unit vacuum liquid sealing groove (5), described vacuum unit vacuum liquid sealing groove (5) is connected in the first spray condenser (31) by circulating line (8), the top EG mouth spray of the second spray condenser (32) and the 3rd spray condenser (33) is provided with recycle pump (9) and heat exchanger (10) from front to back on the described circulating line (8).
3. a kind of ethylene glycol vapor pump vacuum machine group system according to claim 1, the suction port that it is characterized in that described one-level jet pump (21) links to each other with the air outlet of the poly-scraper condenser (11) of final minification, and the top that described final minification gathers scraper condenser (11) is provided with the poly-uniform shower nozzle of scraper condenser (6) of two above final minifications.
4. a kind of ethylene glycol vapor pump vacuum machine group system according to claim 1, the suction port that it is characterized in that described the first spray condenser (31) links to each other with the air outlet of the second precondensation scraper condenser (12), and the top of described the second precondensation scraper condenser (12) is provided with the uniform shower nozzle of the second precondensation scraper condenser (7) more than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104439428A CN102913421A (en) | 2012-11-09 | 2012-11-09 | Vacuum set system of glycol steam injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104439428A CN102913421A (en) | 2012-11-09 | 2012-11-09 | Vacuum set system of glycol steam injection pump |
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| Publication Number | Publication Date |
|---|---|
| CN102913421A true CN102913421A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104439428A Pending CN102913421A (en) | 2012-11-09 | 2012-11-09 | Vacuum set system of glycol steam injection pump |
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| CN (1) | CN102913421A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305662A (en) * | 2013-05-31 | 2013-09-18 | 中冶南方工程技术有限公司 | Vacuum system for vacuum melting |
| CN103334969A (en) * | 2013-07-10 | 2013-10-02 | 上海赛迩福电力技术有限公司 | Condenser steam injection vacuum system |
| CN111995495A (en) * | 2020-08-17 | 2020-11-27 | 上海轻叶能源股份有限公司 | Energy-saving vacuum system for coal-to-ethylene glycol process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1363779A (en) * | 2002-02-01 | 2002-08-14 | 王宇志 | Joint refrigeration type steam-jet vacuum pump |
| CN201358966Y (en) * | 2009-02-27 | 2009-12-09 | 鞍山创新实业有限公司 | Steam-jet vacuum pump |
| CN202991414U (en) * | 2012-11-09 | 2013-06-12 | 江阴市华宏化纤有限公司 | Vacuum unit system for glycol steam-jet pump |
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2012
- 2012-11-09 CN CN2012104439428A patent/CN102913421A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363779A (en) * | 2002-02-01 | 2002-08-14 | 王宇志 | Joint refrigeration type steam-jet vacuum pump |
| CN201358966Y (en) * | 2009-02-27 | 2009-12-09 | 鞍山创新实业有限公司 | Steam-jet vacuum pump |
| CN202991414U (en) * | 2012-11-09 | 2013-06-12 | 江阴市华宏化纤有限公司 | Vacuum unit system for glycol steam-jet pump |
Non-Patent Citations (3)
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| 何佩卿等: "乙二醇蒸气喷射泵在聚酯工艺中的应用", 《石油化工技术与经济》 * |
| 李莉: "乙二醇蒸气喷射泵应用的设计要点", 《聚酯工业》 * |
| 黄家琪: "吉玛公司聚酯生产线中的真空技术", 《聚酯工业》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305662A (en) * | 2013-05-31 | 2013-09-18 | 中冶南方工程技术有限公司 | Vacuum system for vacuum melting |
| CN103334969A (en) * | 2013-07-10 | 2013-10-02 | 上海赛迩福电力技术有限公司 | Condenser steam injection vacuum system |
| CN111995495A (en) * | 2020-08-17 | 2020-11-27 | 上海轻叶能源股份有限公司 | Energy-saving vacuum system for coal-to-ethylene glycol process |
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Application publication date: 20130206 |