CN205425525U - Air source carbon dioxide heat pump system of oil content is pressed to height - Google Patents
Air source carbon dioxide heat pump system of oil content is pressed to height Download PDFInfo
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- CN205425525U CN205425525U CN201620253213.XU CN201620253213U CN205425525U CN 205425525 U CN205425525 U CN 205425525U CN 201620253213 U CN201620253213 U CN 201620253213U CN 205425525 U CN205425525 U CN 205425525U
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- carbon dioxide
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Abstract
The utility model discloses an air source carbon dioxide heat pump system of oil content is pressed to height belongs to heat pump system, the mobile variation of oil return when moving under traditional air source carbon dioxide heat pump system low temperature of taking vapour and liquid separator and cause the scarce oil of compressor, the utility model discloses a be connected with between compressor and air cooler be arranged in the carbon dioxide cycle pipeline be used for carry out the high -pressure oil content retrieved to the lubricating oil that compressor carried, there is the lubricating oil that is used for storing the recovery of high -pressure oil content through the tube coupling between the oil inlet of oil -out and the compressor of high pressure oil content and to the reservoir of compressor input lubricating oil, thereby the oil return problem that exists has been solved when moving under traditional air source carbon dioxide heat pump system low temperature of taking vapour and liquid separator, it is safer to make the operation that the unit can be under low temperature, reliabl, it is high -efficient.
Description
Technical field
This utility model belongs to heat pump, the air source carbon dioxide heat pump system that a kind of band hydraulic oil divides.
Background technology
The destruction of ozone layer and climate warming are the main Environmental Problems that the whole world is faced at present.CFC and the HCFC class cold-producing medium widely used due to industries such as refrigeration, air-conditioning, heat pumps has damaging the ozone layer and causes the problems such as greenhouse effect, raising plus people's living standard, the demand of the systems such as refrigeration, air-conditioning, heat pump is continuously increased by various countries, and the replacement of cold-producing medium becomes the problem that the whole world is paid close attention to.
Carbon dioxide, as a kind of natural refrigerant, is paid attention to by domestic and international researcher because it has good environmental performance (do not have destruction to ozone layer, and greenhouse effect is little).In addition, when carbon dioxide heat pump system runs under Trans-critical cycle state, temperature glide in carbon dioxide exothermic process can preferably mate with temperature-variable heat source, reduce heat transfer temperature difference, and high exhaust temperature and temperature glide that therefore its trans critical cycle is had are especially suitable for for carrying out water temp. heating.
When the air source carbon dioxide heat pump system of traditional band gas-liquid separator runs at low temperatures, owing to carbon dioxide lubricating oil viscosity increases, mobility is deteriorated, and causes the oil starvation of compressor in lubricating oil can accumulate in gas-liquid separator, cause startup to lose oil, reduce lubricant effect.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition is that when running under the air source carbon dioxide heat pump system low temperature overcoming traditional band gas-liquid separator, oil return mobility is deteriorated and causes the defect of the oil starvation of compressor, the air source carbon dioxide heat pump system providing a kind of band hydraulic oil to divide, makes unit operation at low temperatures safer, reliable, efficient.
nullFor reaching above-mentioned purpose，The air source carbon dioxide heat pump system that band hydraulic oil of the present utility model divides，It is connected to the compressor in carbon dioxide recycle pipeline including the priority that flows to according to carbon dioxide、Air cooler、Throttling arrangement、Vaporizer、Gas-liquid separator，Described compressor has carbon dioxide inlet、Oil-in，Described air cooler has heat exchange water inlet、Heat exchange outlet，Described vaporizer has heat exchange air inlet、Heat exchange air outlet，Described gas-liquid separator has carbon dioxide outlet、Oil-out，The carbon dioxide outlet of described gas-liquid separator connects the carbon dioxide inlet of described compressor，The oil-out of described gas-liquid separator connects the oil-in of described compressor by pipeline，It is characterized in that: be connected between described compressor and air cooler to have and be positioned at dividing for the hydraulic oil that the lubricating oil entrained by compressor air-discharging is reclaimed in described carbon dioxide recycle pipeline，Described hydraulic oil divides and has oil-out，It is connected by pipeline between the oil-out that described hydraulic oil divides with the oil-in of described compressor to have and states the lubricating oil of high pressure Oil recovery and to the reservoir of described compressor input lubricating oil for reservoir.
As optimization technique means: the pipeline between oil-out and reservoir that described hydraulic oil divides is in series with the electromagnetic valve A that the liquid level divided according to described hydraulic oil is opened in good time.
As optimization technique means: described hydraulic oil distribution is equipped with the liquid level sensor detecting described hydraulic oil separatory position.
As optimization technique means: the pipeline between the oil-in of described reservoir and described compressor is in series with the electromagnetic valve B that the liquid level according to described reservoir is opened in good time.
As optimization technique means: the pipeline between oil-out and the oil-in of described compressor of described gas-liquid separator is in series with electromagnetic valve C.
As optimization technique means: this heat pump includes regenerator, the carbon dioxide recycle pipeline between described air cooler and throttling arrangement, the carbon dioxide recycle pipeline between described gas-liquid separator and compressor all introduce described regenerator.
As optimization technique means: described gas-liquid separator has the Balanced interface connecting described carbon dioxide recycle pipeline, the top of described reservoir has cavity, described Balanced interface by pipeline connect described in cavity.
As optimization technique means: the pipeline between described Balanced interface and described cavity is provided with check valve, described check valve is by the direction cut-off of described Balanced interface to described cavity, by the direction conducting of described cavity to described Balanced interface.
As optimization technique means: described throttling arrangement is electric expansion valve, or capillary tube, or electric expansion valve is in parallel with electric expansion valve, or capillary tube is in parallel with capillary tube, or electric expansion valve is in parallel with capillary tube.
This utility model has be positioned in carbon dioxide recycle pipeline to divide for the hydraulic oil reclaiming the lubricating oil entrained by compressor air-discharging by being connected between compressor with air cooler, it is connected by pipeline between oil-out and the oil-in of compressor that hydraulic oil divides and has the lubricating oil for storage high pressure Oil recovery the reservoir to compressor input lubricating oil, thus solve the problem of oil return existed when running under the air source carbon dioxide heat pump system low temperature of traditional band gas-liquid separator, make unit energy operation at low temperatures safer, reliable, efficient.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air source carbon dioxide heat pump system that this utility model band hydraulic oil divides；
Label declaration in figure: 1-compressor；2-air cooler；3-regenerator；4-throttling arrangement；5-vaporizer；6-gas-liquid separator；7-check valve；8-reservoir；9-electromagnetic valve C；10-hydraulic oil divides；11-electromagnetic valve A；12-electromagnetic valve B.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described further.
nullAs shown in Figure 1，The air source carbon dioxide heat pump system that band hydraulic oil of the present utility model divides，Including the compressor 1 flowing to successively be connected in carbon dioxide recycle pipeline according to carbon dioxide、Air cooler 2、Throttling arrangement 4、Vaporizer 5、Gas-liquid separator 6，Compressor 1 has carbon dioxide inlet、Oil-in，Air cooler 2 has heat exchange water inlet、Heat exchange outlet，Vaporizer 5 has heat exchange air inlet、Heat exchange air outlet，Gas-liquid separator 6 has carbon dioxide outlet、Oil-out，The carbon dioxide inlet of the carbon dioxide outlet connection compressor 1 of gas-liquid separator 6，The oil-out of gas-liquid separator 6 connects the oil-in of compressor 1 by pipeline，It is connected between compressor 1 with air cooler 2 and has be positioned in carbon dioxide recycle pipeline to divide 10 for the hydraulic oil that the lubricating oil entrained by compressor air-discharging is reclaimed，Hydraulic oil divides 10 to have oil-out，Hydraulic oil is divided to be connected by pipeline between the oil-out of 10 and the oil-in of compressor 1 to have and divides the lubricating oil of 10 recovery for storage high pressure oil and input the reservoir 8 of lubricating oil to compressor 1.
In this heat pump: throttling arrangement 4 can use the throttle part such as electric expansion valve or capillary tube, can also be by power bigger to adapt to heat pump for they parallel connections, as electric expansion valve is in parallel with electric expansion valve, or capillary tube and capillary paralleling, or electric expansion valve and capillary paralleling.For air cooler pressure and evaporator flow are adjusted.Gas-liquid separator 6 is to ensure that does not has liquid CO 2 to enter in compressor 1, i.e. ensures the normal work of compressor.Reservoir 8 is used for buffering lubricating oil and returns compressor.Hydraulic oil divides 10 for separating the carbon dioxide lubricating oil carried by compressor air-discharging.
Hydraulic oil divides 10 for reclaiming the carbon dioxide lubricating oil entrained by compressor air-discharging, thus solve the problem of oil return existed when running under the air source carbon dioxide heat pump system low temperature of traditional band gas-liquid separator, make unit operation at low temperatures safer, reliable, efficient.
Further, hydraulic oil is in series with the electromagnetic valve A11 that the liquid level divided according to hydraulic oil is opened in good time in dividing the pipeline between the oil-out of 10 and reservoir 8.The liquid level that hydraulic oil divides realizes by putting liquid level sensor for hydraulic oil distribution.
Pipeline between the oil-in of reservoir 8 and compressor 1 is in series with electromagnetic valve B12 that the liquid level according to reservoir 8 opens in good time to control the through of this pipeline or cut-off.The liquid level of reservoir 8 also can be by realizing for reservoir configuration liquid level sensor.
Pipeline between oil-out and the oil-in of compressor 1 of gas-liquid separator 6 is in series with electromagnetic valve C9 and controls oil return to control the through of this pipeline or cut-off.
This heat pump includes regenerator 3, and the carbon dioxide recycle pipeline between carbon dioxide recycle pipeline, gas-liquid separator 6 and compressor 1 between air cooler 2 and throttling arrangement 4 all introduces regenerator 3.Further ensure do not have liquid CO 2 to enter in compressor 1, i.e. ensure the normal work of compressor.
Gas-liquid separator 6 has the Balanced interface of connection carbon dioxide recycle pipeline, and the top of reservoir 8 has cavity, and Balanced interface connects cavity by pipeline.Pipeline between Balanced interface and cavity is provided with check valve 7, and check valve is ended by the direction of Balanced interface to cavity, turned on by the direction of cavity to Balanced interface, the pressure between Balance Air liquid/gas separator 6 and reservoir 8.
When system just starts, electromagnetic valve A11, B12, C9 are turned off.During work, compressor air-discharging is after hydraulic oil divides 10, the lubricating oil overwhelming majority carried in aerofluxus can be by Gravity Separation and be stored in hydraulic oil and divide in 10, the only lubricating oil of denier can trip out hydraulic oil with aerofluxus one and divides 10, and air cooler 2, regenerator 3, throttling arrangement 4, vaporizer 5 is flowed through successively with aerofluxus, finally in gas-liquid separator 6, lubricating oil and aerofluxus carry out secondary separation, and are finally stored in gas-liquid separator 6.Along with continuing of process, hydraulic oil divides in 10 that the liquid level of stored lubricating oil can slowly rise through Gravity Separation, liquid level sensor in hydraulic oil divides monitors after hydraulic oil divides the liquid level in 10 to reach a certain height will opens solenoid valve A11 in time, lubricating oil during hydraulic oil divides 10 subsequently can flow into reservoir 8, now check valve 7 works, and the gases at high pressure in reservoir 8 upper cavity flow into gas-liquid separator 6 with Equalization Reservoir 8 upper cavity and the pressure in gas-liquid separator 6 upper cavity after check valve 7 throttles；And after the liquid level in the liquid level sensor in reservoir 8 monitors reservoir 8 reach a certain height, may turn on electromagnetic valve B12, the lubricating oil in reservoir 8 can flow into compressor 1 through compressor oil return opening；And after the liquid level in the liquid level sensor in gas-liquid separator 6 monitors gas-liquid separator 6 reach a certain height, may turn on electromagnetic valve C9, now the lubricating oil in gas-liquid separator 6 can flow into compressor 1 through compressor oil return opening；After liquid level in hydraulic oil divides 10, reservoir 8 and gas-liquid separator 6 is less than the height each set, can close electromagnetic valve A11, electromagnetic valve B12 and C9 of correspondence respectively, system so circulates.
Above example is only for illustrating technology of the present utility model design and feature, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot all of embodiment be given exhaustive.Every belong to obvious change that the technical solution of the utility model amplified out or the variation row still in protection domain of the present utility model.
Claims (9)
- null1. the air source carbon dioxide heat pump system that a band hydraulic oil divides，Including the compressor (1) flowing to successively be connected in carbon dioxide recycle pipeline according to carbon dioxide、Air cooler (2)、Throttling arrangement (4)、Vaporizer (5)、Gas-liquid separator (6)，Described compressor (1) has carbon dioxide inlet、Oil-in，Described air cooler (2) has heat exchange water inlet、Heat exchange outlet，Described vaporizer (5) has heat exchange air inlet、Heat exchange air outlet，Described gas-liquid separator (6) has carbon dioxide outlet、Oil-out，The carbon dioxide outlet of described gas-liquid separator (6) connects the carbon dioxide inlet of described compressor (1)，The oil-out of described gas-liquid separator (6) connects the oil-in of described compressor (1) by pipeline，It is characterized in that: be connected between described compressor (1) with air cooler (2) and have be positioned in described carbon dioxide recycle pipeline to divide (10) for the hydraulic oil that the lubricating oil entrained by compressor air-discharging is reclaimed，Described hydraulic oil divides (10) to have oil-out，Described hydraulic oil divides to be connected by pipeline between the oil-out of (10) and the oil-in of described compressor (1) to have states the lubricating oil that hydraulic oil divides (10) to reclaim the reservoir (8) inputting lubricating oil to described compressor (1) for reservoir.
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 1 divides, is characterized in that: described hydraulic oil divide the pipeline between the oil-out of (10) and reservoir (8) is in series with the electromagnetic valve A(11 dividing the liquid level of (10) in good time to open according to described hydraulic oil).
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 2 divides, is characterized in that: described hydraulic oil divides (10) to be configured with the described hydraulic oil of detection and divides the liquid level sensor of (10) liquid level.
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 1 divides, is characterized in that: be in series with, in the pipeline between described reservoir (8) and the oil-in of described compressor (1), the electromagnetic valve B(12 that the liquid level according to described reservoir (8) is opened in good time).
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 1 divides, is characterized in that: be in series with electromagnetic valve C(9 in the pipeline between oil-out and the oil-in of described compressor (1) of described gas-liquid separator (6)).
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 1 divides, it is characterized in that: this heat pump includes that regenerator (3), the carbon dioxide recycle pipeline between the carbon dioxide recycle pipeline between described air cooler (2) and throttling arrangement (4), described gas-liquid separator (6) and compressor (1) all introduce described regenerator (3).
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 1 divides, it is characterized in that: described gas-liquid separator (6) has the Balanced interface connecting described carbon dioxide recycle pipeline, the top of described reservoir (8) has cavity, described Balanced interface by pipeline connect described in cavity.
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 7 divides, it is characterized in that: the pipeline between described Balanced interface and described cavity is provided with check valve (7), described check valve is by the direction cut-off of described Balanced interface to described cavity, by the direction conducting of described cavity to described Balanced interface.
- The air source carbon dioxide heat pump system that band hydraulic oil the most according to claim 1 divides, it is characterized in that: described throttling arrangement (4) is electric expansion valve, or capillary tube, or electric expansion valve is in parallel with electric expansion valve, or capillary tube is in parallel with capillary tube, or electric expansion valve is in parallel with capillary tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253213.XU CN205425525U (en) | 2016-03-30 | 2016-03-30 | Air source carbon dioxide heat pump system of oil content is pressed to height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253213.XU CN205425525U (en) | 2016-03-30 | 2016-03-30 | Air source carbon dioxide heat pump system of oil content is pressed to height |
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| CN205425525U true CN205425525U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620253213.XU Withdrawn - After Issue CN205425525U (en) | 2016-03-30 | 2016-03-30 | Air source carbon dioxide heat pump system of oil content is pressed to height |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674626A (en) * | 2016-03-30 | 2016-06-15 | 杭州佳力斯韦姆新能源科技有限公司 | Air source carbon dioxide heat pump system with high-pressure oil |
| CN106839487A (en) * | 2017-03-16 | 2017-06-13 | 华北电力大学（保定） | A kind of critical-cross carbon dioxide air source heat pump system with backwashing function |
| CN112113361A (en) * | 2020-09-09 | 2020-12-22 | 北京航空航天大学 | Isothermal compression efficient refrigerating device and method thereof |
-
2016
- 2016-03-30 CN CN201620253213.XU patent/CN205425525U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674626A (en) * | 2016-03-30 | 2016-06-15 | 杭州佳力斯韦姆新能源科技有限公司 | Air source carbon dioxide heat pump system with high-pressure oil |
| CN106839487A (en) * | 2017-03-16 | 2017-06-13 | 华北电力大学（保定） | A kind of critical-cross carbon dioxide air source heat pump system with backwashing function |
| CN106839487B (en) * | 2017-03-16 | 2019-02-22 | 华北电力大学（保定） | A kind of critical-cross carbon dioxide air source heat pump system with backwashing function |
| CN112113361A (en) * | 2020-09-09 | 2020-12-22 | 北京航空航天大学 | Isothermal compression efficient refrigerating device and method thereof |
| CN112113361B (en) * | 2020-09-09 | 2022-04-15 | 北京航空航天大学 | Isothermal compression efficient refrigerating device and method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20171205 |