CN105928201A - Air source high-temperature heat pump - Google Patents
Air source high-temperature heat pump Download PDFInfo
- Publication number
- CN105928201A CN105928201A CN201610368091.3A CN201610368091A CN105928201A CN 105928201 A CN105928201 A CN 105928201A CN 201610368091 A CN201610368091 A CN 201610368091A CN 105928201 A CN105928201 A CN 105928201A
- Authority
- CN
- China
- Prior art keywords
- condenser
- outlet
- expansion valve
- air source
- heat pump
- Prior art date
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
Abstract
The invention discloses an air source high-temperature heat pump and belongs to the field of heat pumps. The air source high-temperature heat pump is characterized in that an outlet of a compressor is provided with a bypass sequentially connecting an ejector, an auxiliary condenser with an auxiliary expansion valve in series, and a cooler is connected between a condenser and an expansion valve in series. A high-pressure vapor inlet of the ejector is connected with the outlet of the compressor, and a lower-pressure vapor inlet is connected with an outlet of an evaporator and provided with a check valve. A mixed vapor outlet is connected with an inlet of the auxiliary condenser. An outlet of the auxiliary expansion valve is connected with an inlet of the evaporator. Cold water passes the cooler and the auxiliary condenser to absorb heat in a parallel connection mode and then is heated to the same temperature. Warm water coming out of the cooler and warm water coming out of the auxiliary condenser are mixed and then further heated to the required final temperature through the condenser. The air source high-temperature heat pump has the beneficial effect and the advantage of exhausting with the compressor of the same mass flow. According to the air source high-temperature heat pump, the heat absorption amount of refrigerants in the evaporator is increased through pumping of the bypass ejector, thus, the heat dissipation amount is increased, and the higher energy utilization rate is obtained.
Description
Technical field
The present invention relates to art of heat pumps, particularly relate to a kind of air source high-temperature heat pump.
Background technology
Air source high-temperature heat pump is usually used in providing hot water for production process, has safety, energy-conservation advantage.Empty
Source of the gas high temperature heat pump is commonly used saturated air phase line slope on tephigram and is more than the cold-producing medium of 0 as working medium.Air source
When high temperature heat pump is with this kind of cold-producing medium for working medium, the compressor air-discharging degree of superheat is little, in condenser (reverse-flow)
Cold-producing medium and water minimum temperature difference point occur in condenser and import and export.
Owing to cold-producing medium is to condense heat release under isothermal conditions, cold-producing medium and water in condenser is caused to remove turnover
All there is excessive heat transfer temperature difference in other position outside Kou, exergy loss is big, causes energy waste.
Summary of the invention
Make because in condenser, the mean temperature difference of cold-producing medium and water is excessive for reducing conventional air source high-temperature heat pump
The energy waste become, the invention provides a kind of low-temperature water heating that is provided with and adds the air source high-temperature heat pump of thermal bypass
Device.
The technical solution adopted in the present invention is: a kind of air source high-temperature heat pump, and it includes compressor 9, condensation
Device 6, expansion valve 4, vaporizer 1, it is characterised in that: compressor 9 outlet is provided with and is sequentially connected in series ejector
7, secondary condenser 3 and the bypass of secondary expansion valve 2, be in series with cooler 5 between condenser 6 and expansion valve 4.
The high compressed steam import of described ejector 7 is connected with compressor 9 outlet, low-pressure steam import and evaporation
Device 1 outlet is connected and configures check-valves 8, and mixed vapour outlet is connected with secondary condenser 3 import.
The outlet of described secondary expansion valve 2 is connected with vaporizer 1 import.
Cold water parallel connection is by being heated to same temperature after described cooler 5 and described secondary condenser 3.
During work, compressor 9 refrigerant vapour discharged is divided into two-way.The one condensed device in tunnel 6 condenses cold
Enter cooler 5 the most afterwards to cool down further, the cooler 5 expanded valve of refrigerant liquid out 4 throttle
Vaporizer 1 is flowed into after blood pressure lowering.Another road enters ejector 7, in ejector 7, high pressure as high compressed steam
Steam realizes suction supercharging to low-pressure steam by consuming the pressure of self, ultimately becomes the mixed of pressure in one
Closing steam, mixed vapour flows into vaporizer 1 again through secondary condenser 3 condensation cooling after secondary expansion valve 2 blood pressure lowering.
Cold-producing medium absorbs heat in vaporizer 1 after evaporating and flows out, and the refrigerant vapour flowing out vaporizer 1 is divided into two-way,
One tunnel enters ejector through check-valves 8 as low-pressure steam, and another road enters compressor as air-breathing.Cold water
Parallel connection is heated to same medium temperature after subcooler 5 and secondary condenser 3, cold by cooler 5 and pair
It is further heated to required final temperature through condenser 6 after condenser 3 warm water mixing out.
The invention have the advantages that: in the face of compressor air-discharging (the same compressor of same mass flow
Wasted work), the present invention makes the cold-producing medium evaporation capacity increase in vaporizer (i.e. inhale by the suction of bypass ejector
Heat increases), thus realize heat release and increase, it is thus achieved that higher energy utilization rate.
Accompanying drawing explanation
Accompanying drawing is the system diagram of the present invention.
In figure: 1. vaporizer, 2. secondary expansion valve, 3. secondary condenser, 4. expansion valve, 5. cooler, the coldest
Condenser, 7. ejector, 8. check-valves, 9. compressor.
Detailed description of the invention
Embodiment 1: 20 DEG C of water are heated to 100 DEG C, for drying course heat supply.
As shown in drawings, system with R600a as working medium, compressor 9 discharge temperature 110 DEG C, pressure 2.38MPa
Steam be divided into two-way.One tunnel first pass through condenser 6 be cooled to 60 DEG C further through subcooler 5 again
It is cooled to 30 DEG C, the cooler 5 expanded valve of cold-producing medium out 4 enters evaporation after being depressured to 0.213MPa
Device 1.Another road enters ejector 7 as high compressed steam, and in ejector 7, high compressed steam is by consuming certainly
The low-pressure steam carrying out flash-pot 1 is aspirated and supercharging by body pressure, and (every 1kg high compressed steam can for jet coefficient
The low-pressure steam amount of suction) up to 0.2, finally give temperature 71 DEG C, the mixed vapour of pressure 0.685MPa.
Entered in secondary condenser 3 by ejector 7 mixed vapour out and be cooled to 30 DEG C, then through secondary expansion valve
Vaporizer 1 is flowed into after being depressurized to 0.213MPa.Cold-producing medium (evaporates with evaporating temperature 9 DEG C in vaporizer 1
Pressure 0.213MPa) heat absorption evaporation, the refrigerant vapour that evaporation obtains is divided into two-way, and a road is through check-valves 8
Entering ejector 7 as low-pressure steam, a road enters compressor 9 as air-breathing.The cold water that initial temperature is 20 DEG C
In parallel after subcooler 5 and secondary condenser 3, it is warming up to 40 DEG C, by cooler 5 and secondary condenser 3 out
Warm water mixing after be further heated to 100 DEG C through condenser.System hot merit ratio (heating load and the power of consumption
Ratio) reach 3.81, be directly entered the tradition of condenser condensation heating hot water compared to the whole aerofluxus of compressor
Way, can save energy 3.1%.
The invention is not restricted to above-described embodiment, above-described embodiment work is appointed by all technical spirit according to the present invention
What simple, equivalent variations or modification, in the range of belonging to the technology of the present invention.
Claims (4)
1. an air source high-temperature heat pump, it includes compressor (9), condenser (6), expansion valve (4), evaporation
Device (1), it is characterised in that: compressor (9) outlet is provided with and is sequentially connected in series ejector (7), secondary condenser
(3) and the bypass of secondary expansion valve (2), cooler (5) it is in series with between condenser (6) and expansion valve (4).
Ejector the most according to claim 1, it is characterised in that: the high compressed steam import of ejector (7)
Being connected with compressor (9) outlet, low-pressure steam import is connected with vaporizer (1) outlet and configures check-valves
(8), mixed vapour outlet is connected with secondary condenser (3) import.
Secondary expansion valve the most according to claim 1, it is characterised in that: the outlet of secondary expansion valve (2) and steaming
Send out device (1) import to be connected.
Cooler the most according to claim 1 and secondary condenser, it is characterised in that: cold water parallel connection is by cooling
It is heated to same temperature after device (5) and secondary condenser (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368091.3A CN105928201A (en) | 2016-05-20 | 2016-05-20 | Air source high-temperature heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368091.3A CN105928201A (en) | 2016-05-20 | 2016-05-20 | Air source high-temperature heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105928201A true CN105928201A (en) | 2016-09-07 |
Family
ID=56842455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610368091.3A Pending CN105928201A (en) | 2016-05-20 | 2016-05-20 | Air source high-temperature heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105928201A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440431A (en) * | 2016-09-13 | 2017-02-22 | 克莱门特捷联制冷设备(上海)有限公司 | Refrigerating system of cooling unit |
| CN110748937A (en) * | 2019-10-25 | 2020-02-04 | 河南理工大学 | Compressor double-pressure working condition large-temperature-difference heat taking electric drive heat pump unit and working method |
| US10941966B2 (en) | 2018-02-06 | 2021-03-09 | Carrier Corporation | Hot gas bypass energy recovery |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403536A (en) * | 2007-10-03 | 2009-04-08 | 株式会社电装 | Refrigerant cycle device with ejector |
| KR101150936B1 (en) * | 2009-02-11 | 2012-06-08 | 한라공조주식회사 | Freezing cycle of air conditioner for vehicles |
| CN102506512A (en) * | 2011-11-08 | 2012-06-20 | 上海交通大学 | Refrigerating system with ejector and refrigerating method thereof |
| CN102997383A (en) * | 2012-02-28 | 2013-03-27 | 张育仁 | Air conditioning compressor exhaust energy recovery and utilization method |
| CN104930704A (en) * | 2015-05-26 | 2015-09-23 | 珠海格力电器股份有限公司 | Heat pump water heater and control method thereof |
| CN206410325U (en) * | 2016-05-20 | 2017-08-15 | 桂林航天工业学院 | A kind of air source high-temperature heat pump |
-
2016
- 2016-05-20 CN CN201610368091.3A patent/CN105928201A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403536A (en) * | 2007-10-03 | 2009-04-08 | 株式会社电装 | Refrigerant cycle device with ejector |
| KR101150936B1 (en) * | 2009-02-11 | 2012-06-08 | 한라공조주식회사 | Freezing cycle of air conditioner for vehicles |
| CN102506512A (en) * | 2011-11-08 | 2012-06-20 | 上海交通大学 | Refrigerating system with ejector and refrigerating method thereof |
| CN102997383A (en) * | 2012-02-28 | 2013-03-27 | 张育仁 | Air conditioning compressor exhaust energy recovery and utilization method |
| CN104930704A (en) * | 2015-05-26 | 2015-09-23 | 珠海格力电器股份有限公司 | Heat pump water heater and control method thereof |
| CN206410325U (en) * | 2016-05-20 | 2017-08-15 | 桂林航天工业学院 | A kind of air source high-temperature heat pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440431A (en) * | 2016-09-13 | 2017-02-22 | 克莱门特捷联制冷设备(上海)有限公司 | Refrigerating system of cooling unit |
| CN106440431B (en) * | 2016-09-13 | 2019-08-20 | 克莱门特捷联制冷设备(上海)有限公司 | The refrigeration system of cooling unit |
| US10941966B2 (en) | 2018-02-06 | 2021-03-09 | Carrier Corporation | Hot gas bypass energy recovery |
| CN110748937A (en) * | 2019-10-25 | 2020-02-04 | 河南理工大学 | Compressor double-pressure working condition large-temperature-difference heat taking electric drive heat pump unit and working method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |