CN210317757U - Vacuum unit for preparing propenyl diethyl ether - Google Patents
Vacuum unit for preparing propenyl diethyl ether Download PDFInfo
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- CN210317757U CN210317757U CN201921046531.9U CN201921046531U CN210317757U CN 210317757 U CN210317757 U CN 210317757U CN 201921046531 U CN201921046531 U CN 201921046531U CN 210317757 U CN210317757 U CN 210317757U
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Abstract
The utility model discloses a vacuum unit for propenyl ether preparation, which comprises a frame, the frame is fixedly provided with a Roots vacuum pump, a screw vacuum secondary pump and a screw vacuum primary pump through bolts, and the air inlet of the Roots vacuum pump is communicated with the air outlet of the screw vacuum secondary pump through an air pipe, and the air inlet of the screw vacuum secondary pump is communicated with the air outlet of the air pipe screw vacuum primary pump, a waste gas treatment box and an extraction pump are fixedly arranged on the frame through bolts, and the air outlet of the waste gas treatment box is communicated with the air inlet of the screw vacuum primary pump through an air pipe, and the air inlet of the waste gas treatment box is externally connected with propenyl ether preparation equipment through an air pipe, the Roots vacuum pump, the screw vacuum secondary pump and the screw vacuum primary pump are connected in series to form a vacuum unit for use, the defect that the screw vacuum pump is difficult to reach, the whole vacuumizing effect is obvious.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a vacuum unit for preparing propenyl ether.
Background
At present, in the production and preparation processes of a plurality of products in the chemical field, vacuum environments are often needed, such as vacuum concentration, vacuum filtration and the like, and especially the process of preparing propenyl ether has high requirements on the vacuum environment, so that the selection of a vacuum pump with high efficiency is particularly important.
Roots vacuum pump is one of the primary installations of present vacuum pumping, it is fast to have the start, the low power consumption and the low pressure down efficient characteristics, can reach the vacuum of relative height, and screw vacuum pump can adapt to the high condition of vapor and dust concentration, it is effectual to pump vacuum, but under the condition high to the vacuum requirement, only use roots vacuum pump or screw vacuum pump all to be difficult to reach anticipated effect, and can produce a large amount of heats at the high-speed operation in-process of vacuum pump, influence the life of vacuum pump, simultaneously when preparing propenyl ether, have gas and accessory substance that do not react completely and discharge along with gas extraction, cause harm to vacuum pump and environment, for this the utility model provides a vacuum unit for propenyl ether preparation is used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum unit for propenyl ether preparation to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a vacuum unit for preparing propenyl diethyl ether comprises a rack, wherein a Roots vacuum pump, a screw vacuum secondary pump and a screw vacuum primary pump are fixedly installed on the rack through bolts, an air inlet of the Roots vacuum pump is communicated with an air outlet of the screw vacuum secondary pump through an air pipe, an air inlet of the screw vacuum secondary pump is communicated with an air outlet of the air pipe and the screw vacuum primary pump through an air pipe, a waste gas treatment box and a liquid pump are fixedly installed on the rack through bolts, an air outlet of the waste gas treatment box is communicated with an air inlet of the screw vacuum primary pump through an air pipe, an air inlet of the waste gas treatment box is externally connected with propenyl diethyl ether preparation equipment through an air pipe, waste gas treatment liquid is filled in the waste gas treatment box, a liquid outlet is arranged on the waste gas treatment box, the liquid outlet is communicated with the, the liquid pump is externally connected with a waste liquid centralized treatment device, a control panel is installed on the rack, and the Roots vacuum pump, the screw vacuum secondary pump, the screw vacuum primary pump, the liquid pump and the electromagnetic valve are all connected with the control panel.
Preferably, the loading shell of the roots vacuum pump, the screw vacuum secondary pump and the screw vacuum primary pump is of a double-layer structure, a circulating liquid groove is fixedly mounted in the shell of each of the roots vacuum pump, the screw vacuum secondary pump and the screw vacuum primary pump, the circulating liquid grooves are communicated through a circulating liquid pipe, a circulating liquid inlet is formed in the circulating liquid groove in the shell of the screw vacuum primary pump, and a circulating liquid outlet is formed in the circulating liquid groove in the shell of the roots vacuum pump.
Preferably, the air pipe is connected with the roots vacuum pump, the screw vacuum secondary pump and the screw vacuum primary pump through flanges.
Preferably, the exhaust-gas treatment box is internally and fixedly provided with a limit sensor, the limit sensor is connected with the control panel, and the lower end of the air pipe communicated with the air inlet of the exhaust-gas treatment box is immersed in the exhaust-gas treatment liquid.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the Roots vacuum pump, the screw vacuum secondary pump and the screw vacuum primary pump are connected in series to form a vacuum unit for use, the two-stage screw vacuum pump is used for pre-pumping, so that the system reaches a low vacuum state, and then the Roots vacuum pump is used for main pumping, so that the system reaches high vacuum, the defect that the screw vacuum pump cannot reach the use requirement easily is overcome, the advantage that the Roots vacuum pump can work quickly and has high pumping speed is reserved, and the overall pumping effect is obvious;
2. the waste gas treatment case that utilizes to set up can carry out the processing of waste gas, lets in waste gas treatment liquid earlier with the gas of extraction, in not directly getting into the vacuum pump, can protect the vacuum pump, increase of service life utilizes the drawing liquid pump can conveniently carry out the change of waste gas treatment liquid simultaneously.
3. An integrated circulating cooling system is arranged in the shell of each stage of vacuum pump, and cooling liquid circulates in the system, so that the effect of cooling is achieved, each stage of vacuum pump is protected, and the service life is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the pipeline structure of the present invention;
fig. 3 is a side view of the present invention;
fig. 4 is the inside schematic view of the waste gas treatment box of the present invention.
In the figure: the device comprises a frame 1, a Roots vacuum pump 2, a screw vacuum secondary pump 3, a screw vacuum primary pump 4, an air pipe 5, a waste gas treatment box 6, a liquid pump 7, a liquid outlet 8, an electromagnetic valve 9, a circulating liquid inlet 10, a circulating liquid outlet 11, a circulating liquid pipe 12, a circulating liquid groove 13, a control panel 14, waste gas treatment liquid 15, a limit sensor 16 and a liquid inlet 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a vacuum unit for preparing propenyl diethyl ether comprises a rack 1, wherein a Roots vacuum pump 2, a screw vacuum secondary pump 3 and a screw vacuum primary pump 4 are fixedly installed on the rack 1 through bolts, an air inlet of the Roots vacuum pump 2 is communicated with an air outlet of the screw vacuum secondary pump 3 through an air pipe 5, an air inlet of the screw vacuum secondary pump 3 is communicated with an air outlet of the screw vacuum primary pump 4 through an air pipe 5, a waste gas treatment box 6 and an extraction pump 7 are fixedly installed on the rack 1 through bolts, an air outlet of the waste gas treatment box 6 is communicated with an air inlet of the screw vacuum primary pump 4 through the air pipe 5, an air inlet of the waste gas treatment box 6 is externally connected with propenyl diethyl ether preparation equipment through the air pipe 5, waste gas treatment liquid 15 is filled in the waste gas treatment box 6, a liquid outlet 8 is arranged on the waste gas treatment box 6, the liquid outlet 8 is communicated with, and the waste gas treatment box 6 is provided with a liquid inlet 17, the liquid pump 7 is externally connected with waste liquid centralized treatment equipment, the rack 1 is provided with a control panel 14, and the roots vacuum pump 2, the screw vacuum secondary pump 3, the screw vacuum primary pump 4, the liquid pump 7 and the electromagnetic valve 9 are all connected with the control panel 14.
The loading shells of the Roots vacuum pump 2, the screw vacuum secondary pump 3 and the screw vacuum primary pump 4 are of a double-layer structure, a circulating liquid tank 13 is fixedly installed in the shells of the Roots vacuum pump 2, the screw vacuum secondary pump 3 and the screw vacuum primary pump 4, the circulating liquid tank 13 is communicated through a circulating liquid pipe 12, a circulating liquid inlet 10 is formed in the circulating liquid tank 13 in the shell of the screw vacuum primary pump 4, a circulating liquid outlet 11 is formed in the circulating liquid tank 13 in the shell of the Roots vacuum pump 2, cooling liquid enters the equipment through the circulating liquid inlet, and is discharged through the circulating liquid outlet after circulating in the screw vacuum primary pump, the screw vacuum secondary pump and the Roots vacuum pump, so that heat loss is accelerated, damage caused by overhigh temperature of a vacuum pump group is avoided, and the practical service life of the equipment is prolonged;
the gas pipe 5 is connected with the roots vacuum pump 2, the screw vacuum secondary pump 3 and the screw vacuum primary pump 4 through flanges;
a limit sensor 16 is fixedly arranged in the waste gas treatment box 6, the limit sensor is connected with a control panel 14, the lower end of a gas pipe 5 communicated with a gas inlet of the waste gas treatment box 6 is immersed in waste gas treatment liquid 15, the limit sensor can avoid harm caused by excessive added waste gas treatment liquid, and the gas pipe is immersed in the waste gas treatment liquid to ensure that waste gas is fully reacted, absorbed and then immersed in a pump set;
the working principle is as follows: when in use, the vacuum pump is connected with propenyl ether preparation equipment through an air pipe, and after the vacuum pump is started by using a control panel, the vacuumizing action is carried out, the gas can enter the waste gas treatment box from the gas pipe and is treated by the waste gas treatment liquid, then the gas enters the screw vacuum primary pump, the screw vacuum secondary pump and the Roots vacuum pump in sequence through the gas pipe and is discharged, the vacuum environment of the production equipment is kept, during the period, the cooling liquid enters the equipment through the circulating liquid inlet and is discharged through the circulating liquid outlet after circulating in the screw vacuum primary pump, the screw vacuum secondary pump and the Roots vacuum pump, so that the heat loss is accelerated, the damage caused by overhigh temperature of the vacuum pump group is avoided, the practical service life of the equipment is prolonged, after a period of practical time, can take waste treatment liquid out through the operation of drawing the liquid pump to supply new treatment liquid, the spacing sensor of installation then can avoid the too much harm that causes of waste gas treatment liquid that adds.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A vacuum unit for propenyl ether preparation, includes frame (1), its characterized in that: the machine frame (1) is fixedly provided with a Roots vacuum pump (2), a screw vacuum secondary pump (3) and a screw vacuum primary pump (4) through bolts, an air inlet of the Roots vacuum pump (2) is communicated with an air outlet of the screw vacuum secondary pump (3) through an air pipe (5), an air inlet of the screw vacuum secondary pump (3) is communicated with an air outlet of the screw vacuum primary pump (4) through the air pipe (5), the machine frame (1) is fixedly provided with a waste gas treatment box (6) and a liquid pump (7) through bolts, an air outlet of the waste gas treatment box (6) is communicated with an air inlet of the screw vacuum primary pump (4) through the air pipe (5), an air inlet of the waste gas treatment box (6) is externally connected with propenyl ether preparation equipment through the air pipe (5), a waste gas treatment liquid (15) is arranged in the waste gas treatment box (6), and a liquid outlet (8, liquid outlet (8) and drawing liquid pump (7) UNICOM, and fixed mounting has solenoid valve (9) on liquid outlet (8), and is provided with inlet (17) on exhaust-gas treatment case (6), drawing liquid pump (7) are external to waste liquid centralized processing equipment, install control panel (14) on frame (1), and roots vacuum pump (2), screw rod vacuum secondary pump (3), screw rod vacuum primary pump (4), drawing liquid pump (7) and solenoid valve (9) all are connected with control panel (14).
2. The vacuum unit for propenyl ether preparation according to claim 1, characterized in that: the loading shell of the Roots vacuum pump (2), the screw vacuum secondary pump (3) and the screw vacuum primary pump (4) is of a double-layer structure, a circulating liquid groove (13) is fixedly installed in the shell of the Roots vacuum pump (2), the screw vacuum secondary pump (3) and the screw vacuum primary pump (4), the circulating liquid groove (13) is communicated through a circulating liquid pipe (12), a circulating liquid inlet (10) is formed in the circulating liquid groove (13) in the shell of the screw vacuum primary pump (4), and a circulating liquid outlet (11) is formed in the circulating liquid groove (13) in the shell of the Roots vacuum pump (2).
3. The vacuum unit for propenyl ether preparation according to claim 1, characterized in that: and the air pipe (5) is connected with the roots vacuum pump (2), the screw vacuum secondary pump (3) and the screw vacuum primary pump (4) through flanges.
4. The vacuum unit for propenyl ether preparation according to claim 1, characterized in that: fixed mounting has spacing sensor (16) in exhaust-gas treatment case (6), and spacing sensor is connected with control panel (14), and immerses exhaust-gas treatment liquid (15) with trachea (5) lower extreme of exhaust-gas treatment case (6) air inlet UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921046531.9U CN210317757U (en) | 2019-07-06 | 2019-07-06 | Vacuum unit for preparing propenyl diethyl ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921046531.9U CN210317757U (en) | 2019-07-06 | 2019-07-06 | Vacuum unit for preparing propenyl diethyl ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210317757U true CN210317757U (en) | 2020-04-14 |
Family
ID=70149188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921046531.9U Active CN210317757U (en) | 2019-07-06 | 2019-07-06 | Vacuum unit for preparing propenyl diethyl ether |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210317757U (en) |
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2019
- 2019-07-06 CN CN201921046531.9U patent/CN210317757U/en active Active
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