CN208254001U - A kind of multi-evaporator heat pump from defrost continuous heat supply - Google Patents
A kind of multi-evaporator heat pump from defrost continuous heat supply Download PDFInfo
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- CN208254001U CN208254001U CN201820611544.5U CN201820611544U CN208254001U CN 208254001 U CN208254001 U CN 208254001U CN 201820611544 U CN201820611544 U CN 201820611544U CN 208254001 U CN208254001 U CN 208254001U
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Abstract
The utility model discloses a kind of multi-evaporator heat pump and its control method from defrost continuous heat supply, which includes more than two evaporators in parallel；The outlet of compressor is sequentially connected the first valve first pipe, condenser, second pipe, the first imported valve of the first expansion valve, third pipeline and evaporator, the first imported valve of evaporator connects the import of evaporator, and the outlet of evaporator is sequentially connected the import of evaporator first outlet valve, the 4th pipeline, gas-liquid separator, compressor；4th pipeline connects the 5th pipeline, and the 5th pipeline connects the import of condenser by the second valve；The outlet of compressor connects the 6th pipeline, 6th pipeline connects the second imported valve of evaporator, the import of the second imported valve of evaporator connection evaporator, the outlet of evaporator connects evaporator second outlet valve, evaporator second outlet valve connects the second expansion valve by the 7th pipeline, and the second expansion valve connects the outlet of condenser.The utility model can be realized continuous heat supply, from thermal cream.
Description
Technical field
The utility model relates to heat pump application fields, more particularly to a kind of multi-evaporator heat from defrost continuous heat supply
Pump.
Background technique
Heat pump basic function currently on the market can realize heating and refrigeration, can be used for winter heating and summer system
It is cold.Defrost must be carried out to evaporator during heating, existing heat pump structure, in defrost, heat pump needs to stop heating,
It just can be carried out defrost.Stopping heating will affect heating effect, for especially big as the influence of heating terminal using fan coil,
Heat pump system pipeline will also be constantly by cooling thermal impact simultaneously.Influence the service life of pipeline.
Utility model content
The utility model in order to solve the deficiencies in the prior art, provide one kind can be realized continuous heat supply, from
The multi-evaporator heat pump of thermal cream.
The utility model also provides a kind of multi-evaporator heat pump using described from defrost continuous heat supply and carries out defrost, system
The control method of heat and refrigeration.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The utility model embodiment provides a kind of multi-evaporator heat pump from defrost continuous heat supply, including at least one evaporation
Device, compressor, condenser, the first expansion valve and the second expansion valve；
The evaporator is two or more, and more than two evaporators are to be connected in parallel；
The outlet of the compressor connects the first valve, first valve by first pipe connection condenser into
Mouthful, the outlet of the condenser connects the first expansion valve by second pipe, and first expansion valve is connected by third pipeline
More than two the first imported valves of evaporator, each first imported valve of evaporator connect the import of corresponding evaporator,
The outlet of the evaporator connects corresponding evaporator first outlet valve, and more than two evaporator first outlet valves are logical
Cross the 4th pipeline, gas-liquid separator connects the import of the compressor；
4th pipeline connects the 5th pipeline, and the 5th pipeline connects the import of condenser by the second valve；
The outlet of the compressor connects the 6th pipeline, and the 6th pipeline connects the second inlet valve of more than two evaporators
Door, each second imported valve of evaporator connect the import of corresponding evaporator, and the outlet connection of the evaporator is corresponding
Evaporator second outlet valve, more than two evaporator second outlet valves pass through the second expansion of the 7th pipeline connection
Valve, the outlet of the second expansion valve connection condenser.
At least one evaporator is equipped with an inlet pipeline and an outlet conduit；
At least one described inlet pipeline is connected with import tee tube, and a nozzle of the import tee tube passes through first
The first imported valve of evaporator connects the third pipeline, another nozzle connects institute by first the second imported valve of evaporator
State the 6th pipeline；
At least one described outlet conduit is connected with outlet tee tube, and a nozzle of the outlet tee tube passes through first
Evaporator first outlet valve connects the 4th pipeline, another nozzle passes through another the first evaporator second outlet valve
Connect the 7th pipeline.
Further, an inlet pipeline and one outlet pipeline, the inlet tube are equipped on each evaporator
Tee tube is respectively connected on road and outlet conduit, two nozzles of the tee tube are connected separately with valve.
5th pipeline connects the first pipe by the second valve.
Second expansion valve connects the second pipe.
First valve, the second valve, first the first imported valve of evaporator, first the second imported valve of evaporator,
First evaporator first outlet valve and the first evaporator second outlet valve are solenoid valve.
The utility model also provides a kind of multi-evaporator heat pump using above-mentioned from defrost continuous heat supply and carries out defrost, system
The control method of heat and refrigeration, comprising the following steps:
When heating work, when all evaporators all do not need defrost, the first valve, the first inlet valve of evaporator are opened
Door, evaporator first outlet valve, the second expansion valve and the first expansion valve are opened, remaining valve is closed, and refrigerant is successively through compressing
Machine outlet, the first valve, first pipe, the import of condenser, the outlet of condenser, second pipe, the first expansion valve, third pipe
Road, the first imported valve of evaporator, the import of evaporator, evaporator, the outlet of evaporator, evaporator first outlet valve,
The import of four pipelines, gas-liquid separator and compressor enter compressor cycle constantly absorbed heat, compressed, heat release, externally supply
Heat；
When some evaporator needs defrost, in the state of heating operating working properly, the steaming for needing defrost is first closed
The first imported valve of evaporator and evaporator first outlet valve of device side are sent out, the steaming for needing the evaporator side of defrost is opened
The second imported valve of device and evaporator second outlet valve are sent out, keeps defrosting circulation loop open-minded, after compressor pressurization heating
Refrigerant understands some and is diverted to the 6th pipeline, successively by the second imported valve of evaporator, evaporator import, need defrost
Evaporator, the outlet of evaporator, evaporator second outlet valve, after the 7th pipeline and the second expansion valve, into second pipe
Or condenser, compressor is returned to after entering the evaporator to absorb heat heat absorption by the first expansion valve again later；
In refrigeration work, the second valve, the second imported valve of evaporator, evaporator second outlet valve and second are opened
Expansion valve is opened, remaining valve is closed, and refrigerant is successively through compressor outlet, the 6th pipeline, the second imported valve of evaporator, evaporation
The import of device, evaporator, the outlet of evaporator, evaporator second outlet valve, the 7th pipeline, the second expansion valve, condenser go out
Mouthful, the import of condenser and condenser, subsequently into enter the second valve after first pipe or by the import of condenser it is direct
Into the second valve, after the import that the 5th pipeline, the 4th pipeline, gas-liquid separator and compressor are sequentially entered after the second valve
Into compressor cycle, cooling capacity is externally provided.
The utility model can guarantee heat pump system when defrost continual heat supply, realize heating while to need
Want the evaporator of defrost to carry out defrost, system pipeline operational mode in entire Heating Season be all it is identical, system operation is more stable.
Detailed description of the invention
Fig. 1 is the schematic diagram of the multi-evaporator heat pump provided by the embodiment of the utility model from defrost continuous heat supply；
Fig. 2 is that the utility model is heating while being the operation figure that one of them needs defrosting evaporator defrost；
Fig. 3 is that system of the utility model in refrigeration runs figure.
In figure: 1 compressor, 2 condensers, 3 first evaporators, 4 second evaporators, 5 third evaporators, 6 first valves, 7
Second valve, 8 second expansion valves, 9 first expansion valves, 10 first evaporator first outlet valves, 11 first evaporators second go out
Mouth valve, 12 first the second imported valves of evaporator, 13 first the first imported valves of evaporator, 14 second evaporator first outlets
Valve, 15 second evaporator second outlet valves, 16 second the second imported valves of evaporator, 17 second the first inlet valves of evaporator
Door, 18 third evaporator first outlet valves, 19 third evaporator second outlet valves, 20 the second inlet valves of third evaporator
Door, 21 the first imported valves of third evaporator, 22 first pipes, 23 second pipes, 24 third pipelines, 25 the 4th pipelines, 26
Five pipelines, 27 the 6th pipelines, 28 the 7th pipelines, 29 import tee tubes, 30 outlet tee tubes, 31 gas-liquid separators.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, but not as the restriction to the utility model.
Referring to Fig. 1, a kind of multi-evaporator heat pump from defrost continuous heat supply, including evaporator, compressor 1, condenser 2,
First expansion valve 9 and the second expansion valve 8；
The evaporator is two or more, and more than two evaporators are to be connected in parallel；
Evaporator includes the first evaporator 3, the second evaporator 4 and third evaporator 5；
The outlet of compressor 1 connects the first valve 6, and the first valve 6 connects the import of condenser 2 by first pipe 22,
The outlet of condenser 2 connects the first expansion valve 9 by second pipe 23, and the first expansion valve 9 passes through the connection of third pipeline 24 first
The first imported valve of evaporator 13, first the first imported valve of evaporator 13 connect the import of the first evaporator 3, the first evaporator
3 outlet connects the first evaporator first outlet valve 10, and the first evaporator first outlet valve 10 passes through the 4th pipeline 25, gas
The import of 31 connect compressor 1 of liquid/gas separator；
Third pipeline 24 is also connected with second the first imported valve of evaporator 17, the connection of second the first imported valve of evaporator 17
The import of second evaporator 4, the outlet of the second evaporator 4 connect the second evaporator first outlet valve 14, the second evaporator the
One outlet valve 14 connects the 4th pipeline 25；
Third pipeline 24 is also connected with the first imported valve of third evaporator 21, and the first imported valve of third evaporator 21 connects
The import of third evaporator 5, the outlet of third evaporator 5 connect third evaporator first outlet valve 18, the first evaporator the
One outlet valve 18 connects the 4th pipeline 25；
4th pipeline 25 connects the 5th pipeline 26, and the 5th pipeline 26 connects the import of condenser 2 by the second valve 7；
The outlet of compressor 1 connects the 6th pipeline 27, and the 6th pipeline 27 connects first the second imported valve of evaporator 12, the
One the second imported valve of evaporator 12 connects the import of the first evaporator 3, and the outlet of the first evaporator 3 connects the first evaporator the
Two outlet valves 11, the first evaporator second outlet valve 11 connect the second expansion valve 8, the second expansion valve by the 7th pipeline 28
The outlet of 8 connection condensers 2；
6th pipeline 27 is also connected with second the second imported valve of evaporator 16, the connection of second the second imported valve of evaporator 16
The import of second evaporator 4, the outlet of the second evaporator 4 connect the second evaporator second outlet valve 15, the second evaporator the
Two outlet valves 15 connect the 7th pipeline 28；
6th pipeline 27 is also connected with the second imported valve of third evaporator 20, and the second imported valve of third evaporator 20 connects
The import of third evaporator 5, the outlet of third evaporator 5 connect third evaporator second outlet valve 19, third evaporator the
Two outlet valves 19 connect the 7th pipeline 28.
Continuous heat supply from the multi-evaporator heat pump of defrost continuous heat supply can be realized using the utility model and from thermalization
Frost, it is ensured that the stable operation of heating system.
Preferably, evaporator is two or more, and more than two evaporators are to be connected in parallel；
At least one evaporator is equipped with an inlet pipeline and an outlet conduit；
At least one described inlet pipeline is connected with import tee tube 29, and a nozzle of import tee tube 29 passes through first
The first imported valve of evaporator 13 connects third pipeline 24, another nozzle is connected by first the second imported valve of evaporator 12
6th pipeline 27；
At least one described outlet conduit is connected with outlet tee tube 30, and a nozzle of outlet tee tube 30 passes through first
Evaporator first outlet valve 10 connects the 4th pipeline 25, another nozzle passes through another the first evaporator second outlet valve
11 the 7th pipelines 28 of connection.
A set of heat exchanging pipe in evaporator can be made real in the case where multiple evaporators are in parallel using tee tube connection
Now heat absorption and two functions of defrost.
Further, an inlet pipeline and one outlet pipeline, the inlet tube are equipped on each evaporator
Tee tube is respectively connected on road and outlet conduit, two nozzles of the tee tube are connected separately with valve.
The inlet and outlet of third evaporator 4 and the 4th evaporator 5 are equipped with tee tube；
One nozzle of import tee tube 29 connects third pipeline 24 by second the first imported valve of evaporator 17, another
A nozzle connects the 6th pipeline 27 by second the second imported valve of evaporator 16；
A nozzle for exporting tee tube 30 connects the 4th pipeline 25 by the second evaporator first outlet valve 14, another
A nozzle connects the 7th pipeline 28 by another the second evaporator second outlet valve 15.
One nozzle of import tee tube 29 connects third pipeline 24 by the first imported valve of third evaporator 21, another
A nozzle connects the 6th pipeline 27 by the second imported valve of third evaporator 20；
A nozzle for exporting tee tube 30 connects the 4th pipeline 25 by third evaporator first outlet valve 18, another
A nozzle connects the 7th pipeline 28 by another third evaporator second outlet valve 19.
Further, the 5th pipeline 26 connects first pipe 22 by the second valve 7.
Further, the second expansion valve 8 connects second pipe 23.
Further, it is automatically controlled to realize, the first valve 6, the second valve 7, the first imported valve of evaporator, evaporation
The second imported valve of device, evaporator first outlet valve and evaporator second outlet valve are solenoid valve.
Specifically, the first evaporator first outlet valve 10, the first evaporator second outlet valve 11, the first evaporator
Two imported valves 12, first evaporator the first imported valve 13, the second evaporator first outlet valve 14, the second evaporator second
Outlet valve 15, second evaporator the second imported valve 16, second the first imported valve of evaporator 17, third evaporator first go out
Mouthful valve 18, third evaporator second outlet valve 19, the second imported valve of third evaporator 20 and third evaporator first into
Mouth valve 21 is solenoid valve.
The utility model also provides a kind of multi-evaporator heat pump using above-mentioned from defrost continuous heat supply and carries out defrost, system
The control method of heat and refrigeration, comprising the following steps:
As shown in Fig. 2, when all evaporators all do not need defrost, opening the first valve 6, first when heating work
Evaporator the first imported valve 13, the first evaporator first outlet valve 10, second the first imported valve of evaporator 17, second steam
Device first outlet valve 14, the first imported valve of third evaporator 21, third evaporator first outlet valve 18, second is sent out to expand
Valve 8 and the first expansion valve 9, remaining valve are closed, and refrigerant is successively through the outlet of compressor 1, the first valve 6, first pipe 22, condensation
The import of device 2, the outlet of condenser 2, second pipe 23, the first expansion valve 9 and third pipeline 24 divide respectively from third pipeline 24
Three tunnels finally import the 4th pipeline 25；
The first via: from third pipeline 24 sequentially enter first evaporator the first imported valve 13, the first evaporator 3 into
Mouth, the first evaporator 3, the outlet of the first evaporator 3, the first evaporator first outlet valve 10 and the 4th pipeline 25；
Second tunnel: from third pipeline 24 sequentially enter second evaporator the first imported valve 17, the second evaporator 4 into
Mouth, the second evaporator 4, the outlet of the second evaporator 4, the second evaporator first outlet valve 14 and the 4th pipeline 25；
Third road: sequentially entering the first imported valve of third evaporator 21 from third pipeline 24, third evaporator 5 into
Mouth, third evaporator 5, the outlet of third evaporator 5, third evaporator first outlet valve 18 and the 4th pipeline 25；
The import that refrigerant sequentially enters compressor 1 through the 4th pipeline 25 again enters compressor cycle, constantly absorbed heat,
Compression, heat release, external heat supply；
When some evaporator needs defrost, by taking the first evaporator 3 needs defrost as an example, operating working properly is being heated
Under state, first evaporator the first imported valve 13 and the first evaporator for needing 3 side of the first evaporator of defrost are first closed
First outlet valve 10 opens first the second imported valve of evaporator 12 and first for needing 3 side of the first evaporator of defrost
Evaporator second outlet valve 11, keeps defrosting circulation loop open-minded, and the refrigerant after the pressurization heating of compressor 1 understands some point
Flow to the 6th pipeline 27, successively by first evaporator the second imported valve 12, the first evaporator 3 import, need defrost
First evaporator 3, the outlet of the first evaporator 3, the first evaporator second outlet valve 11, the 7th pipeline 28 and the second expansion valve
After 8, into second pipe 23, it can also be directly entered condenser 2, absorbed heat again by the entrance of the first expansion valve 9 later
Compressor is returned to after evaporator heat absorption；
Referring to fig. 2, double-head arrow indicates that heating circulation, single arrow indicate refrigeration cycle.
As shown in figure 3, double-head arrow indicates refrigeration cycle, in refrigeration work, the second valve 7, the first evaporator the are opened
Two imported valves 12, the first evaporator second outlet valve 11, second evaporator the second imported valve 16, the second evaporator second
Outlet valve 15, the second imported valve of third evaporator 20, third evaporator second outlet valve 19 and the second expansion valve 8 are beaten
It opens, remaining valve is closed, and outlet and sixth pipeline 27 of the refrigerant successively through compressor 1 divide three tunnels most from the 6th pipeline 27 respectively
The 7th pipeline 28 is imported eventually；
The first via: from the 6th pipeline 27 sequentially enter first evaporator the second imported valve 12, the first evaporator 3 into
Mouth, the first evaporator 3, the outlet of the first evaporator 3 and the first evaporator second outlet valve 11 and the 7th pipeline 28；
Second tunnel: from the 6th pipeline 27 sequentially enter second evaporator the second imported valve 16, the second evaporator 4 into
Mouth, the second evaporator 4, the outlet of the second evaporator 4 and the second evaporator second outlet valve 15 and the 7th pipeline 28；
Third road: from the 6th pipeline 27 sequentially enter the second imported valve of third evaporator 20, third evaporator 5 into
Mouth, third evaporator 5, the outlet of third evaporator 5 and third evaporator second outlet valve 19 and the 7th pipeline 28；
Refrigerant sequentially enters the second expansion valve 8, the outlet of condenser 2, condenser 2 and condenser 2 through the 7th pipeline 28 again
Import, subsequently into after first pipe 22 enter the second valve 7, second can also be directly entered by the import of condenser 2
Valve 7 sequentially enters the import of the 5th pipeline 26, the 4th pipeline 23, gas-liquid separator 31 and compressor 1 after the second valve 7
Enter compressor cycle afterwards, cooling capacity is externally provided.
The utility model can be right under normal heating condition using more than two independent evaporator unit parallel operations
Wherein one or more evaporator unit income defrosts, the defrost of the utility model do not need the switching of four-way valve, it is ensured that
Heat pump system when defrost continual heat supply, realize heating while to need defrost evaporator carry out defrost, be
Road operational mode under the overall leadership without switching, be all in entire Heating Season it is identical, system operation it is more stable.
Embodiment described above, only one kind of the utility model more preferably specific embodiment, the skill of this field
The usual variations and alternatives that art personnel carry out within the scope of technical solutions of the utility model should all be included in the guarantor of the utility model
It protects in range.
Claims (6)
1. a kind of multi-evaporator heat pump from defrost continuous heat supply, which is characterized in that including evaporator, compressor, condenser,
One expansion valve and the second expansion valve；
The evaporator is two or more, and more than two evaporators are to be connected in parallel；
The outlet of the compressor connects the first valve, and first valve connects the import of condenser, institute by first pipe
State the outlet of condenser and the first expansion valve connected by second pipe, first expansion valve by third pipeline connect two with
Upper the first imported valve of evaporator, each first imported valve of evaporator connect the import of corresponding evaporator, the steaming
The outlet for sending out device connects corresponding evaporator first outlet valve, and more than two evaporator first outlet valves pass through the 4th
Pipeline, gas-liquid separator connect the import of the compressor；
4th pipeline connects the 5th pipeline, and the 5th pipeline connects the import of condenser by the second valve；
The outlet of the compressor connects the 6th pipeline, and the 6th pipeline connects the second imported valve of more than two evaporators,
Each the second imported valve of the evaporator connects the import of corresponding evaporator, and the outlet connection of the evaporator is corresponding to steam
Device second outlet valve is sent out, more than two evaporator second outlet valves connect the second expansion valve, institute by the 7th pipeline
State the outlet of the second expansion valve connection condenser.
2. the multi-evaporator heat pump according to claim 1 from defrost continuous heat supply, which is characterized in that
At least one evaporator is equipped with an inlet pipeline and an outlet conduit；
At least one described inlet pipeline is connected with import tee tube, and a nozzle of the import tee tube passes through the first evaporation
The first imported valve of device connects the third pipeline, another nozzle connects described the by first the second imported valve of evaporator
Six pipelines；
At least one described outlet conduit is connected with outlet tee tube, and a nozzle of the outlet tee tube passes through the first evaporation
Device first outlet valve connects the 4th pipeline, another nozzle is connected by another the first evaporator second outlet valve
7th pipeline.
3. the multi-evaporator heat pump according to claim 2 from defrost continuous heat supply, which is characterized in that each evaporation
It is equipped with an inlet pipeline and one outlet pipeline on device, is respectively connected with tee tube on the inlet pipeline and outlet conduit,
Two nozzles of the tee tube are connected separately with valve.
4. the multi-evaporator heat pump according to claim 3 from defrost continuous heat supply, which is characterized in that the 5th pipeline
The first pipe is connected by the second valve.
5. the multi-evaporator heat pump according to claim 4 from defrost continuous heat supply, which is characterized in that second expansion
Valve connects the second pipe.
6. the multi-evaporator heat pump according to claim 1-4 from defrost continuous heat supply, which is characterized in that described
First valve, the second valve, first the first imported valve of evaporator, first the second imported valve of evaporator, the first evaporator
One outlet valve and the first evaporator second outlet valve are solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820611544.5U CN208254001U (en) | 2018-04-26 | 2018-04-26 | A kind of multi-evaporator heat pump from defrost continuous heat supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820611544.5U CN208254001U (en) | 2018-04-26 | 2018-04-26 | A kind of multi-evaporator heat pump from defrost continuous heat supply |
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| CN208254001U true CN208254001U (en) | 2018-12-18 |
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| CN201820611544.5U Active CN208254001U (en) | 2018-04-26 | 2018-04-26 | A kind of multi-evaporator heat pump from defrost continuous heat supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411048A (en) * | 2018-04-26 | 2019-11-05 | 北京四季通能源科技有限公司 | A kind of multi-evaporator heat pump and its control method from defrost continuous heat supply |
-
2018
- 2018-04-26 CN CN201820611544.5U patent/CN208254001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411048A (en) * | 2018-04-26 | 2019-11-05 | 北京四季通能源科技有限公司 | A kind of multi-evaporator heat pump and its control method from defrost continuous heat supply |
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