CN205690729U - Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump - Google Patents
Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump Download PDFInfo
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- CN205690729U CN205690729U CN201620393421.XU CN201620393421U CN205690729U CN 205690729 U CN205690729 U CN 205690729U CN 201620393421 U CN201620393421 U CN 201620393421U CN 205690729 U CN205690729 U CN 205690729U
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Abstract
The utility model discloses a kind of variable-flow either simplex matter heat exchangers in parallel overlapping heat pump.nullThis utility model is often organized compressor bank and is included compressor、Four-way change-over valve、Four electromagnetic valves、First Heat Exchanger、Second heat exchanger，Compressor air-discharging end connects four-way change-over valve first interface，Compressor air suction end connects four-way change-over valve the 3rd interface，First electromagnetic valve one end is connected with four-way change-over valve the second interface after being connected in parallel with second electromagnetic valve one end，The first electromagnetic valve other end is in parallel after First Heat Exchanger to be connected with condenser/evaporator the second interface by first throttle valve，It is connected with condenser/evaporator the 3rd interface after second electromagnetic valve other end parallel connection，3rd electromagnetic valve and the 4th electromagnetic valve one end are connected with four-way change-over valve the 4th interface after being connected in parallel，It is connected with condenser/evaporator first interface after 3rd electromagnetic valve other end parallel connection，By the second heat exchanger after 4th electromagnetic valve other end parallel connection、Second throttle and condenser/evaporator the 4th interface connect.Overlapping heat pump of the present utility model is made up of either simplex matter, and without devices such as expansion vessels, system structure is simple.
Description
Technical field
This utility model relates to a kind of source pump, in particular, relates to the overlapping heat pump cycle system of a kind of multi-machine heads
System, in order to improve overlapping heat pump system efficiency, the working medium flow simultaneously for heat pump can be adjusted.
Background technology
Single stage compress heat pump, owing to being limited by compressor suction and discharge compression ratio, is not suitable for compression ratio (aerofluxus
The ratio of pressure and pressure of inspiration(Pi)) heat pump more than 12.In the prior art, twin-stage is generally used when compression ratio is more than 12
Compression heat pump system.Two-stage compression heat pump unit can be by a driven by motor, it is also possible to realized by multi-machine heads combo.But this
Two ways high-low pressure intercommunication, the problem of oil return of compressor is not easily solved.
When needs obtain heat from lower temperature or need to higher temperature conveying heat, overlapping heat pump is also very
Good settling mode.Heat is absorbed heat from low-temperature heat source by low-temperature level heat pump working medium, passes to connect low-temperature level heat pump system
System and the condenser/evaporator of high-temperature level heat pump, then transferred heat in hot environment by high-temperature level heat pump working medium.
This traditional overlapping heat pump is made up of two kinds of working medium, and high-temperature level heat pump uses high temperature refrigerant, low-temperature level heat pump system
System uses cryogenic fluid.But owing to cryogenic fluid is the most in a supercritical state, generally set expansion vessel in low-temperature level, be
System is complicated and is difficulty with becoming working medium flow and controls.
Utility model content
This utility model is to overcome defect of the prior art, it is provided that the overlapping heat pump of a kind of multi-machine heads either simplex matter follows
Loop systems, in order to improve overlapping heat pump system efficiency, the working medium flow simultaneously for heat pump can be adjusted.
This utility model is achieved through the following technical solutions:
A kind of variable-flow either simplex matter heat exchangers in parallel overlapping heat pump, including many groups of compressor bank being connected in parallel, cold
Solidifying vaporizer, first throttle valve and second throttle, often group compressor bank include compressor, four-way change-over valve, the first electromagnetic valve,
Second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, First Heat Exchanger, the second heat exchanger, compressor air-discharging end connects four-way and changes
To valve first interface, compressor air suction end connects four-way change-over valve the 3rd interface, first electromagnetic valve one end and the second electromagnetic valve one
End is connected with four-way change-over valve the second interface after being connected in parallel, and first electromagnetic valve other end parallel connection after First Heat Exchanger is passed through
First throttle valve is connected with condenser/evaporator the second interface, with condenser/evaporator the 3rd interface after the second electromagnetic valve other end parallel connection
Connecting, the 3rd electromagnetic valve and the 4th electromagnetic valve one end are connected with four-way change-over valve the 4th interface after being connected in parallel, the 3rd electromagnetic valve
Be connected with condenser/evaporator first interface after other end parallel connection, after the 4th electromagnetic valve other end parallel connection by the second heat exchanger, the
Two choke valves and condenser/evaporator the 4th interface connect.
Compressor can be as the high-temperature level of kind of refrigeration cycle and low-temperature level compressor, it is possible to as heat pump cycle high-temperature level and
Low-temperature level compressor.When compressor is as the high-temperature level compressor of refrigeration system, four-way change-over valve first interface and second connects
Mouth communicates, and the 3rd interface and the 4th interface communicate, and the first electromagnetic valve and the 3rd electromagnetic valve are opened, the second electromagnetic valve and the 4th electromagnetism
Valve cuts out, through four-way change-over valve first interface, four-way change-over valve the second interface, the first electromagnetism after now working medium is compressed by the compressor
Valve condenses in First Heat Exchanger, evaporates after first throttle valve throttles in condenser/evaporator, absorbs the condensation heat of low-temperature level,
Return in compressor through the 3rd electromagnetic valve, four-way change-over valve the 4th interface, four-way change-over valve the 3rd interface again；When compressor is made
During for the low-temperature level compressor of refrigeration system, four-way change-over valve first interface and the second interface communicate, and the 3rd interface and the 4th connects
Mouth communicates, and the second electromagnetic valve and the 4th electromagnetic valve are opened, and the first electromagnetic valve and the 3rd closed electromagnetic valve, now working medium is by compressor
Condense in four-way change-over valve first interface, four-way change-over valve the second interface, the second electromagnetic valve to condenser/evaporator after compression, to
High-temperature level is dispelled the heat, and condensed working medium is evaporated after second throttle throttles in the second heat exchanger, produces refrigeration phenomenon, then warp
Cross the 4th electromagnetic valve, four-way change-over valve the 4th interface, four-way change-over valve the 3rd interface return in compressor；When compressor is as warm
During the high-temperature level compressor of pumping system, four-way change-over valve first interface and the 4th interface communicate, the second interface and the 3rd interface phase
Logical, the second electromagnetic valve and the 4th electromagnetic valve are opened, and the first electromagnetic valve and the 3rd closed electromagnetic valve, now working medium is compressed by the compressor
Condense by four-way change-over valve first interface, four-way change-over valve the 4th interface, the 4th electromagnetic valve to the second heat exchanger, produce system
Thermal phenomenon, evaporates after second throttle throttles in condenser/evaporator, absorbs the condensation heat of low-temperature level, then through the second electromagnetism
Valve, four-way change-over valve the second interface, four-way change-over valve the 3rd interface return in compressor；When low as heat pump of compressor
During temperature level compressor, four-way change-over valve first interface and the 4th interface communicate, and the second interface and the 3rd interface communicate, the first electricity
Magnet valve and the 3rd electromagnetic valve are opened, and the second electromagnetic valve and the 4th closed electromagnetic valve, through four-way after now working medium is compressed by the compressor
Reversal valve first interface, four-way change-over valve the 4th interface, the 3rd electromagnetic valve to condenser/evaporator condense, dispel the heat to high-temperature level,
Condensed working medium is evaporated after first throttle valve throttles in First Heat Exchanger, absorbs heat of low-temperature heat source, then through first
Electromagnetic valve, four-way change-over valve the second interface, four-way change-over valve the 3rd interface return in compressor.
Described compressor is in screw compressor, rotor compressor, helical-lobe compressor, piston compressor or other pattern pressure
Any one of contracting machine, variable-flow mode is adjusted by AC frequency conversion or DC frequency-changing, it is possible to uses working medium unloading and loads
Mode realizes the Flow-rate adjustment of working medium.
Described First Heat Exchanger and the second heat exchanger are air-cooled, water-cooled or other pattern heat exchanger.
Described condenser/evaporator is plate type heat exchanger, double pipe heat exchanger or other pattern heat exchanger.
Described first throttle valve and second throttle are electric expansion valve, heating power expansion valve, capillary tube or orifice throttle dress
Put.
Described electromagnetic valve can be replaced by hand stop valve, ball valve etc..
Described four-way change-over valve also can be replaced by multiple electromagnetic valves.
