CN208223836U - A kind of multi-cycle heat pump experimental bench - Google Patents
A kind of multi-cycle heat pump experimental bench Download PDFInfo
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- CN208223836U CN208223836U CN201820590734.3U CN201820590734U CN208223836U CN 208223836 U CN208223836 U CN 208223836U CN 201820590734 U CN201820590734 U CN 201820590734U CN 208223836 U CN208223836 U CN 208223836U
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Abstract
The utility model discloses a kind of multi-cycle heat pump experimental benches, it is desirable to provide a kind of heat pump experimental bench convenient for pilot scale study condition.Including the first compressor set, second compressor set, first four-way reversing valve, second four-way reversing valve, first valve, second valve, second valve, third valve, 4th valve, 5th valve, 6th valve, indoor heat exchanger, gas-liquid separator, outdoor heat exchanger, condenser/evaporator, first throttle valve and second throttle, the heat pump experimental bench of the utility model can realize that summer single stage compress parallel connection refrigeration cycle is in parallel with winter single stage compress using the interface variation of four-way reversing valve, suction-type Auto-cascade cycle respectively, common suction-type Auto-cascade cycle, the experimental bench of overlapping heat pump cycle, comparative experiments can be done on an experimental bench by doing valve transfer according to requirement of experiment.It saves experimental bench and builds cost, debugging is easy, improves the accuracy of experimental data.
Description
Technical field
The utility model technical field of experiment equipment, more specifically, it relates to one kind, and multicycle heat pump reality can be achieved
Test platform.
Background technique
With the continuous progress of technology, heat pump techniques are widely used in heating system.The research of heat pump cycle is needed
Lots of comparing experiments is done, for the ease of the research to heat pump system, develops various experimental benches to realize the operation under different operating conditions
Experiment.Currently, heat pump system experimental bench is designed primarily directed to simple subprogram, for this purpose, needing to build in research process more
The experimental bench of kind circulation, for example need to build summer single stage compress parallel connection refrigeration cycle research summer unit parallel connection feature, it builds
Winter single stage compress parallel connection heat pump cycle studies winter unit parallel connection feature, builds winter overlapping heat pump cycle, auto cascade cycle
Height stage compression ratio experimental bench characteristic when studying heat supply in winter.Structure is complicated for these experimental benches, components are more, input cost is high,
And it is difficult to build debugging.Furthermore when doing single argument and being compared to each other experiment, dependent variable must be identical, and which results in more experiments
Platform debugging is difficult.It causes investment big moreover, building kinds of experiments platform, occupies more experimental resources.
Utility model content
The utility model is in order to overcome the defects of the prior art, a kind of multi-cycle heat pump experimental bench to be provided, in summer
Using single stage compress Double-head parallel connection refrigeration cycle, and winter is using single stage compress Double-head parallel connection heat pump cycle, superposition type heat
Pump circulation, respectively suction-type self-cascade heat pump circulation and common suction-type self-cascade heat pump circulation heating, save experimental bench and build
Cost improves the accuracy of experimental data.
The utility model is achieved through the following technical solutions:
A kind of multi-cycle heat pump experimental bench, including the first compressor set, the second compressor set, the first four-way reversing valve,
Two four-way reversing valves, the first valve, the second valve, the second valve, third valve, the 4th valve, the 5th valve, the 6th valve,
Indoor heat exchanger, gas-liquid separator, outdoor heat exchanger, condenser/evaporator, first throttle valve and second throttle, first pressure
The exhaust end of contracting unit is connect with the first interface of first four-way reversing valve, the suction end of first compressor set and institute
State the third interface connection of the first four-way reversing valve；The second interface of first four-way reversing valve respectively with the first valve and
Two valve one end connection, the 4th interface of first four-way reversing valve respectively with the 6th valve one end and the outdoor heat exchanger
First interface connection；The other end of first valve respectively with third valve, the 4th valve one end and the condensation evaporation
The third interface of device connects, the other end of the third valve respectively with the second interface of the indoor heat exchanger and the 5th valve
One end connection, the other end of the 5th valve connect with the liquid feeding end of the gas-liquid separator, the 4th valve it is another
One end is connect with the outlet side of the gas-liquid separator；The exhaust end of second compressor set and second four-way reversing valve
First interface connection, the suction end of second compressor set connect with the third interface of second four-way reversing valve；Institute
State the second interface of the second four-way reversing valve first interface with the second valve other end and the indoor heat exchanger respectively
Connection；4th interface of second four-way reversing valve respectively with the other end of the 6th valve and the condenser/evaporator
First interface connection；The second interface of the outdoor heat exchanger passes through the second throttle and the 4th of the condenser/evaporator the
Interface connection；The liquid outlet of the gas-liquid separator is connected by the first throttle valve and the second interface of the condenser/evaporator
It connects.
When doing summer cooling experiment, experimental bench is according to single stage compress parallel machine set operation: first valve, the 4th valve
And the 5th valve close, second valve, third valve and the 6th valve opening；The first of first four-way reversing valve connects
Mouth is communicated with the 4th interface, and the second interface of first four-way reversing valve is communicated with third interface；The second four-way commutation
The first interface of valve is communicated with the 4th interface, and the second interface of second four-way reversing valve is communicated with third interface；Part work
Matter enters first four-way reversing valve after first compressor set compression boosting, and part working medium is through second compressor
Enter second four-way reversing valve after group compression boosting, the working medium flowed out from second four-way reversing valve passes through the described 6th
After mixing after valve with the working medium from first four-way reversing valve, heat release is condensed into the outdoor heat exchanger, later, warp
Enter the condenser/evaporator after the second throttle reducing pressure by regulating flow, again through the third after condenser/evaporator heat exchange
Valve enters the indoor heat exchanger evaporation endothermic, and heat in absorption chamber is divided into two-way later, changes all the way through second four-way
The second compressor set suction end is returned to valve；Another way returns to described through second valve and the first four-way reversing valve
One compressor set suction end is completed for SAPMAC method.
When doing heat supply in winter experiment, experimental bench is according to single stage compress parallel machine set operation: first valve, the 4th valve
It is closed with the 5th valve, second valve, third valve and the 6th valve are opened；The first of first four-way reversing valve connects
Mouth is communicated with second interface, and the third interface of first four-way reversing valve is communicated with the 4th interface；The second four-way commutation
The first interface of valve is communicated with second interface, and the third interface of second four-way reversing valve is communicated with the 4th interface；Part work
Matter enters first four-way reversing valve after first compressor set compression boosting, and part working medium is in second compressor
Enter second four-way reversing valve after group compression boosting, the working medium flowed out from first four-way reversing valve passes through described second
After valve, it is mixed into the indoor heat exchanger condensation heat release with the working medium from second four-way reversing valve, later, through institute
Third valve is stated into the condenser/evaporator, the working medium flowed out from the condenser/evaporator throttles through the second throttle to drop
After pressure, into the outdoor heat exchanger evaporation endothermic, outdoor environment heat is absorbed, is divided into two-way later, all the way through described first
Four-way reversing valve returns to the first compressor set suction end；Another way is returned to through the 6th valve, the second four-way reversing valve
The second compressor set suction end completes heating cycle.
When doing heat supply in winter experiment, experimental bench is according to suction-type self-cascade heat pump circular flow respectively: first valve,
Third valve and the 6th valve are closed, and second valve, the 4th valve and the 5th valve are opened；First four-way reversing valve
First interface communicated with second interface, the third interface of first four-way reversing valve is communicated with the 4th interface；Described second
The first interface of four-way reversing valve is communicated with second interface, third interface and the 4th interface phase of second four-way reversing valve
It is logical；Part working medium enters first four-way reversing valve after first compressor set compression boosting, and part working medium is described
Enter second four-way reversing valve after the compression boosting of second compressor set, the working medium warp flowed out from first four-way reversing valve
It crosses after second valve after being mixed with the working medium from second four-way reversing valve, is put into indoor heat exchanger condensation
Heat, the working medium after condensing heat release enter the gas-liquid separator through the 5th valve, and low-boiling gas working medium is through the gas
Liquid/gas separator outlet side, the 4th valve, condenser/evaporator third interface enter the condenser/evaporator continue condense heat release, warp
Working medium after the condenser/evaporator heat release enters outdoor heat exchanger evaporation after the second throttle reducing pressure by regulating flow and inhales
Heat, and then return to through first four-way reversing valve suction end of first compressor set；High boiling liquid working substance warp
Described in second interface after the outlet end of the gas-liquid separator, first throttle valve reducing pressure by regulating flow through the condenser/evaporator enters
Condenser/evaporator evaporation endothermic, the working medium flowed out from the condenser/evaporator first interface are returned to through second four-way reversing valve
The second compressor set suction end completes self-folding type heating cycle.
When doing heat supply in winter experiment, experimental bench is according to common suction-type self-cascade heat pump circular flow: first valve
It is closed with third valve, second valve, the 4th valve, the 5th valve and the 6th valve are opened；The first four-way commutation
The first interface of valve is communicated with second interface, and the third interface of first four-way reversing valve is communicated with the 4th interface；Described
The first interface of two four-way reversing valves is communicated with second interface, third interface and the 4th interface phase of second four-way reversing valve
It is logical；Part working medium enters first four-way reversing valve after first compressor set compression boosting, and part working medium is described
Enter second four-way reversing valve after the compression boosting of second compressor set；The working medium warp flowed out from first four-way reversing valve
It crosses after second valve after being mixed with the working medium from second four-way reversing valve, is put into indoor heat exchanger condensation
Heat, the working medium after condensing heat release enter the gas-liquid separator through the 5th valve, and low-boiling gas working medium is through the gas
The third interface of liquid/gas separator outlet side, the 4th valve and condenser/evaporator, which enters the condenser/evaporator, to be continued to condense heat release,
Working medium after the condenser/evaporator heat release enters the outdoor heat exchanger after the second throttle reducing pressure by regulating flow and evaporates
Heat absorption, from the outdoor heat exchanger flow out low-pressure steam with flowed out from the condenser/evaporator through the 6th valve it is low
It is sucked by first four-way reversing valve by the first compressor set suction end after pressure steam mixing；High boiling liquid work
Second interface of the matter after the outlet end of the gas-liquid separator, first throttle valve reducing pressure by regulating flow through the condenser/evaporator enters
The condenser/evaporator evaporation endothermic, the low-pressure steam come out through the condenser/evaporator first interface are changed with from the outdoor
It is inhaled by second four-way reversing valve by second compressor set after the low-pressure steam mixing that hot device is flowed out through the 6th valve
The sucking of gas end, completes self-folding type heating cycle.
When doing heat supply in winter experiment, experimental bench is according to cascade type heat pump circular flow: second valve, third valve,
4th valve and the 6th valve are closed, and first valve and the 5th valve are opened；The first of first four-way reversing valve connects
Mouth is communicated with second interface, and the third interface of first four-way reversing valve is communicated with the 4th interface；The second four-way commutation
The first interface of valve is communicated with second interface, and the third interface of second four-way reversing valve is communicated with the 4th interface；The gas
High-pressure reservoir of the liquid/gas separator as low-temperature level experimental bench；Working medium is after second compressor set compression boosting through described the
Two four-way reversing valves enter the indoor heat exchanger and condense heat release, and the working medium after condensing heat release is through described in the 5th valve entrance
Gas-liquid separator, outlet end of the liquid working substance through the gas-liquid separator, first throttle valve, condenser/evaporator second interface enter
The condenser/evaporator evaporation endothermic is returned to through the condenser/evaporator first interface and second four-way reversing valve again later
The second compressor set suction end completes high-temperature level heating cycle；Working medium passes through after first compressor set compression boosting
First four-way reversing valve, the condenser/evaporator third interface, which enter in the condenser/evaporator, condenses heat release, and then
Enter the outdoor heat exchanger evaporation endothermic after the 4th interface of the condenser/evaporator, second throttle reducing pressure by regulating flow, steams
Working medium after hair heat absorption returns to the first compressor set suction end through first four-way reversing valve, completes low-temperature level heat supply and follows
Ring.
Compressor in first compressor set and the second compressor set is screw compressor, rotor compressor, screw rod
Any one of compressor and piston compressor.
The indoor heat exchanger and the outdoor heat exchanger are air-cooled or water-cooled heat exchanger.
The condenser/evaporator is plate heat exchanger or double pipe heat exchanger.
The first throttle valve and second throttle are electric expansion valve, heating power expansion valve, capillary or orifice throttle dress
It sets
Compared with prior art, the utility model has the beneficial effects that
1, experimental bench is flexible, practical: five kinds of circulations: summer cooling may be implemented in the heat pump experimental bench of the utility model
When can use single stage compress parallel connection refrigeration cycle, winter can be followed using single stage compress parallel connection heat pump cycle, cascade type heat pump
Ring, respectively suction-type self-folding type heat pump cycle or common suction-type self-folding type heat pump cycle.Under the same conditions, Ke Yi
Five kinds of circulation comparative experimentss are done on one experimental bench, five kinds of circulation conversions are flexible and convenient, convenient for doing comparative experiments.Meanwhile it saving
Experimental bench builds cost, and debugging is easy, improves the accuracy of experimental data.
2, summer cooling, when Winter heat supply, experimental bench is high-efficient: the heat pump experimental bench of the utility model outdoor temp in winter
It when spending especially low, can be recycled using cascade type heat pump, respectively suction-type self-cascade heat pump circulation and common suction-type Auto-cascade cycle
Heat pump cycle, compressor pressure ratios are small, and experimental bench is high-efficient.It, can be using simultaneously alliance when outdoor temperature is not lower in winter
Thermal cycle realizes energy adjustment by compressor head number in increase and decrease Parallel sets, more energy saving.Especially using change working medium flow
When mode, rationally, Parallel sets are by changing for cascade cycle high temperature grade experimental bench and low-temperature level experimental bench working medium flow proportion
Become the head number that puts into operation and realizes that flow is adjusted.
3, experimental bench structure is simple, and input cost is low: building a five circulating heat pump experimental benches and replaces building five experiments
Platform, a variety of public identical components of circulation, reduces input cost.
Detailed description of the invention
Fig. 1 show a kind of structural schematic diagram of multi-cycle heat pump experimental bench of the utility model；
Fig. 2 show condenser/evaporator interface diagram.
In figure: the first compressor set of 1-1., the second compressor set of 1-2., the first four-way reversing valve of 2-1., 2-2. the two or four
Logical reversal valve, the first valve of 3-1., the second valve of 3-2., 3-3. third valve, the 4th valve of 3-4., the 5th valve of 3-5., 3-
6. the 6th valve, 4. indoor heat exchangers, 5. gas-liquid separators, 6-1. first throttle valve, 6-2. second throttle, 7. condensation evaporations
The third of device, the first interface of 7-1. condenser/evaporator, the second interface of 7-2. condenser/evaporator, 7-3. condenser/evaporator connects
Mouthful, the 4th interface of 7-4. condenser/evaporator, 8. outdoor heat exchangers.
Specific embodiment
The utility model is described in detail below in conjunction with the drawings and specific embodiments.
A kind of schematic diagram of multi-cycle heat pump experimental bench of the utility model is as Figure 1-Figure 2, including the first compressor set
1-1, the second compressor set 1-2, the first four-way reversing valve 2-1, the second four-way reversing valve 2-2, the first valve 3-1, the second valve
3-2, third valve 3-3, the 4th valve 3-4, the 5th valve 3-5, the 6th valve 3-6, indoor heat exchanger 4, gas-liquid separator 5,
Outdoor heat exchanger 8, condenser/evaporator 7, first throttle valve 6-1 and second throttle 6-2, the row of the first compressor set 1-1
Gas end is connect with the first interface of the first four-way reversing valve 2-1, the suction end of the first compressor set 1-1 and described the
The third interface of one four-way reversing valve 2-1 connects；The second interface of the first four-way reversing valve 2-1 respectively with the first valve 3-
1 connects with second one end valve 3-2, the 4th interface of the first four-way reversing valve 2-1 respectively with the 6th one end valve 3-6 and
The first interface of the outdoor heat exchanger 8 connects；The other end of the first valve 3-1 respectively with third valve 3-3, the 4th
The third interface 7-3 connection of the one end valve 3-4 and the condenser/evaporator 7, the other end of the third valve 3-3 respectively with institute
The second interface for stating indoor heat exchanger 4 is connected with one end of the 5th valve 3-5, the other end of the 5th valve 3-5 with it is described
The liquid feeding end of gas-liquid separator connects, and the other end of the 4th valve 3-4 is connect with the outlet side of the gas-liquid separator；Institute
The exhaust end for stating the second compressor set 1-2 is connect with the first interface of the second four-way reversing valve 2-2, second compressor
The suction end of group 1-2 is connect with the third interface of the second four-way reversing valve 2-2；The of the second four-way reversing valve 2-2
Two interfaces are connect with the first interface of the second valve 3-2 other end and the indoor heat exchanger 4 respectively；Second four-way
The 4th interface of the reversal valve 2-2 first interface 7- with the other end of the 6th valve 3-6 and the condenser/evaporator 7 respectively
1 connection.The second interface of the outdoor heat exchanger 8 is connect by the second throttle 6-2 with the 4th of the condenser/evaporator 7
Mouth 7-4 connection.The outlet end of the gas-liquid separator 5 pass through the first throttle valve 6-1 and the condenser/evaporator 7 the
Two interface 7-2 connections.
The first compressor set 1-1 and the second compressor set 1-2 can be single compressor, or more
The compressor being connected in parallel.In the more compressors being connected in parallel, as the first pressure after the exhaust port of every compressor is in parallel
The exhaust end of contracting unit 1-1 or the second compressor set 1-2 are used as the first compressor set after the air-breathing interface of every compressor is in parallel
The suction end of 1-1 or the second compressor set 1-2.The first compressor set 1-1 can not only be used for single stage compress parallel connection refrigeration experiment
Platform circulation (or heat pump experimental bench circulation) and the cell compression machine of common suction-type auto cascade cycle use, and are alternatively arranged as inhaling respectively
The high-temperature level compressor for entering formula Auto-cascade cycle and superposition type experimental bench circulation uses；The second compressor set 1-2 can not only be used for list
Grade compresses cell compression machine of the refrigeration experiment platform circulation in parallel (or heat pump experimental bench circulation) with common suction-type auto cascade cycle
It uses, also can be used as self-folding type and superposition type experimental bench circulation low-temperature level compressor uses.
When doing summer cooling experiment, experimental bench is according to single stage compress parallel machine set operation: the first valve 3-1, the 4th
Valve 3-4 and the 5th valve 3-5 is closed, and the second valve 3-2, third valve 3-3 and the 6th valve 3-6 are opened.Described
The first interface of one four-way reversing valve 2-1 is communicated with the 4th interface, the second interface and third of the first four-way reversing valve 2-1
Interface communicates.The first interface of the second four-way reversing valve 2-2 is communicated with the 4th interface, the second four-way reversing valve 2-2
Second interface communicated with third interface.Part working medium enters described first after the first compressor set 1-1 compression boosting
Four-way reversing valve 2-1, part working medium enter the second four-way reversing valve 2- after the second compressor set 1-2 compression boosting
2, the working medium flowed out from the second four-way reversing valve 2-2 is changed after the 6th valve 3-6 with from first four-way
To after the mixing of the working medium of valve 2-1, heat release is condensed into the outdoor heat exchanger 8, later, is throttled through the second throttle 6-2
Enter the condenser/evaporator 7 after decompression, again through described in third valve 3-3 entrance after the condenser/evaporator 7 heat exchange
4 evaporation endothermic of indoor heat exchanger, heat in absorption chamber, is divided into two-way later, returns to all the way through the second four-way reversing valve 2-2
The second compressor set 1-2 suction end；Another way returns to described through the second valve 3-2 and the first four-way reversing valve 2-1
First compressor set 1-1 suction end is completed for SAPMAC method.
When doing heat supply in winter experiment, experimental bench is according to single stage compress parallel machine set operation: the first valve 3-1, the 4th
Valve 3-4 and the 5th valve 3-5 is closed, and the second valve 3-2, third valve 3-3 and the 6th valve 3-6 are opened.Described
The first interface of one four-way reversing valve 2-1 is communicated with second interface, the third interface and the 4th of the first four-way reversing valve 2-1
Interface communicates；The first interface of the second four-way reversing valve 2-2 is communicated with second interface, the second four-way reversing valve 2-2
Third interface communicated with the 4th interface.Part working medium enters described first after the first compressor set 1-1 compression boosting
Four-way reversing valve 2-1, part working medium enter the second four-way reversing valve 2- after the second compressor set 1-2 compression boosting
2, the working medium flowed out from the first four-way reversing valve 2-1 is changed after the second valve 3-2 with from second four-way
The indoor heat exchanger 4 is mixed into the working medium of valve 2-2 and condenses heat release, later, is entered through the third valve 3-3 described cold
Solidifying evaporator 7, the working medium flowed out from the condenser/evaporator 7 is after the second throttle 6-2 reducing pressure by regulating flow, into the room
8 evaporation endothermic of external heat exchanger absorbs outdoor environment heat, is divided into two-way later, returns all the way through the first four-way reversing valve 2-1
To the first compressor set 1-1 suction end；Another way returns to described through the 6th valve 3-6, the second four-way reversing valve 2-2
Second compressor set 1-2 suction end completes heating cycle.
When doing heat supply in winter experiment, experimental bench is according to suction-type self-cascade heat pump circular flow respectively: first valve
3-1, third valve 3-3 and the 6th valve 3-6 are closed, and the second valve 3-2, the 4th valve 3-4 and the 5th valve 3-5 are beaten
It opens.The first interface of the first four-way reversing valve 2-1 is communicated with second interface, the third of the first four-way reversing valve 2-1
Interface is communicated with the 4th interface；The first interface of the second four-way reversing valve 2-2 is communicated with second interface, and the described 2nd 4
The third interface of logical reversal valve 2-2 is communicated with the 4th interface.Part working medium is laggard in the first compressor set 1-1 compression boosting
Enter the first four-way reversing valve 2-1, part working medium enters described second after the second compressor set 1-2 compression boosting
Four-way reversing valve 2-2, the working medium flowed out from the first four-way reversing valve 2-1 is after the second valve 3-2 and from institute
After the working medium mixing for stating the second four-way reversing valve 2-2, heat release is condensed into the indoor heat exchanger 4, the working medium after condensing heat release
Through the 5th valve 3-5 enter the gas-liquid separator 5, low-boiling gas working medium through 5 outlet side of gas-liquid separator,
4th valve 3-4, condenser/evaporator third interface 7-3 enter the condenser/evaporator 7 continue condense heat release, through the condensation
Working medium after 7 heat release of evaporator enters 8 evaporation endothermic of outdoor heat exchanger after the second throttle 6-2 reducing pressure by regulating flow,
And then the suction end of the first compressor set 1-1 is returned to through the first four-way reversing valve 2-1；High boiling liquid work
Matter second interface through the condenser/evaporator after the outlet end of the gas-liquid separator 5, first throttle valve 6-1 reducing pressure by regulating flow
7-2 enters 7 evaporation endothermic of condenser/evaporator, described in the working medium warp flowed out from the 7 first interface 7-1 of condenser/evaporator
Second four-way reversing valve 2-2 returns to the second compressor set 1-2 suction end, completes self-folding type heating cycle.
When doing heat supply in winter experiment, experimental bench is according to common suction-type self-cascade heat pump circular flow: first valve
3-1 and third valve 3-3 is closed, and the second valve 3-2, the 4th valve 3-4, the 5th valve 3-5 and the 6th valve 3-6 are beaten
It opens.The first interface of the first four-way reversing valve 2-1 is communicated with second interface, the third of the first four-way reversing valve 2-1
Interface is communicated with the 4th interface；The first interface of the second four-way reversing valve 2-2 is communicated with second interface, and the described 2nd 4
The third interface of logical reversal valve 2-2 is communicated with the 4th interface.Part working medium is laggard in the first compressor set 1-1 compression boosting
Enter the first four-way reversing valve 2-1, part working medium enters described second after the second compressor set 1-2 compression boosting
Four-way reversing valve 2-2.The working medium flowed out from the first four-way reversing valve 2-1 is after the second valve 3-2 and from institute
After the working medium mixing for stating the second four-way reversing valve 2-2, heat release is condensed into the indoor heat exchanger 4, the working medium after condensing heat release
Through the 5th valve 3-5 enter the gas-liquid separator 5, low-boiling gas working medium through 5 outlet side of gas-liquid separator,
The third interface 7-3 of 4th valve 3-4 and condenser/evaporator 7, which enters the condenser/evaporator 7, to be continued to condense heat release, through described cold
Working medium after solidifying 7 heat release of evaporator enters the outdoor heat exchanger 8 evaporation after the second throttle 6-2 reducing pressure by regulating flow and inhales
Heat, the low-pressure steam flowed out from the outdoor heat exchanger 8 are flowed out with from the condenser/evaporator 7 through the 6th valve 3-6
Low-pressure steam mixing after sucked by the first four-way reversing valve 2-1 by the first compressor set 1-1 suction end；It is high boiling
The liquid working substance of point is after the outlet end of the gas-liquid separator 5, first throttle valve 6-1 reducing pressure by regulating flow through the condenser/evaporator
7 second interface 7-2 enters 7 evaporation endothermic of condenser/evaporator, comes out through the 7 first interface 7-1 of condenser/evaporator
Low-pressure steam with from the low-pressure steam that the outdoor heat exchanger 8 is flowed out through the 6th valve 3-6 mix after by described the
Two four-way reversing valve 2-2 are sucked by the second compressor set 1-2 suction end, complete self-folding type heating cycle.
When doing heat supply in winter experiment, experimental bench is according to cascade type heat pump circular flow: the second valve 3-2, third valve
Door 3-3, the 4th valve 3-4 and the 6th valve 3-6 are closed, and the first valve 3-1 and the 5th valve 3-5 are opened.Described first
The first interface of four-way reversing valve 2-1 is communicated with second interface, and the third interface of the first four-way reversing valve 2-1 connects with the 4th
Mouth communicates；The first interface of the second four-way reversing valve 2-2 is communicated with second interface, the second four-way reversing valve 2-2's
Third interface is communicated with the 4th interface；High-pressure reservoir of the gas-liquid separator 5 as low-temperature level experimental bench.Working medium is described
Enter the indoor heat exchanger 4 through the second four-way reversing valve 2-2 after second compressor set 1-2 compression boosting and condense heat release,
Working medium after condensing heat release enters the gas-liquid separator 5 through the 5th valve 3-5, and liquid working substance is through the gas-liquid separator
5 outlet end, first throttle valve 6-1,7 second interface 7-2 of condenser/evaporator enter 7 evaporation endothermic of condenser/evaporator, it
The second compressor set 1-2 is returned to through the condenser/evaporator first interface 7-1 and the second four-way reversing valve 2-2 again afterwards
Suction end completes high-temperature level heating cycle；Working medium is changed after the first compressor set 1-1 compression boosting through first four-way
Enter in the condenser/evaporator 7 to valve 2-1, the condenser/evaporator third interface -3 and condense heat release, and then through described cold
Enter 8 evaporation endothermic of outdoor heat exchanger after 4th interface 7-4 of solidifying evaporator 7, second throttle 6-2 reducing pressure by regulating flow, steams
Working medium after hair heat absorption returns to the first compressor set 1-1 suction end through the first four-way reversing valve 2-1, completes low-temperature level
Heating cycle.
Wherein, the compressor in the first compressor set 1-1 and the second compressor set 1-2 is screw compressor, rotor
Any one of compressor, helical-lobe compressor and piston compressor.
The indoor heat exchanger 4 and the outdoor heat exchanger 8 are air-cooled or water-cooled heat exchanger.
The condenser/evaporator 7 is plate heat exchanger or double pipe heat exchanger.
The first valve 3-1, the second valve 3-2, third valve 3-3, the 4th valve 3-4, the 5th valve 3-5, the 6th
Valve 3-6 can be replaced by hand stop valve, ball valve etc..
The first four-way reversing valve 2-1 and the second four-way reversing valve 2-2 can also be by multiple valves or multiple triple valve generations
It replaces.
The heat pump experimental bench of the utility model can realize that summer single stage compress is in parallel using the interface variation of four-way reversing valve
Refrigeration cycle is in parallel with winter single stage compress, distinguishes the reality of suction-type Auto-cascade cycle, common suction-type Auto-cascade cycle, overlapping heat pump cycle
Platform is tested, comparative experiments can be done on an experimental bench by doing valve transfer according to requirement of experiment.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (10)
1. a kind of multi-cycle heat pump experimental bench, which is characterized in that including the first compressor set, the second compressor set, the first four-way
Reversal valve, the second four-way reversing valve, the first valve, the second valve, the second valve, third valve, the 4th valve, the 5th valve,
6th valve, indoor heat exchanger, gas-liquid separator, outdoor heat exchanger, condenser/evaporator, first throttle valve and second throttle,
The exhaust end of first compressor set is connect with the first interface of first four-way reversing valve, first compressor set
Suction end is connect with the third interface of first four-way reversing valve；The second interface of first four-way reversing valve is respectively with
One valve and the connection of second valve one end, the 4th interface of first four-way reversing valve respectively with the 6th valve one end and described
The first interface of outdoor heat exchanger connects；The other end of first valve respectively with third valve, the 4th valve one end and institute
State the third interface connection of condenser/evaporator, the other end of the third valve second interface with the indoor heat exchanger respectively
It being connected with one end of the 5th valve, the other end of the 5th valve is connect with the liquid feeding end of the gas-liquid separator, and described
The other end of four valves is connect with the outlet side of the gas-liquid separator；The exhaust end of second compressor set and described second
The first interface of four-way reversing valve connects, and the suction end of second compressor set and the third of second four-way reversing valve connect
Mouth connection；The second interface of second four-way reversing valve respectively with the second valve other end and the indoor heat exchanger
First interface connection；4th interface of second four-way reversing valve respectively with the other end of the 6th valve and the condensation
The first interface of evaporator connects；The second interface of the outdoor heat exchanger passes through the second throttle and the condensation evaporation
4th interface of device connects；The liquid outlet of the gas-liquid separator pass through the first throttle valve and the condenser/evaporator the
The connection of two interfaces.
2. multi-cycle heat pump experimental bench according to claim 1, which is characterized in that when doing summer cooling experiment, experimental bench
According to single stage compress parallel machine set operation: first valve, the 4th valve and the 5th valve are closed, second valve, the
Three valves and the 6th valve are opened；The first interface of first four-way reversing valve is communicated with the 4th interface, first four-way
The second interface of reversal valve is communicated with third interface；The first interface of second four-way reversing valve is communicated with the 4th interface, institute
The second interface for stating the second four-way reversing valve is communicated with third interface；Part working medium is after first compressor set compression boosting
Into first four-way reversing valve, part working medium enters second four-way after second compressor set compression boosting and changes
To valve, the working medium flowed out from second four-way reversing valve is after the 6th valve and from first four-way reversing valve
Working medium mixing after, into the outdoor heat exchanger condense heat release, later, after the second throttle reducing pressure by regulating flow enter institute
Condenser/evaporator is stated, enters indoor heat exchanger evaporation through the third valve again after condenser/evaporator heat exchange and inhales
Heat, heat in absorption chamber, is divided into two-way later, returns to the second compressor set air-breathing through second four-way reversing valve all the way
End；Another way returns to the first compressor set suction end through second valve and the first four-way reversing valve, completes cooling supply and follows
Ring.
3. multi-cycle heat pump experimental bench according to claim 1, which is characterized in that when doing heat supply in winter experiment, experimental bench
According to single stage compress parallel machine set operation: first valve, the 4th valve and the 5th valve are closed, second valve, the
Three valves and the 6th valve are opened；The first interface of first four-way reversing valve is communicated with second interface, first four-way
The third interface of reversal valve is communicated with the 4th interface；The first interface of second four-way reversing valve is communicated with second interface, institute
The third interface for stating the second four-way reversing valve is communicated with the 4th interface；Part working medium is after first compressor set compression boosting
Into first four-way reversing valve, part working medium enters second four-way after second compressor set compression boosting and changes
To valve, the working medium flowed out from first four-way reversing valve commutates after second valve with from second four-way
The working medium of valve is mixed into the indoor heat exchanger condensation heat release, later, enters the condenser/evaporator through the third valve,
The working medium flowed out from the condenser/evaporator is evaporated into the outdoor heat exchanger and is inhaled after the second throttle reducing pressure by regulating flow
Heat absorbs outdoor environment heat, is divided into two-way later, returns to first compressor set through first four-way reversing valve all the way
Suction end；Another way returns to the second compressor set suction end through the 6th valve, the second four-way reversing valve, completes heat supply
Circulation.
4. multi-cycle heat pump experimental bench according to claim 1, which is characterized in that when doing heat supply in winter experiment, experimental bench
According to suction-type self-cascade heat pump circular flow respectively: first valve, third valve and the 6th valve are closed, and described second
Valve, the 4th valve and the 5th valve are opened；The first interface of first four-way reversing valve is communicated with second interface, and described
The third interface of one four-way reversing valve is communicated with the 4th interface；The first interface of second four-way reversing valve and second interface phase
Logical, the third interface of second four-way reversing valve is communicated with the 4th interface；Part working medium is compressed in first compressor set
Enter first four-way reversing valve after boosting, part working medium enters described second after second compressor set compression boosting
Four-way reversing valve, the working medium flowed out from first four-way reversing valve is after second valve and from second four-way
After the working medium mixing of reversal valve, heat release is condensed into the indoor heat exchanger, the working medium after condensing heat release is through the 5th valve
Into the gas-liquid separator, low-boiling gas working medium is through the gas-liquid separator outlet side, the 4th valve, condenser/evaporator
Third interface enter the condenser/evaporator and continue to condense heat release, working medium after the condenser/evaporator heat release is through described the
Enter the outdoor heat exchanger evaporation endothermic after two throttle valve reducing pressure by regulating flow, and then is returned to through first four-way reversing valve
The suction end of first compressor set；Outlet end of the high boiling liquid working substance through the gas-liquid separator, first throttle valve
Second interface through the condenser/evaporator after reducing pressure by regulating flow enters the condenser/evaporator evaporation endothermic, from the condensation evaporation
The working medium of device first interface outflow returns to the second compressor set suction end through second four-way reversing valve, completes Auto-cascade cycle
Formula heating cycle.
5. multi-cycle heat pump experimental bench according to claim 1, which is characterized in that when doing heat supply in winter experiment, experimental bench
According to common suction-type self-cascade heat pump circular flow: first valve and third valve are closed, second valve, the 4th
Valve, the 5th valve and the 6th valve are opened；The first interface of first four-way reversing valve is communicated with second interface, and described
The third interface of one four-way reversing valve is communicated with the 4th interface；The first interface of second four-way reversing valve and second interface phase
Logical, the third interface of second four-way reversing valve is communicated with the 4th interface；Part working medium is compressed in first compressor set
Enter first four-way reversing valve after boosting, part working medium enters described second after second compressor set compression boosting
Four-way reversing valve；The working medium flowed out from first four-way reversing valve is after second valve and from second four-way
After the working medium mixing of reversal valve, heat release is condensed into the indoor heat exchanger, the working medium after condensing heat release is through the 5th valve
Into the gas-liquid separator, low-boiling gas working medium is through the gas-liquid separator outlet side, the 4th valve and condensation evaporation
The third interface of device, which enters the condenser/evaporator, to be continued to condense heat release, described in the working medium warp after the condenser/evaporator heat release
Enter the outdoor heat exchanger evaporation endothermic after second throttle reducing pressure by regulating flow, the low-pressure steam flowed out from the outdoor heat exchanger
With from the low-pressure steam that the condenser/evaporator is flowed out through the 6th valve mix after by first four-way reversing valve
It is sucked by the first compressor set suction end；Outlet end, first segment of the high boiling liquid working substance through the gas-liquid separator
The second interface through the condenser/evaporator enters the condenser/evaporator evaporation endothermic after flowing valve reducing pressure by regulating flow, through the condensation
The low-pressure steam that evaporator first interface comes out is mixed with the low-pressure steam flowed out from the outdoor heat exchanger through the 6th valve
It is sucked afterwards by second four-way reversing valve by the second compressor set suction end, completes self-folding type heating cycle.
6. multi-cycle heat pump experimental bench according to claim 1, which is characterized in that when doing heat supply in winter experiment, experimental bench
According to cascade type heat pump circular flow: second valve, third valve, the 4th valve and the 6th valve are closed, and described first
Valve and the 5th valve are opened；The first interface of first four-way reversing valve is communicated with second interface, and first four-way changes
It is communicated to the third interface of valve with the 4th interface；The first interface of second four-way reversing valve is communicated with second interface, described
The third interface of second four-way reversing valve is communicated with the 4th interface；The gas-liquid separator is stored up as the high pressure of low-temperature level experimental bench
Liquid device；It is cold that working medium enters the indoor heat exchanger through second four-way reversing valve after second compressor set compression boosting
Solidifying heat release, the working medium after condensing heat release enter the gas-liquid separator through the 5th valve, and liquid working substance is through the gas-liquid point
Enter the condenser/evaporator evaporation endothermic from the outlet end of device, first throttle valve, condenser/evaporator second interface, passes through again later
The condenser/evaporator first interface and second four-way reversing valve return to the second compressor set suction end, complete high temperature
Grade heating cycle；Working medium is after first compressor set compression boosting through first four-way reversing valve, the condensation evaporation
Device third interface, which enters in the condenser/evaporator, condenses heat release, and then the 4th interface through the condenser/evaporator, second
Enter the outdoor heat exchanger evaporation endothermic after throttle valve reducing pressure by regulating flow, the working medium after evaporation endothermic commutates through first four-way
Valve returns to the first compressor set suction end, completes low-temperature level heating cycle.
7. multi-cycle heat pump experimental bench according to claim 1 to 6, which is characterized in that first compressor
Compressor in group and the second compressor set is in screw compressor, rotor compressor, helical-lobe compressor and piston compressor
It is any.
8. multi-cycle heat pump experimental bench according to claim 7, which is characterized in that the indoor heat exchanger and the outdoor
Heat exchanger is air-cooled or water-cooled heat exchanger.
9. multi-cycle heat pump experimental bench according to claim 7, which is characterized in that the condenser/evaporator is plate-type heat-exchange
Device or double pipe heat exchanger.
10. multi-cycle heat pump experimental bench according to claim 7, which is characterized in that the first throttle valve and the second section
Stream valve is electric expansion valve, heating power expansion valve, capillary or throttle orifice plate apparatus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820590734.3U CN208223836U (en) | 2018-04-24 | 2018-04-24 | A kind of multi-cycle heat pump experimental bench |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820590734.3U CN208223836U (en) | 2018-04-24 | 2018-04-24 | A kind of multi-cycle heat pump experimental bench |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318273A (en) * | 2018-04-24 | 2018-07-24 | 天津商业大学 | A kind of multi-cycle heat pump experimental bench |
| CN109827794A (en) * | 2019-03-11 | 2019-05-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of high enthalpy dissociating gas cooler thermodynamic property test platform, system and method |
| CN112963979A (en) * | 2021-03-14 | 2021-06-15 | 北京工业大学 | Overlapping heat pump system capable of realizing work cycle conversion |
-
2018
- 2018-04-24 CN CN201820590734.3U patent/CN208223836U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109827794A (en) * | 2019-03-11 | 2019-05-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of high enthalpy dissociating gas cooler thermodynamic property test platform, system and method |
| CN112963979A (en) * | 2021-03-14 | 2021-06-15 | 北京工业大学 | Overlapping heat pump system capable of realizing work cycle conversion |
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