CN105180498A - Floor-type split air conditioner, refrigerant recovering method and device - Google Patents

Floor-type split air conditioner, refrigerant recovering method and device Download PDF

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Publication number
CN105180498A
CN105180498A CN201510559137.5A CN201510559137A CN105180498A CN 105180498 A CN105180498 A CN 105180498A CN 201510559137 A CN201510559137 A CN 201510559137A CN 105180498 A CN105180498 A CN 105180498A
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CN
China
Prior art keywords
refrigerant
air conditioner
split
type air
indoor
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CN201510559137.5A
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Chinese (zh)
Inventor
谭周衡
张�浩
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广东美的制冷设备有限公司
美的集团股份有限公司
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Priority to CN201510559137.5A priority Critical patent/CN105180498A/en
Publication of CN105180498A publication Critical patent/CN105180498A/en

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Abstract

The invention provides a floor-type split air conditioner, as well as a refrigerant recovering method and device for the floor-type split air conditioner. The floor-type split air conditioner comprises an indoor machine and an outdoor machine, wherein a throttling device, an indoor heat exchanger, a four-way valve and a compressor which sequentially communicate are arranged in the indoor machine; an outdoor heat exchanger is arranged in the outdoor machine; one end of the outdoor heat exchanger communicates with the throttling device through a first connecting pipeline; the other end of the outdoor heat exchanger communicates with the four-way valve through a second connecting pipeline; a first stop valve is arranged on the first connecting pipeline; a second stop valve is arranged on the second connecting pipeline. According to the technical scheme adopted by the air conditioner disclosed by the invention, the compressor is arranged in the indoor machine, so that the size of the outdoor machine and the weight of the outdoor machine can be reduced; therefore, the outdoor machine is convenient to mount, and the safety of mounting workers is improved; in addition, the four-way valve is positioned in the indoor machine, so that the connection of pipelines is reduced, and the material cost is reduced.

Description

Split-floor type air conditioner, refrigerant recovering method and refrigerant recovery device
Technical field
The present invention relates to household electrical appliance technical field, in particular to a kind of split-floor type air conditioner, a kind of refrigerant recovering method and a kind of refrigerant recovery device.
Background technology
At present, on market, split-floor type air conditioner Application comparison is general, on the compressor machine disposed in the outdoor of split-floor type air conditioner, but like this, because compressor is heavier, off-premises station can be caused also heavier, thus it is very inconvenient to make off-premises station install, need more number to install, improve installation cost, and increase installation personnel danger when mounted.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is to propose a kind of split-floor type air conditioner.
Another object of the present invention is to propose a kind of refrigerant recovering method for split-floor type air conditioner.
Another object of the present invention is to propose a kind of refrigerant recovery device for split-floor type air conditioner.
For realizing at least one object above-mentioned, embodiment according to a first aspect of the invention, propose a kind of split-floor type air conditioner, comprising: indoor set, in described indoor set, be provided with the throttling arrangement, indoor heat exchanger, cross valve and the compressor that are communicated with successively; Off-premises station, is provided with outdoor heat exchanger in described off-premises station, and one end of described outdoor heat exchanger is connected with described throttling arrangement by the first connecting line, and the other end of described outdoor heat exchanger is connected with described cross valve by the second connecting line; Wherein, described first connecting line is provided with the first stop valve, described second connecting line arranges the second stop valve.
According to the split-floor type air conditioner of the embodiment of the present invention, the inside of indoor set is provided with the throttling arrangement be communicated with successively, indoor heat exchanger, cross valve and compressor, off-premises station inside is provided with outdoor heat exchanger, by one end of outdoor heat exchanger is communicated with throttling arrangement by the first connecting line, and the other end is communicated with cross valve by the second connecting line, the first connecting line can be made, throttling arrangement, indoor heat exchanger, cross valve, compressor, second connecting line and outdoor heat exchanger connect into complete loop, realize the refrigeration of split-floor type air conditioner or heat, wherein, by the inside by machine disposed in the interior for compressor, the spatial volume of off-premises station can be reduced and alleviate the weight of off-premises station, make off-premises station easier for installation, thus decrease the number that off-premises station installs needs, save cost.In addition, by inner for cross valve also machine disposed in the interior, and be communicated with compressor with indoor heat exchanger, effectively can reduce the connection of pipeline, reduce material cost, but also make the easier for installation of split-floor type air conditioner, improve installation effectiveness.
Split-floor type air conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, described first stop valve and described second stop valve are arranged in described indoor set.
According to the split-floor type air conditioner of the embodiment of the present invention, first stop valve and the second stop valve to be separately positioned on the first connecting line and the second connecting line and to be arranged in indoor set, conveniently can carry out system leak detection like this, and refrigerant is effectively enclosed in indoor set.
