CN109373629A - It makes high water temperature and the heat pump system and its working method of constant heating effect can be maintained - Google Patents
It makes high water temperature and the heat pump system and its working method of constant heating effect can be maintained Download PDFInfo
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- CN109373629A CN109373629A CN201811419869.4A CN201811419869A CN109373629A CN 109373629 A CN109373629 A CN 109373629A CN 201811419869 A CN201811419869 A CN 201811419869A CN 109373629 A CN109373629 A CN 109373629A
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B41/31—Expansion valves
-
- 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
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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
-
- 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
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses making high water temperature and the heat pump system of constant heating effect can be maintained, it is related to air source heat pump technical field.The present invention includes low-temperature level heating subsystem and high-temperature level heating subsystem；It includes air-side heat exchanger, the first main electric expansion valve, economizer, auxiliary electric expansion valve, the first temperature sensing package, the second temperature sensing package, the first four-way valve, low-temperature level compressor, the first liquid-steam separator that low-temperature level, which heats subsystem,；It includes water-side heat, the second main electric expansion valve, the second four-way valve, high-temperature level compressor, the second liquid-steam separator that high-temperature level, which heats subsystem,.By providing, two independently operated low-temperature levels heat subsystem to the present invention and high-temperature level heats subsystem, high-grade medium temperature heat is converted by tow taste heat, high-grade medium temperature converting heat is high-grade high temperature heat by high-temperature level, realize two-stage conversion, it is used for end, heat supply temperature amount is big, and heat stability is good, good reliability is suitable for the extremely cold day heating demands such as northeast.
Description
Technical field
The invention belongs to air source heat pump technical fields, more particularly to the high water temperature of system and can maintain constant heating effect
Heat pump system and its working method.
Background technique
Air source heat pump is a kind of energy saver for making heat flow to from low level heat energy air high-order heat source using high potential.
It is a kind of form of heat pump.As its name suggests, heat pump, can be the Lowlevel thermal energy that cannot directly utilize namely as pump
(heat as contained in air, soil, water) is converted to utilizable high level heat, saves part high potential to reach
The purpose of (such as coal, combustion gas, oil, electric energy).
Air source heat pump is mostly level-one heat supply at present, influenced by ambient temperature very big, for thermally labile, the temperature of end water temperature
Degree can not provide higher water temperature all at 55-60 DEG C or so, need to export the high-temperature water ability more than 75 DEG C in cold area
It effectively plays a role, level-one heating air source heat pump cold area in winter, heating capacity is insufficient, and reliability is poor, air
The Energy Efficiency Ratio (EER) of source heat pump understands dramatic decrease, can generate solidifying frost on circulation line, produces to the work of heat pump system
It is raw to influence, therefore, in view of the above problems, providing a kind of high-temperature water that can be 75 DEG C of output water temperature or more and constant heating being maintained to imitate
The heat pump system and its working method of fruit have great importance.
Summary of the invention
The purpose of the present invention is to provide make high water temperature and can maintain heat pump system and its work side of constant heating effect
Method, by providing the two independently operated low temperature for having air-side heat exchanger, low-temperature level compressor, economizer, the first four-way valve
Grade heats subsystem and the high-temperature level with high-temperature level compressor, the second four-way valve, the water-side heat for connecting water pump heats
Subsystem is connected between two-system thermal sub-system by Intermediate Heat Exchanger, converts high-grade medium temperature heat for tow taste heat, high
High-grade medium temperature converting heat is high-grade high temperature heat by warm grade, is realized two-stage conversion, is used for end, sets in circulation line
Be equipped with the temperature sensing package of monitoring temperature, solve main air source heat pump heat supply temperature is insufficient, heat stability is poor, poor reliability,
The problem of cannot independently defrosting in winter.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The high water temperature of of the invention system and the heat pump system that can maintains constant heating effect, including low-temperature level heat subsystem with
High-temperature level heats subsystem；
Low-temperature level heating subsystem includes that air-side heat exchanger, the first main electric expansion valve, economizer, auxiliary electronics are swollen
Swollen valve, the first compensator, the first temperature sensing package, the second temperature sensing package, the first four-way valve, low-temperature level compressor, low pressure sensor, first
Liquid-steam separator；
The high-temperature level heating subsystem includes water-side heat, the second compensator, the second main electric expansion valve, the two or four
Port valve, high-temperature level compressor, the second liquid-steam separator；
Heat exchange connection is carried out by Intermediate Heat Exchanger between the low-temperature level heating subsystem and high-temperature level heating subsystem；
Blower is installed on the air-side heat exchanger, the import and export both ends of the auxiliary electric expansion valve respectively with economy
Device is connected, one end of the air-side heat exchanger by circulation line with economizer, connect the input end of auxiliary electric expansion valve
Between be connected circulation line be connected, the first main electronics is installed on the pipeline between the air-side heat exchanger and economizer
Expansion valve, the other end of the air-side heat exchanger are connected with the first four-way valve；First four-way valve by circulation line with
Intermediate Heat Exchanger is connected, and is equipped with the first temperature sensing package on the circulation line between first four-way valve and Intermediate Heat Exchanger；Institute
It states economizer to be connected by circulation line with Intermediate Heat Exchanger, pacify on the connecting line between the economizer and Intermediate Heat Exchanger
Equipped with the second temperature sensing package, first compensator is connected with the connecting line between the economizer and Intermediate Heat Exchanger；
First row port, the first air entry, spray enthalpy mouth, the first liquid vapour separation are provided on the low-temperature level compressor
One end of device is connected by circulation line with the first air entry, the other end of first liquid-steam separator pass through circulation line and
First four-way valve is connected, and is equipped with a low pressure sensor on the pipeline between first liquid-steam separator and the first four-way valve；
First row port one end on the low-temperature level compressor is connected by circulation line with the first four-way valve, the low-temperature level compression
One end of spray enthalpy mouth on machine is connected by circulation line with economizer；
Water-side heat import and water-side heat outlet and and water-side heat are provided on the water-side heat
Import and water-side heat export the water inlet pipe and outlet pipe being separately connected, and are equipped with third temperature sensing package and water on the water inlet pipe
It pumps, the 4th temperature sensing package is installed on the outlet pipe；Described water-side heat one end passes through circulation line and Intermediate Heat Exchanger phase
Even, second compensator and the second main electric expansion valve are installed on the circulation line between water-side heat and Intermediate Heat Exchanger
On；
It is provided with second exhaust port and the second air entry on the high-temperature level compressor, the one of second vapour liquid separator
End is connected by circulation line with the second air entry, and the other end of second liquid-steam separator passes through circulation line and the two or four
Port valve is connected, and second exhaust port one end on the high-temperature level compressor is connected by circulation line with the second four-way valve, described
Second four-way valve is connected by circulation line with Intermediate Heat Exchanger.
Further, first four-way valve and the second four-way valve are controlled by same switch, same to open with pass.
Further, the low-temperature level compressor use DC frequency-changing press, lifting frequency by with the Intermediate Heat Exchanger phase
Even the first temperature sensing package and the second temperature sensing package temperature value determine, the low-temperature level start/stop of compressor by with the water-side heat
The temperature value of connected third temperature sensing package and the 4th temperature sensing package determines.
Further, the high temperature compressor determines frequency press using exchange, the high temperature compressor start and stop by with the water
The temperature value of the connected third temperature sensing package of side heat exchanger and the 4th temperature sensing package determines.
Further, because failure causes any level compressor in the low-temperature level compressor and high-temperature level compressor to stop fortune
Row, another stage compressor are also out of service.
Further, the low-temperature level heating subsystem and high-temperature level heating subsystem are two independent subsystems, institute
It is different to state the refrigerant used in low-temperature level heating subsystem and high-temperature level heating subsystem.
Further, the low-temperature level compressor, which converts the tow taste heat in circulation line in high-grade, warms
Amount, the high-grade medium temperature converting heat in circulation line is high-grade high temperature heat by the high-temperature level compressor, via described
Outlet pipe is supplied end and is used.
It makes high water temperature and the working method of the heat pump system of constant heating effect, the operation side including heat pump system can be maintained
The winter frost removing method of method, the method for shutting down of heat pump system, heat pump system；
The operation method of the heat pump system includes the following steps:
S01: it water flow detection: is opened by the water flow being installed on water-side heat described in the high-temperature level heating subsystem
Close detection streamflow regime；
S02: judge whether water flow is normal: judging whether water flow is normal by the water flow switch, when there is water flow to flow through,
Water flow switch closure；When reaching water flow stop value, water flow switch is disconnected, then judges water flow for abnormal condition, reports water flow event
Barrier, if it is not, then entering next step；
S03: Phase sequence detection: pass through the phase sequence relay detection system circuit being installed on heat pump system motherboard circuit；
S04: judge whether phase sequence is normal: judging whether phase sequence is normal, then reports if abnormal, by the phase sequence relay
Phase-sequence Fault then enters next step if normal；
S05: electric expansion valve calibration resets: the first main electric expansion valve and auxiliary electricity in the low-temperature level heating subsystem
The second main electric expansion valve calibration in sub- expansion valve and high-temperature level heating subsystem resets, subsequently into next step；
S06: four-way valve obtains electric: first four-way valve and the second four-way valve are synchronous to execute start-up check movement, electricity 2 seconds
Enter next step afterwards；
S07: four-way valve power loss: first four-way valve and the synchronous power loss of the second four-way valve, after completing start-up check movement
Into next step；
S08: water pump starting: the water pump on the water inlet pipe is actuated for supplying water, subsequently into next step；
S09: blower starting: the blower starting cooperation air-side heat exchanger on the air-side heat exchanger absorbs in air
Heat, subsequently into next step；
S10: low-temperature level compressor start: the low-temperature level compressor start by the heat transfer in circulation line to centre
In heat exchanger, subsequently into next step；
S011: high-temperature level compressor start: the high-temperature level compressor start draws low-temperature level system by Intermediate Heat Exchanger
The heat that thermal sub-system provides, transfers heat in water-side heat, realizes two-stage conversion；
The method of shutting down of the heat pump system the following steps are included:
P01: low-temperature level compressor frequency reducing: the low-temperature level compressor frequency reducing, which reduces, transmits heat into Intermediate Heat Exchanger,
Subsequently into next step；
P02: high-temperature level compressor stops: the high-temperature level compressor stops, and stops exchanging heat through Intermediate Heat Exchanger to water side
The heat that transporting low temperature grade heating subsystem provides in device, subsequently into next step；
P03: low-temperature level compressor stops: the low-temperature level compressor stops transmitting heat into Intermediate Heat Exchanger, then
Into next step；
P04: blower stops: it is out of service on the blower and air-side heat exchanger, stop absorbing the heat in air, so
Enter next step afterwards；
P05: four-way valve obtains electric: synchronous execute of first four-way valve and the second four-way valve stops inspection movement, electricity 2 seconds
Enter next step afterwards；
P06: four-way valve power loss: first four-way valve and the synchronous power loss of the second four-way valve are completed after stopping inspection movement
Into next step；
P07: water pump stops: the water pump stopping on the water inlet pipe is supplied water, and the stopping of water pump system is completed；
The winter frost removing method of the heat pump system includes the following steps:
T01: compressor shutdown, water pump are not shut down: the low-temperature level and high-temperature level compressor shutdown, the water pump do not stop
Operating；
T02: four-way valve obtains electric: first four-way valve and the second four-way valve are electricly synchronous, formed heating circulation, then into
Enter next step；
T03: low-temperature level compressor start: the low-temperature level compressor start, by the heat transfer in circulation line in
Between in heat exchanger, subsequently into next step；
T04: high-temperature level compressor start: the high-temperature level compressor start, during the high-temperature level compressor start passes through
Between heat exchanger draw low-temperature level heating subsystem provide heat, transfer heat in water-side heat, subsequently into next
Step；
T05: reach to defrosting temperature: by first temperature sensing package, the second temperature sensing package, third temperature sensing package, the 4th temperature-sensitive
Whether the temperature in packet induction circulation line has reached defrosting temperature, until having reached defrosting temperature, subsequently into next step；
T06: open blower: the blower starting cooperation air-side heat exchanger on the air-side heat exchanger absorbs in air
Heat, subsequently into next step；
T07: four-way valve power loss: first four-way valve and the synchronous power loss of the second four-way valve guarantee the Intermediate Heat Exchanger
Heat it is constant.
