CN209027138U - Solar energy heat pump system - Google Patents

Abstract

The utility model discloses a kind of solar energy heat pump systems, including solar thermal collector, evaporator, four-way valve, compressor and water tank, the outlet of evaporator passes through the inlet communication of four-way valve and compressor, it further include the coaxial heat exchanger being mounted in solar thermal collector, the outer tube of the coaxial heat exchanger fills the water and passes through a water pump and is connected to water tank circulation, refrigerant working medium is marked in the inner tube of coaxial heat exchanger, anti-icing fluid is marked in solar thermal collector, the temperature probe for monitoring anti-icing fluid temperature is equipped on solar thermal collector, the outlet of compressor passes through the inlet communication of four-way valve and inner tube, the outlet of inner tube passes through the inlet communication of an electric expansion valve and evaporator, electric expansion valve electrically couples with temperature probe and is opened or closed by temperature probe control.The utility model when sunlight is inadequate, it can be achieved that in outer tube water the double-deck heat exchange, substantially increase heating speed and efficiency；When sunny, it is more energy-saving and environmentally friendly.

Description

Solar energy heat pump system

Technical field

The utility model relates to air energy thermal pump technical fields, and in particular to a kind of solar energy heat pump system.

Background technique

Air energy water heater, also referred to as " air source hot pump water heater " are that the low-temperature heat quantity in air is absorbed into come, pass through The gasification of fluorine medium, is then heated up by being pressurized after compressor compresses, then is passed through heat exchanger and converted water supply heating, compressed high temperature Thermal energy heats water temperature with this, as one kind of heat pump techniques, there is the good reputation of " porter of the Nature energy ".

The new product overcomes the disadvantage that solar water heater adopts heat and installation inconvenience by sunlight.Due to air energy thermal water The work of device is by media for heat exchange, therefore it does not need electrical heating elements and directly contacts with water, avoids electric heater electric leakage Danger, also prevent gas heater and be possible to the danger exploded and be poisoned, it is useless more effectively to control gas heater discharge Air pollution caused by gas has the multiple advantage such as low use cost, easy to operate, good heating effect, safety, clean.Therefore, closely The emphasis that air energy thermal pumping system becomes national " coal changes electricity " policy over year promotes product, and occupation rate of market steps up.

However, showing the generally existing following problems of existing heat pump system: refrigerant working medium by long-term using practice Be carried out by condenser and the water in water tank it is cold and hot exchange, and the mounting means of condenser is mainly built-in or external Two kinds, wherein built-in be placed in water tank by coil pipe, is directly contacted with the water heated in water tank；External is Copper pipe or aluminum pipe and parallel-flow heat exchanger are wrapped on water storage tank inner container outer wall, are not contacted with water.External is only and outside liner The heat exchange of wall fitting part, and other surfaces do not exchange heat, heat exchange efficiency is low.In addition regular solar water heater is in rainy days without heat Water is available, and air energy heat pump can not utilize more solar energies in sun-drenched weather, it is still necessary to consume electric energy Problem.

Utility model content

No matter whether the purpose of this utility model is to provide one kind sunlight sufficient, all achievable solar energy sufficiently to exchange heat Heat pump system.

This solar energy heat pump system provided by the utility model, including solar thermal collector, evaporator, four-way valve, pressure Contracting machine and water tank, the outlet of the evaporator pass through the inlet communication of four-way valve and compressor, further include being mounted on solar energy The outer tube of coaxial heat exchanger in heat collector, the coaxial heat exchanger fills the water and passes through a water pump and is connected to water tank circulation, in institute It states and is marked with refrigerant working medium in the inner tube of coaxial heat exchanger, anti-icing fluid is marked in solar thermal collector, in the solar energy collection Hot device is equipped with the temperature probe for monitoring anti-icing fluid temperature, and the outlet of the compressor passes through the import of four-way valve and inner tube Connection, the outlet of said inner tube pass through the inlet communication of an electric expansion valve and evaporator, and the electric expansion valve and thermometric are visited The electrical connection of head is simultaneously opened or closed by temperature probe control.

Bottom for the heat exchange for accelerating water and anti-icing fluid, the solar thermal collector is connected to by circulating pump with its top.

For make heat exchange more evenly, efficiency it is more preferable, the coaxial heat exchanger serpentine-like distribution in solar thermal collector.

For the service life for increasing compressor, the four-way valve passes through the inlet communication of a gas-liquid separator and compressor.

For the service life for increasing compressor, it is equipped between the gas outlet of the gas-liquid separator and the import of compressor Low tension switch.

For the proportion of goods damageds for reducing anti-icing fluid, product is equipped between the import of the liquid outlet and evaporator of the gas-liquid separator Liquid cup.

Outlet for the service life for increasing electric expansion valve, said inner tube is connected by a filter and electric expansion valve It is logical.

To reduce cost, the solar thermal collector uses closing-sunning type heat collector.

Outlet for the service efficiency for increasing compressor, the compressor is connected to by a high-voltage switch gear with four-way valve.

To reduce energy consumption, the water pump connection is between the water inlet of outer tube and the water outlet of the bottom of storage tank.

The utility model is by the built-in coaxial heat exchanger in solar thermal collector, in the outer tube of the coaxial heat exchanger and interior It is injected separately into water and refrigerant working medium in pipe, when sunlight is inadequate, it is anti-that heat is absorbed by solar thermal collector on one side Freeze liquid, obtain the cold media gas of high temperature and pressure by compressor compresses on one side, to realize the double-deck heat exchange of water in outer tube, significantly Improve heating speed and efficiency；When sunny, the anti-icing fluid in the water and solar thermal collector in outer tube need to only be changed Heat heating, and be recycled in water tank and stored by water pump, it is more energy-saving and environmentally friendly.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Label and corresponding component name shown in figure are as follows:

1, solar thermal collector；2, evaporator；3, four-way valve；4, compressor；5, water tank；6, coaxial heat exchanger；7, water Pump；8, refrigerant working medium；9, anti-icing fluid；10, temperature probe；11, electric expansion valve；12, circulating pump；13, gas-liquid separator； 14, low tension switch；15, hydrops cup；16, filter；17, high-voltage switch gear；61, outer tube；62, inner tube.

Specific embodiment

It will be seen from figure 1 that this solar energy heat pump system of the utility model, including solar thermal collector 1, evaporator 2, Four-way valve 3, compressor 4, water tank 5, coaxial heat exchanger 6, water pump 7, refrigerant working medium 8, anti-icing fluid 9, temperature probe 10 and electricity Sub- expansion valve 11, wherein

Solar thermal collector 1 uses closing-sunning type heat collector, and coaxial heat exchanger 6 is mounted in solar thermal collector 1 and in snake Shape distribution, is marked with water, the inlet and outlet of outer tube 61 are located at coaxial heat exchanger in the outer tube 61 of coaxial heat exchanger 6 6 bottom and top, the inlet and outlet of water tank 5 are located at the top and bottom of cabinet, and refrigerant working medium 8 fills In the inner tube 62 of coaxial heat exchanger 6, anti-icing fluid 9 is filled in solar thermal collector 1；

The water outlet of outer tube 61 is connected to the water inlet of water tank 5, and the water outlet of water tank 5 passes through water pump 7 and outer tube 61 Water inlet connection, formed water-flow circuit；

The outlet of evaporator 2 passes through the inlet communication of four-way valve 3 and a gas-liquid separator 13, the outlet of gas-liquid separator 13 For mouth by the inlet communication of a low tension switch 14 and compressor 4, the outlet of compressor 4 passes sequentially through a high-voltage switch gear 17, four-way The inlet communication of the inner tube 62 of valve 3 and coaxial heat exchanger 6, the outlet of the inner tube 62 of coaxial heat exchanger 6 passes sequentially through a filter 16, the inlet communication of electric expansion valve 11 and evaporator 2 forms refrigerant circulation circuit；

The inlet communication that the liquid outlet of gas-liquid separator 13 passes through a hydrops cup 15 and evaporator 2；

Temperature probe 10 is mounted on solar thermal collector 1 equipped with the temperature for monitoring anti-icing fluid 9；Electric expansion valve 11 Electrically couple with temperature probe 10 and the temperature value realization that can be set according to temperature probe 10 opens or closes；

It is seen also in fig. l that the bottom of solar thermal collector 1 passes through circulating pump to accelerate the heat exchange of water and anti-icing fluid 12 are connected to its top, and the anti-icing fluid 9 of 1 bottom of solar thermal collector can be recycled to 1 top of solar thermal collector by circulating pump 12, The anti-icing fluid 9 in solar thermal collector 1 is set to be in flow at high speed state, to quickly make the water in coaxial heat exchanger outer tube 61 Heating.

When setting value is not achieved in the temperature that the temperature probe 10 in solar thermal collector 1 measures, the utility model makes It is as follows with process:

1, the refrigerant working medium 8 of the low-temp low-pressure after the throttling of electric expansion valve 11, steams by evaporator 2 and air heat-exchange Hair is low temperature low pressure gas；

2, after low temperature low pressure gas enters the compression of compressor 4, become the gas of high temperature and pressure；

3, the gas of high temperature and pressure enters in the inner tube 62 of the coaxial heat exchanger 6 in solar thermal collector 1, in inner tube 62 Flowing exchanges heat with the water in outer tube 61；The energy that solar thermal collector 1 absorbs the sun keeps the heating of the anti-icing fluid 9 in it outer to heat Water in pipe 61 substantially increases heat transfer rate and efficiency to make the water Double-side Heating in outer tube 61.

When the temperature that the temperature probe 10 in solar thermal collector 1 measures reaches setting value, the use of the utility model Process is as follows:

1, compressor 4 does not start, and absorbs heat anti-icing fluid 9 by solar thermal collector 1, the water in outer tube 61 with too Anti-icing fluid 9 in positive energy heat collector 1, which exchanges heat, to heat up；

2, the water pump in outer tube 61 is sent in water tank 5 by water pump 7, until the water in water tank 5 reaches set temperature.

Claims (10)

1. a kind of solar energy heat pump system, including solar thermal collector (1), evaporator (2), four-way valve (3), compressor (4) and Water tank (5), the outlet of the evaporator pass through the inlet communication of four-way valve and compressor, it is characterised in that: further include installation The outer tube (61) of coaxial heat exchanger (6) in solar thermal collector, the coaxial heat exchanger fills the water and by a water pump (7) and storage Water tank circulation connection, is marked with refrigerant working medium (8) in the inner tube (62) of the coaxial heat exchanger, infuses in solar thermal collector There are anti-icing fluid (9), the temperature probe (10) for monitoring anti-icing fluid temperature, the compression are equipped on the solar thermal collector The outlet of machine passes through the inlet communication of four-way valve and inner tube, and the outlet of said inner tube passes through an electric expansion valve (11) and evaporator Inlet communication, the electric expansion valve electrically couple with temperature probe and by temperature probe control opens or closes.

2. solar energy heat pump system according to claim 1, it is characterised in that: the bottom of the solar thermal collector passes through Circulating pump (12) is connected to its top.

3. solar energy heat pump system according to claim 1, it is characterised in that: the coaxial heat exchanger is in solar energy heating Serpentine-like distribution in device.

4. solar energy heat pump system according to claim 1, it is characterised in that: the four-way valve passes through a gas-liquid separator (13) with the inlet communication of compressor.

5. solar energy heat pump system according to claim 4, it is characterised in that: the gas-liquid separator gas outlet with Low tension switch (14) are equipped between the import of compressor.

6. solar energy heat pump system according to claim 4, it is characterised in that: the gas-liquid separator liquid outlet with Hydrops cup (15) are equipped between the import of evaporator.

7. solar energy heat pump system according to claim 1, it is characterised in that: the outlet of said inner tube passes through a filter (16) it is connected to electric expansion valve.

8. solar energy heat pump system according to claim 1, it is characterised in that: the solar thermal collector uses closing-sunning type Heat collector.

9. solar energy heat pump system according to claim 1, it is characterised in that: the outlet of the compressor passes through a high pressure Switch (17) is connected to four-way valve.

10. solar energy heat pump system according to claim 1, it is characterised in that: water inlet of the water pump connection in outer tube Between mouth and the water outlet of the bottom of storage tank.