CN111457613A - Double-cold-source air suspension centrifugal heat pump device - Google Patents
Double-cold-source air suspension centrifugal heat pump device Download PDFInfo
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- CN111457613A CN111457613A CN202010423968.0A CN202010423968A CN111457613A CN 111457613 A CN111457613 A CN 111457613A CN 202010423968 A CN202010423968 A CN 202010423968A CN 111457613 A CN111457613 A CN 111457613A
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- way valve
- air
- heat exchanger
- suspension centrifugal
- pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
Abstract
The invention discloses a double-cold-source air suspension centrifugal heat pump device, which comprises an air suspension centrifugal compressor, a three-way valve, a four-way valve, an air source heat exchanger, a liquid reservoir, an economizer, a liquid pump, an air tank, a condenser and a dual-purpose heat exchanger, wherein the air suspension centrifugal compressor is provided with two stages of impellers, the two stages of impellers are respectively a first-stage impeller and a second-stage impeller, and a motor and a bearing are arranged between the first-stage impeller and the second-stage impeller; the second-stage impeller of the air suspension centrifugal compressor is connected with the inlet of the three-way valve; a first outlet of the three-way valve is connected with an inlet of the condenser; and a second outlet of the three-way valve is connected with a first port of the four-way valve. According to the double-cold-source air suspension centrifugal heat pump device, cold water and hot water can be obtained from air at the same time, and the balance of the air quantity adjusting system for exhaust distribution is controlled, so that the requirements of a unit for refrigerating and heating at the same time are met, and different temperature loads on a user side are met.
Description
Technical Field
The invention relates to a double-cold-source air suspension centrifugal heat pump device.
Background
The large-scale cold water heat pump devices on the market at present are screw type and centrifugal type products, oil lubrication rotors and bearings are adopted in screw type compressors, oil lubrication bearings are adopted in most of the centrifugal type compressors, and magnetic suspension type bearings are adopted in a small part of the centrifugal type compressors. The traditional compressor-containing system brings many hidden dangers of reliability, such as compressor jamming, motor burnout and the like, and the performance of a unit is reduced and the heat transfer coefficient of a heat exchanger is reduced after oil is brought into the system. Meanwhile, the magnetic suspension type compressor has low reliability and extremely high maintenance cost. The realization forms of the existing large-scale heat pump device are divided into two types: one is to adopt a water system switching mode and adopt a water type heat pump unit; the other type adopts an air cooling type, and the cooling and heating modes are switched through a four-way valve. Since the water heat pump cannot be switched on the fluorine side, it is necessary to realize cooling heat by a complicated water piping system. The air-cooled heat pump can only realize heating and cooling independently, and can only meet a certain functional requirement when performing a heat recovery function.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a double-cold-source air suspension centrifugal heat pump device, cold water and hot water are obtained from air simultaneously, the balance of an air quantity adjusting system for exhaust distribution is controlled, so that the requirements of units for refrigeration and heating at the same time are met, different temperature loads on a user side are ensured, an air suspension centrifugal compressor is used as a lifting power, an oil loop and an oil cooling system are not arranged in the system, the device is simplified, and the stability and the reliability of the system performance are ensured.
The technical scheme for realizing the purpose is as follows: the utility model provides a two cold source gas suspension centrifugal heat pump device, includes gas suspension centrifugal compressor, three-way valve, cross valve, air source heat exchanger, reservoir, economic ware, liquid pump, gas pitcher, condenser and dual-purpose heat exchanger, wherein:
the air suspension centrifugal compressor is provided with two stages of impellers, the two stages of impellers are respectively a first-stage impeller and a second-stage impeller, and a motor and a bearing are arranged between the first-stage impeller and the second-stage impeller;
the second-stage impeller of the air suspension centrifugal compressor is connected with the inlet of the three-way valve;
a first outlet of the three-way valve is connected with an inlet of the condenser;
a second outlet of the three-way valve is connected with a first port of the four-way valve;
the second port of the four-way valve is connected with the air suction port of the first-stage impeller of the air suspension centrifugal compressor;
the third port of the four-way valve is connected with the inlet of the air source heat exchanger;
a fourth port of the four-way valve is connected with a first interface of the dual-purpose heat exchanger;
an outlet of the air source heat exchanger is connected with a first interface of the liquid storage device through a first pipeline;
a second interface of the liquid storage device is connected with an inlet of the economizer through a first throttling device, and an outlet pipeline of the economizer is provided with a second throttling device;
an outlet pipeline of the economizer is connected with a second connector of the dual-purpose heat exchanger through a second pipeline;
the outlet pipeline of the economizer is communicated with the first pipeline through a third pipeline;
a third interface of the dual-purpose heat exchanger is communicated with the first pipeline through a fourth pipeline;
the outlet of the condenser is communicated with the first pipeline through a fifth pipeline;
the economizer is connected with the gas suspension centrifugal compressor;
and the third interface of the liquid storage device, the liquid pump, the gas tank and the motor are sequentially connected.
The double-cold-source air suspension centrifugal heat pump device is characterized in that the air source heat exchanger is a finned tube heat exchanger.
The double-cold-source air suspension centrifugal heat pump device is characterized in that a heating device is arranged in the air tank.
In the above dual-cold-source gas suspension centrifugal heat pump device, the dual-purpose heat exchanger is a flooded or falling film heat exchanger.
The double-cold-source air suspension centrifugal heat pump device is characterized in that the bearing is an air suspension bearing.
The double-cold-source air suspension centrifugal heat pump device is characterized in that the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are respectively provided with a check valve.
In the above dual cold source air suspension centrifugal heat pump device, the check valve on the first pipeline is located between the joint of the first pipeline and the third pipeline and the joint of the first pipeline and the fifth pipeline.
In the above dual-cold-source air-suspension centrifugal heat pump device, an electromagnetic valve is arranged between the connection between the second interface of the liquid reservoir and the first throttling device and the motor.
In the above dual cold source air suspension centrifugal heat pump apparatus, the three-way valve is a three-way regulating valve; the four-way valve is a four-way reversing valve.
According to the double-cold-source air suspension centrifugal heat pump device, cold water and hot water are obtained from air at the same time, the balance of the air quantity adjusting system for exhaust distribution is controlled, so that the requirements of units for refrigeration and heating at the same time are met, different temperature loads on a user side are guaranteed, the air suspension centrifugal compressor is used as lifting power, an oil loop and an oil cooling system are not arranged in the system, the device is simplified, and the stability and the reliability of the system performance are guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a dual cold source air suspension centrifugal heat pump device of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1, a dual-cold-source air-suspension centrifugal heat pump apparatus according to a preferred embodiment of the present invention includes an air-suspension centrifugal compressor 1, a three-way valve 12, a four-way valve 3, an air source heat exchanger 4, a reservoir 6, an economizer 8, a liquid pump 9, an air tank 10, a condenser 13, and a dual-purpose heat exchanger 11.
The air suspension centrifugal compressor 1 is provided with two stages of impellers, the two stages of impellers are respectively a first-stage impeller 101 and a second-stage impeller 102, and a motor and a bearing 2 are arranged between the first-stage impeller 101 and the second-stage impeller 102; the second-stage impeller 102 of the 1-stage air suspension centrifugal compressor is connected with the inlet 12a of the three-way valve 12; a first outlet 12b of the three-way valve 12 is connected with an inlet of the condenser 13; a second outlet 12c of the three-way valve 12 is connected with a first port 3a of the four-way valve 3, and a second port 3b of the four-way valve 3 is connected with a suction port of a first-stage impeller 101 of the air suspension centrifugal compressor 1; a third port 3c of the four-way valve 3 is connected with an inlet of the air source heat exchanger 4; a fourth port 3d of the four-way valve 3 is connected with a first interface 11a of the dual-purpose heat exchanger 11; the outlet of the air source heat exchanger 4 is connected with a first interface 6a of the liquid storage device 6 through a first pipeline 21; the second port 6b of the reservoir 6 is connected with the inlet of the economizer 8 through a first throttling device 71, and the outlet pipeline of the economizer 8 is provided with a second throttling device 72; the outlet pipe of the economizer 8 is connected with the second port 11b of the dual-purpose heat exchanger 11 through a second pipe 22; the outlet duct of the economizer 8 communicates with the first duct 21 through a third duct 23; the third port 11c of the dual-purpose heat exchanger 11 is communicated with the first pipeline 21 through a fourth pipeline 24; the outlet of the condenser 13 communicates with the first pipe 21 through a fifth pipe 25; the economizer 8 is connected with the gas suspension centrifugal compressor 1; the third port 6c of the liquid reservoir 6, the liquid pump 9, the gas tank 10 and the motor are connected in sequence.
The air source heat exchanger 4 is a finned tube heat exchanger. The gas tank 10 is internally provided with a heating device.
The dual-purpose heat exchanger 11 is a flooded type or falling film type heat exchanger. The dual-purpose heat exchanger 11 has three ports for serving as an evaporator during cooling and a condenser during heating.
The bearing 2 is an air suspension bearing.
The first, second, third, fourth and fifth pipes 21, 22, 23, 24 and 25 are provided with check valves 5, respectively. The non-return valve 5 on the first duct 21 is located between the junction e of the first duct 21 and the third duct 23 and the junction f of the first duct 21 and the fifth duct 25.
An electromagnetic valve 15 is arranged between the motor and the joint g of the second port 6b of the liquid reservoir 6 and the first throttling device 71.
The three-way valve 12 is a three-way regulating valve and can regulate the flow of two outlets; the four-way valve 3 is a four-way reversing valve.
The invention relates to a double-cold-source air suspension centrifugal heat pump device, which comprises the following refrigeration implementation scheme: refrigerant gas is compressed by a first-stage impeller 101 of the gas suspension centrifugal compressor 1, mixed with a gaseous refrigerant of the economizer 8, enters a second-stage impeller 102 of the gas suspension centrifugal compressor 1, compressed, enters an inlet 12a of a three-way valve 12, enters a first port 3a of a four-way valve 3 through a second outlet 12 of the three-way valve 12, then enters the air source heat exchanger 4 through the third port 3c of the four-way valve 3, after the refrigerant is cooled into liquid through the air source heat exchanger 4, flows into the reservoir 6 through the first pipe 21, passes through the first throttle 71 and the second throttle 72, the refrigerant enters the dual-purpose heat exchanger 11 through the second pipeline 22 and the second interface 11b of the dual-purpose heat exchanger 11 to be evaporated, and the evaporated refrigerant gas passes through the fourth port 3d of the four-way valve 3 and the second port 3b of the four-way valve 3 in sequence through the first interface 11a of the dual-purpose heat exchanger 11 and returns to the suction port of the first-stage impeller 101 of the air suspension centrifugal compressor 1 to form a refrigeration cycle.
The heat pump embodiment is: refrigerant gas is compressed by a first-stage impeller 101 of the gas suspension centrifugal compressor 1, mixed with gaseous refrigerant of the economizer 8, enters a second-stage impeller 102 of the gas suspension centrifugal compressor 1, is compressed, enters an inlet 12a of a three-way valve 12, enters a first port 3a of a four-way valve 3 through a second outlet 12 of the three-way valve 12, enters a first port of a dual-purpose heat exchanger 11 through a fourth port of the four-way valve 3, is cooled into liquid by the dual-purpose heat exchanger 11, sequentially flows into a liquid storage device 6 through a third port 11c, a fourth pipeline 24 and a first pipeline 21 of the dual-purpose heat exchanger 11, sequentially flows into the air source heat exchanger 4 from an outlet of the air source heat exchanger 4 through a first throttling device 71, the economizer 8, a second throttling device 72, a third pipeline 23 and a first pipeline 21, and is evaporated, and the evaporated refrigerant gas flows through an inlet, an outlet, an inlet, The third port 3c and the second port 3b of the four-way valve 3 return to the suction port of the first-stage impeller 101 of the air-suspending centrifugal compressor 1 to form a refrigeration cycle. The liquid pump 9 extracts the refrigerant from the liquid storage 6, the refrigerant is heated by the gas tank 10, the gaseous refrigerant enters the bearing 2 and the machine of the electric suspension centrifugal compressor 1 to suspend the bearing 2 and support the motor shaft of the motor, an electromagnetic valve 15 is arranged between the connection g of the second interface 6b of the liquid storage 6 and the first throttling device 71 and the motor and used for cooling the motor, and the refrigerant heated by the motor returns to the suction port of the air suspension centrifugal compressor 1 to form circulation.
The embodiment of the refrigeration and heating simultaneously comprises the following steps: refrigerant gas is compressed by a first-stage impeller 101 of the gas suspension centrifugal compressor 1, mixed with gaseous refrigerant of the economizer 8, enters a second-stage impeller 102 of the gas suspension centrifugal compressor 1, is compressed, enters an inlet 12a of a three-way valve 12, enters a condenser 13 through a first outlet 12b of the three-way valve 12 on one way, enters a first port 3a of a four-way valve 3 through a second outlet 12c of the three-way valve 12 on the other way, enters a dual-purpose heat exchanger 11 through a fourth port 3d of the four-way valve 3, is cooled into liquid by the dual-purpose heat exchanger 11, flows into a liquid storage 6 through a third port 11c, a fourth pipeline 24 and a first pipeline 21 of the dual-purpose heat exchanger 11 in sequence, then flows into the air source heat exchanger 4 from an outlet of the air source heat exchanger 4 to be evaporated after passing through the first throttling device 71, the economizer 8, the second throttling device 72, the third pipeline 23 and the, the evaporated refrigerant gas passes through the inlet of the air source heat exchanger 4, the third port 3c and the second port 3b of the four-way valve 3 and returns to the suction port of the first-stage impeller 101 of the air suspension centrifugal compressor 1 to form a refrigeration cycle. The liquid pump 9 extracts the refrigerant from the liquid storage 6, the refrigerant is heated by the gas tank 10, the gaseous refrigerant enters the motor and the bearing 2 to suspend the bearing and is used for supporting a motor shaft, an electromagnetic valve 15 is arranged between the connection part g of the second interface 6b of the liquid storage 6 and the first throttling device 71 and the motor and is used for cooling the motor, and the refrigerant heated by the motor returns to a suction port of the gas suspension centrifugal compressor 1 to form circulation.
The double-cold-source air suspension centrifugal heat pump device can realize the functions of refrigeration, heating, simultaneous refrigeration and heating and the like by utilizing the air source, reduces the switching of the user side, ensures the stability and reliability of the water system of the user side, has higher comprehensive efficiency, and is multifunctional and efficient equipment. The adopted gas suspension centrifugal compressor reduces an oil system, has stable and reliable gas suspension, higher pressure ratio and higher efficiency, and is environment-friendly new energy heat pump equipment.
In conclusion, the double-cold-source air suspension centrifugal heat pump device can obtain cold water and hot water from air at the same time, and guarantees the requirements of units for refrigeration and heating at the same time and different temperature loads at a user side by controlling the balance of the air quantity adjusting system for exhaust distribution.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a two cold source gas suspension centrifugal heat pump device, its characterized in that, includes gas suspension centrifugal compressor, three-way valve, cross valve, air source heat exchanger, reservoir, economic ware, liquid pump, gas pitcher, condenser and dual-purpose heat exchanger, wherein:
the air suspension centrifugal compressor is provided with two stages of impellers, the two stages of impellers are respectively a first-stage impeller and a second-stage impeller, and a motor and a bearing are arranged between the first-stage impeller and the second-stage impeller;
the second-stage impeller of the air suspension centrifugal compressor is connected with the inlet of the three-way valve;
a first outlet of the three-way valve is connected with an inlet of the condenser;
a second outlet of the three-way valve is connected with a first port of the four-way valve;
the second port of the four-way valve is connected with the air suction port of the first-stage impeller of the air suspension centrifugal compressor;
the third port of the four-way valve is connected with the inlet of the air source heat exchanger;
a fourth port of the four-way valve is connected with a first interface of the dual-purpose heat exchanger;
an outlet of the air source heat exchanger is connected with a first interface of the liquid storage device through a first pipeline;
a second interface of the liquid storage device is connected with an inlet of the economizer through a first throttling device, and an outlet pipeline of the economizer is provided with a second throttling device;
an outlet pipeline of the economizer is connected with a second connector of the dual-purpose heat exchanger through a second pipeline;
the outlet pipeline of the economizer is communicated with the first pipeline through a third pipeline;
a third interface of the dual-purpose heat exchanger is communicated with the first pipeline through a fourth pipeline;
the outlet of the condenser is communicated with the first pipeline through a fifth pipeline;
the economizer is connected with the gas suspension centrifugal compressor;
and the third interface of the liquid storage device, the liquid pump, the gas tank and the motor are sequentially connected.
2. The dual cold source air-suspending centrifugal heat pump apparatus of claim 1, wherein the air source heat exchanger is a finned tube heat exchanger.
3. The dual cold source gas-suspension centrifugal heat pump apparatus of claim 1, wherein a heating device is provided inside said gas tank.
4. The dual cold source gas-suspension centrifugal heat pump apparatus of claim 1, wherein the dual-purpose heat exchanger is a flooded or falling film heat exchanger.
5. The dual cold source air-suspending centrifugal heat pump device of claim 1, wherein the bearings are air-suspending bearings.
6. The dual cold source gas suspension centrifugal heat pump device of claim 1, wherein the first, second, third, fourth and fifth pipes are respectively provided with a check valve.
7. The dual cold source gas-suspension centrifugal heat pump device of claim 6, wherein the check valve on the first conduit is located between the junction of the first conduit and the third conduit and the junction of the first conduit and the fifth conduit.
8. The dual cold source air-suspending centrifugal heat pump device as claimed in claim 1, wherein a solenoid valve is provided between the connection of the second port of the accumulator and the first throttling device and the motor.
9. The dual cold source gas-suspension centrifugal heat pump apparatus of claim 1, wherein said three-way valve is a three-way regulating valve; the four-way valve is a four-way reversing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010423968.0A CN111457613A (en) | 2020-05-19 | 2020-05-19 | Double-cold-source air suspension centrifugal heat pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010423968.0A CN111457613A (en) | 2020-05-19 | 2020-05-19 | Double-cold-source air suspension centrifugal heat pump device |
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| Publication Number | Publication Date |
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| CN111457613A true CN111457613A (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010423968.0A Pending CN111457613A (en) | 2020-05-19 | 2020-05-19 | Double-cold-source air suspension centrifugal heat pump device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198921A (en) * | 2021-11-22 | 2022-03-18 | 青岛海尔空调电子有限公司 | Method and device for controlling refrigerant circulation system and refrigerant circulation system |
| CN115717741A (en) * | 2022-11-16 | 2023-02-28 | 势加透博洁净动力如皋有限公司 | Multi-split central air conditioning system |
-
2020
- 2020-05-19 CN CN202010423968.0A patent/CN111457613A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198921A (en) * | 2021-11-22 | 2022-03-18 | 青岛海尔空调电子有限公司 | Method and device for controlling refrigerant circulation system and refrigerant circulation system |
| CN115717741A (en) * | 2022-11-16 | 2023-02-28 | 势加透博洁净动力如皋有限公司 | Multi-split central air conditioning system |
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