CN204051032U - A kind of pre-procesor of vacuum pump set - Google Patents
A kind of pre-procesor of vacuum pump set Download PDFInfo
- Publication number
- CN204051032U CN204051032U CN201420352515.3U CN201420352515U CN204051032U CN 204051032 U CN204051032 U CN 204051032U CN 201420352515 U CN201420352515 U CN 201420352515U CN 204051032 U CN204051032 U CN 204051032U
- Authority
- CN
- China
- Prior art keywords
- material collection
- pump set
- vacuum pump
- collection tank
- air inlet
- 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.)
- Active
Links
Abstract
The utility model provides a kind of pre-procesor of vacuum pump set, comprises vacuum buffer tank, material collection tank and vacuum pump set; Described vacuum buffer tank is provided with air inlet and exhaust outlet; Described material collection tank is the gas buffer tank with condenser; Described material collection tank is provided with air inlet, exhaust outlet, coolant intake and cooling water outlet mouth; Described vacuum pump set is provided with air inlet and gas outlet; The air inlet of described vacuum buffer tank connects destilling tower, and the air inlet of described material collection tank connects the gas outlet of described vacuum buffer tank; The exhaust outlet of described material collection tank connects described vacuum pump set.The utility model uses condenser carrying material cooling again secretly or tackling absorption in gas, before next still charging of intermittently operated, remain in crude product in material collection tank after this batch is purified to be released by the mode of heating, the gas that guarantee enters into vacuum pump set does not have can the material of crystallization.
Description
Technical field
The utility model relates to vacuum machine technical field, particularly a kind of pre-procesor of vacuum pump set.
Background technology
Ethylene carbonate esters product is synthesized by carbon dioxide and oxirane HTHP catalyst, and product out through the processing of denitrating catalyst simple distillation, then obtains through the rectification and purification of high vacuum.Ethylene carbonate is a kind of high boiling solvent, surfactant and organic synthesis intermediate.Being widely used in organic synthesis field, is potential green organic chemical industry's basic material.Ethylene carbonate due to boiling point high, conventional distillation operation all can not obtain highly purified product, and it has the reaction of polymerization when high temperature.So rectification and purification is all rectification under vacuum, all will use vacuum pump set, be all generally employing three grades or level Four Roots vacuum system.In the process of rectification under vacuum, the crude product material of some ethylene carbonates can be carried unavoidably secretly in the process of bleeding in vavuum pump, because the molten point under the atmospheric pressure state of ethylene carbonate is 38 degree, so just easily cause vacuum pump set stuck once charging in vacuum pump set, the seal of vacuum pump set inside also can be caused to dissolve, and this is because ethylene carbonate is a kind of strong solvent.Thus causing distillation operation to carry out, involuntary stoppage, at this moment the personnel of needing repairing come to process, the progress that impact is produced, and can cause very large injury to equipment.The problem of vacuum pump set charging is a large problem that puzzlement ethylene carbonate is purified always.
Summary of the invention
The technical problems to be solved in the utility model is the deficiency overcoming existing vacuum system, provides a kind of pre-procesor of vavuum pump, makes the ethylene carbonate material carried secretly not enter into vacuum pump set, thus ensures normally carrying out of production.
A pre-procesor for vacuum pump set, comprises vacuum buffer tank, material collection tank and vacuum pump set; Described vacuum buffer tank is provided with air inlet and exhaust outlet; Described material collection tank is the gas buffer tank with condenser; Described material collection tank is provided with air inlet, exhaust outlet, coolant intake and cooling water outlet mouth; Described vacuum pump set is provided with air inlet and gas outlet;
The air inlet of described vacuum buffer tank connects destilling tower, and the air inlet of described material collection tank connects the gas outlet of described vacuum buffer tank; The exhaust outlet of described material collection tank connects described vacuum pump set.
Preferably, the condenser in described material collection tank is shell and tube condenser.
Preferably, described material collection tank also comprises: drain and drain.
During use, vacuum pump set starts, and due to vacuum pump set, after prime reaches requirement, next stage could start, and after all starting, start to heat up to distillation or rectifying still, carried out purification operations, vavuum pump runs all the time.Due to the raising of still temperature, reach the boiling point under material decompression, ethylene carbonate gas rises to tower top, is again back in rectifying by the condenser cooling of tower or is expected in fraction or finished pot.The material that part is not condensed is pumped in vacuum buffer tank via vacuum pipeline, is collected, can not enter into vacuum pump set, protect the normal operation of vacuum pump set by material collection tank.
The utility model have employed condenser carrying material cooling again secretly or tackling absorption in gas, before next still charging of intermittently operated, remain in crude product in material collection tank after this batch is purified to be released by the mode of heating, the gas that guarantee enters into vacuum pump set does not have can the material of crystallization.This utility model mainly adds area and the mode of cooling.If make this kind of material collection tank by the pattern of filler, also can be effective, but post processing slightly bothers, can not well utilize tackled material, not use the mode of condenser good, not only can solve the problem of vacuum pump set, also can solve the problem of running material, improve yield.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the embodiment 1 of the pre-procesor of a kind of vacuum pump set that the utility model provides.
In FIG, 1 is vacuum buffer tank, 1-1 air inlet, 1-2 drain, 1-3 exhaust outlet, 1-4 drain, 1-5 pressure vacuum gauge, 2 material collection tanks, 2-1 air inlet, 2-2 drain, 2-3 exhaust outlet, 2-4 drain, 2-5 pressure vacuum gauge, 2-6 cooling water outlet mouth, 2-7 coolant intake, 3 vacuum pump set, 3-1 air inlet, 3-2 gas outlet.
Detailed description of the invention
Below in conjunction with schematic diagram and example, further illustrate the performance of this device.
Example 1: a kind of pre-procesor of vacuum pump set, comprises vacuum buffer tank 1, material collection tank 2 and vacuum pump set 3; Described vacuum buffer tank 1 is provided with air inlet 1-1, drain 1-2, exhaust outlet 1-3, drain 1-4 and pressure vacuum gauge 1-5.Wherein, air inlet 1-1 connects the system of the rectification and purification of front end.Described material collection tank 2 is the gas buffer tank with condenser.Described material collection tank 2 is provided with air inlet 2-1, drain 2-2, exhaust outlet 2-3, drain 2-4, pressure vacuum gauge 2-5, coolant intake 2-7 and cooling water outlet mouth 2-6.Described vacuum pump set is provided with air inlet 3-1 and gas outlet 3-2.The air inlet of described vacuum buffer tank connects destilling tower, and the air inlet of described material collection tank connects the gas outlet of described vacuum buffer tank; The exhaust outlet of described material collection tank connects described vacuum pump set.
Condenser in described material collection tank is shell and tube condenser.
Vacuum pump set starts, and order is opened each air inlet and to be given vent to anger valve, closes drain and drain, vacuumizes the vacuum of surge tank and material collection tank, drive the system of the rectification and purification of front end simultaneously, make the vacuum of rectifying column in rectifying and purifying system reach poised state.Rectifying intensification infinite reflux, because the temperature of condensed water in the condenser of the rectification and purification tower top of ethylene carbonate can not lower than 39 degree, (freezing point of ethylene carbonate is 37 degree), if crystallization is not easy process in overhead condenser, in the process of bleeding, a small amount of liquid entrainment is had to pass through condenser in gas, enter into vacuum buffer tank 1, enter into material collection tank 2 through vacuum buffer tank again, the condenser in material collection tank the condenses be entrained in gas in material collection tank.Ethylene carbonate interval is purified, and the middle intermittent time can pass into hot water with tubular heat exchanger, the solid carbonic acid vinyl acetate of crystallization in material collection tank is melted again and discharges from drain, then carry out operation next time.
Example 2, be with the difference of example 1, cooling liquid becomes chilled brine, makes to enter into thing and is all solidified crystallization compared with the material of collector and gets off.
