CN105222395B - A kind of heat pump air conditioning system - Google Patents
A kind of heat pump air conditioning system Download PDFInfo
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- CN105222395B CN105222395B CN201510636515.5A CN201510636515A CN105222395B CN 105222395 B CN105222395 B CN 105222395B CN 201510636515 A CN201510636515 A CN 201510636515A CN 105222395 B CN105222395 B CN 105222395B
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Abstract
The present invention relates to a kind of heat pump air conditioning systems, including heat source heating unit and intermediate working medium cycling element, further include the jet refrigeration circulation unit being connect by heat exchanger with intermediate working medium cycling element, heat source heating unit includes being arranged in parallel, the first heat source passages of a unlatching and Secondary Heat Source channel can be selected, first, one in Secondary Heat Source channel connect with ejector refrigeration unit, another is connect by heat exchanger with intermediate working medium cycling element, the heat pump air conditioning system of the present invention is in cooling mode, the heat source passages being connect with jet refrigeration circulation unit are opened；In a heating mode, the heat source passages being connect with intermediate working medium cycling element are opened.The object of the present invention is to provide a kind of efficiency it is high, be conducive to the heat pump air conditioning system of energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of heat pump air conditioning systems, belong to heat pump air conditioner technical field.
Background technology
Electrical energy drive heat pump unit has advantage in system reliability and refrigerating efficiency etc., is the system being widely used
Cold heating equipment, however heat pump unit is needed with electrical energy drive, the advantage without energy-saving and emission-reduction, how to ensure air-conditioning system
While cooling or heating effect, improving low-grade energy utilization ratio has the meaning of important energy-saving and emission-reduction.
In the prior art, solar absorption refrigeration cycle and the compression refrigeration cycle of electrical energy drive combine to form combined-circulation
It is to improve the relatively conventional endless form of low taste efficiency of energy utilization.Such as application No. is 201010510300.6, publication No.s
Chinese invention patent for 101963412 A of CN discloses such a solar energy and electric energy combined heat pump
System and refrigerating and heating method, the heat pump system include heat source heating unit, absorption type heat pump unit, intermediate working medium cycle
Unit and compression heat pump cycling element, heat source heating unit include low-grade heating unit, and low-grade heating unit is the sun
Energy heating unit, absorption type heat pump unit include generator, condenser, fluid reservoir, absorber and evaporator, are equipped in generator
For heat flow into generator in working medium solution spiral heater, solar heat collector be connected to spiral heater into
Between outlet；Intermediate working medium cycling element includes heating heat exchange coil, the first heat-mass exchange equipment and Intermediate Heat Exchanger, adds
Hot heat exchange coil is located in the evaporator of absorption type heat pump unit, and heat exchange is realized with the working media in evaporator；First heat
Cold energy in intermediate working medium or thermal energy can be supplied to user to use by mass transter equipment；Intermediate Heat Exchanger is located at centre
Between working media cycling element and compression heat pump cycling element, the heat exchange between two cycling elements, compression are realized
Heat pump cycle unit includes the second heat-mass exchange equipment, and the second heat-mass exchange equipment is by the cold energy in compression heat pump cycling element
Or thermal energy is supplied to user to use.
The heat pump system in cooling mode, solar heat collector driving absorption heat pump single unit produce compared with
Low temperature intermediate working medium, by the first heat-mass exchange equipment, the exchange of the first caloic is set the intermediate working medium of lower temperature
For release cold energy to interior for users to use；The heat pump system in a heating mode, inhale by solar heat collector driving
Receipts formula heat pump unit produces higher temperature intermediate working medium, and higher temperature intermediate working medium is set by the exchange of the first caloic
It is standby, thermal energy required for the first heat-mass exchange equipment release thermal energy to indoor offer user.But due in solar heat collector
The medium that can only pass through in spiral heater and generator of heat source carry out heat exchange, in a heating mode, solar energy heating dress
Heat source in putting needs first to carry out heat exchange with the medium in generator, and then make the medium temperature in absorption heat pump cycle unit
Degree raising, high-temperature medium pass through condenser, fluid reservoir, throttle valve, the control valve of absorption heat pump cycle unit, then into
In evaporator, then with the heating heat exchange coil in evaporator heat exchange is carried out, finally can just obtain the intermediate of higher temperature and work
Medium causes high-temperature medium to have a big chunk heat energy loss in cyclic process, causes heating efficiency relatively low.Meanwhile it inhales
After high-temperature medium in receipts formula heat pump cycle unit exchanges heat with the intermediate working medium in heating heat exchange coil, absorption heat pump follows
Medium in ring element is flow back by absorber, solution pump in generator, during medium flow field returns generator, in medium
Thermal energy can enter in absorber, heat-energy secondary is caused to be lost in, spiral heater is when reheating medium, it is desirable to provide more
Medium could be heated to mutually synthermal by more thermal energy, further reduced the efficiency of heating surface.
Invention content
The object of the present invention is to provide a kind of efficiency it is high, be conducive to the heat pump air conditioning system of energy-saving and emission-reduction, it is existing to solve
There is the technical issues of heat pump air conditioning system energy loss is more in technology.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of heat pump air conditioning system including heat source heating unit and intermediate working medium cycling element, is further included by changing
The jet refrigeration circulation unit that hot device is connect with intermediate working medium cycling element, heat source heating unit include be arranged in parallel, can
Select the first heat source passages of a unlatching and Secondary Heat Source channel, one in first, second heat source passages and ejector refrigeration unit
Connection, another is connect by heat exchanger with intermediate working medium cycling element.
Further include the compression heat pump cycling element for exchanging heat with intermediate working medium cycling element, the compression type heat
Pump circulation unit includes apparatus for treating indoor air, and apparatus for treating indoor air is connected in parallel to the first compression circulation canal and the second pressure
Contracting circulation canal, the first compression circulation canal are equipped with the first compressor and for exchanging heat with the intermediate working medium cycling element
Heat exchanger, second compression circulation canal be equipped with the second compressor and outdoor air heat exchanger.
Heat source heating unit includes low grade heat energy heating unit, and the low grade heat energy heating unit is solar energy heating
Device.
Jet refrigeration circulation unit uses refrigeration working medium as HFC classes or HC class refrigerants, and intermediate working medium cycle is single
The working media of member is water, saline solution or ethylene glycol solution, and the refrigeration working medium of compression heat pump cycling element is HFC classes or HC
Class refrigerant.
The apparatus for treating indoor air of intermediate working medium cycling element is radiant panel, air cooling fin pipe heat exchanger or spray
Room, the apparatus for treating indoor air of compression heat pump cycling element is water-cooled heat exchanger or air-cooled heat exchanger.
Heat exchanger on second compression circulation canal is plate heat exchanger, double pipe heat exchanger or shell and tube exchanger.
The outdoor air heat exchanger is air-cooled finned tube exchanger.
The present invention advantageous effects be：Heat source heating unit in the present invention has been arranged in parallel two heat source passages,
First passage and Secondary Heat Source channel, two heat source passages select a unlatching, one and injecting type in first, second heat source passages
Refrigerating cycle unit connects, and can produce jet refrigeration circulation unit the refrigerant heat in jet refrigeration circulation unit
The intermediate working medium of lower temperature；Another in first, second heat source passages is followed by heat exchanger and intermediate working medium
Ring element connects, to obtain the intermediate working medium of higher temperature.The present invention in cooling mode, with jet refrigeration circulation unit
The heat source passages of connection are opened, at this point, heat source heating unit driving jet refrigeration circulation unit produces the intermediate work of lower temperature
Make medium, cold energy is supplied to user to use by intermediate working medium cycling element.In a heating mode, connect with intermediate working medium
The heat source passages connect are opened, and heat source heating unit directly heats intermediate working medium cycling element, produces higher temperature
Intermediate working medium, and then provide a user thermal energy.The present invention is by setting two heat source passages, in different modes,
Two heat source passages respectively carry out heat exchange to corresponding cycling element, can make full use of the heat of heat source, and the efficiency of heating surface is high,
In a heating mode, heat source can directly heat intermediate working medium cycling element, avoid heat losses, improve heating
Efficiency.
Description of the drawings
Fig. 1 is the structure diagram of heat pump air conditioning system embodiment 1 of the present invention.
Specific embodiment
The embodiment 1 of heat pump air conditioning system of the present invention, as shown in Figure 1, the heat pump air conditioning system include heat source heating unit,
Jet refrigeration circulation unit, compression heat pump cycling element and positioned at jet refrigeration circulation unit and compression type heat pump circulation list
Intermediate working medium cycling element between member, intermediate working medium cycling element include the first apparatus for treating indoor air 10, pressure
Contracting formula heat pump cycle unit includes the second apparatus for treating indoor air 13, at the first apparatus for treating indoor air 10, the second room air
Managing device 13 can be to indoor release cold energy or thermal energy, and the direction of arrow is the direction of fluid motion in figure.
Jet refrigeration circulation unit includes generator 1, injector 2, regenerator 3, condenser 4, first throttle component 5, steams
Device 6 and working medium pump 7 are sent out, generator 1 has refrigerant vapour outlet and refrigerant inlet, and there are two fluid inlets for the tool of injector 2
With a fluid nozzle, one in two fluid inlets with refrigerant vapour outlet, another with inside evaporator 6
Heat exchange coil connects, and the fluid nozzle of injector 2 is connect by the first heat exchange coil of regenerator 3 with the entrance of condenser 4, cold
The outlet of condenser 4 is connect by first throttle component 5 with the heat exchange coil inside evaporator 6, the fluid inlet connection of working medium pump 7
Between condenser 4 and first throttle component 5, the outlet of working medium pump 7 passes through the second heat exchange coil of regenerator 3 and generator 1
Refrigerant inlet connection.
Heat source heating unit has thermal source inlet and thermal source outlet, is connected between thermal source inlet and thermal source outlet low-grade
Energy heats device, in the present embodiment, the low grade heat energy heating unit is solar heat collector, solar heat collector
It is combustion gas or fuel heater including solar heat-collection plate, heat cycles pump and auxiliary heater, auxiliary heater, works as the sun
When can be insufficient, auxiliary heater can assist heating；In other embodiments, low grade heat energy heating unit can also be to utilize
The underground heat either heating unit of waste heat or waste heat, or combustion gas or fuel oil heater.Thermal source inlet and heat source go out
Two heat source passages, respectively the first heat source passages and Secondary Heat Source channel are arranged in parallel between mouthful, the first heat source passages are set
Have a first control valve 19a and the spiral heater 18a for being heated for generator 1, the first heat source passages pass through generator 1 and
Spiral heater 18a is located inside generator 1；Secondary Heat Source channel is equipped with the second control valve 19b and for being situated between with centre work
The Intermediate Heat Exchanger 18b of matter cycling element heat exchange.First, second heat source passages select a unlatching, and heat pump air conditioning system is in refrigeration mould
Under formula, the first control valve 19a open, the second control valve 19b close, heat pump air conditioning system in a heating mode, the second control valve
19b is opened, and the first control valve 19a is closed.
Intermediate working medium cycling element includes circulating pump 9, the first apparatus for treating indoor air 10, third control valve 8a, the
Four control valve 8b, the outlet of circulating pump 9 are divided into two-way, wherein being worked all the way by third control valve 8a and the intermediate of evaporator 6
Medium inlet connects, and another way is connect by the 4th control valve 8b with intermediate heater 18b, the intermediate working medium of evaporator 6
Outlet is connected between intermediate heater 18b and the first apparatus for treating indoor air.Wherein, third control valve 8a and the 4th control valve
8b selects a unlatching, and in cooling mode, third control valve 8a is opened heat pump air conditioning system, and the 4th control valve 8b is closed；Heat pump is empty
In a heating mode, the 4th control valve 8b is opened adjusting system, and third control valve 8a is closed.
Compression heat pump cycling element includes the second apparatus for treating indoor air 13, and the second apparatus for treating indoor air 13 is in parallel even
Two compression circulation canals, the respectively first compression circulation canal and the second compression circulation canal are connected to, the first compression cycle is logical
Road is equipped with the first compressor 15a, the first four-way reversing valve 14a, the second throttle part 12a and for being recycled with intermediate working medium
The First Heat Exchanger 11 of unit heat exchange, the second compression circulation canal are equipped with the second compressor 15b, the second four-way reversing valve 14b, room
External heat exchanger 16, third throttle part 12b and the second heat exchanger 17 for exchanging heat with jet refrigeration circulation unit, second changes
Hot device 17 is located at the refrigerant inlet position of generator 1.
In the present embodiment, the refrigeration working medium used in jet refrigeration circulation unit is HFC classes or HC class refrigerants, intermediate work
Make the intermediate working medium of medium circulation unit as water, saline solution or ethylene glycol solution, the system of compression heat pump cycling element
Cold working medium is HFC classes or HC class refrigerants；Second heat exchanger is plate heat exchanger, double pipe heat exchanger or shell-tube type exchange heat
Device, outdoor heat exchanger are air-cooled finned tube exchanger；Outdoor air heat exchanger is air-cooled finned tube exchanger；First throttle
Component, the second throttle part, third throttle part are capillary, heating power expansion valve or electric expansion valve.
In cooling mode, heat source heating unit driving jet refrigeration circulation unit freezes heat pump air conditioning system of the present invention,
First control valve 19a, third control valve 8a are opened, and the second control valve 19b, the 4th control valve 8b are closed, heat source heating unit
Refrigerant in the spiral heater 18a heating generators 1 of first heat source passages generates high pressure refrigerant vapor, high-pressure refrigeration
After agent steam enters injector 2 from the outlet of the refrigerant vapour of generator 1, injection carry out 6 low pressure refrigerant vapor of flash-pot and
Become elevated pressures steam, elevated pressures steam enters condenser 4 and is condensed into refrigerant liquid, part of refrigerant liquid warp
Working medium pump 7 is sent into generator 1, is heated to form high pressure refrigerant vapor again；Another part refrigerant liquid is through first throttle
Component 5, which is throttled after decompression, to be become low temperature liquid refrigeration agent and enters the heat exchange of evaporator 6 and intermediate working medium to be vaporized into refrigerant
Steam, the refrigerant vapour in evaporator 6 are entered in injector 2, and the intermediate working medium temperature after heat exchange is down to 10 ~ 25 DEG C
Left and right, and then produces the intermediate working medium of lower temperature, the intermediate working medium of lower temperature by the first room air at
Device 10 is managed to indoor release cold energy.
When cold energy required for the first apparatus for treating indoor air 10 all undertakes user side, compression heat pump cycling element stops
It only works, only heat source heating unit driving jet refrigeration circulation and the work of intermediate working medium cycling element, heat source heating unit
Jet refrigeration circulation is driven to provide whole cold energy needed for refrigerating capacity supply user.When the first apparatus for treating indoor air 10 and second
Required for 13 shared user side of apparatus for treating indoor air during cold energy, heat source heating unit driving jet refrigeration circulation, centre
Working media cycling element and compression heat pump cycling element work, heat source heating unit driving jet refrigeration circulation produce compared with
Low temperature intermediate working medium, the intermediate working medium of lower temperature first directly take on user through the first apparatus for treating indoor air 10
Required part cold, the First Heat Exchanger 11 for entering back into compression heat pump cycling element exchange heat, and recycle work again
Cold contained by medium, when cold required for the second apparatus for treating indoor air 13 independently undertakes user side, ejector refrigeration follows
Ring and intermediate working medium cycling element are stopped, and it is cold that compression heat pump cycling element produces the required whole of user
Amount.
In the present embodiment, the second air processor of compression heat pump cycling element is connected in parallel to two compression cycles and leads to
Road, each channel are respectively provided with the refrigeration or heating efficiency for there are one compressor, improving whole system.In other embodiment
In, a compression circulation canal and a compressor can be only set.In addition, in the present embodiment, set on the second compression circulation canal
The second heat exchanger 17 being connect with jet refrigeration circulation unit is useful for, in cooling mode, the second compression circulation canal can
The cold energy in jet refrigeration circulation unit inner refrigerant is further recycled, improves capacity usage ratio.In other embodiments,
It can be not provided with the second heat exchanger.
In a heating mode, the second control valve 19b, the 4th control valve 8b are opened the heat pump air conditioning system, the first control valve
19a, third control valve 8a are closed, and heat source heating unit no longer drives jet refrigeration circulation unit, but passes through Intermediate Heat Exchanger
18b directly heats intermediate working medium, reduces heat losses, meanwhile, under heating mode, in intermediate working medium cycling element
Intermediate working medium flows through Intermediate Heat Exchanger 18b, the first apparatus for treating indoor air 10, First Heat Exchanger 11, circulating pump and the 4th
Control valve 8b, intermediate working medium are no longer pass through evaporator, are further reduced heat losses.Pass through adding for Intermediate Heat Exchanger 18b
Heat effect makes intermediate working medium temperature rise to 5 ~ 60 DEG C or so.
When whole thermal energy required for the first apparatus for treating indoor air 10 undertakes user side, compression heat pump cycling element stops
It only works, the intermediate working medium cycling element work that only heat source heating unit is heated meets thermal energy whole needed for user.
When thermal energy required for 13 shared user side of the first apparatus for treating indoor air 10 and the second apparatus for treating indoor air, heat source adds
The intermediate working medium cycling element and compression heat pump cycling element that hot cell is heated work, added by heat source heating unit
The intermediate working medium cycling element of heat produces higher temperature working media, and working media is first through the first apparatus for treating indoor air 10
Partial heat energy required for directly taking on user, the First Heat Exchanger 11 for entering back into compression heat pump cycling element exchange heat, compression
Heat pump cycle unit recycles the thermal energy contained by intermediate working medium, when the second apparatus for treating indoor air 13 independently undertakes use
Required for the side of family during thermal energy, intermediate working medium cycling element is stopped, and compression heat pump cycling element is produced needed for user
The whole heating loads wanted.
Intermediate working medium cycling element and compression heat pump cycling element in the present invention can both work together, also can be only
Vertical work；When intermediate working medium cycling element and compression heat pump cycling element work together, the driving of heat source heating unit
Jet refrigeration circulation unit produces lower temperature working media（Or heat source heating unit directly heats intermediate working medium and produces
Higher temperature working media）, part cold required for intermediate working medium first undertakes user through the first apparatus for treating indoor air 10
（Or heating load）, the First Heat Exchanger 11 for entering back into compression heat pump cycling element exchanges heat, and passes through compression type heat pump circulation list
Member recycles the cold contained by intermediate working medium（Or thermal energy）, capacity usage ratio is improved, meanwhile, compression heat pump follows
Ring element also produces cold using outdoor heat exchanger 16（Or heat）Undertake a part of air-conditioning refrigeration duty（Or thermal energy）；In the middle
Between working media cycling element work independently when, using heat source heating unit driving jet refrigeration circulation unit produce lower temperature
Working media（Or heat source heating unit directly heats working media and produces higher temperature working media）, at the first room air
Reason device 10 undertakes whole colds required for user（Or heat）；When compression heat pump cycling element works independently, compression
Heat pump cycle unit provides whole colds required for user（Or heating load）.
Claims (7)
1. a kind of heat pump air conditioning system, including heat source heating unit and intermediate working medium cycling element, it is characterised in that：Also wrap
The jet refrigeration circulation unit being connect by heat exchanger with intermediate working medium cycling element is included, jet refrigeration circulation unit includes
Generator, injector, regenerator, condenser, first throttle component, evaporator and working medium pump, generator have refrigerant vapour
Outlet and refrigerant inlet, injector tool there are two fluid inlet and a fluid nozzle, one in two fluid inlets with
Refrigerant vapour outlet, another connect with the heat exchange coil inside evaporator, and the fluid nozzle of injector passes through backheat
First heat exchange coil of device and the entrance of condenser connect, and the outlet of condenser passes through inside first throttle component and evaporator
Heat exchange coil connects, and the fluid inlet of working medium pump is connected between condenser and first throttle component, and the outlet of working medium pump passes through
Second heat exchange coil of regenerator and the refrigerant inlet of generator connect, and heat source heating unit includes being arranged in parallel, can selecting one
The first heat source passages and Secondary Heat Source channel opened, heat source heating unit have thermal source inlet and thermal source outlet, the first heat source
The arrival end of channel and the arrival end of Secondary Heat Source channel are connected respectively with thermal source inlet, the port of export of the first heat source passages and
The port of export of two heat source passages is connected respectively with thermal source outlet, and the first control valve has been arranged in series on the first heat source passages and has been used for
For the spiral heater of generator heating, the first heat source passages pass through generator and spiral heater is located inside generator,
Secondary Heat Source Tandem is provided with the second control valve and the Intermediate Heat Exchanger for exchanging heat with intermediate working medium cycling element,
Secondary Heat Source channel is connect by the Intermediate Heat Exchanger with intermediate working medium cycling element, intermediate working medium cycling element
Including circulating pump, the first indoor processor, third control valve, the 4th control valve, the outlet of circulating pump is divided into two-way, wherein all the way
It is connected by the intermediate working medium entrance of third control valve and evaporator, another way passes through the 4th control valve and intermediate heater
Connection, the intermediate working medium outlet of evaporator are connected between intermediate heater and the first indoor processor, third control valve
A unlatching is selected with the 4th control valve；Heat pump air conditioning system in cooling mode, open by the first control valve and third control valve, and second
Control valve and the 4th control valve are closed, and heat pump air conditioning system in a heating mode, close by the first control valve and third control valve, the
Two control valves and the 4th control valve are opened.
2. heat pump air conditioning system according to claim 1, it is characterised in that：It further includes to recycle with intermediate working medium
The compression heat pump cycling element of unit heat exchange, the compression heat pump cycling element include apparatus for treating indoor air, Interior Space
Treatment apparatus is connected in parallel to the first compression circulation canal and the second compression circulation canal, and the first compression circulation canal is equipped with first
Compressor and the heat exchanger for exchanging heat with the intermediate working medium cycling element, the second compression circulation canal are equipped with the second pressure
Contracting machine and outdoor air heat exchanger.
3. heat pump air conditioning system according to claim 1 or 2, it is characterised in that：Heat source heating unit includes low-grade heat
Energy heating unit, the low grade heat energy heating unit are solar heat collector.
4. heat pump air conditioning system according to claim 2, it is characterised in that：Jet refrigeration circulation unit uses refrigeration work
Matter is HFC classes or HC class refrigerants, and the working media of intermediate working medium cycling element is that water, saline solution or ethylene glycol are molten
Liquid, the refrigeration working medium of compression heat pump cycling element is HFC classes or HC class refrigerants.
5. heat pump air conditioning system according to claim 2, it is characterised in that：The Interior Space of intermediate working medium cycling element
Treatment apparatus is radiant panel, air cooling fin pipe heat exchanger or spray chamber, and the room air of compression heat pump cycling element is handled
Device is water-cooled heat exchanger or air-cooled heat exchanger.
6. heat pump air conditioning system according to claim 2, it is characterised in that：Second compression circulation canal on heat exchanger be
Plate heat exchanger, double pipe heat exchanger or shell and tube exchanger.
7. heat pump air conditioning system according to claim 2, it is characterised in that：The outdoor air heat exchanger is air-cooled wing
Piece heat exchange of heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636515.5A CN105222395B (en) | 2015-09-30 | 2015-09-30 | A kind of heat pump air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636515.5A CN105222395B (en) | 2015-09-30 | 2015-09-30 | A kind of heat pump air conditioning system |
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| Publication Number | Publication Date |
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| CN105222395A CN105222395A (en) | 2016-01-06 |
| CN105222395B true CN105222395B (en) | 2018-06-08 |
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| CN201510636515.5A Active CN105222395B (en) | 2015-09-30 | 2015-09-30 | A kind of heat pump air conditioning system |
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| CN110486954A (en) * | 2019-09-20 | 2019-11-22 | 河南科技大学 | A kind of Weatherproof multifunctional solar air source heat pumps system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6000211A (en) * | 1997-06-18 | 1999-12-14 | York Research Corporation | Solar power enhanced combustion turbine power plant and methods |
| CN101963412B (en) * | 2010-10-18 | 2012-09-26 | 河南科技大学 | Solar energy and electric energy combined heat pump system and cooling and heating method |
| CN102679618B (en) * | 2011-11-14 | 2014-05-07 | 河南科技大学 | Solar energy driven jetting type refrigerating system |
| CN102809246A (en) * | 2012-08-08 | 2012-12-05 | 中原工学院 | Multi-condenser combined solar jet air-conditioning unit |
| CN104132477B (en) * | 2014-07-18 | 2016-08-24 | 中原工学院 | Preheating type solar energy jetting-compression combined refrigeration system |
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Effective date of registration: 20210331 Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. Address before: 471003 No. 48, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: HENAN University OF SCIENCE AND TECHNOLOGY |
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Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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