CN107120831B - A kind of continuous heating air friction drag - Google Patents
A kind of continuous heating air friction drag Download PDFInfo
- Publication number
- CN107120831B CN107120831B CN201710390318.9A CN201710390318A CN107120831B CN 107120831 B CN107120831 B CN 107120831B CN 201710390318 A CN201710390318 A CN 201710390318A CN 107120831 B CN107120831 B CN 107120831B
- Authority
- CN
- China
- Prior art keywords
- valve
- compressor
- evaporator
- interface
- way reversing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
- F25B2347/023—Set point defrosting
Abstract
The present invention discloses a kind of continuous heating air friction drag, including water-cooled condenser (7) and two compressors (1,3), two air-cooled evaporators (12,14), two throttle valve components (11,10), it further include three check valves (4,5,9), two four-way reversing valves (8,13), one compressor, an evaporator, a throttle valve component chain control are at a vapor-compression group, two vapor-compression groups are realized by organic switching of four-way reversing valve and are alternately defrosted, and make that heating operations continuous and stable, reliable for operation, low energy consumption for defrosting.
Description
Technical field
The invention belongs to air source heat pump technical field, especially a kind of structure is simple, control is simple and reliable, low energy consumption
The air friction drag of continuous heating.
Background technique
In China In Middle And Lower Reaches of Changjiang River, when air source heat pump is run under outdoor cryogenic conditions, work as outdoor heat exchanger
Surface temperature will lead to heat exchanger surface frosting lower than surrounding air dew-point temperature and when being lower than 0 DEG C.Evaporator surface frosting meeting
The heat transfer resistance of outdoor heat exchanger is caused to increase, the reduction of air communication channel area, so as to cause outdoor heat exchanger ventilation quantity drop
It is low, eventually lead to heat pump unit heating capacity reduce, heating performance decline, or even there is low pressure alarming and delivery temperature is excessive equal former
Barrier.Therefore, it is periodically defrosted to heat pump unit outdoor heat exchanger particularly significant.
Most widely used at present Defrost mode is four-way reversing valve commutation defrosting mode, i.e., presses when heat pump air conditioner defrosts
Refrigeration cycle mode is run, and compressor air-discharging enters outdoor heat exchanger, is absorbed frost layer heat and is condensed, then enters through throttling set
Indoor heat exchanger returns to compressor after indoor absorption partial heat, completes defrosting circulation.The problem of this Defrost mode maximum
Cannot exactly heating be continued and room temperature is caused to decline, refrigerant reverse flow when influencing indoor comfort, and defrosting,
When frequent high-low pressure conversion will cause equipment impact and operating condition switching in operational process the problem of compressor air suction band liquid, increase simultaneously
The power consumption for heating pump assembly, reduces the heating performance and operational reliability of unit.
In recent years, the reverse defrosting mode of bypass throttle device, the modes such as reverse defrosting mode with refrigerant compensator
It is influenced comfortably when achieving preferable effect to the improvement of traditional defrosting mode, but being still unavoidable from defrosting from indoor heat absorption
The problem of property.Several novel defrosting modes can solve the problems, such as comfort, such as accumulation of heat defrosting, hot gas bypass defrosting very well
And return-air heats defrosting these types defrosting mode, is avoided that when Defrost operation and takes heat from interior and ask room temperature reduction
The appearance of topic.But there is also some problems, for example phase-change material used in thermal storage defrosting needs and heat needed for defrosting
Preferably matched, and hot gas bypass defrosting and return-air heating defrosting then need to be arranged in systems the biggish gas-liquid of capacity
Separator increases the cost of defrosting indirectly.And indoor heat exchanger is not from room when these types of mode only can guarantee defrosting
Interior draw heat, condenser heats when not ensuring that defrosting, and there is a problem of that defrosting energy consumption is high.
In recent years, experts and scholars propose the unit alternately to defrost using two groups of evaporators, such as Chinese utility model
Patent " a kind of double evaporators air source heat pump ", (application number: 201420523171.8, publication date: 2015-03-11).The system
In two evaporators need to carry out compressor load energy adjustment to adapt to Load Evaporator, if lacking reliable when alternately defrosting
It is too low and influence entire heat pump system reliability of operation that energy adjustment means then easily lead to evaporating pressure, and excessive electromagnetism
Valve makes control complicated.
Summary of the invention
The purpose of the present invention is to provide a kind of continuous heating air friction drag, control simple and reliable, low temperature
Low energy consumption for defrosting, and heating operations continuous and stable under low temperature environment.
The technical solution for realizing the aim of the invention is as follows:
A kind of continuous heating air friction drag, including water-cooled condenser, the first compressor, the second compressor,
Air-cooled first evaporator, air-cooled second evaporator, first throttle valve module and second throttle component, further include third list
To valve, the first four-way reversing valve and the second four-way reversing valve, first exhaust outlet of compressor is through the first check valve and condenser
Entrance communicates, and the second exhaust outlet of compressor is communicated through second one-way valve with condenser inlet, and the of first four-way reversing valve
One interface is connected with the second interface of the second four-way reversing valve, second interface and the condensator outlet phase of the first four-way reversing valve
Even, the third interface of the first four-way reversing valve is connected with third check valve inlet, and the outlet of third check valve passes through first throttle
Valve module is communicated with the first evaporator inlet, and the outlet of third check valve passes through second throttle component and the second evaporator inlet
It communicates, the first interface of second four-way reversing valve is connected with the first evaporator outlet, and the third of the second four-way reversing valve connects
Mouth is connected with the second evaporator outlet, and the 4th interface of the first four-way reversing valve is in parallel with the 4th interface of the second four-way reversing valve
It is communicated afterwards with the air entry of the first compressor, the second compressor.
Compared with prior art, the present invention its remarkable advantage are as follows:
1, heating operations continuous and stable: during defrosting, unit heats simultaneously, improves the stability of added hot water temperature；
2, reliable for operation: during defrosting, refrigerant improves the reliability of heat pump system without commutation；Compared with epipodium
At a temperature of border when heating operation, can by adjust wherein evaporator as subcooler and combine adjusting compressor start-up and shut-down control,
The energy adjustment of unit heating capacity can be achieved, to improve unit in annual heating operation to the adaptability of high environment temperature.
3, low energy consumption for defrosting: using double-compressor parallel mode, it is ensured that effective energy of the compressor when alternately defrosting
It adjusts；Defrosting process is because using the excessively cold and hot of the condensed high-temperature liquid state refrigerant of condensator outlet, to defrosting evaporator conduct
Subcooler realizes nearly zero energy consumption of defrosting process, improves the defrosting efficiency and performance of heat pump unit；When frosting is serious, can adopt
It is defrosted with the superheated steam of defrosting bypass pipe bypass with the excessively cold and hot mode combined, accelerates defrosting process, improve defrosting
Efficiency.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of continuous heating air friction drag of the present invention, and fortune is normally heated in low temperature
Row mode.
Fig. 2 is that continuous heating air friction drag described in Fig. 1 is in the first air-cooled condenser Defrost operation mode
Working principle diagram.
Fig. 3 is that continuous heating air friction drag described in Fig. 1 is in the second air-cooled condenser Defrost operation mode
Or the working principle diagram of high temperature heating mode.
In figure, the first compressor 1, gas-liquid separator 2, the second compressor 3, second one-way valve 4, the first check valve 5, hot gas
By-passing valve 6, water-cooled condenser 7, the first four-way reversing valve 8, third check valve 9, second throttle component 10, first throttle valve group
Part 11, the first evaporator 12, the second four-way reversing valve 13, the second evaporator 14, compensator 15, oil equalizing pipe 16.
Specific embodiment
As shown in Figure 1, continuous heating air friction drag of the present invention, including water-cooled condenser 7, the first compressor
1, the second compressor 3, air-cooled first evaporator 12, air-cooled second evaporator 14, first throttle valve module 11 and the second section
Valve module 10 is flowed, further includes third check valve 9, the first four-way reversing valve 8 and the second four-way reversing valve 13, first compressor
1 exhaust outlet is communicated through the first check valve 5 with 7 entrance of condenser, and 3 exhaust outlet of the second compressor is through second one-way valve 4 and condenser 7
Entrance communicates, the second interface 13-2 phase of the first interface 8-1 of first four-way reversing valve 8 and the second four-way reversing valve 13
Even, the second interface 8-2 of the first four-way reversing valve 8 is connected with the outlet of condenser 7, the third interface 8-3 of the first four-way reversing valve 8
It is connected with 9 import of third check valve, the outlet of third check valve 9 passes through 12 entrance of first throttle valve module 11 and the first evaporator
It communicates, the outlet of third check valve 9 is communicated by second throttle component 10 with 14 entrance of the second evaporator, second four-way
The outlet of the first interface 13-1 of reversal valve 13 and the first evaporator 12 is connected, the third interface 13-3 of the second four-way reversing valve 13 and
The outlet of second evaporator 14 is connected, the 4th interface 8-4 of the first four-way reversing valve 8 and the 4th interface of the second four-way reversing valve 13
It is communicated after 13-4 is in parallel with the air entry of the first compressor 1, the second compressor 3.
Further include hot gas bypass valve 6 as an improvement, continuous heating air friction drag of the present invention, one end with
7 entrance of condenser is connected, and the other end is connected with the outlet of condenser 7.
When merely with high temperature and pressure supercooling refrigerant liquid it is excessively cold and hot defrost to evaporator when, be easy defrosting slowly,
Hot gas bypass valve 6 is opened at this time, will be subcooled after refrigerant liquid is mixed with high temperature and pressure compressor air-discharging and is sent into the steaming for needing to defrost
Device is sent out, defrosting speed is accelerated.
As another improvement, continuous heating air friction drag of the present invention further includes gas-liquid separator 2, goes out
Mouth is communicated with the air entry of the first compressor 1, the second compressor 3 respectively, the 4th interface of entrance and the first four-way reversing valve 8
4th interface 13-4 of 8-4 and the second four-way reversing valve 13 is communicated.
As another refinement, continuous heating air friction drag of the present invention further includes compensator 15, open end
It is communicated with the outlet of third check valve 9.
Preferably, the blower of first evaporator 12 and the blower of the second evaporator 14 are respectively configured, and individually control.
It is further preferred that the blower of the first throttle valve module 11, the first compressor 1 and the first evaporator 12 is chain
Control, the blower chain control of the second throttle component 10, the second compressor 3 and the second evaporator 14.
It further include oil equalizing pipe 16 as another improvement, one end is connected with 1 bottom of the first compressor, the other end and second
3 bottom of compressor is connected.Prevent two evaporator oil returns uneven.
The 1-3 course of work that the present invention will be described in detail with reference to the accompanying drawing.
The normal heating operation mode of a low temperature
Start the blower of the first compressor 1 and the first evaporator 12 first, opens first throttle valve module 11, the first compression
Machine 1 exports after high temperature and pressure cold media gas flows through the first check valve 5 successively to flow after condenser 7 is condensed into high temperature high pressure liquid
Enter 12 evaporation endothermic of the first evaporator after the first four-way reversing valve 8, third check valve 9, first throttle valve module 11 at low
Enter the second four-way reversing valve 13 after warm low pressure refrigerant gas, finally flows into gas-liquid separator 2.Or the second compression of starting first
The blower of machine 3 and the second evaporator 14, opens second throttle component 10, and the second compressor 3 exports high temperature and pressure cold media gas
It flows through after second one-way valve 4 after condenser 7 is condensed into high temperature high pressure liquid followed by the first four-way reversing valve 8, third
After check valve 9, second throttle component 10 enter 14 evaporation endothermic of the second evaporator at after low-temp low-pressure cold media gas successively into
Enter the second four-way reversing valve 13 and the first four-way reversing valve 8, finally flows into gas-liquid separator 2.So after operation a period of time, open
Move another inactive compressor and blower, either on or off another throttle valve component, the first compressor 1 and the second pressure at this time
The exhaust of 3 high temperature and pressure of contracting machine enter after the first check valve 5 and second one-way valve 4 are collaborated respectively 7 exothermic condensation of condenser at
High temperature and pressure refrigerant liquid is divided into two-way after then flowing through the first four-way reversing valve 8, third check valve 9, and wherein the first via is passed through
First throttle valve module 11 enters 12 evaporation endothermic of the first evaporator at low-temp low-pressure cold media gas, subsequently into second after throttling
Four-way reversing valve 13；It is low at low temperature that second tunnel enters 14 evaporation endothermic of the first evaporator after the throttling of second throttle component 10
Cold media gas is pressed, subsequently into the second four-way reversing valve 13, is finally changed after the first four-way reversing valve 8 with the second four-way of outflow
Enter gas-liquid separator 2 after to the mixing of the first via low-temp low-pressure cold media gas of valve 13.
12 Defrost operation mode of the first air-cooled condenser of b
Heat pump is in normal heating mode a at this time, and refrigerant is introduced into 12 evaporation endothermic of the first evaporator, when the first steaming
When hair 12 surface frost layer of device reaches certain thickness, the first four-way reversing valve 8 commutates, first interface 8-1 and second interface 8-2 phase
Even, third interface 8-3 is connected with the 4th interface 8-4；Second four-way reversing valve 13 also commutates, and first interface 13-1 connects with second
Mouth 13-2 is connected, and third interface 13-3 is connected with the 4th interface 13-4.Simultaneously close off a compressor carry out energy adjustment, first
11 standard-sized sheet of throttle valve component opens hot gas bypass valve 6, and the refrigerant high temperature and pressure exhaust into condenser 7 is divided into two-way, passes through all the way
It crosses condenser 7 and is condensed into high temperature and pressure refrigerant liquid, another way flows through the bypass of hot gas bypass valve 6, after the mixing of two-way refrigerant successively
Enter 12 heat release of the first evaporator thawing surface frost layer, two-phase refrigerant after flowing through the first four-way reversing valve 8, four-way reversing valve 13
It is condensed into high pressure supercooling refrigerant liquid.Refrigerant liquid is subcooled after the first throttle valve module 11 of standard-sized sheet, into the second throttling
10 reducing pressure by regulating flow of valve module, finally entering 14 evaporation endothermic of the second evaporator becomes low-temperature low-pressure refrigerant gas, low-temp low-pressure
Cold media gas enters gas-liquid separator 2 after flowing through the second four-way reversing valve 13.
14 Defrost operation mode of the second air-cooled condenser of c
Heat pump is in 12 Defrost operation mode b of normal heating mode a or the first air-cooled condenser at this time, when the second evaporator
When 14 surface frost layers reach certain thickness, the first interface 8-1 of the first four-way reversing valve 8 is connected with second interface 8-2, third
Interface 8-3 is connected with the 4th interface 8-4；The first interface 13-1 of second four-way reversing valve 13 is connected with the 4th interface 13-4, the
Three interface 13-3 are connected with second interface 13-2.It simultaneously closes off a compressor and carries out energy adjustment, second throttle component 10
Standard-sized sheet opens hot gas bypass valve 6, and the refrigerant high temperature and pressure exhaust into condenser 7 is divided into two-way, cold by condenser 7 all the way
It coagulates for high temperature and pressure refrigerant liquid, another way flows through the bypass of hot gas bypass valve 6, followed by the first four-way after the mixing of two-way refrigerant
Enter 14 heat release of the second evaporator after reversal valve 8, four-way reversing valve 13 and melt surface frost layer, two-phase refrigerant is condensed into high pressure supercooling
Refrigerant liquid.Refrigerant liquid is subcooled after the second throttle component 10 of standard-sized sheet, throttles and drops into first throttle valve module 11
Pressure, finally entering 12 evaporation endothermic of the first evaporator becomes low-temperature low-pressure refrigerant gas, and low-temp low-pressure cold media gas flows through the
Enter gas-liquid separator 2 after two four-way reversing valves 13.
D high temperature heating mode
When environment temperature is higher, because system evaporating pressure increases, unit heating capacity is significantly increased, and will lead to condenser 7
Heat exchange area is inadequate, even more so that 3 alarm for high voltage of the first compressor 1 and the second compressor, needs to switch at this time high temperature heating
Mode.First evaporator 12 can be used as condenser, the first interface 8-1 of the first four-way reversing valve is connect with second
Mouth 8-2 is connected, and third interface 8-3 is connected with the 4th interface 8-4；The first interface 13-1 of second four-way reversing valve 13 connects with second
Mouth 13-2 is connected, and third interface 13-3 is connected with the 4th interface 13-4.11 standard-sized sheet of first throttle valve module, into condenser 7
The exhaust of refrigerant high temperature and pressure enters the first steaming after flowing through the first four-way reversing valve 8, four-way reversing valve 13 after the condensation of condenser 7
Hair device 12 continues to be condensed into high temperature and pressure supercooling refrigerant liquid.The first throttle valve module 11 that refrigerant liquid passes through standard-sized sheet is subcooled
Afterwards, into 10 reducing pressure by regulating flow of second throttle component, finally entering 14 evaporation endothermic of the second evaporator becomes low-temp low-pressure refrigeration
Agent gas, low-temp low-pressure cold media gas enter gas-liquid separator 2 after flowing through the second four-way reversing valve 13.Or by the second evaporator
14 use as condenser, and the first interface 8-1 of the first four-way reversing valve 8 is connected with second interface 8-2, third interface 8-3
It is connected with the 4th interface 8-4；The first interface 13-1 of second four-way reversing valve 13 is connected with the 4th interface 13-4, third interface
13-3 is connected with second interface 13-2.10 standard-sized sheet of second throttle component, the refrigerant high temperature and pressure into condenser 7 are vented lease making
It crosses after condenser 7 condenses and continues to condense into the second evaporator 14 followed by after the first four-way reversing valve 8, four-way reversing valve 13
Refrigerant liquid is subcooled for high temperature and pressure.Refrigerant liquid is subcooled after the second throttle component 10 of standard-sized sheet, into first throttle
11 reducing pressure by regulating flow of valve module, finally entering 12 evaporation endothermic of the first evaporator becomes low-temperature low-pressure refrigerant gas, low-temp low-pressure
Cold media gas enters gas-liquid separator 2 after flowing through the second four-way reversing valve 13.When evaporator evaporating pressure mistake air-cooled in unit
When low, close a wherein compressor and carry out energy adjustment.
Continuous heating air friction drag of the invention, using two compressors in parallel, two groups of wind in parallel
Cold type evaporator and throttle valve component, two four-way reversing valves for heat and defrosting mode switches, and to every group of compressor,
Throttle valve component and evaporator fan chain control, to realize that two groups of evaporators run simultaneously frosting in order.It is removed in unit
When white, two evaporators carry out alternately defrosting by the function switch of two four-way reversing valves and two groups of throttle valve components, wherein locating
It is equivalent to subcooler in the evaporator function of defrosting state, and the evaporator for being not in defrosting state then continues to serve as the angle of script
Color, and a wherein compressor out of service carries out energy adjustment, realizes the continuous heating of unit；When unit is compared with epipodium
It, can be real by adjusting wherein start-up and shut-down control of the evaporator as subcooler parallel connection conjunction compressor at a temperature of border when heating operation
The energy adjustment of existing unit heating capacity.Compared with prior art, the present invention it is provided with the advantage that refrigerant during defrosting does not commutate,
Reliability is higher；Heating continues during defrosting simultaneously, improves comfort；And considerably reduce heat pump machine
The energy consumption of group defrosting process, substantially increases defrosting efficiency；And unit is improved in annual heating operation to high environment temperature
Adaptability.
Claims (6)
1. a kind of continuous heating air friction drag, including water-cooled condenser (7), it is characterized by:
Including the first compressor (1), the second compressor (3), air-cooled first evaporator (12), air-cooled second evaporator
(14), first throttle valve module (11) and second throttle component (10) further include third check valve (9), the commutation of the first four-way
Valve (8) and the second four-way reversing valve (13),
First compressor (1) exhaust outlet is communicated through the first check valve (5) with condenser (7) entrance, the second compressor (3) row
Port is communicated through second one-way valve (4) with condenser (7) entrance,
The first interface (8-1) of first four-way reversing valve (8) and the second interface (13-2) of the second four-way reversing valve (13)
It is connected, the second interface (8-2) of the first four-way reversing valve (8) is connected with condenser (7) outlet, the first four-way reversing valve (8)
Third interface (8-3) is connected with third check valve (9) import,
The outlet of third check valve (9) is communicated by first throttle valve module (11) with the first evaporator (12) entrance, third list
It is communicated to the outlet of valve (9) by second throttle component (10) with the second evaporator (14) entrance,
The first interface (13-1) of second four-way reversing valve (13) is connected with the first evaporator (12) outlet, and the second four-way changes
It is connected to the third interface (13-3) of valve (13) with the second evaporator (14) outlet,
4th interface (8-4) of the first four-way reversing valve (8) is in parallel with the 4th interface (13-4) of the second four-way reversing valve (13)
It is communicated afterwards with the air entry of the first compressor (1), the second compressor (3)；
It further include hot gas bypass valve (6), one end is connected with condenser (7) entrance, and the other end is connected with condenser (7) outlet.
