CN106568111A - Carbon dioxide heat pump heating system - Google Patents
Carbon dioxide heat pump heating system Download PDFInfo
- Publication number
- CN106568111A CN106568111A CN201510649905.6A CN201510649905A CN106568111A CN 106568111 A CN106568111 A CN 106568111A CN 201510649905 A CN201510649905 A CN 201510649905A CN 106568111 A CN106568111 A CN 106568111A
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- China
- Prior art keywords
- carbon dioxide
- temperature
- heat
- dioxide heat
- heating system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
Abstract
The invention discloses a carbon dioxide heat pump heating system. The carbon dioxide heat pump heating system comprises a heating device, a water outlet pipeline connected with the heating device, a water inlet pipeline connected with the heating device, a first shunt pipeline connected with the water outlet pipeline, a second shunt pipeline connected with the water outlet pipeline and a carbon dioxide heat pump system, wherein the water outlet end of the second shunt pipeline and the water outlet end of the first shunt pipeline are connected to the water inlet end of the water inlet pipeline, and moreover liquid flowing through at least part of the second shunt pipeline exchanges heat with the carbon dioxide heat pump system.
Description
Technical field
The present invention relates to field of heating and field of Refrigeration and Air-conditioning, the invention particularly relates to a kind of carbon dioxide heat-pump is adopted
Heating system.
Background technology
Due to the destruction to environment,《Montreal Agreement》Field of Refrigeration and Air-conditioning will be made widely used
HCFCs class cold-producing mediums are on the verge of being replaced, and《The Kyoto Protocol》The substitute HFCs classes for making HCFCs again are freezed
Agent becomes transitional product.Natural refrigerant carbon dioxide (CO2) be employed as one kind and be proved right
Environmentally friendly natural refrigerant, caused in recent years the great attention of people.
CO2The critical temperature (31.1 DEG C) of working medium is relatively low, CO close with ambient temperature2System
SAPMAC method high temperature exothermic temperature must could realize heat release higher than this temperature.Therefore CO2Kind of refrigeration cycle is trans critical cycle,
Exothermic process is carried out positioned at supercritical region, and evaporation process is carried out positioned at close-to-critical range.
As shown in figure 1, positioned at the CO of supercritical region2Exothermic process is alternating temperature process, there is larger temperature glide,
The slipping just matches with the temperature-variable heat source needed for hot water is added, and has very high heat transfer when for heat pump cycle
Efficiency.Therefore CO is adopted2During heat pump water, in order to make full use of the heat transfer with variable temperature process of its Trans-critical cycle section,
Water and CO2Countercurrent flow is formed, and the temperature difference of Inlet and outlet water is bigger, and heat exchange amount is also bigger, the efficiency of system
It is higher.
Fig. 2 is the schematic diagram of Teat pump boiler, wherein CO2Heat pump by compressor, air cooler, throttle mechanism and
Vaporizer is constituted, CO2Cold-producing medium becomes the supercritical fluid of High Temperature High Pressure, shooting flow Jing after compressor compression
Body is exchanged heat in air cooler with water, transfers heat to the fluid for becoming cryogenic high pressure after water, then warp knuckle stream machine
After structure throttling, become the gas-liquid two-phase fluid of low-temp low-pressure, two-phase fluid absorbs the heat in environment in vaporizer,
It is evaporated to gaseous CO2, compressor compresses are entered back into afterwards, so realize a circulation.Cold water (such as 20 DEG C)
Into CO2After the air cooler of heat pump, with the CO for flowing through air cooler2Exchanged heat, and directly heated what is needed
Temperature (such as 65 DEG C), is then injected into water tank for users to use.
In view of CO2Excellent environmental protection characteristic, heat-transfer character, also there is in recent years the trend for being applied to field of heating.
Different from Teat pump boiler, the water of heating system is in the circulation of a closing (as shown in Figure 3), Er Qiejin
The temperature difference of water outlet is less.By taking floor heating as an example, inflow temperature at 40 DEG C or so, leaving water temperature at 30 DEG C or so,
That is the temperature difference of Jing heat pumps water is at 10 DEG C or so.
But, if CO2Heat pump is using the conventional arrangement shown in Fig. 3, CO2In the exothermic process of supercritical section
Effectively utilizes will tail off, the efficiency of system is reduced.Accordingly, it would be desirable to be directed to CO2The characteristics of propose it is a kind of new
Heating system, to improve system effectiveness.
The content of the invention
In view of the drawbacks described above of prior art, the technical problem to be solved is to provide one kind can be effective
Improve the carbon dioxide heat-pump heating system of the utilization ratio of carbon dioxide heat-pump.
For achieving the above object, the invention provides a kind of carbon dioxide heat-pump heating system, including：Heating plant,
The outlet conduit being connected with the heating plant and the inlet channel and the outlet pipe of heating plant connection
First shunt conduit of road connection and second shunt conduit and carbon dioxide heat-pump of outlet conduit connection
System；Wherein, the water side of the water side of second shunt conduit and first shunt conduit is connected to institute
State the water intake end of inlet channel；And, flow through the liquid at least a portion pipeline in second shunt conduit
Heat exchange is carried out with the carbon dioxide heat pump system.
In the better embodiment of the present invention, the liquid of at least a portion pipeline in second shunt conduit is flowed through
Body carries out heat exchange with the carbon dioxide heat pump system so that flow through the temperature of the liquid of at least a portion pipeline
Degree rises.
In the better embodiment of the present invention, the carbon dioxide heat-pump heating system also includes being arranged in described the
Valve in two shunt conduits；Wherein, the valve is used to control the fluid flow in second shunt conduit.
In the better embodiment of the present invention, the water side of second shunt conduit, first shunt conduit
Water side and the inlet channel water intake end link position at be disposed with temperature measuring equipment, and described two
Carbonoxide thermodynamic heating system also includes control device, and the control device is measured according to temperature measuring equipment
Difference between the temperature and predetermined temperature of mixed flow carrys out control valve.
In the better embodiment of the present invention, the temperature and pre- constant temperature of the mixed flow measured when temperature measuring equipment
When spending equal, the control device not control valve；The temperature of the mixed flow measured when temperature measuring equipment is less than
When predetermined temperature is equal, the control device control valve causes the fluid flow in second shunt conduit to increase
Greatly；When the temperature of the mixed flow that temperature measuring equipment is measured is equal more than predetermined temperature, the control device is adjusted
Section valve causes the fluid flow in second shunt conduit to reduce.
In the better embodiment of the present invention, the liquid is anti-icing fluid or water.
In the better embodiment of the present invention, the heating plant is floor heating device.
In the better embodiment of the present invention, the carbon dioxide heat pump system includes compressor, air cooler, section
Stream mechanism and vaporizer；Wherein, the compressor is used to compress CO2Cold-producing medium causes CO2Cold-producing medium becomes high
The supercritical fluid of warm high pressure；In the air cooler for causing supercritical fluid and second shunt conduit in
The liquid of at least a portion pipeline is exchanged heat, and to be transferred heat to and become fluid after the liquid；The section
Stream mechanism saves and causes the fluid to become gas-liquid two-phase fluid；The vaporizer is used to that gas-liquid two-phase fluid to be absorbed
Heat in environment is being evaporated to gaseous CO2, and by gaseous CO2The compressor is transferred to as CO2
Cold-producing medium is compressed.
The technique effect of the design, concrete structure and generation of the present invention is described further below with reference to accompanying drawing,
To be fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is shown for CO2Trans critical cycle temperature-entropy curve.
Fig. 2 is the CO according to prior art2Teat pump boiler schematic diagram.
Fig. 3 is the conventional CO according to prior art2Heat pump heating schematic diagram.
Fig. 4 is the general frame of carbon dioxide heat-pump heating system according to the preferred embodiment of the invention.
Fig. 5 is a specific example of carbon dioxide heat-pump heating system according to the preferred embodiment of the invention.
Specific embodiment
Fig. 4 is the general frame of carbon dioxide heat-pump heating system according to the preferred embodiment of the invention.
As shown in figure 4, carbon dioxide heat-pump heating system according to the preferred embodiment of the invention includes：Heating plant
The outlet conduit 10 of 100 (for example, floor heating devices) and the connection of the heating plant 100 and described adopt
The inlet channel 20 of the connection of heater device 100 and the first shunt conduit 11 and the institute of the connection of the outlet conduit 10
State second shunt conduit 12 and carbon dioxide heat pump system 200 of the connection of outlet conduit 10.
Wherein, the water side of the water side of second shunt conduit 12 and first shunt conduit 11 is all connected with
To the water intake end of the inlet channel 20；And, flow through at least a portion pipe in second shunt conduit 12
Liquid (for example, anti-icing fluid or water) in road carries out heat exchange with the carbon dioxide heat pump system 200.
In general, for example, liquid and the institute of at least a portion pipeline in second shunt conduit 12 are flowed through
Stating carbon dioxide heat pump system 200 carries out heat exchange so that flow through the temperature of the liquid of at least a portion pipeline
Rise, subsequently to can be used for the heating of heating plant.
Preferably, carbon dioxide heat-pump heating system according to the preferred embodiment of the invention also includes being arranged in described the
Valve 30 in two shunt conduits 12；Wherein, the valve 30 is used to control in second shunt conduit 12
Fluid flow.
The water side of second shunt conduit 12, the water side of first shunt conduit 11 and the water inlet pipe
Temperature measuring equipment (not shown), and carbon dioxide heat are disposed with the link position of the water intake end in road 20
Pump heating system also includes control device (not shown), and the control device is measured according to temperature measuring equipment
Mixed flow temperature and predetermined temperature between difference carry out control valve.
Specifically, when the temperature of the mixed flow for measuring when temperature measuring equipment is equal with predetermined temperature, the control
Device not control valve；When the temperature of the mixed flow that temperature measuring equipment is measured is equal less than predetermined temperature, institute
Control device control valve is stated so that the fluid flow increase in second shunt conduit 12；When temperature survey dress
Put the temperature of the mixed flow for measuring it is equal more than predetermined temperature when, the control device control valve causes described the
Fluid flow in two shunt conduits 12 reduces.
So, under concrete operations state, from such as water etc of such as 30 DEG C out of heating plant 100
Liquid is divided into two-way；Wherein directly reach entering for the inlet channel 20 without carbon dioxide heat-pump all the way
At water end (W.E.), because without heat pump, therefore water temperature keeps constant, is still 30 DEG C；Another road then enters dioxy
Heated in the air cooler for changing carbon heat pump, be heated to higher temperature the characteristics of using carbon dioxide heat-pump
(such as 65 DEG C), then reach at the water intake end of the inlet channel 20.Two path water is reaching the water inlet pipe
Mix at the water intake end in road 20, form such as 40 DEG C of hot water, re-supply to heating plant 100, satisfaction is adopted
Warm demand.
And, further, flowing through the discharge of carbon dioxide heat-pump can be entered by the valve being arranged on water route
Row is adjusted, to adjust final mixing temperature, to realize the adjustable effect of final temperature.
As can be seen that the present invention advantageously utilizes carbon dioxide heat-pump be adapted to the big temperature difference (such as 30 DEG C → 65 DEG C),
The characteristics of low discharge adds hot water, therefore the efficiency of system can be improved.
In order to be illustrated more clearly that the present invention, dioxy according to the preferred embodiment of the invention is described below with reference to Fig. 5
Change a specific example of carbon thermodynamic heating system.
As shown in figure 5, carbon dioxide heat pump system 200 may include compressor 21, air cooler 22, throttle mechanism
23 and vaporizer 24；Wherein, CO2Cold-producing medium becomes the shooting flow of High Temperature High Pressure Jing after the compression of compressor 21
Body, supercritical fluid in the air cooler 22 with second shunt conduit 12 at least a portion pipeline
Liquid is exchanged heat, and transfers heat to the fluid for becoming cryogenic high pressure after liquid, then warp knuckle stream mechanism section 23 flows
Afterwards, the gas-liquid two-phase fluid of low-temp low-pressure is become, two-phase fluid absorbs the heat in environment in vaporizer 24,
It is evaporated to gaseous CO2, compressor 21 is entered back into afterwards to be compressed, so realize circulation.
Described above illustrates and describes the preferred embodiments of the present invention, as previously mentioned, it should be understood that the present invention is not
Form disclosed herein is confined to, the exclusion to other embodiment is not to be taken as, and can be used for various other groups
Close, modification and environment, and can be in invention contemplated scope described herein, by above-mentioned teaching or association area
Technology or knowledge are modified.And change that those skilled in the art are carried out and change are without departing from the spirit and model of the present invention
Enclose, then all should be in the protection domain of claims of the present invention.
Claims (8)
1. a kind of carbon dioxide heat-pump heating system, it is characterised in that include：Heating plant and the heating plant
The inlet channel and outlet conduit connection of the outlet conduit of connection and heating plant connection
Second shunt conduit and carbon dioxide heat-pump system of the first shunt conduit and outlet conduit connection
System；Wherein, the water side of the water side of second shunt conduit and first shunt conduit is all connected with
To the water intake end of the inlet channel；And, flow through at least a portion pipe in second shunt conduit
Liquid in road carries out heat exchange with the carbon dioxide heat pump system.
2. carbon dioxide heat-pump heating system as claimed in claim 1, it is characterised in that flow through described second point
The liquid of at least a portion pipeline in flow tube road carries out heat exchange with the carbon dioxide heat pump system, makes
The temperature that the liquid of at least a portion pipeline must be flowed through rises.
3. carbon dioxide heat-pump heating system as claimed in claim 1 or 2, it is characterised in that also including being arranged in
Valve in second shunt conduit；Wherein, the valve is used to control in second shunt conduit
Fluid flow.
4. carbon dioxide heat-pump heating system as claimed in claim 3, it is characterised in that second isocon
The connection position of the water intake end of the water side in road, the water side of first shunt conduit and the inlet channel
The place of putting is disposed with temperature measuring equipment, and the carbon dioxide heat-pump heating system also includes control dress
Put, and the temperature of mixed flow that measured according to temperature measuring equipment of the control device and predetermined temperature
Between difference carry out control valve.
5. carbon dioxide heat-pump heating system as claimed in claim 4, it is characterised in that work as temperature measuring equipment
When the temperature of the mixed flow for measuring is equal with predetermined temperature, the control device not control valve；Work as temperature
When the temperature of the mixed flow that degree measurement apparatus are measured is equal less than predetermined temperature, the control device is adjusted
Valve causes the fluid flow in second shunt conduit to increase；When the mixing that temperature measuring equipment is measured
When the temperature of current is equal more than predetermined temperature, the control device control valve causes second shunting
Fluid flow in pipeline reduces.
6. carbon dioxide heat-pump heating system as claimed in claim 1 or 2, it is characterised in that the liquid is
Anti-icing fluid or water.
7. carbon dioxide heat-pump heating system as claimed in claim 1 or 2, it is characterised in that the heating dress
It is floor heating device to put.
8. carbon dioxide heat-pump heating system as claimed in claim 1 or 2, it is characterised in that the titanium dioxide
Carbon heat pump includes compressor, air cooler, throttle mechanism and vaporizer；Wherein, the compressor is used
In compression CO2Cold-producing medium causes CO2Cold-producing medium becomes the supercritical fluid of High Temperature High Pressure；The air cooler
It is interior for causing supercritical fluid and second shunt conduit at least a portion pipeline liquid
Body is exchanged heat, and to be transferred heat to and become fluid after the liquid；The throttle mechanism section causes described
Fluid becomes gas-liquid two-phase fluid；The vaporizer is used to cause gas-liquid two-phase fluid to absorb the heat in environment
Measure to be evaporated to gaseous CO2, and by gaseous CO2The compressor is transferred to as CO2Cold-producing medium
It is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649905.6A CN106568111A (en) | 2015-10-09 | 2015-10-09 | Carbon dioxide heat pump heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649905.6A CN106568111A (en) | 2015-10-09 | 2015-10-09 | Carbon dioxide heat pump heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106568111A true CN106568111A (en) | 2017-04-19 |
Family
ID=58507772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510649905.6A Pending CN106568111A (en) | 2015-10-09 | 2015-10-09 | Carbon dioxide heat pump heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106568111A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028250A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating pipeline, heating system and control method |
| CN111852783A (en) * | 2020-07-13 | 2020-10-30 | 西安交通大学 | Two-phase flow device and method for wind power heating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336916A (en) * | 2002-05-16 | 2003-11-28 | Hitachi Home & Life Solutions Inc | Refrigerating cycle and heat pump water heater |
| CN101313879A (en) * | 2008-07-22 | 2008-12-03 | 天津商业大学 | CO2 high-temperature heat pump saunas system |
| CN102239372A (en) * | 2008-12-02 | 2011-11-09 | 瓦尔梅帕姆朋公司 | Heat pump/air conditioning apparatus with sequential operation |
| CN102918332A (en) * | 2010-06-03 | 2013-02-06 | 日立空调·家用电器株式会社 | Heat pump hot-water supply device |
-
2015
- 2015-10-09 CN CN201510649905.6A patent/CN106568111A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336916A (en) * | 2002-05-16 | 2003-11-28 | Hitachi Home & Life Solutions Inc | Refrigerating cycle and heat pump water heater |
| CN101313879A (en) * | 2008-07-22 | 2008-12-03 | 天津商业大学 | CO2 high-temperature heat pump saunas system |
| CN102239372A (en) * | 2008-12-02 | 2011-11-09 | 瓦尔梅帕姆朋公司 | Heat pump/air conditioning apparatus with sequential operation |
| CN102918332A (en) * | 2010-06-03 | 2013-02-06 | 日立空调·家用电器株式会社 | Heat pump hot-water supply device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028250A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating pipeline, heating system and control method |
| CN109028250B (en) * | 2018-07-13 | 2023-10-31 | 珠海格力电器股份有限公司 | Control method for controlling operation of heating system |
| CN111852783A (en) * | 2020-07-13 | 2020-10-30 | 西安交通大学 | Two-phase flow device and method for wind power heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Applicant after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Applicant before: Rili Electric Appliance Co., Ltd., Shanghai |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170419 |
|
| RJ01 | Rejection of invention patent application after publication |