CN220250194U - Air conditioning system adopting R290 refrigerant - Google Patents
Air conditioning system adopting R290 refrigerant Download PDFInfo
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- CN220250194U CN220250194U CN202321654239.1U CN202321654239U CN220250194U CN 220250194 U CN220250194 U CN 220250194U CN 202321654239 U CN202321654239 U CN 202321654239U CN 220250194 U CN220250194 U CN 220250194U
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- refrigerant
- heat exchange
- water
- air conditioner
- water side
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 76
- 238000004378 air conditioning Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 238000004146 energy storage Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 6
- 231100000572 poisoning Toxicity 0.000 abstract description 4
- 230000000607 poisoning effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Other Air-Conditioning Systems (AREA)
Abstract
The utility model relates to the field of air conditioners, in particular to an air conditioning system adopting R290 refrigerants, which comprises a refrigerant side heat exchange loop and a water side heat exchange loop; the refrigerant side heat exchange loop comprises a first heat exchanger, a second heat exchanger, a compressor and an expansion valve which are positioned in the air conditioner external unit; the water side heat exchange loop comprises an air conditioner tail end and a water pump which are connected with a second heat exchange pipe in the first heat exchanger through a water side pipeline, and the air conditioner tail end is positioned indoors; an R290 gas-water separation device is arranged on a water side pipeline inside or outside the air conditioner external unit. When the air conditioning system leaks, and the R290 refrigerant leaks into the water side pipeline, the R290 refrigerant can be discharged outdoors through the R290 gas-water separation device arranged on the water side pipeline inside or outside the air conditioner, so that the R290 refrigerant expansion water side pipeline can be avoided, and safety accidents such as explosion and poisoning caused by the refrigerant entering indoors along with water circulation can be avoided.
Description
Technical Field
The utility model relates to the field of air conditioners, in particular to an air conditioning system adopting R290 refrigerant.
Background
At present, in the existing air-cooled heat pump hot and cold water unit, the refrigerant leakage of the water side heat exchanger is the most serious fault, but the prior art cannot completely prevent the leakage of the water side heat exchanger, and once the leakage occurs on the water side, the refrigerant and the water mutually permeate. R290 is a flammable and explosive refrigerant, if the flammable substance (R290) and the specific concentration range (9.5% -21%) are met at the same time, oxygen (air) and an ignition source (more than or equal to 450 ℃) are possibly exploded when the temperature of the refrigerant is 4 conditions, so that the pressure of the system is far greater than the pressure of a waterway when the water-fluorine heat exchanger leaks, the R290 refrigerant leaks into the waterway, the refrigerant enters the room along with the circulation of water, and is discharged into the room through an automatic exhaust valve at the tail end, and personnel can be poisoned; particularly, in winter, the room is an enclosed space, the concentration of R290 easily exceeds the safety standard, and if a fire source exists at the same time, explosion easily occurs.
Disclosure of Invention
In order to solve the above problems, an object of the present utility model is to provide an air conditioning system using R290 refrigerant, in which when the R290 refrigerant leaks into a water side pipeline, the R290 refrigerant can be discharged to the outside of the air conditioner through an R290 gas-water separator provided on the water side pipeline inside the air conditioner, so that the R290 refrigerant can be prevented from expanding the water side pipeline, and the refrigerant can be prevented from entering the room along with water circulation to induce safety accidents such as explosion and poisoning.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an air conditioning system adopting R290 refrigerant comprises a refrigerant side heat exchange loop and a water side heat exchange loop; the refrigerant side heat exchange loop comprises a first heat exchanger, a second heat exchanger, a compressor and an expansion valve which are positioned in the air conditioner external unit, and the first heat exchange tube, the compressor, the second heat exchanger and the expansion valve of the first heat exchanger are connected through refrigerant pipelines; the water side heat exchange loop comprises an air conditioner tail end and a water pump which are connected with a second heat exchange tube in the first heat exchanger through a water side pipeline, wherein the air conditioner tail end is positioned indoors, and heat exchange is realized between a refrigerant in the first heat exchange tube of the first heat exchanger and a refrigerating medium in the second heat exchange tube; the method is characterized in that: an R290 gas-water separation device is arranged on a water side pipeline inside or outside the air conditioner external unit.
The utility model adopts the technical scheme, and the technical scheme relates to an air conditioning system adopting R290 refrigerants, wherein a first heat exchanger, a second heat exchanger, a compressor and an expansion valve in an air conditioner outer machine in the air conditioning system adopting R290 refrigerants are connected to form a refrigerant side heat exchange loop, the refrigerant side heat exchange loop adopts R290 refrigerants, a water side heat exchange loop comprises an air conditioner tail end and a water pump which are connected with a second heat exchange tube in the first heat exchanger through a water side pipeline, and the refrigerants in the first heat exchange tube of the first heat exchanger and the refrigerants in the second heat exchange tube realize heat exchange. When the first heat exchanger leaks to enable the R290 refrigerant to leak into the water side pipeline, the R290 refrigerant can be discharged outdoors through the R290 gas-water separation device arranged on the water side pipeline inside or outside the air conditioner, so that the R290 refrigerant expansion water side pipeline can be avoided, and safety accidents such as explosion and poisoning caused by the refrigerant entering indoors along with water circulation can be avoided.
In a further aspect, the water pump is disposed on an outdoor water side pipeline or a water side pipeline in an external air conditioner. In the scheme, the water pump on the water side pipeline is used for providing power for realizing water side circulation, and can be arranged on the outdoor water side pipeline or integrally arranged on the water side pipeline in the air conditioner external unit.
Preferably, the outdoor water side pipeline or the water side pipeline in the air conditioner outer unit is provided with an energy storage water tank, and the energy storage water tank is arranged in the water side heat exchange loop and can be used for storing the secondary refrigerant (water), so that the use requirement in the water side heat exchange loop is met.
Preferably, the plurality of air-conditioning terminals are connected in parallel to the indoor water side pipeline. The air conditioner tail end can be a fan coil, a floor heating or a radiator, and a plurality of air conditioner tail ends of the same kind or different kinds can be connected in parallel on the indoor water side pipeline.
Preferably, the refrigerant side heat exchange loop further comprises a four-way valve, and two ends of the first heat exchanger, the second heat exchanger and the compressor are connected to the four-way valve.
In a specific embodiment, the R290 gas-water separation device comprises a shell, an exhaust port arranged at the upper end of the shell and a gas collecting net arranged inside the shell; an exhaust cavity communicated with the exhaust port is arranged above the gas collecting net. In the scheme, based on the collection of free bubbles and air clusters in various states in water in the shell by the air collecting net, R290 refrigerant in the water can be guided to the exhaust cavity and then discharged into the atmosphere through the exhaust port.
In a further scheme, the exhaust port of the R290 gas-water separation device is directly arranged at the air outlet of the fan of the second heat exchanger or is arranged at the air outlet of the fan of the second heat exchanger through an exhaust pipeline. The R290 gas discharged by the R290 gas-water separation device in the scheme can be quickly volatilized into the air based on the rotation of the fan, so that the local too high solubility of the R290 gas is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning system employing R290 refrigerant according to the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1, the present embodiment relates to an air conditioning system using R290 refrigerant, including a refrigerant side heat exchange circuit a and a water side heat exchange circuit b; the refrigerant side heat exchange loop a comprises a first heat exchanger 11, a second heat exchanger 12, a compressor 13 and an expansion valve 14 which are positioned in the air conditioner external unit 10, wherein the first heat exchange tube 111, the compressor 13, the second heat exchanger 12 and the expansion valve 14 of the first heat exchanger 11 are connected through a refrigerant pipeline 15; the water side heat exchange loop b comprises an air conditioner tail end 22 and a water pump 13 which are connected with the second heat exchange tube 112 in the first heat exchanger 11 through a water side pipeline 21, the air conditioner tail end 22 is positioned indoors, and the refrigerant in the first heat exchange tube 111 of the first heat exchanger 11 and the secondary refrigerant in the second heat exchange tube 112 realize heat exchange. The above technical solution relates to an air conditioning system using R290 refrigerant, wherein the first heat exchanger 11, the second heat exchanger 12, the compressor 13 and the expansion valve 14 inside the air conditioner outdoor unit 10 in the air conditioning system using R290 refrigerant are connected to form a refrigerant side heat exchange circuit a, in this solution, R290 refrigerant is used in the refrigerant side heat exchange circuit a, the water side heat exchange circuit b includes an air conditioning terminal 22 and a water pump 23 connected to the second heat exchange tube 112 in the first heat exchanger 11 through a water side pipeline 21, and the refrigerant in the first heat exchange tube 1111 of the first heat exchanger 11 exchanges heat with the secondary refrigerant in the second heat exchange tube 112.
In a specific scheme, the refrigerant side heat exchange circuit a further includes a four-way valve 16, and two ends of the first heat exchanger 11, the second heat exchanger 12 and the compressor 13 are connected to the four-way valve 16. Based on the control of the four-way valve 16, the control device can be used for adjusting the trend of the refrigerant in the heating mode and the refrigerating mode.
In the further embodiment shown in the figure, the water pump 23 is provided on the outdoor water side pipe 21 or on the water side pipe 21 in the air conditioner outdoor unit 10. In this embodiment, the water pump 23 on the water side pipeline 21 is used to power the water side circulation, and may be installed on the outdoor water side pipeline 21 or integrally installed on the water side pipeline 21 in the air conditioner outdoor unit 10. In addition, the outdoor water side pipeline 21 or the water side pipeline 21 in the air conditioner external unit 10 is provided with an energy storage water tank 24, wherein the energy storage water tank 24 is installed in the water side heat exchange circuit b, and the energy storage water tank 24 can be used for storing the secondary refrigerant (water), so that the use requirement in the water side heat exchange circuit b is met. The air-conditioning terminals 22 are multiple, and the air-conditioning terminals 22 are connected in parallel to the indoor water side pipeline 21. The air conditioning terminal 22 may be a fan coil, a floor heating or a radiator, and a plurality of similar or different kinds of air conditioning terminals 22 may be connected in parallel to the indoor water side pipeline 21.
On the basis of the scheme, the R290 gas-water separation device 3 is arranged on the water side pipeline 21 inside the air conditioner external unit 10. When the first heat exchanger 11 leaks to enable the R290 refrigerant to leak into the water side pipeline 21, the R290 refrigerant can be discharged outdoors through the R290 gas-water separation device 3 arranged on the water side pipeline 21 inside the air conditioner external unit 10, so that the R290 refrigerant can be prevented from expanding the water side pipeline 21, and safety accidents such as explosion and poisoning caused by the refrigerant entering indoors along with water circulation can be avoided.
In a specific embodiment, the R290 gas-water separation device 3 includes a housing 31, an exhaust port 32 disposed at an upper end of the housing 31, and a gas collecting net 33 disposed inside the housing 31; an exhaust chamber 34 communicated with the exhaust port 32 is arranged above the gas collecting net 33. In this embodiment, the air collecting net 33 rotates in the housing 31, so that the R290 refrigerant in the water can be guided to the exhaust chamber 34 and then discharged to the atmosphere through the exhaust port 32. In a further aspect, the exhaust port 32 of the R290 gas-water separation device 3 is directly or through an exhaust pipeline disposed at the fan air outlet of the second heat exchanger 12. The R290 gas discharged by the R290 gas-water separation device 3 can be quickly volatilized into the air based on the rotation of a fan, so that the explosion caused by the excessively high local solubility of the R290 gas is avoided. In a further scheme, the scheme can be further provided with a monitoring sensor of R290 refrigerant, and when R290 refrigerant leaks, the monitoring sensor can be used for feeding back signals to the central control system for stopping and giving an alarm.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.
Claims (7)
1. An air conditioning system adopting R290 refrigerant comprises a refrigerant side heat exchange loop (a) and a water side heat exchange loop (b); the refrigerant side heat exchange loop (a) comprises a first heat exchanger (11), a second heat exchanger (12), a compressor (13) and an expansion valve (14) which are arranged in the air conditioner external unit (10), wherein the first heat exchange tube (111), the compressor (13), the second heat exchanger (12) and the expansion valve (14) of the first heat exchanger (11) are connected through a refrigerant pipeline (15); the water side heat exchange loop (b) comprises an air conditioner tail end (22) and a water pump (23), wherein the air conditioner tail end (22) and the water pump (23) are connected with a second heat exchange tube (112) in the first heat exchanger (11) through a water side pipeline (21), the air conditioner tail end (22) is positioned indoors, and heat exchange is realized between a refrigerant in the first heat exchange tube (111) of the first heat exchanger (11) and a refrigerating medium in the second heat exchange tube (112); the method is characterized in that: an R290 gas-water separation device (3) is arranged on a water side pipeline (21) inside or outside the air conditioner external unit (10).
2. The air conditioning system using R290 refrigerant according to claim 1, wherein: the water pump (23) is arranged on an outdoor water side pipeline (21) or on the water side pipeline (21) in the air conditioner external unit (10).
3. The air conditioning system using R290 refrigerant according to claim 2, wherein: an energy storage water tank (24) is arranged on the outdoor water side pipeline (21) or the water side pipeline (21) in the air conditioner external unit (10).
4. The air conditioning system using R290 refrigerant according to claim 1, wherein: the air conditioner is characterized in that a plurality of air conditioner terminals (22) are arranged, and the plurality of air conditioner terminals (22) are connected in parallel or in series on the indoor water side pipeline (21).
5. The air conditioning system using R290 refrigerant according to claim 1, wherein: the refrigerant side heat exchange loop (a) further comprises a four-way valve (16), and both ends of the first heat exchanger (11), the second heat exchanger (12) and the compressor (13) are connected to the four-way valve (16).
6. The air conditioning system using R290 refrigerant according to claim 1, wherein: the R290 gas-water separation device (3) comprises a shell (31), an exhaust port (32) arranged at the upper end of the shell (31) and a gas collecting net (33) arranged inside the shell (31); an exhaust cavity (34) communicated with the exhaust port (32) is arranged above the gas collecting net (33).
7. The air conditioning system using R290 refrigerant according to claim 1 or 5, wherein: the exhaust port (32) of the R290 gas-water separation device (3) is directly or through an exhaust pipeline arranged at the air outlet of the fan of the second heat exchanger (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321654239.1U CN220250194U (en) | 2023-06-27 | 2023-06-27 | Air conditioning system adopting R290 refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321654239.1U CN220250194U (en) | 2023-06-27 | 2023-06-27 | Air conditioning system adopting R290 refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220250194U true CN220250194U (en) | 2023-12-26 |
Family
ID=89228427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321654239.1U Active CN220250194U (en) | 2023-06-27 | 2023-06-27 | Air conditioning system adopting R290 refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220250194U (en) |
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2023
- 2023-06-27 CN CN202321654239.1U patent/CN220250194U/en active Active
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