The invention has the following advantages:
The present invention is independently operated with air-side heat exchanger, low-temperature level compressor, economizer, the one or four by providing two
The low-temperature level heating subsystem of port valve and with high-temperature level compressor, second four-way valve, the water-side heat for connecting water pump
High-temperature level heats subsystem, is connected between two-system thermal sub-system by Intermediate Heat Exchanger, converts high-grade for tow taste heat
High-grade medium temperature converting heat is high-grade high temperature heat by medium temperature heat, high-temperature level, is realized two-stage conversion, is used for end,
The temperature sensing package of monitoring temperature is provided in circulation line, with air source heat pump heat supply temperature amount is big, heat stability is good, reliable
Property is good, highly-safe, the advantages of capable of independently defrosting in winter.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the high water temperature of system of the invention and the heat pump system structural schematic diagram that can maintain constant heating effect；
Fig. 2 is the step schematic diagram of the operation method of heat pump system of the invention；
Fig. 3 is the step schematic diagram of the method for shutting down of heat pump system of the invention；
Fig. 4 is the step schematic diagram of the winter frost removing method of heat pump system of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Refering to Figure 1, the heat pump system made high water temperature and constant heating effect can be maintained of the invention, including low temperature
Grade heating subsystem and high-temperature level heat subsystem；
It includes air-side heat exchanger, the first main electric expansion valve, economizer, auxiliary electronic expansion that low-temperature level, which heats subsystem,
Valve, the first compensator, the first temperature sensing package, the second temperature sensing package, the first four-way valve, low-temperature level compressor, low pressure sensor, the first liquid
Vapour separator；
It includes water-side heat, the second compensator, the second main electric expansion valve, the second four-way that high-temperature level, which heats subsystem,
Valve, high-temperature level compressor, the second liquid-steam separator；
Heat exchange connection is carried out by Intermediate Heat Exchanger between low-temperature level heating subsystem and high-temperature level heating subsystem；
Blower is installed on air-side heat exchanger, the import and export both ends of the auxiliary electric expansion valve respectively with economizer phase
Connection, one end of air-side heat exchanger by circulation line and economizer, the auxiliary electric expansion valve of connection input end between be connected
Circulation line be connected, the first main electric expansion valve, air are installed on the pipeline between air-side heat exchanger and economizer
The other end of side heat exchanger is connected with the first four-way valve；First four-way valve is connected by circulation line with Intermediate Heat Exchanger, and first
First temperature sensing package is installed on the circulation line between four-way valve and Intermediate Heat Exchanger；Economizer is changed by circulation line and centre
Hot device is connected, and is equipped with the second temperature sensing package on the connecting line between economizer and Intermediate Heat Exchanger, the first compensator with it is described
Connecting line between economizer and Intermediate Heat Exchanger is connected；
First row port, the first air entry, spray enthalpy mouth, one end of the first liquid-steam separator are provided on low-temperature level compressor
It is connected by circulation line with the first air entry, the other end of the first liquid-steam separator passes through circulation line and the first four-way valve phase
Even, a low pressure sensor is installed on the pipeline between the first liquid-steam separator and the first four-way valve；On low-temperature level compressor
First row port one end is connected by circulation line with the first four-way valve, and one end of the spray enthalpy mouth on low-temperature level compressor is by following
Endless tube road is connected with economizer；
Be provided on water-side heat water-side heat import and water-side heat outlet and with water-side heat import
The water inlet pipe and outlet pipe being separately connected are exported with water-side heat, third temperature sensing package and water pump are installed on water inlet pipe, are discharged
4th temperature sensing package is installed on pipe；Water-side heat one end is connected by circulation line with Intermediate Heat Exchanger, the second compensator with
Second main electric expansion valve is installed on the circulation line between water-side heat and Intermediate Heat Exchanger；
Second exhaust port and the second air entry are provided on high-temperature level compressor, one end of the second vapour liquid separator is by following
Endless tube road is connected with the second air entry, and the other end of the second liquid-steam separator is connected by circulation line with the second four-way valve, high
Second exhaust port one end on warm grade compressor is connected by circulation line with the second four-way valve, and the second four-way valve passes through circulation pipe
Road is connected with Intermediate Heat Exchanger.
Wherein, the first four-way valve and the second four-way valve are controlled by same switch, same to open with pass.
Wherein, low-temperature level compressor uses DC frequency-changing press, and lifting frequency is by the first temperature-sensitive for being connected with Intermediate Heat Exchanger
Packet and the temperature value of the second temperature sensing package determine, low-temperature level start/stop of compressor is by the third temperature sensing package that is connected with water-side heat and the
The temperature value of four temperature sensing packages determines.
Wherein, high temperature compressor determines frequency press using exchange, and high temperature compressor start and stop with the water-side heat by being connected
Third temperature sensing package and the 4th temperature sensing package temperature value determine.
Wherein, another because failure causes any level compressor in low-temperature level compressor and high-temperature level compressor out of service
Grade compressor is also out of service.
Wherein, low-temperature level heating subsystem and high-temperature level heating subsystem are two independent subsystems, low-temperature level heating
The refrigerant used in subsystem and high-temperature level heating subsystem is different, and high-temperature level, which heats, uses R134a type refrigerant in subsystem,
Low-temperature level, which heats, uses R410a type refrigerant in subsystem.
Wherein, the tow taste heat in circulation line is converted high-grade medium temperature heat, high-temperature level by low-temperature level compressor
High-grade medium temperature converting heat in circulation line is high-grade high temperature heat by compressor, is made via outlet pipe supply end
With.
As in Figure 2-4, it makes high water temperature and the working method of the heat pump system of constant heating effect, including heat pump can be maintained
The winter frost removing method of the operation method of system, the method for shutting down of heat pump system, heat pump system；
As shown in Fig. 2, the operation method of heat pump system includes the following steps:
S01: it water flow detection: is examined by the water flow switch being installed on water-side heat described in high-temperature level heating subsystem
Survey streamflow regime；
S02: judge whether water flow is normal: judging whether water flow is normal by water flow switch, when there is water flow to flow through, water flow
It closes the switch；When reaching water flow stop value, water flow switch is disconnected, then judges that water flow for abnormal condition, reports water flow failure, if
It is no, then enter next step；
S03: Phase sequence detection: pass through the phase sequence relay detection system circuit being installed on heat pump system motherboard circuit；
S04: judge whether phase sequence is normal: judging whether phase sequence is normal, then reports phase sequence if abnormal, by phase sequence relay
Failure then enters next step if normal；
S05: electric expansion valve calibration resets: the first main electric expansion valve and auxiliary electronics in low-temperature level heating subsystem are swollen
The second main electric expansion valve calibration in swollen valve and high-temperature level heating subsystem resets, subsequently into next step；
S06: four-way valve obtains electric: the first four-way valve and the second four-way valve are synchronous to execute start-up check movement, electricity 2 seconds it is laggard
Enter next step；
S07: four-way valve power loss: the first four-way valve and the synchronous power loss of the second four-way valve enter after completing start-up check movement
Next step；
S08: water pump starting: the water pump on water inlet pipe is actuated for supplying water, subsequently into next step；
S09: blower starting: the blower starting cooperation air-side heat exchanger on air-side heat exchanger absorbs the heat in air
Amount, subsequently into next step；
S10: low-temperature level compressor start: low-temperature level compressor start exchanges heat the heat transfer in circulation line to centre
In device, subsequently into next step；
S011: high-temperature level compressor start: high-temperature level compressor start draws low-temperature level heating by Intermediate Heat Exchanger
The heat that system provides, transfers heat in water-side heat, realizes two-stage conversion；
As shown in figure 3, the method for shutting down of heat pump system the following steps are included:
P01: low-temperature level compressor frequency reducing: low-temperature level compressor frequency reducing, which reduces, transmits heat into Intermediate Heat Exchanger, then
Into next step；
P02: high-temperature level compressor stops: high-temperature level compressor stops, and stops through Intermediate Heat Exchanger into water-side heat
Transporting low temperature grade heats the heat that subsystem provides, subsequently into next step；
P03: low-temperature level compressor stops: low-temperature level compressor stops transmitting heat into Intermediate Heat Exchanger, subsequently into
Next step；
P04: blower stop: it is out of service on blower and air-side heat exchanger, stop absorb air in heat, then into
Enter next step；
P05: four-way valve obtains electric: synchronous execute of the first four-way valve and the second four-way valve stops inspection movement, electricity 2 seconds it is laggard
Enter next step；
P06: four-way valve power loss: the first four-way valve and the synchronous power loss of the second four-way valve are completed to enter after stopping inspection movement
Next step；
P07: water pump stops: the water pump stopping on water inlet pipe is supplied water, and the stopping of water pump system is completed；
As shown in figure 4, the winter frost removing method of heat pump system includes the following steps:
T01: compressor shutdown, water pump are not shut down: low-temperature level and high-temperature level compressor shutdown, water pump do not shut down；
T02: four-way valve obtains electric: the first four-way valve and the second four-way valve are electricly synchronous, heating circulation are formed, subsequently under
One step；
T03: low-temperature level compressor start: low-temperature level compressor start changes the heat transfer in circulation line to centre
In hot device, subsequently into next step；
T04: high-temperature level compressor start: high-temperature level compressor start, high-temperature level compressor start pass through Intermediate Heat Exchanger
The heat that low-temperature level heating subsystem provides is drawn, is transferred heat in water-side heat, subsequently into next step；
T05: reach to defrosting temperature: by the first temperature sensing package, the second temperature sensing package, third temperature sensing package, the 4th temperature sensing package sense
Answer whether the temperature in circulation line has reached defrosting temperature, until having reached defrosting temperature, subsequently into next step；
T06: open blower: the blower starting cooperation air-side heat exchanger on air-side heat exchanger absorbs the heat in air
Amount, subsequently into next step；
T07: four-way valve power loss: the first four-way valve and the synchronous power loss of the second four-way valve guarantee the heat of Intermediate Heat Exchanger not
Become.
The working principle of the invention: the operation of low-temperature level compressor absorbs heat in air by air heat exchanger, by heat
It is transmitted in Intermediate Heat Exchanger, the operation of high-temperature level compressor draws the heat that low-temperature level provides by Intermediate Heat Exchanger, by heat
It is transmitted in water-side heat, realizes two-stage conversion；Since winter environment temperature is low, temperature change is big, absorbs from air
Heat is unstable, causes the output temperature of Intermediate Heat Exchanger unstable, is gone up and down for this phenomenon by the compressor of low-temperature level
Frequently, the capacity for increasing or decreasing compressor makes up air side heat supply wild effect, guarantees the heat of Intermediate Heat Exchanger not
Become, the heat that low-temperature level is output to Intermediate Heat Exchanger is constant, and the heat that high-temperature level is output to water-side heat is just constant, realizes
End heats constant effect.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (8)
1. making high water temperature and the heat pump system of constant heating effect can be maintained, which is characterized in that heat subsystem including low-temperature level
Subsystem is heated with high-temperature level；
The low-temperature level heating subsystem includes air-side heat exchanger, the first main electric expansion valve, economizer, auxiliary electronic expansion
Valve, the first compensator, the first temperature sensing package, the second temperature sensing package, the first four-way valve, low-temperature level compressor, low pressure sensor, the first liquid
Vapour separator；
The high-temperature level heating subsystem includes water-side heat, the second compensator, the second main electric expansion valve, the second four-way
Valve, high-temperature level compressor, the second liquid-steam separator；
Heat exchange connection is carried out by Intermediate Heat Exchanger between the low-temperature level heating subsystem and high-temperature level heating subsystem；
Blower is installed on the air-side heat exchanger, the import and export both ends of the auxiliary electric expansion valve respectively with economizer phase
Connection, one end of the air-side heat exchanger pass through circulation line and economizer, connect between the input end of auxiliary electric expansion valve
Connected circulation line is connected, and the first main electronic expansion is equipped on the pipeline between the air-side heat exchanger and economizer
Valve, the other end of the air-side heat exchanger are connected with the first four-way valve；First four-way valve passes through circulation line and centre
Heat exchanger is connected, and is equipped with the first temperature sensing package on the circulation line between first four-way valve and Intermediate Heat Exchanger；The warp
Ji device is connected by circulation line with Intermediate Heat Exchanger, is equipped on the connecting line between the economizer and Intermediate Heat Exchanger
Second temperature sensing package, first compensator are connected with the connecting line between the economizer and Intermediate Heat Exchanger；
First row port, the first air entry, spray enthalpy mouth are provided on the low-temperature level compressor, first liquid-steam separator
One end is connected by circulation line with the first air entry, and the other end of first liquid-steam separator passes through circulation line and first
Four-way valve is connected, and is equipped with a low pressure sensor on the pipeline between first liquid-steam separator and the first four-way valve；It is described
First row port one end on low-temperature level compressor is connected by circulation line with the first four-way valve, on the low-temperature level compressor
One end of spray enthalpy mouth be connected with economizer by circulation line；
Be provided on the water-side heat water-side heat import and water-side heat outlet and with water-side heat import
The water inlet pipe and outlet pipe being separately connected are exported with water-side heat, third temperature sensing package and water pump are installed on the water inlet pipe,
4th temperature sensing package is installed on the outlet pipe；Described water-side heat one end is connected by circulation line with Intermediate Heat Exchanger,
Second compensator and the second main electric expansion valve are installed on the circulation line between water-side heat and Intermediate Heat Exchanger；
Second exhaust port and the second air entry are provided on the high-temperature level compressor, one end of second vapour liquid separator is logical
It crosses circulation line to be connected with the second air entry, the other end of second liquid-steam separator passes through circulation line and the second four-way valve
It is connected, second exhaust port one end on the high-temperature level compressor is connected by circulation line with the second four-way valve, and described second
Four-way valve is connected by circulation line with Intermediate Heat Exchanger.
2. the heat pump system according to claim 1 made high water temperature and constant heating effect can be maintained, which is characterized in that institute
It states the first four-way valve and the second four-way valve is controlled by same switch, it is same to open with pass.
3. the heat pump system according to claim 1 made high water temperature and constant heating effect can be maintained, which is characterized in that institute
Low-temperature level compressor is stated using DC frequency-changing press, lifting frequency is by the first temperature sensing package and second for being connected with the Intermediate Heat Exchanger
The temperature value of temperature sensing package determines, the low-temperature level start/stop of compressor is by the third temperature sensing package that is connected with the water-side heat and the
The temperature value of four temperature sensing packages determines.
4. the heat pump system according to claim 1 made high water temperature and constant heating effect can be maintained, which is characterized in that institute
It states high temperature compressor and frequency press is determined using exchange, the high temperature compressor start and stop are by the third sense that is connected with the water-side heat
Thermometer bulb and the temperature value of the 4th temperature sensing package determine.
5. the heat pump system according to claim 1 made high water temperature and constant heating effect can be maintained, which is characterized in that because
Failure leads in the low-temperature level compressor and high-temperature level compressor that any level compressor is out of service, and another stage compressor also stops
Only run.
6. the heat pump system according to claim 1 made high water temperature and constant heating effect can be maintained, which is characterized in that institute
State low-temperature level heating subsystem and high-temperature level heating subsystem be two independent subsystems, low-temperature level heating subsystem and
The refrigerant used in high-temperature level heating subsystem is different.
7. the heat pump system according to claim 1 made high water temperature and constant heating effect can be maintained, which is characterized in that institute
It states low-temperature level compressor and converts high-grade medium temperature heat for the tow taste heat in circulation line, the high-temperature level compressor will
High-grade medium temperature converting heat in circulation line is high-grade high temperature heat, is used via outlet pipe supply end.
8. the work side of such as the high water temperature of the described in any item systems of claim 1-7 and the heat pump system that constant heating effect can be maintained
Method, which is characterized in that the winter frost removing side of the method for shutting down of operation method, heat pump system including heat pump system, heat pump system
Method；
The operation method of the heat pump system includes the following steps:
S01: it water flow detection: is examined by the water flow switch being installed on water-side heat described in the high-temperature level heating subsystem
Survey streamflow regime；
S02: judge whether water flow is normal: judging whether water flow is normal by the water flow switch, when there is water flow to flow through, water flow
It closes the switch；When reaching water flow stop value, water flow switch is disconnected, then judges that water flow for abnormal condition, reports water flow failure, if
It is no, then enter next step；
S03: Phase sequence detection: pass through the phase sequence relay detection system circuit being installed on heat pump system motherboard circuit；
S04: judge whether phase sequence is normal: judging whether phase sequence is normal, then reports phase sequence if abnormal, by the phase sequence relay
Failure then enters next step if normal；
S05: electric expansion valve calibration resets: the first main electric expansion valve and auxiliary electronics in the low-temperature level heating subsystem are swollen
The second main electric expansion valve calibration in swollen valve and high-temperature level heating subsystem resets, subsequently into next step；
S06: four-way valve obtains electric: first four-way valve and the second four-way valve are synchronous to execute start-up check movement, electricity 2 seconds it is laggard
Enter next step；
S07: four-way valve power loss: first four-way valve and the synchronous power loss of the second four-way valve enter after completing start-up check movement
Next step；
S08: water pump starting: the water pump on the water inlet pipe is actuated for supplying water, subsequently into next step；
S09: blower starting: the blower starting cooperation air-side heat exchanger on the air-side heat exchanger absorbs the heat in air
Amount, subsequently into next step；
S10: low-temperature level compressor start: the low-temperature level compressor start exchanges heat the heat transfer in circulation line to centre
In device, subsequently into next step；
S011: high-temperature level compressor start: the high-temperature level compressor start draws low-temperature level heating by Intermediate Heat Exchanger
The heat that system provides, transfers heat in water-side heat, realizes two-stage conversion；
The method of shutting down of the heat pump system the following steps are included:
P01: low-temperature level compressor frequency reducing: the low-temperature level compressor frequency reducing, which reduces, transmits heat into Intermediate Heat Exchanger, then
Into next step；
P02: high-temperature level compressor stops: the high-temperature level compressor stops, and stops through Intermediate Heat Exchanger into water-side heat
Transporting low temperature grade heats the heat that subsystem provides, subsequently into next step；
P03: low-temperature level compressor stops: the low-temperature level compressor stops transmitting heat into Intermediate Heat Exchanger, subsequently into
Next step；
P04: blower stop: it is out of service on the blower and air-side heat exchanger, stop absorb air in heat, then into
Enter next step；
P05: four-way valve obtains electric: synchronous execute of first four-way valve and the second four-way valve stops inspection movement, electricity 2 seconds it is laggard
Enter next step；
P06: four-way valve power loss: first four-way valve and the synchronous power loss of the second four-way valve are completed to enter after stopping inspection movement
Next step；
P07: water pump stops: the water pump stopping on the water inlet pipe is supplied water, and the stopping of water pump system is completed；
The winter frost removing method of the heat pump system includes the following steps:
T01: compressor shutdown, water pump are not shut down: the low-temperature level and high-temperature level compressor shutdown, the water pump do not stop transporting
Turn；
T02: four-way valve obtains electric: first four-way valve and the second four-way valve are electricly synchronous, heating circulation are formed, subsequently under
One step；
T03: low-temperature level compressor start: the low-temperature level compressor start changes the heat transfer in circulation line to centre
In hot device, subsequently into next step；
T04: high-temperature level compressor start: the high-temperature level compressor start, the high-temperature level compressor start are changed by centre
Hot device draws the heat that low-temperature level heating subsystem provides, and transfers heat in water-side heat, subsequently into next step；
T05: reach to defrosting temperature: by first temperature sensing package, the second temperature sensing package, third temperature sensing package, the 4th temperature sensing package sense
Answer whether the temperature in circulation line has reached defrosting temperature, until having reached defrosting temperature, subsequently into next step；
T06: open blower: the blower starting cooperation air-side heat exchanger on the air-side heat exchanger absorbs the heat in air
Amount, subsequently into next step；
T07: four-way valve power loss: first four-way valve and the synchronous power loss of the second four-way valve guarantee the heat of the Intermediate Heat Exchanger
It measures constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419869.4A CN109373629A (en) | 2018-11-26 | 2018-11-26 | It makes high water temperature and the heat pump system and its working method of constant heating effect can be maintained |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419869.4A CN109373629A (en) | 2018-11-26 | 2018-11-26 | It makes high water temperature and the heat pump system and its working method of constant heating effect can be maintained |
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| CN109373629A true CN109373629A (en) | 2019-02-22 |
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| CN205137904U (en) * | 2015-11-04 | 2016-04-06 | 广东日出东方空气能有限公司 | Overlapping formula air source water heater |
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| CN209495486U (en) * | 2018-11-26 | 2019-10-15 | 科希曼电器有限公司 | It makes high water temperature and the heat pump system of constant heating effect can be maintained |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011127878A (en) * | 2009-12-21 | 2011-06-30 | Mitsubishi Electric Corp | Hot water heat source machine |
| JP2013253709A (en) * | 2012-06-05 | 2013-12-19 | Panasonic Corp | Refrigeration cycle device and hot water generation device equipped with the same |
| CN104110908A (en) * | 2014-07-03 | 2014-10-22 | 珠海格力电器股份有限公司 | Three-stage compression cascade circulation heat pump system and control method thereof |
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