CN204880833U - Hydraulic filling formula ground source heat pump set - Google Patents
Hydraulic filling formula ground source heat pump set Download PDFInfo
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- CN204880833U CN204880833U CN201520602740.2U CN201520602740U CN204880833U CN 204880833 U CN204880833 U CN 204880833U CN 201520602740 U CN201520602740 U CN 201520602740U CN 204880833 U CN204880833 U CN 204880833U
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Abstract
The utility model provides a hydraulic filling formula ground source heat pump set, the first heat transfer media channel of the economic ware of condenser exit linkage entry, this passageway exit linkage choke valve entry, choke valve exit linkage flooded evaporator entry, the flooded evaporator exit linkage breathing pipe other end, economic ware second heat transfer media channel entry is connected to the last oil return opening that still is equipped with of flooded evaporator, oil return opening, the first entry of this passageway exit linkage ejector, and the the second entrance of ejector connects on the blast pipe, and the ejector exit linkage is on the breathing pipe, and oil content oil exit linkage is on the breathing pipe. Through setting up economic ware, the messenger follows condenser refrigerant liquid that comes out and the liquid mixture oily and refrigerant who exports out from evaporimeter oil and carries out the heat transfer, has increased the super -cooled rate of refrigerant, unit refrigerating output and energy efficiency ratio increase, not had refrigerant liquid in the oil return of compressor, having improved the exhaust super -heated rate, made the oil content divide oily effect better, the content that gets into the condenser petroleum company of the people's republic of china also reduces thereupon.
Description
Technical field
The utility model belongs to technical field of central air, particularly relates to a kind of full-liquid type earth source heat pump unit.
Background technology
Full-liquid type earth source heat pump unit belongs to vapour compression-type air conditioner group, due to have single unit refrigeration (heat) amount greatly, unit eer high, application between floors is at present more.The flooded evaporator that full-liquid type earth source heat pump unit uses, needs the auxiliary of injector the oily injection in evaporimeter could be returned compressor usually.But in evaporimeter, oil and refrigerant liquid merge, what injection returned compressor only has a small amount of oil, and major part is refrigerant liquid, and these refrigerant liquids are got back to compressor and reduced directly causing the discharge superheat of compressor, reduce the efficiency of oil eliminator, cause more oil to enter into condenser, and then enter into evaporimeter, oil in evaporimeter is increased, heat exchange efficiency declines, and serious causes compressor oil starvation.
Current, control injector injection volume and mainly contain two kinds of methods, a kind of is the aperture regulating injection return valve, and another kind is the mode adopting interval injection.But the problem that these two kinds of modes all cannot be avoided refrigerant liquid in evaporimeter to get back to compressor causing the compressor air-discharging degree of superheat to reduce.
Summary of the invention
The utility model proposes a kind of full-liquid type earth source heat pump unit, the refrigerant liquid injection that can solve in prior art evaporimeter enters compressor, causes the compressor air-discharging degree of superheat to reduce, the problem that oil content effect declines.
In order to reach above-mentioned technical purpose, the technical solution of the utility model is: a kind of full-liquid type earth source heat pump unit, comprise compressor, oil content, condenser, choke valve, flooded evaporator and injector, also include economizer, described economizer comprises the first heat exchanging medium passage and the second heat exchanging medium passage, described first heat exchanging medium passage has entrance and exit, and described second heat exchanging medium passage has entrance and exit; The air entry of described compressor connects one end of air intake duct, the exhaust outlet of described compressor connects the gas access of described oil content by blast pipe, the gas vent of described oil content connects the entrance of described condenser, the outlet of described condenser connects the entrance of described first heat exchanging medium passage, the outlet of described first heat exchanging medium passage connects the entrance of described choke valve, the outlet of described choke valve connects the entrance of described flooded evaporator, and the outlet of described flooded evaporator connects the other end of described air intake duct; Described flooded evaporator is also provided with oil return opening, described oil return opening connects the entrance of described second heat exchanging medium passage, the outlet of described second heat exchanging medium passage connects the first entrance of described injector, second entrance of described injector is connected on described blast pipe, the outlet of described injector is connected on described air intake duct, and the oil export of described oil content is connected on described air intake duct.
Described economizer can select plate type heat exchanger, case tube heat exchanger, double-tube heat exchanger or coaxial heat exchanger.
Compared with prior art, the utility model has the following advantages and good effect: by arranging economizer, make from condenser refrigerant liquid out with carry out heat exchange (being greater than from flooded evaporator refrigerant liquid temperature out from condenser refrigerant liquid temperature out) from flooded evaporator refrigerant liquid mixture out (oil and the mixture of refrigerant liquid do not evaporated completely), make to reduce further from condenser refrigerant liquid temperature out, add the degree of supercooling of cold-producing medium, therefore the refrigerating capacity of unit and Energy Efficiency Ratio increase thereupon; Simultaneously, raise from evaporimeter refrigerant liquid temperature out, become oil and mixture of refrigerant gases, by injector injection, enter compressor, then without refrigerant liquid in the oil return of compressor, improve discharge superheat, make oil content divide oily better effects if, the content entering oil in condenser also reduces thereupon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model full-liquid type earth source heat pump unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in more detail.
With reference to Fig. 1, a kind of full-liquid type earth source heat pump of the present embodiment unit, comprise compressor 10, oil content 20, condenser 30, choke valve 40, flooded evaporator 50 and injector 60, also include economizer 70, economizer 70 comprises the first heat exchanging medium passage and the second heat exchanging medium passage, first heat exchanging medium passage has entrance 71 and outlet the 72, second heat exchanging medium passage has entrance 73 and outlet 74; The air entry 11 of compressor 10 connects one end of air intake duct 12, the exhaust outlet 13 of compressor 10 connects the gas access 21 of oil content 20 by blast pipe 14, the gas vent 22 of oil content 20 connects the entrance 31 of condenser 30, the outlet 32 of condenser 30 connects the entrance 71 of the first heat exchanging medium passage, its outlet 72 connects the entrance of choke valve 40, the outlet of choke valve 40 connects the entrance 51 of flooded evaporator 50, and the outlet 52 of flooded evaporator 50 connects the other end of air intake duct 12; Flooded evaporator 50 is also provided with oil return opening 53, oil return opening 53 connects the entrance 73 of the second heat exchanging medium passage, the outlet 74 of the second heat exchanging medium passage connects the first entrance 61 of injector 60, second entrance 63 of injector 60 is connected on the blast pipe 14 of compressor 10, the outlet 62 of injector 60 is connected on air intake duct 12, and the oil export 23 of oil content 20 is connected on air intake duct 12.
The course of work of a kind of full-liquid type earth source heat pump of the present embodiment unit is: cold-producing medium becomes high temperature and high pressure gas (mixture of gaseous refrigerant and lubricating oil) through the compression of compressor 10, enter the gas access 21 of oil content 20 through blast pipe 14 from its exhaust outlet 11, after carrying out Oil-gas Separation, condenser 30 is discharged and then entered to high temperature liquid refrigerant by gas vent 22, through the effect of condenser 30, cooling condensation, becoming refrigerant liquid through the entrance 71 of economizer 70 enters its first heat exchanging medium passage, then choke valve 40 is entered through exporting 72, low-temperature low-pressure refrigerant liquid is become by choke valve 40 reducing pressure by regulating flow, low-temperature low-pressure refrigerant liquid enters flooded evaporator 50 by the entrance 51 of flooded evaporator 50, act on through evaporimeter 50, become cryogenic gaseous cold-producing medium, then enter the air intake duct 12 of compressor 10 from the outlet 52 of flooded evaporator 50, and then enter in compressor 10 through the air entry 11 of compressor 10, the lubricating oil contained in flooded evaporator 50 inner refrigerant liquid and the refrigerant liquid mixture do not evaporated completely are discharged through oil return opening 53, and enter its second heat exchanging medium passage through the entrance 73 of economizer 70, heat exchange is carried out with the refrigerant liquid of being discharged by condenser 30 in the first heat exchanging medium passage (the refrigerant liquid mixture temperature that the temperature of this refrigerant liquid is discharged higher than the oil return opening 53 from flooded evaporator 50), the refrigerant liquid evacuator body the refrigerant liquid mixture of discharging from the oil return opening 53 of flooded evaporator 50 is made to become gas, namely refrigerant liquid mixture becomes oil and mixture of refrigerant gases, and enter injector 60 by the outlet 74 of the second heat exchanging medium passage, because in the pressure ratio air intake duct 13 of this oil and mixture of refrigerant gases, pressure is low, compressor 10 is entered smoothly for making oil and mixture of refrigerant gases, in the present embodiment, the second entrance 63 of injector 60 is connected on blast pipe 14, in blast pipe 14, gas pressure is higher, the oil out of the oil return opening 53 from evaporimeter 50 and refrigerant gas can be brought into air intake duct 13 by the ejector action of injector 60, and then enter compressor 10.Thus what return compressor 10 from oil return opening 53 injection of flooded evaporator 50 is oil and refrigerant gas, not containing refrigerant liquid, improve discharge superheat, make oil content divide oily better effects if, the content entering oil in condenser also reduces thereupon.
In the present embodiment, economizer 70 can be plate type heat exchanger or case tube heat exchanger or double-tube heat exchanger or coaxial heat exchanger, and the thermal source pattern of geothermal heat pump unit can be underground water type, buried tubular type, also can be source of sewage or source of seawater.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (2)
1. a full-liquid type earth source heat pump unit, comprise compressor, oil content, condenser, choke valve, flooded evaporator and injector, it is characterized in that: also include economizer, described economizer comprises the first heat exchanging medium passage and the second heat exchanging medium passage, described first heat exchanging medium passage has entrance and exit, and described second heat exchanging medium passage has entrance and exit; The air entry of described compressor connects one end of air intake duct, the exhaust outlet of described compressor connects the gas access of described oil content by blast pipe, the gas vent of described oil content connects the entrance of described condenser, the outlet of described condenser connects the entrance of described first heat exchanging medium passage, the outlet of described first heat exchanging medium passage connects the entrance of described choke valve, the outlet of described choke valve connects the entrance of described flooded evaporator, and the outlet of described flooded evaporator connects the other end of described air intake duct; Described flooded evaporator is also provided with oil return opening, described oil return opening connects the entrance of described second heat exchanging medium passage, the outlet of described second heat exchanging medium passage connects the first entrance of described injector, second entrance of described injector is connected on described blast pipe, the outlet of described injector is connected on described air intake duct, and the oil export of described oil content is connected on described air intake duct.
2. full-liquid type earth source heat pump unit according to claim 1, is characterized in that: described economizer can select plate type heat exchanger, case tube heat exchanger, double-tube heat exchanger or coaxial heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602740.2U CN204880833U (en) | 2015-08-12 | 2015-08-12 | Hydraulic filling formula ground source heat pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602740.2U CN204880833U (en) | 2015-08-12 | 2015-08-12 | Hydraulic filling formula ground source heat pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204880833U true CN204880833U (en) | 2015-12-16 |
Family
ID=54825197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602740.2U Expired - Fee Related CN204880833U (en) | 2015-08-12 | 2015-08-12 | Hydraulic filling formula ground source heat pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204880833U (en) |
-
2015
- 2015-08-12 CN CN201520602740.2U patent/CN204880833U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic filling formula ground source heat pump set Effective date of registration: 20170728 Granted publication date: 20151216 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Sairuier New Energy Technology Co., Ltd. Registration number: 2017370010043 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180821 Granted publication date: 20151216 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Sairuier New Energy Technology Co., Ltd. Registration number: 2017370010043 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180812 |