Air-conditioning floor heating system capable of raising temperature by using waste heat of power room of data center

Abstract

According to the air-conditioning floor heating system capable of heating by using the waste heat of the electric power room of the data center, a part of heat of the electric power room is transferred into the water-fluorine heat exchanger through the refrigerant air pipe branch, so that the water-fluorine heat exchanger can provide hot water required by a floor heating coil pipe in an office area of a machine room; the condensing temperature of a refrigerant in the water-fluorine heat exchanger is not less than 43 DEG C, and the water supply temperature of the floor heating water coil pipe is 40 DEG C; redundant heat of the power room is dissipated into the air through the original outdoor condenser. On one hand, the machine room office area can directly utilize the heat dissipating capacity of the data center power room, so that the heat is not wasted; on the other hand, a waste heat recovery mode is adopted, huge power consumption generated by winter heating of an air conditioner in the office area of the machine room can be saved, energy is saved, consumption is reduced, the heating effect is better by adopting the floor heating system, and the equipment cost of an air source heat pump can be saved.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning and floor heating systems, and in particular to an air conditioning and floor heating system that utilizes waste heat from the power room of a data center for heating. Background Technology

[0002] Data center power rooms typically use single-unit air-cooled precision air conditioners for cooling. However, these power rooms generate significant heat, and the waste heat cannot be effectively utilized, generally dissipating into the air through outdoor condensers. Data centers also have offices for maintenance personnel. In northern regions, these offices require heating in winter, usually addressed by installing household air conditioners. However, in northern winters, household air conditioners are ineffective for heating data center office areas; the low density of hot air causes it to float in the air, making it uncomfortable for maintenance personnel. Furthermore, the low outside temperature in northern winters results in high electricity consumption for air conditioning heating. If a traditional underfloor heating system were to be built, a separate air-source heat pump system would be required, which is expensive. Therefore, a solution is needed that utilizes the waste heat from the data center power room for heating to address these technical problems. Utility Model Content

[0003] The purpose of this invention is to provide an air conditioning and underfloor heating system that utilizes waste heat from the power room of a data center. A portion of the heat from the power room is transferred to a water-fluorine heat exchanger via refrigerant piping. This water-fluorine heat exchanger then provides the hot water needed for the underfloor heating coils in the office area of ​​the server room. Excess heat from the power room is dissipated into the air through the existing outdoor condenser. On one hand, the office area of ​​the server room can directly utilize the heat dissipation from the data center's power room, preventing this heat from being wasted. On the other hand, the waste heat recovery method can save the significant electricity consumption of air conditioning in the office area during winter heating. The underfloor heating system provides better heating performance and reduces the equipment cost of air source heat pumps.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an air conditioning and floor heating system utilizing waste heat from a data center's power room, comprising a precision air conditioning indoor unit installed in the data center's power room, a precision air conditioning outdoor unit installed outdoors, and floor heating water coils coiled in the data center's office area; characterized in that: the precision air conditioning outdoor unit delivers low-temperature, low-pressure refrigerant liquid to the precision air conditioning indoor unit via a refrigerant liquid pipe; the precision air conditioning indoor unit has a built-in compressor; the low-temperature, low-pressure refrigerant liquid absorbs heat from the power room and evaporates into low-temperature, low-pressure refrigerant gas, which is then compressed by the compressor into high-temperature, high-pressure refrigerant gas and input into the refrigerant gas pipe; the refrigerant gas pipe is branched into refrigerant gas pipe branch one and refrigerant gas pipe branch two; refrigerant gas pipe branch one is connected to the precision air conditioning outdoor unit; refrigerant gas pipe branch two flows through a water-fluorine heat exchanger, exchanges heat with the floor heating water coils, and condenses into refrigerant liquid, which then enters the refrigerant liquid pipe.

[0005] As a further improvement to the technical solution of this utility model, a first temperature sensor is installed at the output end of the water-fluoride heat exchanger.

[0006] As a further improvement to the technical solution of this utility model, a second temperature sensor is installed at the water supply outlet of the underfloor heating water coil.

[0007] As a further improvement to the technical solution of this utility model, an electric regulating valve is provided on the second branch of the refrigerant gas pipe.

[0008] This invention transfers a portion of the heat from the data center's power room to a water-fluorine heat exchanger via a refrigerant pipeline. This allows the water-fluorine heat exchanger to provide the hot water needed for the underfloor heating coils in the server room and office areas. Excess heat from the power room is dissipated into the air through the existing outdoor condenser. On one hand, the server room and office areas can directly utilize the heat dissipation from the data center's power room, preventing this heat from being wasted. On the other hand, the waste heat recovery method saves on the significant electricity consumption of air conditioning in winter, resulting in better heating performance with the underfloor heating system, and also reduces the equipment cost of air source heat pumps. This invention also has the following beneficial effects:

[0009] 1. In northern winters, data center office areas use traditional household air conditioners for heating. The ambient temperature is usually below 5°C. At this time, the evaporation temperature of the air conditioning system is very low, the air conditioning efficiency is also very low, and the power consumption is large. However, this utility model uses the precision air conditioner in the original power room. The indoor temperature of the power room is about 33°C. At this time, the evaporation temperature of the air conditioning system is relatively high, and the air conditioning efficiency is also very high. Therefore, it can save a lot of power costs.

[0010] 2. Compared with the original precision air conditioning system for power rooms, this utility model can effectively utilize the waste heat of power rooms and simultaneously provide cooling and heating, so that the heat energy of the data center is not wasted.

[0011] 3. Compared with traditional air conditioning heating, this utility model adopts a floor heating system, where hot air rises from the bottom, resulting in better heating effect and greater comfort for maintenance personnel. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of an air conditioning and floor heating system that utilizes waste heat from the power room of a data center, according to an embodiment of this utility model.

[0014] In the attached diagram: 100 - Data center power room; 200 - Data center computer room office area; 1 - Precision air conditioner indoor unit; 2 - Precision air conditioner outdoor unit; 3 - Underfloor heating water coil; 4 - Refrigerant liquid pipe; 5 - Compressor; 6 - Refrigerant gas pipe; 7 - Refrigerant gas pipe branch one; 8 - Refrigerant gas pipe branch two; 9 - Water-fluorine heat exchanger; 10 - First temperature sensor; 11 - Second temperature sensor; 12 - Electric regulating valve. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1As shown, an air conditioning and floor heating system utilizing waste heat from a data center power room includes a precision air conditioning indoor unit 1 installed in the data center power room 100, a precision air conditioning outdoor unit 2 installed outdoors, and floor heating water coils 3 coiled in the data center server room office area 200. The precision air conditioning outdoor unit 2 delivers low-temperature, low-pressure refrigerant liquid to the precision air conditioning indoor unit 1 via a refrigerant liquid pipe 4. The precision air conditioning indoor unit 1 has a built-in compressor 5. The low-temperature, low-pressure refrigerant liquid absorbs heat from the power room 100 and evaporates into low-temperature, low-pressure refrigerant gas. After being compressed by the compressor, the refrigerant gas becomes high-temperature, high-pressure refrigerant gas and is input into a refrigerant gas pipe 6. The refrigerant gas pipe 6 is branched into a refrigerant gas pipe branch 7 and a refrigerant gas pipe branch 8. The refrigerant gas pipe branch 7 is connected to the precision air conditioning outdoor unit 2. The refrigerant gas pipe branch 8 flows through a water-fluorine heat exchanger 9 and exchanges heat with the floor heating water coils 3, condensing into refrigerant liquid which then enters the refrigerant liquid pipe 4. This invention transfers a portion of the heat from the data center's power room 100 to the water-fluorine heat exchanger 9 via refrigerant pipe branch 8. This allows the water-fluorine heat exchanger 9 to provide the hot water needed for the underfloor heating coils in the office area of ​​the server room. Excess heat from the power room is dissipated into the air through the existing outdoor condenser. On one hand, the office area can directly utilize the heat dissipation from the data center's power room 100, preventing this heat from being wasted. On the other hand, the waste heat recovery method saves on the significant electricity consumption of air conditioning in the office area during winter heating, and the underfloor heating system provides better heating performance while also reducing the equipment cost of air source heat pumps.

[0021] Specifically, in this embodiment, a first temperature sensor 10 is installed at the output end of the water-fluoride heat exchanger 9.

[0022] Specifically, in this embodiment, a second temperature sensor 11 is installed at the water supply outlet of the underfloor heating water coil 3.

[0023] Specifically, in this embodiment, an electric regulating valve 12 is installed on the second branch of the refrigerant gas pipe 8.

[0024] The working principle of this invention is as follows: Low-temperature, low-pressure refrigerant liquid enters the precision air conditioner indoor unit 1 through refrigerant liquid pipe 4, absorbs heat from the power room, and evaporates into low-temperature, low-pressure refrigerant gas. The refrigerant gas passes through compressor 5 (integrated into the precision air conditioner indoor unit 1) and becomes high-temperature, high-pressure refrigerant gas, entering refrigerant gas pipe 6. Refrigerant gas pipe 6 then splits into two branches: refrigerant gas pipe branch one 7 and refrigerant gas pipe branch two 8. Refrigerant gas pipe branch two 8 in the computer room office area transfers the high-temperature, high-pressure refrigerant gas through a water-fluorine heat exchanger 9, transferring some of the waste heat from the power room to the water medium in the heat exchanger. This allows the water-fluorine heat exchanger 9 to stably output 40°C hot water, supplying the underfloor heating coils 3 for office heating. Refrigerant gas pipe branch one 7 dissipates the remaining heat into the outside air through the precision air conditioner outdoor unit 2. Finally, after the refrigerant is cooled by the precision air conditioner outdoor unit 2 and the water-fluorine heat exchanger 9, it condenses back into refrigerant liquid, then converges and enters the precision air conditioner indoor unit 1, completing one cycle. This invention connects the refrigerant branch pipe of the precision air conditioner indoor unit 1 in the data center power room 100 to the water-fluorine heat exchanger 9, utilizing the waste heat of the power room to produce the hot water required for the underfloor heating coil 3. Through temperature sensor control, the condensation temperature of the refrigerant in the water-fluorine heat exchanger 9 is guaranteed to be ≥43℃, and the water supply temperature of the underfloor heating coil 3 is guaranteed to be 40℃.

[0025] A first temperature sensor 10 is installed at the outlet of the water-refrigerant heat exchanger 9, and a second temperature sensor 11 is installed at the water supply outlet of the underfloor heating coil 3. An electric regulating valve 12 is installed on the refrigerant gas branch 8. The first temperature sensor 10 controls the output and discharge pressure of the compressor 5 to ensure that the refrigerant temperature (i.e., the condensation temperature of the refrigerant) at the outlet of the water-refrigerant heat exchanger 9 is ≥43℃, thus ensuring a heat exchange temperature difference of more than 3 degrees between the refrigerant and the water. The second temperature sensor 11 controls the opening of the electric regulating valve 12 on the refrigerant gas branch 8, that is, by controlling the flow rate of the refrigerant gas branch 8, the water supply temperature of the underfloor heating coil 3 is ensured to be 40℃. When the underfloor heating is not needed, the electric regulating valve 12 on the refrigerant gas branch 8 can be manually shut off, at which time all the heat in the electrical room is carried away by the outdoor precision air conditioner unit 2.

[0026] This utility model has the following beneficial effects:

[0027] 1. In northern winters, the office area of ​​the data center server room uses traditional household air conditioning for heating. The ambient temperature is usually below 5°C. At this time, the evaporation temperature of the air conditioning system is very low, the air conditioning efficiency is also very low, and the power consumption is large. However, this utility model uses the precision air conditioning in the original power room. The indoor temperature of the power room is about 33°C. At this time, the evaporation temperature of the air conditioning system is relatively high, and the air conditioning efficiency is also very high. Therefore, it can save a lot of power costs.

[0028] 2. Compared with the original precision air conditioning system for power rooms, this utility model can effectively utilize the waste heat of power rooms and simultaneously provide cooling and heating, so that the heat energy of the data center is not wasted.

[0029] 3. Compared with traditional air conditioning heating, this utility model adopts a floor heating system, where hot air rises from the bottom, resulting in better heating effect and greater comfort for maintenance personnel.

[0030] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An air conditioning and floor heating system utilizing waste heat from a data center's power room, comprising a precision air conditioning indoor unit installed in the data center's power room, a precision air conditioning outdoor unit installed outdoors, and floor heating water coils coiled in the data center's office area; characterized in that: The outdoor unit of the precision air conditioner delivers low-temperature, low-pressure refrigerant liquid to the indoor unit via a refrigerant liquid pipe. The indoor unit contains a compressor. The low-temperature, low-pressure refrigerant liquid absorbs heat from the power supply room and evaporates into low-temperature, low-pressure refrigerant gas. After being compressed by the compressor, the refrigerant gas becomes high-temperature, high-pressure refrigerant gas and is input into the refrigerant gas pipe. The refrigerant gas pipe is divided into refrigerant gas pipe branch one and refrigerant gas pipe branch two. Refrigerant gas pipe branch one is connected to the outdoor unit of the precision air conditioner. Refrigerant gas pipe branch two flows through a water-fluorine heat exchanger and exchanges heat with the underfloor heating water coil, condensing into refrigerant liquid which then enters the refrigerant liquid pipe.

2. The air conditioning and floor heating system utilizing waste heat from the power room of a data center as described in claim 1, characterized in that: The output end of the water-fluoride heat exchanger is equipped with a first temperature sensor.

3. An air conditioning and floor heating system utilizing waste heat from a data center power room as described in claim 1, characterized in that: A second temperature sensor is installed at the water supply outlet of the underfloor heating water coil.

4. An air conditioning and floor heating system utilizing waste heat from a data center power room as described in claim 1, characterized in that: An electric regulating valve is installed on the second branch of the refrigerant gas pipeline.

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