CN105371515A - Carbon dioxide ground source type geothermal system - Google Patents
Carbon dioxide ground source type geothermal system Download PDFInfo
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- CN105371515A CN105371515A CN201510541680.2A CN201510541680A CN105371515A CN 105371515 A CN105371515 A CN 105371515A CN 201510541680 A CN201510541680 A CN 201510541680A CN 105371515 A CN105371515 A CN 105371515A
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- carbon dioxide
- geothermal system
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- coil pipe
- gas
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- Y02B30/125—
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- Other Air-Conditioning Systems (AREA)
Abstract
The invention aims at providing a carbon dioxide ground source type geothermal system which saves energy and is environment-friendly, simple in structure and suitable for frost weather in north part. The carbon dioxide ground source type geothermal system comprises a carbon dioxide transcritical compressor, an oil separator, a coiler, a heat regenerator, an expansion valve, a U-shaped pipe and a gas-liquid separator; an outlet of the carbon dioxide transcritical compressor is connected with the oil separator, the oil separator is connected with the coiler, and the coiler is connected with the heat regenerator; one side of the heat regenerator is connected with the expansion valve and an inlet of the U-shaped pipe embedded in the ground, and the other side of the heat regenerator is connected with an output opening of the U-shaped pipe embedded in the ground and the gas-liquid separator; and the outlet of the gas-liquid separator is connected with the carbon dioxide transcritical compressor.
Description
Technical field
The invention belongs to cooling/warming system technical field, particularly relate to source, a kind of carbon dioxide ground formula geothermal system.
Background technology
Soil source heat pump utilizes the feature of soil temperature stabilization throughout the year, winter can as the thermal source of heat pump heating using soil, namely supply indoor heating is taken out higher than the heat energy in the ground energy of environment temperature, summer as the low-temperature receiver of air-conditioning, namely can take out soil and is discharged into the end in the soil of environment temperature the heat energy of indoor.Usually need in this system to take water as refrigerating medium for user provides cold and heat, comparatively large to water resources consumption, energy consumption is larger.
Summary of the invention
The defect that the present invention exists to overcome prior art, the object of this invention is to provide source, the carbon dioxide ground formula geothermal system that a kind of energy-conserving and environment-protective, structure are simple, be applicable to northern severe cold weather.
The technology used in the present invention solution is source, a kind of carbon dioxide ground formula geothermal system, comprise CO 2 cross-critical compressor, oil eliminator, coil pipe, regenerator, expansion valve, U-tube and gas-liquid separator, the outlet of described CO 2 cross-critical compressor is connected with oil eliminator, described oil eliminator is connected with coil pipe, described coil pipe is connected with regenerator, described regenerator side is connected with the U-tube import being embedded in underground with expansion valve, described regenerator opposite side is connected with gas-liquid separator with the delivery outlet of the U-tube being embedded in underground, described gas-liquid separator outlet is connected with CO 2 cross-critical compressor.
Described coil pipe is arranged on below the ground surface in room.
The oil-out of described oil eliminator is connected with CO 2 cross-critical compressor with electronics oil balancer by oil strainer, is also provided with service valve between described oil eliminator and CO 2 cross-critical compressor.
The input of described coil pipe is provided with magnetic valve.
This system can be widely used in the community, villa, hotel, hotel, office building etc. of heating, especially in the northern territory that land resource is abundant, it can reach the object of energy-saving and emission-reduction and saving operating cost simultaneously by not only reaching good heating effect, also the problem can not started shooting at low ambient temperatures for air source heat pump, provides good solution
Compared with prior art, the beneficial effect that the present invention has is:
1: carbon dioxide, as cold-producing medium, is the excellent green working medium of a kind of environmental-protecting performance, can reduces greenhouse effects and ozone layer degradation; Its COP value is greater than 4.0, and operating cost is very low, carbon dioxide has excellent heat-conductive characteristic.So using the cycle fluid of carbon dioxide as thermal power plant unit, it will have remarkable heating capacity.
2: adopt the mode of underground heat not only can save careat and space, indoor heating homogeneous temperature can also be made.
3: whole cold is brought into underground by the mode of underground buried tube by this system, even if make its north in severe cold can be applied equally.
4: whole system structure is simple, makes its unit floor space little, save machine room space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure:
1, gas-liquid separator, 2, CO 2 cross-critical compressor, 3, oil eliminator, 4, coil pipe, 5, regenerator, 6, expansion valve, 7, U-tube.
Detailed description of the invention
As shown in Figure 1, source, a kind of carbon dioxide ground formula geothermal system, comprise CO 2 cross-critical compressor, oil eliminator, coil pipe, regenerator, expansion valve, U-tube and gas-liquid separator, the outlet of described CO 2 cross-critical compressor is connected with oil eliminator, described oil eliminator is connected with coil pipe, described coil pipe is connected with regenerator, described regenerator side is connected with the U-tube import being embedded in underground with expansion valve, described regenerator opposite side is connected with gas-liquid separator with the delivery outlet of the U-tube being embedded in underground, described gas-liquid separator outlet is connected with CO 2 cross-critical compressor.Described coil pipe is arranged on below the ground surface in room.Source, carbon dioxide ground formula geothermal system adopts CO 2 cross-critical compressor, carbon dioxide under superheat state is sent into and is embedded in the underground coil pipe needing heat supply room, in room, heat radiation reaches the object allowing room temperature rise, because carbon dioxide condensation in overheat conditions has larger temperature glide, make it have good heating effect, carbon dioxide after being condensed continued to enter after the eruption of overexpansion valve to be unexpectedly embedded in the U-tube of underground through regenerator, get back to after sweat cooling overheated in regenerator after get back to CO 2 cross-critical compressor input, complete whole circulation.
The oil-out of described oil eliminator is connected with CO 2 cross-critical compressor with electronics oil balancer by oil strainer, is also provided with service valve between described oil eliminator and CO 2 cross-critical compressor.The input of described coil pipe is provided with magnetic valve.
The selection of described magnetic valve and be set to the state of the art, those skilled in the art can carry out selecting and arranging according to prior art
This system can have good heating effect, mainly utilize carbon dioxide as having good macroscopic property during cold-producing medium, especially when whole kind of refrigeration cycle be carry out under the condition at Trans-critical cycle time, the delivery temperature of carbon dioxide is higher, larger temperature glide can be there is after reducing temperature after it enters condenser, release a large amount of heats.In addition the mode of underground buried tube is utilized to bring cold into underground, even if make still can take this heat-supplying mode in northern frore area.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. source, carbon dioxide ground formula geothermal system, it is characterized in that: comprise CO 2 cross-critical compressor, oil eliminator, coil pipe, regenerator, expansion valve, U-tube and gas-liquid separator, the outlet of described CO 2 cross-critical compressor is connected with oil eliminator, described oil eliminator is connected with coil pipe, described coil pipe is connected with regenerator, described regenerator side is connected with the U-tube import being embedded in underground with expansion valve, described regenerator opposite side is connected with gas-liquid separator with the delivery outlet of the U-tube being embedded in underground, described gas-liquid separator outlet is connected with CO 2 cross-critical compressor.
2. source, carbon dioxide ground according to claim 1 formula geothermal system, is characterized in that: described coil pipe is arranged on below the ground surface in room.
3. source, carbon dioxide ground according to claim 1 formula geothermal system, it is characterized in that: the oil-out of described oil eliminator is connected with CO 2 cross-critical compressor with electronics oil balancer by oil strainer, is also provided with service valve between described oil eliminator and CO 2 cross-critical compressor.
4. source, carbon dioxide ground according to claim 1 and 2 formula geothermal system, is characterized in that: the input of described coil pipe is provided with motor-driven valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510541680.2A CN105371515A (en) | 2015-08-31 | 2015-08-31 | Carbon dioxide ground source type geothermal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510541680.2A CN105371515A (en) | 2015-08-31 | 2015-08-31 | Carbon dioxide ground source type geothermal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371515A true CN105371515A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510541680.2A Pending CN105371515A (en) | 2015-08-31 | 2015-08-31 | Carbon dioxide ground source type geothermal system |
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| CN (1) | CN105371515A (en) |
Cited By (1)
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576283A (en) * | 2009-06-11 | 2009-11-11 | 上海理工大学 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
| CN101893276A (en) * | 2010-04-20 | 2010-11-24 | 上海理工大学 | System for supplying heat to floor radiation heating system by transcritical carbon dioxide heat pump system |
| CN201779768U (en) * | 2010-09-03 | 2011-03-30 | 甘肃一德节能环保有限公司 | CO2 heat pump lower temperature heating system |
| CN202868983U (en) * | 2012-10-18 | 2013-04-10 | 江苏苏净集团有限公司 | Energy-saving type multi-source carbon dioxide hot pump hot water unit |
| CN103471195A (en) * | 2013-10-08 | 2013-12-25 | 天津凯德实业有限公司 | Heat pump air conditioning device and control method thereof |
| CN104534734A (en) * | 2014-12-04 | 2015-04-22 | 上海交通大学 | Multi-source coupled carbon dioxide ground source heat pump system |
| CN205037617U (en) * | 2015-08-31 | 2016-02-17 | 黑龙江爱科德科技有限公司 | Carbon dioxide ground source formula geothermal system |
-
2015
- 2015-08-31 CN CN201510541680.2A patent/CN105371515A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576283A (en) * | 2009-06-11 | 2009-11-11 | 上海理工大学 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
| CN101893276A (en) * | 2010-04-20 | 2010-11-24 | 上海理工大学 | System for supplying heat to floor radiation heating system by transcritical carbon dioxide heat pump system |
| CN201779768U (en) * | 2010-09-03 | 2011-03-30 | 甘肃一德节能环保有限公司 | CO2 heat pump lower temperature heating system |
| CN202868983U (en) * | 2012-10-18 | 2013-04-10 | 江苏苏净集团有限公司 | Energy-saving type multi-source carbon dioxide hot pump hot water unit |
| CN103471195A (en) * | 2013-10-08 | 2013-12-25 | 天津凯德实业有限公司 | Heat pump air conditioning device and control method thereof |
| CN104534734A (en) * | 2014-12-04 | 2015-04-22 | 上海交通大学 | Multi-source coupled carbon dioxide ground source heat pump system |
| CN205037617U (en) * | 2015-08-31 | 2016-02-17 | 黑龙江爱科德科技有限公司 | Carbon dioxide ground source formula geothermal system |
Cited By (1)
| 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 |
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Application publication date: 20160302 |