Above-described is only preferred embodiment of the present utility model.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. a pre-procesor for vacuum pump set, is characterized in that, comprises vacuum buffer tank, material collection tank and vacuum pump set; Described vacuum buffer tank is provided with air inlet and exhaust outlet; Described material collection tank is the gas buffer tank with condenser; Described material collection tank is provided with air inlet, exhaust outlet, coolant intake and cooling water outlet mouth; Described vacuum pump set is provided with air inlet and gas outlet;
The air inlet of described vacuum buffer tank connects destilling tower, and the air inlet of described material collection tank connects the gas outlet of described vacuum buffer tank; The exhaust outlet of described material collection tank connects described vacuum pump set.
2. device according to claim 1, is characterized in that, the condenser in described material collection tank is shell and tube condenser.
3. device according to claim 1, is characterized in that, described material collection tank also comprises: drain and drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420352515.3U CN204051032U (en) | 2014-06-30 | 2014-06-30 | A kind of pre-procesor of vacuum pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420352515.3U CN204051032U (en) | 2014-06-30 | 2014-06-30 | A kind of pre-procesor of vacuum pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204051032U true CN204051032U (en) | 2014-12-31 |
Family
ID=52192629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420352515.3U Active CN204051032U (en) | 2014-06-30 | 2014-06-30 | A kind of pre-procesor of vacuum pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204051032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233519A (en) * | 2015-11-13 | 2016-01-13 | 如皋市金陵化工有限公司 | Gas-state TTA vacuumizing system |
| US20210396724A1 (en) * | 2020-06-23 | 2021-12-23 | Institute Of Biological Resources, Jiangxi Academy Of Sciences | Apparatus and method for producing policosanol having specific chromatographic fingerprint |
-
2014
- 2014-06-30 CN CN201420352515.3U patent/CN204051032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233519A (en) * | 2015-11-13 | 2016-01-13 | 如皋市金陵化工有限公司 | Gas-state TTA vacuumizing system |
| US20210396724A1 (en) * | 2020-06-23 | 2021-12-23 | Institute Of Biological Resources, Jiangxi Academy Of Sciences | Apparatus and method for producing policosanol having specific chromatographic fingerprint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105037094A (en) | Energy coupling distillation method for preparing ethyl alcohol by means of acetic acid ester hydrogenation | |
| CN204051032U (en) | A kind of pre-procesor of vacuum pump set | |
| CN106268195A (en) | A kind of ammonia absorption tower device of the ammonia in high efficiente callback waste gas | |
| CN205549656U (en) | Gaseous state solvent condensation recovery device | |
| WO2013067918A1 (en) | Method and device for recovering ethylene during process for producing vinyl acetate | |
| CN106673012A (en) | Process and device for producing strong ammonia water through negative pressure operation | |
| CN102895861B (en) | Method and device for recovering phosphorus trichloride tail gas and byproduct phosphorous acid | |
| CN106744956A (en) | A kind of high-pressure washing methane purification carbon dioxide in process recovery process | |
| CN105061133B (en) | The recovery method of acetylene and retracting device during a kind of vinyl acetate production | |
| CN205856350U (en) | Ethanol automatic recovery system | |
| CN205300299U (en) | Device of noncondensable gas in vertical condenser of desorption | |
| CN204952587U (en) | Tail gas purifying device | |
| CN205340199U (en) | Propolis draws solvent secondary cooling recovery unit | |
| CN204815749U (en) | Solvent recovery unit in tail gas | |
| CN112694404B (en) | Method and device for purifying vinyl acetate in EVOH production process | |
| CN210495821U (en) | Solvent recovery system in BP-3 drying section vacuum tail gas | |
| CN103332652A (en) | Bromine production device | |
| CN201678617U (en) | Vacuum extractor for use in production of brominated epoxy resin | |
| CN203128193U (en) | Purifying and recovering equipment system of sulfur tetrafluoride | |
| CN204752561U (en) | Recovery unit of acetylene in vinyl acetate production process | |
| CN104974114B (en) | A kind of device and method for producing refined ethylene oxide | |
| CN206499893U (en) | A kind of external circulation heating formula classification alcohol concentration and recovery device with rectifying column | |
| CN110343044A (en) | Synthesizing vinyl acetate ester reaction solution separating technology | |
| CN204325196U (en) | A kind of acetic acid aceticanhydride underpressure distillation tripping device | |
| CN204543612U (en) | A kind of methanol fractionation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |