CN2798000Y - Molecular sieve type moisture removal drying device - Google Patents
Molecular sieve type moisture removal drying device Download PDFInfo
- Publication number
- CN2798000Y CN2798000Y CN 200520055357 CN200520055357U CN2798000Y CN 2798000 Y CN2798000 Y CN 2798000Y CN 200520055357 CN200520055357 CN 200520055357 CN 200520055357 U CN200520055357 U CN 200520055357U CN 2798000 Y CN2798000 Y CN 2798000Y
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- negative pressure
- molecular sieve
- piloted valve
- internally piloted
- drying device
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Abstract
The utility model relates to a molecular sieve type moisture removal drying device. The utility model solves the problems of the existing molecular sieve type moisture removal drying device of high required temperature, long moisture removal time, large occupied land, bad serviceability and huge and complicated structure for a vacuum type moisture removal drying device. The utility model has the advantages of short moisture removal time, small size for an apparatus, simpler structure and low cost. The utility model has the technical scheme key point that the utility model comprises a raw material bin, two molecular sieve pot, a heater, a moisture absorption draught fan, a cooler, a moisture discharging draught fan, an internally piloted valve, pipelines and an automatic control system, wherein the pipelines are connected among the elements and a moisture absorption circulation loop and the moisture discharging circulation loop are formed. The utility model is characterized in that the molecular sieve type moisture removable drying device comprises an air flow jet type negative pressure device, or a liquid jet type negative pressure device or a vacuum pump and a negative pressure opening of the negative pressure device or an air inlet of the vacuum pump is communicated with the internally piloted valve and the molecular sieve pot through pipelines.
Description
Affiliated technical field
The utility model belongs to the material dehumidification drying device, specifically is a kind of molecular sieve formula dehumidification drying device that is exclusively used in plastic raw materials.
Background technology
Plastic raw materials is being processed in the forming process of plastic products, the humidity of plastic raw materials is an important parameter, the humidity size, directly have influence on the product quality of plastic products, therefore raw material is before entering the equipment of shaping, often need strict its humidity of control, that is to say and to carry out removal moisture drying to it.The existing dehumidification drying device that is exclusively used in plastic raw materials has molecular sieve formula dehumidification drying device, its structure is just like the air dryer of Chinese patent ZL00227209.1 number, be on gas channel, to be provided with retained chamber, retained chamber is provided with electric heat source, molecular sieve and the filter that is mated, cooler bin, blower fan, transfer valve etc., with molecular sieve the moisture in the plastic raw materials is absorbed, again the saturation moisture in the molecular sieve is drained, under normal pressure, it totally is the comparison difficulty that saturation moisture in the molecular sieve will break away from, so the hydrofuge temperature that it requires is than higher, generally need at 220～240 ℃, time is also long, generally needs could arrange totally through 2～4 hours, in addition for the moisture in the molecular sieve is fully discharged, require the heating surface area of molecular sieve to want big, this just requires the container of molecular sieve enough big, certainly will take bigger space, and tend to not have influence on production in enormous quantities owing to molecular sieve efficient is high, particularly the too high meeting of hydrofuge temperature makes the molecular sieve lost of life.Therefore traditional molecular sieve dehumidifying exists and requires the temperature height, the dehumidifying time is long, occupation of land is big, the shortcoming of poor durability, and economic benefit is low, and production cost is higher.The existing dehumidification drying device that is exclusively used in the thermosensitive plastic raw material has the vacuum pump type dehumidification drying device, its structure is just like the continuous vacuum crystallization drying system of Chinese patent ZL97236834.5 number, structure includes by the corresponding last transition feed bin that connects of pipeline, the preheating storehouse, dryness storehouse, following transition feed bin, storage bin, air dryer, vavuum pump, heating system, advancing of last transition feed bin, be separately installed with the air hermetic push-pull valve on the discharging opening pipeline, advancing of following transition feed bin, be separately installed with the air hermetic push-pull valve on the discharging opening pipeline, air dryer is connected with storage bin, vavuum pump by vacuum tube respectively with the preheating storehouse, dryness storehouse, following transition feed bin communicates, vacuum tube is provided with the pipeline internally piloted valve, the preheating storehouse, dryness storehouse is respectively arranged with heating system.The structure of this vacuum pump type dehumidification drying device is very huge and complicated, can only be applicable to large-scale centralized production, the very flexible of its use.
Summary of the invention
In order to overcome existing molecular sieve formula dehumidification drying device requirement temperature height, dehumidifying time length, to take up an area of big, poor durability, with defective such as the too huge and complexity of vacuum pump type dehumidification drying device structure, the purpose of this utility model provides a kind of molecular sieve formula dehumidification drying device, can make the temperature of requirement low, the dehumidifying time is short, equipment volume is little, structure is simple, reduce cost, increase the benefit.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of molecular sieve formula dehumidification drying device, comprise former feed bin, two molecular sieve tanks, heater, the moisture absorption blower fan, cooler, wet-emitting blower, internally piloted valve and connecting pipe between them and self-con-tained unit, wherein be equipped with the internally piloted valve that internally piloted valve that moisture absorption uses and hydrofuge are used on each molecular sieve tank air inlet/outlet, the moisture absorption blower fan, cooler, the internally piloted valve that moisture absorption is used, molecular sieve tank, heater, former feed bin and the connecting pipe between them constitute the moisture absorption closed circuit, wet-emitting blower, heater, the internally piloted valve that hydrofuge is used, molecular sieve tank, airspace and the connecting pipe between them constitute the hydrofuge closed circuit, self-con-tained unit and internally piloted valve are made control connection, it is characterized in that molecular sieve formula dehumidification drying device comprises an air flow jetting type negative pressure device, the negative pressure mouth of air flow jetting type negative pressure device is communicated with molecular sieve tank by pipeline and internally piloted valve, perhaps comprise a liquid injecting type negative pressure device, the negative pressure mouth of liquid injecting type negative pressure device is communicated with molecular sieve tank by pipeline and internally piloted valve, perhaps comprises a vavuum pump, the air inlet of vavuum pump is communicated with molecular sieve tank by pipeline and internally piloted valve.
Above-mentioned internally piloted valve can be magnetic valve, air pressure valve, hydraulic valve etc.; Self-con-tained unit can comprise control circuit, air pressure mechanism, hydraulic mechanism etc.
Above-mentioned air flow jetting type negative pressure device can be made of the tracheae of blower fan, jet flow negative pressure seat and connection usefulness thereof, also can include accessories such as air accumulator, internally piloted valve; The jet flow negative pressure seat is to utilize the head piece of crossing that diminishes that air-flow is quickened, and produces negative pressure around high velocity air.Above-mentioned liquid injecting type negative pressure device can be made of the liquid pipe of liquid pump, jet flow negative pressure seat and connection usefulness thereof, also can include accessories such as fluid reservoir, internally piloted valve; Its jet flow negative pressure seat also is to utilize the head piece of crossing that diminishes that liquid is quickened, and produces negative pressure around flow at high speed liquid.
The beneficial effects of the utility model are: a molecular sieve tank utilizes the moisture absorption closed circuit that the plastic raw materials in the former feed bin is carried out continuous hygroscopic desiccation, another molecular sieve tank utilizes the hydrofuge closed circuit to discharge the moisture that absorbs simultaneously, two molecular sieve tank alternations, self-con-tained unit is by the realization of internally piloted valve control alternation, the big characteristics of flexibility that this molecular sieve formula dehumidification drying device has is simple in structure, volume is little, use; Because the utility model comprises an air flow jetting type negative pressure device, the negative pressure mouth of air flow jetting type negative pressure device is communicated with molecular sieve tank by pipeline and internally piloted valve, perhaps comprise a liquid injecting type negative pressure device, the negative pressure mouth of liquid injecting type negative pressure device is communicated with molecular sieve tank by pipeline and internally piloted valve, perhaps comprise a vavuum pump, the air inlet of vavuum pump is communicated with molecular sieve tank by pipeline and internally piloted valve, promptly be to be that molecular sieve tank is set up a negative pressure hydrofuge loop in addition by negative pressure device, former hydrofuge closed circuit and the loop alternation of negative pressure hydrofuge, make molecular sieve tank molecular sieve discharge moisture evenly and efficient greatly improve, operating temperature can greatly reduce, the dehumidifying time shortens, the molecular sieve volume is little and durability good, thereby reduces cost, increase the benefit.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the partial schematic sectional view (omit self-con-tained unit and with being connected of internally piloted valve) of the duty of an embodiment of the present utility model.
Fig. 2 is the schematic diagram that the air flow jetting type negative pressure device of Fig. 1 is started working.
Fig. 3 is the schematic diagram of another duty of Fig. 1.
Fig. 4 is the schematic diagram that the air flow jetting type negative pressure device of Fig. 3 is started working.
Fig. 5 is gas of the present utility model or liquid embodiment cross-sectional schematic of jet flow negative pressure seat.
Among the figure, 1, former feed bin; 2 and 3, molecular sieve tank; 4 and 5, heater; 6, moisture absorption blower fan; 7, cooler; 8, wet-emitting blower; 9,10,11,12,13,14,15,16,17 and 18, internally piloted valve; 19 and 20, connecting pipe; 21, air flow jetting type negative pressure device; 22, pipeline; 23, blower fan; 24, jet flow negative pressure seat; 25, filter; 26, plastic raw materials; 27, gas outlet; 28, pedestal; 29, upstream chamber; 30, downstream chamber; 31, negative pressure chamber; 32, nozzle; 33, spray orifice; 34, port; 35,36 and 37, aperture.
The specific embodiment
With reference to Fig. 1, this molecular sieve formula dehumidification drying device, comprise former feed bin 1, two molecular sieve tanks 2 and 3, heater 4 and 5, moisture absorption blower fan 6, cooler 7, wet-emitting blower 8, internally piloted valve 9,10,11,12,13,14,15,16,17,18 and the connecting pipe between them 19,20 grade and self-con-tained units, wherein be equipped with the internally piloted valve 9 that moisture absorption is used on the air inlet/outlet of molecular sieve tank 2,13 and the internally piloted valve 10 used of hydrofuge, 14, be equipped with the internally piloted valve 11 that moisture absorption is used on the air inlet/outlet of molecular sieve tank 3,15 and the internally piloted valve 12 used of hydrofuge, 16, moisture absorption blower fan 6, cooler 7, the internally piloted valve 13 and 9 that moisture absorption is used, molecular sieve tank 2, heater 4, former feed bin 1 and the connecting pipe between them 19 etc. constitute the moisture absorption closed circuit, wet-emitting blower 8, heater 5, the internally piloted valve 12 and 16 that hydrofuge is used, molecular sieve tank 3, airspace and the connecting pipe between them 20 etc. constitute the hydrofuge closed circuit, self-con-tained unit respectively with each internally piloted valve 9,10,11,12,13,14,15,16,17,18 make control connection, it is characterized in that molecular sieve formula dehumidification drying device comprises an air flow jetting type negative pressure device 21, the negative pressure mouth of air flow jetting type negative pressure device 21 is by pipeline 22 and internally piloted valve 17,18 are communicated with molecular sieve tank 2 and 3 respectively.In addition, air flow jetting type negative pressure device 21 is made of blower fan 23, jet flow negative pressure seat 24 and the pipeline 22 etc. that connects usefulness thereof; Also be provided with filter 25 on the admission line of moisture absorption blower fan 6.As shown in Figure 1, during the work of this molecular sieve formula dehumidification drying device, moisture absorption blower fan 6 will be delivered to plastic raw materials 26 lower floors of former feed bin 1 by the hot blast after heater 4 heating in the moisture absorption closed circuit, take away the moisture in the plastic raw materials 26, the hot blast of band moisture is through the filtration of filter 25, after cooler 7 coolings, enter molecular sieve tank 2 through internally piloted valve 13, moisture is absorbed by the molecular sieve in the molecular sieve tank 2, the dry air that comes out from molecular sieve tank 2 is through internally piloted valve 9, again through heater 4 heating, circulation continuously according to this; Wet-emitting blower 8 in the hydrofuge closed circuit, after air heater via 5 heating that airspace is entered, in internally piloted valve 12 enters molecular sieve tank 3, molecular sieve heating to molecular sieve tank 3 makes it that portion of water is discharged, the gas of band moisture is discharged to airspace through internally piloted valve 16, according to this circulation continuously; As shown in Figure 2, after the portion of water of molecular sieve 3 is drained, internally piloted valve 12,16 is closed, the hydrofuge closed circuit quits work, and internally piloted valve 18 is opened, and air flow jetting type negative pressure device 21 is started working, blower fan 23 with air blowed jet flow negative pressure seat 24,27 whens ejection from the gas outlet, just produced negative pressure in the pipeline 22, the molecular sieve of negative pressure in internally piloted valve 18 acts on molecular sieve tank 3, the moisture that molecular sieve is left is discharged rapidly and is drained with the air-flow of air flow jetting type negative pressure device 21.
With reference to Fig. 3, to absorb moisture content saturated when the molecular sieve of the molecular sieve tank 2 of Fig. 1, when the molecular sieve of molecular sieve tank 3 is fully discharged moisture content, control circuit is controlled internally piloted valve 9 respectively, 12,13,16,18 close, internally piloted valve 10,11,14,15 open, at this moment moisture absorption closed circuit changes into by moisture absorption blower fan 6, the internally piloted valve 15 and 11 that moisture absorption is used, molecular sieve tank 3, heater 4, formations such as former feed bin 1 and the connecting pipe between them 19, the hydrofuge closed circuit changes into by wet-emitting blower 8, heater 5, the internally piloted valve 10 and 14 that hydrofuge is used, molecular sieve tank 2, formations such as airspace and the connecting pipe between them 20; As shown in Figure 4, when molecular sieve 2 be heated portion of water drained after, internally piloted valve 10,14 is closed, the hydrofuge closed circuit quits work, and internally piloted valve 17 is opened, and air flow jetting type negative pressure device 21 is started working, blower fan 23 with air blowed jet flow negative pressure seat 24,27 whens ejection from the gas outlet, just produced negative pressure in the pipeline 22, the molecular sieve of negative pressure in internally piloted valve 17 acts on molecular sieve tank 2, the moisture that molecular sieve is left is discharged rapidly and is drained with the air-flow of air flow jetting type negative pressure device 21.
With reference to Fig. 5, the jet flow negative pressure seat that this gas or liquid are used, it is a pedestal 28, upstream chamber 29, downstream chamber 30, negative pressure chamber 31 are arranged on it, negative pressure chamber 31 is between upstream chamber 29 and the downstream chamber 30, one nozzle 32 that extends in negative pressure chamber 31 is arranged on the next door of negative pressure chamber 31 and upstream chamber 29, one spray orifice 33 is arranged in the middle of the nozzle 32, spray orifice 33 1 ends lead to upstream chamber 29, the other end faces the port 34 on negative pressure chamber 31 and 30 next doors, downstream chamber, and all there are external aperture 35,36,37 in upstream chamber 29, downstream chamber 30, negative pressure chamber 31.When the gas that enters upstream chamber 29 or liquid through spray orifice 33, when high velocity jet was imported and exported chamber 30, negative pressure chamber 31 just produced negative pressure, but negative pressure is by the molecular sieve of aperture 37 continuous actions in molecular sieve.
Claims (6)
1, a kind of molecular sieve formula dehumidification drying device, comprise former feed bin, two molecular sieve tanks, heater, the moisture absorption blower fan, cooler, wet-emitting blower, internally piloted valve and connecting pipe between them and self-con-tained unit, wherein be equipped with the internally piloted valve that internally piloted valve that moisture absorption uses and hydrofuge are used on each molecular sieve tank air inlet/outlet, the moisture absorption blower fan, cooler, the internally piloted valve that moisture absorption is used, molecular sieve tank, heater, former feed bin and the connecting pipe between them constitute the moisture absorption closed circuit, wet-emitting blower, heater, the internally piloted valve that hydrofuge is used, molecular sieve tank, airspace and the connecting pipe between them constitute the hydrofuge closed circuit, self-con-tained unit and internally piloted valve are made control connection, it is characterized in that molecular sieve formula dehumidification drying device comprises an air flow jetting type negative pressure device, the negative pressure mouth of air flow jetting type negative pressure device is communicated with molecular sieve tank by pipeline and internally piloted valve, perhaps comprise a liquid injecting type negative pressure device, the negative pressure mouth of liquid injecting type negative pressure device is communicated with molecular sieve tank by pipeline and internally piloted valve, perhaps comprises a vavuum pump, the air inlet of vavuum pump is communicated with molecular sieve tank by pipeline and internally piloted valve.
2,, it is characterized in that described air flow jetting type negative pressure device is made of the tracheae of blower fan, jet flow negative pressure seat and connection usefulness thereof by the described molecular sieve formula of claim 1 dehumidification drying device.
3, by the described molecular sieve formula of claim 1 dehumidification drying device, it is characterized in that described air flow jetting type negative pressure device is made of the tracheae of blower fan, jet flow negative pressure seat, air accumulator, internally piloted valve and connection usefulness thereof.
4,, it is characterized in that described liquid injecting type negative pressure device can be made of the liquid pipe of liquid pump, jet flow negative pressure seat and connection usefulness thereof by the described molecular sieve formula of claim 1 dehumidification drying device.
5, by the described molecular sieve formula of claim 1 dehumidification drying device, it is characterized in that described liquid injecting type negative pressure device can be made of the liquid pipe of liquid pump, jet flow negative pressure seat, fluid reservoir, internally piloted valve and connection usefulness thereof.
6, by claim 2,3,4 or 5 described molecular sieve formula dehumidification drying devices, it is characterized in that described jet flow negative pressure seat is a pedestal, upstream chamber, downstream chamber, negative pressure chamber are arranged on it, negative pressure chamber is between upstream chamber and the downstream chamber, one nozzle that extends in negative pressure chamber is arranged on the next door of negative pressure chamber and upstream chamber, one spray orifice is arranged in the middle of the nozzle, spray orifice one end leads to upstream chamber, the other end faces the port on negative pressure chamber and the next door, downstream chamber, and all there are external aperture in upstream chamber, downstream chamber, negative pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055357 CN2798000Y (en) | 2005-03-03 | 2005-03-03 | Molecular sieve type moisture removal drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055357 CN2798000Y (en) | 2005-03-03 | 2005-03-03 | Molecular sieve type moisture removal drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2798000Y true CN2798000Y (en) | 2006-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055357 Expired - Fee Related CN2798000Y (en) | 2005-03-03 | 2005-03-03 | Molecular sieve type moisture removal drying device |
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| Country | Link |
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| CN (1) | CN2798000Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149525A (en) * | 2008-09-02 | 2011-08-10 | 戈拉工业公司 | Dryer system with improved throughput |
| CN104503501A (en) * | 2014-11-27 | 2015-04-08 | 国家电网公司 | Energy-saving environmental-friendly electrical equipment box dehumidifying apparatus |
| CN111811216A (en) * | 2020-07-17 | 2020-10-23 | 郑州中远干燥工程有限公司 | Continuous vacuum drying reaction device and system |
| CN113893837A (en) * | 2021-09-28 | 2022-01-07 | 东台市顺达工业气体有限公司 | Acetylene molecular sieve high-pressure drying equipment |
-
2005
- 2005-03-03 CN CN 200520055357 patent/CN2798000Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149525A (en) * | 2008-09-02 | 2011-08-10 | 戈拉工业公司 | Dryer system with improved throughput |
| CN102149525B (en) * | 2008-09-02 | 2015-08-26 | 戈拉工业公司 | There is the drying system of the handling capacity of improvement |
| CN104503501A (en) * | 2014-11-27 | 2015-04-08 | 国家电网公司 | Energy-saving environmental-friendly electrical equipment box dehumidifying apparatus |
| CN111811216A (en) * | 2020-07-17 | 2020-10-23 | 郑州中远干燥工程有限公司 | Continuous vacuum drying reaction device and system |
| CN111811216B (en) * | 2020-07-17 | 2022-02-01 | 郑州中远干燥工程有限公司 | Continuous vacuum drying reaction device and system |
| CN113893837A (en) * | 2021-09-28 | 2022-01-07 | 东台市顺达工业气体有限公司 | Acetylene molecular sieve high-pressure drying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 Termination date: 20100303 |