CN104344601A - Heat recycle apparatus used for multifunctional heat pump and multifunctional air conditioner - Google Patents
Heat recycle apparatus used for multifunctional heat pump and multifunctional air conditioner Download PDFInfo
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- CN104344601A CN104344601A CN201410105506.9A CN201410105506A CN104344601A CN 104344601 A CN104344601 A CN 104344601A CN 201410105506 A CN201410105506 A CN 201410105506A CN 104344601 A CN104344601 A CN 104344601A
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- valve
- cross valve
- magnetic valve
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- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
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- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02732—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two three-way valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a heat recovery system for a multi-functional heat pump and a multi-functional air conditioner, which performs a variety of operation modes such as a cooling mode, a cooling and water heating mode, a heating mode, a heating and water heating, and a water heating mode and a defrost function applied in a cold weather. A simple arrangement of the refrigerant circuit to form the operation is provided.
Description
Technical field
The present invention relates in general to a kind of multifunctional heat pump and a kind of multi-function air conditioner, and this multifunctional heat pump and multi-function air conditioner can operate with the multiple modes of operation comprising defrost function.
Background technology
Essential difference between air-conditioner and heat pump is, heat pump can provide both cooling and heating, and air-conditioner can provide cooling but not provide heating.Simple shop can convert air-conditioner to heat pump, or vice versa.
Multifunctional heat pump and multi-function air conditioner are configured to have the parts of such as compressor, heat exchanger and the such as valve of magnetic valve, check-valves, cross valve and expansion valve usually.Parts are connected with each other via the pipe forming refrigerant loop.Refrigerant loop can adopt parts and the route of varying number.
Under low ambient temperature or cold climate, outdoor heat converter may stand frost.Frost can be formed on the surface of heat exchanger.The formation of frost may make the hydraulic performance decline of heat pump or air-conditioner.
It is known for retrieving from the heat of the condenser of air-conditioner or heat pump to provide hot water.Routinely, multiple modes of operation is attached in single refrigerant circuit systems by air conditioner and multifunctional heat pump.
At CN101231053(A), CN101504211(A), CN101504212(A) and CN201043824(Y) in disclose some Multifunctional heat pump systems.These disclosures teach and use multiple magnetic valve to perform multiple modes of operation.To the cost manufacturing multifunctional heat pump unit be increased to the use of magnetic valve.
CN201028886(Y) and CN101231053(A) disclose a kind of Multifunctional heat pump system, wherein, heat recovery heat exchanger is discharged at compressor place, and in-between without any valve.Therefore the system of the type by only can the condenser heat of recovery section, and, compared with system of the present invention, needs the time more grown to provide hot water.
CN101231053(A) instruction reduces the fan speed of outdoor condenser.Although do not consume hot water cooling requirement duration, but the hot water in heat recovery heat exchanger will impel system effectiveness to decline, even suggestion increases the fan speed of additional condenser, and this is the additional load that hot water owing to being produced from heat recovery heat exchanger becomes system.This problem can make heat recovery heat exchanger bypass to be solved by what such as adopt in the present invention.
Above-mentioned open frost problem of not instructing the outdoor heat converter that can perform defrost function to overcome under cold climate or cryogenic conditions.During these are open, disclosed refrigerant loop does not allow heating with the water of water heating mode and/or performing defrost function between the period of heating.Obviously, said system is not suitable for the country with low ambient temperature or cold climate, in these countries, is of equal importance and is necessary to the requirement of hot water and defrost function.
By combining to obtain simple refrigerant loop and can be suitable for the refrigerant loop that arrange of mode of the defrost function operation of cold climate application, the present invention is at water heating mode and/or heating and provide defrost function during water heating mode.
Summary of the invention
According to the present invention, the heat reclamation device of multifunctional heat pump is with multiple modes of operation work, and described multiple pattern is as follows:
A) cool
B) heat
C) water heating
D) cooling and water heating (whole recuperation of heat)
E) cooling and water heating (part recuperation of heat)
F) heating and water heating
G) defrost function
The refrigerant loop of this multifunctional heat pump is configured to not use magnetic valve, to provide simple and the solution of economy for the manufacture of multifunctional heat pump.In addition, when without magnetic valve, low-noise operation can be realized.
Refrigerant loop comprises outdoor heat converter, and this outdoor heat converter is used as evaporimeter at water heating mode and heating and during water heating mode, to remove any frost formed on the surface of heat exchanger.Switch cross valve to flow towards outdoor heat converter to allow cold-producing medium, to perform defrost function.
Heat exchanger with water tank is arranged to be connected in series air-cooled condenser, to reclaim used heat, for heating water.Heat exchanger serves as additional condenser.This structure and conventional air-conditioning device (that is, without heat recovery system) are compared and are allowed to cool and water heating mode has higher energy efficiency.In cooling and during water heating mode, provide the duration of hot water by disconnecting and the outdoor heat converter outdoor fan that be assembled together and accelerating, water can be passed to allow more heat.
When hot water is needed, multifunctional heat pump will be operated in a water heating mode, and wherein, during this pattern, system does not provide cooling, and defrost function will be performed at outdoor heat converter place.This is performed by the cross valve of two in switched system.Heating mode and heating and water heating mode both provides heating indoor.
According to the present invention, the heat reclamation device of multi-function air conditioner is with multiple modes of operation work, and described multiple pattern is as follows:
A) cool
B) cooling and water heating
C) water heating
D) defrost function
Heat exchanger with water tank is arranged to be connected to air-cooled condenser in parallel, to reclaim used heat, for heating water.When the environment temperature height of aerial condenser, the heat exchanger with water tank serves as alternative condenser, to realize preferably energy efficiency.This structure allows cooling and water heating mode.Cooling and during water heating mode, because whole condenser heat is just recovered, so provide the duration of hot water to be accelerated.This performs by disconnecting the outdoor fan be assembled together with outdoor heat converter, is passed to water to allow more heat.
When hot water is needed, multi-function air conditioner will operate with water heating mode, and wherein, during this pattern, system does not provide cooling, and defrost function will be performed at outdoor heat converter place.This is performed by the cross valve in switched system.
Accompanying drawing explanation
Only exemplarily the present invention is further described with reference to accompanying drawing, wherein:
Fig. 1 illustrates the schematic diagram of the refrigerant loop according to multifunctional heat pump of the present invention.
Fig. 2 illustrates the flow of refrigerant direction in the refrigerant loop as shown in Figure 1 of only cooling period.(indoor heat converter serves as evaporimeter, and outdoor heat converter serves as condenser)
Fig. 3 illustrates to cool and the flow of refrigerant direction of heat recovery mode operation, when this means the water be discharged into by heat recovery heat exchanger in heat in water tank, indoor heat converter serves as evaporimeter, and for space cooling, and outdoor heat converter serves as condenser.
Fig. 4 illustrates the flow of refrigerant direction operated in the heating, this means that indoor heat converter is used as condenser, and for space heating, and outdoor heat converter is used as evaporimeter.
Fig. 5 illustrates in heating and water heating mode or only in order to the flow of refrigerant direction in the water heating mode of the water in heating water tank, period, during requiring heating efficiency to the interior space, outdoor heat converter performs as evaporimeter, and indoor heat converter performs as condenser.When not needing space heating, heat is discharged completely by water tank.
Fig. 6 illustrates the schematic diagram of the refrigerant loop according to multi-function air conditioner of the present invention.
Fig. 7 illustrates the flow of refrigerant direction in the refrigerant loop shown in the Fig. 6 during only refrigerating mode.(indoor heat converter serves as evaporimeter, and outdoor heat converter serves as condenser)
Fig. 8 illustrates in cooling and flow of refrigerant direction in the refrigerant loop shown in Fig. 6 between water period of heating.(indoor heat converter serves as evaporimeter, and serves as the condenser of Thermal release to the water in water tank with the heat exchanger of water tank.）
Fig. 9 illustrates the flow of refrigerant direction (outdoor heat converter serves as evaporimeter) in the refrigerant loop shown in the Fig. 6 during water heating mode
Figure 10 illustrates the flow of refrigerant direction in the refrigerant loop shown in the Fig. 6 during defrost function.(cold-producing medium flows on the contrary direction of water heating mode).
Detailed description of the invention
Fig. 1 is the schematic diagram of the refrigerant loop according to multifunctional heat pump of the present invention.This loop comprises:
A) Interior Space cool-heat-exchanger (13),
B) outdoor oil-to-air heat exchanger (5),
C) with the oil-to-water heat exchanger (20) of water tank (9),
D) compressor (1),
E) expansion valve (18),
F) the first cross valve (3) and the second cross valve (4),
G) the first check-valves (16) and the second check-valves (17)
Wherein, these parts are interconnected to form refrigerant loop.
According to the present invention, refrigerant loop as shown in Figure 1 can operate to perform multiple modes of operation, and described multiple modes of operation is:
A) cool
B) heat
C) water heating
D) cooling and water heating (whole recuperation of heat)
E) cooling and water heating (part recuperation of heat)
F) heating and water heating
G) defrost function
Cold and the compressor making it circulate (1) is connected to accumulator (2) through the suction side of this compressor (1) for the preparation in compressed refrigerant loop.The discharge pipe of this compressor (1) is connected to " D " port of the first cross valve (3)." C " port of first cross valve (3) is connected to " D " port of the second cross valve (4)." C " port of second cross valve (4) is connected to outdoor oil-to-air heat exchanger (5).
The Air flow that outdoor heat converter (5) is blowed by outdoor fan (6).The upstream end of outdoor air sensor (7) air stream disposed in the outdoor, for measuring outdoor environment temperature.The sensor setting that can be called as outdoor heat converter sensor (8) at outdoor heat converter (5) place, to determine the frost conditions on outdoor heat converter (5).Based on outdoor heat converter sensor (8), system will determine whether to need to perform defrost function.
" E " port of first cross valve (3) is connected to heat recovery heat exchanger (20).This heat exchanger (20) is by water cooling.Heat exchanger (20) includes but not limited to the heat exchanger with water tank.It can be flat plate heat exchanger, pipe in pipe or any oil-to-water heat exchanger.
Cold water inlet tube (10) and hot water outlet pipe (11) are connected to water tank (9), and wherein, described pipe is connected to the water supply loop of building.Tank sensor (12) is arranged in water tank (9), to measure water temperature and the environment temperature of heat recovery heat exchanger (20).Based on this measurement, controller by the operation of certainty annuity with realize expect preset temperature.
Indoor heat converter (13) is provided with indoor fan (14) and the room air sensor (15) for measuring indoor temperature.Preferably, room air sensor (15) is mounted to adjacent with the return air of indoor.
At least the first check-valves (16) and the second check-valves (17) are arranged on the refrigerant loop of system.The entrance point of the first check-valves (16) is connected to " C " port of the first cross valve (3).The outlet port of the first check-valves (16) is connected with the outlet port of the second check-valves (17).The inlet ports of the second check-valves (17) is connected to heat recovery heat exchanger (20).
Tube connector from outdoor heat converter (5) is connected to electronic expansion device (18).The balance ports of this electric expansion valve (18) is connected to liquid-receivable section (19).This liquid-receivable section (19) is then connected to indoor heat converter (13).Tube connector from indoor heat converter (13) is connected to " S " port of the second cross valve (4), gets back to accumulator (2) to allow flow of refrigerant.
Refrigerating mode
Fig. 2 illustrates the flow of refrigerant direction during only refrigerating mode of this multifunctional heat pump.During only refrigerating mode, the warm refrigerant of pressurization will flow to the first cross valve (3) from compressor (1) and to the second cross valve (4), then outdoor heat converter (5) is flow to, at outdoor heat converter place, heat from cold-producing medium will be discharged (reject), wherein, the first cross valve (3) and both power-off of the second cross valve (4), flow to port " C " to allow cold-producing medium from port " D ".
Then the liquid refrigerant of condensation will flow to electronic expansion device (18), thus cause cold cold-producing medium.Cold cold-producing medium will flow over liquid-receivable section (19) and flow to indoor heat converter (13), for cooling space or room.Accumulator (2) and compressor (1) are got back in flowing by cold-producing medium.This circulation continues to provide cooling.
Cool and water heating mode (part and whole recuperation of heat)
Fig. 3 describe this multifunctional heat pump to cooling and the relevant flow of refrigerant direction of water heating mode.Cooling and during water heating mode, (namely first cross valve (3) is energized, power supply) to allow cold-producing medium to flow to the heat recovery heat exchanger (20) with water tank (9) from compressor (1), at this heat recovery heat exchanger (20) place, fractional distilling tube heat is discharged to water.Water tank (9) is provided with for hot water is derived the outlet (11) of (channel out) and the inlet tube (10) for recharging water tank (9) with water from water tank (9).Cold-producing medium will flow to the second cross valve (4) through the second check-valves (17).Second cross valve (4) power-off (that is, not powering), flow to outdoor heat converter (5) to allow cold-producing medium from heat recovery heat exchanger (20).Waste heat in cold-producing medium is discharged at outdoor heat converter (5) place.Then the liquid refrigerant of condensation will flow over expansion valve (18) and expand into the cold cold-producing medium of low pressure.This cold cold-producing medium will flow over liquid-receivable section (19), then will flow to indoor heat converter (13), for cooling space according to the preset temperature expected.Use both heat recovery heat exchanger (20) and outdoor heat converter (5) as condenser, with maximum system efficiency using this cooling of part heat recovery mode.
If need the hot water with higher temperature, then the control system of this multifunctional heat pump is by disconnection chamber's external fan (6), thus can not be discharged at outdoor heat converter (5) place from the heat of cold-producing medium.Therefore, more heat is discharged to water by heat recovery heat exchanger (20).This circulation is performed for cooling and whole heat recovery mode.
Heating mode
Fig. 4 illustrates the flow of refrigerant direction during only heating mode of this multifunctional heat pump.During only heating mode, the warm refrigerant of pressurization will flow to the first cross valve (3) and the second cross valve (4) from compressor (1), then flow to indoor heat converter (13) to provide heating to space.Make the first cross valve (3) power-off, to allow cold-producing medium to flow to port " C " from port " D ", and the second cross valve (4) is energized, flow to port " E " to allow cold-producing medium from port " D ".Cold cold-producing medium will flow to electronic expansion device (18) via liquid-receivable section (19), and at this electronic expansion device (18) place, the liquid refrigerant of condensation will expand.Then cold-producing medium will flow to outdoor heat converter (5) with from absorbing heat around.Then, accumulator (2) and compressor (1) are got back in flowing by cold-producing medium.Circulation continues to provide heating.
Water heating mode
During cold ambient temperature or cold conditions, cooling may not be needed.If need hot water, then water heating mode can by Dynamic System.Fig. 5 illustrates the flow of refrigerant direction between water period of heating of this multifunctional heat pump, and wherein, outdoor heat converter (5) serves as evaporimeter.In this operator scheme, make the first cross valve (3) and the second cross valve (4) energising.Cold-producing medium will flow to heat recovery heat exchanger (20), to expel the heat to water from compressor (1).Cold-producing medium will flow to the second cross valve (4) by check-valves (17), then flow to indoor heat converter (13).Indoor fan (14) during this pattern by out of service.The liquid refrigerant of condensation will flow to expansion valve (18) via liquid-receivable section (19).Then cold cold-producing medium will flow to outdoor heat converter (5) and serve as evaporimeter.If the water temperature in water tank is lower than design temperature, then the tank sensor (12) being arranged on water tank (9) place will provide feedback to controller, operate to allow compressor (1).
Heat and water heating mode
If need hot water and space heating, then system will to heat and the operation of water heating mode.During this pattern, indoor fan (14) will operate, to go out the hot type from indoor heat converter (13) for space heating.
Defrost function
Some countries may stand low ambient temperature.Frost may be formed on the surface of outdoor heat converter (5), and water heating mode or heating and water heating mode run at low ambient temperatures.When outdoor heat converter sensor (8) measures the temperature lower than specified temp, signal will be sent to controller, perform defrost function to allow system.
During defrost function; Cold-producing medium flows along the direction identical with in only refrigerating mode, wherein, the warm refrigerant of pressurization will flow to the first cross valve (3) from compressor (1) and flow to the second cross valve (4), then outdoor heat converter (5) is flow to, at outdoor heat converter (5) place, the heat from cold-producing medium will be discharged, wherein, make the first cross valve (3) and both power-off of the second cross valve (4), flow to port " C " to allow cold-producing medium from port " D ".
Fig. 6 is the schematic diagram of the refrigerant loop according to multi-function air conditioner of the present invention.This loop comprises:
A) Interior Space cool-heat-exchanger (105),
B) outdoor oil-to-air heat exchanger (107),
C) with the oil-to-water heat exchanger (104) of water tank (122),
D) compressor (101),
E) expansion valve (109),
F) cross valve (103),
G) first, second, third and fourth magnetic valve (110,111,112,113)
H) temperature sensor (114,115,116,117)
According to the present invention, refrigerant loop as shown in Figure 6 can operate to perform multiple modes of operation, and described multiple modes of operation is:
A) cool
B) cooling and water heating
C) water heating
D) defrost function
Cold and the compressor making it circulate (101) is connected to accumulator (102) at the suction side place of this compressor (101) for the preparation in compressed refrigerant loop.The discharge pipe of this compressor (1) is connected to " D " port of cross valve (103)." C " port of first cross valve (103) is connected to outdoor oil-to-air heat exchanger (107).
The Air flow that outdoor heat converter (107) is blowed by outdoor fan (108).The upstream end of outdoor air sensor (114) air stream disposed in the outdoor, for measuring outdoor environment temperature.The sensor setting that can be called as outdoor heat converter sensor (115) at outdoor heat converter (107) place, to determine the frost conditions on outdoor heat converter (107).Based on this outdoor heat converter sensor (115), system will determine whether to need to perform defrost function.
" E " port of first cross valve (103) is connected to heat recovery heat exchanger (104).This heat recovery heat exchanger (104) is by water cooling.Heat exchanger (104) includes but not limited to the heat exchanger with water tank (122).It can be flat plate heat exchanger, pipe in pipe or any oil-to-water heat exchanger.
Cold water inlet tube (120) and hot water outlet pipe (121) are connected to water tank (122), and wherein, these pipes are connected to the water supply loop of building.Tank sensor (116) is arranged in water tank (122), to measure water temperature and the environment temperature of heat recovery heat exchanger (107).Based on the measurement that this sensor performs, controller by determination operation with realize expect preset temperature.
Indoor heat converter (105) is provided with indoor fan (114) and the room air sensor (117) for measuring room temperature.Preferably, room air sensor (117) is mounted to adjacent with the return air of indoor.
At least four magnetic valves (110,111,112,113) are arranged on refrigerant loop.First magnetic valve (110) is connected to outdoor heat converter (107) at side place and is connected to the second magnetic valve (111) at opposite side place.The side of the second magnetic valve (111) is connected to electric expansion valve (109).The balance ports of electric expansion valve (109) is connected to intersection, and expansion valve (109) is connected to the 3rd magnetic valve (112) and the 4th magnetic valve (113) by this intersection.3rd magnetic valve (112) is connected to heat recovery heat exchanger (104).The balance ports of the 4th magnetic valve (113) and the second magnetic valve (111) is connected to indoor heat converter (105).Indoor heat converter (105) is connected to " S " port of cross valve (103) and is connected to accumulator (102).
Refrigerating mode
Fig. 7 illustrates the flow of refrigerant direction during only refrigerating mode of this multi-function air conditioner.During only refrigerating mode, the warm refrigerant of pressurization will flow to cross valve (103) from compressor (101), then outdoor heat converter (107) is flow to, at outdoor heat converter (107) place, heat from cold-producing medium will be discharged, wherein, make cross valve (103) power-off, flow to port " C " to allow cold-producing medium from port " D ".
Then the liquid refrigerant of condensation will flow to the first magnetic valve (110), then electronic expansion device (109) is flow to, wherein, make second and the 3rd magnetic valve (111,112) close, and the 4th magnetic valve is opened, to allow cold flow of refrigerant to indoor heat converter (105) to provide cooling to room.Accumulator (102) and compressor (101) are got back in flowing by cold-producing medium.This circulation continues to provide cooling.
Cool and water heating mode
Fig. 8 illustrate this multi-function air conditioner in cooling and flow of refrigerant direction during water heating mode.Cooling and during water heating mode, cross valve (103) is energized, to allow cold-producing medium to flow to the heat recovery heat exchanger (104) with water tank (122) from compressor (101), at this heat recovery heat exchanger (104) place, condenser heat is discharged and is only absorbed by the water.Water tank (122) is provided with the outlet (121) for being flowed out from water tank (122) by hot water and the inlet tube (120) for recharging water tank (109) with water.Cold-producing medium will flow to electronic expansion device (109) via the 3rd magnetic valve (112), cause low pressure refrigerant thus.First magnetic valve (110) cuts out, to block the flowing of outdoor heat converter (107), and the second magnetic valve (111) is opened, to allow cold flow of refrigerant to indoor heat converter (105), cool for space.Outdoor fan (108) is operated in order to dry to indoor heat converter.
User has heat that choice for use discharged by system and carrys out heating water and be stored in case by hot water or expel the heat to the option of surrounding.Under comparatively cold environment, permission compressor operates by heat exchanger under lower discharge pressure, and therefore makes the input power of the system that is input to decline.
Water heating mode
If need the hot water with higher temperature, then this multi-function air conditioner will operate with water heating mode.Fig. 9 illustrates the flow of refrigerant direction during water heating mode.Cross valve (103) is energized, and to allow cold-producing medium to flow to heat recovery heat exchanger (104) from compressor (101), at heat recovery heat exchanger (104) place, heat will be discharged.Make the 3rd and first magnetic valve (112,110) open, and make second and the 4th magnetic valve (111,113) close.The liquid refrigerant of condensation will flow to electric expansion valve (109) via the 3rd magnetic valve (112).Cold cold-producing medium is directed to outdoor heat converter (107), to perform as evaporimeter.Compared with electrical heating, this performs as water heater has higher efficiency.
Defrost function
Some countries may experience low ambient temperature.Frost can be formed on the surface of outdoor heat converter (107), and water heating mode or heating and water heating mode operate at low ambient temperatures.When outside wire coil sensor measures the temperature lower than specified temp, signal will be sent to controller, perform defrost function to allow system.
Figure 10 illustrates the flow of refrigerant direction during defrost function, and this flow of refrigerant direction is at water heating mode as shown in Figure 9
on rightabout.Make the 3rd and first magnetic valve (112,110) open, and make second and the 4th magnetic valve (111,113) close.Make this cross valve (103) power-off, to make the flow direction as performed during water heating mode reverse.Cold-producing medium from compressor (101) will flow to outdoor heat converter (107), therefore be melted by the frost on outdoor heat converter (107).Then, cold-producing medium flow to heat recovery heat exchanger (104) by the first magnetic valve (110), expansion valve (109) and the 3rd magnetic valve (112).Cold-producing medium flow to cross valve (103) from heat recovery heat exchanger (104), and entry port " E " arrives " S ", and accumulator (102) and compressor (101) are got back in flowing.
When frost is eliminated, outdoor coil temperature will increase, and this will be detected by outdoor heat converter sensor (115), and therefore stop defrost operation.
Claims (17)
1., for a heat reclamation device for multifunctional heat pump, comprising:
Oil-to-water heat exchanger (20);
Interior Space cool-heat-exchanger (13);
Outdoor oil-to-air heat exchanger (5);
Expansion valve (18), described expansion valve (18) has liquid-receivable section (19), and described expansion valve (18) connects described indoor heat converter and described outdoor heat converter;
Compressor (1), described compressor (1) comprises suction side and discharge pipe, for making refrigerant circulation;
First cross valve (3), described first cross valve (3) comprises D port, C port, S port and E port;
Second cross valve (4), described second cross valve (4) comprises D port, C port, S port and E port;
First check-valves (16) and the second check-valves (17),
Wherein, the described suction side of described compressor (1) is connected to accumulator (2), and described discharge pipe is connected to the described D port of described first cross valve (3), and the described C port of described first cross valve (3) is connected to the described D port of described second cross valve (4), and the described C port of described second cross valve (4) is connected to described outdoor heat converter (5);
Wherein, the described E port of described first cross valve (3) is connected to described oil-to-water heat exchanger (20) and absorbs the heat of being discharged by described interchanger to allow water;
Wherein, the described E port that described indoor heat converter (13) is connected to described second cross valve (4) gets back to described accumulator (2) to allow flow of refrigerant;
Wherein, be connected to form refrigerant loop between described parts, described refrigerant loop can operate for refrigerating function, heating function, water heating function and defrost function.
2. heat reclamation device according to claim 1, wherein,
Described first check-valves (16) is arranged in the connecting portion between described first cross valve (3) and described second cross valve (4); And
Described second check-valves (17) is connected to described oil-to-water heat exchanger (20), and described second check-valves (17) is connected to the connecting portion between described first cross valve (3) and described second cross valve (4) in intersection.
3. heat reclamation device according to claim 1, wherein, described refrigerant loop comprises:
Outdoor heat converter sensor (8), described outdoor heat converter sensor (8) is arranged on described outdoor heat converter (5) and sentences the frost conditions determined on described outdoor heat converter (5);
Outdoor air sensor (7), described outdoor air sensor (7) is arranged on the upstream end of the air stream of described outdoor heat converter (5), for measuring outdoor environment temperature;
Room air sensor (15), described room air sensor (15) is arranged on the upstream end of the air stream of described indoor heat converter (13), for measuring room temperature.
4. heat reclamation device according to claim 1, wherein, described oil-to-water heat exchanger comprises water tank, and tank sensor (12) is arranged in described water tank for measuring water temperature.
5. heat reclamation device according to claim 1, wherein, defrost function can operate in the following manner: the power-off making described first cross valve (3) and described second cross valve (4), to allow warm refrigerant to flow to described outdoor heat converter (5) from described compressor, described outdoor heat converter (5) stands frost in cold climates.
6. heat reclamation device according to claim 1, wherein, cooling and water heating function can operate in the following manner: described first cross valve (3) is energized, makes the power-off of described second cross valve (4) and cut off to be arranged on the fan (6) at described outdoor heat converter (5) place, for whole heat recovery function.
7. heat reclamation device according to claim 1, wherein, cooling and water heating can operate in the following manner: described first cross valve (3) is energized, makes described second cross valve (4) hold electricity and connect to be arranged on the fan (6) at described outdoor heat converter (5) place, for part heat recovery function.
8. state heat reclamation device according to claim 1, wherein, heating can operate in the following manner: make (3) power-off of the first cross valve and the second cross valve (4) is energized.
9. heat reclamation device according to claim 1, wherein, heating and water heating function can operate in the following manner: make the first cross valve (3) and the second cross valve (4) energising, and the fan (14) making to be arranged on described indoor heat converter (13) place operates.
10. heat reclamation device according to claim 1, wherein, water heating function can operate in the following manner: make the first cross valve (3) and the second cross valve (4) energising, and cut off the fan (14) being arranged on described indoor heat converter (13) place.
11. 1 kinds, for the heat reclamation device of multi-function air conditioner, comprising:
Interior Space cool-heat-exchanger (105),
Outdoor oil-to-air heat exchanger (107),
With the oil-to-water heat exchanger (104) of water tank,
Compressor (101), described compressor (101) comprises suction side and discharge pipe, for making refrigerant circulation;
Expansion valve (109),
Cross valve (103),
First magnetic valve (110), the second magnetic valve (111), the 3rd magnetic valve (112) and the 4th magnetic valve (113),
Wherein, the described suction side of described compressor (101) is connected to accumulator (102), and described discharge pipe is connected to the D port of described cross valve (103), and the C port of described cross valve (103) is connected to described outdoor heat converter (107);
Wherein, described oil-to-water heat exchanger (104) is connected to E port and described 3rd magnetic valve (112);
Wherein, described outdoor heat converter (107) is connected to described first magnetic valve (110) and described second magnetic valve (111),
Wherein, described second magnetic valve (111) is connected to electric expansion valve (109), described electric expansion valve (109) has balance ports, and described balance ports is connected to intersection, and described expansion valve is connected to described 3rd magnetic valve (112) and the 4th magnetic valve (113) by described intersection;
Wherein, the balance ports of described 4th magnetic valve (113) and described second magnetic valve (111) is connected to described indoor heat converter (105), and described indoor heat converter (105) is connected to " S " port of described cross valve (103) and is connected to described accumulator (102).
Wherein, be connected to form refrigerant loop between described parts, described refrigerant loop can operate for refrigerating function, water heating function and defrost function.
12. heat reclamation devices according to claim 11, wherein,
Outdoor heat converter sensor (115) is arranged on described outdoor heat converter (107) place, to determine the frost conditions on described outdoor heat converter (107).
Outdoor air sensor (114) is arranged on the upstream end of the air stream of described outdoor heat converter (107), for measuring outdoor environment temperature;
Room air sensor (117) is arranged on the upstream end of the air stream of described indoor heat converter (105), for measuring room temperature.
13. heat reclamation devices according to claim 1, wherein, described oil-to-water heat exchanger comprises water tank (122), and tank sensor (116) is arranged in described water tank, for measuring water temperature.
14. heat reclamation devices according to claim 11, wherein, water heating mode can operate in the following manner: described cross valve (103) is energized, and opens described 3rd magnetic valve (112) and described first magnetic valve (110) and close described second magnetic valve (111) and described 4th magnetic valve (113).
15. heat reclamation devices according to claim 11, wherein, defrost function can operate in the following manner during water heating mode: make described cross valve (103) power-off, and opens described 3rd magnetic valve (112) and described first magnetic valve (110) and close described second magnetic valve (111) and described 4th magnetic valve (113).
16. heat reclamation devices according to claim 11, wherein, cooling and water heating can operate in the following manner: described cross valve (103) is energized, opens described 3rd magnetic valve (112) and described second magnetic valve (111) and close described first magnetic valve (110) and described 4th magnetic valve (113).
17. heat reclamation devices according to claim 11, wherein, cooling can operate in the following manner: make described cross valve (103) power-off, opens described first magnetic valve (110) and described 4th magnetic valve (113) and closes described second magnetic valve (111) and described 3rd magnetic valve (112).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2013701366 | 2013-08-02 | ||
| MYPI2013701366 | 2013-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104344601A true CN104344601A (en) | 2015-02-11 |
Family
ID=52500735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410105506.9A Pending CN104344601A (en) | 2013-08-02 | 2014-03-20 | Heat recycle apparatus used for multifunctional heat pump and multifunctional air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104344601A (en) |
| SG (2) | SG10201403794SA (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240919A (en) * | 2015-10-30 | 2016-01-13 | 北京建筑大学 | Energy storage type air source heat pump heating system and operation method thereof |
| CN108885031A (en) * | 2016-04-21 | 2018-11-23 | 三菱电机株式会社 | Heat-elimination recovery type air attemperation apparatus |
| CN115420666A (en) * | 2022-09-29 | 2022-12-02 | 西南石油大学 | Positive freeze thawing soil gas permeability coefficient dynamic continuous testing system |
-
2014
- 2014-03-20 CN CN201410105506.9A patent/CN104344601A/en active Pending
- 2014-07-02 SG SG10201403794SA patent/SG10201403794SA/en unknown
- 2014-07-02 SG SG10201707735YA patent/SG10201707735YA/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240919A (en) * | 2015-10-30 | 2016-01-13 | 北京建筑大学 | Energy storage type air source heat pump heating system and operation method thereof |
| CN108885031A (en) * | 2016-04-21 | 2018-11-23 | 三菱电机株式会社 | Heat-elimination recovery type air attemperation apparatus |
| CN115420666A (en) * | 2022-09-29 | 2022-12-02 | 西南石油大学 | Positive freeze thawing soil gas permeability coefficient dynamic continuous testing system |
Also Published As
| Publication number | Publication date |
|---|---|
| SG10201707735YA (en) | 2017-10-30 |
| SG10201403794SA (en) | 2015-03-30 |
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Application publication date: 20150211 |