2. air friction drag according to claim 1, it is characterised in that:
It further include gas-liquid separator (2), outlet is communicated with the air entry of the first compressor (1), the second compressor (3) respectively,
4th interface (13-4) of the 4th interface (8-4) and the second four-way reversing valve (13) of its entrance and the first four-way reversing valve (8)
It communicates.
3. air friction drag according to claim 2, it is characterised in that:
It further include compensator (15), open end is communicated with the outlet of third check valve (9).
4. air friction drag according to claim 1, it is characterised in that:
The blower of the blower and the second evaporator (14) of first evaporator (12) is respectively configured, and individually controls.
5. air friction drag according to claim 4, it is characterised in that:
The first throttle valve module (11), the first compressor (1) and the first evaporator (12) blower chain control, described
The blower chain control of two throttle valve components (10), the second compressor (3) and the second evaporator (14).
6. air friction drag according to claim 1, it is characterised in that:
It further include oil equalizing pipe (16), one end is connected with the first compressor (1) bottom, the other end and the second compressor (3) bottom
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710390318.9A CN107120831B (en) | 2017-05-27 | 2017-05-27 | A kind of continuous heating air friction drag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710390318.9A CN107120831B (en) | 2017-05-27 | 2017-05-27 | A kind of continuous heating air friction drag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107120831A CN107120831A (en) | 2017-09-01 |
| CN107120831B true CN107120831B (en) | 2019-07-16 |
Family
ID=59729357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710390318.9A Active CN107120831B (en) | 2017-05-27 | 2017-05-27 | A kind of continuous heating air friction drag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120831B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388665B (en) * | 2017-08-22 | 2021-02-23 | 广东美的暖通设备有限公司 | Heat pump assembly, defrost control method, and storage medium |
| CN108826738B (en) * | 2018-08-01 | 2023-11-10 | 安徽欧瑞达电器科技有限公司 | High-temperature type water heater unit |
| US10935290B2 (en) * | 2019-02-27 | 2021-03-02 | Rheem Manufacturing Company | Pressure spike prevention in heat pump systems |
| CN110926046B (en) * | 2019-11-29 | 2023-08-29 | 广东金舵制冷设备有限公司 | Refrigerating device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201964611U (en) * | 2010-12-17 | 2011-09-07 | 宁波天海制冷设备有限公司 | Commercial ultra-low temperature heat pump water heater unit |
| CN203454506U (en) * | 2013-07-29 | 2014-02-26 | 合肥美的电冰箱有限公司 | Defrosting system in air-cooled type double-compressor refrigerating system |
| JP2014109405A (en) * | 2012-11-30 | 2014-06-12 | Daikin Ind Ltd | Water heating system |
| CN204202231U (en) * | 2014-09-12 | 2015-03-11 | 江苏辛普森新能源有限公司 | A kind of double evaporators air source heat pump |
| CN104833087A (en) * | 2015-04-30 | 2015-08-12 | 南京理工大学 | Cascading middle and high-temperature air source heat pump hot water machine set |
| CN105066255A (en) * | 2015-09-01 | 2015-11-18 | 珠海格力电器股份有限公司 | Air conditioning system with continuous heat supply function in defrosting process |
| CN105485907A (en) * | 2015-12-25 | 2016-04-13 | 浙江工业大学 | High-efficiency single-stage restriction two-stage compression heat-pump water heater with large temperature rise |
| CN106196779A (en) * | 2016-07-27 | 2016-12-07 | 南京理工大学 | A kind of solution defrosting freezing regeneration air source source pump |
| CN106196720A (en) * | 2015-01-28 | 2016-12-07 | Lg电子株式会社 | Heat pump hot water supply apparatus and control method thereof |
| CN205843162U (en) * | 2016-06-21 | 2016-12-28 | 广东芬尼克兹节能设备有限公司 | A kind of cascade high-temperature heat pump of high defrosting performance |
-
2017
- 2017-05-27 CN CN201710390318.9A patent/CN107120831B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201964611U (en) * | 2010-12-17 | 2011-09-07 | 宁波天海制冷设备有限公司 | Commercial ultra-low temperature heat pump water heater unit |
| JP2014109405A (en) * | 2012-11-30 | 2014-06-12 | Daikin Ind Ltd | Water heating system |
| CN203454506U (en) * | 2013-07-29 | 2014-02-26 | 合肥美的电冰箱有限公司 | Defrosting system in air-cooled type double-compressor refrigerating system |
| CN204202231U (en) * | 2014-09-12 | 2015-03-11 | 江苏辛普森新能源有限公司 | A kind of double evaporators air source heat pump |
| CN106196720A (en) * | 2015-01-28 | 2016-12-07 | Lg电子株式会社 | Heat pump hot water supply apparatus and control method thereof |
| CN104833087A (en) * | 2015-04-30 | 2015-08-12 | 南京理工大学 | Cascading middle and high-temperature air source heat pump hot water machine set |
| CN105066255A (en) * | 2015-09-01 | 2015-11-18 | 珠海格力电器股份有限公司 | Air conditioning system with continuous heat supply function in defrosting process |
| CN105485907A (en) * | 2015-12-25 | 2016-04-13 | 浙江工业大学 | High-efficiency single-stage restriction two-stage compression heat-pump water heater with large temperature rise |
| CN205843162U (en) * | 2016-06-21 | 2016-12-28 | 广东芬尼克兹节能设备有限公司 | A kind of cascade high-temperature heat pump of high defrosting performance |
| CN106196779A (en) * | 2016-07-27 | 2016-12-07 | 南京理工大学 | A kind of solution defrosting freezing regeneration air source source pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107120831A (en) | 2017-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106907877B (en) | A kind of double evaporators alternately defrosting net for air-source heat pump units and its Defrost method | |
| CN104833087B (en) | Superposition type high temperature air friction drag | |
| CN104061705B (en) | Two-stage Compression air-conditioning system and its control method | |
| CN211739592U (en) | Air conditioning system capable of continuously heating | |
| CN100592007C (en) | Air source heat pump type air conditioner and its defrosting method | |
| EP2381178B1 (en) | Heat pump type heating apparatus | |
| CN107120831B (en) | A kind of continuous heating air friction drag | |
| CN201547994U (en) | Air conditioner | |
| CN101726132A (en) | Air conditioner | |
| CN104833152B (en) | A kind of liquid impact prevention air conditioner defrosting system | |
| CN107763774A (en) | Air conditioner cooling cycle system and air conditioner | |
| CN111765567A (en) | Air conditioning system and control method thereof | |
| CN201314725Y (en) | Heat pump type room air conditioner | |
| CN207019330U (en) | A kind of air-conditioning system | |
| CN111306832B (en) | Air conditioner | |
| CN108007016A (en) | The control method of heat pump system and heat pump system | |
| CN109520170A (en) | A kind of net for air-source heat pump units with twin-stage supercooling and liquid pulse defrosting function | |
| CN209147487U (en) | A kind of low circumstance temperature frequency conversion Air Resource Heat Pump Unit | |
| CN209042832U (en) | A kind of air energy heat pump defrosting system using recuperation of heat | |
| CN111238079A (en) | Heat pump system with ejector | |
| CN106288048B (en) | Dehumidifier and its control method | |
| CN108759157B (en) | One-time throttling two-stage compression heat pump system | |
| CN108759156B (en) | Secondary throttling middle incomplete cooling two-stage compression heat pump system | |
| CN208254005U (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN206247522U (en) | A kind of trilogy supply air source heat pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |