CN206973792U - Direct expansion type air conditioning system - Google Patents
Direct expansion type air conditioning system Download PDFInfo
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- CN206973792U CN206973792U CN201720938665.6U CN201720938665U CN206973792U CN 206973792 U CN206973792 U CN 206973792U CN 201720938665 U CN201720938665 U CN 201720938665U CN 206973792 U CN206973792 U CN 206973792U
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- 238000004378 air conditioning Methods 0.000 title abstract description 4
- 239000003507 refrigerant Substances 0.000 claims abstract description 81
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000005057 refrigeration Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Other Air-Conditioning Systems (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to a formula of directly expanding air conditioning system, include: the heat exchanger comprises a refrigerant circulating loop with a compressor (15), a throttling device, an outdoor heat exchange unit (21) and an indoor heat exchange unit (3), wherein the outdoor heat exchange unit (21) comprises at least two sets of direct expansion type heat pump subsystems adopting different heat sources, and direct heat exchange between the refrigerant circulating in the direct expansion type heat pump subsystems and the heat sources can be realized. The utility model discloses the direct heat exchange that carries out with the heat source of different grade type of the refrigerant of circulation among the utilization direct expansion formula heat pump subsystem, the middle heat transfer device who carries out energy transfer between refrigerant and the heat source has been saved, thereby need not to design the relevant conveying equipment of secondary heat medium, make overall structure more simplify, the transport power consumption and the refrigerant energy loss have also been reduced, and then the system efficiency has been improved, in addition through the refrigeration/the demand of heating that the direct expansion formula heat pump subsystem that adopts different heat sources can adapt to different operating modes as outdoor heat transfer unit.
Description
Technical field
It the utility model is related to field of air conditioning, more particularly to a kind of straight-expansion type air conditioner system.
Background technology
The energy is human survival and the material base of social development, is not only the power of the national economic development, and is weighing apparatus
Measure the important indicator of national overall national strength and living standards of the people.With the propulsion of process of industrialization, Chinese national economy and section
The development that skill is advanced by leaps and bounds, the demand and consumption to all kinds of resources are also growing day by day.As can be seen here, energy and environment are asked
Topic has turned into " bottleneck " problem of constraint China's process of industrialization and socio-economic development, improves efficiency of energy utilization, implements section
Energy emission reduction policy, it is the severe energy of reply, the needs of environment situation, and realizes the only way which must be passed of sustainable development.
Heat pump is a kind of environment-friendly high-efficiency energy-saving, the system that the energy can be provided to heating, air-conditioning and domestic hot-water.
It is several big that soil source heat pump, water resource heat pump, air source heat pump, solar heat pump etc. can be roughly divided into according to the energy difference of acquisition
Class.Existing heat pump generally uses the form of secondary heat exchange, and system energy efficiency is relatively low, and overall structure is complex,
Investment and operating cost are higher.And existing direct-expansion type heat pump is limited to the limitation of single source type, it is difficult to adapt to
Refrigerating/heating demand under various working.
Utility model content
The purpose of this utility model is to propose a kind of straight-expansion type air conditioner system, it is possible to increase system energy efficiency, and can adapt to
Refrigerating/heating demand under various working.
To achieve the above object, the utility model provides a kind of straight-expansion type air conditioner system, including：With compressor, section
The refrigerant circulation loop of device, outdoor heat exchange unit and indoor heat exchange unit is flowed, wherein, the outdoor heat exchange unit is included extremely
Few two sets of direct-expansion type heat pump subsystems for using different heat sources, the refrigeration of circulation in the direct-expansion type heat pump subsystem can be realized
Direct heat exchange between agent and thermal source.
Further, at least two sets of direct-expansion type heat pump subsystems are arranged in parallel in the refrigerant circulation loop,
And the switching of autonomous working and the joint coordination work of at least two sets direct-expansion type heat pump subsystems is realized by valve.
Further, at least two sets of direct-expansion type heat pump subsystems be included in underground pipe circulating refrigerant with realize with
The underground pipe direct-expansion type heat pump subsystem of soil direct heat transfer and directly the refrigerant of circulation is entered in solar energy collection radiator
Row evaporation or the solar energy direct-expansion type heat pump subsystem of condensation.
Further, the underground pipe direct-expansion type heat pump subsystem and the solar energy direct-expansion type heat pump subsystem parallel connection are set
Put in the refrigerant circulation loop, and in the underground pipe direct-expansion type heat pump subsystem and the solar energy direct-expansion type heat pump
The valve that control refrigerant circulates in this subsystem is equipped with subsystem, can be realized by the opening and closing of the valve described
The thermal source selection of outdoor heat exchange unit and the supplement of power capability.
Further, the outdoor heat exchange unit is used as main outdoor heat exchange list using the underground pipe direct-expansion type heat pump subsystem
Member, heat exchange unit outside ancillary chamber is used as using the solar energy direct-expansion type heat pump subsystem.
Further, at least two sets of direct-expansion type heat pump subsystems also include air-source direct-expansion type heat pump subsystem.
Further, the indoor heat exchange unit is included using refrigerant as the direct flooring radiation for directly heating heating agent
Heating system.
Further, the indoor heat exchange unit also includes the indoor heat exchanger for realizing indoor temperature regulation.
Further, hot water unit is also parallel with the connecting tube section of the exhaust outlet of the compressor, by described
Refrigerant in refrigerant circulation loop heats to the circulation water in the hot water unit.
Further, the connecting tube section of the exhaust outlet of the compressor and the parallel transistor section where the hot water unit
In be equipped with valve, the switching of refrigerant flow direction can be realized by the open and close controlling of valve.
Further, the hot water unit includes heat recovering heat exchanger, can from refrigerant draw heat, and in institute
The circulation water stated in heat recovering heat exchanger is heated.
Further, the hot water unit also includes electric heating device, can aid in the heat recovering heat exchanger to
Circulation water in the heat recovering heat exchanger is heated.
Further, high pressure fluid reservoir, energy are additionally provided between the outdoor heat exchange unit and the indoor heat exchange unit
It is enough that unnecessary refrigerant is stored according to refrigerant requirements amount in the refrigerant circulation loop under different operating modes.
Further, four-way valve is also included in the refrigerant circulation loop, can realize that kind of refrigeration cycle and heating follow
The switching of ring.
Further, the throttling arrangement is arranged between the outdoor heat exchange unit and the indoor heat exchange unit, and
The throttling arrangement includes：At least two be connected in the refrigerant circulation loop be opened and closed restricting element and respectively with institute
The check valve that restricting element is arranged in parallel can be opened and closed by stating, and the flow direction of at least two check valves is different.
Further, solar-energy photo-voltaic cell is also included in the solar energy direct-expansion type heat pump subsystem, for described
Compressor provides electric power.
Based on above-mentioned technical proposal, the utility model uses at least two sets of direct-expansion type heat pump subsystems in outdoor heat exchange unit
System, heat exchange directly is carried out with different types of thermal source using the refrigerant to be circulated in direct-expansion type heat pump subsystem, eliminates system
The intermediate heat transfer device of carry out energy transmission between cryogen and thermal source, without secondary heating agent in the heat-exchanger rig of design centre
Associated conveying devices so that overall structure is more simplified, decreases the power consumption in course of conveying and refrigerant circulating process
In energy loss, and then system energy efficiency is improved, in addition by using the direct-expansion type heat pump subsystem of different heat sources as room
Outer heat exchange unit can adapt to the refrigerating/heating demand of different operating modes.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the principle schematic of an embodiment of the utility model straight-expansion type air conditioner system.
Embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
As shown in figure 1, the principle schematic of the embodiment for the utility model straight-expansion type air conditioner system.In the present embodiment
In, straight-expansion type air conditioner system includes the system with compressor 15, throttling arrangement, outdoor heat exchange unit 21 and indoor heat exchange unit 3
Refrigerant cycle loop.Compressor 15 can discharge from exhaust outlet by the refrigerant of HTHP, by throttling arrangement, outdoor heat exchange
The air entry of compressor 15 is returned to after the function element such as unit 21 and indoor heat exchange unit 3, is returned so as to form refrigerant circulation
Road.The setting of compressor 15, throttling arrangement, outdoor heat exchange unit 21 and indoor heat exchange unit 3 is sequentially not limited to shown in Fig. 1
Sequentially, as long as complete refrigerant circulation loop can be realized.In addition to these functional units, the present embodiment also may be used
To increase the functional parts such as gas-liquid separator 14, high pressure fluid reservoir.
In the straight-expansion type air conditioner system of the present embodiment, outdoor heat exchange unit 21 can include at least two sets and use different heat
The direct-expansion type heat pump subsystem in source, it can realize straight between the refrigerant and thermal source of circulation in the direct-expansion type heat pump subsystem
Connect heat exchange.Outdoor heat exchange function is realized by using the direct-expansion type heat pump subsystem of different heat sources, can be directed to different
Operating mode carries out the selection and collocation of subsystem, and then meets the cooling and warming demand under different operating modes.Moreover, direct-expansion type heat pump is sub
The refrigerant to be circulated in system directly can carry out heat exchange with different types of thermal source, eliminate between refrigerant and thermal source
The intermediate heat transfer device of energy transmission is carried out, without the associated conveying devices of secondary heating agent in the heat-exchanger rig of design centre,
So that overall structure is more simplified, the energy loss in the power consumption and refrigerant circulating process in course of conveying is decreased, is entered
And improve system energy efficiency.
For outdoor heat exchange unit, at least two sets of direct-expansion type heat pump subsystems can select making according to design requirement
Access way in refrigerant cycle loop, such as series connection access way, connection in series-parallel access way etc., it is preferred to use access side in parallel
Formula, i.e., at least two sets of direct-expansion type heat pump subsystems are arranged in parallel in the refrigerant circulation loop.So, can by valve
With the switching of convenient autonomous working and the joint coordination work for realizing at least two sets direct-expansion type heat pump subsystems.
Fig. 1 implements to be illustrated the example of two kinds of direct-expansion type heat pump subsystems, including underground pipe direct-expansion type heat pump subsystem
With solar energy direct-expansion type heat pump subsystem.Wherein, underground pipe direct-expansion type heat pump subsystem has the underground pipe being embedded in soil, and
When straight-expansion type air conditioner system operation, refrigerant can circulate in underground pipe 1, and with soil direct heat transfer.During cooling in summer,
Underground pipe direct-expansion type heat pump subsystem can be used as condenser to be radiated to soil, and when heating in the winter time, then as evaporator from
Heat is absorbed in soil.By this direct heat transfer mode, eliminate Intermediate Heat Exchanger and pipeline needed for related recuperated cycle,
Pump and valve, make overall system structure more simple, heat exchange efficiency is also improved.On the other hand, underground pipe is not easy
The problem of freezing, therefore without adding antifreezing agent in the refrigerant.
Solar energy direct-expansion type heat pump subsystem may particularly include solar energy collection radiator 2, and solar energy collection radiator 2 can be inhaled
Solar energy is received to realize the evaporation of the refrigerant of its inner loop or condensation.By way of direct heat transfer, it can make too
Positive transformation of energy is more efficient, while structure is also more simple and practical.When solar energy direct-expansion type heat pump subsystem is directly swollen with underground pipe
When formula heat pump subsystem is coordinated, the refrigerating/heating under more multi-state can be met while higher system energy efficiency is realized
Demand.In addition, solar-energy photo-voltaic cell is can further include in solar energy direct-expansion type heat pump subsystem, for the pressure
Contracting machine 15 provides electric power, so as to realize whole straight-expansion type air conditioner system low energy consumption, or even the operation of zero energy consumption.
With reference to figure 1, underground pipe direct-expansion type heat pump subsystem and solar energy direct-expansion type heat pump subsystem are preferably arranged in parallel
In the refrigerant circulation loop, and in the underground pipe direct-expansion type heat pump subsystem and the solar energy direct-expansion type heat pump subsystem
The valve 20,19 that control refrigerant circulates in this subsystem is equipped with system, can be real by the opening and closing of the valve 20,19
The thermal source selection of the existing outdoor heat exchange unit 21 and the supplement of power capability.Weather conditions are limited in view of solar energy, its
Heat supply or the ability less stable of radiating, and underground pipe therefore preferably outdoor heat exchange unit 21 with underground pipe direct-expansion type heat pump subsystem
System is as heat exchange unit outside main chamber.It is determined that the heat supply of solar energy direct-expansion type heat pump subsystem or heat-sinking capability meet duty requirements
When, underground pipe direct-expansion type heat pump subsystem can be aided in using solar energy direct-expansion type heat pump subsystem as heat exchange unit outside ancillary chamber
System carries out heat supply or radiating.When needing solar energy direct-expansion type heat pump subsystem to be aided in, by Open valve 19, and
When not needing solar energy direct-expansion type heat pump subsystem to be aided in, then valve 19 can be closed.Valve 19,20 can use electricity
Magnet valve, in order to which controller is controlled, valve 19,20 can also use other forms, such as manual or stroke type valve.
In a further embodiment, it is not to determine using the primary and secondary of the direct-expansion type heat pump subsystem of different heat sources, can
Flexibly selected with the climatic condition according to different regions or other factors.It is such as low according to the thermal-arrest cost of solar energy
It is honest and clean, by geological conditions less-restrictive the advantages that, can also be used as main chamber outside heat exchange unit use.If include underground pipe
The straight-expansion type air conditioner system of direct-expansion type heat pump subsystem and solar energy direct-expansion type heat pump subsystem still can not meet duty requirements,
Air-source direct-expansion type heat pump subsystem then can be further comprised at least two sets direct-expansion type heat pump subsystems, to utilize
Air-source meets the refrigerating/heating demand of system as thermal source.
Straight-expansion type air conditioner system in the winter time when disclosure satisfy that the heating demand of user, and compared to traditional hot water floor spoke
Penetrate heating system, the indoor heat exchange unit 3 in the utility model straight-expansion type air conditioner system preferably includes direct floor panel heating
System 6, for this directly radiant floor heating system 6 using refrigerant as heating agent is directly heated, refrigerant directly condenses heat release,
The intermediate link of energy transmission is not needed, without secondary heating agent, correspondingly also without induction systems such as circulating pump, airducts.
While heat transmission equipment is saved, energy transmission link and heat transfer resistance are decreased, and then reduces heating agent course of conveying
In heating agent itself energy loss and transmit the consumed energy.In addition, indoor heat exchange unit 3 can also include realizing
The indoor heat exchanger 5 of indoor temperature regulation, the indoor heat exchanger 5 can use the all-air system shown in Fig. 1, in another implementation
The air-water system with fan coil can also be used in example.
With reference to figure 1, hot water unit 4 can be also arranged in parallel on the connecting tube section of the exhaust outlet of compressor 15, utilizes pressure
The refrigerant for the HTHP that contracting machine 15 is discharged heats to the circulation in the hot water unit 4.For convenience of control, pressing
The connecting tube section of the exhaust outlet of contracting machine 15 is provided with valve 21, and valve 22 is provided with the parallel transistor section where hot water unit 4,
The switching of refrigerant flow direction can be realized by the open and close controlling of valve 21,22.If currently without water heating demand when, can
To close valve 22, Open valve 21, the refrigerant for discharging compressor 15 flows directly into the outdoor heat exchange list as condenser
First or indoor heat exchange unit, and if necessary to water heating when, valve 21 can be closed, Open valve 22, make the row of compressor 15
The refrigerant gone out is via the outdoor heat exchange unit or indoor heat exchange unit flowed to again after hot water unit 4 as condenser.Valve
21st, 22 magnetic valve can be used, in order to which controller is controlled, valve 21,22 can also use other forms, such as manually
Or the valve of stroke type.In another embodiment, hot water unit 4 can also be directly arranged in series in the exhaust of compressor 15
On the connecting tube section of mouth.
Hot water unit 4 includes heat recovering heat exchanger 16 (hot water case), can be from the refrigeration for the HTHP for flowing through itself
Draw heat in agent, and the circulation water in the heat recovering heat exchanger 16 is heated, heated circulation water can carry
User is supplied to use.When the area due to solar energy or underground pipe is limited heat recovering heat exchanger 16 can not be made to meet heating water temperature
Demand when, electric heating device 12 can also be further comprised in hot water unit 4, to aid in the heat recovering heat exchanger 16
Circulation water in the heat recovering heat exchanger 16 is heated.
The embodiment of above-mentioned straight-expansion type air conditioner system can meet the room of user side by different refrigerant circulation modes
The refrigeration demand or heating needs of interior heat exchange unit, in order to which the need that freeze can either be met in same set of straight-expansion type air conditioner system
Ask and also disclosure satisfy that heating needs, then can further comprise four-way valve 13 in refrigerant circulation loop, pass through four-way valve 13
Switching can change the flow direction of refrigerant in refrigerant circulation loop, and then realize kind of refrigeration cycle and heating circulation switching.
Correspondingly, the throttling arrangement in Fig. 1 is arranged between the outdoor heat exchange unit 21 and the indoor heat exchange unit 3, and described
Throttling arrangement includes：At least two be connected in the refrigerant circulation loop be opened and closed restricting element 7,8 and respectively with institute
The check valve 9,10 that restricting element 7,8 is arranged in parallel can be opened and closed by stating, and the flow direction of at least two check valves 9,10 is different.When
Four-way valve 13 switches and changes when flowing to of refrigerant, and different flow directions are combined with by the opening and closing that can be opened and closed restricting element 7,8
Check valve 9,10 disclosure satisfy that the throttling requirement of different operating modes.Restricting element 7,8, which can be opened and closed, can use the elements such as electronics expansion valve.
The feelings that refrigerant amount in loop exceedes the refrigerant requirements amount under current working are likely to occur in refrigerant circulation
Condition, and then high pressure fluid reservoir 11 is further set preferably between outdoor heat exchange unit 21 and indoor heat exchange unit 3, being capable of basis
Refrigerant requirements amount stores to unnecessary refrigerant in the refrigerant circulation loop under different operating modes, and in current working
During the more refrigerants of lower needs, further amounts of refrigerant can be provided to circulation loop by high pressure fluid reservoir 11.
The straight-expansion type air conditioner system embodiment shown in Fig. 1 is directed to, it can support following several operating mode operational modes, point
It is not：
(1) refrigerating/heating aqueous mode：Four-way valve 13 is powered off, and can be opened and closed restricting element 7 and close, and valve 20,22 is opened, valve
Door 21 is closed.Refrigerant flows through heat recovering heat exchanger 16 (hot water can be made), four-way valve 13 enters after the compression of compressor 15
Condensed in underground pipe 1, then pass sequentially through check valve 9, high pressure fluid reservoir 11, restricting element 8, user terminal gateway 18 can be opened and closed
Get in heat exchange unit 3, refrigerant indoors heat exchange unit 3 with after room direct heat transfer, via user terminal gateway 17, four
Port valve 13, then sucked after gas-liquid separator 14 by the air entry of compressor 15, participated in next time after being compressed by compressor 15
Circulation.The kind of refrigeration cycle is constantly repeated to maintain cooling in summer pattern.Whether valve 19, which is opened, may depend on the radiating of solar energy collection
Whether device 2 has enough heat-sinking capabilities, and controller can be according to underground pipe inlet temperature and solar energy collection radiator surface temperature pair
Valve 19 is controlled.
(2) heating/heating aqueous mode：It is electric on four-way valve 13, restricting element 8 can be opened and closed and closed, valve 19,20,22 is opened,
Valve 21 is closed.Refrigerant by compressor 15 compression after, flow through heat recovering heat exchanger 16 (hot water can be made), four-way valve 13,
User gateway 17 gets in heat exchange unit 3, the refrigerant direct radiant floor heating system 6 in heat exchange unit 3 indoors
With, with room direct heat transfer, to realize that heating and indoor air temperature are adjusted, then pass sequentially through check valve in indoor heat exchanger 5
10th, high pressure fluid reservoir 11, restricting element 7 can be opened and closed enter underground pipe 1 and solar energy collection radiator 2, then by the He of four-way valve 13
Sucked after gas-liquid separator 14 by the air entry of compressor 15, participate in circulating next time after being compressed by compressor 15.Valve 20 is
No open depends on whether solar energy collection radiator 2 has enough heat capacities.When outdoor temperature is very low and without the sun, due to
Underground pipe whole year temperature substantially constant, it can equally meet hot water demand simultaneously in heating, and hot water unit 4 can be closed or do not set
Put electric heating device.
Above two operating mode operational mode can realize cooling in summer jointly, winter heating, the demand of annual water heating, and
If it is desired to not water heating when freezing or heating, then can close the valve 22 in the place parallel transistor section of hot water unit 4, open pressure
The valve 21 in the connecting tube section of the exhaust outlet of contracting machine 12, to cause the refrigerant that compressor 15 is discharged to be flowed to by connecting tube section
Four-way valve 13, and when wishing to switch back into the operating mode operational mode of water heating, then valve 21 need to only be closed, valve 22, which is opened, is
Can.And corresponding foregoing refrigerating/heating aqueous mode is only refrigeration mode, and foregoing heating/heating aqueous mode is as only made
Heat pattern, the specific cyclic process of refrigerant refer to foregoing two kinds of operating mode operational modes, repeated no more here.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (16)
1. a kind of straight-expansion type air conditioner system, including：With compressor (15), throttling arrangement, outdoor heat exchange unit (21) and interior
The refrigerant circulation loop of heat exchange unit (3), it is characterised in that the outdoor heat exchange unit (21) includes at least two sets using not
With the direct-expansion type heat pump subsystem of thermal source, can realize in the direct-expansion type heat pump subsystem between the refrigerant and thermal source of circulation
Direct heat exchange.
2. straight-expansion type air conditioner system according to claim 1, it is characterised in that at least two sets of direct-expansion type heat pump subsystems
System is arranged in parallel in the refrigerant circulation loop, and realizes at least two sets of direct-expansion type heat pump subsystems by valve
The switching to work independently with joint coordination work.
3. straight-expansion type air conditioner system according to claim 1, it is characterised in that at least two sets of direct-expansion type heat pump subsystems
System be included in underground pipe (1) circulating refrigerant with realize with the underground pipe direct-expansion type heat pump subsystem of soil direct heat transfer and
The solar energy direct-expansion type heat pump subsystem that directly refrigerant of circulation is evaporated or condensed in solar energy collection radiator (2).
4. straight-expansion type air conditioner system according to claim 3, it is characterised in that the underground pipe direct-expansion type heat pump subsystem
It is arranged in parallel with the solar energy direct-expansion type heat pump subsystem in the refrigerant circulation loop, and it is directly swollen in the underground pipe
It is equipped with what control refrigerant circulated in this subsystem in formula heat pump subsystem and the solar energy direct-expansion type heat pump subsystem
Valve (20,19), by the opening and closing of the valve (20,19) can realize the outdoor heat exchange unit (21) thermal source selection and
The supplement of power capability.
5. straight-expansion type air conditioner system according to claim 4, it is characterised in that the outdoor heat exchange unit (21) is with described
Underground pipe direct-expansion type heat pump subsystem is used as auxiliary as heat exchange unit outside main chamber using the solar energy direct-expansion type heat pump subsystem
Outdoor heat exchange unit.
6. straight-expansion type air conditioner system according to claim 3, it is characterised in that at least two sets of direct-expansion type heat pump subsystems
System also includes air-source direct-expansion type heat pump subsystem.
7. straight-expansion type air conditioner system according to claim 1, it is characterised in that the indoor heat exchange unit (3) includes adopting
The direct radiant floor heating system (6) for directly heating heating agent is used as by the use of refrigerant.
8. straight-expansion type air conditioner system according to claim 7, it is characterised in that the indoor heat exchange unit (3) also includes
Realize the indoor heat exchanger (5) of indoor temperature regulation.
9. straight-expansion type air conditioner system according to claim 1, it is characterised in that in the exhaust outlet of the compressor (15)
Hot water unit (4) is also parallel with connecting tube section, by the refrigerant in the refrigerant circulation loop to the hot water list
Circulation water in first (4) is heated.
10. straight-expansion type air conditioner system according to claim 9, it is characterised in that the exhaust outlet of the compressor (15)
Valve is equipped with parallel transistor section where connecting tube section and the hot water unit (4), passes through the open and close controlling energy of valve
Enough realize the switching of refrigerant flow direction.
11. straight-expansion type air conditioner system according to claim 9, it is characterised in that the hot water unit (4) includes recuperation of heat
Heat exchanger (16), can from refrigerant draw heat, and the circulation water in the heat recovering heat exchanger (16) is added
Heat.
12. straight-expansion type air conditioner system according to claim 11, it is characterised in that the hot water unit (4) also includes electricity
Auxiliary heater (12), the heat recovering heat exchanger (16) can be aided in the circulation water in the heat recovering heat exchanger (16)
Heated.
13. straight-expansion type air conditioner system according to claim 1, it is characterised in that in the outdoor heat exchange unit (21) and
High pressure fluid reservoir (11) is additionally provided between the indoor heat exchange unit (3), can be according to the refrigerant circulation under different operating modes
Refrigerant requirements amount stores to unnecessary refrigerant in loop.
14. straight-expansion type air conditioner system according to claim 1, it is characterised in that in the refrigerant circulation loop also
Including four-way valve (13), the switching of kind of refrigeration cycle and heating circulation can be realized.
15. straight-expansion type air conditioner system according to claim 14, it is characterised in that the throttling arrangement is arranged on the room
Between outer heat exchange unit (21) and the indoor heat exchange unit (3), and the throttling arrangement includes：At least two be connected on it is described
Being opened and closed restricting element (7,8) and be arranged in parallel respectively with the restricting element (7,8) that is opened and closed in refrigerant circulation loop
Check valve (9,10), the flow direction of at least two check valves (9,10) is different.
16. straight-expansion type air conditioner system according to claim 3, it is characterised in that the solar energy direct-expansion type heat pump subsystem
Also include solar-energy photo-voltaic cell in system, for providing electric power to the compressor (15).
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| CN201720938665.6U CN206973792U (en) | 2017-07-31 | 2017-07-31 | Direct expansion type air conditioning system |
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| CN201720938665.6U CN206973792U (en) | 2017-07-31 | 2017-07-31 | Direct expansion type air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238163A (en) * | 2017-07-31 | 2017-10-10 | 珠海格力电器股份有限公司 | Direct expansion type air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238163A (en) * | 2017-07-31 | 2017-10-10 | 珠海格力电器股份有限公司 | Direct expansion type air conditioning system |
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