CN205805912U - There is band and automatically detect the sheet material pumped vacuum systems of vacuum - Google Patents
There is band and automatically detect the sheet material pumped vacuum systems of vacuum Download PDFInfo
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- CN205805912U CN205805912U CN201620799104.8U CN201620799104U CN205805912U CN 205805912 U CN205805912 U CN 205805912U CN 201620799104 U CN201620799104 U CN 201620799104U CN 205805912 U CN205805912 U CN 205805912U
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Abstract
The utility model discloses a kind of sheet material pumped vacuum systems with band detection vacuum automatically, it includes: fluid segregation apparatus；Filtering tank group, the import of described filtering tank group is connected with the outlet of fluid segregation apparatus；Lobe pump, the import of described lobe pump is connected with the outlet of described filtering tank group；Sliding vane rotary pump, the import of described sliding vane rotary pump is connected with described Roots's delivery side of pump；Vacuum checking device, described vacuum checking device is connected in the connecting line after filtering tank group, in order to for detecting the vacuum of the bled body after filtering tank group；Control system, described control system is connected with the signal output part of vacuum checking device, and the control output end of described control system is connected with lobe pump and sliding vane rotary pump respectively, described control system is for the vacuum degree control lobe pump fed back according to vacuum checking device and the action of sliding vane rotary pump.This utility model not only rate of air sucked in required is big, vacuum is high, cleaning is convenient, and can monitor vacuum in real time.
Description
Technical field
This utility model relates to a kind of sheet material pumped vacuum systems with band detection vacuum automatically, it is adaptable to produce
The extrusion field of APET/PETG/PET plastic sheet.
Background technology
At present, the past produces APET/PETG/PET plastic sheet, all uses Single screw extrusion unit.Single screw extrusion machine
Raw material (new pellet or broken rim charge) must be dried dehumidifier and crystallization by group production.Production process often occurring, plasticizing is bad, sends out
Yellow frangible, brilliant point forms waste product more.The low source of consuming energy again of yield rate.So cost is high, profit is low, is the soft of Single screw extrusion unit
Rib.In recent years in order to solve above existing problem, each producer uses double-screw plastic extrusion machine group one after another, and double screw extruder is moulded
Changing, the self-cleaning of twin screw own is good, and extrusion capacity is big, and yield is high, but requires high to vacuum pump set.So this has just required
A set of energy longtime running is stable, the vacuum pump set system that vacuum is high, has many vacuum pump set the most at present, or price is high
High, otherwise vacuum does not reaches, cleaning inconvenience.If can not grasp accurate to vacuum, the matter of final products certainly will be affected
Amount, reduces production efficiency, also improves production cost.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, it is provided that one has band inspection automatically
Surveying the sheet material pumped vacuum systems of vacuum, not only rate of air sucked in required is big, vacuum is high for it, cleaning is convenient, and can monitor true in real time
Reciprocal of duty cycle.
This utility model solves above-mentioned technical problem and adopts the technical scheme that: a kind of have band automatically detection vacuum
Sheet material pumped vacuum systems, it includes:
Fluid segregation apparatus；
Filtering tank group, the import of described filtering tank group is connected with the outlet of fluid segregation apparatus；
Lobe pump, the import of described lobe pump is connected with the outlet of described filtering tank group；
Sliding vane rotary pump, the import of described sliding vane rotary pump is connected with described Roots's delivery side of pump；
Vacuum checking device, described vacuum checking device is connected in the connecting line after fluid segregation apparatus, in order to
Vacuum for the detection bled body after fluid segregation apparatus；
Control system, described control system is connected with the signal output part of vacuum checking device, and described control system
Control output end be connected with lobe pump and sliding vane rotary pump respectively, described control system is for being fed back according to vacuum checking device
Vacuum degree control lobe pump and the action of sliding vane rotary pump.
Further for guaranteeing the oil, water and other impurity that well separate in bled body, described fluid separates
Device includes separating tank body, cooling coil and Vacuum ball valve, and cooling coil is arranged in knockout drum body, described Vacuum ball valve with point
Entrance point from tank body is connected.
Further for the double-filtration of the bled body of realization, described filtering tank group includes coarse filtration tank and fine straining deep cooling
Tank, the import of coarse filtration tank is connected with the outlet of fluid segregation apparatus, the import phase of the outlet of coarse filtration tank and fine straining deep cooling tank
Even.
Further for guaranteeing the impurity that filters in gas well, described coarse filtration tank be provided with coarse filtration tank body and
The coarse filtration filter element being arranged in coarse filtration tank body.
Further for guaranteeing secondary filter impurity, described fine straining deep cooling tank is provided with fine straining tank body and is arranged on essence
Fine straining filter element in filter tank body.
Further for guaranteeing to be accurately detected vacuum, described vacuum checking device include resistance vacuum gauge and
Vacuum display instrument, described resistance vacuum gauge is arranged on the outer wall of the connecting line after filtering tank group, described resistance vacuum
The outfan of meter is connected with vacuum display instrument.
Make equipment cool down for realization further, thus reach preferably vacuumizing effect, there is band and automatically detect vacuum
Sheet material pumped vacuum systems also include the chiller for providing cooling medium, described chiller and fluid segregation apparatus
The water cooling structure part of water cooling structure part and/or the water cooling structure part of filtering tank group and/or lobe pump is connected.
Further for reaching good cooling effect, described chiller is frozen water machine.
Have employed technique scheme, this utility model has a following beneficial effect:
1. this utility model is owing to using sliding vane rotary pump and the compound mode of lobe pump, and a whole set of machine assembly air-exhausting amount can be allowed big,
Vacuum is high, and vacustat is at below 2mbar in normal operation, is all extracted by moisture in PET melt further,
Reduce PET further to decompose, make PET intrinsic viscosity drop within 0.04dL/g, improve finished sheet toughness and surface further
Quality, it is achieved truly exempt from crystallization, exempt to be dried；
2. this utility model is owing to setting multiple stage filtration system before using pump, steam and grease in extraction steam is entered step by step
Row condenses, storage, periodically discharges, is further ensured that vacustat, makes production stability greatly improve；Multistage filtering system
Impurities in airflow and float are effectively sticked in filter element by the design of system, it is to avoid enter pump group and cause pump group stuck or broken
Bad, reduce pump group maintenance frequency and pump group maintenance cost；
3. this utility model is owing to using vacuum checking device, is monitored by vacuum display instrument after multiple stage filtration system
Vacuum, can prepare to hold vacuum and the rule of PET sheet quality, and specific aim regulates corresponding valve, changes filter element or carry out
System is maintained, convenient directly perceived.
Accompanying drawing explanation
Fig. 1 is a kind of sheet material pumped vacuum systems structure chart with band detection vacuum automatically of the present utility model；
Fig. 2 is the structure chart of the novel fluid segregation apparatus of this use；
Fig. 3 is coarse filtration jar structure figure of the present utility model；
Fig. 4 is essence filtering tank structure chart of the present utility model.
Detailed description of the invention
In order to make content of the present utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail this utility model.
As shown in figures 1-4, a kind of have the automatic sheet material pumped vacuum systems detecting vacuum of band, and it includes:
Fluid segregation apparatus 2；
Filtering tank group, the import of described filtering tank group is connected with the outlet of fluid segregation apparatus 2；
Lobe pump 5, the import of described lobe pump 5 is connected with the outlet of described filtering tank group；Described lobe pump 5 uses domestic
High-quality lobe pump, described lobe pump 5 must be with cooling down water；
Sliding vane rotary pump 6, the import of described sliding vane rotary pump 6 is connected with the outlet of described lobe pump 5；Described sliding vane rotary pump uses import
Pump；
Vacuum checking device 9, described vacuum checking device 9 is connected in the connecting line after fluid segregation apparatus, with
Just for detecting the vacuum of the bled body after fluid segregation apparatus；
Control system 8, described control system 8 is connected with the signal output part of vacuum checking device 9, and described control is
The control output end of system 8 is connected with lobe pump 5 and sliding vane rotary pump 6 respectively, and described control system 8 is for according to vacuum checking device 9
The vacuum degree control lobe pump 5 fed back and the action of sliding vane rotary pump 6.
As in figure 2 it is shown, described fluid segregation apparatus includes separating tank body 2-1, cooling coil 2-2 and Vacuum ball valve 2-3, cold
But, in coil pipe 2-2 is arranged on separation tank body 2-1, described Vacuum ball valve 2-3 is connected with the entrance point separating tank body 2-1.
As it is shown in figure 1, described filtering tank group includes coarse filtration tank 3 and fine straining deep cooling tank 4, the import of coarse filtration tank 3 and oil
The outlet of liquid separating apparatus 2 is connected, and the outlet of coarse filtration tank 3 is connected with the import of fine straining deep cooling tank 4.
As it is shown on figure 3, described coarse filtration tank is provided with coarse filtration tank body 3-1 and the coarse filtration filter being arranged in coarse filtration tank body 3-1
Core 3-2.Coarse filtration filter element 3-2 material uses 304 rustless steels, and structure uses multilayer folding mode.
As shown in Figure 4, described fine straining deep cooling tank 4 is provided with fine straining tank body 4-1 and the fine straining being arranged in fine straining tank body 4-1
Filter element 4-2.The outside material of fine straining filter element 4-2 uses 304 rustless steels, and internal material is wood pulp filter paper, and structure uses multilamellar
Folding mode.
Wherein, specifically, the port of export separating tank body 2-1 is connected with the entrance point of coarse filtration tank body 3-1, coarse filtration tank body 3-1
The port of export be connected with the entrance point of fine straining tank body 4-1, the port of export of fine straining tank body 4-1 is connected with the import of lobe pump 5.
Described vacuum checking device 9 includes resistance vacuum gauge and vacuum display instrument, and described resistance vacuum gauge was arranged on
On the outer wall of the connecting line after filter tank group, the outfan of described resistance vacuum gauge is connected with vacuum display instrument.
As it is shown in figure 1, the sheet material pumped vacuum systems with band detection vacuum automatically also includes for providing cooling medium
Chiller 7, the water cooling structure part of described chiller 7 and fluid segregation apparatus 2 and/or the water cooling structure part of filtering tank group and/
Or the water cooling structure part of lobe pump 5 is connected；Wherein, the water cooling structure part in coarse filtration tank body 3-1 and fine straining tank body 4-1 is water leg
Structure, and water leg is provided with water flowing joint.
Described chiller 7 is frozen water machine.Described frozen water machine ensure that leaving water temperature is at 7 DEG C or about 8 DEG C.
This pumped vacuum systems can arrange a base 1, by fluid segregation apparatus 2, lobe pump 5, sliding vane rotary pump 6, filtering tank group, control
System 8 processed and chiller 7 and between associated pipe be connected on base 1.
Ensuring that and reach condition of high vacuum degree requirement, described lobe pump 5 needs water-cooled, needs on lobe pump 5 cold before start
But joint is received on described chiller 7 frozen water machine.Must ensure to cool down before water is opened prior to sliding vane rotary pump 6 and put in place, run
Journey can touch the temperature of a lower pump body with hands.Lobe pump 5 starts should not too early；
In order to make package unit, it is possible to be easy to control, by the display screen of vacuum checking device 9, lobe pump 5 and sliding vane rotary pump 6
Start and stop be provided entirely in the electrical control cubicles in control system 8, convenient operation.
During being operated, open before lobe pump 5, sliding vane rotary pump 6, the oil level of pump to be checked, open sliding vane rotary pump 5, true
Before empty ball valve 2-3, it is ensured that Vacuum ball valve 2-3 shuts, and all valves are closed.Sliding vane rotary pump 6 is to fluid segregation apparatus 2
In separation tank body 2-1 start evacuation before, must tank be ensured being dry, if there being steam, then making drainer
Ensure at about 8 DEG C, and during whole moisturizing, the outlet temperature of guarantee frozen water machine is at about 8 DEG C, in order to avoid by steam suction
The pump housing, affects the work of sliding vane rotary pump 6.
After running sliding vane rotary pump 6, please don't open Vacuum ball valve 2-2 yet, vacuum tube is first taken out a period of time by sliding vane rotary pump 6, observes
Whether noise is produced when sliding vane rotary pump 6 runs？Whether can be extracted into end vacuum within the normal time？If changed, then please be first
Check sliding vane rotary pump 6 oil whether rotten, pump head electromagnetic valve is the most normally-open, whether each coupling part on pump head exists loosening
Phenomenon etc..
Every about 20 days, vacuum system be cleared up.Opening coarse filtration tank 3 and fine straining deep cooling tank 4, the inside has
Coarse filtration filter element 3-2 and fine straining filter element 4-2, changes fine straining filter element 4-2, cleans coarse filtration filter element 3-2, all vacuum lines, tank simultaneously
Body, cooling coil 2-1 are required for complete liquidation one time, to ensure the normal operation of equipment.
Compared with prior art, this utility model, owing to being provided with vacuum checking device 9, is monitored by vacuum display instrument
Vacuum, can prepare to hold vacuum and the rule of PET sheet quality, and specific aim regulates corresponding valve, changes filter element or carry out
System is maintained, convenient directly perceived.Owing to being provided with fluid segregation apparatus 2, further ensure that stablizing of vacuum, make production stability
Greatly improve；By arranging multistage chiller before pump, carry out steam and grease in extraction steam step by step condensing, storing,
Periodically discharge.Impurities in airflow and float are effectively adhered in the filter by the design of multistage filtering, it is to avoid enter pump
Group causes pump group stuck or destroys, and reduces pump group maintenance frequency and pump group maintenance cost.
Particular embodiments described above, solves the technical problem that this utility model, technical scheme and beneficial effect enter
Go further description, it should be understood that and the foregoing is only specific embodiment of the utility model, and need not
In limiting this utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement done
Deng, within should be included in protection domain of the present utility model.
Claims (8)
1. a sheet material pumped vacuum systems with band detection vacuum automatically, it is characterised in that it includes:
Fluid segregation apparatus (2)；
Filtering tank group, the import of described filtering tank group is connected with the outlet of fluid segregation apparatus (2)；
Lobe pump (5), the import of described lobe pump (5) is connected with the outlet of described filtering tank group；
Sliding vane rotary pump (6), the import of described sliding vane rotary pump (6) is connected with the outlet of described lobe pump (5)；
Vacuum checking device (9), described vacuum checking device (9) is connected in the connecting line after fluid segregation apparatus, with
Just for detecting the vacuum of the bled body after fluid segregation apparatus；
Control system (8), described control system (8) is connected with the signal output part of vacuum checking device (9), and described control
The control output end of system (8) is connected with lobe pump (5) and sliding vane rotary pump (6) respectively, and described control system (8) is for according to vacuum
Detect vacuum degree control lobe pump (5) and the action of sliding vane rotary pump (6) that device (9) is fed back.
The sheet material pumped vacuum systems with band detection vacuum automatically the most according to claim 1, it is characterised in that: described
Fluid segregation apparatus includes separating tank body (2-1), cooling coil (2-2) and Vacuum ball valve (2-3), and cooling coil (2-2) is arranged
In separating tank body (2-1), described Vacuum ball valve (2-3) is connected with the entrance point separating tank body (2-1).
The sheet material pumped vacuum systems with band detection vacuum automatically the most according to claim 1, it is characterised in that: described
Filtering tank group includes that coarse filtration tank (3) and fine straining deep cooling tank (4), the import of coarse filtration tank (3) go out with fluid segregation apparatus (2)
Mouth is connected, and the outlet of coarse filtration tank (3) is connected with the import of fine straining deep cooling tank (4).
The sheet material pumped vacuum systems with band detection vacuum automatically the most according to claim 3, it is characterised in that: described
Coarse filtration tank is provided with coarse filtration tank body (3-1) and the coarse filtration filter element (3-2) being arranged in coarse filtration tank body (3-1).
5. automatically detect the sheet material pumped vacuum systems of vacuum according to the band that has described in claim 3 or 4, it is characterised in that:
Described fine straining deep cooling tank (4) is provided with fine straining tank body (4-1) and the fine straining filter element (4-2) being arranged in fine straining tank body (4-1).
The sheet material pumped vacuum systems with band detection vacuum automatically the most according to claim 1, it is characterised in that: described
Vacuum checking device (9) includes resistance vacuum gauge and vacuum display instrument, after described resistance vacuum gauge is arranged on filtering tank group
Connecting line outer wall on, the outfan of described resistance vacuum gauge is connected with vacuum display instrument.
The sheet material pumped vacuum systems with band detection vacuum automatically the most according to claim 1, it is characterised in that: also wrap
Include the chiller (7) for providing cooling medium, the water cooling structure part of described chiller (7) and fluid segregation apparatus (2) and/
Or the water cooling structure part of the water cooling structure part of filtering tank group and/or lobe pump (5) is connected.
The sheet material pumped vacuum systems with band detection vacuum automatically the most according to claim 7, it is characterised in that: described
Chiller (7) is frozen water machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620799104.8U CN205805912U (en) | 2016-07-11 | 2016-07-11 | There is band and automatically detect the sheet material pumped vacuum systems of vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620799104.8U CN205805912U (en) | 2016-07-11 | 2016-07-11 | There is band and automatically detect the sheet material pumped vacuum systems of vacuum |
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| Publication Number | Publication Date |
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| CN205805912U true CN205805912U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620799104.8U Active CN205805912U (en) | 2016-07-11 | 2016-07-11 | There is band and automatically detect the sheet material pumped vacuum systems of vacuum |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340082A (en) * | 2018-09-28 | 2019-02-15 | 郑旺旺 | A kind of pumping unit suitable for large-scale vacuum component |
| CN113309700A (en) * | 2021-05-31 | 2021-08-27 | 广东达诚技术有限公司 | Double-pump vacuum-pumping device of sheet machine |
-
2016
- 2016-07-11 CN CN201620799104.8U patent/CN205805912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340082A (en) * | 2018-09-28 | 2019-02-15 | 郑旺旺 | A kind of pumping unit suitable for large-scale vacuum component |
| CN113309700A (en) * | 2021-05-31 | 2021-08-27 | 广东达诚技术有限公司 | Double-pump vacuum-pumping device of sheet machine |
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