CN213586730U

CN213586730U - Cooling system

Info

Publication number: CN213586730U
Application number: CN202022203235.4U
Authority: CN
Inventors: 闫健
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-29
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a cooling system relates to refrigeration air conditioner technical field, for solving indirect evaporative cooler, direct evaporative cooler and refrigeration air conditioner contact less and indirect evaporative cooler or direct evaporative cooler to the shorter problem of the utilization time of nature cold source and invent. A cooling system comprises an indirect evaporative cooler, a direct evaporative cooler and an air-conditioning indoor unit, wherein a primary air outlet of the indirect evaporative cooler is communicated with an air inlet of the direct evaporative cooler, and an air outlet of the direct evaporative cooler is communicated with an air duct of the air-conditioning indoor unit. The utility model is used for the cooling.

Description

Cooling system

Technical Field

The utility model relates to a refrigeration air conditioner technical field especially relates to a cooling system.

Background

With the development of communication technology, communication operators build a large number of communication bureau rooms, a large number of electronic devices are installed in the communication bureau rooms, and when the electronic devices operate, the electronic devices can generate a large amount of heat to raise the temperature in the communication bureau rooms.

The existing refrigeration equipment is generally a refrigeration air-conditioning system, and heat dissipation and cooling of electronic equipment are realized through the refrigeration air-conditioning system, but the energy consumption of the refrigeration air-conditioning system during operation is high and approximately accounts for about 45% of the energy consumption of the whole communication office room.

At present, with the attention of people on energy conservation and emission reduction, communication bureau rooms have feasible schemes in the aspects of energy conservation and emission reduction, and the schemes generally adopt an indirect evaporative cooler or a direct evaporative cooler for cooling, wherein the indirect evaporative cooler or the direct evaporative cooler utilizes a natural cold source (such as cooling water) to cool outdoor air and discharge low-temperature air to the indoor space so as to achieve the effects of refrigeration and cooling, thereby reducing the working time of a refrigeration air conditioner and reducing the electric energy consumption of the refrigeration air conditioner. However, the indirect evaporative cooler or the direct evaporative cooler in the schemes is generally mutually independent from the original refrigeration air conditioner, the indirect evaporative cooler or the direct evaporative cooler and the refrigeration air conditioner have little physical and logical connection, and the indirect evaporative cooler or the direct evaporative cooler is provided with an independent air duct and an independent fan, so the cost is higher. In addition, the existing scheme is generally only provided with one indirect evaporative cooler or one direct evaporative cooler, the utilization time of a natural cold source is short, the generated cold quantity is less, and the refrigeration air conditioner still needs to work for a long time, so that the refrigeration air conditioner still consumes a large amount of electric energy, and the energy-saving effect is not favorably improved.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a cooling system, comprehensive utilization indirect evaporative cooler, direct evaporative cooler and refrigeration air conditioner increase indirect evaporative cooler, direct evaporative cooler simultaneously and to the time of utilization of nature cold source, improve energy-conserving effect.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

an embodiment of the utility model provides a cooling system, machine in indirect evaporative cooler, direct evaporative cooler and air conditioning, indirect evaporative cooler's primary air outlet with direct evaporative cooler's air intake intercommunication, direct evaporative cooler's air outlet with the wind channel intercommunication of machine in the air conditioning.

Compared with the prior art, the utility model discloses cooling system includes machine in indirect evaporative cooler, direct evaporative cooler and the air conditioning, and the three communicates in proper order, and direct evaporative cooler's air outlet communicates on the wind channel of machine in the air conditioning. The indirect evaporative cooler, the direct evaporative cooler and the air-conditioning indoor unit are communicated in sequence, so that the indirect evaporative cooler and the direct evaporative cooler can utilize the air duct and the fan of the air-conditioning indoor unit, an independent air duct and an independent fan are not required to be arranged, and the construction cost of the cooling system is reduced. In addition, the primary air is cooled twice through the indirect evaporative cooler and the direct evaporative cooler, the processing time of a natural cold source to the primary air is prolonged, and the cooling capacity of the primary air is improved, so that the service time of the refrigeration air conditioner is shortened, the electric energy consumption of the refrigeration air conditioner is reduced, and the cooling system is more energy-saving.

In the embodiment of the application, the air-conditioning indoor unit is provided with an evaporator, and the air outlet of the direct evaporative cooler is communicated between the evaporator and the air outlet of the air-conditioning indoor unit.

