CN102423607A - Precooling evaporator - Google Patents
Precooling evaporator Download PDFInfo
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- CN102423607A CN102423607A CN2011103636284A CN201110363628A CN102423607A CN 102423607 A CN102423607 A CN 102423607A CN 2011103636284 A CN2011103636284 A CN 2011103636284A CN 201110363628 A CN201110363628 A CN 201110363628A CN 102423607 A CN102423607 A CN 102423607A
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- air chamber
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Abstract
The invention relates to a precooling evaporator, particularly relates to a precooling evaporator of a freeze drier, and belongs to the field of heat radiation technology. The precooling evaporator comprises a precooler and a gas-water separator, and a dry air outlet is disposed on the precooler; the invention is characterized in that: the precooler comprises a compressed air inlet and a first air chamber which are mutually connected; an evaporator is disposed between the first air chamber and the fourth air chamber; the evaporator comprises a core; the gas-water separator is mounted at the end of the core; the gas-water separator comprises a demister, a second air chamber, and a third air chamber; the fourth air chamber is connected with a compressed air outlet; the demister is coated in the third air chamber; the second air chamber is mounted at the upper right part of the core; the invention adopts a refrigerant to cool the compressed air, basically maintains the removed dry air temperature to be constant, solves the disadvantage of not enough evaporation during implementation, and reaches the purpose of water vapor removal as much as possible.
Description
Technical field
The present invention relates to a kind of precooling evaporator, be specifically related to a kind of precooling evaporator of freeze drier, belong to the heat dissipation technology field.
Background technology
Compressed air is produced people, various fields in life obtains using more and more widely; This is not only as a kind of power; With respect to kinds of drive such as machinery, electrical equipment, hydraulic pressure; Compressed air has its original advantage, is also depending on the progressive and perfect day by day of compressed air drying and purification techniques to a greater extent.
We know, contain many moisture in the air, after air is compressed; Bigger (being in saturation state under most of situation) that relative humidity will become; If do not take any measure, moisture wherein can get into pipeline along the line and all gas equipments, makes their corrosions, damage; In fact, the Wet Compression air without dried does not have Practical significance to a great extent.
Traditional freezing type drier comprises forecooler, evaporimeter and moisture trap.The similar air heat exchanger of forecooler.For condensate is discharged easily, arrange the higher saturated compressed air of temperature to walk shell side usually, and the lower dry air of temperature is walked tube side.The main effect of forecooler in cooling driers is that " recovery " is evaporated the entrained cold of device cooling back compressed air; And (promptly discharge from air compressor machine with the compressed air that this part cold cools off the higher temperature that carries a large amount of steam; The temperature of pass through the after cooler cooling, passing through gas-water separation again is generally at the saturated compressed air more than 40 ℃); Thereby alleviated the thermic load of freeze drying machine cooling system, the purpose that reaches energy savings is generally said, the high low reaction of cooling driers delivery temperature the degree of one-tenth of utilization again of forecooler cold that the system system is produced; Delivery temperature is high, and the cryogenic energy utilization rate is high.But owing to received the restriction of heat exchange condition, particularly receive can not the be below the freezing point restriction of condition of dew point in the machine, the raising of dried machine delivery temperature is limited.
Evaporimeter is one of parts main in the drying machine.Dried machine two big system---air flow system and refrigeration system are met in evaporimeter, so the evaporimeter operating mode can reflect compressed-air actuated treatment effect, also reflected the working condition of refrigeration system simultaneously.We always hope cooling driers delivery temperature high more good more (delivery temperature is high, and it is many to explain that energy reclaims), and preferably importing and exporting does not have the temperature difference.Evaporimeter is divided into circular form and membrane type two big classes.Mainly form by heating clamber and vaporization chamber two parts.Heating clamber provides evaporation needed heat to liquid, impels the liquid boiling vaporization; Vaporization chamber separates gas-liquid two-phase fully.The steam that produces in the heating clamber has a large amount of liquid foams, arrived vaporization chamber than large space after, the effect of these liquid thereby self cohesions or demister etc. is able to separate with steam.Usually demister is located at the top of vaporization chamber.Not reaching this point but be actually, is below 45 ℃ the time at temperature of inlet air, and cooling driers is not rarely seen into and out of the situation that temperature differs more than 15 ℃.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, a kind of precooling evaporator is provided, it can solve in law enforcement, to exist and evaporate inadequately shortcoming completely, reaches purpose of removing steam as much as possible.
According to technical scheme provided by the invention; Precooling evaporator; Comprising will be from the preliminary forecooler of lowering the temperature of the wet saturated air of air compressor machine; Carry out the moisture trap of gas-water separation with the evaporimeter of the air setting after the precooling with condensed air, said forecooler is provided with the dry air outlet;
It is characterized in that: said forecooler comprises the interconnective compressed air inlet and first air chamber; Between first air chamber and the 4th air chamber evaporimeter is set; Evaporimeter comprises fuse; The end of fuse is installed moisture trap, and moisture trap comprises demister, second air chamber and the 3rd air chamber; The 4th air chamber connects compressed air outlet, and demister is covered by in the 3rd air chamber, and second air chamber is installed on the upper right side of fuse;
Demister links to each other with the 3rd air chamber; The lower end of the 3rd air chamber is equipped with valve, and the fuse lower end also is provided with refrigerant inlet and refrigerant outlet.
Be provided with the interval that fuse is divided into flow chamber and cool room in the fuse of said evaporimeter, communicate between two Room, also be provided with number plate on the fuse, the left side is provided with screw.
Said demister by silk screen, silk screen grid form the silk screen piece and fixedly the bracing or strutting arrangement of silk screen piece constitute, said demister communicates with fuse.
Said cold-producing medium gets into fuse by refrigerant inlet, gets into the pipeline in the fuse subsequently, flows out from refrigerant outlet.
The present invention has following advantage: the present invention adopts refrigerant cools compressed air, and the drying air temperature of eliminating is remained unchanged basically, and it can solve in law enforcement, to exist and evaporate inadequately shortcoming completely, reaches purpose of removing steam as much as possible.
Description of drawings
Fig. 1 structural front view of the present invention.
Fig. 2 structure vertical view of the present invention.
Fig. 3 structure left view of the present invention.
Description of reference numerals: 1, air intake, 2, air outlet slit, 31, first air chamber, 32, second air chamber; 33, the 3rd air chamber, the 34, the 4th air chamber, 5, number plate, 6, refrigerant outlet; 7 refrigerant inlets, 8, valve, 9, demister, 10, screw.
The specific embodiment
Shown in Fig. 1-3; Precooling evaporator; Comprising will be from the forecooler of the preliminary cooling of the wet saturated air of air compressor machine, carries out the moisture trap of gas-water separation with the evaporimeter of the air setting after the precooling with condensed air, and said forecooler is provided with the dry air outlet;
Said forecooler comprises the interconnective compressed air inlet 1 and first air chamber 31; Between first air chamber 31 and the 4th air chamber 34 evaporimeter is set; Evaporimeter comprises fuse 4; The end of fuse 4 is installed moisture trap, and moisture trap comprises demister 9, second air chamber 32 and the 3rd air chamber 33; The 4th air chamber 34 connects compressed air outlet 2, and demister 9 is covered by in the 3rd air chamber 33, and second air chamber 32 is installed on the upper right side of fuse 4;
Be provided with the interval that fuse 4 is divided into flow chamber and cool room in the fuse 4 of said evaporimeter, communicate between two Room, also be provided with number plate 5 on the fuse 4, the left side is provided with screw 10.
Said demister 9 by silk screen, silk screen grid form the silk screen piece and fixedly the bracing or strutting arrangement of silk screen piece constitute, said demister 9 communicates with fuse 4.
Said cold-producing medium gets into fuse 4 by refrigerant inlet 7, gets into the pipeline in the fuse 4 subsequently, flows out from refrigerant outlet 6.
During work; 45 ℃ compressed air gets into first air chamber by air intake 1; Get into fuse subsequently, through the cold-producing medium that is got into by refrigerant inlet 7 steam is cooled off, fine drop is separated through the demister in the moisture trap in the cooling back; Continued to get into the 4th air chamber 34 by pipeline through second air chamber 32 and the 3rd air chamber 33 backs, the temperature of final drying air is 43 ℃ more.
Claims (4)
1. precooling evaporator comprises the forecooler from the preliminary cooling of wet saturated air of air compressor machine, carries out the moisture trap of gas-water separation with the evaporimeter of the air setting after the precooling with condensed air, and said forecooler is provided with the dry air outlet; It is characterized in that: said forecooler comprises interconnective compressed air inlet (1) and first air chamber (31); Between first air chamber (31) and the 4th air chamber (34) evaporimeter is set; Evaporimeter comprises fuse (4); The end of fuse (4) is installed moisture trap, and moisture trap comprises demister (9), second air chamber (32) and the 3rd air chamber (33); The 4th air chamber (34) connects compressed air outlet (2), and demister (9) is covered by in the 3rd air chamber (33), and second air chamber (32) is installed on the upper right side of fuse (4);
Demister (9) links to each other with the 3rd air chamber (33); The lower end of the 3rd air chamber (33) is equipped with valve (8), and fuse (4) lower end also is provided with refrigerant inlet (7) and refrigerant outlet (6).
2. according to the said precooling evaporator of claim 1; It is characterized in that: be provided with the interval that fuse (4) is divided into flow chamber and cool room in the fuse of said evaporimeter (4); Communicate between two Room, also be provided with number plate (5) on the fuse (4), the left side is provided with screw (10).
3. according to the said precooling evaporator of claim 1, it is characterized in that: said demister (9) by silk screen, silk screen grid form the silk screen piece and fixedly the bracing or strutting arrangement of silk screen piece constitute, said demister (9) communicates with fuse (4).
4. according to the said precooling evaporator of claim 1, it is characterized in that: said cold-producing medium gets into fuse (4) by refrigerant inlet (7), gets into the pipeline in the fuse (4) subsequently, flows out from refrigerant outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103636284A CN102423607A (en) | 2011-11-16 | 2011-11-16 | Precooling evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103636284A CN102423607A (en) | 2011-11-16 | 2011-11-16 | Precooling evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102423607A true CN102423607A (en) | 2012-04-25 |
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ID=45957688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103636284A Pending CN102423607A (en) | 2011-11-16 | 2011-11-16 | Precooling evaporator |
Country Status (1)
| Country | Link |
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| CN (1) | CN102423607A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401788Y (en) * | 2000-01-27 | 2000-10-18 | 溧阳市河海起重设备有限公司 | Precooling evaporator |
| US20070151276A1 (en) * | 2006-01-04 | 2007-07-05 | Flatplate, Inc. | Gas-drying system |
| CN101564639A (en) * | 2009-05-22 | 2009-10-28 | 浙江工业大学 | Integrated-type precooling evaporator of freeze drier |
| CN202356001U (en) * | 2011-11-16 | 2012-08-01 | 无锡马山永红换热器有限公司 | Pre-cooling evaporator |
-
2011
- 2011-11-16 CN CN2011103636284A patent/CN102423607A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401788Y (en) * | 2000-01-27 | 2000-10-18 | 溧阳市河海起重设备有限公司 | Precooling evaporator |
| US20070151276A1 (en) * | 2006-01-04 | 2007-07-05 | Flatplate, Inc. | Gas-drying system |
| CN101564639A (en) * | 2009-05-22 | 2009-10-28 | 浙江工业大学 | Integrated-type precooling evaporator of freeze drier |
| CN202356001U (en) * | 2011-11-16 | 2012-08-01 | 无锡马山永红换热器有限公司 | Pre-cooling evaporator |
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Application publication date: 20120425 |