CN208846785U - A kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units - Google Patents
A kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units Download PDFInfo
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- CN208846785U CN208846785U CN201821385273.2U CN201821385273U CN208846785U CN 208846785 U CN208846785 U CN 208846785U CN 201821385273 U CN201821385273 U CN 201821385273U CN 208846785 U CN208846785 U CN 208846785U
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- stage compressor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
It is mixed the utility model discloses a kind of multimachine list twin-stage and beats net for air-source heat pump units, it include: evaporator, compressor set, condenser, throttle structure and control panel, it joins end to end to form a circulation loop, and be electrically connected with control panel, compressor set includes the first single-stage compressor, the second single-stage compressor and third single-stage compressor；The first check valve is provided on the exhaust pipe of first single-stage compressor and the second single-stage compressor；Second one-way valve is provided in the air inlet pipe of third single-stage compressor；It is provided with the motor-driven valve being electrically connected with temperature controller in second air inlet pipe of third single-stage compressor, temperature controller is electrically connected with master controller.Multimachine list twin-stage disclosed by the utility model is mixed to beat net for air-source heat pump units, and when outdoor temperature is at -20 DEG C or more, motor-driven valve is closed, and heat pump unit is single stage compress operation；Otherwise motor-driven valve is opened, and heat pump unit is Two-stage Compression operation, and heat pump unit is worked under design conditions mostly, improves working efficiency.
Description
Technical field
The utility model relates to air source heat pump technical field, more particularly to a kind of multimachine list twin-stage is mixed to fan the air
Air supply heat pump unit.
Background technique
Air source heat pump is a kind of energy saver for making heat flow to from low level heat energy air high-order heat source using high potential.
It is a kind of form of heat pump, the Lowlevel thermal energy (heat as contained in air, soil, water) that cannot directly utilize can be turned
It is changed to utilizable high level heat, to achieve the purpose that save part high potential (such as coal, combustion gas, oil, electric energy).
But since outside atmosphere temperature is changing always, the evaporating temperature of air source heat pump is lower than the difference of atmospheric temperature
Value must also change always, can not be constant in design value, and majority works under inefficient operating condition, cannot give full play to air-source heat
Production capacity is pumped, causes air source heat pump to cannot be guaranteed to run under design conditions always, working efficiency is low.
Therefore, how a kind of mixed air supply heat pump machine that fans the air of the multimachine list twin-stage that it can be made to work under design conditions is provided
The problem of group is those skilled in the art's urgent need to resolve.
Utility model content
It is mixed in view of this, the present invention provides a kind of multimachine list twin-stage and beats net for air-source heat pump units, temperature controller control
Motor-driven valve opens or closes, and when outdoor temperature is at -20 DEG C or more, motor-driven valve is closed, and heat pump unit is single stage compress operation；
Otherwise, motor-driven valve is opened, and heat pump unit is Two-stage Compression operation.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units, comprising: evaporator, compressor set, condenser, throttle structure
And control panel, the evaporator, the compressor set, the condenser and the throttle structure join end to end to form a circulation
Circuit, and be electrically connected with the control panel, gas-liquid separator, institute are connected between the evaporator and the compressor set
It states compressor set and includes the first single-stage compressor, the second single-stage compressor and third single-stage compressor, and the first single-stage pressure
Contracting machine, second single-stage compressor and the third single-stage compressor are connect with the exhaust pipe of the gas-liquid separator；Institute
The exhaust pipe for stating the first single-stage compressor and second single-stage compressor converges for total air escape pipe, is arranged on the total air escape pipe
There is the first check valve；Second one-way valve is provided in the air inlet pipe of the third single-stage compressor；The third single-stage compressor
It further include the second air inlet pipe, second air inlet pipe is connected to the throttle structure, and second air inlet pipe and total row
The motor-driven valve being electrically connected with temperature controller is provided between tracheae, the temperature controller is electrically connected with the control panel.
Preferably, the temperature controller includes: temperature-sensing probe and temperature controller ontology, the temperature-sensing probe and the temperature controller sheet
Body electrical connection；And the temperature-sensing probe is installed on outdoor, the temperature controller ontology is mounted on the control panel.
Multimachine list twin-stage disclosed by the utility model is mixed to beat net for air-source heat pump units, incudes outside atmosphere by temperature-sensing probe
Temperature, control motor-driven valve open or close；When outdoor temperature is at -15 DEG C or more, temperature is passed to temperature control by temperature-sensing probe
Device ontology, temperature controller ontology control motor-driven valve and close, and control panel controls the first single-stage compressor, the second single-stage compressor and the
There was only one or the operation of two compressors, remaining compressor shutdown in three single-stage compressors；When outdoor temperature -15 DEG C or less, -
At 20 DEG C or more, temperature is passed to temperature controller ontology by temperature-sensing probe, and temperature controller ontology controls motor-driven valve and closes, the first single-stage
Compressor, the second single-stage compressor and the operation of third single-stage compressor whole single stage compress；When outdoor temperature is at -20 DEG C or less
When, temperature is passed to temperature controller ontology by temperature-sensing probe, and temperature controller ontology controls motor-driven valve and opens, and heat pump unit is Two-stage Compression
Operation.At this point, condensator outlet refrigerant liquid is divided into two-way, gas is evaporated into throttle structure all the way and passes through the second air inlet
Pipe enters the suction inlet of third single-stage compressor, and another way enters intercooler and enters evaporation after heating power expansion valve reducing pressure by regulating flow again
Device.
Wherein, the first single-stage compressor, the second single-stage compressor are low-pressure stage compression, are directly sucked in and carry out the low of flash-pot
The gaseous working medium for forcing down temperature, is discharged into the western entrance of third single-stage compressor after compression, third single-stage compressor is hiigh pressure stage
Compression, at the same suck from the first single-stage compressor, the second single-stage compressor be discharged high pressure-temperature gaseous working medium with
And the gaseous working medium of the low-pressure low-temperature from intercooler, oil eliminator is discharged into after compression.
Preferably, the throttle structure is heating power expansion valve.Heating power expansion valve can not only be by the condensed height of condenser
Warm high pressure liquid refrigerant reducing pressure by regulating flow becomes the liquid-vapor mixture for holding evaporable low-temp low-pressure, evaporates into evaporator, inhales
External heat is received, but also according to the temperature signal obtained according to temperature sensing package or air tank head, expansion valve can be automatically adjusted into evaporation
The refrigerant flow of device, to adapt to the continually changing needs of cooling load；Certain degree of superheat can also be kept, prevent liquid hammer simultaneously
Cross thermal expansion valve with exception makes evaporator have certain degree of superheat by the adjusting of flow, guarantees the effective of evaporator total measurement (volume)
It utilizes, avoids liquid refrigerant from entering compressor and cause liquid hammer；It can control the degree of superheat in a certain range again simultaneously, prevent abnormal mistake
The generation of thermal phenomenon.
Preferably, oil eliminator is provided between the compressor set and the condenser, oil eliminator carries out work Jie
The separation of matter and lubricating oil, oil return to compressor set under differential pressure action, and the gaseous working medium of high pressure-temperature enters condenser
Cooling liquid becomes the liquid condition of high pressure medium temperature.
Preferably, high pressure receiver is additionally provided between the condenser and the throttle structure, high pressure receiver is used to
The high pressure liquid refrigerant of storage condenser discharge supplies the refrigerant flow of evaporator just when thermic load increases or reduces
Increase or reduce accordingly, to meet the needs that equipment adjusts variation.Liquid reservoir can also prevent from having within the condenser excessive
Refrigerant liquid, to guarantee the effective heat exchange area of condenser.
Preferably, intercooler, the intercooler energy are additionally provided between the high pressure receiver and the heating power expansion valve
Enough reduce pressurized high temperature air temperature.
It can be seen via above technical scheme that compared with prior art, the utility model, which discloses, provides a kind of multimachine list
Twin-stage is mixed to beat net for air-source heat pump units, and when outdoor temperature is at -20 DEG C or more, motor-driven valve is closed, and heat pump unit is single-stage pressure
Contracting operation；Otherwise motor-driven valve is opened, and heat pump unit is Two-stage Compression operation, in addition, under single stage compress operational mode, additionally it is possible to
Compressor is adjusted according to load variations and runs number of units, heat pump unit is worked under design conditions mostly, improves work
Efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawing is structural schematic diagram provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model embodiment discloses that a kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units, comprising: evaporator, pressure
Contracting unit, condenser, throttle structure and control panel, the evaporator, the compressor set, the condenser and the throttling
Structure joins end to end to form a circulation loop, and is electrically connected with the control panel, the evaporator and the compressor set
Between be connected with gas-liquid separator, the compressor set includes the first single-stage compressor, the second single-stage compressor and third single-stage
Compressor, and first single-stage compressor, second single-stage compressor and the third single-stage compressor with the gas
The exhaust pipe of liquid/gas separator connects；The exhaust pipe of first single-stage compressor and second single-stage compressor converges always to arrange
Tracheae is provided with the first check valve on the total air escape pipe；It is single that second is provided in the air inlet pipe of the third single-stage compressor
To valve；The third single-stage compressor further includes the second air inlet pipe, and second air inlet pipe is connected to the throttle structure, and institute
State the motor-driven valve for being provided between the second air inlet pipe and the total air escape pipe and being electrically connected with temperature controller, the temperature controller and the master
Controller electrical connection.
In order to further optimize above-mentioned technical proposal, the temperature controller includes: temperature-sensing probe and temperature controller ontology, described
Temperature-sensing probe is electrically connected with the temperature controller ontology；And the temperature-sensing probe is installed on outdoor, the temperature controller ontology is mounted on
On the control panel.
In order to further optimize above-mentioned technical proposal, the throttle structure is heating power expansion valve.
In order to further optimize above-mentioned technical proposal, oily separation is provided between the compressor set and the condenser
Device.
In order to further optimize above-mentioned technical proposal, high pressure is additionally provided between the condenser and the throttle structure
Liquid reservoir.
In order to further optimize above-mentioned technical proposal, also set up between the high pressure receiver and the heating power expansion valve
There is intercooler.
The course of work of heat pump unit are as follows: pressed firstly, the gaseous working medium of heat pump mesolow low temperature enters compressor
Contract the overheated gas state of (single-stage or twin-stage) as high pressure-temperature；Then, the overheat gaseous working medium of high pressure-temperature passes through
Oil eliminator carries out the separation of working media and lubricating oil, and oil returns to compressor, the gaseous state work of high pressure-temperature under differential pressure action
Entering condenser cooling liquid as medium becomes the liquid condition of high pressure medium temperature, while providing heat to heat user；Later, high pressure
The liquid working media of medium temperature enters evaporator through heating power expansion valve reducing pressure by regulating flow, acquire outside atmosphere heat be gasificated as it is low
Force down the gaseous state of temperature；Finally, being again introduced into compressor, recycle again and again, realizes the task to heat user heat supply.
The mixed working principle for playing the conversion of net for air-source heat pump units list Two-stage Compression of multimachine list twin-stage, is incuded by temperature-sensing probe
Outside atmosphere temperature, control motor-driven valve open or close；When outdoor temperature is at -15 DEG C or more, temperature-sensing probe passes temperature
Temperature controller ontology is passed, temperature controller ontology controls motor-driven valve and closes, and control panel controls the first single-stage compressor, the second single-stage pressure
There was only one or the operation of two compressors, remaining compressor shutdown in contracting machine and third single-stage compressor；When outdoor temperature is -15
DEG C or less, -20 DEG C or more when, temperature is passed to temperature controller ontology by temperature-sensing probe, and temperature controller ontology controls motor-driven valve and closes,
First single-stage compressor, the second single-stage compressor and the operation of third single-stage compressor whole single stage compress；When outdoor temperature is -20
DEG C or less when, temperature is passed to temperature controller ontology by temperature-sensing probe, and temperature controller ontology controls motor-driven valve and opens, and heat pump unit is double
Grade compression operation.At this point, condensator outlet refrigerant liquid is divided into two-way, enters throttle structure all the way and be evaporated to gas by the
Two air inlet pipe enter the suction inlet of third single-stage compressor, and it is laggard through heating power expansion valve reducing pressure by regulating flow again that another way enters intercooler
Enter evaporator.
Wherein, the first single-stage compressor, the second single-stage compressor are low-pressure stage compression, are directly sucked in and carry out the low of flash-pot
The gaseous working medium for forcing down temperature, is discharged into the western entrance of third single-stage compressor after compression, third single-stage compressor is hiigh pressure stage
Compression, at the same suck from the first single-stage compressor, the second single-stage compressor be discharged high pressure-temperature gaseous working medium with
And the gaseous working medium of the low-pressure low-temperature from intercooler, oil eliminator is discharged into after compression.
Multimachine list twin-stage disclosed by the utility model is mixed to beat net for air-source heat pump units, when outdoor temperature is at -20 DEG C or more
When, motor-driven valve is closed, and heat pump unit is single stage compress operation；Otherwise motor-driven valve is opened, and heat pump unit is Two-stage Compression operation, separately
Outside, under single stage compress operational mode, additionally it is possible to adjust compressor according to load variations and run number of units, enable heat pump unit
It works under design conditions mostly, improves working efficiency.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units, comprising: evaporator, compressor set, condenser, throttle structure and
Control panel, the evaporator, the compressor set, the condenser and the throttle structure, which join end to end, to be formed one and is recycled back to
Road, and be electrically connected with the control panel, which is characterized in that gas-liquid is connected between the evaporator and the compressor set
Separator, the compressor set include the first single-stage compressor, the second single-stage compressor and third single-stage compressor, and described the
The exhaust pipe of one single-stage compressor, second single-stage compressor and the third single-stage compressor with the gas-liquid separator
Connection；
The exhaust pipe of first single-stage compressor and second single-stage compressor converges for total air escape pipe, the total air escape pipe
On be provided with the first check valve；
Second one-way valve is provided in the air inlet pipe of the third single-stage compressor；The third single-stage compressor further includes second
Air inlet pipe, second air inlet pipe are connected to the throttle structure, and are set between second air inlet pipe and the total air escape pipe
It is equipped with the motor-driven valve being electrically connected with temperature controller；The temperature controller is electrically connected with the control panel.
2. a kind of multimachine list twin-stage according to claim 1 is mixed to beat net for air-source heat pump units, which is characterized in that the temperature control
Device includes: temperature-sensing probe and temperature controller ontology, and the temperature-sensing probe is electrically connected with the temperature controller ontology；And the temperature-sensing probe
It is installed on outdoor, the temperature controller ontology is mounted on the control panel.
3. a kind of multimachine list twin-stage according to claim 2 is mixed to beat net for air-source heat pump units, which is characterized in that the throttling
Structure is heating power expansion valve.
4. a kind of multimachine list twin-stage according to claim 3 is mixed to beat net for air-source heat pump units, which is characterized in that the compression
Oil eliminator is provided between unit and the condenser.
5. a kind of multimachine list twin-stage according to claim 4 is mixed to beat net for air-source heat pump units, which is characterized in that the condensation
High pressure receiver is additionally provided between device and the throttle structure.
6. a kind of multimachine list twin-stage according to claim 5 is mixed to beat net for air-source heat pump units, which is characterized in that the high pressure
Intercooler is additionally provided between liquid reservoir and the heating power expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821385273.2U CN208846785U (en) | 2018-08-27 | 2018-08-27 | A kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821385273.2U CN208846785U (en) | 2018-08-27 | 2018-08-27 | A kind of multimachine list twin-stage is mixed to beat net for air-source heat pump units |
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| CN208846785U true CN208846785U (en) | 2019-05-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361633A (en) * | 2020-11-09 | 2021-02-12 | 珠海格力电器股份有限公司 | Refrigeration system and control method thereof |
| CN114791181A (en) * | 2022-04-18 | 2022-07-26 | 东南大学 | Two-stage compressed air source heat pump system based on oil balancing oil way balancing device |
-
2018
- 2018-08-27 CN CN201821385273.2U patent/CN208846785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361633A (en) * | 2020-11-09 | 2021-02-12 | 珠海格力电器股份有限公司 | Refrigeration system and control method thereof |
| CN114791181A (en) * | 2022-04-18 | 2022-07-26 | 东南大学 | Two-stage compressed air source heat pump system based on oil balancing oil way balancing device |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190815 Address after: Room 187, Building 5, 545 Hulan Road, Baoshan District, Shanghai, 201900 Patentee after: Allied Kazakhstan Overseas Chinese Environmental Optimizing Technology (Shanghai) Co., Ltd. Address before: 2000 No. 1565 Xinxie Road, Huaxin Town, Qingpu District, Shanghai Patentee before: Shanghai Zhaoxue Refrigeration Equipment Co., Ltd. |