CN2585995Y - Aerated water jetting vacuum extractor for tech of urea prodn. - Google Patents
Aerated water jetting vacuum extractor for tech of urea prodn. Download PDFInfo
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- CN2585995Y CN2585995Y CN 02293278 CN02293278U CN2585995Y CN 2585995 Y CN2585995 Y CN 2585995Y CN 02293278 CN02293278 CN 02293278 CN 02293278 U CN02293278 U CN 02293278U CN 2585995 Y CN2585995 Y CN 2585995Y
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Abstract
The utility model discloses a gas water jetting vacuum extractor for technology of urea production. The utility model is composed of a water tank, a first section of water jetting device, a second section of water jetting device, a middle condenser, and a second section of steam jetting device, wherein, a water outlet of the water tank is respectively connected with the first section of water jetting device and the second section of water jetting device through a centrifugal pump. A gas suction mouth of the first section of water jetting device is connected with an evaporative gas outlet of a first section of surface condenser. The second section of water jetting device is connected with an evaporative gas outlet of the middle condenser, wherein, a gas suction mouth of which is connected with an evaporative gas outlet of the second section of steam jetting device. A gas suction mouth of the second section of steam jetting device is connected with an evaporative gas outlet of a second section of surface condenser. A mixed gas-water outlet of the first section of water jetting device and the second section of water jetting device is communicated with the water tank. The utility model can satisfy the requirement of an evaporator which requires a vacuum degree in the technological process of urea production, can reduce running cost and energy consumption, can recover gas which is discharged, can avoid the emptying noise of mixed gas, and can reduce air pollution.
Description
Technical field the utility model relates to a kind of device, and the carbonated drink that specifically relates to vacuum vaporation system in the urea production process is sprayed vacuum pumping device.
Urea liquid evaporation adopts vacuum evaporation can reduce evaporation operation temperature and urea liquid in the waiting time of bringing-up section in the background technique urea production, and control two urine that contract generate.Required degree of vacuum is that one section evaporation suction pressure is 30kpa (cutting off), and the dual circulation suction pressure is that the vacuum system of 6.66kpa (cutting off) could be taken the moisture that is evaporated away, can obtain 99.7% fusing urea.Adopt the steam jet vacuum device in the vacuum vaporation system technological process of urea liquid, basic technology is configured to compositions such as one section steam jet ejector, two section first steam jet ejector, two section second steam jet ejector, intercondenser, booster a few days ago.Keep required degree of vacuum of operating process and corresponding gettering quantity respectively, working medium adopts steam.The working steam steam jet ejector nozzle of flowing through, pressure reduces, and velocity head increases, and forms vacuum, thereby obtains the required pressure of each section evaporation process.But working steam pressure and purity are wayward in operating process, simultaneously cause the degree of vacuum instability because of pressure surge and water entrained by steam, influence ordinary production and quality of product, and steam jet ejector aspirated one, not condensing and power steam in the dual circulation vapour mix, directly enter atmosphere from exhaust pipe, cause serious pollution of atmosphere and emptying noise.
Summary of the invention the utility model provides a kind of carbonated drink with gas, water spraying cycle to spray vacuum pumping device, simple in structure, can satisfy the required degree of vacuum requirement of vaporizer in the urea production process flow process, reduce operating cost and energy consumption greatly, and to the discharging gas reclaim, avoid mixed gas emptying noise, reduced atmospheric pollution.
The technical solution of the utility model is: a kind of carbonated drink that is used for urea production process is sprayed vacuum pumping device, by water tank, one section water ejector, two sections water ejectors, intercondenser, two sections steam jet ejectors are formed, and the water outlet of water tank is connected with one section water ejector, two sections water ejectors respectively by centrifugal pump; The gas suction port of one section water ejector is connected with the boil-off gas outlet of a section surface condenser; Two sections water ejectors are connected with the boil-off gas outlet of intercondenser, and the intakeport of intercondenser is connected with the boil-off gas outlet of two sections steam jet ejectors; The gas of two sections steam jet ejectors sucks with the boil-off gas outlet of two section surface condensers and is connected; Mixed gas-the water out of one section water ejector, two sections water ejectors is communicated with water tank.
Be provided with dividing plate in the described water tank.
Described water ejector is a kind of in single-stage water ejector, two-stage water ejector, the multistage water ejector.
Described intercondenser is a kind of in surface condenser, the direct-type condenser.
Carbonated drink of the present utility model is sprayed the vacuum picking device, compared with the prior art, have following characteristics: be power with circulating water, circulating water is forced to carry under one's arms by high-speed jet through water ejector, causes the suction chamber internal pressure to reduce and the formation vacuum, reach one section, the required degree of vacuum of dual circulation technological process, and corresponding gettering quantity, make pressure stability in the vaporizer, reach and reduce the evaporation operation temperature, control two urine that contract and generate, improve the urea product quality.And non-condensible gases such as atomizing of liquids and absorbed ammonia, enter water tank by air water mixing output and carry out periodic duty, continuous condensation along with ammonia gas, ammonia content in the water tank rises, and the drain valve that can open water tank is sent to desorb in the carbon amine liquid bath, has reclaimed the content of ammonia, purified environment, reduced energy consumption simultaneously, avoided steam to be caused mixed gas emptying noise, the pollution of atmosphere of avoiding mixed gas directly to enter atmosphere simultaneously being caused by power.
Description of drawings Fig. 1 is the utility model structural representation.
Mark among the figure: one section water ejector of 1-water tank 2-centrifugal pump 3-dividing plate 4-
Two sections water ejector 6-of 5-, one section surface condenser 7-intercondenser
Two sections steam jet ejector 9-of 8-, two section surface condensers
One section vapor seperator 11-of 10-dual circulation separator
Embodiment is as figure, and the carbonated drink in the urea production process is sprayed vacuum pumping device, can be installed in urea plant main building three floor platform to five building evaporator rooms.Water tank 1 is installed in three layers of platform, water tank is furnished with relief opening, circulating water replenishes inlet, drain opening, dividing plate is housed in the water tank, dividing plate is 2/3 height of water line, the effect of dividing plate is to prevent that gas from entering water pump, water line is 3/4 of a water tank height, the water outlet of water tank 1 is connected with centrifugal pump 2 suction ports, by corresponding valve, be connected to five building evaporator rooms behind the pressure gauge, reducing divides two-way, and one the tunnel connects one section water ejector 4, another road connects the inlet of two sections water ejectors 5, and the gas suction port of one section water ejector 4 is connected with the boil-off gas outlet of a section surface condenser 6, suction makes one section vapor seperator 10 reach corresponding degree of vacuum from the gas of one section vapor seperator 10.
Two sections water ejectors 5 are connected with the boil-off gas outlet of intercondenser 7, and the intakeport of intercondenser 7 is connected with the boil-off gas outlet of two sections steam jet ejectors 8; The gas suction port of two sections steam jet ejectors 8 is connected with the boil-off gas outlet of two section surface condensers 9, sucks the gas from dual circulation separator 11, makes dual circulation separator 11 reach corresponding degree of vacuum.
Mixed gas-the water out of one section water ejector 4, two sections water ejectors 5 is communicated with water tank 1, the non-condensible gas of atomizing of liquids and suction is returned to water tank 1 condensation, when ammonia content reaches certain value in the water tank 1, can open drain valve and send desorb in the carbon amine liquid bath circulating water in the water tank 1.
Claims (4)
1, a kind of carbonated drink that is used for urea production process is sprayed vacuum pumping device, by water tank (1), one section water ejector (4), two sections water ejectors (5), intercondenser (7), two sections steam jet ejectors (8) are formed, and it is characterized in that: the water outlet of water tank (1) is connected with one section water ejector (4), two sections water ejectors (5) respectively by centrifugal pump (2); The gas suction port of one section water ejector (4) is connected with the boil-off gas outlet of a section surface condenser (6); Two sections water ejectors (5) are connected with the boil-off gas outlet of intercondenser (7), and the intakeport of intercondenser (7) is connected with the boil-off gas outlet of two sections steam jet ejectors (8); The gas suction port of two sections steam jet ejectors (8) is connected with the boil-off gas outlet of two section surface condensers (9); Mixed gas-the water out of one section water ejector (4), two sections water ejectors (5) is communicated with water tank (1).
2, spray vacuum pumping device according to claims 1 described carbonated drink, it is characterized in that: be provided with dividing plate (3) in the described water tank (1).
3, spray vacuum pumping device according to the described carbonated drink of claims 1, it is characterized in that: described water ejector (4), (5) are a kind of in single-stage water ejector, two-stage water ejector, the multistage water ejector.
4, spray vacuum pumping device according to the described carbonated drink of claims 1, it is characterized in that: described intercondenser (7) is a kind of in surface condenser, the direct-type condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293278 CN2585995Y (en) | 2002-12-17 | 2002-12-17 | Aerated water jetting vacuum extractor for tech of urea prodn. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293278 CN2585995Y (en) | 2002-12-17 | 2002-12-17 | Aerated water jetting vacuum extractor for tech of urea prodn. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2585995Y true CN2585995Y (en) | 2003-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02293278 Expired - Fee Related CN2585995Y (en) | 2002-12-17 | 2002-12-17 | Aerated water jetting vacuum extractor for tech of urea prodn. |
Country Status (1)
| Country | Link |
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| CN (1) | CN2585995Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389639A (en) * | 2011-11-07 | 2012-03-28 | 毕节金河化工有限公司 | Urea solution evaporation and concentration equipment |
| CN102606545A (en) * | 2012-02-14 | 2012-07-25 | 浠水县福瑞德化工有限责任公司 | Water vacuumizing method and water vacuumizing system in urea production |
| CN103111158A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Recovery method and recovery device of urea melting tank analytic gas |
| CN107823908A (en) * | 2017-11-30 | 2018-03-23 | 山东凯盛新材料股份有限公司 | Acyl chlorides vacuum rectifying apparatus and method |
| CN112742047A (en) * | 2020-12-31 | 2021-05-04 | 安徽六国化工股份有限公司 | Method and device for pumping negative pressure of urea production evaporation system |
-
2002
- 2002-12-17 CN CN 02293278 patent/CN2585995Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389639A (en) * | 2011-11-07 | 2012-03-28 | 毕节金河化工有限公司 | Urea solution evaporation and concentration equipment |
| CN102606545A (en) * | 2012-02-14 | 2012-07-25 | 浠水县福瑞德化工有限责任公司 | Water vacuumizing method and water vacuumizing system in urea production |
| CN103111158A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Recovery method and recovery device of urea melting tank analytic gas |
| CN107823908A (en) * | 2017-11-30 | 2018-03-23 | 山东凯盛新材料股份有限公司 | Acyl chlorides vacuum rectifying apparatus and method |
| CN112742047A (en) * | 2020-12-31 | 2021-05-04 | 安徽六国化工股份有限公司 | Method and device for pumping negative pressure of urea production evaporation system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |