CN205156138U - Special air conditioner of computer lab with condensate recovery function - Google Patents

Abstract

The utility model discloses a special air conditioner for machine rooms with the function of recovering condensed water. The first heat exchanger (2), the compressor (1), the second heat exchanger (7), and the throttling device (4) are sequentially arranged from the beginning to the end. connected to form a working medium circulation path, characterized in that a water pan (5) for collecting condensed water is provided at the bottom of the first heat exchanger; the special air conditioner for computer rooms with condensed water recovery function also includes a water storage device ( 6), the water pump (9) and the spraying system (11) used for cooling the second heat exchanger; the water pan, the water storage device, the water pump and the spraying system are connected in sequence. A valve (10) is provided between the spray system and the outlet of the water pump. The valve is a three-way valve, one port of the three-way valve is connected to the condensed water drain, and the other two ports are respectively connected to the outlet of the water pump and the water supply port of the sprinkler system. The computer room special air conditioner with condensed water recovery function has a condensed water recovery mechanism, which is energy-saving and environmentally friendly.

Description

A special air conditioner for computer room with condensed water recovery function

technical field

The utility model relates to a special air conditioner for a computer room with the function of recovering condensed water.

Background technique

With the rapid development of China's communications industry and the continuous expansion of the scale of communications networks, the energy consumption of dedicated air conditioners in communications equipment rooms has increased dramatically. In addition, in order to ensure the safe and stable transmission of communication signals, the air conditioning system in the communication room is required to run uninterrupted throughout the year; in special occasions, the air conditioner is also required to operate under dry conditions.

At present, in order to reduce the energy consumption of the air conditioning system in the communication room, the commonly used energy-saving air conditioners include direct introduction of fresh air energy-saving systems, plate-type isolated air heat exchange systems, and heat pipe energy-saving systems. Although the fresh air energy-saving system directly introduced has a simple structure and a small volume, it requires frequent replacement of filters, which is expensive and cannot guarantee the humidity requirements in the machine room. The plate-type isolated air heat exchange system has a large volume due to the small heat transfer per unit, and is mainly used in a large computer room; although the heat pipe energy-saving system has a simple structure and can directly use the natural cooling source, but the cycle of using the natural cooling source It is determined by the temperature difference between indoor and outdoor. When a certain temperature difference between indoor and outdoor is not reached, the traditional compression refrigeration system is still used.

The energy-saving systems mentioned above are auxiliary equipment for the air conditioner in the computer room. Auxiliary equipment is added to the original air conditioning system in the communication room, and the temperature in the computer room is reduced by relying on the natural cooling capacity of the outdoor environment. When there is no natural cooling capacity outside, the air conditioner in the computer room is required to run. However, the existing air conditioners for computer rooms have large energy consumption and low thermal efficiency. Therefore, it is necessary to design a special air conditioner for computer rooms with remarkable energy-saving effect.

Utility model content

The technical problem to be solved by the utility model is to provide a machine room special air conditioner with condensed water recovery function. The machine room special air conditioner with condensed water recovery function has a condensed water recovery mechanism, which is energy-saving and environment-friendly.

The technical solution of the utility model is as follows:

A special air conditioner with condensed water recovery function, the first heat exchanger (2), the compressor (1), the second heat exchanger (7), and the throttling device (4) are connected end to end in order to form a working fluid cycle passage, which is characterized in that a water pan (5) for collecting condensed water is provided at the bottom of the first heat exchanger; the special air conditioner with condensed water recovery function also includes a water storage device (6), a water pump ( 9) and the spray system (11) used for cooling the second heat exchanger; the water tray, water storage device, water pump and spray system are connected in sequence;

The first heat exchanger is provided with a first fan (3); the second heat exchanger is provided with a second fan (8).

The first heat exchanger and the first fan are located indoors, and the second heat exchanger and the second fan are located outdoors.

A valve (10) is provided between the spray system and the outlet of the water pump. It can be an ordinary solenoid valve.

The valve is a three-way valve, one port of the three-way valve is connected to the condensed water drain, and the other two ports are respectively connected to the outlet of the water pump and the water supply port of the sprinkler system.

The computer room air conditioner with condensed water recovery function also includes a controller, an outdoor temperature sensor and a water level sensor; the water level sensor is arranged in the water storage device; the outdoor temperature sensor and the water level sensor are connected to the controller; the spray system and The valves are controlled by the controller.

The first heat exchanger adopts a micro-channel heat exchanger with large heat exchange area and small resistance.

The first fan (3) is an axial fan, a centrifugal fan or an EC fan.

The water storage device is an automatic water storage device including a water tank and an automatic control valve for controlling the application of condensed water.

The second heat exchanger adopts a micro-channel heat exchanger with large heat exchange area and small resistance.

The second fan (8) adopts an axial flow fan or a medium pressure fan.

The water pump (9) is installed in the outdoor unit, controlled by the water level of the automatic water storage device and the outdoor temperature sensor, and provides power for the flow of condensed water.

The valve is an electric three-way, the opening state of the valve is controlled according to the water level of the automatic water storage device and the outdoor temperature sensor, and the flow direction of the condensed water is controlled.

The spraying system is installed directly above the second heat exchanger of the outdoor unit for cooling the condenser.

Described controller adopts analog control circuit or digital control circuit to realize, and described digital control circuit preferably adopts devices such as single-chip microcomputer, DSP, the realization of controller and its control process is existing mature technology, does not involve any method and program.

The second heat exchanger and the second fan are located outdoors, and the first heat exchanger and the first fan are located indoors.

The first heat exchanger is an evaporator, and the second heat exchanger is a condenser.

Beneficial effect:

The special air conditioner for machine room with condensed water recovery function of the utility model can pressurize and spray the condensed water generated during the cooling operation of the indoor unit system onto the condenser of the outdoor unit, thereby reducing the working temperature of the condenser and improving the efficiency of the refrigeration system. High operating efficiency, greatly reducing the cooling energy consumption of the air conditioner in the computer room.

Compared with the existing technology, the utility model patent has remarkable energy-saving effect. This kind of air conditioner directly uses the condensed water produced during the cooling operation of the air conditioner to cool the outdoor unit condenser, sprays the condensed water onto the outdoor condenser, and takes away the heat of the condenser through the evaporation of water, reducing the heat loss of the condenser in the refrigeration cycle. operating temperature, thereby reducing the operating energy consumption of the refrigeration system.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a dedicated air conditioner with a condensed water recovery function;

Figure 2 is a schematic diagram of the indoor unit system;

Figure 3 is a schematic diagram of the outdoor unit system;

Figure 4 is a block diagram of the control system.

Explanation of symbols: 1-compressor, 2-first heat exchanger, 3-first fan, 4-throttling device, 5-water pan, 6-water storage device, 7-second heat exchanger, 8-the first Two fans, 9-water pump, 10-valve, 11-spray system, 12-controller.

detailed description

The utility model will be described in further detail below in conjunction with accompanying drawing and specific embodiment:

Example 1:

As shown in Figure 1-4, a special air conditioner with condensed water recovery function, the first heat exchanger 2, the compressor 1, the second heat exchanger 7, and the throttling device 4 are connected end to end in order to form a working fluid circulation path. It is characterized in that a water pan 5 for collecting condensed water is provided at the bottom of the first heat exchanger; the special air conditioner for machine room with condensed water recovery function also includes a water storage device 6, a water pump 9 and a water storage device for the second The spraying system 11 for the cooling of the heat exchanger; the water tray, the water storage device, the water pump and the spraying system are connected in sequence.

A valve 10 is provided between the spray system and the outlet of the water pump.

The valve is a three-way valve, one port of the three-way valve is connected to the condensed water drain, and the other two ports are respectively connected to the outlet of the water pump and the water supply port of the sprinkler system.

The first heat exchanger is provided with a first blower 3; the second heat exchanger is provided with a second blower 8, the first heat exchanger and the first blower are indoors, and the second heat exchanger and The second blower is outside.

The computer room air conditioner with condensed water recovery function also includes a controller, an outdoor temperature sensor and a water level sensor; the water level sensor is arranged in the water storage device; the outdoor temperature sensor and the water level sensor are connected to the controller; the spray system and The valves are controlled by the controller.

The utility model patent can reduce the operating energy consumption of the special air conditioner in the computer room without adding other additional equipment, which reduces the energy consumption of the refrigeration system in the computer room and does not increase the investment of the refrigeration system too much. It uses the condensed water generated during the operation of the refrigeration system to reduce the operating temperature of the outdoor unit condenser, sprays the condensed water on the condenser, and takes away the heat generated by the condenser through the evaporation of water, greatly reducing the operating temperature of the condenser. In order to improve the operating efficiency of the refrigeration system and reduce the energy consumption of the refrigeration system; in addition, the automatic collection and control of the circulation of condensed water through the automatic water storage device reduces the risk of leakage of condensed water in the computer room. According to the height of the water level and the indoor and outdoor temperature and humidity parameters Adjust the flow direction of condensed water to ensure the safety of the air conditioner in the computer room and reduce the energy consumption of the refrigeration system.

The working conditions of the utility model patent are divided into three working conditions, which are respectively refrigeration working conditions, condensed water spray cooling working conditions, and condensed water emptying working conditions.

Refrigeration working condition: The refrigerating working condition is realized through the compressor, the first heat exchanger, the first fan, the throttling device, the second heat exchanger and the second fan, etc. The refrigerant circulates in the refrigeration pipeline to form a complete closed system. The refrigerant circulates in fluid form in this closed refrigeration system, and through phase change, it continuously absorbs heat from the first heat exchanger and releases heat in the second heat exchanger, thereby achieving the purpose of refrigeration.

Condensed water spray cooling working condition: when the refrigeration system generates enough condensed water, the detection signals of the outdoor temperature sensor and water level sensor are transmitted to the central controller. When the outdoor temperature is greater than 18°C and the condensed water level is greater than the set value, the pump is turned on , Electric tee and spray system, spray condensed water to the condenser of the outdoor unit, reduce the working temperature of the condenser, and reduce the energy consumption of the refrigeration system.

Condensed water emptying condition: When the refrigeration system generates enough condensed water, the detection signals of the outdoor temperature sensor and water level sensor are transmitted to the central controller. When the outdoor temperature is lower than 18°C and the condensed water level is greater than the set value, the water pump is turned on And the electric tee, drain the condensed water to the outside, reducing the risk of indoor condensed water leakage.

The utility model patent automatically reduces the operating energy consumption of the special air conditioner in the machine room according to the operating conditions of the refrigeration system, and uses the condensed water generated during the operation of the refrigeration system to reduce the operating temperature of the outdoor unit condenser, and sprays the condensed water on the condenser. The heat generated by the condenser is taken away by the evaporation of water, which greatly reduces the operating temperature of the condenser, thereby improving the operating efficiency of the refrigeration system and reducing the energy consumption of the refrigeration system; this utility model patent eliminates the potential safety hazards of condensed water in the machine room Become an energy-saving measure for system operation, turn the shortcomings of the refrigeration system into advantages, ensure the safe and stable operation of the refrigeration system, and reduce the energy consumption of the refrigeration system.

Claims (4)

1. the special air conditioning for device room with condensing hot air furnace function, First Heat Exchanger (2), compressor (1), the second heat exchanger (7), throttling arrangement (4) head and the tail are connected to form working medium circulation path successively, it is characterized in that, bottom First Heat Exchanger, be provided with the water pond (5) for gathering condensed water; The described special air conditioning for device room with condensing hot air furnace function also comprises water storage device (6), water pump (9) and the spray system (11) for lowering the temperature for the second heat exchanger; Water pond, water storage device, water pump are connected successively with spray system;

Described First Heat Exchanger place is provided with the first blower fan (3); The second described heat exchanger place is provided with the second blower fan (8);

First Heat Exchanger and the first blower fan are in indoor, and the second heat exchanger and the second blower fan are in outdoor.

2. the special air conditioning for device room with condensing hot air furnace function according to claim 1, is characterized in that, is provided with valve (10) between spray system and exit of pump.

3. the special air conditioning for device room with condensing hot air furnace function according to claim 2, it is characterized in that, described valve is triple valve, and 1 port of triple valve connects as condensate water discharging mouth, the feed water inlet of other 2 ports difference water pump outlet and spray system.

4. the special air conditioning for device room with condensing hot air furnace function according to any one of claim 1-3, is characterized in that, also comprises controller, outdoor temperature sensor and level sensor; Level sensor is arranged in water storage device; Outdoor temperature sensor is all connected with controller with level sensor; Spray system and valve are all controlled by controller.