In the embodiment of the application, the air outlet of the direct evaporative cooler is communicated with the air duct of the indoor unit of the air conditioner through a connecting pipeline, and an air volume regulating valve is arranged in the connecting pipeline.

In the embodiment of this application, still be equipped with the fire prevention valve in the connecting tube, the fire prevention valve is located air regulation valve with between the air conditioning indoor set.

In the embodiment of the application, a first air inlet valve is arranged on a shell of the air-conditioning indoor unit and is arranged at an air inlet of an air duct of the air-conditioning indoor unit.

In the embodiment of the application, a side air inlet is further formed in the shell of the air-conditioning indoor unit, the side air inlet is communicated with the air duct of the air-conditioning indoor unit, the side air inlet is located between the evaporator and the air outlet of the air-conditioning indoor unit, and a second air inlet valve is arranged at the side air inlet.

In an embodiment of the present application, further comprising a control system, the control system comprising:

a temperature sensor for detecting an outdoor temperature;

a controller electrically connected to the air volume adjusting valve, the first air inlet valve and the second air inlet valve, respectively, and configured to control opening or closing of the air volume adjusting valve, the first air inlet valve and the second air inlet valve according to a temperature value detected by the temperature sensor

In the embodiment of this application, the machine sets up on indoor floor in the air conditioning, the below on indoor floor is equipped with air supply channel, the air outlet of machine in the air conditioning with air supply channel's air intake intercommunication, be equipped with the forced draught blower in the air supply channel, air supply channel's air outlet is used for communicateing the interior space.

In the embodiment of this application, indirect evaporative cooler's casing is provided with primary air inlet, primary air outlet, secondary air inlet and secondary air outlet, and the primary air removes from a left side to the right side along the horizontal direction, and secondary air removes from the top down along vertical direction, primary air inlet and primary air outlet pass through heat transfer coil intercommunication, indirect evaporative cooler includes exhaust fan, a plurality of first nozzle, first circulating water pump and first catch basin, the exhaust fan is located secondary air outlet, first circulating water pump passes through pipeline and a plurality of first nozzle intercommunication, exhaust fan, a plurality of first nozzle heat transfer coil with first catch basin is located in indirect evaporative cooler's the casing, and follow vertical direction from the top down and arrange in proper order.

In the embodiment of this application, direct evaporative cooler's casing is provided with air intake and air outlet, and the primary air removes from a left side to the right side along the horizontal direction, direct evaporative cooler includes a plurality of second nozzles, trickle packs, second circulating water pump and second catch basin, second circulating water pump passes through the pipeline and a plurality of the second nozzle intercommunication is a plurality of the second nozzle the trickle pack with the second catch basin is located direct evaporative cooler's casing, and follow vertical direction from the top down and arrange in proper order.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cooling system according to an embodiment of the present invention.

Reference numerals:

100. an indirect evaporative cooler; 200. a direct evaporative cooler; 210. a second nozzle; 220. water spraying and filling; 230. a second circulating water pump; 240. a second catch basin; 300. an air-conditioning indoor unit; 310. an evaporator; 320. a first air inlet valve; 330. a second air inlet valve; 340. a blower; 350. a compressor; 400. connecting a pipeline; 500. an air volume adjusting valve; 600. a fire damper; 700. an indoor floor; 800. an air supply channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic structural diagram of a cooling system according to an embodiment of the present invention, in which a denotes primary air, b denotes secondary air, and c denotes an indoor space. As shown in fig. 1, the embodiment of the utility model provides a cooling system, including indirect evaporative cooler 100, direct evaporative cooler 200 and air conditioning indoor unit 300, wherein, indirect evaporative cooler 100 can indirectly cool off primary air, direct evaporative cooler 200 can directly cool off primary air, the casing of air conditioning indoor unit 300 is formed with the wind channel, install compressor 350 in the air conditioning indoor unit 300, compressor 350 is used for compressing the refrigerant, realize refrigeration cycle, air conditioning indoor unit 300 and air condensing units are connected, install the condenser in the air conditioning outdoor unit, throttling arrangement and pipeline etc., evaporative cooler's primary air outlet and direct evaporative cooler 200's air intake intercommunication, direct evaporative cooler 200's air outlet and air conditioning indoor unit 300's wind channel intercommunication.

Compared with the prior art, the utility model discloses cooling system includes indirect evaporative cooler 100, machine 300 in direct evaporative cooler 200 and the air conditioning, the three communicates in proper order, direct evaporative cooler 200's air outlet communicates on the wind channel of machine 300 in the air conditioning, thereby make indirect evaporative cooler 100, direct evaporative cooler 200 and machine 300 interrelation in the air conditioning, make indirect evaporative cooler 100, direct evaporative cooler 200 can utilize the wind channel and the fan of machine 300 in the air conditioning, and need not set up independent wind channel and fan, cooling system's construction cost has been reduced. In addition, the primary air is cooled twice through the indirect evaporative cooler 100 and the direct evaporative cooler 200, the processing time of the natural cold source to the primary air is prolonged, and the cooling capacity of the primary air is improved, so that the service time of the refrigeration air conditioner is shortened, the power consumption of the refrigeration air conditioner is reduced, and the cooling system is more energy-saving.

In order to avoid the heat exchange between the primary air and the evaporator 310, in some embodiments, the indoor unit 300 is provided with the evaporator 310, and the air outlet of the direct evaporative cooler 200 is communicated between the evaporator 310 and the air outlet of the indoor unit 300, so that the primary air is directly exhausted from the air outlet of the indoor unit 300 without passing through the evaporator 310, and the heat exchange between the primary air and the evaporator 310 is avoided.

In order to communicate the air outlet of the direct evaporative cooler 200 with the air duct of the indoor unit 300 of the air conditioner, as shown in fig. 1, the cooling system includes a connecting pipe 400, and the air outlet of the direct evaporative cooler 200 is communicated with the air duct of the indoor unit 300 of the air conditioner through the connecting pipe 400. Generally, the direct evaporative cooler 200 is located outdoors, the indoor unit 300 is located indoors, the connection between the two units needs to pass through the wall, and the two units can pass through the wall through a connecting channel to communicate with each other, so that the air outlet of the direct evaporative cooler 200 is communicated with the air duct of the indoor unit 300.

In order to control the amount of primary air entering the indoor unit 300 of the air conditioner, as shown in fig. 1, an air volume adjusting valve 500 is disposed in the connecting pipe 400, and the air volume adjusting valve 500 can control the amount of primary air entering by controlling the opening of the valve, so that the adjustment is facilitated.

The air-conditioning indoor unit 300 is installed in a machine room in which a large number of electronic devices are installed, and there may be a fire hazard. In some embodiments, as shown in fig. 1, a fire damper 600 is further disposed in the connection pipe 400, the fire damper 600 is located between the air volume adjusting valve 500 and the indoor unit 300 of the air conditioner, the fire damper 600 is in an open state during normal operation, and when the temperature is too high or a fire occurs, the fire damper 600 is changed from open to closed, so as to block high temperature or smoke.

In order to realize normal air intake of the refrigeration air conditioner, in some embodiments, as shown in fig. 1, a first air intake valve 320 is disposed on a casing of the air conditioner indoor unit 300, the first air intake valve 320 is disposed at an air intake of an air duct of the air conditioner indoor unit 300, and when the first air intake valve 320 is opened, air entering the air duct of the air conditioner indoor unit 300 from the first air intake valve 320 can exchange heat through the evaporator 310, so as to achieve the purpose of refrigeration.

In order to increase the working mode of the cooling system, in some embodiments, as shown in fig. 1, a side air inlet is further formed on a casing of the indoor unit 300, the side air inlet is communicated with an air duct of the indoor unit 300, the side air inlet is located between the evaporator 310 and an air outlet of the indoor unit 300, a second air inlet valve 330 is disposed at the side air inlet, when the second air inlet valve 330 is opened, air entering the air duct of the indoor unit 300 from the second air inlet valve 330 does not exchange heat through the evaporator 310, and provides outdoor air for the indoor unit 300, and the air can be mixed with primary air cooled by the indirect evaporative cooler 100 and the direct evaporative cooler 200 to meet different working condition requirements.

The cooling system comprises an indirect evaporative cooler 100, a direct evaporative cooler 200 and an air conditioner indoor unit 300, and is used for controlling the indirect evaporative cooler 100, the direct evaporative cooler 200 and the air conditioner indoor unit 300 simultaneously so as to achieve different working modes. In some embodiments, the cooling system further comprises a control system, the control system comprises a temperature sensor for detecting the outdoor temperature and a controller electrically connected to the air volume adjusting valve 500, the first air inlet valve 320 and the second air inlet valve 330, respectively, and the controller can control the opening or closing of the air volume adjusting valve 500, the first air inlet valve 320 and the second air inlet valve 330 according to the temperature value detected by the temperature sensor.

The controller can control the opening or closing of the air volume adjusting valve 500, the first air inlet valve 320 and the second air inlet valve 330 according to the detection value of the temperature sensor, and meanwhile, the controller can also control the opening or closing of the indirect evaporative cooler 100 to realize different working modes, wherein the specific working modes are as follows:

suppose the outdoor temperature is T, the first temperature is T1, and the second temperature is T2, where T1 < T2.

When T < T1, the outdoor temperature is low, and the temperature of the primary air obtained through the cooling process of the indirect evaporative cooler 100 and the direct evaporative cooler 200 is lower than the indoor temperature requirement, so that the primary air needs to be mixed with the outdoor air to slightly raise the temperature of the primary air, and at this time, the air volume adjusting valve 500 is opened, the first air inlet valve 320 is closed, and the second air inlet valve 330 is opened.

When T1 is more than T and less than T2, the cooling process of the indirect evaporative cooler 100 and the direct evaporative cooler 200 can meet the indoor refrigeration requirement, and at the moment, the air volume adjusting valve 500 is opened, and the first air inlet valve 320 and the second air inlet valve 330 are closed. In this process, if the cooling demand of the room can be satisfied only by the cooling process of the direct-evaporative cooler 200, the indirect-evaporative cooler 100 may be controlled to be turned off by the controller, i.e., the process preferentially uses the direct-evaporative cooler 200 for cooling.

When T2 is less than T, the temperature of the primary air obtained through the cooling process of the indirect evaporative cooler 100 and the direct evaporative cooler 200 is still higher than the indoor required temperature, the cooling process of the indirect evaporative cooler 100 and the direct evaporative cooler 200 cannot cool the indoor air, at this time, the air volume adjusting valve 500 and the second air inlet valve 330 are both closed, the first air inlet valve 320 is opened, namely, the process only uses a refrigeration air conditioner for refrigeration, and the indirect evaporative cooler 100 and the direct evaporative cooler 200 are not used for refrigeration.

The air outlet of the air duct of the indoor unit 300 of the air conditioner may be directly communicated with the indoor space, or may be communicated with the indoor space through the air supply passage 800. In order to improve the cooling effect of the cooling system, in some embodiments, as shown in fig. 1, the indoor unit 300 is disposed on an indoor floor 700, an air supply channel 800 is disposed below the indoor floor 700, an air outlet of the indoor unit 300 is communicated with an air inlet of the air supply channel 800, an air blower 340 is disposed in the air supply channel 800, an air outlet of the air supply channel 800 is used for communicating an indoor space, cooled primary air can reach the lower part of the floor of each indoor location through the air blower 340 and the air supply channel 800 first, and then reach the indoor location through an air outlet of the air supply channel 800 to cool the indoor location.

In order to realize indirect cooling of the primary air by the indirect evaporative cooler 100, in some embodiments, the housing of the indirect evaporative cooler 100 is provided with a primary air inlet, a primary air outlet, a secondary air inlet and a secondary air outlet, and the primary air moves from left to right along the horizontal direction, the secondary air moves from bottom to top along the vertical direction, the primary air inlet and the primary air outlet communicate through a heat exchange coil, the primary air moves in the heat exchange coil, the secondary air moves between the heat exchange coil and the housing of the indirect evaporative cooler 100, thereby enabling the primary air and the secondary air to be separated from each other, and the primary air can be indirectly cooled by the low-temperature secondary air.

Specifically, indirect evaporative cooler 100 includes the exhaust fan, a plurality of first nozzles, first circulating water pump and first catch basin, the exhaust fan is located the secondary air exit, first circulating water pump passes through pipeline and a plurality of first nozzle intercommunication, the exhaust fan, a plurality of first nozzles, heat transfer coil and first catch basin are located indirect evaporative cooler 100's casing, and arrange from the top down in proper order along vertical direction, the exhaust fan can make secondary air from the bottom up remove, a plurality of first nozzles and first circulating water pump are linked together, and accessible cooling water cools down the secondary air, make the temperature reduction of secondary air, and then the secondary air makes through heat transfer coil, can carry out the heat transfer with primary air, realize the indirect cooling to primary air.

In addition, in order to prevent external impurities from entering the indoor unit 300, an insect-proof net and a filter screen may be disposed at the primary air inlet to prevent the impurities from entering the indirect evaporative cooler 100, and thus the impurities from entering the indoor unit 300.

In order to achieve direct cooling of the primary air, in some embodiments, the housing of the direct evaporative cooler 200 is provided with air intakes and outlets, the primary air moving in a horizontal direction from left to right, as shown in fig. 1, the direct evaporative cooler 200 includes a plurality of second nozzles 210, a water spray packing 220, a second circulation water pump 230, and a second sump 240, the second circulation water pump 230 communicating with the plurality of second nozzles 210 through pipes, the plurality of second nozzles 210, the water spray packing 220, and the second sump 240 being located in a housing of the direct evaporative cooler 200, and are sequentially arranged from top to bottom in the vertical direction, the primary air enters the direct evaporative cooler 200 from the primary air outlet of the indirect evaporative cooler 100, contacts with the water spray packing 220, reduces the moving speed, thereby increasing the cooling time of the cooling water of the second nozzle 210 to the primary air and improving the cooling effect.

In order to save cost, only one first collecting tank and one second collecting tank 240 can be arranged, and the indirect evaporative cooler 100 and the direct evaporative cooler 200 share one collecting tank through a pipeline, so that the purpose of reducing cost is achieved.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cooling system is characterized by comprising an indirect evaporative cooler, a direct evaporative cooler and an air-conditioning indoor unit, wherein a primary air outlet of the indirect evaporative cooler is communicated with an air inlet of the direct evaporative cooler, and an air outlet of the direct evaporative cooler is communicated with an air duct of the air-conditioning indoor unit;

the air-conditioning indoor unit is provided with an evaporator, and an air outlet of the direct evaporative cooler is communicated between the evaporator and an air outlet of the air-conditioning indoor unit.

2. The cooling system as claimed in claim 1, wherein the air outlet of the direct evaporative cooler is communicated with the air duct of the indoor unit of the air conditioner via a connecting pipe, and an air volume adjusting valve is arranged in the connecting pipe.

3. The cooling system according to claim 2, wherein a fire damper is further provided in the connecting duct, and the fire damper is located between the air volume adjusting valve and the indoor unit of the air conditioner.

4. The cooling system of claim 2, wherein a first air inlet valve is disposed on a housing of the indoor unit, and the first air inlet valve is disposed at an air inlet of an air duct of the indoor unit.

5. The cooling system of claim 4, wherein a side air inlet is further formed in the casing of the indoor unit of the air conditioner, the side air inlet is communicated with an air duct of the indoor unit of the air conditioner, the side air inlet is located between the evaporator and an air outlet of the indoor unit of the air conditioner, and a second air inlet valve is arranged at the side air inlet.

6. The cooling system of claim 5, further comprising a control system, the control system comprising:

a temperature sensor for detecting an outdoor temperature;

and the controller is respectively electrically connected with the air volume regulating valve, the first air inlet valve and the second air inlet valve, and is configured to control the opening or closing of the air volume regulating valve, the first air inlet valve and the second air inlet valve according to the temperature value detected by the temperature sensor.

7. The cooling system according to any one of claims 1 to 6, wherein the indoor unit of the air conditioner is disposed on an indoor floor, an air supply passage is disposed below the indoor floor, an air outlet of the indoor unit of the air conditioner is communicated with an air inlet of the air supply passage, an air blower is disposed in the air supply passage, and an air outlet of the air supply passage is communicated with an indoor space.

8. A cooling system according to any one of claims 1-6, characterised in that the housing of the indirect evaporative cooler is provided with a primary air inlet, a primary air outlet, a secondary air inlet and a secondary air outlet, and the primary air moves from left to right along the horizontal direction, the secondary air moves from bottom to top along the vertical direction, the primary air inlet and the primary air outlet are communicated through a heat exchange coil, the indirect evaporative cooler comprises an exhaust fan, a plurality of first nozzles, a first circulating water pump and a first water collecting tank, the exhaust fan is positioned at the secondary air outlet, the first circulating water pump is communicated with a plurality of first nozzles through a pipeline, the exhaust fan, a plurality of first nozzle heat exchange coil with first catch basin is located in indirect evaporative cooler's the casing, and follow vertical direction from the top down and arrange in proper order.

9. The cooling system according to any one of claims 1 to 6, wherein the housing of the direct evaporative cooler is provided with an air inlet and an air outlet, the primary air moves from left to right in the horizontal direction, the direct evaporative cooler comprises a plurality of second nozzles, a water spray filler, a second circulating water pump and a second water collecting tank, the second circulating water pump is communicated with the plurality of second nozzles through a pipeline, and the plurality of second nozzles, the water spray filler and the second water collecting tank are positioned in the housing of the direct evaporative cooler and are sequentially arranged from top to bottom in the vertical direction.