CN214665390U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN214665390U CN214665390U CN202023042876.2U CN202023042876U CN214665390U CN 214665390 U CN214665390 U CN 214665390U CN 202023042876 U CN202023042876 U CN 202023042876U CN 214665390 U CN214665390 U CN 214665390U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- pipeline section
- outdoor
- air conditioning
- conditioning system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 29
- 239000003507 refrigerant Substances 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000005057 refrigeration Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 abstract description 17
- 238000009833 condensation Methods 0.000 abstract description 17
- 238000012546 transfer Methods 0.000 description 8
- 239000011550 stock solution Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002026 carminative effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air conditioning system, include: the refrigeration system comprises a compressor, an outdoor heat exchanger, a first throttling device and an indoor heat exchanger, wherein the compressor, the outdoor heat exchanger, the first throttling device and the indoor heat exchanger can form a refrigeration cycle loop; the air conditioning system further comprises a second pipeline section, the second pipeline section is connected in parallel at two ends of the first pipeline section, and a liquid storage device is further arranged on the second pipeline section. According to the utility model discloses guarantee effectively with the higher pressure of condensation side, keep refrigerating system's normal refrigerant circulation, can effectively make still can normally refrigerate under the outdoor ambient temperature of ultra-low temperature, solve the unable normal refrigerated problem under the outdoor ambient condition of ultra-low temperature.
Description
Technical Field
The utility model relates to an air conditioning technology field, concretely relates to air conditioning system.
Background
In the refrigeration and air-conditioning industry, the problem that equipment can still normally refrigerate under heat dissipation and ultralow ambient temperature is always a long-standing problem. Because the equipment heat dissipation air conditioner needs enough heat dissipation capacity no matter in high temperature operating mode or low temperature operating mode to guarantee that the operation equipment can normally, stably operate.
Because the air conditioner among the prior art exists can't normally refrigerate technical problem under the ultra-low temperature outdoor environment temperature still, consequently the utility model discloses research and design an air conditioning system.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art air conditioner and having the defect that can't normally refrigerate under the ultra-low temperature outdoor environment temperature to an air conditioning system is provided.
In order to solve the above problem, the present invention provides an air conditioning system, which includes:
the refrigeration system comprises a compressor, an outdoor heat exchanger, a first throttling device and an indoor heat exchanger, wherein the compressor, the outdoor heat exchanger, the first throttling device and the indoor heat exchanger can form a refrigeration cycle loop;
the air conditioning system further comprises a second pipeline section, the second pipeline section is connected in parallel at two ends of the first pipeline section, and a liquid storage device is further arranged on the second pipeline section.
In some embodiments, a second flow restriction device is disposed on the first pipeline section; and/or the presence of a gas in the gas,
and a third throttling device is arranged on the second pipeline section.
In some embodiments, a pump is also disposed on the second tubing section; and/or the liquid storage device is a liquid storage tank structure.
In some embodiments, a check valve is further disposed on the first pipe segment, the check valve being capable of allowing refrigerant to flow only from the outdoor heat exchanger in a direction toward the first throttling device.
In some embodiments, an outdoor fan is further disposed at the outdoor heat exchanger, and an indoor fan is further disposed at the indoor heat exchanger.
In some embodiments, an electric heating device is further provided at the indoor heat exchanger.
The utility model provides a pair of air conditioning system has following beneficial effect:
1. the utility model discloses a parallelly connected second pipeline section that is provided with on the first pipeline section of air conditioning system that sets up outdoor heat exchanger, and set up the stock solution device on the second pipeline section, can make when outdoor ambient temperature is lower through opening this second pipeline section, make the refrigerant flow into in this stock solution device, mix the heat transfer with the refrigerant in the stock solution device, make the refrigerant produce the flow towards indoor heat exchanger's direction effectively from the second pipeline section, make the refrigerant can get back to the indoor heat exchanger smoothly and evaporate the heat absorption, accomplish refrigeration, effectively avoid, prevent or reduce because outdoor ambient temperature is too low and lead to the fact the condition emergence that the high pressure in the outdoor heat exchanger is too low and cause the compressor to protect shut down excessively, effectively guarantee and the higher pressure of condensation side, keep the normal refrigerant circulation of refrigerating system, can effectively make still can normally refrigerate under the ultra-low temperature ambient temperature, the problem that normal refrigeration cannot be performed under the working condition of an ultralow-temperature outdoor environment is solved; the air conditioning system maintains the system circulating pressure of the condensation side by reducing the heat exchange intensity outside the condenser pipe, thereby keeping the normal refrigerant circulation of the refrigeration system;
2. the utility model discloses an air conditioning system makes the carminative superheated steam refrigerant of compressor get into condenser and liquid storage pot respectively through adjusting second and third throttling arrangement and carries out the heat transfer under low temperature environment, becomes the double-phase state refrigerant of high temperature after the gaseous state refrigerant condensation, has maintained the system circulation pressure of condensation side to keep the normal refrigerant circulation of refrigerating system.
Drawings
Fig. 1 is a schematic diagram of the system structure of the air conditioning system of the present invention.
The reference numerals are represented as:
1. a one-way valve; 2. a pump; 3. a first throttling device; 4. an indoor heat exchanger; 5. an electric heating device; 6. An indoor fan; 7. a compressor; 8. a liquid storage device; 9. a third throttling means; 10. a second throttling device; 11. an outdoor heat exchanger; 12. an outdoor fan; 101. a first pipeline section; 102. a second pipeline section.
Detailed Description
As shown in fig. 1, the utility model provides an air conditioning system, it includes:
the air conditioner comprises a compressor 7, an outdoor heat exchanger 11, a first throttling device 3 and an indoor heat exchanger 4, wherein the compressor 7, the outdoor heat exchanger 11, the first throttling device 3 and the indoor heat exchanger 4 can form a refrigeration cycle loop;
the pipeline section where the outdoor heat exchanger 11 is located is a first pipeline section 101, the air conditioning system further comprises a second pipeline section 102, the second pipeline section 102 is arranged at two ends of the first pipeline section 101 in parallel, and the second pipeline section 102 is further provided with a liquid storage device 8.
The utility model discloses a parallelly connected second pipeline section that is provided with on the first pipeline section of air conditioning system that sets up outdoor heat exchanger, and set up the stock solution device on the second pipeline section, can make when outdoor ambient temperature is lower through opening this second pipeline section, make the refrigerant flow into in this stock solution device, mix the heat transfer with the refrigerant in the stock solution device, make the refrigerant produce the flow towards indoor heat exchanger's direction effectively from the second pipeline section, make the refrigerant can get back to the indoor heat exchanger smoothly and evaporate the heat absorption, accomplish refrigeration, effectively avoid, prevent or reduce because outdoor ambient temperature is too low and lead to the fact the condition emergence that the high pressure in the outdoor heat exchanger is too low and cause the compressor to protect shut down excessively, effectively guarantee and the higher pressure of condensation side, keep the normal refrigerant circulation of refrigerating system, can effectively make still can normally refrigerate under the ultra-low temperature ambient temperature, the problem that normal refrigeration cannot be performed under the working condition of an ultralow-temperature outdoor environment is solved; the utility model discloses an air conditioning system maintains the system circulation pressure of condensation side through reducing condenser outside of tubes heat transfer intensity to keep the normal refrigerant circulation of refrigerating system.
In some embodiments, a second flow restriction device 10 is disposed on the first pipeline section 101; and/or the presence of a gas in the gas,
a third throttling device 9 is arranged on the second line section 102. The utility model discloses an air conditioning system makes the carminative superheated steam refrigerant of compressor get into condenser and liquid storage pot respectively through adjusting second and third throttling arrangement and carries out the heat transfer under low temperature environment, becomes the double-phase state refrigerant of high temperature after the gaseous state refrigerant condensation, has maintained the system circulation pressure of condensation side to keep the normal refrigerant circulation of refrigerating system.
In some embodiments, a pump 2 is also provided on the second tubing section 102; and/or the liquid storage device 8 is a liquid storage tank structure. This is the utility model discloses a further preferred structural style, through the pump that sets up on the second pipeline section, can strengthen the mobile drive power of refrigerant in the second pipeline section, make the pump drive refrigerant in through the second pipeline section flow towards indoor heat exchanger under the operating mode of ultra-low temperature outdoor temperature, can accomplish the circulation flow effect of refrigerant effectively, prevent to lead to the condition emergence that the compressor was crossed the protection because of condensation side high-pressure excessively low, and lead to refrigeration cycle to stop, consequently, can still guarantee that indoor heat exchanger still can evaporate the heat absorption under the ultra-low temperature outdoor ambient temperature, guarantee that refrigeration plant is normal, stable operation.
In some embodiments, a check valve 1 is further disposed on the first pipe section 101, and the check valve 1 can only allow the refrigerant to flow from the outdoor heat exchanger 11 toward the first throttling device 3. The utility model discloses still through the check valve that sets up on first pipeline section, can only allow the refrigerant to flow towards first throttling arrangement's direction from outdoor heat exchanger's direction effectively, prevent that the refrigerant from flowing towards outdoor heat exchanger's direction from first throttling arrangement's direction, effectively avoid returning to the second pipeline section from first pipeline section from the refrigerant that the second pipeline section flowed through again promptly, cause the motion of the invalid work of refrigerant, guarantee the reliable operation of refrigeration cycle.
In some embodiments, an outdoor fan 12 is further disposed at the outdoor heat exchanger 11, and an indoor fan 6 is further disposed at the indoor heat exchanger 4. The utility model discloses still through the outdoor fan that sets up in outdoor heat exchanger department, can strengthen outdoor heat exchanger's heat transfer effect, the same indoor fan that sets up in indoor heat exchanger department can strengthen indoor heat exchanger's heat transfer effect.
In some embodiments, an electric heating device 5 is further provided at the indoor heat exchanger 4. The utility model discloses still through the electric heater unit who sets up in indoor heat exchanger department, can heat the effect to indoor heat exchanger department, effectively prevent the condensation that indoor heat exchanger department takes place and frosting's the condition even, guarantee the effective reliable operation of indoor heat exchanger refrigeration heat transfer.
The utility model also provides a control method as aforementioned any one air conditioning system, it includes:
a detection step for detecting the outdoor environment temperature;
a judging step, namely judging the magnitude relation between the outdoor environment temperature T and a first preset temperature T1 and a second preset temperature T2 respectively, wherein T1> T2;
a control step for controlling said second throttling means 10 and said third throttling means 9 to control the opening or closing of said first line section 101 and to control the opening or closing of said second line section 102.
The utility model controls the second throttling device and the third throttling device to act according to the outdoor environment temperature T, so that the outdoor heat exchanger can be effectively utilized to condense and release heat to normally evaporate and refrigerate the indoor heat exchanger when the outdoor environment temperature is higher, and the first pipeline section where the outdoor heat exchanger is located is opened at the moment; when the outdoor environment temperature is not high or low (at the moment, the outdoor heat exchanger cannot carry out complete and effective condensation heat release, so that the refrigerating and evaporating capacity of the indoor heat exchanger is insufficient), the outdoor heat exchanger and the liquid storage device can be effectively used for carrying out condensation heat release together to enable the indoor heat exchanger to carry out normal evaporation refrigeration, and at the moment, a first pipeline section where the outdoor heat exchanger is located and a second pipeline section where the liquid storage device is located are opened; when the outdoor environment temperature is low (at the moment, the outdoor heat exchanger cannot be condensed to release heat, so that the indoor heat exchanger cannot be refrigerated), the liquid storage device can be effectively condensed to release heat, so that the indoor heat exchanger can be normally evaporated to refrigerate, and at the moment, the second pipeline section where the liquid storage device is located is opened; the refrigeration cycle can be made to operate as usual and reliably.
The utility model provides an ultra-low temperature refrigeration method, which is applied to an ultra-low temperature refrigeration air conditioner and mainly comprises an indoor evaporator, an outdoor compressor and a condenser; the compressor, the condenser and the evaporator form refrigerant circulation; the condenser is connected in parallel with the liquid storage tank from the exhaust pipe of the compressor to the outdoor side; the two electronic expansion valves are respectively arranged in front of the air inlet of the condenser and the air inlet of the liquid storage tank; the low-temperature refrigeration method comprises the following steps:
in some embodiments, the determining step, when it is determined that the outdoor ambient temperature T > T1;
a control step of controlling the second throttling device 10 to open and open the first pipeline section 101; at the same time, the third throttling means 9 is controlled to close, closing the second line section 102.
This is the utility model discloses a preferred control form when outdoor ambient temperature T is higher: when the outdoor temperature is higher than 15 ℃, only the second throttling device 10 is started, and the system circulating pressure of refrigerant circulation at the condensing side is maintained by adjusting the rotating speed of a fan of the outdoor condenser.
In some embodiments, the determining step, when it is determined that the outdoor ambient temperature T2< T1;
a control step of controlling the second throttling device 10 to open and open the first pipeline section 101; at the same time, the third throttling means 9 is controlled to open, opening the second line section 102.
This is the preferred control form of the utility model when outdoor ambient temperature T is not high nor low: when the outdoor temperature is 5-15 ℃, the superheated steam refrigerant exhausted by the compressor enters the condenser and the liquid storage tank respectively for heat exchange by synchronously adjusting the second throttling device 10 and the third throttling device 9, and the gaseous refrigerant is condensed and then becomes a high-temperature two-phase refrigerant.
In some embodiments, the determining step, when it is determined that the outdoor ambient temperature T < T2;
a control step for controlling the second throttling means 10 to close, closing the first pipe section 101; the third throttling means 9 is controlled to open, opening the second line segment 102.
This is the utility model discloses a preferred control form when outdoor ambient temperature T is higher: when the outdoor temperature is lower than 5 deg.c, the second throttle device 10 is closed and the third throttle device 9 is opened, so that the refrigerant enters the liquid storing tank directly and contacts with liquid refrigerant for condensation.
In some embodiments, the first preset temperature T1 is 15 ℃ and the second preset temperature T2 is 5 ℃.
The invention is implemented by dividing into three cases according to different controls
1. When the outdoor environment temperature is more than 15 DEG C
When the outdoor environment temperature is higher than 15 ℃, the external fan is started, the compressor is started, the second throttling device 10 is started, the first throttling device 3 is started, the refrigerant is exhausted and discharged by the compressor at the moment, enters the outdoor heat exchanger 11 through the adjustment of the second throttling device 10, is driven by the outdoor fan 12 to flow for heat dissipation, then passes through the filter, flows through the one-way valve, and enters the indoor heat exchanger 4 under the control and adjustment of the first throttling device 3, and the process mainly comprises the step that the refrigerant enters the compressor after being adjusted by the first throttling device 3 and then is compressed.
2. When the outdoor environment temperature is 5-15 DEG C
When the outdoor environment temperature is 5-15 ℃, the rotating speed of the outdoor fan is reduced, the opening degree of the second throttling device 10 is automatically reduced, the third throttling device 9 is simultaneously started to operate, the gaseous refrigerant compressed by the compressor respectively enters the outdoor heat exchanger and the liquid storage tank through the two opened throttling devices for condensation and heat exchange, the third throttling device 9 is started and simultaneously the pump 2 is started, the refrigerant liquefied by condensation is converged into one path by two paths, enters the evaporator for evaporation and takes away indoor heat after being throttled by the first throttling device 3, and finally is sucked by the compressor, compressed, pressurized and discharged, and the cycle is repeated.
3. When the outdoor environment temperature is less than 5 DEG C
When the outdoor temperature is less than 5 ℃, the external fan stops running, the second throttling device 10 is completely closed immediately, the opening degree of the third throttling device 9 is automatically adjusted to be large, all high-temperature and high-pressure gaseous refrigerants compressed by the compressor directly enter the liquid storage tank through the third throttling device 9 for heat exchange and condensation, the frequency of the electric pump is also automatically adjusted to be the maximum state, the electric pump operates to convey the refrigerants to the front of the first throttling device 3, and the refrigerants enter the evaporator for evaporation and heat exchange after being throttled and then are sucked by the compressor for compression and pressurization and are repeatedly circulated.
Has the advantages that: the outdoor temperature is obtained through the temperature sensor and then is transmitted to the system main control board, the system respectively outputs and adjusts the outdoor fan, the second throttling device 10, the third throttling device 9 and the electric pump according to different temperature feedbacks, a certain energy-saving effect is achieved, when the outdoor temperature is 5-15 ℃, the rotating speed of the outdoor fan is reduced, the electric pump of the liquid storage tank is synchronously started, the energy consumption is effectively reduced, and when the outdoor temperature is less than 5 ℃, the outdoor fan completely stops running, namely, the optimal energy-saving state is achieved; a one-way valve is additionally arranged before the condenser outlet is converged to the outlet of the liquid storage tank, so that the refrigerant discharged from the liquid storage tank when the external fan completely stops running is effectively prevented from flowing back to the condenser, and the heat exchange efficiency is effectively improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An air conditioning system characterized by: the method comprises the following steps:
the air conditioner comprises a compressor (7), an outdoor heat exchanger (11), a first throttling device (3) and an indoor heat exchanger (4), wherein the compressor (7), the outdoor heat exchanger (11), the first throttling device (3) and the indoor heat exchanger (4) can form a refrigeration cycle loop;
the pipeline section where the outdoor heat exchanger (11) is located is a first pipeline section (101), the air conditioning system further comprises a second pipeline section (102), the second pipeline section (102) is arranged at two ends of the first pipeline section (101) in parallel, and a liquid storage device (8) is further arranged on the second pipeline section (102).
2. The air conditioning system of claim 1, wherein:
a second throttling device (10) is arranged on the first pipeline section (101); and/or the presence of a gas in the gas,
and a third throttling device (9) is arranged on the second pipeline section (102).
3. The air conditioning system of claim 1, wherein:
the second pipeline section (102) is also provided with a pump (2); and/or the liquid storage device (8) is a structure of a liquid storage tank.
4. The air conditioning system of claim 1, wherein:
the first pipeline section (101) is also provided with a check valve (1), and the check valve (1) only allows the refrigerant to flow from the outdoor heat exchanger (11) to the direction of the first throttling device (3).
5. The air conditioning system of claim 1, wherein:
an outdoor fan (12) is further arranged at the outdoor heat exchanger (11), and an indoor fan (6) is further arranged at the indoor heat exchanger (4).
6. The air conditioning system of claim 1, wherein:
an electric heating device (5) is further arranged at the indoor heat exchanger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023042876.2U CN214665390U (en) | 2020-12-15 | 2020-12-15 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023042876.2U CN214665390U (en) | 2020-12-15 | 2020-12-15 | Air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214665390U true CN214665390U (en) | 2021-11-09 |
Family
ID=78499932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023042876.2U Active CN214665390U (en) | 2020-12-15 | 2020-12-15 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214665390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665226A (en) * | 2020-12-15 | 2021-04-16 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
-
2020
- 2020-12-15 CN CN202023042876.2U patent/CN214665390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665226A (en) * | 2020-12-15 | 2021-04-16 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN112665226B (en) * | 2020-12-15 | 2024-04-12 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103629873B (en) | The control method of Two-stage Compression air-conditioning system | |
| CN110332635B (en) | Double-stage compression multi-air-supplementing refrigeration heat pump system, control method and air conditioner | |
| CN110848845B (en) | Air supplementing and enthalpy increasing heat pump system, control method and air conditioner | |
| WO2019144421A1 (en) | Heat pump air conditioning system and control method | |
| CN112594871B (en) | Defrosting control method of multifunctional multi-split system with double four-way valves | |
| CN110822592A (en) | Air conditioning system capable of refrigerating at ultra-wide ring temperature | |
| CN112594985B (en) | Oil return control method of multifunctional multi-split system with double four-way valves | |
| CN112594866A (en) | Anti-freezing control system and control method for multi-split hydraulic module | |
| CN112665226B (en) | Air conditioning system and control method thereof | |
| CN214665390U (en) | Air conditioning system | |
| CN214469435U (en) | Multi-split air conditioner system with refrigerant recovery function | |
| CN215412599U (en) | Refrigerating system | |
| CN207963223U (en) | Heat pump air conditioning system | |
| CN110470073B (en) | Carbon dioxide heat pump system | |
| CN110671834A (en) | Heat pump system and defrosting method thereof | |
| CN216204444U (en) | Air conditioner combining air supply compressor and indoor and outdoor auxiliary heat exchanger | |
| JPH10185342A (en) | Heat pump type air conditioner | |
| CN111649504B (en) | Refrigerant active injection heat pump based on solar energy and control method thereof | |
| CN113776142A (en) | Heat pump type air conditioner refrigeration cycle system and control method thereof | |
| CN211953310U (en) | Energy-saving refrigerating system | |
| CN210463646U (en) | Heat pump system | |
| CN211316422U (en) | Air conditioning system capable of refrigerating at ultra-wide ring temperature | |
| CN107504706A (en) | Air conditioner and its fast-refrigerating method | |
| CN113405269A (en) | Refrigerating system and control method thereof | |
| CN108195005B (en) | Three-pipe water source multi-split air conditioner and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |