CN-122015327-A - Energy-saving air conditioning system and method for animal laboratory

Abstract

The invention relates to the technical field of air conditioning systems, and discloses an energy-saving air conditioning system and a method for an animal laboratory, wherein a refrigerant circulation loop comprises a compressor, a high-temperature heat exchanger and a low-temperature heat exchanger which are sequentially arranged, and a wind side heat exchanger is arranged between the high-temperature heat exchanger and the low-temperature heat exchanger; the fresh air cooling circulation loop is formed by the fresh air processing unit and the low-temperature heat exchanger, and the fresh air heating circulation loop is formed by the hot water pipeline and the high-temperature heat exchanger, so that the fresh air cooling circulation loop can supply cold and heat to the fresh air processing unit simultaneously, an air inlet and an air outlet of a laboratory are respectively connected with the fresh air processing unit and the air side heat exchanger, and the air exhaust of the laboratory is utilized to realize the supercooling of the refrigerant.

Inventors

• WANG ZUOLIN
• QIU WEIQI

Assignees

• 青岛中弘数字技术有限公司

Dates

Publication Date

20260512

Application Date

20260315

Claims (10)

1. 1. An energy-saving air conditioning system for an animal laboratory, comprising: the refrigerant circulation loop comprises a compressor, a high-temperature heat exchanger and a low-temperature heat exchanger which are sequentially arranged, and a wind side heat exchanger is arranged between the high-temperature heat exchanger and the low-temperature heat exchanger; The fresh air supply and cooling circulation loop is formed by the fresh air processing unit through a cold water pipeline and the low-temperature heat exchanger, and the fresh air heating circulation loop is also formed by the hot water pipeline and the high-temperature heat exchanger, so that the simultaneous cooling and heating of the fresh air processing unit through the refrigerant circulation loop is realized; the air inlet and the air outlet of the laboratory are respectively connected with the fresh air handling unit and the air side heat exchanger, and the cooling of the refrigerant is realized by using the exhaust air of the laboratory.
2. 2. The energy-saving air conditioning system for animal laboratory of claim 1, wherein a first electronic expansion valve is arranged between the high-temperature heat exchanger and the wind side heat exchanger; The second electronic expansion valve is arranged between the wind side heat exchanger and the low temperature heat exchanger, and the flow, the pressure and the heat exchange state of the refrigerant in the wind side heat exchanger are controlled through the cooperative adjustment of the first electronic expansion valve and the second electronic expansion valve.
3. 3. The energy-saving air conditioning system of an animal laboratory according to claim 1, wherein the fresh air handling unit is provided with a cooling coil section and a heating coil section in sequence from an air inlet to an air outlet from inside; The cooling coil section is integrated on the fresh air cooling circulation loop, and the heating coil section is integrated on the fresh air heating circulation loop.
4. 4. The energy-saving air conditioning system for animal laboratory according to claim 3, wherein the cold water pipe of the fresh air cooling circulation loop is provided with a cold water pump and a cold water valve.
5. 5. The energy-saving air conditioning system for animal laboratory of claim 4, wherein the hot water pipe of the fresh air heating circulation loop is provided with a hot water pump and a hot water valve.
6. 6. The energy-saving air conditioning system for animal laboratory of claim 5, wherein the hot water valve and the cold water valve are adjusted in combination to maintain the temperature and humidity of the fresh air handling unit in a normal range.
7. 7. The energy-saving air conditioning system for the animal laboratory of claim 6, wherein the air outlet of the fresh air handling unit is provided with a humidity sensor, and the energy-saving air conditioning system is further provided with a controller for controlling the operation of the system.
8. 8. The energy-saving air conditioning system of an animal laboratory according to claim 1, wherein the air inlet of the laboratory is connected with the air outlet of the fresh air handling unit through a fresh air pipeline.
9. 9. The energy-saving air conditioning system for animal laboratory according to claim 8, wherein the air outlet of the laboratory is connected with the wind side heat exchanger through an air exhaust pipe, and absorbs heat of the refrigerant at the heat exchange coil of the wind side heat exchanger and then discharges the heat to the atmosphere.
10. 10. A working method of an energy-saving air conditioning system of an animal laboratory, characterized in that the energy-saving air conditioning system according to any one of claims 1 to 9 is adopted, comprising the following steps: The compressor in the refrigerant circulation loop drives the refrigerant to circulate, and the refrigerant respectively exchanges heat at the high-temperature heat exchanger and absorbs heat at the low-temperature heat exchanger; The outdoor fresh air is cooled, dehumidified and then heated, and enters a laboratory after reaching an air supply state point, and the laboratory is exhausted into an air side heat exchanger to further cool the refrigerant and improve the supercooling degree of the refrigerant.

