A composite data center refrigeration and waste heat recovery system

Abstract

The utility model relates to data center technical field, concretely relates to a composite data center refrigeration and waste heat recovery system, including refrigeration plant, water storage tank, exhaust heat recovery ware, return air heat recovery ware and recovery pipeline, the composite data center refrigeration and waste heat recovery system still includes return air passage, return air heat recovery ware is located in return air passage, exhaust heat recovery ware is used for heat transfer with recovery pipeline and refrigeration plant, the both ends of recovery pipeline are connected with water storage tank respectively, the utility model discloses through setting return air heat recovery ware, first through return air heat recovery ware, through the high temperature return air of data center first gives the liquid of recovery pipeline first heating, then again through exhaust heat recovery ware and carries out secondary heating, can fully recover the waste heat of refrigeration plant and the high temperature return air of data center, and can reduce the refrigeration load and energy consumption of refrigeration plant.

Claims

1. A hybrid data center refrigeration and waste heat recovery system, characterized by: It includes refrigeration equipment, water storage tank (1), exhaust heat recovery unit (2), return air heat recovery unit (3), and recovery pipeline; The composite data center cooling and waste heat recovery system also includes a return air duct (4); the return air heat recovery unit (3) is located in the return air duct (4); the exhaust heat recovery unit (2) is used to transfer heat between the recovery pipeline and the cooling equipment; both ends of the recovery pipeline are connected to the water storage tank (1); The recovery pipeline is equipped with a first solenoid valve (51); the return air heat recovery unit (3) is connected in parallel with the first solenoid valve (51); and a recovery solenoid valve is provided between the return air heat recovery unit (3) and the recovery pipeline.

2. The hybrid data center cooling and waste heat recovery system of claim 1, wherein: The recovery pipeline includes an inlet pipeline (61) and an outlet pipeline (62); one end of the inlet pipeline (61) is connected to the water storage tank (1); the other end of the inlet pipeline (61) is connected to one end of the outlet pipeline (62) after passing through the exhaust heat recovery device (2); the other end of the outlet pipeline (62) is connected to the water storage tank (1); the recovery solenoid valve includes a second solenoid valve (52) and a third solenoid valve (53); The first solenoid valve (51) is located in the water inlet pipe (61); the second solenoid valve (52) is located between the water inlet end of the return air heat recovery unit (3) and the water inlet pipe (61); the third solenoid valve (53) is located between the water outlet end of the return air heat recovery unit (3) and the water inlet pipe (61).

3. The hybrid data center cooling and waste heat recovery system of claim 2, wherein: The water inlet pipe (61) is equipped with a heat recovery water pump (63); the heat recovery water pump (63) is located between the first solenoid valve (51) and the water storage tank (1) and between the second solenoid valve (52) and the water storage tank (1).

4. The hybrid data center cooling and waste heat recovery system of claim 2, wherein: The exhaust heat recovery unit (2) includes a first heat exchange channel (21) and a second heat exchange channel (22); the other end of the water inlet pipe (61) is connected to one end of the water outlet pipe (62) after passing through the first heat exchange channel (21); The refrigeration equipment includes a compressor (71) and a condenser (74); the second heat exchange channel (22) is located between the compressor (71) and the condenser (74).

5. The composite data center cooling and waste heat recovery system according to claim 4, characterized in that: The refrigeration equipment also includes an evaporator (72) and an expansion valve (73); the compressor (71), evaporator (72), expansion valve (73), condenser (74) and second heat exchange channel (22) are connected end to end in sequence.

6. The hybrid data center cooling and waste heat recovery system of claim 5, wherein: The return air duct (4) is equipped with a return air fan (75).

7. The hybrid data center cooling and waste heat recovery system of claim 6, wherein: The evaporator (72) is located in the return air duct (4); the evaporator (72) is located between the return air fan (75) and the return air heat recovery unit (3).

8. The hybrid data center cooling and waste heat recovery system of claim 1, wherein: The composite data center cooling and waste heat recovery system also includes a heating pipeline (81) connected to the water storage tank (1); the heating pipeline (81) is equipped with a hot water pump (82).

9. The hybrid data center cooling and waste heat recovery system of claim 3, wherein: The outlet of the heat recovery water pump (63) is equipped with a temperature sensor; the first solenoid valve (51), the second solenoid valve (52) and the third solenoid valve (53) are electrically connected to the temperature sensor respectively.

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