CN106352416B - Dehumidification safe operation system of air conditioning unit for passive room - Google Patents
Dehumidification safe operation system of air conditioning unit for passive room Download PDFInfo
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- CN106352416B CN106352416B CN201610950947.8A CN201610950947A CN106352416B CN 106352416 B CN106352416 B CN 106352416B CN 201610950947 A CN201610950947 A CN 201610950947A CN 106352416 B CN106352416 B CN 106352416B
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- interface
- way valve
- heat exchanger
- valve
- indoor
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- 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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- 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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a dehumidification safe operation system of an air conditioning unit for a passive room, which comprises an outdoor unit system consisting of a compressor, a gas-liquid separator, a first four-way valve, a second four-way valve and an environment heat exchanger, and an indoor unit system consisting of an indoor heat exchanger, a heater, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a fifth one-way valve and a liquid storage device. The invention can meet the requirements of indoor temperature and humidity of users, ensure the safe and reliable operation of the unit, reduce the interference of human factors and realize the intelligent control operation.
Description
Technical Field
The invention relates to an air conditioning system, in particular to a dehumidification safe operation system of an air conditioning unit for a passive room.
Background
"Passive room" refers to an ecological building that requires substantially no active supply of energy. Because of high heat insulation and sealing performance, the annual refrigeration and heating consumes little primary energy, but because of season change and ventilation and air exchange, heat and humidity exchange exists and energy loss exists, so a passive house needs a set of equipment with active refrigeration, heating and dehumidification functions.
The air pipe type air conditioner produces cold air or hot air of the air conditioner according to the Carnot circulation principle, and then the cold air or the hot air is sent to each terminal device through the air supply module, so that the indoor temperature is adjusted.
Because of the difference of the seasonality and the requirement of a user on comfort, the indoor humidity needs to be adjusted timely, even the requirement of starting the air conditioner for dehumidification in a transition season exists, and the air conditioning unit is started in the transition season, the requirement of indoor actual cold load is very small, the low-temperature (or low-pressure) protection is very easy to cause when the unit is operated for dehumidification, and the system is damaged by freezing in severe cases, so that the unit cannot normally operate, if a set of dehumidification safe operation system for a passive room can be provided, different requirements of the client can be met, and the system is beneficial to development.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the dehumidification safe operation system of the air conditioning unit for the passive room, which can meet the requirements of indoor temperature and humidity of a user and reduce the interference of human factors.
According to the technical scheme provided by the invention, the dehumidification safe operation system of the air conditioning unit for the passive room comprises an outdoor unit system and an indoor unit system;
the outdoor unit system comprises a compressor, a gas-liquid separator, a first four-way valve, a second four-way valve and an environment heat exchanger; the first interface of the compressor is connected with the second interface of the second four-way valve, the second interface of the compressor is connected with the first interface of the gas-liquid separator, the second interface of the gas-liquid separator is connected with the third interface of the first four-way valve, the second interface of the first four-way valve is connected with the first interface of the environment heat exchanger, the first interface of the first four-way valve is connected between the first interface of the compressor and the second interface of the second four-way valve, the fourth interface of the second four-way valve is connected between the second interface of the gas-liquid separator and the third interface of the first four-way valve, and the first interface of the second four-way valve is grounded;
the indoor unit system comprises an indoor heat exchanger, a heater, a first check valve, a second check valve, a third check valve, a fourth check valve, a fifth check valve and a liquid storage device; the second interface of the heater is connected with the first interface of the third one-way valve, the second interface of the liquid storage device is connected with the first interface of the second one-way valve and the first interface of the fifth one-way valve in parallel, the second interface of the second one-way valve is connected with the second interface of the first one-way valve, the second interface of the fifth one-way valve is connected with the first interface of the fourth one-way valve, the second interface of the first one-way valve and the second interface of the third one-way valve are connected with the first interface of the liquid storage device in parallel, and the second interface of the indoor heat exchanger is connected between the second interface of the fifth one-way valve and the first interface of the fourth one-way valve;
the second interface of the environment heat exchanger is connected between the second interface of the second one-way valve and the first interface of the first one-way valve, the fourth interface of the first four-way valve is connected with the first interface of the indoor heat exchanger, and the third interface of the second four-way valve is connected with the first interface of the heater.
The compressor further comprises a pressure sensor, and the pressure sensor is installed between the second interface of the compressor and the first interface of the gas-liquid separator.
The throttling valve is installed between the second interface of the liquid storage device and the first interface of the fifth one-way valve.
The indoor heat exchanger further comprises a temperature detector, and the temperature detector is installed between the fourth interface of the first four-way valve and the first interface of the indoor heat exchanger.
One end of the electronic expansion valve is connected between the fourth interface of the first four-way valve and the first interface of the indoor heat exchanger, and the other end of the electronic expansion valve is connected between the third interface of the second four-way valve and the first interface of the heater.
The invention can meet the requirements of indoor temperature and humidity of users, ensure the safe and reliable operation of the unit, reduce the interference of human factors and realize intelligent control operation.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples.
As shown in fig. 1, the dehumidification safe operation system of the passive room air conditioning unit comprises an outdoor unit system and an indoor unit system;
the outdoor unit system comprises a compressor 1, a gas-liquid separator 2, a first four-way valve 3, a second four-way valve 4 and an environment heat exchanger 5; a first interface of the compressor 1 is connected with a second interface of the second four-way valve 4, a second interface of the compressor 1 is connected with a first interface of the gas-liquid separator 2, a second interface of the gas-liquid separator 2 is connected with a third interface of the first four-way valve 3, a second interface of the first four-way valve 3 is connected with a first interface of the environment heat exchanger 5, the first interface of the first four-way valve 3 is connected between the first interface of the compressor 1 and the second interface of the second four-way valve 4, a fourth interface of the second four-way valve 4 is connected between the second interface of the gas-liquid separator 2 and the third interface of the first four-way valve 3, and the first interface of the second four-way valve 4 is grounded;
the indoor unit system comprises an indoor heat exchanger 6, a heater 7, a first check valve 8, a second check valve 9, a third check valve 10, a fourth check valve 11, a fifth check valve 12 and a liquid storage device 13; a second interface of the heater 7 is connected with a first interface of a third one-way valve 10, a second interface of a liquid storage device 13 is connected in parallel with a first interface of a second one-way valve 9 and a first interface of a fifth one-way valve 12, a second interface of the second one-way valve 9 is connected with a second interface of a first one-way valve 8, a second interface of the fifth one-way valve 12 is connected with a first interface of a fourth one-way valve 11, a second interface of the first one-way valve 8 and a second interface of the third one-way valve 10 are connected in parallel with a first interface of the liquid storage device 13, and a second interface of the indoor heat exchanger 6 is connected between the second interface of the fifth one-way valve 12 and the first interface of the fourth one-way valve 11;
a second interface of the environment heat exchanger 5 is connected between a second interface of the second one-way valve 9 and a first interface of the first one-way valve 8, a fourth interface of the first four-way valve 3 is connected with a first interface of the indoor heat exchanger 6, and a third interface of the second four-way valve 4 is connected with a first interface of the heater 7.
A pressure sensor 16 is also included, the pressure sensor 16 being mounted between the second interface of the compressor 1 and the first interface of the gas-liquid separator 2.
A throttle valve 14 is also included, the throttle valve 14 being mounted between the second connection of the reservoir 13 and the first connection of the fifth non return valve 12.
And the temperature detector 17 is also included, and the temperature detector 17 is installed between the fourth interface of the first four-way valve 3 and the first interface of the indoor heat exchanger 6.
And the air conditioner further comprises an electronic expansion valve 15, wherein one end of the electronic expansion valve 15 is connected between the fourth interface of the first four-way valve 3 and the first interface of the indoor heat exchanger 6, and the other end of the electronic expansion valve 15 is connected between the third interface of the second four-way valve 4 and the first interface of the heater 7.
When refrigeration is required, a high-temperature and high-pressure refrigerant working medium discharged by a compressor 1 enters an environment heat exchanger 5 through a first four-way valve 3, is condensed, flows through a first one-way valve 8 through a connecting copper pipe, enters a liquid storage device 13, is throttled by a throttle valve 14, enters an indoor heat exchanger 6 through a fourth one-way valve 12 to be evaporated, absorbs heat of indoor air, enters a gas-liquid separator 2 through the connecting copper pipe and the first four-way valve 3, finally returns to the compressor, is circulated continuously in such a way, so that the indoor air is cooled, and the unit enters a standby state after a set value is reached;
when a heating demand exists, a high-temperature and high-pressure refrigerant working medium discharged by the compressor 1 enters the indoor heat exchanger 6 through the first four-way valve 3 and the connecting copper pipe to condense and release heat to indoor air, then enters the liquid reservoir 13 through the fourth one-way valve 11, is throttled by the throttle valve 14, then enters the environmental heat exchanger 5 through the connecting copper pipe to evaporate through the second one-way valve 9, absorbs the heat of the environmental air, then enters the gas-liquid separator 2 through the first four-way valve 3, and finally returns to the compressor, so that the circulation is continuously performed, the temperature rise of the indoor air is realized, and the unit enters a standby state after a set value is reached;
when dehumidification is required, a high-temperature and high-pressure refrigerant working medium discharged by the compressor 1 is divided into two paths, one path of working medium enters the environment heat exchanger 5 through the first four-way valve 3, is condensed and then enters the liquid storage device 13 through the connecting copper pipe and the first one-way valve 8, the other path of working medium enters the heater 7 through the second four-way valve 4, is condensed and released heat and then enters the liquid storage device through the third one-way valve 10, the two paths of working medium are mixed, are throttled by the throttle valve 14 and then enter the indoor heat exchanger 6 through the fifth one-way valve 12 for evaporation and dehumidification, absorb heat of indoor air, then enter the gas-liquid separator 2 through the connecting copper pipe and the first four-way valve 3, and finally return to the compressor, and the cycle is continuous. The flow direction of the indoor circulating air firstly passes through the indoor heat exchanger 6 and then passes through the heater 7, namely the indoor circulating air is cooled, dehumidified and heated firstly, the temperature of the indoor circulating air is ensured to be the same or less different when the temperature of the indoor circulating air enters and exits from the indoor unit, and the unit enters a standby state after the temperature of the indoor circulating air reaches a dehumidification set value;
when the dehumidification mode is operated in a transition season, the actual demand of indoor air on cold load is small, low-temperature or low-pressure protection is easily caused when the unit operates for dehumidification, when the temperature detection device detects that the temperature of the coil pipe of the indoor heat exchanger is lower than a set value within a certain range, the unit control unit sends an instruction, the electronic expansion valve 15 is opened to a certain position and according to the opening degree of the feedback adjusting valve, the refrigerant working medium coming from the second four-way valve 4 is divided into two paths, one path of the refrigerant working medium is mixed with the refrigerant working medium flowing out of the indoor heat exchanger after passing through the electronic expansion valve, enters the gas-liquid separator 2 through the connecting copper pipe and the first four-way valve 3 and returns to the compressor, the other path of the refrigerant working medium is condensed by the heater 7 to release heat and then enters the liquid reservoir after being mixed with the refrigerant working medium flowing through the first one-way valve 8, then enters the liquid reservoir after being throttled by the throttle valve 14 and then enters the indoor heat exchanger for evaporation and dehumidification, when the temperature detection device detects that the temperature of the coil pipe of the indoor heat exchanger is higher than the set value within the certain range and the pressure sensor 16 detects that the system operates When the pressure is higher than a certain set value, the pressure sensor 16 is closed, and the normal dehumidification mode is entered.
Claims (1)
1. The utility model provides an air conditioning unit dehumidification safe operation system for passive room which characterized by: the system comprises an outdoor unit system and an indoor unit system;
the outdoor unit system comprises a compressor (1), a gas-liquid separator (2), a first four-way valve (3), a second four-way valve (4) and an environment heat exchanger (5); a first interface of the compressor (1) is connected with a second interface of the second four-way valve (4), a second interface of the compressor (1) is connected with a first interface of the gas-liquid separator (2), a second interface of the gas-liquid separator (2) is connected with a third interface of the first four-way valve (3), a second interface of the first four-way valve (3) is connected with a first interface of the environment heat exchanger (5), a first interface of the first four-way valve (3) is connected between the first interface of the compressor (1) and the second interface of the second four-way valve (4), a fourth interface of the second four-way valve (4) is connected between the second interface of the gas-liquid separator (2) and the third interface of the first four-way valve (3), and a first interface of the second four-way valve (4) is grounded;
the indoor unit system comprises an indoor heat exchanger (6), a heater (7), a first one-way valve (8), a second one-way valve (9), a third one-way valve (10), a fourth one-way valve (11), a fifth one-way valve (12) and a liquid storage device (13); a second interface of the heater (7) is connected with a first interface of a third one-way valve (10), a second interface of the liquid storage device (13) is connected in parallel with a first interface of a second one-way valve (9) and a first interface of a fifth one-way valve (12), a second interface of the second one-way valve (9) is connected with a second interface of the first one-way valve (8), a second interface of the fifth one-way valve (12) is connected with a first interface of a fourth one-way valve (11), a second interface of the first one-way valve (8) and a second interface of the third one-way valve (10) are connected in parallel with a first interface of the liquid storage device (13), and a second interface of the indoor heat exchanger (6) is connected between the second interface of the fifth one-way valve (12) and the first interface of the fourth one-way valve (11);
a second interface of the environment heat exchanger (5) is connected between a second interface of a second one-way valve (9) and a first interface of a first one-way valve (8), a fourth interface of the first four-way valve (3) is connected with a first interface of the indoor heat exchanger (6), and a third interface of the second four-way valve (4) is connected with a first interface of the heater (7);
the device also comprises a throttle valve (14), an electronic expansion valve (15), a pressure sensor (16) and a temperature detector (17);
the throttle valve (14) is arranged between the second interface of the liquid storage device (13) and the first interface of the fifth one-way valve (12);
one end of the electronic expansion valve (15) is connected between a fourth interface of the first four-way valve (3) and a first interface of the indoor heat exchanger (6), and the other end of the electronic expansion valve (15) is connected between a third interface of the second four-way valve (4) and a first interface of the heater (7);
the pressure sensor (16) is arranged between the second interface of the compressor (1) and the first interface of the gas-liquid separator (2);
and the temperature detector (17) is arranged between the fourth interface of the first four-way valve (3) and the first interface of the indoor heat exchanger (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950947.8A CN106352416B (en) | 2016-11-02 | 2016-11-02 | Dehumidification safe operation system of air conditioning unit for passive room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950947.8A CN106352416B (en) | 2016-11-02 | 2016-11-02 | Dehumidification safe operation system of air conditioning unit for passive room |
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| Publication Number | Publication Date |
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| CN106352416A CN106352416A (en) | 2017-01-25 |
| CN106352416B true CN106352416B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610950947.8A Active CN106352416B (en) | 2016-11-02 | 2016-11-02 | Dehumidification safe operation system of air conditioning unit for passive room |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167990A (en) * | 2018-02-09 | 2018-06-15 | 无锡同方人工环境有限公司 | Passive room monoblock type fresh air conditioner dehumidifying integrated machine |
| CN108775725B (en) * | 2018-05-21 | 2020-12-15 | 广东美的暖通设备有限公司 | Indoor unit of three-pipe multi-split air conditioner and three-pipe multi-split air conditioner |
| CN114278984B (en) * | 2021-12-14 | 2023-05-23 | 广东芬尼克兹节能设备有限公司 | Multifunctional air conditioner, control method and computer readable storage medium |
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| JPS61175433A (en) * | 1985-01-31 | 1986-08-07 | Matsushita Electric Ind Co Ltd | Operation control device of air conditioner |
| CN2687551Y (en) * | 2004-01-19 | 2005-03-23 | 熊晓强 | Air conditioner |
| CN102338500A (en) * | 2010-07-15 | 2012-02-01 | 同方人工环境有限公司 | Air-conditioning heat pump ventilation system with refrigerating, heating, domestic hot water supply and fresh air supply functions |
| CN103512093A (en) * | 2013-10-11 | 2014-01-15 | 无锡同方人工环境有限公司 | Air-conditioning unit with independent dehumidification function for ultralow-energy-consumption house |
| CN206176548U (en) * | 2016-11-02 | 2017-05-17 | 无锡同方人工环境有限公司 | Passive air conditioning unit dehumidification safe operation system for room |
-
2016
- 2016-11-02 CN CN201610950947.8A patent/CN106352416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61175433A (en) * | 1985-01-31 | 1986-08-07 | Matsushita Electric Ind Co Ltd | Operation control device of air conditioner |
| CN2687551Y (en) * | 2004-01-19 | 2005-03-23 | 熊晓强 | Air conditioner |
| CN102338500A (en) * | 2010-07-15 | 2012-02-01 | 同方人工环境有限公司 | Air-conditioning heat pump ventilation system with refrigerating, heating, domestic hot water supply and fresh air supply functions |
| CN103512093A (en) * | 2013-10-11 | 2014-01-15 | 无锡同方人工环境有限公司 | Air-conditioning unit with independent dehumidification function for ultralow-energy-consumption house |
| CN206176548U (en) * | 2016-11-02 | 2017-05-17 | 无锡同方人工环境有限公司 | Passive air conditioning unit dehumidification safe operation system for room |
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| CN106352416A (en) | 2017-01-25 |
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