Description

Energy-saving air conditioning system and method for animal laboratory Technical Field The invention relates to the technical field of air conditioning systems, in particular to an energy-saving air conditioning system and method for an animal laboratory. Background With the development of industries such as biological medicine, the construction of animal laboratories is more and more widespread, and in order to meet the special requirements of the animal laboratories on parameters such as environmental temperature, humidity, fresh air quantity and the like, the air conditioning systems of the animal laboratories have huge energy consumption. How to reduce the energy consumption of an air conditioning system becomes an industry problem under the condition of ensuring that the environmental requirements of animal laboratories are met. Conventional fresh air handling systems typically employ separate cooling systems and separate heating systems. The cooling system cools and dehumidifies fresh air through refrigeration cycle, the condensation heat of the cooling system is directly discharged to the outside, and the heating system independently heats fresh air through electric heating or other heat sources. In this way, the cooling and heating consume energy respectively, resulting in high energy consumption and low energy utilization rate of the whole system. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide an energy-saving air conditioning system and method for an animal laboratory, which solve the problems of independent cold and hot, high energy consumption and low energy utilization rate of the traditional system. In order to achieve the above object, the present invention is realized by the following technical scheme: In a first aspect, an energy-saving air conditioning system for an animal laboratory, comprising: the refrigerant circulation loop comprises a compressor, a high-temperature heat exchanger and a low-temperature heat exchanger which are sequentially arranged, and a wind side heat exchanger is arranged between the high-temperature heat exchanger and the low-temperature heat exchanger; The fresh air supply and cooling circulation loop is formed by the fresh air processing unit through a cold water pipeline and the low-temperature heat exchanger, and the fresh air heating circulation loop is also formed by the hot water pipeline and the high-temperature heat exchanger, so that the simultaneous cooling and heating of the fresh air processing unit through the refrigerant circulation loop is realized; the air inlet and the air outlet of the laboratory are respectively connected with the fresh air handling unit and the air side heat exchanger, and the cooling of the refrigerant is realized by using the exhaust air of the laboratory. As a further implementation manner, a first electronic expansion valve is arranged between the high-temperature heat exchanger and the wind side heat exchanger; The second electronic expansion valve is arranged between the wind side heat exchanger and the low temperature heat exchanger, and the flow, the pressure and the heat exchange state of the refrigerant in the wind side heat exchanger are controlled through the cooperative adjustment of the first electronic expansion valve and the second electronic expansion valve. As a further implementation mode, the full fresh air handling unit is sequentially provided with a cooling coil section and a heating coil section from an air inlet to an air outlet from inside; The cooling coil section is integrated on the fresh air cooling circulation loop, and the heating coil section is integrated on the fresh air heating circulation loop. As a further implementation mode, a cold water pump and a cold water valve are arranged on a cold water pipeline of the fresh air cold supply circulation loop. As a further implementation mode, a hot water pump and a hot water valve are arranged on a hot water pipeline of the fresh air heating circulation loop. As a further implementation mode, the hot water valve and the cold water valve are adjusted in a combined mode, and the air outlet temperature and the humidity of the fresh air handling unit are maintained in a normal range. As a further implementation mode, a humidity sensor is arranged at the air outlet of the fresh air handling unit, and the energy-saving air conditioning system is further provided with a controller for controlling the system to operate. As a further implementation mode, an air inlet of the laboratory is connected with an air outlet of the fresh air treatment unit through a fresh air pipeline. As a further implementation mode, an air outlet of the laboratory is connected with the wind side heat exchanger through an exhaust pipeline, and the heat of the refrigerant is absorbed at a heat exchange coil of the wind side heat exchanger and then discharged to the atmosphere. In a second aspect, a working method of an energy-