CN203298405U - Air source heat pump unit increasing flowing speed of refrigerating fluid - Google Patents
Air source heat pump unit increasing flowing speed of refrigerating fluid Download PDFInfo
- Publication number
- CN203298405U CN203298405U CN2013202746277U CN201320274627U CN203298405U CN 203298405 U CN203298405 U CN 203298405U CN 2013202746277 U CN2013202746277 U CN 2013202746277U CN 201320274627 U CN201320274627 U CN 201320274627U CN 203298405 U CN203298405 U CN 203298405U
- Authority
- CN
- China
- Prior art keywords
- outdoor heat
- heat pump
- valve
- heat exchanger
- compressor
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses an air source heat pump unit increasing flowing speed of refrigerating fluid. The air source heat pump unit is of a special structure and is specially designed for resolving the problem that low flowing speed of the refrigerating fluid causes oil returning difficulty of a compressor in the low-temperature environment. According to the air source heat pump unit increasing the flowing speed of the refrigerating fluid, on the basis of a common air source heat pump unit, an outdoor heat-exchanger part is evenly divided into two branch routes which are the first outdoor heat exchange branch route and the second outdoor heat exchange branch route, a first electromagnetic valve, a first outdoor heat exchanger and a second distribution head are sequentially connected to constitute the first outdoor heat exchange branch route, and a second outdoor heat exchanger, a third distribution head and a second electromagnetic valve are sequentially connected to constitute the second outdoor heat exchange branch route. The two branch routes are connected in series or in parallel through the electromagnetic valves. Stable operation of refrigerating, common heating, low-temperature heating and other work conditions is achieved. The air source heat pump unit is identical to the common heat pump unit in frame structure, does not occupy additional space, and is convenient to install.
Description
Technical field
The utility model relates to a kind of net for air-source heat pump units of novel increase cold-producing medium flow velocity, and specifically outdoor heat exchanger is divided into two parts, under common operating mode, adopts parallel form, during the low-temperature heating operating mode, adopts the series connection form, belongs to the refrigerating machine field.
Background technology
Net for air-source heat pump units, as a kind of clean, efficient energy, has obtained large-scale application in China Yangtze river basin and south China, but has run into some problems in the process of promoting northwards, and use is restricted.Net for air-source heat pump units is mainly used in needs refrigeration, cold day to heat hot day, but it is too low not wish evaporating pressure to occur, and the compressor air suction specific volume is excessive, and refrigerant flow reduces serious, the oil return difficulty, cause that heating capacity is significantly decayed, the place of compressor damage even.Net for air-source heat pump units requires operation that can be stable in the wider scope of outdoor temperature, need be from the comprehensive head it off of many aspects.
The outdoor heat exchanger of net for air-source heat pump units, affected by environment large especially, especially, under low temperature environment, affect the heating capacity of heating condition, can't reach the comfortableness requirement of indoor environment.Traditional processing method installs the electrical heating additional heat additional at indoor pusher side and realizes; Its shortcoming is from refrigeration system, not deal with problems, and the worst cold case energy consumption is large especially.The original intention of net for air-source heat pump units design is exactly to be issued to energy-saving and emission-reduction meeting the comfortable prerequisite that should require, so realize that the safe and stable operation of system is only the key of problem.
At present, most widely used net for air-source heat pump units on market, be the function of indoor and outdoor heat exchanger to be commutated to change by cross valve realize cooling system, heating condition.For low temperature environment, the plain edition net for air-source heat pump units can not meet the requirement of system stable operation: do not have enough heats to remain indoor comfortableness temperature requirement.So, in order to reach indoor temperature requirement, often adopt electrical heating to supplement institute's calorific requirement.Thereby this mode can cause energy dissipation large under low temperature environment, run counter to the original intention of air source heat pump design.
Net for air-source heat pump units is domestic has several units to develop, and is guaranteeing on system stable operation and energy-conservation basis that function and implementation respectively have partially long; Some employing air injection enthalpy-increasings, some employing hot-gas bypass, but the research of shortage heat exchanger cold-producing medium flow process, if the synthesise various consideration will be played greatly progradation to worst cold case stable operation.
The utility model content
The utility model has overcome the deficiencies in the prior art part, proposed a kind of net for air-source heat pump units of novel outdoor heat exchanger flow process: this unit reduces certain alleviation is arranged for the refrigerant flow of low-temperature heating operating mode, improved the cold-producing medium flow velocity, be conducive to system oil return, from some aspect, solve the factor of net for air-source heat pump units unfavorable stable operation under worst cold case, therefore be applicable to the place that reduces the oil return difficulty that causes because of cold-producing medium stream flow velocity.
For achieving the above object, the utility model is by the following technical solutions:
A kind of net for air-source heat pump units that increases the cold-producing medium flow velocity, on the basis of conventional net for air-source heat pump units, outdoor heat exchanger partly is divided into to two branch roads, respectively the first outdoor heat exchange branch road that is connected and composed successively by the first magnetic valve, the first outdoor heat exchanger, the second distribution head, the second outdoor heat exchange branch road that is connected and composed successively by the second outdoor heat exchanger, the 3rd distribution head, the second magnetic valve; Above-mentioned two branch roads carry out serial or parallel connection by magnetic valve.
Refrigeration cycle is connected and composed successively by compressor, cross valve, the first outdoor heat exchange branch road that is arranged in parallel and the second outdoor heat exchange branch road, the first check valve, reservoir, filter, electric expansion valve, the second check valve, the first distribution head, indoor heat exchanger, cross valve, gas-liquid separator, compressor.
Heat closed circuit and be divided into that conventional operating mode heats loop and worst cold case heats Liang Tiao loop, loop; Described conventional operating mode heats loop and is connected and composed successively by compressor, cross valve, indoor heat exchanger, the first distribution head, the 3rd check valve, reservoir, filter, electric expansion valve, the 4th check valve, the first outdoor heat exchange branch road that is arranged in parallel and the second outdoor heat exchange branch road, cross valve, gas-liquid separator, compressor;
Described worst cold case heats loop and is connected and composed successively by compressor, cross valve, indoor heat exchanger, the first distribution head, the 3rd check valve, reservoir, filter, electric expansion valve, the 4th check valve, the second distribution head, the first outdoor heat exchanger, the 3rd magnetic valve, the 3rd distribution head, the second outdoor heat exchanger, cross valve, gas-liquid separator, compressor.
Between described compressor and gas-liquid separator, low-pressure meter is installed, installation high-voltage table between compressor and cross valve, setting pressure controller between low-pressure meter and high pressure gauge.
Beneficial effect:
The utility model relates to a kind of net for air-source heat pump units of novel increase cold-producing medium flow velocity, during low-temperature heating, can effectively improve the phenomenon of the oil return difficulty that the cold-producing medium flow velocity reduces and cause.The air source heat pump system that the first outdoor heat exchange branch road and the second outdoor heat exchange branch road series and parallel flow process change, can realize under outdoor wide region operating mode functions such as freezing, heat.For adapting to energy-conservation and requirement environmental protection, conventional operating mode adopts the first outdoor heat exchange branch road and the second outdoor heat exchange branch circuit parallel connection, the low-temperature heating operating mode adopts the first outdoor heat exchange branch road to connect with the second outdoor heat exchange branch road, greatly improve the stability of the operation of unit, embodied the cleaning of air source heat pump, efficient characteristics.
The expansion of stable operation and the application such as perfect when the utility model is specially adapted to low-temperature air source heat pump unit heating condition.
The accompanying drawing explanation
Fig. 1 is system flow schematic diagram of the present utility model.
Wherein: 1, compressor; 2, cross valve; 3, the first magnetic valve; 4, the first outdoor heat exchanger; 5, the second distribution head; 6, the second outdoor heat exchanger; 7, the 3rd distribution head; 8, the second magnetic valve; 9, the first check valve; 10, reservoir; 11, filter; 12, electric expansion valve; 13, the second check valve; 14, the first distribution head; 15, indoor heat exchanger, 16, gas-liquid separator; 17, the 3rd check valve; 18, the 4th check valve; 19, the 3rd magnetic valve; 20, high pressure gauge; 21, pressure controller; 22, low-pressure meter.
The specific embodiment
As shown in the figure, the net for air-source heat pump units of a kind of novel increase cold-producing medium flow velocity of the utility model design, on the basis of conventional net for air-source heat pump units, outdoor heat exchanger partly is divided into to two branch roads, respectively the first outdoor heat exchange branch road that is connected and composed successively by the first magnetic valve, the first outdoor heat exchanger, the second distribution head, the second outdoor heat exchange branch road that is connected and composed successively by the second outdoor heat exchanger, the 3rd distribution head, the second magnetic valve; Above-mentioned two branch roads carry out serial or parallel connection by magnetic valve.
The temperature that obtains when the first outdoor heat exchanger side is during higher than-5 ℃, the first outdoor heat exchange branch road and the second outdoor heat exchange branch circuit parallel connection, completion system circulation; The temperature that obtains when the first outdoor heat exchanger side is when equaling-5 ℃, and the first outdoor heat exchange branch road and the series connection of the second outdoor heat exchange branch road, reduce refrigerant circulation passage, increases the cold-producing medium flow velocity, the completion system circulation.
Between the first outdoor heat exchange branch road and the second outdoor heat exchange branch road, the transformation of flow process series and parallel, effectively controlled the cold-producing medium flow velocity, is convenient to oil return, guarantees the stable operation of system.
On structure, adopt the general expression air source heat pump structure, separately, indoor set is realized refrigeration, heating condition requirement to indoor unit and outdoor unit, and the off-premises station coupled system completes circulation, and is easy for installation.
Compressor adopts scroll compressor, and the indoor and outdoor heat exchanger all adopts the copper pipe aluminum fin form.
Control section, adopt PLC, Based Intelligent Control, and touch Chinese and English shows man-machine interface.
Claims (4)
1. net for air-source heat pump units that increases the cold-producing medium flow velocity, it is characterized in that: on the basis of conventional net for air-source heat pump units, outdoor heat exchanger partly is divided into to two branch roads, respectively the first outdoor heat exchange branch road that is connected and composed successively by the first magnetic valve (3), the first outdoor heat exchanger (4), the second distribution head (5), the second outdoor heat exchange branch road that is connected and composed successively by the second outdoor heat exchanger (6), the 3rd distribution head (7), the second magnetic valve (8); Above-mentioned two branch roads carry out serial or parallel connection by magnetic valve (19).
2. a kind of net for air-source heat pump units that increases the cold-producing medium flow velocity according to claim 1, it is characterized in that: refrigeration cycle is connected and composed successively by compressor (1), cross valve (2), the first outdoor heat exchange branch road that is arranged in parallel and the second outdoor heat exchange branch road, the first check valve (9), reservoir (10), filter (11), electric expansion valve (12), the second check valve (13), the first distribution head (14), indoor heat exchanger (15), cross valve (2), gas-liquid separator (16), compressor (1).
3. a kind of net for air-source heat pump units that increases the cold-producing medium flow velocity according to claim 1 is characterized in that: heat closed circuit and be divided into that conventional operating mode heats loop and worst cold case heats Liang Tiao loop, loop; Described conventional operating mode heats loop and is connected and composed successively by compressor (1), cross valve (2), indoor heat exchanger (15), the first distribution head (14), the 3rd check valve (17), reservoir (10), filter (11), electric expansion valve (12), the 4th check valve (18), the first outdoor heat exchange branch road that is arranged in parallel and the second outdoor heat exchange branch road, cross valve (2), gas-liquid separator (16), compressor (1);
described worst cold case heats loop by compressor (1), cross valve (2), indoor heat exchanger (15), the first distribution head (14), the 3rd check valve (17), reservoir (10), filter (11), electric expansion valve (12), the 4th check valve (18), the second distribution head (5), the first outdoor heat exchanger (4), the 3rd magnetic valve (19), the 3rd distribution head (7), the second outdoor heat exchanger (6), cross valve (2), gas-liquid separator (16), compressor (1) connects and composes successively.
4. according to claim 2 or 3 described a kind of net for air-source heat pump units that increase the cold-producing medium flow velocity, it is characterized in that, between described compressor (1) and gas-liquid separator (16), low-pressure meter (22) is installed, installation high-voltage table (20) between compressor (1) and cross valve (2), setting pressure controller (21) between low-pressure meter (22) and high pressure gauge (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202746277U CN203298405U (en) | 2013-05-20 | 2013-05-20 | Air source heat pump unit increasing flowing speed of refrigerating fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202746277U CN203298405U (en) | 2013-05-20 | 2013-05-20 | Air source heat pump unit increasing flowing speed of refrigerating fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298405U true CN203298405U (en) | 2013-11-20 |
Family
ID=49574410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202746277U Expired - Lifetime CN203298405U (en) | 2013-05-20 | 2013-05-20 | Air source heat pump unit increasing flowing speed of refrigerating fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203298405U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712370A (en) * | 2013-12-23 | 2014-04-09 | 南京迪泽尔空调设备有限公司 | Air source heat pump system |
| CN103743266A (en) * | 2014-01-20 | 2014-04-23 | Tcl空调器(中山)有限公司 | Heat exchanger, method for controlling same, outdoor unit of air conditioner and indoor unit thereof |
| CN105841255A (en) * | 2016-03-23 | 2016-08-10 | 海信（山东）空调有限公司 | Heat exchanger, outdoor unit, heat exchange controller and heat exchange control method |
| CN106969433A (en) * | 2015-12-17 | 2017-07-21 | 艾森曼欧洲公司 | air supply device |
-
2013
- 2013-05-20 CN CN2013202746277U patent/CN203298405U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712370A (en) * | 2013-12-23 | 2014-04-09 | 南京迪泽尔空调设备有限公司 | Air source heat pump system |
| CN103712370B (en) * | 2013-12-23 | 2016-06-22 | 南京迪泽尔空调设备有限公司 | A kind of air source heat pump system |
| CN103743266A (en) * | 2014-01-20 | 2014-04-23 | Tcl空调器(中山)有限公司 | Heat exchanger, method for controlling same, outdoor unit of air conditioner and indoor unit thereof |
| CN103743266B (en) * | 2014-01-20 | 2016-08-17 | Tcl空调器(中山)有限公司 | Heat exchanger and control method, air-conditioner outdoor unit and indoor set |
| CN106969433A (en) * | 2015-12-17 | 2017-07-21 | 艾森曼欧洲公司 | air supply device |
| CN105841255A (en) * | 2016-03-23 | 2016-08-10 | 海信（山东）空调有限公司 | Heat exchanger, outdoor unit, heat exchange controller and heat exchange control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204757216U (en) | Two cold source computer lab air conditioning system | |
| CN201672748U (en) | Multifunctional air conditioning and water heating all-in-one machine | |
| CN101839585A (en) | Solar energy-air source heat pump composite system suitable for microthermal climate | |
| CN103335454A (en) | Air source heat pump device with solar hot water auxiliary defrosting function and use method thereof | |
| CN203298405U (en) | Air source heat pump unit increasing flowing speed of refrigerating fluid | |
| CN201297694Y (en) | Water source and air source integrated heating system | |
| CN201025417Y (en) | An air-conditioning thermal pump device applicable to operation under low-temperature environment | |
| CN102927718B (en) | Novel double-effect dual-temperature high temperature heat pump device | |
| CN202973654U (en) | Waste heat recovery type dual-effect dual-temperature device | |
| CN201387143Y (en) | High-temperature energy-saving water heater device for low-temperature air source heat pump with storing and dividing device | |
| CN204187900U (en) | The electrical control gear of double evaporators ice storage cold-hot pump unit | |
| CN2816690Y (en) | Device for making hot water using after heat of central air conditioner | |
| CN103206814A (en) | Supercooling device for magnetic suspension refrigerating system with natural cold source | |
| CN203216165U (en) | Supercooling device applied to natural cold source magnetic levitation refrigerating system | |
| CN203501363U (en) | Double-effect heat pump air conditioning unit | |
| CN202392923U (en) | Air-conditioner and hot-water dual purpose device | |
| CN202254710U (en) | Heat-pump type drier heat source | |
| CN204494899U (en) | A kind of novel total heat recovery Air-Cooled Heat Pump Unit | |
| CN203824008U (en) | Water chilling unit with capacity of adjusting heat recovery amount | |
| CN203203302U (en) | Variable frequency air conditioner variable flow path condenser | |
| CN203810797U (en) | Evaporator capable of changing evaporating area and high temperature water source heat pump set provided with same structure | |
| CN203518315U (en) | Water-cooling multifunctional heat pump water chilling unit | |
| CN202581627U (en) | Multisystem circulating air-conditioning unit | |
| CN201757540U (en) | Multifunctional combined cooling and heating heat pump system | |
| CN1924484A (en) | Device for hot water production with residual heat of central air conditioner and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200518 Address after: Room 907, 217 Zhongshan North Road, Gulou District, Nanjing City, Jiangsu Province, 210000 Patentee after: JIANGSU GAOKE APPLIED SCIENCE RESEARCH INSTITUTE Co.,Ltd. Address before: 210031, 7 urban economic parks along the Yanjiang Road, District, Pukou District, Jiangsu, Nanjing Patentee before: NANJING DIZEER AIR-CONDITIONING EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |