CN113108387A

CN113108387A - Evaporative cooling air conditioning unit with heat recovery function

Info

Publication number: CN113108387A
Application number: CN202110483010.5A
Authority: CN
Inventors: 陈伟; 雷海涛; 熊美兵; 丁云霄; 苏林; 卫鹏云; 蒋宁; 陶昌军; 齐宇
Original assignee: Tibet Ningsuan Technology Group Co ltd; GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Current assignee: Tibet Ningsuan Technology Group Co ltd; GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-07-13

Abstract

The invention provides an evaporative cooling air conditioning unit with heat recovery, which belongs to the technical field of air conditioners and comprises: the cooling system comprises an air inlet channel and an air exhaust channel which are communicated with the machine room; the heat recovery device is arranged in the exhaust channel and can be used for recovering the heat of the exhaust channel; and the water source heat pump unit is communicated with the heat recovery device, and the heat recovery device can be used for supplying heat to the water source heat pump unit. The evaporative cooling air conditioning unit with the heat recovery skillfully connects the water source heat pump unit with the cooling system, not only can realize cooling of the machine room, but also can collect heat in the machine room and supply the part of heat to equipment such as the water source heat pump unit, so that the performance of the equipment such as the water source heat pump unit is improved, meanwhile, smooth flowing of cold air can be ensured, and further, the efficient cooling of the machine room by the cooling system is ensured.

Description

Evaporative cooling air conditioning unit with heat recovery function

Technical Field

The invention relates to the technical field of air conditioning systems, in particular to an evaporative cooling air conditioning unit with heat recovery.

Background

In the correlation technique, the heat recovery device of the air conditioning unit is arranged on an air inlet channel of a cooling system, and air flow in the air inlet channel firstly contacts with the heat recovery device and then enters the machine room. And above-mentioned setting mode directly leads to no matter what kind of mode is in to air conditioning unit, and the air current in the inlet air duct all needs to contact with heat recovery unit earlier, and when air conditioning unit no longer need carry out the operation of heat recovery mode, the air still has the windage through heat recovery unit, and this part resistance is to refrigeration nothing effect completely, is equivalent to doing useless work, and is not enough energy-conserving and can reduce the cooling effect to the computer lab.

Disclosure of Invention

The invention aims to at least solve the problem of wind resistance caused by a heat recovery device arranged in an air inlet duct when an air conditioning unit does not operate in a heat recovery mode in the prior art.

Therefore, the invention provides an evaporative cooling air conditioning unit with heat recovery.

The invention provides an evaporative cooling air conditioning unit with heat recovery, which comprises: the cooling system comprises an air inlet channel and an air exhaust channel which are communicated with the machine room; the heat recovery device is arranged in the exhaust channel and can be used for recovering the heat of the exhaust channel; and the water source heat pump unit is communicated with the heat recovery device, and the heat recovery device can be used for supplying heat to the water source heat pump unit.

The evaporative cooling air conditioning unit with the heat recovery function can be used for cooling a machine room of a data center so as to ensure that the temperature in the machine room is proper and the use environment of electrical equipment in the machine room is ensured. The evaporative cooling air conditioning unit with the heat recovery function comprises a cooling system, a heat recovery device and a water source heat pump unit which are matched with each other. The cooling system comprises an air inlet channel and an air exhaust channel which are communicated with the machine room, cold air can be conveyed into the machine room through the air inlet channel when the cooling system operates, hot air is exhausted out of the machine room from the air exhaust channel after heat exchange, and circulating cooling of the air is achieved.

In addition, the heat recovery device is arranged in the exhaust channel, so that the air exhausted from the machine room has certain heat after heat exchange and is at relatively high temperature. Therefore, the heat recovery device is arranged in the exhaust channel, so that the heat recovery device is fully contacted with hot air in the exhaust channel, and heat collection is realized. The water source heat pump unit is communicated with the heat recovery device, and the water source heat pump unit needs to heat in the operation process to ensure the performance of the water source heat pump unit. Therefore, the evaporative cooling air conditioning unit with heat recovery skillfully uses the water source heat pump unit and the cooling system in a matching way, and skillfully associates the water source heat pump unit and the cooling system through the heat recovery device, so that on one hand, the waste of heat can be avoided, and on the other hand, the performances of the water source heat pump unit and other equipment can be improved.

And, set up heat reclamation device in exhaust air channel for heat reclamation device can not form the windage in inlet air channel, has guaranteed that heat reclamation device can not influence the circulation of air current in the inlet air channel, has guaranteed that cold air smoothly flows in inlet air channel, especially when air conditioning system does not need operation heat recovery mode, can guarantee that cold air smoothly flows, and then has guaranteed the high-efficient cooling of cooling system to the computer lab.

Therefore, the evaporative cooling air conditioning unit with heat recovery skillfully connects the water source heat pump unit with the cooling system, not only can the machine room be cooled, but also the heat in the machine room can be collected and supplemented to the equipment such as the water source heat pump unit, and the performance of the equipment such as the water source heat pump unit is improved. Moreover, the heat recovery device can be ensured not to influence the circulation of air flow in the air inlet channel, the smooth flow of cold air in the air inlet channel is ensured, especially when the air conditioning system does not need to operate a heat recovery mode, the smooth flow of cold air can be ensured, and further the efficient cooling of the machine room by the cooling system is ensured.

According to the evaporation cooling air conditioning unit with the heat recovery function in the technical scheme, the evaporation cooling air conditioning unit can further have the following additional technical characteristics:

take evaporation cooling air conditioning unit of heat recovery in above-mentioned technical scheme, heat recovery unit includes: the heat exchange component is arranged in the exhaust channel.

In this technical solution, the heat recovery device includes a heat exchange member. Wherein, the heat exchange component is arranged in the exhaust channel; take evaporation cooling air conditioning unit of heat recovery at the in-process of motion, the hot-air in the passageway of airing exhaust fully contacts with heat transfer part, and then constantly contacts the heat transfer with heat transfer part heat transfer, heats the inside liquid of heat transfer part simultaneously, realizes the collection to the heat. In addition, because the hot-air through with the computer lab heat transfer originally has relatively higher temperature, can guarantee the heat transfer effect of this part hot-air and heat transfer part, promote the collection efficiency to the heat.

In any one of the above technical solutions, the heat recovery apparatus further includes: and the bypass component is arranged in the exhaust channel and is positioned between the heat exchange component and the inner wall of the exhaust channel.

In the technical scheme, the heat recovery device further comprises a bypass component matched with the heat exchange component. The bypass component is arranged in the exhaust channel and is positioned at the interval between the heat exchange component and the inner wall of the exhaust channel. The bypass component is matched with the heat exchange component and is arranged at the same position in the exhaust channel, so that whether heat in the exhaust channel is collected or not can be selected by controlling the opening or closing of the bypass component, and the switching of different running modes of the evaporative cooling air conditioning unit with heat recovery is realized.

In addition, when the heat in the exhaust channel is not required to be collected, the airflow in the exhaust channel directly passes through the bypass component, so that the wind resistance of the heat recovery device in the exhaust channel can be reduced, the smooth flow of hot air in the exhaust channel is ensured, and the efficient cooling of the machine room by the cooling system is further ensured.

In any of the above technical solutions, the bypass component is an electric control valve; the electric control valve is opened, the air flow in the exhaust channel passes through the bypass component, the electric control valve is closed, and the air flow in the exhaust channel passes through the heat exchange component.

In the technical scheme, the bypass component can adopt an electric control valve, and particularly can adopt an electric control air valve, and can be controlled to be opened or closed according to actual needs, so that the operation of the evaporative cooling air conditioning unit with heat recovery can be switched into different modes.

When the evaporative cooling air conditioning unit with heat recovery is in a normal mode (namely, in a non-heat recovery mode), the electric control valve is controlled to be opened, at the moment, the air flow in the exhaust channel passes through the bypass component and does not pass through the heat exchange component, and at the moment, the heat in the exhaust channel is not collected. When the evaporative cooling air conditioning unit with heat recovery is in a heat recovery mode, the electric control valve is controlled to be closed, and at the moment, the air flow in the air exhaust channel passes through the heat exchange component to collect the heat in the air exhaust channel.

In any of the above technical solutions, the cooling system further includes a fresh air valve, and the fresh air valve is disposed at an inlet end of the air inlet channel; and the exhaust valve is arranged at the outlet end of the exhaust channel.

In the technical scheme, the cooling system further comprises a fresh air valve and an exhaust valve. The fresh air valve is arranged at the inlet end of the air inlet channel and can be used for conducting or closing the inlet end of the air inlet channel. Therefore, in the operation process of the evaporative cooling air conditioning unit with heat recovery, the fresh air valve can be opened to introduce fresh air in the external environment into the machine room, the air temperature in the external environment is reduced, the working strength of a cooling system can be reduced, and the energy-saving effect is achieved. The exhaust valve is arranged at the outlet end of the exhaust channel, so that the gas after heat exchange can be discharged from the exhaust valve.

In any of the above technical solutions, the air intake channel has an air mixing section; the cooling system also comprises an air mixing valve which is communicated with the air exhaust channel and the air mixing section, and the heat recovery device is positioned between the inlet end of the air exhaust channel and the air mixing valve.

In this technical scheme, inlet air channel has the mixed wind section to the cooling system still includes mixed wind valve. Wherein, mix the blast gate and will exhaust the wind channel and air inlet channel mix the wind section intercommunication, when mixing the blast gate and opening, hot-air accessible through the heat transfer mixes the blast gate and directly reenters air inlet channel's the section of mixing to mix with the air that enters into air inlet channel from the new trend valve, then enter into the computer lab through air inlet channel jointly inside, realize the cooling to the computer lab.

In addition, because the air that gets into from mixing the blast gate and mixes the wind section has carried out the heat transfer with heat reclamation plant, can not have higher temperature, can guarantee whole cooling system's steady high-efficient operation equally.

In any of the above technical solutions, the air intake channel has a filtering section; the cooling system also comprises a filtering device, and the filtering device is arranged in the filtering section.

In this technical scheme, inlet air channel has the filter segment, and the filter segment communicates with the wind section of mixing to compare in the wind section of mixing and be closer to the exit end of air-out passageway more. The cooling system also comprises a filtering device, and the filtering device is arranged at the filtering section. Like this, the air that enters into in the computer lab can be at first through filter equipment and obtain the filtration, guarantees the computer lab internal environment on the basis to the computer lab cooling, and it is inside especially to avoid outside dust to enter into the computer lab.

In any of the above technical solutions, the air intake channel has an air supply section; the cooling system also comprises an evaporative cooling device which is arranged in the air supply section.

In the technical scheme, the air inlet channel is also provided with an air supply section, and the air supply section is communicated with the filtering section of the air inlet channel. The cooling system also comprises an evaporative cooling device which is arranged at the air supply section. Like this, the air that enters into in the computer lab can be at first through evaporation cooling device and obtain the cooling, guarantees to enter into the temperature of the inside air of computer lab and is low enough, guarantees the cooling effect to the computer lab.

In any of the above technical solutions, the cooling system further includes: the exhaust fan is arranged in the exhaust channel; and the air feeder is arranged on the air inlet channel.

In the technical scheme, the cooling system further comprises an exhaust fan and a blower which are used in a matched mode. Wherein, the forced draught blower operation can drive outside air to the inside of computer lab through inlet air channel to reduce the temperature of computer lab, realize the cooling processing to the computer lab. The exhaust fan can drive the air in the machine room to the outside of the machine room through the exhaust channel or drive the air in the machine room to the air inlet channel again through the exhaust channel during operation, so that the air flow is ensured.

In any of the above technical solutions, the evaporative cooling air conditioning unit with heat recovery further includes a pipeline, and the pipeline is communicated with the heat recovery device and the water source heat pump unit.

In the technical scheme, the heat exchange part of the heat recovery device is a coil pipe, and the evaporative cooling air conditioning unit with the heat recovery device further comprises a pipeline. The coil pipe is communicated with the water source heat pump unit through a pipeline, and liquid in the water source heat pump unit can flow through the inside of the coil pipe. In addition, the coil pipe is arranged in the exhaust channel to ensure that when the gas in the exhaust channel passes through the coil pipe, the liquid in the coil pipe is heated, and the collection of heat is realized.

In any of the above technical solutions, the evaporative cooling air conditioning unit with heat recovery further includes: and the energy storage tank is communicated with the water source heat pump unit.

In the technical scheme, the water source heat pump unit is communicated with the water source heat pump unit so as to store heat obtained by the water source heat pump unit and release the heat when the water source heat pump unit is required to be used.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an evaporative cooling air conditioning unit with heat recovery according to one embodiment of the present invention;

fig. 2 is a schematic structural view of an evaporative cooling air conditioning unit with heat recovery according to another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 200, 202, 204.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

An evaporative cooling air conditioning unit with heat recovery provided according to some embodiments of the present invention is described below with reference to fig. 1 and 2. The bold arrows in fig. 1 and 2 indicate the gas flow direction.

As shown in fig. 1 and fig. 2, a first embodiment of the present invention provides an evaporative cooling air conditioning unit with heat recovery, which can be used for cooling a machine room 200 of a data center, so as to ensure that the temperature inside the machine room 200 is proper and ensure the use environment of electrical equipment in the machine room 200. The evaporative cooling air conditioning unit with heat recovery comprises a cooling system 102, a heat recovery device 108 and a water source heat pump unit 110 which are matched for use.

The cooling system 102 comprises an air inlet channel 104 and an air outlet channel 106 which are communicated with the machine room 200, cold air can be conveyed into the machine room 200 through the air inlet channel 104 when the cooling system 102 operates, hot air is discharged out of the machine room 200 from the air outlet channel 106 after heat exchange, and circulating cooling of air is achieved.

In addition, as shown in fig. 1 and 2, the heat recovery device 108 is disposed in the exhaust duct 106, and the air exhausted from the machine room 200 has a certain amount of heat after heat exchange and is at a relatively high temperature. Therefore, the heat recovery device 108 is disposed in the exhaust duct 106, so that the heat recovery device 108 is in full contact with hot air in the exhaust duct 106, and heat collection is realized. The water source heat pump unit 110 is communicated with the heat recovery device 108. Wherein, the water source heat pump unit 110 needs to heat in the operation process to ensure the performance of the water source heat pump unit 110 itself. Therefore, the evaporative cooling air conditioning unit with heat recovery skillfully uses the water source heat pump unit 110 and the cooling system 102 in a matching way, and skillfully connects the water source heat pump unit 110 and the cooling system 102 through the heat recovery device 108, so that on one hand, the waste of heat can be avoided, and on the other hand, the performances of the water source heat pump unit 110 and other equipment can be improved.

Moreover, as shown in fig. 1 and fig. 2, the heat recovery device 108 is disposed in the air exhaust channel 106, so that the heat recovery device 108 does not form a wind resistance in the air intake channel 104, and thus it is ensured that the heat recovery device 108 does not affect the circulation of air flow in the air intake channel 104, and it is ensured that cold air smoothly flows in the air intake channel 104, and especially when the air conditioning system does not need to operate the heat recovery mode, it is ensured that the cold air smoothly flows, and further, it is ensured that the cooling system 102 efficiently cools the machine room 200.

It should be specially noted that, in the related art, the heat recovery devices of the air conditioning unit are all disposed in the air inlet channel of the cooling system, but the heat recovery devices are not always disposed in the actual use process of the air conditioning unit, and at this time, the heat recovery devices disposed in the air inlet channel may affect the air flow, and thus the original cooling performance of the air conditioning unit is affected. And the evaporation cooling air conditioning unit who takes heat recovery that this embodiment provided sets up heat recovery unit 108 at passageway 106 of airing exhaust ingeniously, can not influence the air inlet of computer lab 200 at passageway 106 of airing exhaust, and then has guaranteed to enter into the inside gas quantity of computer lab 200, and then has guaranteed the cooling effect to computer lab 200, has guaranteed the cooling performance of evaporation cooling air conditioning unit self of taking heat recovery simultaneously.

Therefore, the evaporative cooling air conditioning unit with heat recovery provided by this embodiment skillfully uses the water source heat pump unit 110 and the cooling system 102 in cooperation, and skillfully associates the water source heat pump unit 110 and the cooling system 102 through the heat recovery device 108, so that not only can the temperature of the machine room 200 be reduced, but also the heat inside the machine room 200 can be collected, and the heat can be supplemented to the equipment such as the water source heat pump unit 110, and the performance of the equipment such as the water source heat pump unit 110 can be improved; in addition, the cold air can be ensured to flow smoothly in the air inlet channel 104, and particularly, when the evaporative cooling air conditioning unit with heat recovery does not need to operate in a heat recovery mode, the cold air can be ensured to flow smoothly, so that the efficient cooling of the machine room 200 by the cooling system 102 is ensured.

In the specific embodiment, in the operation process of the evaporative cooling air conditioning unit with heat recovery, the heat recovery device 108 is in full contact with hot air in the exhaust passage 106, so that heat collection is realized; the collected heat can be directly supplied to the water source heat pump unit 110 for heating, thereby improving the heating capacity of the water source heat pump unit 110 and improving the working performance of the water source heat pump unit 110.

As shown in fig. 1, a second embodiment of the present invention provides an evaporative cooling air conditioning unit with heat recovery, which can be used for cooling a machine room 200 of a data center to ensure that the temperature inside the machine room 200 is proper and ensure the use environment of electrical equipment in the machine room 200. The evaporative cooling air conditioning unit with heat recovery comprises a cooling system 102 and a heat recovery device 108 which are matched; the cooling system 102 comprises an air inlet channel 104 and an air outlet channel 106 which are communicated with the machine room 200; the heat recovery device 108 is disposed in the exhaust duct 106.

In this embodiment, further, as shown in fig. 1, the heat recovery device 108 includes a heat exchange member 112. The heat exchange component 112 is arranged in the exhaust passage 106; in the movement process of the evaporative cooling air conditioning unit with heat recovery, hot air in the exhaust channel 106 fully contacts with the heat exchange component 112, and then continuously contacts with the heat exchange component 112 for heat exchange, and meanwhile, liquid in the heat exchange component 112 is heated, so that heat is collected. In addition, because the hot air after heat exchange with the machine room 200 has relatively high temperature, the heat exchange effect of the part of hot air and the heat exchange component 112 can be ensured, and the collection efficiency of heat is improved.

In this embodiment, further, the heat recovery device 108 further includes a heat conducting member (not shown in the figure). Wherein the heat conducting member is disposed on the heat exchanging member 112 and extends toward the inlet end of the exhaust passage 106. That is, the hot air flowing out of the machine room 200 first contacts the heat conducting member and then passes through the heat exchanging member 112; the heat conducting member has a good heat conducting effect, and can exchange heat with hot air first and transfer the obtained heat to the heat exchanging member 112. Meanwhile, the heat exchange component 112 can still contact with hot air for heat exchange, so that the heat exchange area between the heat recovery device 108 and the hot air is enlarged, and the heat exchange effect of the heat recovery device 108 is improved.

In a specific embodiment, the heat conducting component can adopt heat conducting fins, and a heat exchange gap is ensured between two adjacent heat conducting fins, so that hot air can flow through the heat exchange gap.

In this embodiment, further, the heat recovery device 108 further includes a rotating structure. Wherein, the rotating structure is rotatably arranged on the inner wall of the exhaust channel 106, and the heat exchange component 112 is connected with the rotating structure and can be switched between the first station and the second station. When the heat exchanging component 112 is at the first station, the heat exchanging component 112 is protruded from the inner wall of the air exhausting channel 106, so as to ensure that the heat exchanging component and the air flow in the air exhausting channel 106 have enough heat exchanging area; when the heat exchanging component 112 is at the second station, the heat exchanging component 112 is attached to the inner wall of the air exhausting channel 106 to ensure that the air blown from the machine room 200 can smoothly flow out, and the wall heat exchanging component 112 obstructs the air flow in the air exhausting channel 106.

That is, the heat exchanging member 112 can be driven to switch between the first station and the second station by the arrangement of the rotating structure in the embodiment. When the evaporative cooling air conditioning unit with heat recovery operates in a heat recovery mode, the heat exchange component 112 is positioned at the first station and fully contacts with the airflow in the exhaust channel 106, so that the heat exchange area and the heat exchange efficiency are ensured; when the evaporative cooling air conditioning unit with heat recovery does not need to operate in a heat recovery mode, the heat exchange component 112 is positioned at the second station and attached to the inner wall of the exhaust channel 106, so that the heat exchange component 112 does not influence the gas flow in the exhaust channel 106.

As shown in fig. 2, a third embodiment of the present invention provides an evaporative cooling air conditioning unit with heat recovery, which can be used for cooling a machine room 200 of a data center, so as to ensure that the temperature inside the machine room 200 is proper and ensure the service environment of electrical equipment in the machine room 200. The evaporative cooling air conditioning unit with heat recovery comprises a cooling system 102 and a heat recovery device 108 which are matched; the cooling system 102 includes an air intake duct 104 and an air exhaust duct 106 that are in communication with the machine room 200.

In this embodiment, further, as shown in fig. 2, the heat recovery device 108 includes a heat exchange component 112 and a bypass component 114 in cooperation. The heat exchanging member 112 is provided in the exhaust duct 106, and the bypass member 114 is provided in the exhaust duct 106 at a space between the heat exchanging member 112 and an inner wall of the exhaust duct 106. The bypass component 114 is matched with the heat exchange component 112 and is arranged at the same position in the exhaust channel 106, so that whether heat in the exhaust channel 106 is collected or not can be selected by controlling the opening or closing of the bypass component 114, and the switching of different operating modes of the evaporative cooling air conditioning unit with heat recovery is realized.

In addition, when the heat in the exhaust channel 106 does not need to be collected, the airflow in the exhaust channel 106 directly passes through the bypass component 114, so that the wind resistance of the heat recovery device 108 in the exhaust channel 106 can be reduced, the smooth flow of the hot air in the exhaust channel 106 is ensured, and the efficient cooling of the machine room 200 by the cooling system 102 is further ensured.

In this embodiment, further, the opening degree of the bypass member 114 is inversely related to the amount of heat to be recovered by the heat recovery device 108. That is, during the use, the opening degree of the bypass part 114 can be adjusted more practically to adjust the contact area between the air exhausted from the machine room 200 and the heat exchange part 112, thereby adjusting the heat recovery amount of the heat exchange part 112.

In an embodiment, when the heat recovery device 108 needs to recover less heat, the opening of the bypass component 114 can be controlled to be larger to collect less heat; when the heat recovery device 108 needs to recover a larger amount of heat, the opening of the bypass member 114 can be controlled to be smaller to collect more heat.

In this embodiment, further, the evaporative cooling air conditioning unit with heat recovery further includes a detection device (not shown in the figure) and a control device (not shown in the figure), the detection device can be used for detecting the outdoor temperature, and the control device is also electrically connected to the bypass component 114 and can be used for controlling the operation of the bypass component 114 according to the detection result of the detection device, so that the evaporative cooling air conditioning unit with heat recovery automatically switches between the first operation mode and the second operation mode.

In an embodiment, when the detection device detects that the outdoor environment is less than or equal to the preset temperature, the control device automatically controls the bypass component 114 to close, and ensures that the evaporative cooling air conditioning unit with heat recovery operates in the first operating mode. In the first mode of operation, the bypass feature 114 is closed, the heat exchange feature 112 is operational and heat is collected.

In an embodiment, when the detection device detects that the outdoor environment is higher than the preset temperature, the control device automatically controls the bypass component 114 to be opened, and ensures that the evaporative cooling air conditioning unit with heat recovery operates in the second working mode. In the second operation mode, the bypass section 114 is turned on, and the heat exchanging section 112 is not operated, and heat in the exhaust duct 106 is not collected.

Therefore, the evaporative cooling air conditioning unit with heat recovery provided by the embodiment can realize self control based on the outdoor temperature, can realize dynamic adjustment according to the outdoor temperature in the actual use process, avoids the defect of frequent operation of a user, and can realize full-automatic control.

In this embodiment, as shown in fig. 2, the bypass component 114 may adopt an electrically controlled valve, and specifically, may adopt an electrically controlled air valve, and may be controlled to open or close according to actual needs, so as to switch between different modes of operation of the evaporative cooling air conditioning unit with heat recovery.

In the embodiment, when the evaporative cooling air conditioning unit with heat recovery is in a normal mode (i.e. in a non-heat recovery mode), the electrically controlled valve is controlled to open, and at this time, the air flow in the exhaust passage 106 passes through the bypass component 114 and does not pass through the heat exchange component 112, and at this time, the heat in the exhaust passage 106 is not collected.

In the embodiment, when the evaporative cooling air conditioning unit with heat recovery is in the heat recovery mode, the electric control valve is controlled to be closed, and at this time, the air flow in the exhaust channel 106 passes through the heat exchange component 112 to collect heat in the exhaust channel 106.

In addition, the opening degree of the electric control valve can be adjusted. That is, in the use process of the evaporative cooling air conditioning unit with heat recovery, the opening of the electric control valve can be adjusted according to actual needs, so that partial air flow in the exhaust channel 106 passes through the heat exchange component 112, and the adjustment of the heat collection amount is realized.

As shown in fig. 1 and fig. 2, a fourth embodiment of the present invention provides an evaporative cooling air conditioning unit with heat recovery, which can be used for cooling a machine room 200 of a data center, so as to ensure that the temperature inside the machine room 200 is proper and ensure the service environment of electrical equipment in the machine room 200. The evaporative cooling air conditioning unit with heat recovery comprises a cooling system 102 and a heat recovery device 108 which are matched; the cooling system 102 comprises an air inlet channel 104 and an air outlet channel 106 which are communicated with the machine room 200; the heat recovery device 108 is disposed in the exhaust duct 106.

In this embodiment, further, as shown in fig. 1 and 2, the cooling system 102 further includes a fresh air valve 116 and an exhaust air valve 138. The fresh air valve 116 is disposed at the inlet end of the air intake duct 104, and may be used to open or close the inlet end of the air intake duct 104. In this way, during the operation of the evaporative cooling air conditioning unit with heat recovery, the fresh air valve 116 may be opened to introduce fresh air in the external environment into the machine room 200, and the air temperature in the external environment itself is reduced, so that the working strength of the cooling system 102 may be reduced, and the energy saving effect may be achieved. In addition, the exhaust valve 138 is disposed at the outlet end of the exhaust channel 106, so as to ensure that the heat-exchanged gas can be exhausted from the exhaust valve 138.

In this embodiment, further, as shown in fig. 1 and 2, the air intake channel 104 has an air mixing section 118, and the cooling system 102 further includes an air mixing valve 120. The air mixing valve 120 communicates the air mixing section 118 of the air exhaust channel 106 and the air inlet channel 104, when the air mixing valve 120 is opened, hot air subjected to heat exchange can directly enter the air mixing section 118 of the air inlet channel 104 again through the air mixing valve 120 and is mixed with air entering the air inlet channel 104 from the fresh air valve 116, and then enters the machine room 200 through the air inlet channel 104 together, so that the temperature of the machine room 200 is reduced.

In addition, since the air entering the air mixing section 118 from the air mixing valve 120 already exchanges heat with the heat recovery device 108, the air does not have a high temperature, and the smooth and efficient operation of the whole cooling system 102 can also be ensured.

In this embodiment, as shown in fig. 1 and 2, the air inlet channel 104 has a filter section 122, and the filter section 122 is communicated with the air mixing section 118 and is closer to the outlet end of the air outlet channel than the air mixing section 118. The temperature reduction system 102 also includes a filter 124, the filter 124 being disposed in the filter stage 122. In this way, the air entering the machine room 200 first passes through the filtering device 124 and is filtered, so as to ensure the internal environment of the machine room 200 on the basis of cooling the machine room 200, and particularly to prevent external dust from entering the machine room 200.

In this embodiment, further, as shown in fig. 1 and 2, the air intake duct 104 further has an air supply section 126, and the air supply section 126 communicates with the filter section 122 of the air intake duct 104. The desuperheating system 102 also includes an evaporative cooling device 128, the evaporative cooling device 128 being disposed in the air supply section 126. In this way, the air entering the machine room 200 first passes through the evaporative cooling device 128 and is cooled, and it is ensured that the temperature of the air entering the machine room 200 is low enough to ensure the cooling effect on the machine room 200.

In addition to the first to fourth embodiments, as shown in fig. 1 and fig. 2, the cooling system 102 further includes an exhaust fan 130 and a blower 132 used in cooperation. The blower 132 operates to drive the outside air to the inside of the machine room 200 through the air inlet passage 104, so as to reduce the temperature of the machine room 200, and realize the cooling treatment of the machine room 200. The exhaust fan 130 operates to drive the air inside the machine room 200 to the outside of the machine room 200 through the exhaust duct 106 or to re-drive the air inside the machine room 200 to the intake duct 104 through the exhaust duct 106, ensuring the flow of the air.

On the basis of the first to fourth embodiments, as shown in fig. 1 and fig. 2, further, the heat exchanging component 112 is a coil, and the evaporative cooling air conditioning unit with heat recovery further includes a pipeline 134. The coil is connected to the S/H110 via a pipe 134, and the liquid in the S/H110 can flow through the coil. In addition, the coil is located in the exhaust passage 106 to ensure that the liquid in the coil is heated when the air in the exhaust passage 106 passes through the coil, thereby realizing the collection of heat.

As shown in fig. 1 and fig. 2, a first embodiment of the present invention provides an evaporative cooling air conditioning unit with heat recovery, which includes a cooling system 102 and a heat recovery device 108; the cooling system 102 comprises an air inlet channel 104 and an air outlet channel 106 which are communicated with the machine room 200, cold air can be conveyed into the machine room 200 through the air inlet channel 104 when the cooling system 102 operates, hot air is discharged out of the machine room 200 from the air outlet channel 106 after heat exchange, and circulating cooling of air is achieved.

In this embodiment, as shown in fig. 1 and fig. 2, the evaporative cooling air conditioning unit with heat recovery further includes a water source heat pump unit 110 used in cooperation with the cooling system 102, and the water source heat pump unit 110 is in communication with the heat recovery device 108. The collected heat can be directly supplied to the water source heat pump unit 110 for heating, thereby improving the heating capacity of the water source heat pump unit 110 and improving the working performance of the water source heat pump unit 110.

In this embodiment, further, as shown in fig. 1, the heat recovery device 108 includes a heat exchange member 112. The heat exchange component 112 is arranged in the exhaust channel 106, and the hot air in the exhaust channel 106 is in contact with the heat exchange component 112 for heat exchange, so that the heat collection is realized. Further, as shown in fig. 2, the heat recovery device 108 further includes a bypass member 114. The bypass component 114 is arranged at the interval between the heat exchange component 112 and the inner wall of the exhaust channel 106, and whether the heat in the exhaust channel 106 is collected or not can be selected by controlling the opening or closing of the bypass component 114, so that the switching of different running modes of the evaporative cooling air conditioning unit with heat recovery is realized. Specifically, the bypass member 114 may employ an electrically controlled valve.

In this embodiment, further, as shown in fig. 1 and fig. 2, the evaporative cooling air conditioning unit with heat recovery further includes a fresh air valve 116 and an exhaust air valve 138, wherein the fresh air valve 116 is disposed at the inlet end of the air inlet channel 104 and can be used to open or close the inlet end of the air inlet channel 104; the exhaust valve 138 is disposed at the outlet end of the exhaust channel 106 to ensure that the heat-exchanged gas can be exhausted from the exhaust valve 138. The cooling system 102 further includes an air mixing valve 120, and the air mixing valve 120 connects the air mixing section 118 of the air exhaust channel 106 and the air intake channel 104, so as to realize the recycling of air. The cooling system 102 further includes a filtering device 124, and the filtering device 124 is disposed on the filtering section 122 of the air inlet channel 104 to prevent external dust from entering the machine room 200. The cooling system 102 further includes an evaporative cooling device 128, and the evaporative cooling device 128 is disposed in the air supply section 126 of the air inlet channel 104 to ensure the cooling effect on the machine room 200. The cooling system 102 further includes an exhaust fan 130 and a blower 132 that cooperate to provide air flow.

In addition, as shown in fig. 1 and fig. 2, the heat exchanging component 112 is a coil, the coil is communicated with the water source heat pump unit 110 through a pipeline 134, liquid in the water source heat pump unit 110 can flow through the inside of the coil, and gas in the exhaust passage 106 can heat the liquid in the coil, so as to collect heat.

As shown in fig. 1 and fig. 2, the evaporative cooling air conditioning unit with heat recovery provided in this embodiment can not only cool the machine room 200, but also collect heat inside the machine room 200, and supplement the heat to the devices such as the water source heat pump unit 110, so as to improve the performance of the devices such as the water source heat pump unit 110; moreover, the smooth flow of the cold air in the air inlet channel 104 can be ensured, especially when the air conditioning system does not need to operate in a heat recovery mode, the smooth flow of the cold air can be ensured, and further, the efficient cooling of the machine room 200 by the cooling system 102 is ensured.

As shown in fig. 1 and fig. 2, the evaporative cooling air conditioning unit with heat recovery provided by the present invention can be applied to a machine room 200 of a data center, a heat exchange component 112 is added to an exhaust passage 106 of a cooling system 102 of the unit, and in a heating season time period in winter, high temperature hot air exhausted from the machine room 200 by the heat exchange component 112 absorbs heat to increase the outlet water temperature of the heat exchange component 112, maintain the return water temperature when the water source heat pump unit 110 is operating efficiently, increase the operating COP of the heating water source heat pump unit 110, reduce power consumption, and achieve energy saving; meanwhile, the evaporative cooling air conditioning unit with heat recovery can cool the machine room 200 of the data center, and the operation cost is comprehensively reduced.

Therefore, as shown in fig. 1 and fig. 2, the evaporative cooling air conditioning unit with heat recovery provided in this embodiment can not only cool the machine room 200, but also collect heat inside the machine room 200, and supply the heat to the equipment such as the water source heat pump unit 110, so as to improve the performance of the equipment such as the water source heat pump unit 110; moreover, the smooth flow of the cold air in the air inlet channel 104 can be ensured, especially when the air conditioning system does not need to operate in a heat recovery mode, the smooth flow of the cold air can be ensured, and further, the efficient cooling of the machine room 200 by the cooling system 102 is ensured.

Meanwhile, as shown in fig. 1 and 2, a bypass part 114 is added at the heat exchange part 112, and in the heat recovery mode, the bypass part 114 is closed, so that the high-temperature hot air exhausted from the machine room 200 passes through the heat exchange part 112 for heat exchange treatment; in the non-heat recovery mode, the bypass part 114 is fully opened, and the high-temperature hot air exhausted from the machine room 200 mainly passes through the bypass part 114, so that the wind resistance at the heat exchange part 112 is further reduced, the power consumption of the exhaust fan 130 is reduced, and further energy saving is realized. Specifically, the bypass component 114 is located in the exhaust channel 106, and may be located at the upper portion of the heat exchanging component 112, or may be located at the lower portion of the heat exchanging component 112, and the size of the bypass component may also be specifically determined according to the space condition, which is convenient to implement and design.

In the using process, when the outdoor environment temperature T is detected to be less than or equal to a (a can be set and is set according to actual requirements), the evaporative cooling air conditioning unit with heat recovery automatically enters a heat recovery mode, and at the moment, the bypass component 114 is intelligently closed; when the outdoor environment temperature T & gt a (a can be set and is set according to actual requirements) is detected, the evaporative cooling air conditioning unit with heat recovery automatically exits the heat recovery mode, at the moment, the bypass component 114 is intelligently opened, and hot air exhausted by the machine room 200 is mainly exhausted through the bypass component 114.

In a specific embodiment, as shown in fig. 1 and fig. 2, the water source heat pump unit 110 is connected to the pipe tray of the heat recovery device 108 through a pipe 134, and the liquid in the water source heat pump unit 110 circulates through the pipe tray and can be heated in the pipe tray, so that the return water temperature of the water source heat pump unit 110 is higher than the outlet water temperature, and the heat discharged from the machine room 200 is supplied to the water source heat pump unit 110. In addition, the water source heat pump unit 110 is communicated with the energy storage tank 136 and can provide a heat source for the energy storage tank 136.

In the embodiment, as shown in fig. 1 and fig. 2, along the air inlet direction of the air inlet channel 104, the air inlet channel 104 sequentially includes an air mixing section 118, a filtering section 122 and an air supply section 126 which are communicated with each other. Wherein, the air mixing section 118 is provided with an air mixing valve 120, and the air mixing valve 120 can conduct the air mixing section 118 of the exhaust channel 106 and the air inlet channel 104 when opened; a filtering device 124 is arranged in the filtering section 122; a blower 132 and an evaporative cooling device 128 are disposed within the blowing section 126.

In a particular embodiment, as shown in fig. 1 and 2, the room 200 has a room 202 and a return air layer 204. Wherein, electrical equipment is stored in the room 202, and the air inlet channel 104 is communicated with the room 202; the return air layer 204 is formed on the top of the room 202 and is located on the ceiling of the room 202, and the return air layer 204 is in communication with the exhaust duct 106.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a take evaporative cooling air conditioning unit of heat recovery, can be used to the cooling of computer lab, its characterized in that includes:

the cooling system comprises an air inlet channel and an air exhaust channel which are communicated with the machine room;

the heat recovery device is arranged in the exhaust channel and can be used for recovering the heat of the exhaust channel;

and the water source heat pump unit is communicated with the heat recovery device, and the heat recovery device can be used for supplying heat to the water source heat pump unit.

2. The evaporative cooling air conditioning unit with heat recovery as set forth in claim 1, wherein the heat recovery device includes:

and the heat exchange component is arranged in the exhaust channel.

3. The evaporative cooling air conditioning unit with heat recovery as set forth in claim 2, wherein the heat recovery device further comprises:

and the bypass component is arranged in the exhaust channel and is positioned between the heat exchange component and the inner wall of the exhaust channel.

4. Evaporative cooling air conditioning unit with heat recovery as set forth in claim 3,

the bypass component is an electric control valve;

the heat exchange component is a coil.

5. Evaporative cooling air conditioning unit with heat recovery according to any of claims 1 to 4,

the fresh air valve is arranged at the inlet end of the air inlet channel;

and the exhaust valve is arranged at the outlet end of the exhaust channel.

6. Evaporative cooling air conditioning unit with heat recovery according to any of claims 1 to 4,

the air inlet channel is provided with an air mixing section;

the cooling system further comprises an air mixing valve, the air mixing valve is communicated with the exhaust channel and the air mixing section, and the heat recovery device is located between the inlet end of the exhaust channel and the air mixing valve.

7. Evaporative cooling air conditioning unit with heat recovery according to any of claims 1 to 4,

the air inlet channel is provided with a filtering section;

the cooling system further comprises a filtering device, and the filtering device is arranged in the filtering section.

8. Evaporative cooling air conditioning unit with heat recovery according to any of claims 1 to 4,

the air inlet channel is provided with an air supply section;

the cooling system further comprises an evaporative cooling device, and the evaporative cooling device is arranged in the air supply section.

9. The evaporative cooling air conditioning unit with heat recovery as set forth in any one of claims 1 to 4, wherein the temperature reduction system further comprises:

the exhaust fan is arranged in the exhaust channel;

and the air feeder is arranged on the air inlet channel.

10. The evaporative cooling air conditioning unit with heat recovery as set forth in any one of claims 1 to 4, further comprising:

the pipeline is communicated with the heat recovery device and the water source heat pump unit;

and the energy storage tank is communicated with the water source heat pump unit.