Cooling system, control method thereof and equipment room

Abstract

A cooling system includes a buried heat exchange unit ( 301 ), a first air-liquid heat exchanger ( 302 ), a second air-liquid heat exchanger ( 303 ), a control device ( 304 ), a fluid conveying device ( 305 ), and connecting pipes ( 307 ). A control method applicable to the cooling system includes: acquiring environment information, where the environment information includes at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes; and controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, where a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline. An equipment room using the cooling system is also provided.

1 . A cooling system, applied to an equipment room, and comprising a first air-liquid heat exchanger, a second air-liquid heat exchanger, a buried heat exchange unit, a control device, a fluid conveying device, and connecting pipes, wherein the first air-liquid heat exchanger is disposed in the equipment room, the second air-liquid heat exchanger is disposed outside the equipment room, the buried heat exchange unit is buried underground, and the second air-liquid heat exchanger and the buried heat exchange unit are connected by the connecting pipes to the first air-liquid heat exchanger to form at least two circulation pipelines; and
 the control device is configured to acquire environment information, and control at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline, and the environment information comprises at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes.   
     
     
         2 . The system according to  claim 1 , wherein the first air-liquid heat exchanger comprises a coil pipe structure, an air inlet, an air outlet, and an air conveying device, and is configured to use the air conveying device to suck in hot air in the equipment room through the air inlet, wherein the hot air exchanges heat with the circulation fluid flowing in the coil pipe structure, the hot air returns to the equipment room as cold air after releasing the heat, and the circulation fluid flowing in the coil pipe structure is driven by the fluid conveying device to flow out of the first air-liquid heat exchanger after absorbing the heat of the hot air. 
     
     
         3 . The system according to  claim 1 , wherein the second air-liquid heat exchanger and the first air-liquid heat exchanger are connected by the connecting pipes to form a first circulation pipeline, and the buried heat exchange unit and the first air-liquid heat exchanger are connected by the connecting pipes to form a second circulation pipeline; and
 the control device is a first control device, and is configured to acquire the environment information, and control the first circulation pipeline to be in an open state according to the control policy and the acquired environment information, wherein the circulation fluid is driven by the fluid conveying device to flow in the open first circulation pipeline, and the environment information includes at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes; or   the control device is a first control device, and is configured to acquire the environment information, and control the second circulation pipeline to be in an open state according to the control policy and the acquired environment information, wherein the circulation fluid is driven by the fluid conveying device to flow in the open second circulation pipeline, and the environment information includes at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes; or   the control device is a first control device, and is configured to acquire the environment information, and control the first circulation pipeline and the second circulation pipeline to be in an open state according to the control policy and the acquired environment information, wherein the circulation fluid is driven by the fluid conveying device to flow in the open first circulation pipeline and second circulation pipeline, and the environment information includes at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes.   
     
     
         4 . The system according to  claim 3 , wherein after the circulation fluid flows into the second air-liquid heat exchanger along the open first circulation pipeline, the second air-liquid heat exchanger is configured to enable the circulation fluid flowing in coil pipes of the second air-liquid heat exchanger to exchange the heat with the air flowing outside the coil pipes, wherein the circulation fluid with a lowered temperature is driven by the fluid conveying device to circulate and flow back to the first air-liquid heat exchanger along the open first circulation pipeline. 
     
     
         5 . The system according to  claim 3 , wherein the buried heat exchange unit comprises one or more groups of underground buried pipes; when the circulation fluid flows into the buried heat exchange unit along the open second circulation pipeline, the buried heat exchange unit is configured to enable the circulation fluid to transfer the heat to the soil when flowing in the underground buried pipes, wherein the circulation fluid with a lowered temperature is driven by the fluid conveying device to flow back to the first air-liquid heat exchanger along the open second circulation pipeline. 
     
     
         6 . The system according to  claim 1 , wherein at least one control valve is disposed on each of the circulation pipelines, and at least one fluid conveying device is disposed on each of the circulation pipelines and the at least one fluid conveying device is disposed at the same pipe position of the circulation pipelines,
 the control device is a first valve control device, configured to control the opening or the closing of the corresponding control valves according to the control policy and the acquired environment information, to enable at least one circulation pipeline to be in an open state, wherein the circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline.   
     
     
         7 . The system according to  claim 1 , wherein at least one control valve is disposed on each of the circulation pipelines, and at least one fluid conveying device is disposed on each of the circulation pipelines separately,
 the control device is a second valve control device, configured to control the opening or the closing of the corresponding control valves, to enable at least one circulation pipeline to be in an open state, and control the corresponding fluid conveying device to drive the circulation fluid to flow in the open circulation pipeline, according to the control policy and the acquired environment information, wherein the circulation fluid flows in the open circulation pipeline.   
     
     
         8 . An equipment room, wherein a cooling system is applied to the equipment room, the cooling system comprises a first air-liquid heat exchanger, a second air-liquid heat exchanger, a buried heat exchange unit, a control device, a fluid conveying device, and connecting pipes; the first air-liquid heat exchanger is disposed in the equipment room; the second air-liquid heat exchanger disposed outside the equipment room, and the buried heat exchange unit buried underground are connected by the connecting pipes to the first air-liquid heat exchanger to form at least two circulation pipelines; and
 the control device is configured to acquire environment information, and control at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline, and the environment information includes at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes.   
     
     
         9 . The equipment room according to  claim 8 , wherein at least one control valve is disposed on each of the circulation pipelines, at least one fluid conveying device is disposed on each of the circulation pipelines, and the at least one fluid conveying device is disposed at the same pipe position of the circulation pipelines,
 the control device is a first valve control device, configured to control the opening or the closing of the corresponding control valves according to the control policy and the acquired environment information, to enable at least one circulation pipeline to be in an open state, wherein the circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline.   
     
     
         10 . The equipment room according to  claim 8 , wherein at least one control valve is disposed on each of the circulation pipelines, and at least one fluid conveying device is disposed on each of the circulation pipelines separately,
 the control device is a second valve control device, configured to control the opening or the closing of the corresponding control valves to enable at least one circulation pipeline to be in an open state, and control the corresponding fluid conveying device to drive the circulation fluid to flow in the open circulation pipeline according to the control policy and the acquired environment information, wherein the circulation fluid flows in the open circulation pipeline.   
     
     
         11 . The equipment room according to  claim 8 , wherein the second air-liquid heat exchanger and the first air-liquid heat exchanger are connected by the connecting pipes to form a first circulation pipeline, and the buried heat exchange unit and the first air-liquid heat exchanger are connected by the connecting pipes to form a second circulation pipeline; and
 a first control valve and a second control valve are disposed on the first circulation pipeline, and a third control valve and a fourth control valve are disposed on the second circulation pipeline,   the control device is a third valve control device, configured to control the opening of the first control valve and the second control valve according to the control policy and the acquired environment information, wherein the circulation fluid flows in the first circulation pipeline on which the opened control valves are arranged; or   the control device is a third valve control device, configured to control the opening of the third control valve and the fourth control valve according to the control policy and the acquired environment information, wherein the circulation fluid flows in the second circulation pipeline on which the opened control valves are arranged; or   the control device is a third valve control device, configured to control the opening of the first control valve and the second control valve and the opening of the third control valve and the fourth control valve according to the control policy and the acquired environment information, wherein the circulation fluid flows in the first circulation pipeline and the second circulation pipeline on which the opened control valves are arranged.   
     
     
         12 . The equipment room according to  claim 8 , wherein the control device comprises:
 an environment information acquiring unit, configured to acquire the environment information, wherein the environment information includes at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes; and   a control unit, configured to control at least one of the at least two circulation pipelines to be in an open state according to the control policy and the environment information that is acquired by the environment information acquiring unit, wherein the circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline.   
     
     
         13 . The equipment room according to  claim 12 , wherein the environment information acquiring unit is further configured to acquire an indoor temperature of the equipment room; and
 the control unit is further configured to perform corresponding fan speed regulation control on a fan of the second air-liquid heat exchanger according to the acquired outdoor temperature of the equipment room and association information between the outdoor temperature information and fan speeds of the fan of the second air-liquid heat exchanger; or   the control unit is further configured to perform corresponding fan speed regulation control on a fan of the first air-liquid heat exchanger according to the acquired indoor temperature of the equipment room and association information between the indoor temperature information and fan speeds of the fan of the first air-liquid heat exchanger; or   the control unit is further configured to perform corresponding fan speed regulation control on a fan of the second air-liquid heat exchanger according to the acquired outdoor temperature of the equipment room and association information between the outdoor temperature information and fan speeds of the fan of the second air-liquid heat exchanger; and to perform corresponding fan speed regulation control on a fan of the first air-liquid heat exchanger according to the acquired indoor temperature of the equipment room and association information between the indoor temperature information and fan speeds of the fan of the first air-liquid heat exchanger.   
     
     
         14 . A control method, applicable to a cooling system comprising a buried heat exchange unit, a first air-liquid heat exchanger, a second air-liquid heat exchanger, a control device, a fluid conveying device, and connecting pipes, the cooling system being applied to an equipment room, wherein the second air-liquid heat exchanger and the buried heat exchange unit are connected by the connecting pipes to the first air-liquid heat exchanger to form at least two circulation pipelines, the method comprising:
 acquiring environment information, wherein the environment information comprises at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes; and   controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline.   
     
     
         15 . The method according to  claim 14 , wherein when the second air-liquid heat exchanger and the first air-liquid heat exchanger are connected by the connecting pipes to form a first circulation pipeline, and the buried heat exchange unit and the first air-liquid heat exchanger are connected by the connecting pipes to form a second circulation pipeline,
 the controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline comprises:   controlling the opening of the first circulation pipeline according to the control policy and the acquired environment information, wherein the circulation fluid flowing out of the first air-liquid heat exchanger flows into the corresponding second air-liquid heat exchanger through the first circulation pipeline to perform the cooling, and circulates and flows back to the first air-liquid heat exchanger through the first circulation pipeline; or   controlling the opening of the second circulation pipeline according to the control policy and the acquired environment information, wherein the circulation fluid flowing out of the first air-liquid heat exchanger flows into the corresponding buried heat exchange unit through the second circulation pipeline to perform the cooling, and flows back to the first air-liquid heat exchanger through the second circulation pipeline; or   controlling the opening of the first circulation pipeline and the second circulation pipeline according to the control policy and the acquired environment information, wherein the circulation fluid flowing out of the first air-liquid heat exchanger flows into the corresponding second air-liquid heat exchanger through the first circulation pipeline to perform the cooling, and circulates and flows back to the first air-liquid heat exchanger through the first circulation pipeline; and, the circulation fluid flowing out of the first air-liquid heat exchanger flows into the corresponding buried heat exchange unit through the second circulation pipeline to perform the cooling, and flows back to the first air-liquid heat exchanger through the second circulation pipeline.   
     
     
         16 . The method according to  claim 14 , wherein at least one control valve is disposed on each of the circulation pipelines, and at least one fluid conveying device is disposed on each of the circulation pipelines, and the at least one fluid conveying device is disposed at the same pipe position of the circulation pipelines,
 the controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline comprises:   controlling the opening or the closing of the corresponding control valves according to the control policy and the acquired environment information, to enable at least one circulation pipeline to be in an open state, wherein the circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline.   
     
     
         17 . The method according to  claim 14 , wherein at least one control valve is disposed on each of the circulation pipelines, and at least one fluid conveying device is disposed on each of the circulation pipelines separately,
 the controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline comprises:   controlling the opening or the closing of the corresponding control valves to enable at least one circulation pipeline to be in an open state, and controlling the corresponding fluid conveying device to drive the circulation fluid in the open circulation pipeline to flow, according to the control policy and the acquired environment information, wherein the circulation fluid flows in the open circulation pipeline.   
     
     
         18 . The method according to  claim 14 , wherein the acquiring environment information, wherein the environment information comprises at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes comprises: acquiring the outdoor temperature T 1  of the equipment room and an indoor temperature T 2  of the equipment room;
 when the second air-liquid heat exchanger and the first air-liquid heat exchanger are connected by the connecting pipes to form a first circulation pipeline, and the buried heat exchange unit and the first air-liquid heat exchanger are connected by the connecting pipes to form a second circulation pipeline, the controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information comprises: 
 when the outdoor temperature T 1  of the equipment room is higher than a designed maximum working temperature Tf of the second air-liquid heat exchanger, controlling the opening of the second circulation pipeline, wherein the circulation fluid is driven by the fluid conveying device to flow in the open second circulation pipeline; 
 when the outdoor temperature T 1  of the equipment room is lower than or equal to the designed maximum working temperature Tf of the second air-liquid heat exchanger, controlling the opening of the first circulation pipeline, wherein the circulation fluid is driven by the fluid conveying device to flow in the open first circulation pipeline; and 
 when the indoor temperature T 2  of the equipment room is higher than an indoor maximum allowed temperature Ts of the equipment room and the outdoor temperature T 1  of the equipment room is higher than the designed maximum working temperature Tf of the second air-liquid heat exchanger, controlling the opening of the first circulation pipeline and the second circulation pipeline, wherein the circulation fluid is driven by the fluid conveying device to flow in the open first circulation pipeline and second circulation pipeline. 
 
     
     
         19 . The method according to  claim 14 , wherein the acquiring environment information, wherein the environment information comprises at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes comprises:
 acquiring the outdoor temperature T 1  of the equipment room and the temperature T 3  of the soil surrounding the underground buried pipes;   when the second air-liquid heat exchanger and the first air-liquid heat exchanger are connected by the connecting pipes to form a first circulation pipeline, and the buried heat exchange unit and the first air-liquid heat exchanger are connected by the connecting pipes to form a second circulation pipeline, the controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information comprises:   when the temperature T 3  of the soil surrounding the underground buried pipes is lower than a designed maximum temperature Tm of the soil surrounding the underground buried pipes, controlling the opening of the second circulation pipeline, wherein the circulation fluid is driven by the fluid conveying device to flow in the open second circulation pipeline;   when the temperature T 3  of the soil surrounding the underground buried pipes is higher than or equal to the designed maximum temperature Tm of the soil surrounding the underground buried pipes and the outdoor temperature T 1  of the equipment room is lower than or equal to a designed maximum working temperature Tf of the second air-liquid heat exchanger, controlling the opening of the first circulation pipeline, wherein the circulation fluid is driven by the fluid conveying device to flow in the open first circulation pipeline; and   when the temperature T 3  of the soil surrounding the underground buried pipes is higher than or equal to the designed maximum temperature Tm of the soil surrounding the underground buried pipes and the outdoor temperature T 1  of the equipment room is higher than the designed maximum working temperature Tf of the second air-liquid heat exchanger, controlling the opening of the first circulation pipeline and the second circulation pipeline, wherein the circulation fluid is driven by the fluid conveying device to flow in the open first circulation pipeline and second circulation pipeline.   
     
     
         20 . A computer-readable storage medium having computer executable instructions for performing a control method, applicable to a cooling system comprising a buried heat exchange unit, a first air-liquid heat exchanger, a second air-liquid heat exchanger, a control device, a fluid conveying device, and connecting pipes, the cooling system being applied to an equipment room, wherein the second air-liquid heat exchanger and the buried heat exchange unit are connected by the connecting pipes to the first air-liquid heat exchanger to form at least two circulation pipelines, the method comprising:
 acquiring environment information, wherein the environment information comprises at least one of the following temperatures: an outdoor temperature of the equipment room and a temperature of the soil surrounding buried pipes; and   controlling at least one of the at least two circulation pipelines to be in an open state according to a control policy and the acquired environment information, wherein a circulation fluid is driven by the fluid conveying device to flow in the open circulation pipeline.