CN217489749U - Devolatilization vacuum system - Google Patents
Devolatilization vacuum system Download PDFInfo
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- CN217489749U CN217489749U CN202221279319.9U CN202221279319U CN217489749U CN 217489749 U CN217489749 U CN 217489749U CN 202221279319 U CN202221279319 U CN 202221279319U CN 217489749 U CN217489749 U CN 217489749U
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Abstract
The utility model relates to a take off and wave vacuum system relates to polymer and takes off and wave production facility field. The system comprises: the first devolatilization vacuum equipment comprises a first devolatilization device and a first vacuum device, wherein the first devolatilization device comprises a first condensing device, a first vacuum fan, a first vacuum pump and a first sealing liquid circulating cooling device which are sequentially communicated; and the second devolatilization vacuum equipment comprises a second devolatilization device and a second vacuum device, wherein the second devolatilization device comprises a second condensing device, a second vacuum fan, a second vacuum pump and a second sealing liquid circulating cooling device. This system is through establishing ties vacuum fan and vacuum pump to guarantee the full vacuum effect of devolatilizing the ware, will take off the vacuum system adjustment originally simultaneously and be 2 devolatilization vacuum apparatus of establishing ties, take off through carrying on twice and volatilize and reduce residual monomer volume.
Description
Technical Field
The utility model relates to a polymer takes off and waves production facility field, especially relates to a take off and wave vacuum system.
Background
The process of removing volatile components from the bulk of the polymer is called devolatilization, and a devolatilizer is an apparatus for removing small molecular substances from the polymer. After the polymer enters the devolatilization device, the characteristics of different boiling points of different media of the polymer are utilized, and the surface area of the polymer is increased through the secondary distribution of the devolatilization distribution pipe, so that different components of the polymer are gasified and separated. The vacuum system is adopted for devolatilization, so that the residual monomer content in the devolatilized and separated product is lower, and the product quality is better.
Currently available devolatilization vacuum systems, as shown in fig. 1, include a devolatilizer, a condenser for condensing volatiles, and a vacuum blower for providing a vacuum environment. The vacuum degree of the devolatilization vacuum system is poor, the full vacuum effect cannot be guaranteed, the residual monomer content is possibly high, the quality of produced products is unstable, and the requirement of high-quality products cannot be met.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a take off and wave vacuum system, this system is through establishing ties vacuum fan and vacuum pump to guarantee to take off the full vacuum effect of waving the ware, will take off originally simultaneously and wave vacuum system adjustment for 2 and take off and wave vacuum apparatus of establishing ties, when the production load is high, first take off and wave vacuum apparatus can not be with whole volatile condensation, consequently, adopt the vacuum apparatus of taking off of 2 series connections, can carry out twice and take off and wave, thereby reduce the product raw materials and remain the monomer.
In order to achieve the above object, the utility model provides a devolatilization vacuum system, include:
the first devolatilization vacuum equipment comprises a first devolatilization device and a first vacuum device, wherein the first vacuum device comprises a first condensing device, a first vacuum fan, a first vacuum pump and a first sealing liquid circulating cooling device which are sequentially communicated; the first devolatilizer is provided with a first feeding hole, a first discharging hole and a first vacuum port, the first feeding hole is used for feeding materials, and the first vacuum port is communicated with the first condensing device; and
the second devolatilization vacuum equipment comprises a second devolatilization device and a second vacuum device, wherein the second vacuum device comprises a second condensing device, a second vacuum fan, a second vacuum pump and a second sealing liquid circulating cooling device which are sequentially communicated; the second devolatilizer is provided with a second feed inlet, a second discharge hole and a second vacuum hole, the second feed inlet is communicated with the first discharge hole, the second vacuum hole is communicated with the second condensing device, and the second discharge hole is used for leading out materials.
Above-mentioned design is through establishing ties vacuum fan and vacuum pump to guarantee the full vacuum effect of devolatilizing the ware, take off the ware adjustment for 2 devolatilizing ware of establishing ties with original one simultaneously, it is high when the production load, first devolatilizing vacuum apparatus can not be with the condensation of whole volatiles, can carry out the second and take off the volatile, thereby reduce product raw materials and remain the monomer.
In one embodiment, the first sealing liquid circulating cooling device includes a first sealing liquid cooler and a first sealing liquid tank, the first vacuum pump is provided with a first liquid outlet and a first liquid inlet, the first liquid outlet is communicated with the first sealing liquid tank, the first sealing liquid tank is communicated with the first sealing liquid cooler, and the first sealing liquid cooler is communicated with the first liquid inlet.
Adopt above-mentioned design, can recycle sealing liquid, and guarantee the low temperature of sealing liquid, the lower the temperature of sealing liquid is, the more big vacuum that enables the vacuum pump formation, and then guarantee the full vacuum effect of devolatilization ware.
In one embodiment, the first sealing liquid cooler is provided with a first cold water inlet for leading in cold water and a first cold water outlet for leading out cold water.
In one embodiment, the first sealing liquid tank is provided with a first liquid supplementing port and a first exhaust port, the first liquid supplementing port is used for introducing sealing liquid, and the first exhaust port is used for leading out exhaust gas.
By adopting the design, the sealing liquid can be supplemented in time.
In one embodiment, the second sealing liquid circulating cooling device includes a second sealing liquid cooler and a second sealing liquid tank, the second vacuum pump is provided with a second liquid outlet and a second liquid inlet, the second liquid outlet is communicated with the second sealing liquid tank, the second sealing liquid tank is communicated with the second sealing liquid cooler, and the second sealing liquid cooler is communicated with the second liquid inlet.
In one embodiment, the second seal liquid cooler is provided with a second cold water inlet for introducing cold water and a second cold water outlet for discharging cold water.
In one embodiment, the second sealing liquid tank is provided with a second liquid supplementing port and a second exhaust port, the second liquid supplementing port is used for introducing sealing liquid, and the second exhaust port is used for leading out exhaust gas.
In one embodiment, the first condensing device comprises at least 2 condensers which are communicated in sequence.
Adopt above-mentioned design, can be energy-conserving, one of them condenser adopts the cooling water, condenses most volatile to 30 ℃, and another condenser adopts the refrigerated water, realizes the full condensation, if all use the refrigerated water, can cause high energy consumption.
In one embodiment, the second condensing means comprises 1 condenser.
In one embodiment, the first vacuum pump and the second vacuum pump are liquid ring vacuum pumps.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a devolatilization vacuum system, this system is through establishing ties vacuum fan and vacuum pump to guarantee to devolatilize the full vacuum effect of ware, will devolatilize the vacuum system adjustment originally simultaneously and be 2 devolatilization vacuum apparatus of establishing ties, present production load is high, and first devolatilization vacuum apparatus can not be with whole volatile condensation, consequently, adopts the devolatilization vacuum apparatus of 2 series connections, can carry out twice devolatilization, thereby reduces the product raw materials and remains the monomer.
Drawings
FIG. 1 is a prior art devolatilization vacuum system;
FIG. 2 is the devolatilization vacuum system of example 1;
wherein, 1 is a first devolatilizer, 211 is a first condenser, 212 is a second condenser, 22 is a first vacuum fan, 23 is a first vacuum pump, 241 is a first sealant liquid cooler, 242 is a first sealant liquid tank, 3 is a second devolatilizer, 41 is a second condensing unit, 42 is a second vacuum fan, 43 is a second vacuum pump, 441 is a second sealant liquid cooler, 442 is a second sealant liquid tank, 5 is a devolatilizer, 6 is a condenser, and 7 is a vacuum fan.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The materials and parts used in this example are all commercially available sources unless otherwise specified; unless otherwise specified, all the experimental methods are routine in the art.
Example 1
A devolatilization vacuum system.
1. The system is shown in fig. 2 and comprises: a first devolatilization vacuum apparatus and a second devolatilization vacuum apparatus.
The first devolatilization vacuum equipment comprises a first devolatilization device 1 and a first vacuum device, wherein the first devolatilization device 1 is provided with a first feeding hole, a first discharging hole and a first vacuum hole, and the first feeding hole is used for feeding;
the first vacuum device comprises a first condensing device, a first vacuum fan 22, a first vacuum pump 23 and a first sealing liquid circulating cooling device which are sequentially communicated, the first condensing device is communicated with the first vacuum port, and the first vacuum pump 23 is provided with a first liquid outlet and a first liquid inlet;
the first sealing liquid circulating cooling device comprises a first sealing liquid cooler 241 and a first sealing liquid tank 242, wherein the first sealing liquid cooler 241 is provided with a first cold water inlet and a first cold water outlet, the first cold water inlet is used for leading in cold water, and the first cold water outlet is used for leading out cold water; the first sealing liquid tank 242 is communicated with a first liquid outlet, the first sealing liquid tank 242 is communicated with a first sealing liquid cooler 241, and the first sealing liquid cooler 241 is communicated with a first liquid inlet; the first sealing liquid tank 242 is provided with a first liquid supplementing port for introducing sealing liquid and a first exhaust port for leading out exhaust gas.
In this embodiment, the first condensing device includes a first condenser 211 and a second condenser 212 connected in series, and the first vacuum pump 23 is a liquid ring vacuum pump.
The second devolatilization vacuum equipment comprises a second devolatilization device 3 and a second vacuum device, wherein the second devolatilization device 3 is provided with a second feeding hole, a second discharging hole and a second vacuum hole, and the second feeding hole is communicated with the first discharging hole;
the second vacuum device comprises a second condensing device 41, a second vacuum fan 42, a second vacuum pump 43 and a second sealing liquid circulating cooling device which are sequentially communicated, the second condensing device 41 is communicated with a second vacuum port, a second discharge port is used for discharging materials, and the second vacuum pump 43 is provided with a second liquid outlet and a second liquid inlet;
the second sealing liquid circulating cooling device comprises a second sealing liquid cooler 441 and a second sealing liquid tank 442, wherein the second sealing liquid cooler 441 is provided with a second cold water inlet and a second cold water outlet, the second cold water inlet is used for introducing cold water, the second cold water outlet is used for leading out cold water, the second sealing liquid tank 442 is communicated with the second liquid outlet, the second sealing liquid tank 442 is communicated with the second sealing liquid cooler 441, and the second sealing liquid cooler 441 is communicated with the second liquid inlet; the second sealing liquid tank 442 is provided with a second liquid supplementing port for introducing sealing liquid and a second exhaust port for discharging tail gas.
In the present embodiment, the second condensing device 41 is 1 condenser, and the second vacuum pump 43 is a liquid ring vacuum pump.
2. The principle of operation of the system.
An operator introduces materials into a first feeding hole, the materials enter a first devolatilizer 1 for devolatilization, first volatile matters are obtained and enter a first condenser 211, cooling water is adopted by the first condenser 211, the water temperature of the cooling water is less than 30 ℃, a large amount of the first volatile matters are condensed to about 30 ℃, then the first volatile matters are introduced into a second condenser 212, chilled water is used by the second condenser 212, the water temperature of the chilled water is less than 10 ℃, so that most of the first volatile matters are condensed to form liquid, and a small amount of tail gas which cannot be condensed is generated; then the first volatile component passes through a first vacuum fan 22, a first vacuum pump 23 and a first sealing liquid tank 242 in sequence, the pressure of the first devolatilizer 1 is ensured by adopting the first vacuum fan 22 and the first vacuum pump 23 which are connected in series, the full vacuum effect is realized, finally a small amount of tail gas which is not condensed is discharged from a first exhaust port, and the liquid obtained after the condensation of the first volatile component is taken as sealing liquid which is collected in the first sealing liquid tank 242; the sealing liquid in the first sealing-liquid tank 242 is cooled by the first sealing-liquid cooler 241, and the cooled sealing liquid enters the first vacuum pump 23 from the first liquid inlet, so that the first vacuum pump 23 is kept in a sealed state. The first sealing liquid cooler 241 is cooled by chilled water, the temperature of the chilled water is less than 10 ℃, and when the amount of the sealing liquid is insufficient, the sealing liquid is introduced from the first liquid supplementing port.
The material after devolatilization treatment by the first devolatilizer 1 enters a second devolatilizer 3, so as to obtain a second volatile component, the second volatile component enters a second condensing device 41, the second condensing device 41 adopts cooling water or chilled water, the water temperature is less than 30 ℃, most of the second volatile component is cooled to form liquid, and a small amount of tail gas which is not condensed; then, the second volatile component passes through a second vacuum fan 42, a second vacuum pump 43 and a second sealing liquid tank 442 in sequence, the pressure of the second devolatilizer 3 is ensured by adopting the second vacuum fan 42 and the second vacuum pump 43 which are connected in series, the full vacuum effect is realized, finally, the tail gas which is not condensed is discharged from a second exhaust port, and the liquid obtained after cooling the second volatile component is taken as sealing liquid and collected in the second sealing liquid tank 442; the sealing liquid in the second sealing liquid tank 442 is cooled by the second sealing liquid cooler 441, and the cooled sealing liquid enters the second vacuum pump 43 from the second liquid inlet, so that the second vacuum pump 43 is kept in a sealed state. The second sealing liquid cooler 441 cools the sealing liquid with chilled water at a temperature less than 10 ℃, and introduces the sealing liquid from the second liquid supplementing port when the amount of the sealing liquid is insufficient.
Above-mentioned vacuum system and the theory of operation of devolatilizing, through the full vacuum effect of assurance system, let the polymer material take away in a large number through the volatile matter that takes off and volatilize the back and generate to reduce and remain monomer content, guarantee that production load is high, the product that finally obtains still is the high-quality product, has solved original devolatilizing vacuum system and can not guarantee full vacuum effect, and lead to producing the unstable problem of product quality.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A devolatilization vacuum system comprising:
the first devolatilization vacuum equipment comprises a first devolatilization device and a first vacuum device, wherein the first vacuum device comprises a first condensing device, a first vacuum fan, a first vacuum pump and a first sealing liquid circulating cooling device which are sequentially communicated; the first devolatilizer is provided with a first feeding hole, a first discharging hole and a first vacuum port, the first feeding hole is used for feeding materials, and the first vacuum port is communicated with the first condensing device; and
the second devolatilization vacuum equipment comprises a second devolatilization device and a second vacuum device, wherein the second vacuum device comprises a second condensing device, a second vacuum fan, a second vacuum pump and a second sealing liquid circulating cooling device which are sequentially communicated; the second devolatilizer is provided with a second feed inlet, a second discharge hole and a second vacuum hole, the second feed inlet is communicated with the first discharge hole, the second vacuum hole is communicated with the second condensing device, and the second discharge hole is used for leading out materials.
2. A devolatilization vacuum system as claimed in claim 1, wherein said first sealant circulating cooling device comprises a first sealant cooler and a first sealant tank, said first vacuum pump is provided with a first liquid outlet and a first liquid inlet, said first liquid outlet is communicated with said first sealant tank, said first sealant tank is communicated with said first sealant cooler, and said first sealant cooler is communicated with said first liquid inlet.
3. The devolatilization vacuum system as claimed in claim 2 wherein said first sealant liquid cooler is provided with a first cold water inlet for admitting cold water and a first cold water outlet for discharging cold water.
4. The devolatilization vacuum system as claimed in claim 2 wherein said first sealant tank is provided with a first fluid infusion port for introducing sealant fluid and a first vent port for venting off-gas.
5. A devolatilization vacuum system as claimed in claim 1, wherein said second circulating cooling device for sealing liquid comprises a second cooling device for sealing liquid and a second cooling device for sealing liquid, said second vacuum pump is provided with a second liquid outlet and a second liquid inlet, said second liquid outlet is communicated with said second cooling device for sealing liquid, said second cooling device for sealing liquid is communicated with said second liquid inlet.
6. The devolatilization vacuum system as claimed in claim 5 wherein said second sealant liquid cooler is provided with a second cold water inlet for the introduction of cold water and a second cold water outlet for the discharge of cold water.
7. The devolatilization vacuum system as claimed in claim 5 wherein said second sealant tank is provided with a second fluid infusion port for introducing sealant fluid and a second vent port for venting vent gas.
8. The devolatilization vacuum system as claimed in claim 1 wherein said first condensing means comprises at least 2 condensers, said condensers being in serial communication.
9. The devolatilization vacuum system as claimed in claim 1 wherein said second condensing means comprises 1 condenser.
10. The devolatilization vacuum system as claimed in claim 1 wherein said first vacuum pump and said second vacuum pump are liquid ring vacuum pumps.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279319.9U CN217489749U (en) | 2022-05-25 | 2022-05-25 | Devolatilization vacuum system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279319.9U CN217489749U (en) | 2022-05-25 | 2022-05-25 | Devolatilization vacuum system |
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| CN217489749U true CN217489749U (en) | 2022-09-27 |
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| CN202221279319.9U Active CN217489749U (en) | 2022-05-25 | 2022-05-25 | Devolatilization vacuum system |
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