CN201187828Y

CN201187828Y - Solar energy air heating apparatus

Info

Publication number: CN201187828Y
Application number: CNU2008200119970U
Authority: CN
Inventors: 陈晓宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-08
Filing date: 2008-04-08
Publication date: 2009-01-28
Anticipated expiration: 2018-04-08

Abstract

The utility model belongs to solar-energy air heating equipment, relating to a solar-energy air heating device which consists of a flat heat collector with a heat absorbing board inside and a transparent cover board covered at the top of an outer shell. The solar-energy air heating device is characterized in that the top at one side of the outer shell of the flat heat collector is connected with the air inlet of a blower through a pipeline; the air outlet of the blower is connected with a vacuum tube heat collector which is composed of an outer tube, an inner tube, a plating film vacuum tube, a heat preservation layer and a current guide pipe through a pipeline. The vacuum tube heat collector is communicated with the part that needs heating or is connected with a device that needs heat energy through a hot-air outputting pipe. The tail ends of the flat heat collecting device and the hot-air outputting pipe are both provided with thermoscopes composed of a temperature probe, a temperature controlling apparatus and electrical wires. The utility model has reasonable design, compact structure, and thus the hot air with a primary low temperature is changed into the hot air with a medium temperature through secondary heating, and the utility model also has the advantages of high efficiency of collecting heat, long time effect, controllability, adjustability, safe operation, wide application, and the like.

Description

The solar air heater

Technical field

The utility model belongs to the solar air firing equipment, particularly a kind of solar air heater.

Background technology

Solar energy industry develops rapidly in recent years, mainly concentrates on two general orientation: solar photovoltaic utilization and solar thermal utilization.Wherein the industrialization process of solar thermal utilization is also very well, and sign is exactly the universal use of solar water heater.The solar thermal utilization system of the air working medium of another big class is slower development then.In fact, system compares with water conservancy project matter, and the air working medium system still has many advantages: counterglow intensity reflects sensitivity, system's investment property height little, safe and reliable to operation, maintenance cost are low etc.Therefore can play good replenishing even substitution effect to the hot water engineering system in a lot of fields.

Present existing air working medium solar thermal system product is based on plate air collector, but that plate air collector has is various.A kind of plate air collector that market is common, by the metal absorber plate that is coated with selective absorbing coating, transparent cover plate and shell three parts are formed, shell is the cuboid of bottom surface sealing, end face covers transparent cover plate, the alternate metal absorber plate of middle part installing emboss pit in the shell, be distributed with the following chase of arrangement on the male and female face of metal absorber plate, the two ends of chase are equipped with and penetrate minute aperture under each, have air inlet on one side of the shell between transparent cover plate and the absorber plate, with the corresponding venthole that has of air inlet, realize providing function by the hot-air after the solar energy heating.But, cause its result of use and application all to be subjected to very big restriction because plate air collector all has following shortcoming and defect part:

1, heating efficiency is limited: keep under the normal air flow condition, the heat-collecting temperature of various flat plate collectors can be higher than between the environment temperature 20-40 degree, sooner or later under the situation that period and sunshine condition are general, the temperature rise amplitude can only reach the level of degree more than 10, and so the low temperature and the thermal efficiency is difficult to effectively satisfy the lasting requirement of aspects such as winter heating and agricultural product drying.

2, the dewfall situation is serious on the transparent cover plate internal face, in case indoor air humidity is too high, when temperature is low especially all the time according to night because temperature is low, will condense into dew or frost layer on the transparent cover plate internal face, the initial stage at sunshine by day of causing influences the operate as normal of heat collector.

Summary of the invention

The utility model is intended to the shortcoming and defect part that exists in above-mentioned technology, and provide not only reasonable in design, compact conformation, first grade low-temp hot-air is passed through post bake, be converted into middle warm air, and have that collecting efficiency height, timeliness are long, controllable, handling safety, widely used a kind of solar air heater.

The purpose of this utility model is to adopt following technical scheme to realize: the cover top portion of dress absorber plate covers the flat plate collector of transparent cover plate in comprising, it is characterized in that: a side or bottom surface at the shell of flat plate collector are connected with the air inlet of blower fan with pipeline, the air outlet of blower fan is connected with the vacuum tube heat collector with pipeline, and the vacuum tube heat collector is communicated with the hot gas efferent duct or with the place that needs heating or is communicated with the device that needs heat energy and joins; Be provided with thermal detector in flat plate collector and hot gas efferent duct end.

Described vacuum tube heat collector is made up of outer tube, interior pipe, plated film vacuum tube, heat-insulation layer and mozzle, the port of export of airduct connects an end of outer tube, cover on the outer circumference surface of outer tube and be surrounded by heat-insulation layer, pipe in the installing in outer tube, an end of duct occlusion places in the pipe and towards the port of export of airduct, the other end of interior pipe stretches outside outer tube in making; Distributing on the pipeline section bottom surface of the interior pipe in being in outer tube is connected with several mozzles, corresponding with position, shape, the size of each mozzle, is connected with the plated film vacuum tube that holds mozzle on outer tube.According to the design needs, some plated film vacuum tubes can be installed, but at least more than two.

Described shell, its bottom surface or be provided with base plate or uncovered when bottom surface when being uncovered, adopts between its bottom surface and the joint face to be tightly connected.

When described hot gas efferent duct is communicated with the place that needs heating, be in the hot gas output pipe end installing hot gas case in the heating place.

Described thermal detector is made up of temp probe, temperature controller and electric wire, all install temp probe in flat plate collector bottom surface and hot gas efferent duct end, each temp probe joins with electric wire and temperature controller respectively, and temperature controller can be installed in the visual place that adapts with heater; Its temperature controller can be controlled the unlatching of blower fan automatically and stops according to the temperature value of design, and the air quantity of Frequency Converter Control blower fan can also be installed.By adjusting the effect that rotation speed of fan reaches control air quantity size of the present utility model.

Cover on the excircle of described each pipeline and hot gas efferent duct and be surrounded by heat-insulation layer.

Principle of the present utility model and operation are described below: the utility model after sunshine passes transparent cover plate, is radiated on the absorber plate when operation, is absorbed by absorber plate and change into heat energy to be used to add hot-air.Air enters interlayer between transparent cover plate and the absorber plate by the air admission hole that has on the shell, pass the aperture on the absorber plate then, moment is by after the absorber plate heating, enter the interlayer between absorber plate and backboard or the metope, enter air duct by venthole again and continue to be conveyed into the second portion device by blower fan.After hot gas entered outer tube by openend, shunting entered the interbed between plated film vacuum tube and the mozzle, and the plated film vacuum tube absorbs solar radiation hot-air is heated once more.Hot-air enters mozzle after arriving plated film vacuum tube bottom, in the pipe, sends into indoor or other application apparatus by the openend of interior pipe at last in coming together in via mozzle.The utility model preheats characteristics and the abundant combination of efficient heating efficiency of coating film on glass vacuum tube collector entirely with the big air quantity air of flat plate collector, has overcome the too small shortcoming of low temperature, poor efficiency or air quantity of all air working medium solar energy heating products in the past.Through experiment test, as long as under the situation of the faint irradiation of sunlight, this device can produce and satisfy the capacity hot-air that the heating minimum temperature requires.And under sunshine good situation, low warm air in the big flow then can be provided, after adopting attemperating unit control start-up time and temperature, indoor heating in the winter time, the agricultural product and the drying of wood, sea-farming, multi-field wide application space, the greatly energy savings of having such as booth heating.Combine the above technical measures of being taked, realize the purpose of this utility model.

Compared with prior art, the utility model is not only reasonable in design, and compact conformation by post bake, is converted into middle warm air with first grade low-temp hot-air, and has that collecting efficiency height, timeliness are long, controllable, handling safety, advantage such as is widely used.

Description of drawings

The utility model has three width of cloth accompanying drawings.Wherein:

Accompanying drawing 1 is the main TV structure schematic diagram of one of embodiment of the present utility model.

Accompanying drawing 2 is main TV structure schematic diagrames of two of embodiment of the present utility model;

Accompanying drawing 3 is side views of Fig. 2.

Among the figure: 1, shell, 2, pipeline, 3, blower fan, 4, the hot gas efferent duct, 5, outer tube, 6, interior pipe, 7, hot gas case, 8, temp probe, 9, the plated film vacuum tube, 10, temperature controller, 11, air inlet, 12, transparent cover plate, 13, absorber plate, 14, base plate, 15, mozzle, 16, heat-insulation layer.

The specific embodiment

Shown in Figure 1 is one of embodiment of the present utility model, and it is to be provided with base plate 14 in the bottom of flat plate collector shell 1, is used for the solar air heater that indoor heating is used; Its structure is the flat plate collector that shell 1 top of interior dress absorber plate 13 covers transparent cover plate 12, it is characterized in that: the side roof part at flat plate collector is connected with the air inlet of pipeline 2 with the blower fan 3 that adopts frequency converter, the air outlet of blower fan 3 is with pipeline 2 and by outer tube 5, interior pipe 6, four plated film vacuum tubes 9, heat-insulation layer 16 is connected with the vacuum tube heat collector that mozzle 15 is formed, the vacuum tube heat collector is communicated with the household that needs heating is indoor with hot gas efferent duct 4, be on indoor hot gas efferent duct 4 ends of household installing hot gas case 7, be provided with by temp probe 8 in the end of flat plate collector bottom surface and hot gas efferent duct 4, the thermal detector that temperature controller 10 and electric wire are formed; Its temperature controller 10 can be controlled the unlatching of blower fan 3 automatically and stops according to the temperature value of design, and the air quantity of Frequency Converter Control blower fan 3 can also be installed; Cover on the excircle of described each pipeline 2 and hot gas efferent duct 4 and be surrounded by heat-insulation layer 16.

Fig. 2 and shown in Figure 3 be two of embodiment of the present utility model, it is to be uncovered in the bottom of flat plate collector shell 1, is installed on the building exterior wall face, is used for the timber in the drying shed is carried out dry solar air heater; 8 plated film vacuum tubes 9 are housed in the vacuum tube heat collector, and the vacuum tube heat collector joins to be communicated with in hot gas efferent duct 4 and the drying shed.All the other are identical with one of embodiment.

The above; it only is the preferable specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; all are familiar with those skilled in the art in the disclosed technical scope of the utility model, are equal to replace or change according to the technical solution of the utility model and design of the present utility model thereof all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of solar air heater, shell (1) top of dress absorber plate (13) covers the flat plate collector of transparent cover plate (12) in comprising, it is characterized in that: a side or bottom surface at the shell (1) of flat plate collector are connected with the air inlet of pipeline (2) with blower fan (3), the air outlet of blower fan (3) is connected with the vacuum tube heat collector with pipeline (2), and the vacuum tube heat collector is communicated with hot gas efferent duct (4) or with the place that needs heating or is communicated with the device that needs heat energy and joins; Be provided with thermal detector in flat plate collector and hot gas efferent duct (4) end.

2, by the described solar air heater of claim 1, it is characterized in that: described vacuum tube heat collector is made up of outer tube (5), interior pipe (6), plated film vacuum tube (9), heat-insulation layer (16) and mozzle (15), the port of export of airduct (2) connects an end of outer tube (5), cover on the outer circumference surface of outer tube (5) and be surrounded by heat-insulation layer (16), pipe (6) in the installing in outer tube (5), one end of interior pipe (6) sealing is placed in the pipe and towards the port of export of airduct (2), the other end of interior pipe (5) stretches outside outer tube (5); Distributing on the pipeline section bottom surface of the interior pipe (6) in being in outer tube (5) is connected with several mozzles (15), corresponding with position, shape, the size of each mozzle (15), is connected with the plated film vacuum tube (9) that holds mozzle (15) on outer tube (5).

3, by the described solar air heater of claim 1, it is characterized in that: described shell (1), its bottom surface or be provided with base plate (14) or uncovered when bottom surface when being uncovered, adopts between its bottom surface and the joint face to be tightly connected.

4, by the described solar air heater of claim 1, it is characterized in that: when described hot gas efferent duct (4) is communicated with the place that needs heating, be in hot gas efferent duct (4) the end installing hot gas case (7) in the heating place.

5, by the described solar air heater of claim 1, it is characterized in that: described thermal detector is made up of temp probe (8), temperature controller (10) and electric wire, all install temp probe (8) in flat plate collector bottom surface and hot gas efferent duct (4) end, each temp probe (8) uses electric wire and temperature controller (10) to join respectively, and temperature controller (10) can be installed in the visual place that adapts with heater; Its temperature controller (10) can be controlled the unlatching of blower fan (3) automatically and stops according to the temperature value of design, and the air quantity of Frequency Converter Control blower fan (3) can also be installed.

6, by the described solar air heater of claim 1, it is characterized in that: cover on the excircle of described each pipeline (2) and hot gas efferent duct (4) and be surrounded by heat-insulation layer (16).