According to one embodiment of present invention, one end of described outdoor heat exchanger is provided with the first nipple, described first nipple is threaded with described first connecting line, the other end of described outdoor heat exchanger is provided with the second nipple, and described second nipple is threaded with described second connecting line.
According to the split-floor type air conditioner of the embodiment of the present invention, outdoor heat exchanger is provided with the first nipple and the second nipple, by one end of the first connecting line is connected with the first stop valve of indoor set, the other end is connected with the first nipple, first stop valve that can realize indoor set is connected with outdoor heat exchanger, by one end of the second connecting line is connected with the second stop valve of indoor set, the other end is connected with the second nipple, second stop valve that can realize indoor set is connected with outdoor heat exchanger, by this connected mode, indoor set is connected with off-premises station, and form complete loop, to realize the working cycles of split-floor type air conditioner.By this technical scheme, first nipple and the second nipple can realize the first connecting line and the second connecting line is connected with the quick of outdoor heat exchanger, improve the installation effectiveness of outdoor heat exchanger and connecting line, and then improve the installation effectiveness of split-floor type air conditioner entirety, and save installation cost.
According to one embodiment of present invention, the ratio of the diameter of thread of described second nipple and the diameter of thread of described first nipple is in the scope of 1.5 to 3.
According to the split-floor type air conditioner of the embodiment of the present invention, because the refrigerant in the second connecting line is gaseous coolant, density is less, and the refrigerant in the first connecting line is liquid refrigerants, density is larger, so be arranged in the scope of 1.5 to 3 by the ratio of the diameter of thread by the diameter of thread of the second nipple and the first nipple, the cold medium flux of the cross-sectional area of the second connecting line and the first connecting line can be made to be consistent, thus to ensure that the operating efficiency of split-floor type air conditioner.
Wherein, also stop valve can be set at off-premises station, in indoor set, stop valve is not set, but when the first stop valve and the second stop valve are arranged in off-premises station, when carrying out refrigerant recovering, by refrigerant recovering in off-premises station, also stop valve need can be set in indoor set and off-premises station simultaneously, when carrying out refrigerant recovering like this, can be received in off-premises station and/or indoor set.
According to one embodiment of present invention, described indoor heat exchanger has the tube connector interface matched with the port of described cross valve, and described indoor heat exchanger to be matched with the port of described cross valve by described tube connector interface and to be directly communicated with described cross valve; Or described indoor heat exchanger is communicated with the port of described cross valve by the bending pipe that diameter is 9 millimeters to 18 millimeters.
According to the split-floor type air conditioner of the embodiment of the present invention, indoor heat exchanger directly can be communicated with cross valve, also can be communicated with cross valve by bending pipe, wherein, when indoor heat exchanger being communicated with cross valve by using bending pipe, the diameter of bending pipe should be preferably 9 millimeters to 18 millimeters, the flowing velocity of refrigerant when bending Flow In A Circular Tube can be reduced like this, thus effectively reduce the vibration of connecting line, reduce the noise being arranged on by cross valve and producing in indoor set, improve the experience of user, also improve the life-span of bending pipe simultaneously, and then improve the life-span of split-floor type air conditioner entirety.
According to one embodiment of present invention, described throttling arrangement is electric expansion valve, capillary, choke valve or heating power expansion valve.
According to the split-floor type air conditioner of the embodiment of the present invention, throttling arrangement can be electric expansion valve, capillary, choke valve or heating power expansion valve, particularly, by throttling arrangement is set to electric expansion valve, choke valve or heating power expansion valve, split-floor type air conditioner not only can be made to vary with temperature and adjust the size of flow, the constant speed realizing split-floor type air conditioner regulates, the energy consumption of split-floor type air conditioner can also be reduced simultaneously, particularly, it is simple that capillary has structure, cheap feature, by throttling arrangement being set to the production cost that capillary can reduce split-floor type air conditioner, wherein, described throttling arrangement can also be other the throttling parts with identical function.
According to one embodiment of present invention, indoor fan is provided with in described indoor set, described indoor fan is provided with described indoor heat exchanger towards the side of the air inlet of described indoor set, and wherein, the below of described indoor fan and described indoor heat exchanger is provided with described compressor; And being also provided with outdoor fan in described off-premises station, described outdoor fan is arranged on the side of described outdoor heat exchanger.
According to the split-floor type air conditioner of the embodiment of the present invention, by being provided with indoor heat exchanger at indoor fan towards the side of the air inlet of indoor set, first through indoor heat exchanger air can be made to enter indoor set from air inlet after, and first carry out heat exchange with indoor heat exchanger, then blow to the air outlet of indoor set through indoor fan, realize the refrigeration of indoor set or heat.In addition, by compressor being arranged at the below of indoor fan and indoor heat exchanger, the pipeline between compressor and indoor heat exchanger can be reduced, improve the operating efficiency of split-floor type air conditioner, and the stability of indoor set can be increased, prevent indoor set from toppling over, wherein, by the side of heat exchanger disposed in the outdoor for outdoor fan, can lower the temperature by the high temperature and high pressure gas of discharging in indoor set in outdoor.
Particularly, this indoor fan can be two cross flow fans, also can be single cross flow fan, preferably two cross flow fan.
According to one embodiment of present invention, the outer cover of described compressor is provided with noise reduction cotton or noise-reduction case.
According to the split-floor type air conditioner of the embodiment of the present invention, the outer cover of compressor is provided with noise reduction cotton or noise-reduction case, can reduce the noise that compressor operationally produces, improve the experience of user.
Embodiment according to a second aspect of the invention, propose a kind of refrigerant recovering method, for carrying out refrigerant recovering to the split-floor type air conditioner according to any one of technique scheme, described refrigerant recovering method comprises: the connected state described cross valve being switched to indoor heating pattern; Start described compressor, close described first stop valve, to reclaim the refrigerant in described split-floor type air conditioner; Judge whether the recovery of the refrigerant in described split-floor type air conditioner; When judged result is for being, close described compressor and described second stop valve.
According to the refrigerant recovering method of the embodiment of the present invention, by start compressor by the refrigerant recovering in outdoor heat exchanger in indoor set, avoid and occur the situation that pressure at expulsion is too high in refrigerant recovering process, thus can be clean by the refrigerant recovering in outdoor heat exchanger and the first connecting line and the second tube connector, and then ensure high efficiency and the security reliability of refrigerant recovering.In addition, close the first stop valve in the indoor set of split-floor type air conditioner, avoid refrigerant and flow in outdoor heat exchanger through the first stop valve, ensure that the abundant and clean of refrigerant recovering further.When having judged the recovery of the refrigerant in split-floor type air conditioner, close compressor and the second stop valve, thus ensure that the reliability of refrigerant recovering.
According to one embodiment of present invention, judged whether specifically to comprise the step of the recovery of the refrigerant in described split-floor type air conditioner: the current pressure values detecting described outdoor heat exchanger described in; Judge that whether the described current pressure values of described outdoor heat exchanger is lower than preset pressure value; When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovering method of the embodiment of the present invention, to in the process of refrigerant recovering, by the current pressure values of sensing chamber's external heat exchanger, thus can judge whether refrigerant reclaims totally exactly, such as, if when current pressure values is lower than preset pressure value, illustrate that refrigerant has reclaimed totally, then can close the second stop valve in indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, judged whether specifically to comprise the step of the recovery of the refrigerant in described split-floor type air conditioner described in: the lasting recovery time detecting the refrigerant reclaimed in described split-floor type air conditioner; Judge whether described lasting recovery time is greater than default recovery time; When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovering method of the embodiment of the present invention, to in the process of refrigerant recovering, if detect and the refrigerant recovering in outdoor heat exchanger to the lasting recovery time of indoor set be greater than default recovery time (such as, 5 minutes), illustrate that refrigerant has reclaimed totally, then can close the second stop valve in described indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, described described cross valve is switched to the step of the connected state of indoor heating pattern after, also comprise: start the indoor fan in described indoor set; And when having judged the recovery of the refrigerant in described split-floor type air conditioner, close described indoor fan.
According to the refrigerant recovering method of the embodiment of the present invention, because refrigerant temperature of indoor set in removal process is higher, therefore, by starting the indoor fan in indoor set, avoid temperature due to indoor set too high and cause refrigerant cannot thoroughly reclaim totally, ensure that the security reliability of refrigerant recovering further.
Embodiment according to a third aspect of the invention we, propose a kind of refrigerant recovery device, refrigerant recovering is carried out for the split-floor type air conditioner according to any one of technique scheme, described refrigerant recovery device comprises: control unit, for described cross valve being switched to the connected state of indoor heating pattern; Recovery unit, for starting described compressor, closes described first stop valve, to reclaim the refrigerant in described split-floor type air conditioner; Judging unit, for having judged whether the recovery of the refrigerant in described split-floor type air conditioner; Closing unit, for when having judged the recovery of the refrigerant in described split-floor type air conditioner, has closed described compressor and described second stop valve.
According to the refrigerant recovery device of the embodiment of the present invention, by start compressor by the refrigerant recovering in outdoor heat exchanger in indoor set, avoid and occur the situation that pressure at expulsion is too high in refrigerant recovering process, thus can be clean by the refrigerant recovering in outdoor heat exchanger and the first connecting line and the second tube connector, and then ensure the security reliability of refrigerant recovering.In addition, close the first stop valve in the indoor set of split-floor type air conditioner, avoid refrigerant and flow in outdoor heat exchanger through the first stop valve, ensure that the abundant and clean of refrigerant recovering further.When having judged the recovery of the refrigerant in split-floor type air conditioner, close compressor and the second stop valve, thus ensure that the reliability of refrigerant recovering.
According to one embodiment of present invention, described judging unit comprises: the first detecting unit, detects the current pressure values of described outdoor heat exchanger; Described judging unit specifically for, judge that whether the described current pressure values of described outdoor heat exchanger is lower than preset pressure value, when judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovery device of the embodiment of the present invention, to in the process of refrigerant recovering, by the current pressure values of sensing chamber's external heat exchanger, thus can judge whether refrigerant reclaims totally exactly, such as, if when current pressure values is lower than preset pressure value, illustrate that refrigerant has reclaimed totally, then can close the second stop valve in indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, described judging unit comprises: the second detecting unit, for detecting the lasting recovery time of the refrigerant reclaimed in described split-floor type air conditioner; Described judging unit specifically for, judging whether described lasting recovery time is greater than default recovery time, when judged result is for being, having judged the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovery device of the embodiment of the present invention, to in the process of refrigerant recovering, if detect and the refrigerant recovering in outdoor heat exchanger to the lasting recovery time of outdoor heat exchanger be greater than default recovery time (such as, 5 minutes), illustrate that refrigerant has reclaimed totally, then can close the second stop valve in described indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, described recovery unit also for, after described cross valve switches to the connected state of described indoor heating pattern in control, start the indoor fan in described indoor set; And described closing unit, also for when having judged the recovery of the refrigerant in described split-floor type air conditioner, close described indoor fan.
According to the refrigerant recovery device of the embodiment of the present invention, because refrigerant temperature of indoor set in removal process is higher, therefore, by starting the indoor fan in indoor set, avoid temperature due to indoor set too high and cause refrigerant cannot thoroughly reclaim totally, ensure that the security reliability of refrigerant recovering further.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the theory structure schematic diagram of split-floor type air conditioner according to an embodiment of the invention;
Fig. 2 shows the schematic flow diagram of refrigerant recovering method according to an embodiment of the invention;
Fig. 3 shows the schematic flow diagram of refrigerant recovering method according to another embodiment of the invention;
Fig. 4 shows the structural representation of refrigerant recovery device according to an embodiment of the invention.
Wherein, the corresponding relation in Fig. 1 between the mark of accompanying drawing and component names is:
1 indoor set, 11 indoor heat exchangers, 12 compressors, 13 cross valves, 14 throttling arrangements, 15 first stop valves, 16 second stop valves, 17 indoor fans, 2 off-premises stations, 21 outdoor heat exchangers, 22 outdoor fans, 23 first nipples, 24 second nipples.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the theory structure signal of split-floor type air conditioner according to an embodiment of the invention.
As shown in Figure 1, split-floor type air conditioner according to an embodiment of the invention, comprising: indoor set 1, is provided with the throttling arrangement 14, indoor heat exchanger 11, cross valve 13 and the compressor 12 that are communicated with successively in described indoor set 1; Off-premises station 2, outdoor heat exchanger 21 is provided with in described off-premises station 2, one end of described outdoor heat exchanger 21 is connected with described throttling arrangement 14 by the first connecting line, and the other end of described outdoor heat exchanger 21 is connected with described cross valve 13 by the second connecting line; Wherein, described first connecting line is provided with the first stop valve 15, described second connecting line is arranged the second stop valve 16.
According to the split-floor type air conditioner of the embodiment of the present invention, the inside of indoor set 1 is provided with the throttling arrangement 14 be communicated with successively, indoor heat exchanger 11, cross valve 13 and compressor 12, off-premises station 2 inside is provided with outdoor heat exchanger 21, by one end of outdoor heat exchanger 21 is communicated with throttling arrangement 14 by the first connecting line, and the other end is communicated with cross valve 13 by the second connecting line, the first connecting line can be made, throttling arrangement 14, indoor heat exchanger 11, cross valve 13, compressor 12, second connecting line and outdoor heat exchanger 21 connect into complete loop, realize the refrigeration of split-floor type air conditioner or heat, wherein, by the inside by machine 1 disposed in the interior for compressor 12, the spatial volume of off-premises station 2 can be reduced and alleviate the weight of off-premises station 2, make off-premises station 2 easier for installation, thus decrease the number that off-premises station 2 installs needs, save cost.In addition, by inner for cross valve 13 also machine 1 disposed in the interior, and be communicated with compressor 12 with indoor heat exchanger 11, effectively can reduce the connection of pipeline, reduce material cost, but also make the easier for installation of split-floor type air conditioner, improve installation effectiveness.
Split-floor type air conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, as shown in Figure 1, described first stop valve 15 and described second stop valve 16 are positioned at described indoor set 1.
According to the split-floor type air conditioner of the embodiment of the present invention, first stop valve 15 and the second stop valve 16 to be separately positioned on the first connecting line and the second connecting line and to be arranged in indoor set 1, conveniently can carry out system leak detection like this, and refrigerant is effectively enclosed in indoor set 1.
According to one embodiment of present invention, as shown in Figure 1, one end of described outdoor heat exchanger 21 is provided with the first nipple 23, described first nipple 23 is threaded with described first connecting line, the other end of described outdoor heat exchanger 21 is provided with the second nipple 24, and described second nipple 24 is threaded with described second connecting line.
According to the split-floor type air conditioner of the embodiment of the present invention, outdoor heat exchanger 21 is provided with the first nipple 23 and the second nipple 24, by one end of the first connecting line is connected with the first stop valve 15 of indoor set 1, the other end is connected with the first nipple 23, first stop valve 15 that can realize indoor set 1 is connected with outdoor heat exchanger 21, by one end of the second connecting line is connected with the second stop valve 16 of indoor set 1, the other end is connected with the second nipple 24, second stop valve 16 that can realize indoor set 1 is connected with outdoor heat exchanger 21, by this connected mode, indoor set 1 is connected with off-premises station 2, and form complete loop, to realize the working cycles of split-floor type air conditioner.By this technical scheme, first nipple 23 and the second nipple 24 can realize the first connecting line and the second connecting line is connected with the quick of outdoor heat exchanger 21, improve the installation effectiveness of outdoor heat exchanger 21 and connecting line, and then improve the installation effectiveness of split-floor type air conditioner entirety, and save installation cost.
According to one embodiment of present invention, as shown in Figure 1, the ratio of the diameter of thread of described second nipple 24 and the diameter of thread of described first nipple 23 is in the scope of 1.5 to 3.
According to the split-floor type air conditioner of the embodiment of the present invention, because the refrigerant in the second connecting line is gaseous coolant, density is less, and the refrigerant in the first connecting line is liquid refrigerants, density is larger, so be arranged in the scope of 1.5 to 3 by the ratio of the diameter of thread by the diameter of thread of the second nipple 24 and the first nipple 23, the cold medium flux of the cross-sectional area of the second connecting line and the first connecting line can be made to be consistent, thus to ensure that the operating efficiency of split-floor type air conditioner.
Wherein, also stop valve can be set at off-premises station, in indoor set, stop valve is not set, but when the first stop valve and the second stop valve are arranged in off-premises station, when carrying out refrigerant recovering, by refrigerant recovering in off-premises station, also stop valve need can be set in indoor set and off-premises station simultaneously, when carrying out refrigerant recovering like this, can be received in off-premises station and/or indoor set.
According to one embodiment of present invention, as shown in Figure 1, described indoor heat exchanger 11 has the tube connector interface matched with the port of described cross valve 13, and described indoor heat exchanger 11 to be matched with the port of described cross valve 13 by described tube connector interface and to be directly communicated with described cross valve 13; Or described indoor heat exchanger 11 is that the bending pipe of 9 millimeters to 18 millimeters is communicated with the port of described cross valve 13 by diameter.
According to the split-floor type air conditioner of the embodiment of the present invention, indoor heat exchanger 11 directly can be communicated with cross valve 13, also can be communicated with cross valve 13 by bending pipe, wherein, when indoor heat exchanger 11 being communicated with cross valve 13 by using bending pipe, the diameter of bending pipe should be preferably 9 millimeters to 18 millimeters, the flowing velocity of refrigerant when bending Flow In A Circular Tube can be reduced like this, thus effectively reduce the vibration of connecting line, reduce the noise being arranged on by cross valve 13 and producing in indoor set 1, improve the experience of user, also improve the life-span of bending pipe simultaneously, and then improve the life-span of split-floor type air conditioner entirety.
According to one embodiment of present invention, as shown in Figure 1, described throttling arrangement 14 is electric expansion valve, capillary, choke valve or heating power expansion valve.
According to the split-floor type air conditioner of the embodiment of the present invention, throttling arrangement 14 can be electric expansion valve, capillary, choke valve or heating power expansion valve, particularly, by throttling arrangement 14 is set to electric expansion valve, any one in choke valve or heating power expansion valve, split-floor type air conditioner not only can be made to vary with temperature and adjust the size of flow, the constant speed realizing split-floor type air conditioner regulates, the energy consumption of split-floor type air conditioner can also be reduced simultaneously, particularly, it is simple that capillary has structure, cheap feature, by throttling arrangement 14 is set to the production cost that capillary can reduce split-floor type air conditioner, wherein, described throttling arrangement 14 can also be other the throttling parts with identical function.
According to one embodiment of present invention, as shown in Figure 1, indoor fan 17 is provided with in described indoor set 1, described indoor fan 17 is provided with described indoor heat exchanger 11 towards the side of the air inlet of described indoor set 1, wherein, the below of described indoor fan 17 and described indoor heat exchanger 11 is provided with described compressor 12; And being also provided with outdoor fan 22 in described off-premises station 2, described outdoor fan 22 is arranged on the side of described outdoor heat exchanger 21.
According to the split-floor type air conditioner of the embodiment of the present invention, by being provided with indoor heat exchanger 11 at indoor fan towards the side of the air inlet of indoor set 1, first through indoor heat exchanger 11 air can be made to enter indoor set 1 from air inlet after, and first carry out heat exchange with indoor heat exchanger 11, then blow to the air outlet of indoor set 1 through indoor fan, realize the refrigeration of indoor set 1 or heat.In addition, by compressor 12 being arranged at the below of indoor fan and indoor heat exchanger 11, the pipeline between compressor 12 and indoor heat exchanger 11 can be reduced, improve the operating efficiency of split-floor type air conditioner, and the stability of indoor set 1 can be increased, prevent indoor set 1 from toppling over, wherein, by the side of heat exchanger 21 disposed in the outdoor for outdoor fan 22, can lower the temperature by the high temperature and high pressure gas of discharging in indoor set 1 in outdoor.
Particularly, the blower fan of this indoor set 1 is indoor fan 17, and this indoor fan 17 can be two cross flow fan also can be single cross flow fan, preferably two cross flow fan.
According to one embodiment of present invention, as shown in Figure 1, the outer cover of described compressor 12 is provided with noise reduction cotton or noise-reduction case.
According to the split-floor type air conditioner of the embodiment of the present invention, the outer cover of compressor 12 is provided with noise reduction cotton or noise-reduction case, can reduce the noise that compressor 12 operationally produces, improve the experience of user.
Fig. 2 shows the schematic flow diagram of refrigerant recovering method according to an embodiment of the invention.
As shown in Figure 2, refrigerant recovering method according to an embodiment of the invention, for carrying out refrigerant recovering to the split-floor type air conditioner according to any one of technique scheme, described refrigerant recovering method comprises:
Step 202, switches to the connected state of indoor heating pattern by described cross valve;
Step 204, starts described compressor, closes described first stop valve, to reclaim the refrigerant in described split-floor type air conditioner;
Step 206, has judged whether the recovery of the refrigerant in described split-floor type air conditioner;
Step 208, when judged result is for being, closes described compressor and described second stop valve.
According to the refrigerant recovering method of the embodiment of the present invention, by start compressor by the refrigerant recovering in outdoor heat exchanger in indoor set, avoid and occur the situation that pressure at expulsion is too high in refrigerant recovering process, thus can be clean by the refrigerant recovering in outdoor heat exchanger and the first connecting line and the second tube connector, and then ensure the security reliability of refrigerant recovering.In addition, close the first stop valve in the indoor set of split-floor type air conditioner, avoid refrigerant and flow in outdoor heat exchanger through the first stop valve, ensure that the abundant and clean of refrigerant recovering further.When having judged the recovery of the refrigerant in split-floor type air conditioner, close compressor and the second stop valve, thus ensure that the reliability of refrigerant recovering.
According to one embodiment of present invention, step 206, specifically comprises: the current pressure values detecting described outdoor heat exchanger; Judge that whether the described current pressure values of described outdoor heat exchanger is lower than preset pressure value; When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovering method of the embodiment of the present invention, to in the process of refrigerant recovering, by the current pressure values of sensing chamber's external heat exchanger, thus can judge whether refrigerant reclaims totally exactly, such as, if when current pressure values is lower than preset pressure value, illustrate that refrigerant has reclaimed totally, then can close the second stop valve in indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, step 206, specifically comprises: the lasting recovery time detecting the refrigerant reclaimed in described split-floor type air conditioner; Judge whether described lasting recovery time is greater than default recovery time; When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovering method of the embodiment of the present invention, to in the process of refrigerant recovering, if detect and the refrigerant recovering in outdoor heat exchanger to the lasting recovery time of outdoor heat exchanger be greater than default recovery time (such as, 5 minutes), illustrate that refrigerant has reclaimed totally, then can close the second stop valve in described indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, after step 202, also comprise: start the indoor fan in described indoor set; And when having judged the recovery of the refrigerant in described split-floor type air conditioner, close described indoor fan.
According to the refrigerant recovering method of the embodiment of the present invention, because refrigerant temperature of indoor set in removal process is higher, therefore, by starting the indoor fan in indoor set, avoid temperature due to indoor set too high and cause refrigerant cannot thoroughly reclaim totally, ensure that the security reliability of refrigerant recovering further.
Fig. 3 shows the schematic flow diagram of refrigerant recovering method according to another embodiment of the invention.
As shown in Figure 3, refrigerant recovering method according to another embodiment of the invention, comprising:
Step 302, opens refrigerant take-back model.
Step 304, switches to the connected state of indoor heating pattern by cross valve, start compressor, indoor fan, close the first stop valve, with by the refrigerant recovering in outdoor heat exchanger in indoor heat exchanger.
Step 306, after default recovery time, namely detects that the lasting recovery time reclaiming refrigerant is greater than default recovery time, close compressor and indoor fan.
Step 308, closes the second stop valve, terminates the recovery to refrigerant.
Fig. 4 shows the structural representation of refrigerant recovery device according to an embodiment of the invention.
As shown in Figure 4, refrigerant recovery device 400 according to an embodiment of the invention, refrigerant recovering is carried out for the split-floor type air conditioner according to any one of technique scheme, described refrigerant recovery device 400 comprises: control unit 402, for described cross valve being switched to the connected state of indoor heating pattern; Recovery unit 404, for starting described compressor, closes described first stop valve, to reclaim the refrigerant in described split-floor type air conditioner; Judging unit 406, for having judged whether the recovery of the refrigerant in described split-floor type air conditioner; Closing unit 408, for when having judged the recovery of the refrigerant in described split-floor type air conditioner, has closed described compressor and described second stop valve.
According to the refrigerant recovery device 400 of the embodiment of the present invention, by start compressor by the refrigerant recovering in outdoor heat exchanger in the indoor heat exchanger of indoor set, avoid and occur the situation that pressure at expulsion is too high in refrigerant recovering process, thus can be clean by the refrigerant recovering in refrigerant outdoor heat exchanger and the first connecting line and the second tube connector, and then ensure high efficiency and the security reliability of refrigerant recovering.In addition, close the first stop valve in the indoor set of split-floor type air conditioner, avoid refrigerant and flow in outdoor heat exchanger through the first stop valve, ensure that the abundant and clean of refrigerant recovering further.When having judged the recovery of the refrigerant in split-floor type air conditioner, close compressor and the second stop valve, thus ensure that the reliability of refrigerant recovering.
According to one embodiment of present invention, described judging unit 406 comprises: the first detecting unit 4062, detects the current pressure values of described outdoor heat exchanger; Described judging unit 406 specifically for, judge that whether the described current pressure values of described outdoor heat exchanger is lower than preset pressure value, when judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovery device 400 of the embodiment of the present invention, to in the process of refrigerant recovering, by the current pressure values of sensing chamber's external heat exchanger, thus can judge whether refrigerant reclaims totally exactly, such as, if when current pressure values is lower than preset pressure value, illustrate that refrigerant has reclaimed totally, then can close the second stop valve in indoor set and compressor, to terminate the recovery to refrigerant.
According to one embodiment of present invention, described judging unit 406 comprises: the second detecting unit 4064, for detecting the lasting recovery time of the refrigerant reclaimed in described split-floor type air conditioner; Described judging unit 406 specifically for, judging whether described lasting recovery time is greater than default recovery time, when judged result is for being, having judged the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
According to the refrigerant recovery device 400 of the embodiment of the present invention, to in the process of refrigerant recovering, if detect and the refrigerant recovering in outdoor heat exchanger to the lasting recovery time of outdoor heat exchanger be greater than default recovery time (such as, 5 minutes), illustrate that refrigerant has reclaimed totally, then can close the second stop valve in described indoor set and compressor, to terminate the recovery to refrigerant.According to one embodiment of present invention, described recovery unit 404 also for, after described cross valve switches to the connected state of described indoor heating pattern in control, start the indoor fan in described indoor set; And described closing unit 408, also for when having judged the recovery of the refrigerant in described split-floor type air conditioner, close described indoor fan.
According to the refrigerant recovery device 400 of the embodiment of the present invention, because refrigerant temperature of indoor set in removal process is higher, therefore, by starting the indoor fan in indoor set, avoid temperature due to indoor set too high and cause refrigerant cannot thoroughly reclaim totally, ensure that the security reliability of refrigerant recovering further.
More than be described with reference to the accompanying drawings technical scheme of the present invention, can avoid split-floor type air conditioner in refrigerant recovering process, occur the problem of the too high and excessive discharge temperature of pressure at expulsion, thus it is clean that refrigerant is reclaimed in heat exchanger, and then ensure the security reliability of refrigerant recovering outdoor.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (16)

1. a split-floor type air conditioner, is characterized in that, comprising:
Indoor set, is provided with the throttling arrangement, indoor heat exchanger, cross valve and the compressor that are communicated with successively in described indoor set;
Off-premises station, is provided with outdoor heat exchanger in described off-premises station, and one end of described outdoor heat exchanger is connected with described throttling arrangement by the first connecting line, and the other end of described outdoor heat exchanger is connected with described cross valve by the second connecting line; Wherein,
Described first connecting line is provided with the first stop valve, described second connecting line arranges the second stop valve.
2. split-floor type air conditioner according to claim 1, is characterized in that,
Described first stop valve and described second stop valve are arranged in described indoor set.
3. split-floor type air conditioner according to claim 2, is characterized in that,
One end of described outdoor heat exchanger is provided with the first nipple, described first nipple is threaded with described first connecting line, the other end of described outdoor heat exchanger is provided with the second nipple, and described second nipple is threaded with described second connecting line.
4. split-floor type air conditioner according to claim 3, is characterized in that,
The ratio of the diameter of thread of described second nipple and the diameter of thread of described first nipple is in the scope of 1.5 to 3.
5. split-floor type air conditioner according to claim 1, is characterized in that,
Described indoor heat exchanger has the tube connector interface matched with the port of described cross valve, and described indoor heat exchanger to be matched with the port of described cross valve by described tube connector interface and to be directly communicated with described cross valve; Or
The bending pipe that described indoor heat exchanger is 9 millimeters to 18 millimeters by diameter is communicated with the port of described cross valve.
6. want the split-floor type air conditioner according to any one of 1 to 5 according to right, it is characterized in that,
Described throttling arrangement is electric expansion valve, capillary, choke valve or heating power expansion valve.
7. split-floor type air conditioner according to any one of claim 1 to 5, is characterized in that,
Be provided with indoor fan in described indoor set, described indoor fan is provided with described indoor heat exchanger towards the side of the air inlet of described indoor set, and wherein, the below of described indoor fan and described indoor heat exchanger is provided with described compressor; And
Also be provided with outdoor fan in described off-premises station, described outdoor fan is arranged on the side of described outdoor heat exchanger.
8. split-floor type air conditioner according to any one of claim 1 to 5, is characterized in that, the outer cover of described compressor is provided with noise reduction cotton or noise-reduction case.
9. a refrigerant recovering method, is characterized in that, for carrying out refrigerant recovering to the split-floor type air conditioner such as according to any one of claim 1 to 8, described refrigerant recovering method comprises:
Described cross valve is switched to the connected state of indoor heating pattern;
Start described compressor, close described first stop valve, to reclaim the refrigerant in described split-floor type air conditioner;
Judge whether the recovery of the refrigerant in described split-floor type air conditioner;
When judged result is for being, close described compressor and described second stop valve.
10. refrigerant recovering method according to claim 9, is characterized in that, described in judged whether specifically to comprise the step of the recovery of the refrigerant in described split-floor type air conditioner:
Detect the current pressure values of described outdoor heat exchanger;
Judge that whether the described current pressure values of described outdoor heat exchanger is lower than preset pressure value;
When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
11. refrigerant recovering methods according to claim 9, is characterized in that, described in judged whether specifically to comprise the step of the recovery of the refrigerant in described split-floor type air conditioner:
Detect the lasting recovery time of the refrigerant reclaimed in described split-floor type air conditioner;
Judge whether described lasting recovery time is greater than default recovery time;
When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
12. refrigerant recovering methods according to any one of claim 9 to 11, is characterized in that, described described cross valve is switched to the step of the connected state of indoor heating pattern after, also comprise:
Start the indoor fan in described indoor set; And
When having judged the recovery of the refrigerant in described split-floor type air conditioner, close described indoor fan.
13. 1 kinds of refrigerant recovery devices, is characterized in that, for carrying out refrigerant recovering to the split-floor type air conditioner such as according to any one of claim 1 to 8, described refrigerant recovery device comprises:
Control unit, for switching to the connected state of indoor heating pattern by described cross valve;
Recovery unit, for starting described compressor, closes described first stop valve, to reclaim the refrigerant in described split-floor type air conditioner;
Judging unit, for having judged whether the recovery of the refrigerant in described split-floor type air conditioner;
Closing unit, for when having judged the recovery of the refrigerant in described split-floor type air conditioner, has closed described compressor and described second stop valve.
14. refrigerant recovery devices according to claim 13, is characterized in that, described judging unit comprises:
First detecting unit, detects the current pressure values of described outdoor heat exchanger;
Described judging unit specifically for, judge that whether the described current pressure values of described outdoor heat exchanger is lower than preset pressure value,
When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
15. refrigerant recovery devices according to claim 13, is characterized in that, described judging unit comprises:
Second detecting unit, for detecting the lasting recovery time of the refrigerant reclaimed in described split-floor type air conditioner;
Described judging unit specifically for, judge whether described lasting recovery time is greater than default recovery time,
When judged result is for being, judge the recovery of the refrigerant in described split-floor type air conditioner, otherwise, judge the recovery of the refrigerant do not completed in described split-floor type air conditioner.
16., according to claim 13 to the refrigerant recovery device according to any one of 15, is characterized in that,
Described recovery unit also for, after described cross valve switches to the connected state of described indoor heating pattern in control, start the indoor fan in described indoor set; And
Described closing unit, also for when having judged the recovery of the refrigerant in described split-floor type air conditioner, closes described indoor fan.
CN201510559137.5A 2015-09-02 2015-09-02 Floor-type split air conditioner, refrigerant recovering method and device CN105180498A (en)

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CN109357369A (en) * 2018-09-10 2019-02-19 珠海格力电器股份有限公司 Air conditioner and its refrigerant recovering control method
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