CN215216530U

CN215216530U - Temperature control system

Info

Publication number: CN215216530U
Application number: CN202121252610.2U
Authority: CN
Inventors: 闫健; 钟志刚; 朱清峰
Original assignee: China United Network Communications Group Co Ltd; China Information Technology Designing and Consulting Institute Co Ltd
Current assignee: China United Network Communications Group Co Ltd; China Information Technology Designing and Consulting Institute Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-17
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a temperature control system relates to air conditioning technology field for improve data center computer lab's air conditioning system's thermal utilization ratio. The utility model provides a temperature control system, including single cold type unit and water ring type heat pump set, cooling tower, plate heat exchanger, single cold type unit and water ring type heat pump set up in different enclosed areas; the single-cooling type unit comprises one or more single-cooling type cabinets, and the water-ring type heat pump unit comprises one or more water-ring type heat pump cabinets; the liquid outlet pipes of the one or more single-cooling type cabinets are connected in parallel to the liquid inlet pipe of the cooling tower, and the liquid inlet pipe is connected in parallel to the liquid outlet pipe of the cooling tower; the liquid outlet pipes of the one or more water-ring heat pump cabinets are connected in parallel to the liquid inlet pipe of the cooling tower, and the liquid inlet pipe is connected in parallel to the liquid outlet pipe of the cooling tower; the liquid outlet pipe of the one or more water-ring heat pump cabinets is also connected in parallel to the liquid inlet pipe of the plate heat exchanger, and the liquid inlet pipe is also connected in parallel to the liquid outlet pipe of the plate heat exchanger.

Description

Temperature control system

Technical Field

The utility model relates to an air conditioner technical field especially relates to a temperature control system.

Background

With the rapid development of internet and cloud computing technologies, the number of data center rooms is on an increasing trend every year. The air conditioning system of the data center machine room is generally a centralized cold water system, and a cold water unit of the centralized cold water system conveys cold water to the tail end of each air conditioner through a transmission and distribution pipeline so as to cool circulating air flow in the machine room.

Because the equipment in the data center machine room operates all year round and the power consumption of a single cabinet reaches 4kW-6kW, in order to reduce the temperature of the data center machine room, an air conditioning system of the data center machine room needs to operate continuously for 24 hours to ensure the temperature environment requirement of the machine room. In general, heat generated by an air conditioning system of a data center room is directly discharged to the outside, which causes energy waste.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature control system for improve the thermal utilization ratio of the air conditioning system of data center computer lab.

In order to achieve the above object, the present invention provides the following technical solutions:

a temperature control system comprises a single-cooling type unit, a water-ring heat pump unit, a cooling tower and a plate heat exchanger, wherein the single-cooling type unit and the water-ring heat pump unit are arranged in different closed areas; the single-cooling type unit comprises one or more single-cooling type cabinets, and the water-ring type heat pump unit comprises one or more water-ring type heat pump cabinets; the liquid outlet pipes of the one or more single-cooling type cabinets are connected in parallel to the liquid inlet pipe of the cooling tower, and the liquid inlet pipes of the one or more single-cooling type cabinets are connected in parallel to the liquid outlet pipe of the cooling tower; the liquid outlet pipes of the one or more water-ring heat pump cabinets are connected in parallel to the liquid inlet pipe of the cooling tower, and the liquid inlet pipes of the one or more water-ring heat pump cabinets are connected in parallel to the liquid outlet pipe of the cooling tower; the liquid outlet pipes of the one or more water-ring heat pump cabinets are also connected in parallel to the liquid inlet pipe of the plate heat exchanger, and the liquid inlet pipes of the one or more water-ring heat pump cabinets are also connected in parallel to the liquid outlet pipe of the plate heat exchanger.

The utility model provides an among the refrigerating system, single cold type unit can set up and data center computer lab, and water ring type heat pump set can set up in the supporting office area of data center computer lab. Thus, in winter, because the single-cooling unit of the data center machine room needs to continuously work, heat generated by the single-cooling unit can be exchanged through the cooling tower to reduce the temperature of the refrigerant. At this time, under the condition that the water-ring heat pump unit of the office-supporting area of the data center machine room works, the cooling tower can utilize the heat generated by the single-cooling unit to supply heat for the refrigerant of the water-ring heat pump unit so as to improve the temperature of the office-supporting area. Based on the scheme of this application, the heat that single cold type unit produced can be utilized once more, can the energy saving to a certain extent. In addition, when the heat generated by the single-cooling type unit cannot meet the heating requirement of the water-ring heat pump, the plate heat exchanger can improve the temperature of the refrigerant, and the heating requirement of the ring heat pump is met.

Drawings

Fig. 1 is a schematic structural diagram of a temperature control system according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a single cooling cabinet according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a water ring heat pump cabinet according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

It should be noted that the architecture described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation to the technical solution provided in the embodiment of the present application, and as a person having ordinary skill in the art knows, along with the evolution of technology and the appearance of other devices, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

As shown in fig. 1, a temperature control system provided in an embodiment of the present application may include: single-cooling type unit, water-ring heat pump unit, plate heat exchanger and cooling tower.

The single-cooling type unit may include one or more single-cooling type cabinets (such as the single-cooling type cabinet 1 and the single-cooling type cabinet 2 in fig. 1). The water-ring heat pump unit includes one or more water-ring heat pump cabinets (e.g., a water-ring heat pump cabinet 1 and a water-ring heat pump cabinet 2 in fig. 1). The single-cooling type cabinet and the water-ring heat pump unit are respectively arranged in different closed areas. For example, the single-cooling type cabinet can be disposed in a data center machine room, and the water-ring heat pump unit can be disposed in an office area matched with the data center machine room.

Wherein, the liquid outlet pipe 1 of the one or more single-cooling type cabinets is connected in parallel to the liquid inlet pipe 5 of the cooling tower, and the liquid inlet pipe 2 of the one or more single-cooling type cabinets is connected in parallel to the liquid outlet pipe 6 of the cooling tower.

The liquid outlet pipes 3 of the one or more water-ring heat pump cabinets are connected in parallel to the liquid inlet pipe 5 of the cooling tower, and the liquid inlet pipes 4 of the one or more water-source heat pump cabinets are connected in parallel to the liquid outlet pipe 6 of the cooling tower. The liquid outlet pipes 3 of the one or more water-ring heat pump cabinets are also connected in parallel to the liquid inlet pipe 7 of the plate heat exchanger, and the liquid inlet pipes 4 of the one or more water-source heat pump cabinets are also connected in parallel to the liquid outlet pipe 8 of the plate heat exchanger.

It should be noted that the cooling tower in this application may have a plurality of liquid outlets 6 and liquid inlets 5. The liquid outlet pipe 1 of the single-cooling type cabinet and the liquid outlet pipe 3 of the water ring type heat pump can be connected into different liquid inlet pipes 5 of the cooling tower, and the liquid inlet pipe 2 of the single-cooling type cabinet and the liquid inlet pipe 4 of the water ring type heat pump can be connected into different liquid outlet pipes 6 of the cooling tower. In this way, the refrigerant of the single-cooling type cabinet and the water-ring heat pump can be isolated.

It is noted that the direction of the arrows in fig. 1 may be used to indicate the flow direction of the refrigerant. The refrigerant in this application may be ethylene glycol. Therefore, under the condition of low environmental temperature, the condition that the refrigerant is solidified and the pipeline is damaged is avoided.

Wherein the cooling tower may be used to regulate the temperature of the refrigerant. For example, the temperature of the refrigerant flowing out of the single-cold cabinet can be lowered, and the temperature of the refrigerant flowing into the water-ring heat pump can also be raised.

Specifically, since the single cooling type cabinet is used only for cooling, the cooling tower needs to lower the temperature of the refrigerant flowing out of the single cooling type cabinet. Because the water-ring heat pump can be used for heating and also can be used for refrigerating, the cooling tower heats or cools the refrigerant entering the water-ring heat pump according to the requirement of the water-ring heat pump.

In one example, when the external environment temperature is high (such as summer), the single-cooling type cabinet and the water ring type heat pump cabinet are both in a cooling demand state. In this case, the cooling tower may be in operation to lower the temperature of the refrigerant flowing into the single-cooling type cabinet and the water ring heat pump cabinet at the same time. The cooling tower being in operation may mean that an evaporator or an electric fan of the cooling tower may be operated to accelerate heat exchange between the refrigerant and the outside air to lower the temperature of the refrigerant.

In yet another example, when the external ambient temperature is low (e.g., in winter), the single-cooling cabinet is in a reduced demand state and the water-ring heat pump cabinet is in a raised demand state. In this case, since the temperature of the refrigerant flowing out of the single cooling type cabinet is higher than the temperature of the refrigerant flowing out of the water ring heat pump, heat exchange can be performed between the refrigerant flowing out of the single cooling type cabinet and the refrigerant flowing out of the water ring heat pump. Therefore, on one hand, the temperature of the refrigerant of the single-cooling type cabinet can be reduced, and on the other hand, the temperature of the refrigerant of the water-ring heat pump can be increased. Thereby, reuse of heat is achieved.

Further, when the external ambient temperature is low, in order to prevent the refrigerant temperature of the loop heat pump from being low due to the heat exchange in the above example, the user experience is not affected. In this application, when external environment temperature is lower, plate heat exchanger can be in operating condition. In this way, the temperature of the refrigerant flowing into the water ring heat pump cabinet is further increased.

It should be noted that, after the refrigerant flowing out of the single-cooling type cabinet exchanges heat with the refrigerant flowing out of the water ring heat pump cabinet, when the heat flowing into the water ring heat pump cabinet can meet the requirement, the plate heat exchanger may be in a closed state.

In one possible design, as shown in fig. 2, a schematic diagram of a single cooling type cabinet according to an embodiment of the present application is provided. The single cooling type cabinet may include a compressor 21, a gas-liquid separator 22, a cooler 23, and a water-cooled condenser 24. The connection of the compressor 21, the gas-liquid separator 22, the cooler 23, and the water-cooled condenser 24 can be as shown in fig. 2.

The cooler 23 may be a double-layer air cooler, for example, one layer may be an evaporator and one layer may be a water circulation surface cooler.

It should be noted that when the external environment is lower than the preset value, the compressor of the single cooling type cabinet may be in a shutdown state. The preset value can be set according to the requirement, for example, can be 5 ℃, and is not limited.

In one example, each single-cooling type cabinet is further provided with a control valve 25 for flexibly controlling the circulation of the refrigerant of the plurality of single-cooling type cabinets. The control valve may be disposed between the cooler 23 and the water-cooled condenser 24.

In a possible design, as shown in fig. 3, a schematic diagram of a water ring heat pump cabinet according to an embodiment of the present application is provided. The water-ring heat pump cabinet can comprise a compressor 31, a gas-liquid separator 32, a four-way reversing valve 33, a heat exchanger 34 and a water-cooled condenser 35. The connection modes of the compressor 31, the gas-liquid separator 32, the four-way selector valve 33, the heat exchanger 34, and the water-cooled condenser 35 can be as shown in fig. 3.

When the environment temperature is higher (such as summer), the refrigerating side of the water-ring heat pump is an evaporator, and the heat-discharging side of the water-ring heat pump is a condenser. In this manner, the condenser can directly reject heat to the external environment through the water loop. At higher ambient temperatures (e.g., winter). The water-ring heat pump realizes the function exchange of the condenser and the evaporator through a four-way reversing valve. That is, the evaporator discharges heat as a condenser for heating the circulating air. The condenser is used as an evaporator to absorb the heat energy of the water loop, so that the heat energy is recycled.

In one example, each single cooling type cabinet is further provided with a control valve 36 for flexibly controlling the circulation of the refrigerant of a plurality of water-ring heat pump cabinets. The control valve may be disposed between the heat exchanger 34 and the water-cooled condenser 35.

In the present application, "connected" means communicating, and a refrigerant/coolant can flow between the connected components.

It should be noted that the configurations shown in fig. 1 and 2, 3 do not constitute a limitation of the refrigeration system, and that the cabinet may include more or less components than those shown, or some components may be combined, or a different arrangement of components than those shown in fig. 1 and 2, 3.

It should be noted that the terms "first" and "second" and the like in the description, claims and drawings of the present application are used for distinguishing different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more, "at least two" means two or three and three or more, "and/or" for describing an association relationship of associated objects, meaning that three relationships may exist, for example, "a and/or B" may mean: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A temperature control system is characterized by comprising a single-cooling type unit, a water-ring type heat pump unit, a cooling tower and a plate heat exchanger; the single-cooling type unit and the water-ring type heat pump unit are arranged in different closed areas;

the single-cooling type unit comprises one or more single-cooling type cabinets, and the water-ring type heat pump unit comprises one or more water-ring type heat pump cabinets;

the liquid outlet pipes of the one or more single-cooling type cabinets are connected to the liquid inlet pipe of the cooling tower in parallel, and the liquid inlet pipes of the one or more single-cooling type cabinets are connected to the liquid outlet pipe of the cooling tower in parallel;

the liquid outlet pipes of the one or more water-ring heat pump cabinets are connected in parallel to the liquid inlet pipe of the cooling tower, and the liquid inlet pipes of the one or more water-ring heat pump cabinets are connected in parallel to the liquid inlet pipe of the cooling tower; the liquid outlet pipes of the one or more water-ring heat pump cabinets are also connected in parallel to the liquid inlet pipe of the plate heat exchanger, and the liquid inlet pipes of the one or more water-ring heat pump cabinets are also connected in parallel to the liquid outlet pipe of the plate heat exchanger.

2. The temperature control system according to claim 1, wherein the liquid inlet pipe and the liquid outlet pipe of the plate heat exchanger are provided with a first control valve.

3. The temperature control system of claim 2, wherein the first control valve is in an open state when an ambient temperature outside an area where the water ring heat pump is located is lower than a preset temperature; when the external environment temperature of the area where the water-ring heat pump is located is higher than the preset temperature, the first control valve is in a closed state.

4. The temperature control system according to claim 3, wherein the single-cooling type unit comprises a first compressor, a first gas-liquid separator, a cooler, and a first water-cooled condenser, wherein the first compressor, the first gas-liquid separator, the cooler, and the first water-cooled condenser are connected in sequence.

5. The temperature control system of claim 4, wherein the chiller comprises an evaporator and a water circulating surface cooler.

6. The temperature control system of claim 4, wherein the first compressor is in a shutdown state when an ambient temperature outside the area of the chiller unit is below a preset temperature.

7. The temperature control system according to claim 3, wherein the water-ring heat pump system comprises a second compressor, a second gas-liquid separator, a four-way reversing valve, a heat exchanger, and a second water-cooled condenser, and the second compressor, the second gas-liquid separator, the four-way reversing valve, the heat exchanger, and the second water-cooled condenser are connected in sequence.

8. The temperature control system according to any one of claims 1-7, wherein the cooling tower comprises a plurality of cooling units, liquid inlet pipes of the plurality of cooling units are connected in parallel, and liquid storage tanks of the plurality of cooling units are connected in parallel.

9. The temperature control system of any one of claims 1-7, wherein the refrigerant of the temperature control system is ethylene glycol.