CN208567196U - It is a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator - Google Patents
It is a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator Download PDFInfo
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- CN208567196U CN208567196U CN201820864557.3U CN201820864557U CN208567196U CN 208567196 U CN208567196 U CN 208567196U CN 201820864557 U CN201820864557 U CN 201820864557U CN 208567196 U CN208567196 U CN 208567196U
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Abstract
The utility model discloses a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator, including evaporator, compressor, condenser, subcooler, cooling water tank, radiative cooling device, expansion valve, cooling tower, valve and water pump.On the one hand the utility model can produce cold water by radiative cooling device, in time directly or indirectly provide cooling water for subcooler and condenser.On the other hand, when outside air temperature is higher, and radiative cooling/cold storage capacity is unable to satisfy the requirement of coolant water temperature, cooler-water temperature can also be reduced by cooling tower.In short, can absorb more heats when the sub-cooled liquid refrigerant being prepared before expansion valve is evaporated in evaporator by different adjusting methods, improve the coefficient of performance of equipment.
Description
Technical field
The utility model belongs to refrigeration air-conditioner energy-saving field, it particularly relates to which a kind of be based on radiative cooling/cold-storage
Unit vapor compression type refrigerator.
Background technique
The vapor compression type refrigerating system of general air-conditioning be made of evaporator, compressor, condenser and expansion valve etc., and
Composition closed system is connected in a certain order, suitable refrigerant is filled in closed system, is completed circulation and is realized
From indoor evaporator to the indoor process of refrigerastion of outdoor condenser heat extraction.The high-temperature high-pressure refrigerant being discharged from compressor enters cold
Cooling procedure after condenser is as follows: the superheated refrigerant-saturation vapor phase refrigerant-refrigerant of gas-liquid two-saturation liquid phase refrigerant-
Supercooled liquid phase refrigerant.Wherein the supercooled state of refrigerant generallys use degree of supercooling to indicate, degree of supercooling refers to that refrigerant is current
The difference of pressure corresponding saturation temperature and refrigerant Current Temperatures.It is often insufficient to go out the refrigerant degree of supercooling flowed from condenser,
This will bring the adverse effect of two aspects to refrigeration system: first is refrigerating capacity deficiency；Second is that refrigerant shunts not
, it is low to will lead to evaporator effectiveness.It can be seen that the refrigeration performance and degree of supercooling of refrigeration system are closely related, so in system
It is intended to obtain biggish degree of supercooling when design.
Condenser can be made to go out to flow refrigerant or obtain the side of more big supercooling degree in view of the above-mentioned problems, people are dedicated to research
Method.One of which is condenser to be divided into cold loop and non-two parts of cold loop excessively, i.e., increases several U in condenser
Type tube loop (referred to as crossing cold loop) is subcooled dedicated as refrigerant.Superheated refrigerant is transformed into non-cross after cold loop exchanges heat
It is not subcooled or has the liquid phase refrigerant being subcooled a little, which entered back into the outside heat extraction of cold loop, and obtained biggish mistake
Cold degree.Chinese patent CN2126558Y just uses above-mentioned method, and implementation method is the outlet heat-dissipating pipe in condenser
Tail end welds a single u-shaped copper pipe, and immerses it in condensed water that air conditioner is sucked out, using the cooling capacity of condensed water to condenser
The refrigerant flowed out freezes, to improve refrigerant degree of supercooling, to obtain higher refrigerating capacity.But this method can occupy
A part of heat exchange area of former condenser, improves condensing pressure, increases the power consumption of compressor.Still an alternative is that cold
Special subcooler, cooling water and refrigerant heat exchanger in subcooler is arranged in condenser outlet flow section, and preparation has bigger supercooling
The refrigerant of degree.It is exchanged heat to obtain cooling, again by water pump with the cooling water after refrigerant heat exchanger by underground pipe and underground
Secondary feeding subcooler and refrigerant heat exchanger complete circulation.Chinese patent CN105737445A just uses above-mentioned method, should
Although method can be obtained with the saturated liquid refrigerant compared with big supercooling degree, in heat recharge underground, still
There are some problems, influence as underground temperature rises to have microorganism, temperature is deposited over the ground when heat recharge is incomplete
In influence, etc.；Simultaneously because underground pipe is generally all deep, the energy consumption of water circulating pump is larger, does not also meet energy-efficient requirement.
The shortcomings that for above-mentioned two research, the utility model then disclose a kind of based on radiative cooling/cold-storage steam
Compression-type refrigeration device has better solved the problem of refrigerant is subcooled, has also noticed power saving to the greatest extent, simultaneously
System structure is simple.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of utility model are that utility model one kind is based on radiation and causes
The unit vapor compression type refrigerator of cold/cold-storage, it is intended to which the problem of better solving refrigerant supercooling pays attention to energy conservation to the greatest extent
Problem, while accomplishing that system structure is simple.
This kind includes evaporator (1), compressor (2), condensation based on radiative cooling/cold-storage unit vapor compression type refrigerator
Device (3), the first regulating valve (4), the second regulating valve (5), cooling tower (6), third regulating valve (7), the 4th regulating valve (8), the 5th
Regulating valve (9), subcooler (10), expansion valve (11), radiative cooling device (12), the first water pump (13), the 6th regulating valve
(14), the 7th regulating valve (15), the second water pump (16), the 8th regulating valve (17), the 9th regulating valve (18), the tenth regulating valve
(19), the 11st regulating valve (20), water tank (21), third water pump (22).
Mainly there are following 4 contents in terms of the connection of pipeline section:
1, the cooling water mouth of radiative cooling device (12) is connect with pipeline section a, and the 8th is installed in the first branch of pipeline section a
The outlet of regulating valve (17), the 8th regulating valve (17) is connect with the first water inlet of water tank (21), the first water outlet of water tank (21)
Mouth is sequentially connected with the second water pump (16), the 7th regulating valve (15), the outlet of the 7th regulating valve (15) and the first branch of pipeline section b
Connection, the end of pipeline section b are connect with the water return outlet of radiative cooling device (12), form a complete loops.
2, the second branch of pipeline section a is connect with pipeline section c, the tenth regulating valve (19) of installation on pipeline section c, and the first of pipeline section c
Branch is connect with pipeline section d, and the end of pipeline section d is connected with the water inlet of subcooler (10), the water outlet of subcooler (10) with
Pipeline section e connection, the first branch of pipeline section e are connected with pipeline section f, the 4th regulating valve (8) of installation on pipeline section f, and the first of pipeline section f
Branch is connected with pipeline section g, successively installs the 6th regulating valve (14), the first water pump (13) on pipeline section g, the end of pipeline section g first with
The second branch of pipeline section b is connected, then is formed and connected with pipeline section b, and the return water of the end of pipeline section b and radiative cooling device (12)
Mouth connection, also forms a complete loops.
3, the second water outlet of water tank (21) is connected with pipeline section h, and the 11st regulating valve (20), pipeline section are installed on pipeline section h
The end of h is first connected with the second branch of pipeline section c, then is formed and connected with pipeline section d, end and subcooler (10) of pipeline section d
Water inlet is connected, and the water outlet of subcooler (10) is connect with pipeline section e, and the first branch of pipeline section e is connected with pipeline section f, in pipeline section f
The 4th regulating valve (8) of upper installation, while the second branch of pipeline section f is connect with pipeline section i, and the 9th adjusting is successively installed on pipeline section i
The water outlet of valve (18) and third water pump (22), third water pump (22) is connect with the second water inlet of water tank (21), forms one
Complete loops.
4, on the circuit of cooling tower cooling water pipe, the second branch of pipeline section e is connect with pipeline section j, is originated close to pipeline section j
5th regulating valve (9) is installed, the end of pipeline section j is connect with condenser (3) water inlet, the water outlet and pipe of condenser (3) at end
Section k connection, can be divided into two loops below, one is the first branch of pipeline section k is connect with pipeline section L, install first on pipeline section L
Regulating valve (4), then the end pipeline section L is first connect with the second branch of pipeline section m, then connects pipeline section m.The second is the second of pipeline section k
Branch is connect with pipeline section n, and the second regulating valve (5) are installed on pipeline section n, and the end pipeline section n is connect with the water inlet of cooling tower (6),
The water outlet of cooling tower (6) is connect with pipeline section o, then pipeline section o end first is connected with the first branch of pipeline section m, then with pipeline section m
Connection is finally installing third regulating valve (7) close to the end pipeline section m, and the outlet of third regulating valve (7) is with pipeline section f's
The connection of third branch cooperates above-mentioned second and Article 3 circuit, forms the complete loops of cooling tower (6) cooling cooling water.
For used radiative cooling materials, it should be with higher in 8-13 mu m waveband (" atmospheric window " wave band)
Emissivity, i.e. emissivity should be greater than 0.90；Used radiative cooling materials, should simultaneously sun heat radiation wave band should have compared with
High reflectivity, i.e. reflectivity should be greater than 0.90；Used radiative cooling materials can be the optical electivity based on Meta Materials
Property film, nanometer laser selects emissive material or one of radiative cooling coating or coating.
Detailed description of the invention
Fig. 1 is a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator schematic diagram；
Label title in figure: 1, evaporator；2, compressor；3, condenser；4, the first regulating valve；5, the second regulating valve
6, cooling tower；7, third regulating valve；8, the 4th regulating valve；9, the 5th regulating valve；10, subcooler；11, expansion valve；12, spoke
Penetrate chiller；13, the first water pump；14, the 6th regulating valve；15, the 7th regulating valve；16, the second water pump；17, the 8th regulating valve；
18, the 9th regulating valve；19, the tenth regulating valve；20, the 11st regulating valve；21, water tank；22, third water pump.
Specific embodiment
As shown in Figure 1, being a kind of described in the utility model based on radiative cooling/cold-storage steam compression type refrigerating dress
It sets, device includes 1, evaporator；2, compressor；3, condenser；4, the first regulating valve；5, the second regulating valve 6, cooling tower；7,
Three regulating valves；8, the 4th regulating valve；9, the 5th regulating valve；10, subcooler；11, expansion valve；12, radiative cooling device；13,
First water pump；14, the 6th regulating valve；15, the 7th regulating valve；16, the second water pump；17, the 8th regulating valve；18, it the 9th adjusts
Valve；19, the tenth regulating valve；20, the 11st regulating valve；21, water tank；22, third water pump.
Steam compression type refrigerating in the utility model will complete an entire circulation, then need the connection side of each loop
Formula is operated according to following 4 points:
1, the cooling water mouth of radiative cooling device 12 is connect with pipeline section a, and the 8th is installed in the first branch of pipeline section a and is adjusted
Valve 17 is saved, the outlet of the 8th regulating valve 17 is connect with the first water inlet of water tank 21, the first water outlet and the second water of water tank 21
The 16, the 7th regulating valve 15 of pump is sequentially connected, and the outlet of the 7th regulating valve 15 is connect with the first branch of pipeline section b, the end of pipeline section b
It is connect with the water return outlet of radiative cooling device 12, forms a complete loops.
2, the second branch of pipeline section a is connect with pipeline section c, the tenth regulating valve 19 of installation on pipeline section c, and first of pipeline section c
Road is connect with pipeline section d, and the end of pipeline section d is connected with the water inlet of subcooler 10, and the water outlet and pipeline section e of subcooler 10 connect
It connects, the first branch of pipeline section e is connected with pipeline section f, and the 4th regulating valve 8, the first branch and pipeline section g of pipeline section f are installed on pipeline section f
It is connected, the 6th regulating valve 14, the first water pump 13, the first second branch with pipeline section b in the end of pipeline section g is successively installed on pipeline section g
It is connected, then is formed and connected with pipeline section b, and the end of pipeline section b is connect with the water return outlet of radiative cooling device 12, also forms one
A complete loops.
3, the second water outlet of water tank 21 is connected with pipeline section h, and the 11st regulating valve 20, the end of pipeline section h are installed on pipeline section h
End is first connected with the second branch of pipeline section c, then is formed and connected with pipeline section d, the end of pipeline section d and the water inlet phase of subcooler 10
Even, the water outlet of subcooler 10 is connect with pipeline section e, and the first branch of pipeline section e is connected with pipeline section f, and the 4th is installed on pipeline section f
Regulating valve 8, while the second branch of pipeline section f is connect with pipeline section i, and the 9th regulating valve 18 and third water are successively installed on pipeline section i
Pump 22, the water outlet of third water pump 22 is connect with the second water inlet of water tank 21, forms a complete loops.
4, on the circuit of cooling tower cooling water pipe, the second branch of pipeline section e is connect with pipeline section j, is originated close to pipeline section j
5th regulating valve 9 is installed, the end of pipeline section j is connect with 3 water inlet of condenser, and the water outlet and pipeline section k of condenser 3 connect at end
It connects, two loops can be divided into below, one is the first branch of pipeline section k is connect with pipeline section L, first is installed on pipeline section L and is adjusted
Valve 4, then the end pipeline section L is first connect with the second branch of pipeline section m, then connects pipeline section m.The second is the second branch of pipeline section k with
Pipeline section n connection, installs the second regulating valve 5 on pipeline section n, and the end pipeline section n is connect with the water inlet of cooling tower 6, and cooling tower 6 goes out
The mouth of a river is connect with pipeline section o, and then the end of pipeline section o is first connected with the first branch of pipeline section m, then connect with pipeline section m, is finally existed
Third regulating valve 7 is installed close to the end pipeline section m, and the outlet of third regulating valve 7 is connect with the third branch of pipeline section f, is matched
State second and Article 3 circuit are closed, the complete loops of the cooling cooling water of cooling tower 6 are formed.
Emissivity with higher, i.e. emissivity in 8-13 mu m waveband (" atmospheric window " wave band) should be used to should be greater than
0.90 radiative cooling materials.There should be high reflectance simultaneously using in sun heat radiation wave band, i.e. reflectivity should be greater than
0.90 radiative cooling materials.Emissive material can be selected using spectral selection film, nanometer laser based on Meta Materials, or
One of person's radiative cooling coating or coating.In order to ensure the cooling water entered in subcooler 10 reaches stable low temperature shape
State, the initial segment of water supplying pipe are layed at the inner surface of radiative cooling device 12, and with the S-shaped of uniform intervals distance
State arranges to increase time of contact and the distance of cooling water and radiative cooling device 12.For reduce cooling capacity loss, in all pipes
Road surface is laid with insulating layer.
In actual control process, it should be adjusted according to following four mode:
Radiative cooling supplying cold directly mode: when needing to freeze in night room, since the temperature of the night outer space is extremely low, spoke
Chiller is penetrated with biggish cooling capacity, is used directly for the cooling of condenser, opens the tenth regulating valve 19, the at this time
Four regulating valves 8, the 6th regulating valve 14 and the first water pump 13, by remaining all loop water pump and regulating valve close, radiation cause
The low-temperature cooling water of cold acquisition is directly that subcooler 10 provides cooling capacity；If cooling capacity is enough and has a margin, in the feelings of above-mentioned control
The 4th regulating valve 8 is first closed under condition, then opens the 5th regulating valve 9, the second regulating valve 5 and third regulating valve 7, is condenser 3
Cooling water is provided, the preliminary supercooling of refrigerant is completed, and coolant water temperature is tentatively reduced by cooling tower 6, eventually passes back to radiation and cause
In device for cooling 12, circulation is completed；
Cold-storage mode: when not needing refrigeration in night room, the sub-cooled that is prepared using radiative cooling device 12
Water can be first stored in water tank 21, be supplied again by water tank 21 when needing cooling supply, need at this time open the 8th regulating valve 17,
Second water pump 16 and the 7th regulating valve 15 close remaining all water pump and regulating valve；
Water tank cooling mode: when the cooling water that radiative cooling device 12 prepares is not enough to be subcooled refrigerant and water tank 21
When inside having low-temperature cooling water can be used for that refrigerant is subcooled, the circulation of cooling water is as the first above-mentioned situation, according to cooling
The case where water cooling amount, it is determined whether start and stop related valve and water pump complete the preliminary supercooling to 3 inner refrigerant of condenser；Work as cooling capacity
When not more than needed, it is only used for the supercooling in subcooler 10 to refrigerant, opens the 11st regulating valve 20, the 4th regulating valve at this time
8, the 9th regulating valve 18 and third water pump 22 and remaining all regulating valve and water pump are closed；When cooling capacity is enough and has more than needed
When, on the basis of above adjusting, the 4th regulating valve 8 is closed, opens simultaneously the 5th adjusting 9, third regulating valve 7, first is adjusted
Valve 4 and the control method of the second regulating valve 5 are as described below；
Cooling tower refrigerating mode: opening the preliminary supercooling to 3 inner refrigerant of condenser when the cooling capacity of cooling water has more than needed,
Go out to flow cooling water temperature if outside air temperature is higher than condenser 3, does not use the cooling cooling water of cooling tower 6, the second adjusting need to be closed
Valve 5 opens the first regulating valve 4；And at temperature lower season or night, outside air temperature goes out to flow lower than condenser 3 cold
But coolant-temperature gage can use cooling tower 6 and carry out preliminary cooling to it, need to close the first regulating valve 4 and open simultaneously the second adjusting
Valve 5；The start and stop of remaining loop upper pipe fitting valve are referring to above-mentioned three kinds of situations.
Claims (3)
1. a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator, it is characterised in that:
Including evaporator (1), compressor (2), condenser (3), the first regulating valve (4), the second regulating valve (5), cooling tower (6),
Third regulating valve (7), the 4th regulating valve (8), the 5th regulating valve (9), subcooler (10), expansion valve (11), radiative cooling dress
Set (12), the first water pump (13), the 6th regulating valve (14), the 7th regulating valve (15), the second water pump (16), the 8th regulating valve
(17), the 9th regulating valve (18), the tenth regulating valve (19), the 11st regulating valve (20), water tank (21), third water pump (22).
2. according to claim 1 a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator, each loop it
Between be connected with each other, it is characterised in that:
The cooling water mouth of radiative cooling device (12) is connect with pipeline section a, and the 8th regulating valve is installed in the first branch of pipeline section a
(17), the outlet of the 8th regulating valve (17) is connect with the first water inlet of water tank (21), the first water outlet of water tank (21) and
Two water pumps (16), the 7th regulating valve (15) are sequentially connected, and the outlet of the 7th regulating valve (15) is connect with the first branch of pipeline section b,
The end of pipeline section b is connect with the water return outlet of radiative cooling device (12), forms a complete loops；
The second branch of pipeline section a is connect with pipeline section c, on pipeline section c install the tenth regulating valve (19), the first branch of pipeline section c with
The end of pipeline section d connection, pipeline section d is connected with the water inlet of subcooler (10), and the water outlet and pipeline section e of subcooler (10) connect
It connects, the first branch of pipeline section e is connected with pipeline section f, and the 4th regulating valve (8), the first branch and pipe of pipeline section f are installed on pipeline section f
Section g is connected, and successively installs the 6th regulating valve (14), the first water pump (13) on pipeline section g, the end of pipeline section g first with pipeline section b the
Two branches are connected, then are formed and connected with pipeline section b, and the end of pipeline section b is connect with the water return outlet of radiative cooling device (12),
Form a complete loops；
Second water outlet of water tank (21) is connected with pipeline section h, and the 11st regulating valve (20), the end of pipeline section h are installed on pipeline section h
First it is connected with the second branch of pipeline section c, then is formed and connected with pipeline section d, the end of pipeline section d and the water inlet phase of subcooler (10)
Even, the water outlet of subcooler (10) connect with pipeline section e, and the first branch of pipeline section e is connected with pipeline section f, and the is installed on pipeline section f
Four regulating valves (8), while the second branch of pipeline section f is connect with pipeline section i, successively installed on pipeline section i the 9th regulating valve (18) and
The water outlet of third water pump (22), third water pump (22) is connect with the second water inlet of water tank (21), forms a complete loops；
On the circuit of cooling tower cooling water pipe, the second branch of pipeline section e is connect with pipeline section j, is being pacified at the starting point pipeline section j
The 5th regulating valve (9) is filled, the end of pipeline section j is connect with condenser (3) water inlet, and the water outlet and pipeline section k of condenser (3) connect
It connects, two loops can be divided into below, one is the first branch of pipeline section k is connect with pipeline section L, first is installed on pipeline section L and is adjusted
Valve (4), then the end pipeline section L is first connect with the second branch of pipeline section m, then connects pipeline section m；The second is the second branch of pipeline section k
It is connect with pipeline section n, the second regulating valve (5) is installed on pipeline section n, the end pipeline section n is connect with the water inlet of cooling tower (6), cooling
The water outlet of tower (6) is connect with pipeline section o, and then the end of pipeline section o is first connected with the first branch of pipeline section m, then is connected with pipeline section m
It connects, finally close to the end pipeline section m installation third regulating valve (7), and the of the outlet of third regulating valve (7) and pipeline section f
The connection of three branches cooperates above-mentioned second and Article 3 circuit, forms the complete loops of cooling tower (6) cooling cooling water.
3. according to claim 1 a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator, feature also exists
In:
Used radiative cooling materials, the emissivity with higher in 8-13 mu m waveband, while in sun heat radiation wave band
Reflectivity with higher；Used radiative cooling materials are spectral selection film or nanometer laser based on Meta Materials
Select one of emissive material or radiative cooling coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864557.3U CN208567196U (en) | 2018-05-31 | 2018-05-31 | It is a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864557.3U CN208567196U (en) | 2018-05-31 | 2018-05-31 | It is a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208567196U true CN208567196U (en) | 2019-03-01 |
Family
ID=65485567
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820864557.3U Expired - Fee Related CN208567196U (en) | 2018-05-31 | 2018-05-31 | It is a kind of based on radiative cooling/cold-storage unit vapor compression type refrigerator |
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| Country | Link |
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| CN (1) | CN208567196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174470A (en) * | 2020-01-08 | 2020-05-19 | 哈尔滨工业大学（威海） | Energy-saving air conditioning system of water-cooled air conditioner condenser combined with radiation refrigeration technology |
-
2018
- 2018-05-31 CN CN201820864557.3U patent/CN208567196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174470A (en) * | 2020-01-08 | 2020-05-19 | 哈尔滨工业大学（威海） | Energy-saving air conditioning system of water-cooled air conditioner condenser combined with radiation refrigeration technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |