CN207455808U - Radiation air-conditioner refrigeration system - Google Patents
Radiation air-conditioner refrigeration system Download PDFInfo
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- CN207455808U CN207455808U CN201721361685.8U CN201721361685U CN207455808U CN 207455808 U CN207455808 U CN 207455808U CN 201721361685 U CN201721361685 U CN 201721361685U CN 207455808 U CN207455808 U CN 207455808U
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Abstract
The utility model discloses a kind of radiation air-conditioner refrigeration system, the radiation air-conditioner refrigeration system includes radiation cold plate and the low-temperature receiver for providing chilled water to the radiation cold plate；The radiation cold plate includes heat exchanger components and thermal resistance transmittance plate；The one side of the thermal resistance transmittance plate is attached at the surface of the heat exchanger components；The material that the transmitance for the heat radiation that the thermal resistance transmittance plate is 9~11 μm by thermal conductivity factor in the range of 0.02~0.2W/mK and to wavelength is more than 50% is formed.The radiation air-conditioner refrigeration system of the utility model can avoid air-conditioning radiation cold plate from condensing, and improve heat exchange efficiency.
Description
Technical field
The utility model is related to filed of air conditioning, more particularly to radiation air-conditioner refrigeration system.
Background technology
In radiation air-conditioner refrigeration system, radiation cold plate and indoor human body based on radiation heat transfer, therefore thermal comfort compared with
It is good, it gradually attracts attention in recent years.To avoid the surface sweating that heat exchanger plates are contacted with room air, it is necessary to maintain the table of heat exchanger plates
(about 18~20 DEG C) of face temperature higher than room air dew-point temperature (generally 14~17 DEG C), therefore in heat exchanger plates by chilled water
Temperature (generally 15~17 DEG C) traditional central air-conditioning freezing coolant-temperature gage (7 DEG C) should be significantly higher than, this cause heat exchanger plates with
The temperature difference of room air is smaller, so that the radiation cooling ability of heat exchanger plates cannot meet the refrigeration duty requirement of architecture indoor,
Therefore, when existing heat exchanger plates are applied to radiation air-conditioner refrigeration system, additional cooling equipment need to be coordinated to use, but cold supply system
Complicated and cost is high so that the development of air conditioner refrigerating technology is restricted with application.
Utility model content
The utility model proposes a kind of radiation air-conditioner refrigeration systems, can avoid radiation cold plate surface sweating, improve radiation and change
The thermal efficiency.
On the one hand the utility model provides a kind of radiation air-conditioner refrigeration system, the radiation air-conditioner refrigeration system includes radiation
Cold plate and the low-temperature receiver for providing chilled water to the radiation cold plate；
The radiation cold plate includes heat exchanger components and thermal resistance transmittance plate；The one side of the thermal resistance transmittance plate is attached at described change
The surface of thermal part；The thermal resistance transmittance plate in the range of 0.02~0.2W/mK and is 9~11 μm to wavelength by thermal conductivity factor
The material that the transmitance of heat radiation is more than 50% is formed.
In a kind of optional embodiment, the thermal resistance transmittance plate is by thermal conductivity factor in the range of 0.02~0.2W/mK
And be to wavelength 9~11 μm of heat radiation transmitance be more than 80% material formed.
In a kind of optional embodiment, the heat exchanger components include coil pipe and the heat exchange for being covered in the coil pipe both sides
Plate.
In a kind of optional embodiment, the thermal resistance transmittance plate is attached at the lower surface of the heat exchanger components.
In a kind of optional embodiment, the opposite side of the thermal resistance transmittance plate is contacted with room air.
In a kind of optional embodiment, the thickness of the thermal resistance transmittance plate is uniform.
In a kind of optional embodiment, the thickness of the thermal resistance transmittance plate by the thermal resistance transmittance plate heat conduction system
The convection transfer rate of several, the default thermal resistance transmittance plate and room air, the default heat exchanger components surface temperature,
The default thermal resistance transmittance plate contacts the temperature on surface with room air and the temperature of default room air determines；It is described
The temperature that default thermal resistance transmittance plate contacts surface with room air is higher than the room air dew-point temperature obtained in advance.
In a kind of optional embodiment, the thickness h of the thermal resistance transmittance plate is calculated by equation below：
Wherein, λ is the thermal conductivity factor of the thermal resistance transmittance plate；α is the convection transfer rate；t1For the default institute
State the surface temperature of heat exchanger components；t2The temperature on surface is contacted with room air for the default thermal resistance transmittance plate；t3For
The temperature of the default room air.
In a kind of optional embodiment, the radiation air-conditioner refrigeration system further includes transmission and distribution network and water pump.
In a kind of optional embodiment, the radiation cold plate, the low-temperature receiver and the water pump pass through the transmission ＆ distribution pipe
Net forms loop.
Compared with the prior art, the utility model has advantageous effect prominent as follows：The utility model provides one kind
Radiation air-conditioner refrigeration system, the radiation air-conditioner refrigeration system include radiation cold plate and for providing freezing to the radiation cold plate
The low-temperature receiver of water；The radiation cold plate includes heat exchanger components and thermal resistance transmittance plate；The one side of the thermal resistance transmittance plate is attached at described
The surface of heat exchanger components；The thermal resistance transmittance plate in the range of 0.02~0.2W/mK and is 9~11 μm to wavelength by thermal conductivity factor
Heat radiation transmitance be more than 50% material formed.Radiation cold plate provided by the utility model is transmitted by the thermal resistance
The one side of plate is attached at the surface of the heat exchanger components, and heat exchanger components is avoided to be contacted directly with air, due to forming the thermal resistance
The material of transmittance plate has the heat radiation of 9~11 μm of wavelength more than 50% transmitance, and high transmittance causes indoor airflow
Smaller be subject to being influenced with the radiation heat transfer of heat exchanger components, i.e., radiation cold plate is carried out the radiation between heat exchange object by heat exchanger plates
Heat exchange, has many advantages, such as that Radiant exothermicity is big, radianting capacity is strong, efficient；In addition, the radiating surface of heat exchanger components does not have and air
It contacts directly, forms the low thermal conductivity (0.02~0.2W/mK) of the material of the thermal resistance transmittance plate so that the heat exchanger components
Chilled water is maintained at lower temperature, the room air of heat exchanger components and outside on the inside of radiation cold plate generates the larger temperature difference,
While so that keeping lower temperature on the heat exchanger components surface and carrying out high efficient radiation heat exchange, radiation cold plate and room are kept
The temperature of interior air contacting surface is higher than room air dew-point temperature, so as to prevent heat exchanger plates from condensing, improves changing for radiation cold plate
Heating rate ensure that the safe and highly efficient operation of radiation air-conditioner refrigeration system, have spy simple in structure, technique integration degree is high
Point.
Description of the drawings
Fig. 1 is the module diagram for the radiation air-conditioner refrigeration system that the preferred embodiment in the utility model provides；
Fig. 2 is the structure diagram for the radiation cold plate that the preferred embodiment in the utility model provides；
Fig. 3 is the overlooking the structure diagram for the heat exchanger components that the preferred embodiment in the utility model provides.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained shall fall within the protection scope of the present invention.
In the explanation of the utility model, the description of the orientation such as upper, lower, left, right, front and rear and top and bottom is all
It is defined for Fig. 2, when the modes of emplacement of radiation cold plate changes, corresponding orientation and top and bottom
Description will also change according to the change of modes of emplacement, and this will not be repeated here for the utility model.
It is the module diagram for the radiation air-conditioner refrigeration system that the preferred embodiment in the utility model provides referring to Fig. 1；Institute
Stating radiation air-conditioner refrigeration system includes radiation cold plate 1 and the low-temperature receiver 3 for providing chilled water to the radiation cold plate 1；
It is the structure diagram for the radiation cold plate that the preferred embodiment in the utility model provides referring to Fig. 2；The radiation is cold
Plate 1 includes heat exchanger components 10 and thermal resistance transmittance plate 6；The one side of the thermal resistance transmittance plate 6 is attached at the table of the heat exchanger components 10
Face；The thermal resistance transmittance plate 6 in the range of 0.02~0.2W/mK and is 9~11 μm of heat radiation to wavelength by thermal conductivity factor
The material that transmitance is more than 50% is formed.
In the present embodiment, wavelength be 9~11 μm of heat radiation refer to indoor environment (18~28 DEG C of heaters, as wall,
Floor, indoor article etc.) and (about 36.5 DEG C) room temperature heat radiations emitted of human body；The low-temperature receiver is provides to the radiation cold plate
The equipment of arbitrary temp chilled water.
In a kind of optional embodiment, the radiation cold plate is made of heat exchanger components and thermal resistance transmittance plate.
In a kind of optional embodiment, the thermal conductivity factor in the range of 0.02~0.2W/mK and to wavelength for 9~
The material that the transmitance of 11 μm of heat radiation is more than 50% is PE materials.
The surface of the heat exchanger components is attached at by the one side of the thermal resistance transmittance plate, avoids heat exchanger components and air
It contacts directly, there is to the heat radiation of 9~11 μm of wavelength due to forming the material of the thermal resistance transmittance plate more than 50% transmission
Rate, high transmittance so that the influence that the radiation heat transfer of indoor airflow and heat exchanger components is subject to is smaller, i.e., radiation cold plate is by exchanging heat
Plate carries out the radiation heat transfer between heat exchange object, has many advantages, such as that Radiant exothermicity is big, radianting capacity is strong, efficient；In addition,
The radiating surface of heat exchanger components is not contacted directly with air, forms the low thermal conductivity (0.02 of the material of the thermal resistance transmittance plate
~0.2W/mK) so that chilled water is maintained at lower temperature by the heat exchanger components, heat exchanger components and outside on the inside of radiation cold plate
Room air generate the larger temperature difference so that keep lower temperature on the heat exchanger components surface and carry out high efficient radiation changing
While hot, the temperature that radiation cold plate contacts surface with room air is kept to be higher than room air dew-point temperature, so as to prevent changing
Hot plate condenses, and improves the heat transfer rate of radiation cold plate, ensure that the safe and highly efficient operation of radiation air-conditioner refrigeration system, has structure letter
Singly, the characteristics of technique integration degree is high.
In a kind of optional embodiment, the thermal resistance transmittance plate 6 is by thermal conductivity factor in the range of 0.02~0.2W/mK
And be to wavelength 9~11 μm of heat radiation transmitance be more than 80% material formed.
There is to the heat radiation of 9~11 μm of wavelength due to forming the material of the thermal resistance transmittance plate more than 80% transmission
Rate, high transmittance cause the radiation heat transfer of indoor airflow and heat exchanger components to be barely affected, and it is cold to further increase radiation
The Radiant exothermicity of plate, improves radianting capacity and refrigerating efficiency.
It is the overlooking the structure diagram for the heat exchanger components that the preferred embodiment in the utility model provides referring to Fig. 2；It is described to change
Thermal part 10 includes coil pipe 8 and the heat exchanger plates 7 for being covered in 8 both sides of coil pipe.
In actual work, for the coil pipe 8 by chilled water, disk will be passed through by being covered in the heat exchanger plates 7 of 8 both sides of coil pipe
The chilled water of pipe is maintained at lower temperature, keeps the temperature difference of the heat exchanger components on the inside of radiation cold plate and the room air in outside, has
Beneficial to avoiding the problem that heat exchanger plates condense.
Heat exchanger plates i.e. by being covered in the coil pipe both sides so that lower temperature is maintained at by the chilled water of coil pipe.
In a kind of optional embodiment, the thermal resistance transmittance plate 6 is attached at the lower surface of the heat exchanger components 10.
In a kind of optional embodiment, the opposite side of the thermal resistance transmittance plate 6 is contacted with room air.
It is contacted by the opposite side of the thermal resistance transmittance plate with room air, ensures the spoke of indoor airflow and heat exchanger components
Heat exchange is penetrated from other medium influences, the Radiant exothermicity of radiation cold plate is further increased, improves radianting capacity and refrigeration
Efficiency.
In a kind of optional embodiment, the thickness of the thermal resistance transmittance plate 6 is uniform.
Ensure that indoor airflow exchanges heat uniformly with heat exchanger components by thermal resistance transmittance plate in uniform thickness, so as to improve radiation
Heat exchange efficiency；In addition, thermal resistance transmittance plate in uniform thickness also reduces structure design difficulty.
In a kind of optional embodiment, the thickness of the thermal resistance transmittance plate 6 by the thermal resistance transmittance plate heat conduction system
The convection transfer rate of several, the default thermal resistance transmittance plate and room air, the default heat exchanger components surface temperature,
The default thermal resistance transmittance plate contacts the temperature on surface with room air and the temperature of default room air determines；It is described
The temperature that default thermal resistance transmittance plate contacts surface with room air is higher than the room air dew-point temperature obtained in advance.
The temperature on surface is contacted by setting the thermal resistance transmittance plate with room air higher than room air dew-point temperature,
And thermal resistance is determined by the thermal conductivity factor, default convection transfer rate and various temperature design requirement of thermal resistance transmittance plate
The thickness of transmittance plate can make full use of the low heat conductivity energy of thermal resistance transmittance plate by the design of the thickness of thermal resistance transmittance plate, into
One step ensures that radiation cold plate contacts the temperature on surface with room air higher than room air dew-point temperature, reduces design difficulty.
In a kind of optional embodiment, the thickness h of the thermal resistance transmittance plate 6 is calculated by equation below：
Wherein, λ is the thermal conductivity factor of the thermal resistance transmittance plate；α is the convection transfer rate；t1For the default institute
State the surface temperature of heat exchanger components；t2The temperature on surface is contacted with room air for the default thermal resistance transmittance plate；t3For
The temperature of the default room air.
Referring again to Fig. 3, the radiation air-conditioner refrigeration system further includes transmission and distribution network 4 and water pump 2.
Water pump 2 is used to coordinate transmission and distribution network 4 that the chilled water that the low-temperature receiver 3 provides is delivered to the radiation cold plate.
In actual work, water pump 2 provides power for the transmission and distribution network 4, so that the transmission and distribution network 4 is defeated by chilled water
It send to the radiation cold plate.
Transmission and distribution network is coordinated by the water pump, improves the efficiency of transmission and distribution network transport frozen water, and then described in raising
The refrigerating efficiency of radiation air-conditioner refrigeration system.
In a kind of optional embodiment, the radiation cold plate 1, the low-temperature receiver 3 and the water pump 2 pass through the transmission ＆ distribution
Pipe network 4 forms loop.
The design complexities of the radiation air-conditioner refrigeration system are reduced by above-mentioned loop structure.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (10)
1. a kind of radiation air-conditioner refrigeration system, which is characterized in that including radiation cold plate and cold for being provided to the radiation cold plate
Freeze the low-temperature receiver of water；
The radiation cold plate includes heat exchanger components and thermal resistance transmittance plate；The one side of the thermal resistance transmittance plate is attached at the heat exchanging part
The surface of part；The thermal resistance transmittance plate in the range of 0.02~0.2W/mK and is 9~11 μm of hot spoke to wavelength by thermal conductivity factor
The material that the transmitance penetrated is more than 50% is formed.
2. radiation air-conditioner refrigeration system as described in claim 1, which is characterized in that the thermal resistance transmittance plate is existed by thermal conductivity factor
The material that the transmitance for the heat radiation for being 9~11 μm in the range of 0.02~0.2W/mK and to wavelength is more than 80% is formed.
3. radiation air-conditioner refrigeration system as claimed in claim 2, which is characterized in that the heat exchanger components include coil pipe and covering
Heat exchanger plates in the coil pipe both sides.
4. radiation air-conditioner refrigeration system as claimed in claim 3, which is characterized in that the thermal resistance transmittance plate is attached at described change
The lower surface of thermal part.
5. radiation air-conditioner refrigeration system as claimed in claim 4, which is characterized in that the opposite side of the thermal resistance transmittance plate and room
Interior air contact.
6. radiation air-conditioner refrigeration system as claimed in claim 5, which is characterized in that the thickness of the thermal resistance transmittance plate is uniform.
7. radiation air-conditioner refrigeration system as claimed in claim 6, which is characterized in that the thickness of the thermal resistance transmittance plate is by described
The convection transfer rate, default described of the thermal conductivity factor of thermal resistance transmittance plate, the default thermal resistance transmittance plate and room air
The surface temperature of heat exchanger components, the default thermal resistance transmittance plate contact the temperature on surface and default interior with room air
The temperature of air determines；The temperature that the default thermal resistance transmittance plate contacts surface with room air is higher than the interior obtained in advance
Air dew point temperature.
8. radiation air-conditioner refrigeration system as claimed in claim 7, which is characterized in that the thickness h of the thermal resistance transmittance plate is by such as
Lower formula calculates：
<mrow>
<mi>h</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>&lambda;</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>t</mi>
<mn>2</mn>
</msub>
<mo>-</mo>
<msub>
<mi>t</mi>
<mn>1</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>&alpha;</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>t</mi>
<mn>3</mn>
</msub>
<mo>-</mo>
<msub>
<mi>t</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
</mrow>
Wherein, λ is the thermal conductivity factor of the thermal resistance transmittance plate；α is the convection transfer rate；t1It default described is changed to be described
The surface temperature of thermal part；t2The temperature on surface is contacted with room air for the default thermal resistance transmittance plate；t3To be described
The temperature of default room air.
9. radiation air-conditioner refrigeration system as claimed in claim 8, which is characterized in that the radiation air-conditioner refrigeration system further includes
Transmission and distribution network and water pump.
10. radiation air-conditioner refrigeration system as claimed in claim 9, which is characterized in that the radiation cold plate, the low-temperature receiver and institute
It states water pump and loop is formed by the transmission and distribution network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721361685.8U CN207455808U (en) | 2017-10-19 | 2017-10-19 | Radiation air-conditioner refrigeration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721361685.8U CN207455808U (en) | 2017-10-19 | 2017-10-19 | Radiation air-conditioner refrigeration system |
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| CN207455808U true CN207455808U (en) | 2018-06-05 |
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| CN201721361685.8U Active CN207455808U (en) | 2017-10-19 | 2017-10-19 | Radiation air-conditioner refrigeration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606733A (en) * | 2017-10-19 | 2018-01-19 | 广州大学 | Radiation air-conditioner refrigeration system |
-
2017
- 2017-10-19 CN CN201721361685.8U patent/CN207455808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606733A (en) * | 2017-10-19 | 2018-01-19 | 广州大学 | Radiation air-conditioner refrigeration system |
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