Compared with prior art, the beneficial effects of the utility model are:
1, system is flexible: the compressor in overlapping heat pump of the present utility model all can be by suction end and exhaust end electricity
The be turned on and off high-temperature level as refrigeration system, low-temperature level and the high-temperature level of heat pump, the low-temperature level of magnet valve use, it is achieved
High-temperature level compressor is changed with the mutual of low-temperature level compressor, it is simple to carry out inter-stage energy adjustment.
2, system is simple: overlapping heat pump of the present utility model is made up of either simplex matter, without devices such as expansion vessels, is
System simple in construction.
3, efficiency is high: become working medium flow mode realize controlling owing to using, high-temperature level heat pump and low-temperature level heat pump system
System working medium flow reasonable mixture ratio, system effectiveness is high.
4, solve compressor problem of oil return: this utility model high-temperature level heat pump is isolated with low-temperature level heat pump, solve
The oil return inequality problem occurred during employing two-stage compression cycle system of having determined.
Accompanying drawing explanation
Fig. 1 show this utility model variable-flow either simplex matter parallel connection First Heat Exchanger, the second heat exchanger overlapping heat pump
Schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
Embodiment 2
Fig. 1 is that variable-flow either simplex matter parallel connection First Heat Exchanger of the present utility model, the second heat exchanger overlapping heat pump show
It is intended to, including the many groups of compressor bank being connected in parallel, condenser/evaporator 6, first throttle valve 5-1 and second throttle 5-2, often group
Compressor bank include compressor 1, four-way change-over valve the 2, first electromagnetic valve 3-1, the second electromagnetic valve 3-2, the 3rd electromagnetic valve 3-3,
Four electromagnetic valve 3-4, First Heat Exchanger the 4, second heat exchanger 7, described compressor 1 exhaust end connects described four-way change-over valve first and connects
Mouthful 2-1, described compressor air suction end connects described four-way change-over valve the 3rd interface 2-3, described first electromagnetic valve 3-1 and described the
Two electromagnetic valve 3-2 one end are connected with described four-way change-over valve the second interface 2-2 after being connected in parallel, and described first electromagnetic valve 3-1 is another
One end is connected with described First Heat Exchanger 4 one end, described First Heat Exchanger 4 other end successively with described first throttle valve 5-1 and
Described condenser/evaporator the second interface 6-2 connects, the described second electromagnetic valve 3-2 other end and described condenser/evaporator the 3rd interface
6-3 connects, described 3rd electromagnetic valve 3-3 and described 4th electromagnetic valve 3-4 one end be connected in parallel after with described four-way change-over valve the
Four interface 6-4 connect, and the described 3rd electromagnetic valve 3-3 other end is connected with described condenser/evaporator first interface 6-1, and the described 4th
The electromagnetic valve 3-4 other end is connected with described second heat exchanger 7 one end, and described second heat exchanger 7 other end throttles with second successively
Valve 5-2 and described condenser/evaporator the 4th interface 6-4 connects.
Four interfaces of four-way change-over valve, when described four-way change-over valve first interface and described four-way change-over valve the second interface
When communicating, described four-way change-over valve the 3rd interface communicates with described four-way change-over valve the 4th interface；When described four-way change-over valve
When one interface communicates with described four-way change-over valve the 4th interface, described four-way change-over valve the second interface and described four-way change-over valve the
Three interfaces communicate.
Four interfaces of condenser/evaporator, described condenser/evaporator first interface and described condenser/evaporator the second interface phase
Logical, described condenser/evaporator the 3rd interface communicates with described condenser/evaporator the 4th interface.
The matter parallel connection First Heat Exchanger of variable-flow either simplex shown in Fig. 1, the second heat exchanger overlapping heat pump can realize unsteady flow
Amount either simplex matter cascade refrigeration system circulation, it is also possible to realize the circulation of variable-flow either simplex matter overlapping heat pump.Any of which platform institute
State compressor 1 and can not only be used for refrigeration system circulation (or heat pump circulation) high-temperature level compressor use, it is possible to as refrigeration system
System circulation (or heat pump circulation) low-temperature level compressor uses.Concrete condition is as follows:
1, described compressor 1 uses as refrigeration system cyclic high-temperature level compressor: described First Heat Exchanger 4 is condensation
Device, the described four-way change-over valve first interface of each group compressor bank communicates with described four-way change-over valve the second interface, described four-way
Reversal valve the 3rd interface communicates with described four-way change-over valve the 4th interface, described first electromagnetic valve 3-1 and described 3rd electromagnetic valve
3-3 opens, and described second electromagnetic valve 3-2 and described 4th electromagnetic valve 3-4 closes.Working medium compressed by described compressor 1 after through institute
State four-way change-over valve first interface, described four-way change-over valve the second interface and described first electromagnetic valve 3-1 entrance described first to change
Hot device 4 condenses, to function of environment heat emission, enters from described condenser/evaporator the second interface after first throttle valve 5-1 throttles through described
Enter in described condenser/evaporator 6 and evaporate, flow out from described condenser/evaporator first interface after absorbing low-temperature level refrigeration system heat,
Described pressure is returned to through described 3rd electromagnetic valve 3-3, described four-way change-over valve the 4th interface and described four-way change-over valve the 3rd interface
In contracting machine 1.
2, described compressor 1 uses as refrigeration system circulation low-temperature level compressor: described second heat exchanger 7 is evaporation
Device, the described four-way change-over valve first interface of each group compressor bank communicates with described four-way change-over valve the second interface, described four-way
Reversal valve the 3rd interface communicates with described four-way change-over valve the 4th interface, described second electromagnetic valve 3-2 and described 4th electromagnetic valve
3-4 opens, and described first electromagnetic valve 3-1 and described 3rd electromagnetic valve 3-3 closes.Working medium compressed by described compressor 1 after through institute
State four-way change-over valve first interface, described four-way change-over valve the second interface and described second electromagnetic valve 3-2 from described condensation evaporation
Device the 3rd interface enters in described condenser/evaporator 6 and condenses, from described condenser/evaporator the after high-temperature level refrigeration system heat release
Four interfaces flow out, and enter in described second heat exchanger 7 and evaporate after described second throttle 5-2 throttles, and produce refrigeration phenomenon, warp
Described 4th electromagnetic valve 3-4, described four-way change-over valve the 4th interface and described four-way change-over valve the 3rd interface return to described compression
In machine 1.
3, described compressor 1 uses as heat pump cyclic high-temperature level compressor: described second heat exchanger 7 is condensation
Device, the described four-way change-over valve first interface of each group compressor bank communicates with described four-way change-over valve the 4th interface, described four-way
Reversal valve the second interface communicates with described four-way change-over valve the 3rd interface, described second electromagnetic valve 3-2 and described 4th electromagnetic valve
3-4 opens, and described first electromagnetic valve 3-1 and described 3rd electromagnetic valve 3-3 closes.Working medium compressed by described compressor 1 after through institute
State four-way change-over valve first interface, described four-way change-over valve the 4th interface and described 4th electromagnetic valve 3-4 entrance described second to change
Hot device 7 condenses heat release, produces and heat phenomenon, connect from described condenser/evaporator the 4th after described second throttle 5-2 throttles
Mouth enters in described condenser/evaporator 6 and evaporates, from described condenser/evaporator the 3rd interface after absorption low-temperature level heat pump heat
Flow out, return to institute through described second electromagnetic valve 3-2, described four-way change-over valve the second interface and described four-way change-over valve the 3rd interface
State in compressor 1.
4, described compressor 1 uses as heat pump circulation low-temperature level compressor: described First Heat Exchanger 4 is evaporation
Device, the described four-way change-over valve first interface of each group compressor bank communicates with described four-way change-over valve the 4th interface, described four-way
Reversal valve the second interface communicates with described four-way change-over valve the 3rd interface, described first electromagnetic valve 3-1 and described 3rd electromagnetic valve
3-3 opens, and described second electromagnetic valve 3-2 and described 4th electromagnetic valve 3-4 closes.Working medium compressed by described compressor 1 after through institute
State four-way change-over valve first interface, described four-way change-over valve the 4th interface and described 3rd electromagnetic valve 3-3 from described condensation evaporation
Device first interface enters in described condenser/evaporator 6 and condenses, from described condenser/evaporator the after high-temperature level heat pump dispels the heat
Two interfaces flow out, and enter in described First Heat Exchanger 4 and evaporate after described first throttle valve 5-1 throttles, and absorb low-temperature heat source heat
Amount, returns to described through described first electromagnetic valve 3-1, described four-way change-over valve the second interface and described four-way change-over valve the 3rd interface
In compressor 1.
This utility model embodiment only lists First Heat Exchanger, the second heat exchanger overlapping heat pump in parallel, in reality
Border application can use shared First Heat Exchanger, the second heat exchanger overlapping heat pump in parallel and First Heat Exchanger in parallel, be total to
With the second heat exchanger overlapping heat pump.
Compressor in variable-flow either simplex matter overlapping heat pump of the present utility model can be real by start-stop or motor frequency conversion
Existing high-temperature level refrigeration (or heat pump) system and the changes in flow rate of low-temperature level refrigeration (or heat pump) system.
Variable-flow either simplex matter overlapping heat pump of the present utility model is when specifically using, and compressor can partly or entirely be adopted
With invariable frequency compressor, to reduce investment.
The above is only preferred implementation of the present utility model, it is noted that general for the art
For logical technical staff, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (5)
1. a variable-flow either simplex matter heat exchangers in parallel overlapping heat pump, it is characterised in that include the many groups of pressures being connected in parallel
Contracting unit, condenser/evaporator, first throttle valve and second throttle, often group compressor bank include compressor, four-way change-over valve, the
One electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, First Heat Exchanger, the second heat exchanger, compressor air-discharging end
Connecting four-way change-over valve first interface, compressor air suction end connects four-way change-over valve the 3rd interface, first electromagnetic valve one end and the
Two electromagnetic valve one end are connected with four-way change-over valve the second interface after being connected in parallel, and the first electromagnetic valve other end is through First Heat Exchanger
Rear parallel connection is connected with condenser/evaporator the second interface, with condensation evaporation after the second electromagnetic valve other end parallel connection by first throttle valve
Device the 3rd interface connects, and the 3rd electromagnetic valve and the 4th electromagnetic valve one end are connected with four-way change-over valve the 4th interface after being connected in parallel,
It is connected with condenser/evaporator first interface after 3rd electromagnetic valve other end parallel connection, by second after the 4th electromagnetic valve other end parallel connection
Heat exchanger, second throttle and condenser/evaporator the 4th interface connect.
Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump the most according to claim 1, it is characterised in that described pressure
Contracting machine is screw compressor, rotor compressor, helical-lobe compressor or piston compressor.
Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump the most according to claim 1, it is characterised in that described
One heat exchanger and the second heat exchanger are air-cooled or water-cooled.
Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump the most according to claim 1, it is characterised in that described cold
Solidifying vaporizer is plate type heat exchanger or double pipe heat exchanger.
Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump the most according to claim 1, it is characterised in that described
One choke valve and second throttle are electric expansion valve, heating power expansion valve, capillary tube or throttle orifice plate apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393421.XU CN205690729U (en) | 2016-05-03 | 2016-05-03 | Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393421.XU CN205690729U (en) | 2016-05-03 | 2016-05-03 | Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump |
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| CN205690729U true CN205690729U (en) | 2016-11-16 |
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| CN201620393421.XU Expired - Fee Related CN205690729U (en) | 2016-05-03 | 2016-05-03 | Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758049A (en) * | 2016-05-03 | 2016-07-13 | 天津商业大学 | Variable-flow single-working medium cascade heat pump system with parallel heat exchangers |
| CN108253653A (en) * | 2018-03-21 | 2018-07-06 | 天津商业大学 | Variable-flow single stage compress recycles the heat pump system with autocascade cycle |
| CN108318273A (en) * | 2018-04-24 | 2018-07-24 | 天津商业大学 | A kind of multi-cycle heat pump experimental bench |
-
2016
- 2016-05-03 CN CN201620393421.XU patent/CN205690729U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758049A (en) * | 2016-05-03 | 2016-07-13 | 天津商业大学 | Variable-flow single-working medium cascade heat pump system with parallel heat exchangers |
| CN105758049B (en) * | 2016-05-03 | 2018-07-20 | 天津商业大学 | Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump system |
| CN108253653A (en) * | 2018-03-21 | 2018-07-06 | 天津商业大学 | Variable-flow single stage compress recycles the heat pump system with autocascade cycle |
| CN108253653B (en) * | 2018-03-21 | 2023-11-07 | 天津商业大学 | Heat pump system with variable flow single-stage compression cycle and cascade cycle |
| CN108318273A (en) * | 2018-04-24 | 2018-07-24 | 天津商业大学 | A kind of multi-cycle heat pump experimental bench |
| CN108318273B (en) * | 2018-04-24 | 2024-01-16 | 天津商业大学 | Multicycle heat pump experiment table |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20170503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |