CN203907752U - Indoor solar and electric heating warmer - Google Patents
Indoor solar and electric heating warmer Download PDFInfo
- Publication number
- CN203907752U CN203907752U CN201420243078.1U CN201420243078U CN203907752U CN 203907752 U CN203907752 U CN 203907752U CN 201420243078 U CN201420243078 U CN 201420243078U CN 203907752 U CN203907752 U CN 203907752U
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- solar
- absorber plate
- plate
- solar absorber
- shell
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Abstract
The utility model provides an indoor solar and electric heating warmer and belongs to the technical field of solar energy utilization. The indoor solar and electric heating warmer comprises a shell, a solar absorber plate and an electric heating tube; the lower 2/3 part of the shell is inclined by 45 degrees, and an air inlet is formed in the bottom of the shell, while an air outlet is formed in the top of the shell; the solar absorber plate is arranged inside the inclined part of the shell; a glass cover plate parallel to the solar absorber plate is arranged above the solar absorber plate, a space is formed between the solar absorber plate and the glass cover plate, and an air inlet baffle plate is arranged under the solar absorber plate; a space is also formed between the solar absorber plate and the shell; the electric heating tube is located above the solar absorber plate. An air inlet baffle plate is arranged on the air inlet of the upper space of the solar absorber plate, while an air inlet is formed in the lower space of the solar absorber plate. The indoor solar and electric heating warmer is capable of effectively utilizing the heat energy collected by the solar absorber plate, thereby realizing photoelectric complementary, energy conservation and environmental protection in combination a certain quantity of electric energy. The indoor solar and electric heating warmer is mainly used for indoor heating.
Description
Technical field
The utility model belongs to technical field of solar utilization technique, particularly heat conduction and thermal convection current efficiency utilize technology.
Background technology
At present, in southern winter, the small-sized area such as dormitory, personal office place does not generally have air-conditioning or heating installation can supply heating, in order to improve indoor temperature, can only use the electric radiation warmer that the power consumption such as Sunny are high, consumed a large amount of electric energy, if accumulation is got up, its consumption is a googol.And picture warm braw convective warmer, although relative energy-saving, price comparison is high, and applicable area is also larger, is not too suitable for small-sized room.And in room no one, this solar energy warmer still improves room temperature in work, does not substantially consume electric energy, the problem that it need to solve is energy-conserving and environment-protective, raising heat transfer efficiency.In addition, in indoor this field, substantially also there is no this solar utilization technique, compared to outdoor use solar energy, it installs and uses more convenient.
Practical fresh content
The purpose of this utility model is to provide a kind of indoor solar energy and electric heater, and it can realize indoor air convection heat transfer effect effectively.
The purpose of this utility model is realized by following technical scheme: a kind of indoor solar energy and electric heater, comprise shell, solar absorber plate and electric heating tube, 2/3rds of shell below is 45 ° of inclinations, bottom arranges air inlet, top sets out air port, and solar absorber plate is placed in the inside of shell sloping portion, and top is provided with the glass cover-plate parallel with solar absorber plate, between solar absorber plate and glass cover-plate, be provided with space, bottom is provided with air inlet baffle plate; Between solar absorber plate and shell, be also provided with space, electric heating tube is positioned at solar absorber plate top.
The air inlet of described solar absorber plate upper space is provided with air inlet baffle plate, and the space of bottom is provided with air inlet, and this air inlet is set to jet orifice, upsets Air Flow, improves heat convection effect.Solar absorber plate bottom is entered cold wind and is first passed through solar absorber plate preheating, then forms hot blast through electric heater for heating, effectively saves electric energy.
Described solar absorber plate is V-type plate.
Shell and the solar absorber plate of described electric heating tube are integrated, and adopt vertical spatial placement, and are provided with simple temperature-sensitive sensing temperature measurement circuit, utilize sensor measurement absorber plate temperature, rationally control electric heating tube switch.In pipe, hot-air forms hot pressing with pipe is outer compared with cold air, drives air current flow as power.
The indoor solar energy of the utility model and electric heater are applicable to the small size rooms such as south dormitory in winter, personal office, can be people comfortable temperature was provided in cold winter.This indoor solar energy and electric heater can be in indoor nobody preheating room, and without power consumption; Indoor have people in, through before preheating, opening power just can provide more comfortable warm braw.Overcast and rainy in cold, heats by electric heating tube original paper, still can ensure indoor comfortable.The indoor solar energy of the utility model and electric heater simplicity of design, novel structure, easy to use, the heat energy that effectively utilizes collecting plate to gather, coordinates a certain amount of electric energy, realizes light-electricity complementary, energy-conserving and environment-protective.
Advantage compared with prior art and effect: calculate and the utlity model has certain energy-saving effect through theory.
Brief description of the drawings
Fig. 1 is the utility model cross sectional representation
Fig. 2 is the utility model front view
Fig. 3 is the utility model V-type plate structural representation
Fig. 4 is the utility model jet orifice structural representation
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of indoor solar energy and electric heater, comprise shell 6, solar absorber plate 3 and electric heating tube 7,2/3rds of shell 6 belows are 45 ° of inclinations, bottom arranges air inlet 4, top sets out air port 5, and solar absorber plate 3 is placed in the inside of shell sloping portion, and top is provided with the glass cover-plate parallel with solar absorber plate 32, between solar absorber plate 3 and glass cover-plate 2, be provided with space, bottom is provided with air inlet baffle plate 1; Between solar absorber plate 3 and shell 6, be also provided with space, electric heating tube 7 is positioned at solar absorber plate 3 tops.
The air inlet of described solar absorber plate 3 upper spaces is provided with air inlet baffle plate 1, and the space of bottom is provided with air inlet 4.
Described solar absorber plate 3 is V-type plate.
Sunshine sees through glass cover-plate 2 and is radiated at solar absorber plate 3, scribbles heat absorbing coating on absorber plate, and coating absorbs solar energy raises aluminium sheet temperature.Air impacts V-type absorber plate by the jet orifice 4 in air inlet baffle plate 1 and fluidic plate, and then makes absorber plate heat pass to air.Air expanded by heating, in the process of upwards circulation, through the post bake of electric heater 7, again utilizes hot pressing to make hot-air pass through air outlet baffle plate 5 and flows out, and realizes the heat convection with room air.Electric heater part, is provided with simple temperature-sensitive sensing temperature measurement circuit, utilizes sensor test absorber plate temperature, rationally controls the switch of electric heating tube.Entirety is supported to fix by bracing frame 8.
1. the theoretical analysis and calculation of this warmer performance.Process is mainly divided into two large divisions:
(1) the heat transfer free convection of solar energy heat absorbing plate portion is calculated: look into the solar radiation amount of having got southern area winter by gathering information, as known parameters, as the solar radiation parameter list (summary) of typical urban
The monthly average day irradiation that can draw middle part and southern areas horizontal plane December is 8MJ/ (m
2d), the sunshine hour number of monthly average every day in December is 4.8h.Draw thus intensity of solar radiation in December
I＝H
ht÷S
d＝8×10
6÷4.8÷3600＝463W/m
2
Wherein: H
ht: the monthly average day irradiation in horizontal plane December, MJ/ (m
2d)
S
d: the sunshine hour number of monthly average every day in December, h
If the technical parameter of V-type plate adopting: length is that 800mm, width are 400mm, highly are that 40mm, thickness 2mm, drift angle angle are 90 °
Adopt to simplify and calculate, V-type plate free convection is considered as the permanent hot-fluid heat transfer free convection of plane surface
V-type plate receives solar radiation area A
1=0.8 × 0.4=0.32m
2
V-type plate gross area A
2=0.45255m
2
Room windowpane transmissivityτ
1=0.9
Solar energy glass cover plate transmissivityτ
2=0.9
Absorber plate absorptance α=0.9
Therefore V-type plate absorbs solar radiation Q=I × τ
1× τ
2× α × A
1=463 × 0.9 × 0.9 × 0.9 × 0.32=108W
V-type plate heat flow density
Room air initial temperature t
∞=8 DEG C
Due to V-type plate wall temperature t
wthe unknown, characteristic temperature t
mimpact on air physics value is less, so the desirable t of characteristic temperature
m=10 DEG C, the physics value of air at reference feature temperature;
The permanent hot-fluid free convection of inclination plane surface characteristic correlation is:
Laminar flow [(Gr
*pr)
m=10
5～10
11]
Turbulent flow [10
16> (Gr
*pr)
m>2 × 10
13]
Wherein grashof number is
(θ is V-type plate inclination angle, α
vfor volume expansion coefficient
Anger Sai Er number
prandtl number P
r=0.705
(Gr
*·Pr)
m＝4.756×10
11×0.705＝3.353×10
11
Illustrate that flow regime belongs to laminar flow
Convection transfer rate
Due to the unknown of V-type plate wall surface temperature, can first suppose wall surface temperature t
w=50 DEG C
Therefore heat transfer free convection amount Q=hA Δ t=3.8 × 0.45255 × (50-8)=72.23W
(2) heat exchange of electric heater part is calculated:
According to the south climatic environment in winter, in apyrogenic situation, indoor temperature only has 5 DEG C-10 DEG C, and we plan indoor temperature and bring up to 16 DEG C of left and right.
According to above analysis, choose the electric heater of P=1000W power, the heat exchange efficiency of electric heater and air is got η=80%.
Therefore the heat of electric heater actual transfer air is
Q
2＝P*η＝1000*80％＝800W。
Aggregate analysis is as follows:
The heat that air obtains after this device is
Q＝Q
1+Q
2＝72.23+800＝872.23W
For general small office area A=15m
2, can calculate the heat that needs to provide 15 × 60=900W by the every square meter 60W of thermic load for improving indoor comfort degree.This device can provide the heat of 872W, the basic satisfied requirement that improves indoor comfort degree.
If only adopt electrical heating to improve indoor comfort degree, heat exchange efficiency is calculated by 80% equally, in the situation that 872W heat is provided, needs to consume electric energy 872 ÷ 0.8=1090W.
This device consumes electric energy 1000W in the situation that 872W heat is provided.
So this device can be saved the electric energy of 90W.
Therefore finally save efficiency be
Therefore the utlity model has energy-saving effect.
Claims (3)
1. an indoor solar energy and electric heater, comprise shell (6), solar absorber plate (3) and electric heating tube (7), it is characterized in that: 2/3rds of shell (6) below is 45 ° of inclinations, bottom arranges air inlet (4), top sets out air port (5), solar absorber plate (3) is placed in the inside of shell sloping portion, top is provided with the glass cover-plate (2) parallel with solar absorber plate (3), between solar absorber plate (3) and glass cover-plate (2), be provided with space, bottom is provided with air inlet baffle plate (1), between solar absorber plate (3) and shell (6), be also provided with space, electric heating tube (7) is positioned at solar absorber plate (3) top.
2. the indoor solar energy of one according to claim 1 and electric heater, it is characterized in that: the air inlet of described solar absorber plate (3) upper space is provided with air inlet baffle plate (1), and the space of bottom is provided with air inlet (4).
3. the indoor solar energy of one according to claim 1 and electric heater, is characterized in that: described solar absorber plate (3) is V-type plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243078.1U CN203907752U (en) | 2014-05-13 | 2014-05-13 | Indoor solar and electric heating warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243078.1U CN203907752U (en) | 2014-05-13 | 2014-05-13 | Indoor solar and electric heating warmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203907752U true CN203907752U (en) | 2014-10-29 |
Family
ID=51782023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243078.1U Expired - Fee Related CN203907752U (en) | 2014-05-13 | 2014-05-13 | Indoor solar and electric heating warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203907752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287921A (en) * | 2016-11-07 | 2017-01-04 | 艾科尔新能源科技有限公司 | A kind of solar photoelectricity complementation heat collector and heating method thereof |
-
2014
- 2014-05-13 CN CN201420243078.1U patent/CN203907752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287921A (en) * | 2016-11-07 | 2017-01-04 | 艾科尔新能源科技有限公司 | A kind of solar photoelectricity complementation heat collector and heating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20170513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |