CN106016825A - Solar and air source heat pump dual heat source tri-generation system - Google Patents
Solar and air source heat pump dual heat source tri-generation system Download PDFInfo
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- CN106016825A CN106016825A CN201610435866.4A CN201610435866A CN106016825A CN 106016825 A CN106016825 A CN 106016825A CN 201610435866 A CN201610435866 A CN 201610435866A CN 106016825 A CN106016825 A CN 106016825A
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- condensing tube
- storage tank
- condensing
- solar
- heat pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 229940084430 Four-Way Drugs 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 7
- 239000006200 vaporizer Substances 0.000 description 6
- 208000008425 Protein Deficiency Diseases 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 101700054498 such-1 Proteins 0.000 description 1
- 230000000576 supplementary Effects 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control 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
- 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
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/05—Cost reduction
Abstract
The invention relates to a solar and air source heat pump dual heat source tri-generation system. The system comprises a compressor, a liquid receiver, a four-way solenoid valve, an outdoor unit, a water storage tank, an indoor unit, a circulating pump and a solar thermal collector, wherein the compressor, the liquid receiver and the four-way solenoid valve are sequentially connected via a master condensing agent circulating pipe and form a circulation loop; the outdoor unit, the water storage tank and the indoor unit are respectively connected via a condenser pipe; the water storage tank, the circulating pump and the solar thermal collector are sequentially connected via a water pipe and form a water circulation system. The system has the beneficial effects that as solar energy and a heat pump system are combined, the system efficiency is improved, hot water, heat supply and refrigeration requirements can be realized; the solar energy is fully utilized, the operation power charge is saved, the system is economical and practical; in addition of all weather operations, sufficient hot water or heat can be provided on continuous cloudy days and in winter; meanwhile the refrigeration requirement in summer is realized according to the characteristics of the air source heat pump.
Description
Technical field:
The present invention relates to a kind of solar energy, the double thermal source combined supply system of air source heat pump, belong to sun energy, air source heat pump application technology
Field.
Background technology:
Solar energy is increasingly subject to the attention of people with the feature such as pollution-free inexhaustible, cheap, safe and clean, but due to the sun
Can have by being affected the shortcomings such as long-pending compared with side to light big, that heat flow density is low, needs are bigger in season and weather.Cause solar energy direct
Heat utilization system is all somewhat limited in application.
All deficiencies of solar energy bring opportunity to the development of another kind of energy-saving type heat exchanger-air source hot pump water heater.In year
The south that all temperature is higher, owing to he is little affected by the impact of time and rain or shine weather, installation requirement is low, has again and compares electric heater
Exceed hundreds of heating efficiency, so by the extensive welcome in market.But air source heat pump has a defect the biggest: just
It it is the heat radiation that can not effectively utilize the sun.
Summary of the invention:
It is an object of the present invention to provide and a kind of can improve solar thermal collector efficiency and the solar energy of heat pump system performance, air source simultaneously
The double thermal source combined supply system of heat pump.
The technical solution adopted for the present invention to solve the technical problems is:
The double thermal source combined supply system of a kind of solar energy, air source heat pump, including compressor, liquid trap, four way solenoid valve, outdoor
Machine, storage tank, indoor set, circulating pump, solar thermal collector, compressor, liquid trap, four way solenoid valve pass through total condensing agent
Circulation pipe is sequentially connected with, and constitutes a closed circuit, and off-premises station, storage tank, indoor set are connected by condensing tube respectively.
Storage tank, circulating pump, solar thermal collector are sequentially connected with by water pipe, and constitute a water circulation system.
Described condensing tube include the first condensing tube, the second condensing tube, the 3rd condensing tube, the 4th condensing tube, the 5th condensing tube,
Six condensing tubes, one end of the first condensing tube is connected with four way solenoid valve, and the other end is connected with indoor set, the second condensing tube
One end is connected with four way solenoid valve, and the other end is connected with off-premises station；One end of 3rd condensing tube is connected with the first condensing tube,
The other end and the second condensing tube are connected；One end of 4th condensing tube is connected with the 3rd condensing tube, and the other end is cold with storage tank
Solidifying agent import is connected；One end of 5th condensing tube is connected with the refrigerant outlet of storage tank, the other end and the 6th condensing tube phase
Connection；One end of 6th condensing tube is connected with off-premises station, and the other end is connected with indoor set.At the first condensing tube, second cold
It is respectively equipped with on solidifying pipe, the 3rd condensing tube, the 4th condensing tube, the 5th condensing tube and the 6th condensing tube and controls the control that condensing agent flows to
Valve processed.
The invention has the beneficial effects as follows: solar energy is combined with heat pump, improve system effectiveness, can realize hot water, heating,
Refrigeration demand.Make full use of solar energy, save operation power charge, economical and practical.Except can be in addition to all weather operations, it is also possible to
Cloudy day and winter provide enough hot water or heat continuously.Realize cooling in summer demand according to the feature of air source heat pump simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention.
In figure: 1 compressor, 2 liquid traps, 3 four way solenoid valves, 4 off-premises stations, 5 storage tanks, 6 indoor sets, 7 circulating pumps,
8 solar thermal collectors, 9 total condensing agent circulation pipes, 10 first condensing tubes, 11 second condensing tubes, 12 the 3rd condensing tubes, 13
Four condensing tubes, 14 the 5th condensing tubes, 15 the 6th condensing tubes, 16 water pipes.
Detailed description of the invention:
As it is shown in figure 1, the double thermal source combined supply system of a kind of solar energy, air source heat pump, including compressor (1), liquid trap (2),
Four way solenoid valve (3), off-premises station (4), storage tank (5), indoor set (6), circulating pump (7), solar thermal collector (8),
Compressor (1), liquid trap (2), four way solenoid valve (3) are sequentially connected with by total condensing agent circulation pipe (9), and constitute one
Individual closed circuit, off-premises station (4), storage tank (5), indoor set (6) are connected by condensing tube respectively.Storage tank (5),
Circulating pump (7), solar thermal collector (8) are sequentially connected with by water pipe (16), and constitute a water circulation system.
Described condensing tube include the first condensing tube (10), the second condensing tube (11), the 3rd condensing tube (12), the 4th condensing tube (13),
5th condensing tube (14), the 6th condensing tube (15), one end of the first condensing tube (10) is connected with four way solenoid valve (3),
The other end is connected with indoor set (6), and one end of the second condensing tube (11) is connected with four way solenoid valve (3), the other end
It is connected with off-premises station (4)；One end of 3rd condensing tube (12) is connected with the first condensing tube (10), the other end and second
Condensing tube (11) is connected；One end of 4th condensing tube (13) is connected with the 3rd condensing tube (12), the other end and water storage
The refrigerant inlet of case (5) is connected；One end of 5th condensing tube (14) is connected with the refrigerant outlet of storage tank (5),
The other end and the 6th condensing tube (15) are connected；One end of 6th condensing tube (15) is connected with off-premises station (4), the other end
It is connected with indoor set (6).At the first condensing tube (10), the second condensing tube (11), the 3rd condensing tube (12), the 4th cold
It is respectively equipped with on solidifying pipe (13), the 5th condensing tube (14) and the 6th condensing tube (15) and controls the control valve that condensing agent flows to.
The double thermal source combined supply system mode of operation of solar-powered-air source heat-pump:
1, hot-water mode: during solar energy abundance, solar thermal collector (8) directly heats the water in storage tank (5), then supplies
User uses.During solar energy deficiency, the water at low temperature in storage tank (5) is carried out supplementary energy heating by double heat source heat pump unit, adds
High-temperature-hot-water after heat is sent into indoor for user.When not having the sun, air source heat pump is directly to the water in storage tank (5)
Heating, after in storage tank (5), water temperature meets requirement, source pump water outlet is for user.
2, summer air-conditioning refrigeration, has two kinds of operational modes:
When solar radiation is relatively sufficient, and the hot water utilizing solar thermal collector (8) to produce enters and stores in storage tank (5) for user
Use.Indoor set (6) makees vaporizer cooling air, supplies cold；Off-premises station (4) makees condenser.
When solar radiation is not enough, the cloudy day such as continuously, when solar thermal collector (8) can not produce the hot water of q.s sufficient temp,
Indoor set (6) makees vaporizer cool room air, supplies cold；Water-cooled condenser made by storage tank (5), produces domestic hot-water.
Winter heating's operating mode.Conversion four-way change-over valve, changes the refrigerant flow direction in pipeline so that cold-producing medium is from off-premises station (4) portion
Divide heat absorption, and to indoor set (6) heat supply.
There are three kinds of operational modes:
1), when solar energy is more sufficient, the hot water of solar thermal collector (8) generation uniform temperature is used as the heat exchange of vaporizer side.Water tank
As outdoor water-cooled vaporizer, indoor set (6) heat supply.
2), during solar radiation deficiency, air source heat pump is started.Off-premises station (4) makees vaporizer, indoor set (6) heat supply.
3) when needing to produce a small amount of domestic hot-water, storage tank (5) is accessed in the pipe-line system of condensing tube.Air-cooled off-premises station
(4) making vaporizer, water tank produces domestic hot-water as condenser.
Experimental effect analysis
Solar energy is combined with heat pump nearest 2 years and grows up, and it is than " solar energy is connected with various boilers " and " solar energy
Electricity auxiliary heating " the advanced major step of two ways, the year comprehensive coefficient of performance of heat pump substantially can reach 3.5, as auxiliary
Thermal source, compared with above-mentioned two, it is considerable for saving number.China's most area annual grace time at sunshine be 150～
About 200 days, solar energy met the hot water demand of building, was not required to consume any energy.Within 80～100 days, needs heat-pump part is auxiliary
Help heating.Winter and overcast and rainy about 100 days are worked by heat pump completely.Such 1 ton of hot water annual cost is only on 1000～1200 yuan of left sides
Right.
Claims (3)
1. solar energy, the double thermal source combined supply system of air source heat pump, is characterized in that: include compressor, liquid trap, four-way
Electromagnetic valve, off-premises station, storage tank, indoor set, circulating pump, solar thermal collector, compressor, liquid trap, four way solenoid valve
Being sequentially connected with by total condensing agent circulation pipe, and constitute a closed circuit, off-premises station, storage tank, indoor set are respectively by cold
Solidifying pipe is connected；Storage tank, circulating pump, solar thermal collector are sequentially connected with by water pipe, and constitute a water circulation system.
The double thermal source combined supply system of solar energy the most according to claim 1, air source heat pump, is characterized in that: described condensation
Pipe includes the first condensing tube, the second condensing tube, the 3rd condensing tube, the 4th condensing tube, the 5th condensing tube, the 6th condensing tube, the
One end of one condensing tube is connected with four way solenoid valve, and the other end is connected with indoor set；One end of second condensing tube and four energisings
Magnet valve is connected, and the other end is connected with off-premises station；One end of 3rd condensing tube is connected with the first condensing tube, the other end and
Two condensing tubes are connected；One end of 4th condensing tube is connected with the 3rd condensing tube, the refrigerant inlet phase of the other end and storage tank
Connect；One end of 5th condensing tube is connected with the refrigerant outlet of storage tank, and the other end and the 6th condensing tube are connected；6th
One end of condensing tube is connected with off-premises station, and the other end is connected with indoor set.
The double thermal source combined supply system of solar energy the most according to claim 2, air source heat pump, is characterized in that: described first
It is respectively equipped with control on condensing tube, the second condensing tube, the 3rd condensing tube, the 4th condensing tube, the 5th condensing tube and the 6th condensing tube
The control valve that condensing agent flows to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435866.4A CN106016825A (en) | 2016-06-14 | 2016-06-14 | Solar and air source heat pump dual heat source tri-generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435866.4A CN106016825A (en) | 2016-06-14 | 2016-06-14 | Solar and air source heat pump dual heat source tri-generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106016825A true CN106016825A (en) | 2016-10-12 |
Family
ID=57089059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610435866.4A Pending CN106016825A (en) | 2016-06-14 | 2016-06-14 | Solar and air source heat pump dual heat source tri-generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106016825A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207298A (en) * | 2019-06-18 | 2019-09-06 | 珠海格力电器股份有限公司 | Water-heating machine system and its control method |
| CN110686422A (en) * | 2019-09-24 | 2020-01-14 | 珠海格力电器股份有限公司 | PVT (polyvinyl chloride) coupled night radiation double-source combined heat pump system, control method and intelligent household appliance |
| CN110793234A (en) * | 2019-09-30 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat pump system with double media PVT coupled for night radiation, control method and intelligent household appliance |
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| CN110793234A (en) * | 2019-09-30 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat pump system with double media PVT coupled for night radiation, control method and intelligent household appliance |
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