CN112460739A - Anti-freezing device and control method thereof, heat pump unit and air conditioner - Google Patents
Anti-freezing device and control method thereof, heat pump unit and air conditioner Download PDFInfo
- Publication number
- CN112460739A CN112460739A CN202011305350.0A CN202011305350A CN112460739A CN 112460739 A CN112460739 A CN 112460739A CN 202011305350 A CN202011305350 A CN 202011305350A CN 112460739 A CN112460739 A CN 112460739A
- Authority
- CN
- China
- Prior art keywords
- heat
- freezing
- temperature
- pipeline
- prevented
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
- F24F1/0093—Indoor units, e.g. fan coil units characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides an anti-freezing device and a control method thereof, a heat pump unit and an air conditioner, wherein the anti-freezing device comprises a heating part, a part to be anti-frozen and a heat exchange part; the heating part is provided with a fluid outlet; the heat exchanging part is provided with a heat exchanging inlet; the heat exchange inlet is communicated with the fluid outlet through a pipeline; the pipeline is used for guiding the fluid heated by the heating part to enter the heat exchange part; the heat exchanging part is used for exchanging heat between the fluid heated by the heating part and the part to be prevented from freezing. According to the anti-freezing device, the control method of the anti-freezing device, the heat pump unit and the air conditioner, the problem that the unit is easy to freeze in a low-temperature environment is effectively solved.
Description
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to an anti-freezing device, a control method of the anti-freezing device, a heat pump unit and an air conditioner.
Background
At present, due to installation condition limitation and water pump operation noise, an indoor unit of a split type heat pump water machine needs to be installed outdoors together with an outdoor unit under certain conditions.
However, in a low-temperature environment in winter, when the indoor unit is installed outdoors, some mechanisms or components with low flow rate and small pipe diameter, such as pipelines corresponding to the expansion tank, drainage pipelines, water supply pipelines, etc., may have a risk of freezing, causing freezing and cracking inside the pipelines, and in a severe case, may cause water in the system to flow into the refrigerant system, resulting in the complete machine being scrapped.
Therefore, how to provide an anti-freezing device capable of effectively solving the problem that a unit is easy to freeze in a low-temperature environment, a control method thereof, a heat pump unit and an air conditioner becomes a problem which needs to be solved urgently by a person skilled in the art.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to provide an anti-freezing device, a control method thereof, a heat pump unit and an air conditioner, which can effectively solve the problem that the unit is easy to freeze in a low-temperature environment.
In order to solve the above problems, the present application provides an anti-freeze apparatus including:
a heating section having a fluid outlet;
a portion to be protected from freezing;
the heat exchange part is provided with a heat exchange inlet; the heat exchange inlet is communicated with the fluid outlet through a pipeline; the pipeline is used for guiding the fluid heated by the heating part to enter the heat exchange part; the heat exchanging part is used for exchanging heat between the fluid heated by the heating part and the part to be prevented from freezing.
Preferably, the heating part has a fluid inlet; the heat exchange part is provided with a heat exchange outlet; the heat exchange outlet is communicated with the fluid inlet.
Preferably, the anti-freeze apparatus further comprises a control valve; the control valve is used for controlling the on-off of the pipeline.
Preferably, the anti-freezing device further comprises a temperature detection device; the temperature detection device is used for detecting the temperature of the part to be prevented from freezing;
and/or the anti-freezing device also comprises a pump body; the pump body comprises a pump body inlet and a pump body outlet; the pump body inlet is communicated with the fluid outlet; the outlet of the pump body is communicated with the heat exchange inlet.
Preferably, the size of the heat exchanging part corresponds to the size of the part to be prevented from freezing;
and/or the position of the heat exchanging part corresponds to the position of the part to be prevented from freezing.
According to still another aspect of the application, a heat pump unit is provided, which comprises an anti-freezing device, wherein the anti-freezing device is the anti-freezing device.
Preferably, the heat pump unit comprises an indoor unit; the indoor unit is a part to be prevented from freezing; the indoor unit comprises a shell; the heat exchange part is arranged in the shell.
Preferably, when the anti-freezing device further comprises a pump body, the heat pump unit further comprises an expansion tank; the expansion tank is connected with the pump body through a connecting pipe; the connecting pipe is a part to be prevented from freezing;
and/or, the heat pump unit also comprises a water flow switch; the water flow switch is a part to be prevented from freezing.
According to still another aspect of the application, an air conditioner is provided, which comprises a heat pump unit, wherein the heat pump unit is the heat pump unit.
According to still another aspect of the present application, there is provided an antifreeze control method as described above, including the steps of:
detecting the temperature t of a part to be prevented from freezing;
and controlling the on-off of the pipeline according to the temperature t.
Preferably, the step of controlling the on-off of the pipeline according to the temperature t comprises the following steps:
when the temperature t is less than or equal to t1, the control pipeline is communicated; wherein t1 is a first preset temperature;
and/or when the temperature t is not less than t2, the control pipeline is disconnected; wherein t2 is a second preset temperature; t1< t 2.
The application provides an anti-freezing device and control method, heat pump set and air conditioner can make the fluid after the heating enter heat transfer portion, and heat transfer portion carries out the heat exchange with the portion of waiting to prevent frostbite, and the portion of waiting to prevent frostbite can be treated to the fluid after the heating, can effectually prevent to wait to prevent that frostbite is frozen, and then effectively solve the problem that the unit freezes easily under the low temperature environment.
Drawings
FIG. 1 is a system diagram of an antifreeze apparatus according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a heat pump unit according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a heat pump unit according to an embodiment of the present application;
FIG. 4 is a system diagram of an antifreeze apparatus according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a heat pump unit according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a heat pump unit according to an embodiment of the present application.
The reference numerals are represented as:
1. a heating section; 11. an air tube; 12. a liquid pipe; 2. a heat exchanging part; 31. a chassis; 32. a side plate; 33. a cover plate; 4. an expansion tank; 41. a connecting pipe; 5. a pump body; 51. a pump body water inlet pipe; 6. a control valve; 7. a temperature detection device; 81. a water inlet pipe; 82. a water outlet pipe; 83. an electrical box; 84. a water flow switch.
Detailed Description
Referring to fig. 1 in combination, according to an embodiment of the present application, an anti-freezing device includes a heating portion 1, a portion to be anti-frozen, and a heat exchanging portion 2; the heating section 1 has a fluid outlet; the heat exchanging part 2 is provided with a heat exchanging inlet; the heat exchange inlet is communicated with the fluid outlet through a pipeline; the pipeline is used for guiding the fluid heated by the heating part 1 into the heat exchanging part 2; the heat exchanging part 2 is used for exchanging heat between the fluid heated by the heating part 1 and the part to be prevented from freezing, so that the heated fluid can enter the heat exchanging part 2, the heat exchanging part 2 exchanges heat with the part to be prevented from freezing, the heated fluid can heat the part to be prevented from freezing, and the part to be prevented from freezing can be effectively prevented. The anti-freezing problem of the indoor unit of the heat pump system, namely the pipeline or the component with the water side of the heat pump installed outdoors, in a low-temperature environment can be solved, and the water side of the heat pump installed outdoors can be ensured to run reliably and stably.
Referring to fig. 2 in combination, the present application also discloses embodiments where the heating section 1 has a fluid inlet; the heat exchanging part 2 is provided with a heat exchanging outlet; the heat exchange outlet is communicated with the fluid inlet, so that fluid subjected to heat exchange in the heat exchange part 2 enters the fluid inlet and can enter the heating part 1 again to be heated, and the heat supply pump unit is used, so that resources can be saved. Namely, an auxiliary heating pipeline is arranged between the fluid inlet and the fluid outlet, an electric ball valve is connected in series on the pipeline to control the on-off of the pipeline, a heat exchanging part 2 is connected in series behind the electric ball valve, and finally the auxiliary heating pipeline flows back to the fluid inlet from the heat exchanging part 2. Temperature detection parts are arranged at the fluid inlet and the fluid outlet of the heating part 1, and are used for detecting the temperature of the fluid entering and exiting the heating part 1.
The application also discloses embodiments, the anti-freeze apparatus further comprises a control valve 6; the control valve 6 is used for controlling the on-off of the pipeline. The control valve 6 is arranged on the pipeline; the control valve 6 may be an electric ball valve. The control valve 6 may be a solenoid valve.
The application also discloses some embodiments, the anti-freezing device further comprises a temperature detection device 7; the temperature detection device 7 is used for detecting the temperature of the portion to be protected from freezing. The temperature of the anti-freezing part can be effectively detected, and the control valve 6 controls the on-off of the pipeline according to the temperature detected by the temperature detection device 7 so as to control the work of the heat exchanging part 2. The temperature detection device 7 is a bulb.
The anti-freezing device also comprises a pump body 5; the pump body 5 comprises a pump body inlet and a pump body outlet; the pump body inlet is communicated with the fluid outlet; the outlet of the pump body is communicated with the heat exchange inlet. The pump body 5 is a water pump. The pipeline is arranged at the water outlet pipe 82 of the system, and the pipeline is positioned at the water outlet end of the water pump, so that the pressure is highest, and the circulation of a flow path can be ensured. The pump body 5 further comprises a pump body water inlet pipe 51, and the pump body water inlet pipe 51 is communicated with the pump body inlet.
The application also discloses some embodiments, the size of the heat exchange part 2 corresponds to the size of the part to be prevented from freezing;
the position of the heat exchanging part 2 corresponds to the position of the part to be protected from freezing.
According to the embodiment of the application, the heat pump unit comprises the anti-freezing device. Compared with the traditional internal machine, the method and the device can effectively solve the problem that the internal pipeline or the component of the machine set which needs to be installed outdoors in a low-temperature environment is damaged and loses efficacy due to the limitation of installation conditions and the like of the internal machine; and then solved among the prior art can only indoor location requirement, can be with the unit at outdoor installation, the noise problem that the water pump operation brought can effectively be solved in outdoor installation, promotes user experience.
Referring to fig. 3 in combination, the present application also discloses some embodiments in which the heat pump unit includes an indoor unit; the indoor unit is a part to be prevented from freezing; the indoor unit comprises a shell; the heat exchanging portion 2 is disposed in the case.
The heat pump unit is a split type heat pump unit and comprises an indoor unit, and a shell of the indoor unit comprises a cover plate 33, four side plates 32 and a base plate 31. The indoor unit main body includes a heating unit 1, a pump body 5, an electric appliance box 83, an expansion tank 4, a heat exchanging unit 2, and the like. An electrical box 83 is disposed in front of the heating part 1, and the electrical box 83 is composed of an electrical box housing and various electrical and controller components installed in the electrical box housing for controlling the operation of the air conditioner. The pump body 5 is a water pump and is located on the left side of the heating unit 1 and the electric appliance box 83. The heating part 1 is a heat exchanger which is also provided with an air pipe 11 and a liquid pipe 12; the heat exchanger makes the refrigerant exchange heat with the water system, so that the fluid, namely the water temperature, is increased to play a heating role. The hot water flows out from the fluid outlet of the heating part 1, enters the heat exchanging part 2 and exchanges heat with the part to be prevented from freezing in the low-temperature environment inside the unit. The heat exchanging part 2 is a heat exchanger. At the moment, the heat exchange part 2 is arranged in the shell, and the size of the heat exchange part 2 corresponds to that of the shell; the heat exchanging part 2 exchanges heat with the whole indoor unit, and the anti-freezing effect of the whole indoor unit can be achieved.
The unit also comprises a water inlet pipe 81 and a water outlet pipe 82; the water outlet pipe 82 is communicated with the outlet of the water pump; the water inlet pipe 81 is communicated to the fluid inlet of the heating part 1, and the water outlet pipe 82 is communicated to the fluid outlet of the heating part 1; when the unit works, cold water flows in from the water inlet pipe 81, passes through the heating part 1, is heated in the heating part 1 to enable the water temperature to rise, flows into the water pump through the water inlet pipe 81 of the water pump, and flows out from the water outlet pipe 82 under the action of the water pump. The pipeline is arranged at the position of a water outlet pipe 82 of the system, the position is located at the water outlet end of the water pump, the pressure is highest, and the circulation of a flow path can be ensured.
Under low temperature environment, the inside temperature of unit is very low, when being less than first preset temperature t1, the electric ball valve on the pipeline is opened, and partly hot-water inflow of system is heat transfer portion 2, and heat transfer portion 2 begins to play the heat transfer effect for the whole rising of unit casing inside temperature effectively avoids the temperature to hang down pipeline or electronic components excessively. Finally, the water flows from the heat exchange outlet back to the inlet pipe 81. When the temperature inside the unit rises to the second preset temperature t2, the control valve 6 is closed, so that the heat exchanging part 2 stops operating.
Under low temperature environment, system operation temperature is higher, because the interior machine area is less, places heat transfer portion 2 in the casing, and the size is corresponding with the casing, can guarantee that the inside bulk temperature of unit casing maintains above frostproofing temperature t1, prevents effectively that unit pipeline or components and parts from freezing, can reach the requirement of outdoor installation, has also avoided the noise that indoor installation water pump operation brought simultaneously, has improved user experience.
4-6, the present application further discloses embodiments in which, when the anti-freeze apparatus further comprises a pump body 5, the heat pump unit further comprises an expansion tank 4; the expansion tank 4 is connected with the pump body 5 through a connecting pipe 41; the connection pipe 41 is a portion to be prevented from freezing;
the heat pump unit also includes a water flow switch 84; the water flow switch 84 is a portion to be protected from freezing. The water flow switch 84 is arranged on the water inlet pipe 81; the heat exchange outlet is located upstream of the water flow switch 84.
When the anti-freezing device is installed outdoors in a low-temperature environment, the whole unit is not required to be anti-frozen sometimes, in this case, only pipelines or components which are easy to freeze need to be prevented, and the part to be anti-frozen can be any part needing anti-freezing, such as a drainage pipeline, a water replenishing pipeline and the like.
When the unit is operated, cold water flows in from the water inlet pipe 81, passes through the heating part 1, the water temperature is increased under the action of the heating part 1, the cold water flows in the water pump through the water inlet pipe 81 of the water pump, and hot water flows out from the water outlet pipe 82 under the action of the water pump. The pipe is arranged at the water outlet pipe 82, which is positioned at the water outlet end of the water pump, and the pressure is highest, so that the circulation of the flow path is ensured.
Under the low temperature environment, the temperature in the unit is very low, and because the water in the connecting pipe 41 between the expansion tank 4 and the water inlet pipe 81 of the water pump does not flow or flows very little, and no heat can be supplied for the anti-freezing, the connecting pipe 41 can not be effectively thawed after being frozen, the expansion tank 4 and the connecting pipe 41 can not be effectively thawed, and even the expansion tank 4 and the connecting pipe 41 can be damaged by freezing. Therefore only need solve the connecting pipe 41 and prevent frostbite can, set up the pipeline of a connection heat transfer portion 2 on outlet pipe 82, detect out when the bulb detects that connecting pipe 41 is less than first preset temperature t1, the electronic ball valve on the pipeline is opened, and system's some hot water flows into heat transfer portion 2, and heat transfer portion 2 begins to act on, and connecting pipe 41 temperature risees, effectively avoids the temperature to hang down the pipeline excessively and leads to expansion tank 4 to become invalid. Finally, the water flows back from the heat exchanging portion 2 to the water inlet pipe 81. When the temperature of the connection pipe 41 rises to the second preset temperature t2, the control valve 6 is closed, and the operation of the heat exchanging part 2 is stopped.
At this time, the plate-shaped heat exchanging part 2 is the heat exchanging part 2, a mounting groove is formed on the plate-shaped heat exchanging part 2, and the connecting pipe 41 is arranged in the mounting groove; under the low temperature environment, the system operation temperature is higher, because the connecting pipe 41 area is less, adopt above-mentioned structure after, can guarantee that the connecting pipe 41 temperature maintains above first preset temperature t1, prevent effectively that the pipeline from freezing, lead to expansion tank 4 to become invalid. The requirement of outdoor installation can be met, and the user experience is improved.
According to the embodiment of the application, the air conditioner comprises the heat pump unit, and the heat pump unit is the heat pump unit.
According to an embodiment of the application, a control method of the anti-freezing device is provided, which comprises the following steps:
detecting the temperature t of a part to be prevented from freezing;
and controlling the on-off of the pipeline according to the temperature t.
The application also discloses some embodiments, and controlling the on-off of the pipeline according to the temperature t comprises the following steps:
when the temperature t is less than or equal to t1, the control pipeline is communicated; wherein t1 is a first preset temperature;
when the temperature t is not less than t2, the control pipeline is disconnected; wherein t2 is a second preset temperature; t1< t 2.
The first preset temperature t1 is the anti-freezing temperature; when the temperature of the part to be prevented from freezing is detected to be lower than the anti-freezing temperature, the control pipeline is communicated, so that the heated water enters the heat exchange part 2, and the hot water in the heat exchange part 2 exchanges heat with the part to be prevented from freezing, so that the temperature of the part to be prevented from freezing is increased, and an anti-freezing effect is achieved; when the temperature of the component to be prevented from freezing is higher than the second preset temperature t2, the control pipeline is disconnected and the heat exchanging part 2 stops operating.
Under the low temperature environment, through the judgement to conditions such as internal machine cavity ambient temperature and/or relevant pipeline temperature, the switch of control regulation electric ball valve realizes the circulation of system's hot water in the pipeline, under the effect of heat transfer portion 2, improves the bulk temperature of relevant cavity or components and parts, makes inside pipeline temperature be higher than a certain judgement value, guarantees that the inside disappearance of pipeline freezes the phenomenon, realizes whole frostproofing effect.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (11)
1. An antifreeze apparatus, comprising:
a heating section (1), the heating section (1) having a fluid outlet;
a portion to be protected from freezing;
the heat exchanging part (2), the heat exchanging part (2) is provided with a heat exchanging inlet; the heat exchange inlet is communicated with the fluid outlet through a pipeline; the pipeline is used for guiding the fluid heated by the heating part (1) to enter the heat exchanging part (2); the heat exchanging part (2) is used for exchanging heat between the fluid heated by the heating part (1) and the part to be prevented from freezing.
2. The antifreeze apparatus as set forth in claim 1, wherein said heating portion (1) has a fluid inlet; the heat exchanging part (2) is provided with a heat exchanging outlet; the heat exchange outlet is in communication with the fluid inlet.
3. Anti-freeze device according to claim 1, characterised in that it further comprises a control valve (6); the control valve (6) is used for controlling the on-off of the pipeline.
4. Anti-freeze arrangement according to claim 1, characterised in that it further comprises a temperature detection device (7); the temperature detection device (7) is used for detecting the temperature of the part to be prevented from freezing;
and/or the anti-freeze device further comprises a pump body (5); the pump body (5) comprises a pump body inlet and a pump body outlet; the pump body inlet is communicated with the fluid outlet; and the outlet of the pump body is communicated with the heat exchange inlet.
5. The antifreeze apparatus as set forth in claim 1, wherein the heat exchanging portion (2) has a size corresponding to that of the portion to be antifreeze;
and/or the position of the heat exchanging part (2) corresponds to the position of the part to be prevented from freezing.
6. A heat pump unit comprising an anti-freezing device, wherein the anti-freezing device is as claimed in any one of claims 1 to 5.
7. The heat pump unit of claim 6, wherein the heat pump unit comprises an indoor unit; the indoor unit is a part to be prevented from freezing; the indoor unit comprises a shell; the heat exchanging part (2) is arranged in the shell.
8. A heat pump unit according to claim 6, characterised in that when the anti-freeze device further comprises a pump body (5), the heat pump unit further comprises an expansion tank (4); the expansion tank (4) is connected with the pump body (5) through a connecting pipe (41); the connecting pipe (41) is a part to be prevented from freezing;
and/or, the heat pump unit also comprises a water flow switch (84); the water flow switch (84) is a part to be prevented from freezing.
9. An air conditioner comprising a heat pump unit, wherein the heat pump unit is according to any one of claims 6-8.
10. An antifreeze control method according to any one of claims 1 to 5, comprising the steps of:
detecting the temperature t of a part to be prevented from freezing;
and controlling the on-off of the pipeline according to the temperature t.
11. The antifreeze control method according to claim 10, wherein said controlling the opening/closing of the piping in accordance with said temperature t comprises the steps of:
when the temperature t is less than or equal to t1, controlling the pipeline to be communicated; wherein t1 is a first preset temperature;
and/or controlling the pipeline to be disconnected when the temperature t is not less than t 2; wherein t2 is a second preset temperature; t1< t 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305350.0A CN112460739A (en) | 2020-11-19 | 2020-11-19 | Anti-freezing device and control method thereof, heat pump unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305350.0A CN112460739A (en) | 2020-11-19 | 2020-11-19 | Anti-freezing device and control method thereof, heat pump unit and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112460739A true CN112460739A (en) | 2021-03-09 |
Family
ID=74837416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011305350.0A Pending CN112460739A (en) | 2020-11-19 | 2020-11-19 | Anti-freezing device and control method thereof, heat pump unit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112460739A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201852225U (en) * | 2010-11-15 | 2011-06-01 | 中山市格普斯纳米电热科技有限公司 | Air conditioner outdoor unit suitable for low-temperature environment |
| CN102187158A (en) * | 2008-08-25 | 2011-09-14 | 夏普株式会社 | Air conditioner |
| CN202813581U (en) * | 2012-07-20 | 2013-03-20 | 秦皇岛长丰太和新能源有限公司 | Improved household central air-conditioner anti-freeze heat pump unit system |
| CN103471210A (en) * | 2012-06-06 | 2013-12-25 | 苏州三星电子有限公司 | Water system air conditioner and anti-freezing system and anti-freezing method of air-conditioning system |
| CN205536530U (en) * | 2016-01-31 | 2016-08-31 | 佛山光腾新能源股份有限公司 | Prevent frostbite and split air source heat pump unit |
| CN207180025U (en) * | 2018-01-03 | 2018-04-03 | 艾欧史密斯(中国)热水器有限公司 | Teat pump boiler and combined type water heater |
| CN109357442A (en) * | 2018-12-14 | 2019-02-19 | 珠海格力电器股份有限公司 | Heat pump system and control method |
| CN110857818A (en) * | 2018-08-24 | 2020-03-03 | 约克广州空调冷冻设备有限公司 | Air conditioning system |
| CN211854320U (en) * | 2020-02-24 | 2020-11-03 | 山东特凌机电科技有限公司 | Water source heat pump air conditioning unit with low-temperature anti-freezing function |
-
2020
- 2020-11-19 CN CN202011305350.0A patent/CN112460739A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187158A (en) * | 2008-08-25 | 2011-09-14 | 夏普株式会社 | Air conditioner |
| CN201852225U (en) * | 2010-11-15 | 2011-06-01 | 中山市格普斯纳米电热科技有限公司 | Air conditioner outdoor unit suitable for low-temperature environment |
| CN103471210A (en) * | 2012-06-06 | 2013-12-25 | 苏州三星电子有限公司 | Water system air conditioner and anti-freezing system and anti-freezing method of air-conditioning system |
| CN202813581U (en) * | 2012-07-20 | 2013-03-20 | 秦皇岛长丰太和新能源有限公司 | Improved household central air-conditioner anti-freeze heat pump unit system |
| CN205536530U (en) * | 2016-01-31 | 2016-08-31 | 佛山光腾新能源股份有限公司 | Prevent frostbite and split air source heat pump unit |
| CN207180025U (en) * | 2018-01-03 | 2018-04-03 | 艾欧史密斯(中国)热水器有限公司 | Teat pump boiler and combined type water heater |
| CN110857818A (en) * | 2018-08-24 | 2020-03-03 | 约克广州空调冷冻设备有限公司 | Air conditioning system |
| CN109357442A (en) * | 2018-12-14 | 2019-02-19 | 珠海格力电器股份有限公司 | Heat pump system and control method |
| CN211854320U (en) * | 2020-02-24 | 2020-11-03 | 山东特凌机电科技有限公司 | Water source heat pump air conditioning unit with low-temperature anti-freezing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11162627B2 (en) | Controller, method of operating a water source heat pump and a water source heat pump | |
| CN101929760B (en) | Hot water air conditioner | |
| CN109357442A (en) | Heat pump system and control method | |
| CN105757827A (en) | Air conditioner, heat recovery system of air conditioner and heat recovery and defrosting method of air conditioner | |
| CN209246470U (en) | Heat pump system | |
| US10941965B2 (en) | System and method for providing supplemental heat to a refrigerant in an air-conditioner | |
| CN104165422A (en) | Water side heat exchange system, water source heat pump air conditioner and control method thereof | |
| CN112460739A (en) | Anti-freezing device and control method thereof, heat pump unit and air conditioner | |
| CN208296452U (en) | A kind of four seasons water cushion | |
| JP2004271102A (en) | Heat pump water heater | |
| JP4805715B2 (en) | Freezing prevention method for heat exchange coil of air conditioner, and heat exchange coil for freezing prevention | |
| CN212006303U (en) | Heat exchange device and air conditioning system | |
| CN110857818A (en) | Air conditioning system | |
| CN104034031A (en) | Heat pump water heater | |
| CN209944800U (en) | Automatic water replenishing system for heat pump unit | |
| CN210564750U (en) | Engine circulating water pipe, engine and vehicle | |
| CN111981684B (en) | Water heater, control method of water heater and storage medium | |
| WO2020168771A1 (en) | Automatic water replenishing system for heat pump unit and water replenishing method | |
| CN111365900A (en) | Heat exchange device and air conditioning system | |
| CN111365901A (en) | Heat exchange device and air conditioning system | |
| CN105333645B (en) | Heat pump unit | |
| JP3234427B2 (en) | Air conditioner | |
| CN216432164U (en) | Device for preventing water-containing refrigerant from diffusing after frost cracking of heat pump evaporator | |
| CN219714126U (en) | Energy supply device and energy supply system | |
| CN214891840U (en) | Water pump anti-freezing device of air conditioning unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |
|
| RJ01 | Rejection of invention patent application after publication |