CN103983013B - Novel frost-free air source hot pump water heater - Google Patents
Novel frost-free air source hot pump water heater Download PDFInfo
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- CN103983013B CN103983013B CN201410239311.3A CN201410239311A CN103983013B CN 103983013 B CN103983013 B CN 103983013B CN 201410239311 A CN201410239311 A CN 201410239311A CN 103983013 B CN103983013 B CN 103983013B
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Abstract
The invention discloses a kind of Novel frost-free air source hot pump water heater, including refrigerant circulation loop, air compressor and air expander.Refrigerant circulation loop includes compressor, condenser, throttling arrangement and the heat exchanger connecting by refrigerant line；Wherein, described heat exchanger includes housing, the coil pipe in this housing, an air inlet and a gas outlet, circulation cold-producing medium in described coil pipe, and the enclosure interior outside described coil pipe forms air and introduces space；Described air inlet is connected with described air compressor, described gas outlet is connected with described air expander, so that air through the output of described air compressor from the described air inlet described air of input introduce in space with described refrigerant heat exchanger, and export to described air expander from described gas outlet after heat release.Present configuration is simple, can effectively prevent frosting.
Description
Technical field
The present invention relates to water heater, particularly to a kind of Novel frost-free air source hot pump water heater.
Background technology
Air source hot pump water heater, is to absorb heat to manufacture hot water " heat carrying " from the air using refrigeration principle
Device.By allowing working medium constantly to complete to evaporate (draw heat in environment) → compression → condensation (releasing heat) → throttling → again
The thermodynamic cycle process of evaporation, thus the heat in environment is transferred in water.This device mainly obtains heat energy from air, has
Solar water heater energy-saving and environmental protection, the advantage of safety, solve solar water heater again and rely on sunlight to adopt heat and install inconvenience
Problem.Additionally, it does not have the danger of electric heater electric leakage yet.
However, the current air source hot pump water heater using has the problem of environmental suitability, north of china in winter ambient temperature
Low, lead to the easy frosting of outdoor evaporator.Leaning on four-way change-over valve to defrost the air source hot pump water heater being widely used at present more
Technology, this traditional method cannot thoroughly remove frost layer and fault rate is high.
For solving the above problems, mostly at present is to be defrosted using the defrosting equipment of water heater and control method, such as direct current
Become the defrosting control method of frequency band water heater air conditioner device, phase change heat accumulator defrosts, parallel mutual defrosting etc..But these methods
Propose technical scheme after being only for water heater frosting, fundamentally do not solve the problems, such as frosting.
In view of this, need to propose a kind of air source hot pump water heater solving the problems, such as frosting source.
Content of the invention
The main object of the present invention has been directed to a kind of Novel frost-free air source hot pump water heater, and structure is simple, can
Effectively prevent frosting.
For reaching above-mentioned purpose, the present invention provides a kind of air source hot pump water heater, including refrigerant circulation loop, air
Compressor and air expander.Compressor that refrigerant circulation loop includes connecting by refrigerant line, condenser, throttling
Device and heat exchanger；Wherein, described heat exchanger includes housing, the coil pipe in this housing, and an air inlet and goes out
QI KOU, circulation cold-producing medium in described coil pipe, the enclosure interior outside described coil pipe forms air and introduces space；Described air inlet and institute
State air compressor to be connected, described gas outlet is connected with described air expander, so that the sky through the output of described air compressor
Gas from the described air inlet described air of input introduce in space with described refrigerant heat exchanger, and defeated from described gas outlet after heat release
Go out to described air expander.
Preferably, the enclosure interior outside described coil pipe contains heat-conducting liquid, described heat-conducting liquid surround described coil pipe and its
A space is left above liquid level；Air through the output of described air compressor introduces space from the described air of described air inlet input
Interior and by described heat-conducting liquid and described refrigerant heat exchanger.
Preferably, described air source hot pump water heater also includes by-passing parts, and it introduces in space located at described air
Connect with described air inlet, or with described air compressor and stretch in described air introducing space for connecting described air inlet
Pipe fitting, described by-passing parts are located at the part that described air introduces in space and have multiple gas ports so that described air compressor
The air of output enters described air and introduces spatial time sharing stream.
Preferably, described heat exchanger is provided with a drain valve.
Preferably, described heat exchanger top is provided with a relief valve.
Preferably, described air compressor is centrifugal air compressor, and described air expander is that centrifugal type air is swollen
Swollen machine.
Preferably, described air compressor and described air expander are to be coaxially disposed.
Preferably, the bottom of the shell located at described heat exchanger for the described air inlet, described gas outlet is handed over located at described heat
The top of the shell of parallel operation.
Preferably, the outer wall of the shell of described heat exchanger is coated with insulation material.
Preferably, a receiver and a device for drying and filtering are set gradually between described condenser and described throttling arrangement.
Air source hot pump water heater proposed by the invention, by into outdoor heat converter input High Temperature High Pressure air with
Cold-producing medium carries out heat exchange, it is to avoid the coil pipe directly contact in outdoor Cryogenic air and heat exchanger, therefore inclined in northern temperature
When low, this device equally even can prevent frosting to coil pipe defrosting effectively.Additionally, present invention eliminates cross valve,
It can be avoided that because cross valve fault causes the thermal efficiency to reduce.
Brief description
Fig. 1 is the structural representation of the air source hot pump water heater of one embodiment of the invention.
Specific embodiment
For making present disclosure more clear understandable, below in conjunction with Figure of description, present disclosure is made into one
Step explanation.Certainly the invention is not limited in this specific embodiment, the general replacement known to those skilled in the art
Cover within the scope of the present invention.
In this manual and in detail in the claims it should be understood that when an element be referred to as ' attach ' to another element or with
During another element " being connected ", it may be coupled directly to another element, or there may be intervening element.
Fig. 1 is the structural representation of the air source hot pump water heater of one embodiment of the invention.As shown in figure 1, air source is hot
Pump water heater includes compressor 1, condenser 2, throttling arrangement 5, outdoor heat converter 6, air compressor 7 and air expander 8.
Wherein, compressor 1, condenser 2, throttling arrangement 5 and heat exchanger 6 are connected by refrigerant line, constitute refrigerant cycle and return
Road.Optionally, also can set gradually the receiver 3 being connected with condenser 2 between condenser 2 and throttling arrangement 5 and fill with throttling
Put 5 devices for drying and filtering 4 being connected, receiver 3 is used for storing cold-producing medium, and device for drying and filtering 4 is used for filtering moisture and impurity.At this
In refrigerant circulation loop, the cold-producing medium of evaporation of absorbing heat in heat exchanger 6 enters compressor 1 in vapour form, becomes after being compressed
High temperature and high pressure gas are become to enter condenser 2.In condenser 2, high-temperature high-pressure refrigerant steam is entered with the cold water inputting from import A
Row heat exchange, the temperature drop of cold-producing medium, it is changed into liquid from high pressure gaseous, discharge substantial amounts of heat, and by cool water heating
Export for users to use to uniform temperature from outlet B.And the liquid refrigerant after heat release through receiver 3, device for drying and filtering 4 to section
Stream device 5, such as expansion valve or choke valve, return to heat exchanger 6 after carrying out reducing pressure by regulating flow and Flow-rate adjustment.
Because the boiling point of cold-producing medium is very low, even if circulate in heat exchanger 6 is Cryogenic air, cold-producing medium still is able to inhale
Thermal evaporation and with gaseous state enter compressor 1.However, the air crossing low temperature in heat exchanger easily causes heat exchanger frosting.
For solving this problem, the present invention as heat exchanger 6 and coordinates air compressor 7 and air expansion using shell and tube exchanger
Machine 8, to form the open system being made up of heat exchanger 6, air compressor 7 and air expander 8.Specifically, heat exchange
Device 6 is shell and tube exchanger, including a housing, the coil pipe in this housing, an air inlet and a gas outlet.Circulate in coil pipe
Cold-producing medium, the enclosure interior outside coil pipe forms an air and introduces space, carries out the air of heat exchange for circulation.Heat exchanger 6
Air inlet is connected with air compressor 7, and gas outlet is connected with air expander 8.Preferably, air inlet is located at heat exchanger 6
The bottom of shell, the top of the shell located at heat exchanger 6 for the gas outlet.So, outdoor air air inlet compressor 7, compression
The air being passed through heat exchanger 6 from air inlet after becoming high temperature and high pressure gas introduces space, thus carrying out heat exchange with cold-producing medium,
The heat of vaporization of this high temperature and high pressure gas of refrigerant suction is gaseous state, and the pressure-air after heat release is flat through air expander 8
Pressure heel row is in outdoor environment.As known from the above, in heat exchanger side, the air entering heat exchanger 6 is high temperature and high pressure gas,
Can not only be with refrigerant heat exchanger it is also possible to preventing air themperature from dropping to below dew point temperature and leading to heat exchanger 6 frosting.
In order to improve further the high temperature and high pressure gas and the coil pipe inner refrigerant that enter heat exchanger heat exchange efficiency and
Increase the coefficient of heat transfer, can be in a certain amount of heat-conducting liquid of storage inside of the coil pipe shell body of heat exchanger 6.Heat-conducting liquid does not fill
Full heat exchanger 6, and preferably surrounding outside coil pipe, with heat exchanger housing body all leave certain sky between the upper and lower ends
Between.The air inlet air inlet from heat exchanger 6 bottom for the air of High Temperature High Pressure introduces space, and gas density is smaller, can be through
Heat-conducting liquid rises, and the process of rising is also the process of heat exchange.Space available buffer air pressure above heat-conducting liquid liquid level becomes
Change, make outlet pressure stability.Thus, enter this air and introduce the high temperature and high pressure gas in space using heat-conducting liquid as medium, lead to
Cross this medium indirectly and cold-producing medium carries out heat exchange.Specifically, this high temperature and high pressure gas carries out heat exchange, heat conduction with heat-conducting liquid first
Liquid absorb heat after again with refrigerant heat exchanger.Heat-conducting liquid can be water or other liquid solutions, has more more preferable than gas
Specific heat and heat conductivity, therefore, it is possible to effectively improving and strengthening heat exchanger effectiveness.The High Temperature High Pressure of heat exchanger 6 interior part simultaneously
Air setting becomes water can also supplement heat-conducting liquid.As illustrated, a drain valve 10 can be provided with heat exchanger 6, in order to heat conduction
The liquid level of liquid is controlled.
Additionally, introducing sky in order to avoid high temperature and high pressure gas enter the internal quick ventilating air of heat exchanger 6 from air inlet
Between discharge from gas outlet, by-passing parts can be provided with heat exchanger 6 so that enter high temperature and high pressure gas therein can be with
The abundant heat exchange of cold-producing medium.This by-passing parts can be provided at air and introduce the manifold members connecting with air inlet in space or pipe
Part or connection air inlet with air compressor 7 and extend into the pipe fitting that air introduces in space, and by-passing parts are located at sky
The part that gas introduces within space can be provided with multiple gas ports, so that high temperature and high pressure gas air inlet introduces spatial time sharing
Stream.
For air compressor 7 and air expander 8, preferably both of which adopts centrifugal machine.Further,
Centrifugal air compressor 7 and centrifugal type air decompressor 8 are to be coaxially disposed, and to reclaim the work(of a part, reduce the consumption of system
Work(amount.
Additionally, heat exchanger 6 top can be provided with a relief valve 9, it is used for preventing internal heat exchanger hypertonia.Heat exchange
Certain thickness insulation material also can be coated, for the temperature of the high temperature and high pressure gas to its inside on the outer wall of the shell of device 6
Insulation.
In sum, air source hot pump water heater proposed by the invention, by inputting high temperature into outdoor heat converter
Pressure-air and cold-producing medium carry out heat exchange, it is to avoid outdoor Cryogenic air and heat exchanger internals directly contact, therefore exist
When northern temperature is low, this device equally even can prevent frosting to heat exchanger defrosting effectively.And, the present invention
Eliminate cross valve, it can be avoided that because cross valve fault causes the thermal efficiency to reduce.Further, by with heat-conducting liquid for being situated between
Matter, makes the High Temperature High Pressure air of input heat exchanger indirectly and refrigerant heat exchanger, more improves heat exchange efficiency.
Although the present invention is disclosed as above with preferred embodiment, so described many embodiments are illustrated only for the purposes of explanation
, it is not limited to the present invention, those skilled in the art can make without departing from the spirit and scope of the present invention
Some changes and retouching, the protection domain that the present invention is advocated should be to be defined described in claims.
Claims (9)
1. a kind of air source hot pump water heater is it is characterised in that include：
Refrigerant circulation loop, compressor that it includes connecting by refrigerant line, condenser, throttling arrangement and be arranged at room
Outer heat exchanger；Wherein cold-producing medium absorbs heat to evaporate in described heat exchanger and enters described compressor in vapour form, is pressed
Enter after contracting and carry out heat exchange with the cold water inputting in described condenser cool water heating to uniform temperature is made for user with exporting
With being changed into liquid after described cold-producing medium heat release and returning to described heat exchanger；
Air compressor；And
Air expander,
Wherein, described heat exchanger includes housing, the coil pipe in this housing, an air inlet and a gas outlet；Described disk
Circulation cold-producing medium in pipe, the enclosure interior outside described coil pipe forms air and introduces space；Described air inlet and described air compression
Machine is connected, and described gas outlet is connected with described air expander；Outdoor air compress through described air compressor after from described enter
The described air of QI KOU input introduces in space with described refrigerant heat exchanger so that described cold-producing medium is evaporated to gaseous state and enters described pressure
Contracting machine, the outdoor air after the compression of described air compressor exports to described air expander from described gas outlet after heat release
To arrange to outdoor environment；
Wherein, the enclosure interior outside described coil pipe contains heat-conducting liquid, and described heat-conducting liquid surrounds in described coil pipe and its liquid level
Fang Liuyou mono- space；Air through the output of described air compressor introduces in space and leads to from the described air of described air inlet input
Cross described heat-conducting liquid and described refrigerant heat exchanger.
2. air source hot pump water heater according to claim 1 is it is characterised in that also include by-passing parts, its located at
Described air is introduced in space and is connected with described air inlet, or with described air compressor and stretches into institute for connecting described air inlet
State the pipe fitting that air introduces in space, the part that described by-passing parts are located in described air introducing space has multiple gas ports
So that the air of described air compressor output enters described air and introduces spatial time sharing stream.
3. air source hot pump water heater according to claim 1 is it is characterised in that described heat exchanger is provided with a draining
Valve.
4. air source hot pump water heater according to claim 1 is it is characterised in that described heat exchanger top is provided with a peace
Full valve.
5. air source hot pump water heater according to claim 1 is it is characterised in that described air compressor is centrifugal sky
Air compressor, described air expander is centrifugal type air decompressor.
6. air source hot pump water heater according to claim 5 is it is characterised in that described air compressor and described air
Decompressor is to be coaxially disposed.
7. air source hot pump water heater according to claim 1 is it is characterised in that described air inlet is located at described heat exchange
The bottom of the shell of device, the top of the shell located at described heat exchanger for the described gas outlet.
8. air source hot pump water heater according to claim 1 is it is characterised in that the outer wall of the shell of described heat exchanger
On be coated with insulation material.
9. air source hot pump water heater according to claim 1 is it is characterised in that described condenser and described throttling arrangement
Between set gradually a receiver and a device for drying and filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239311.3A CN103983013B (en) | 2014-05-30 | 2014-05-30 | Novel frost-free air source hot pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239311.3A CN103983013B (en) | 2014-05-30 | 2014-05-30 | Novel frost-free air source hot pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103983013A CN103983013A (en) | 2014-08-13 |
| CN103983013B true CN103983013B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410239311.3A Expired - Fee Related CN103983013B (en) | 2014-05-30 | 2014-05-30 | Novel frost-free air source hot pump water heater |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928237B (en) * | 2015-04-13 | 2020-10-09 | 李华玉 | Open type bidirectional thermodynamic cycle and first-class heat-driven compression heat pump |
| CN105910333B (en) * | 2015-04-13 | 2020-10-09 | 李华玉 | Open type bidirectional thermodynamic cycle and first-class heat-driven compression heat pump |
| CN105352213A (en) * | 2015-12-14 | 2016-02-24 | 上海理工大学 | Steam and air cascade refrigerating system |
| CN105972821A (en) * | 2016-01-25 | 2016-09-28 | 中山昊天节能科技有限公司 | Air energy water heater with intelligent identification function |
| CN106123179A (en) * | 2016-08-17 | 2016-11-16 | 北京丰联奥睿科技有限公司 | A kind of compressed air refrigeration system |
| CN108266842A (en) * | 2018-01-29 | 2018-07-10 | 青岛志青华新能源有限公司 | A kind of compression air-conditioning system |
| CN112283970A (en) * | 2020-09-23 | 2021-01-29 | 杨吉 | Frostless air source heat pump system |
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| CN200958858Y (en) * | 2006-09-21 | 2007-10-10 | 谢坤 | Hot-pump water heater with waste gas and waste water heat utilizing functions |
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| CN1916368A (en) * | 2006-09-11 | 2007-02-21 | 朱晓彦 | Method and equipment for recycling heat of returned air in mineral well |
| CN101699196B (en) * | 2009-10-28 | 2012-08-08 | 华南理工大学 | Air-cooling heat pump using excess heat of compressor for frost prevention |
| CN101975424A (en) * | 2010-11-15 | 2011-02-16 | 中山市格普斯纳米电热科技有限公司 | Air conditioner outdoor unit suitable for low-temperature environment |
| CN102410665B (en) * | 2011-11-22 | 2013-02-06 | 北京矿大节能科技有限公司 | Waste heat recovery and utilization system for coal mine air compressor |
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|---|---|---|---|---|
| CN200958858Y (en) * | 2006-09-21 | 2007-10-10 | 谢坤 | Hot-pump water heater with waste gas and waste water heat utilizing functions |
| CN101251322A (en) * | 2008-04-10 | 2008-08-27 | 中国科学院广州能源研究所 | Pressure-air defrosting device for air-conditioner heat exchanger |
| CN102797661A (en) * | 2012-08-03 | 2012-11-28 | 齐齐哈尔轨道交通装备有限责任公司 | Air compressor residual-heat utilization system and method |
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| CN103983013A (en) | 2014-08-13 |
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