CN202041045U

CN202041045U - Natural energy drying equipment with cooling fin heat exchanger

Info

Publication number: CN202041045U
Application number: CN2011201274072U
Authority: CN
Inventors: 冯益安
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-21
Filing date: 2011-04-21
Publication date: 2011-11-16
Anticipated expiration: 2021-04-21

Abstract

The utility model relates to natural energy drying equipment with a cooling fin heat exchanger, which belongs to the field of energy saving and drying. At present, the vacuum drying technology needs a large number of energy consumption, for example, some need electricity to heat, some need steam, some need fuel coal or fuel oil, and some need solar energy, in a word, the overall consumed energy of the drying industry is huge, and the natural energy drying equipment with the cooling fin heat exchanger just utilizes natural energy to solve the problem of energy consumption in the drying. The heat exchanger is additionally arranged to absorb the wasted heat source of the natural world, wherein the heat source includes the air in normal pressure and temperature, the tap water, the wasted heat of industries and the like in the natural world. In the natural energy drying equipment with the cooling fin heat exchanger, the added heat exchanger is an air cooling fin with big area, the air cooling fin is in big-area contact with air inside and outside a vacuum container respectively, or a set of medium circulating pipes run through an inner cavity of the vacuum container to achieve the aim of fast heat exchanging, the medium circulating pipes are the metal circulating pipes that are connected in series, and air or water can be filled into the pipes. As the heat conversion efficiency in the mode is higher, no conversional energy is consumed; the natural energy drying equipment with the cooling fin heat exchanger is a real energy-saving type drying device and keeps the advantage of fast drying of a vacuum dryer.

Description

A kind of natural energy drying equipment with radiating fin heat exchanger

Technical field: energy-saving drying

Background technology:

The vacuum drying technique rate of drying is fast, power consumption is big, equipment cost is high, end product quality is high.

Summary of the invention:

Vacuum drying technique needs a large amount of power consumptions at present, such as have need electrical heating, the needs fire coal that needs steam, has that has or fuel oil, have need solar energy, the whole power consumption of dry in a word industry is huge, when being water evaporates, reason can draw a large amount of heats, vacuum drying has solved the dry speed and the quality problems of dry finished product, but still can not reduce for power consumption.The present invention is exactly the substitution problem that solves conventional energy resource in the drying.

Summary of the invention is: draw natural discarded thermal source by increasing a heat exchanger, comprise natural normal temperature and pressure air, normal temperature running water, the discarded waste heat of factory etc.When the vacuum tank internal pressure is lower than normal pressure, temperature in the vacuum tank is lower than the temperature of ambient atmosphere, the big more temperature difference of pressure differential is just big more, as long as the heat exchanger that increases to vacuum tank has enough heat exchange areas, just can from surrounding air, absorb heat fully and reach rapid evaporation and quick-drying purpose, therefore the heat exchanger of the present invention's increase is the large tracts of land air-cooling fin, and described fin contacts with the air large tracts of land respectively at the inside and outside of vacuum tank.Because this mode thermal transition efficient is higher, does not consume conventional energy resource, is real energy-saving drying device, keeping vacuum desiccator simultaneously can quick-drying advantage.

Description of drawings

Accompanying drawing 1 is for having the natural energy drier easy structure schematic diagram of fin device.Wherein 1, vacuum tank inner chamber; 2, baking zone; 3, air exhauster; 4, Pressure gauge; 5, equilibrated valve; 6, fin.

The specific embodiment

Once illustrate in conjunction with the accompanying drawings:

Fig. 1 is structural framing figure, comprise the fin (6) on vacuum tank (1), baking zone (2), air exhauster (3), Pressure gauge (4), balanced valve (5) and the shell, wherein the ratio of cavity pressure and ambient pressure is generally less than 100 in the vacuum tank, is far smaller than " vacuum " degree of conventional vacuum container.Wherein said air exhauster power power under the condition that vacuumizes with specific volume is less, so that reach balance for a short time at less power, such as 50W, 100W, 200W etc.The effect of balanced valve (5) is to limit the force value of vacuum lumen (1), and pressure difference value is too big, and balanced valve is opened, and purpose is to allow the interior sudden changes in pressure of vacuum lumen (1) cause the explosion of drying article too greatly.The effect of shell and fin (6) is to support and heat exchange.

Fig. 1 is the natural energy drying equipment easy structure schematic diagram with fin.Usually do not having under the situation of heat exchanger, as long as air exhauster (3) operation, pressure in the vacuum lumen (1) reduces, temperature reduces, nature can absorb heat by the vacuum tank wall, impel the water evaporates of vacuum inner drying article, but the heat transfer rate is slow for the vacuum tank wall, can influence drying rate, so need add fin shown in Figure 1 (6), fin (a 6) part embeds in the vacuum lumen (1), a part is exposed in the air, and in vacuo the partial function in chamber (1) is " heat radiation ", is exposed to airborne partial function and is " heat absorption ", promptly absorb airborne heat, if fin is placed on the heat that just absorbs in the water in the water.This dryer is placed on and indoorly can reduces indoor temperature summer, plays the air-conditioning effect.

Metallic support in fin and the vacuum tank is connected, and is convenient to heat conduction and heat exchange rapidly.

Claims

1. the natural energy drying equipment with radiating fin heat exchanger is a kind of low-pressure energy-saving drying, comprise vacuum tank, vavuum pump, heat exchanger and heating power source, it is characterized in that: vavuum pump replaces with general air exhauster, heat exchanger is air-cooling fin or circulation pipe, and the heating power source is from natural normal temperature and pressure air or normal temperature running water or discarded thermal source.

2. a kind of natural energy drying equipment according to claim 1 with radiating fin heat exchanger, wherein heat exchanger is a fin partly, it is characterized in that the part of fin embeds in the vacuum lumen (1), is connected with metallic support, another part is exposed in the air, carries out heat exchange with atmosphere.

3. a kind of natural energy drying equipment with radiating fin heat exchanger according to claim 1, air exhauster (3) power resources are in wind-force.

4. a kind of natural energy drying equipment with radiating fin heat exchanger according to claim 1, it is indoor as " air-conditioning " use that reduces indoor air temperature to it is characterized in that be placed on drying equipment summer.