CN212259618U - Cabinet cooling system - Google Patents

Abstract

The utility model discloses a heat dissipation system of a machine cabinet, which comprises an air heat exchanger, a gas collecting pipe and an exhaust fan; the air heat exchanger is provided with a hollow heat exchanger body, an air inlet and an air outlet which are arranged at two ends of the heat exchanger body, the heat exchanger body is used for being sleeved on the periphery of the cold pipe, and an air duct is formed between the inner wall of the heat exchanger body and the heat pipe; the air inlet of the air collecting pipe is communicated with the air outlet; the exhaust fan is arranged on the gas collecting pipe and used for exhausting air from the air channel and blowing the sucked cold air to the heat source of the cabinet through the air outlet of the gas collecting pipe. Through this technique, realize realizing in air heat exchanger with the cold pipe realization heat exchange in order to reduce air temperature with the outside air suction through the air exhauster to blow microthermal air to rack heat source department, realize the heat dissipation to the chip. The technology realizes the recycling of cold sources, saves energy and reduces the heat dissipation cost of the cabinet.

Description

Cabinet cooling system

Technical Field

The utility model belongs to the technical field of the rack heat dissipation technique and specifically relates to a rack cooling system.

Background

Since the chip generates a very large amount of heat as a core device of various control apparatuses, the chip needs to be subjected to heat dissipation treatment during actual use. For simple devices, heat dissipation is often achieved by providing heat fins and fans at the chip.

For large devices, such as cabinets, servers, etc., due to the large number of chips involved, cooling using conventional cooling fins and fans does not achieve efficient heat dissipation. Therefore, in order to dissipate heat from the chip of such a device, cold air is usually used to cool the environment to dissipate the heat. For example, cool air is blown into the cabinet chamber to realize temperature reduction and heat dissipation. The power consumed by adopting the method is very much, so that the heat dissipation cost is very high.

On the other hand, with the development of technology, many devices can generate cold sources during use, and the cold sources are often directly discharged into the ambient atmosphere, so that huge waste of the cold sources is caused.

Therefore, in order to solve the above problems, a new technology is needed to recycle the cold source of the refrigerator to cool the chip, so as to achieve the effect of saving energy.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a rack cooling system, aim at realize the heat dissipation that is used for the rack with the recovery of cold source to play the energy saving, reduce cost's effect.

In order to solve the technical problem, the utility model provides a basic technical scheme does:

a cabinet cooling system, comprising:

each air heat exchanger is provided with a hollow heat exchanger body, an air inlet and an air outlet which are arranged at two ends of the heat exchanger body, the heat exchanger body is used for being sleeved on the periphery of the cold pipe, and an air duct is formed between the inner wall of the heat exchanger body and the heat pipe;

the air inlet of the air collecting pipe is communicated with the air outlet;

and the exhaust fan is arranged on the gas collecting pipe and used for exhausting air from the air channel and blowing the sucked cold air to the heat source of the cabinet through the air outlet of the gas collecting pipe.

The gas distributor comprises a gas collecting port and a plurality of gas distributing ports with the same number as the plurality of gas distributing pipes, and one gas distributing port is correspondingly communicated with one gas distributing pipe;

the first-stage gas distribution device comprises a group of gas distribution components, and a gas collection port of a gas distributor of the first-stage gas distribution device is communicated with a gas outlet of the gas collection pipe;

the lower stage gas distribution device comprises gas distribution components, wherein the number of the gas distribution components of the lower stage gas distribution device is the same as that of all gas distribution pipes of the upper stage gas distribution device, and the gas collection ports of the gas distributors of each group of gas distribution components of the lower stage gas distribution device are communicated with the gas distribution pipes of the gas distribution components of the upper stage gas distribution device;

wherein N is a positive integer not less than 1.

Further, the gas distributor is configured to be provided with a main pipe and a plurality of auxiliary pipes communicated with the main pipe; the upper port of the main pipe is the air collecting port, and the lower port of the main pipe is communicated with a drying structure; the output end of each secondary pipe is the air distributing port.

Furthermore, the plurality of auxiliary pipes are uniformly distributed on two sides of the main pipe and are approximately distributed in a butterfly shape with the main pipe.

Further, each secondary pipe is arranged perpendicular to the main pipe or obliquely downward from the main pipe.

Further, the gas collecting pipe and the gas distributing pipe are flexible pipes.

Further, the drying structure is configured to be provided with a box body fixed with the main pipe, the box body is provided with an inner cavity, and the inner cavity is communicated with the main pipe; wherein, the inner cavity is provided with a detachably connected loading box, and a drying agent is placed in the loading box.

Further, the loading box is provided with a panel which is in sealing detachable connection with the opening of the inner cavity.

Further, the heat exchanger body comprises a first cover body and a second cover body, a first baffle and a second baffle are respectively arranged at two ends of the first cover body, a third baffle and a fourth baffle are respectively arranged at two ends of the second cover body, the first cover body and the second cover body can sleeve a cold pipe inside when the covers are closed, the first baffle and the third baffle are in butt joint sealing fit, and the second baffle and the fourth baffle are in butt joint sealing fit; the air inlet is formed in the first baffle and/or the third baffle; the air outlet is arranged on the first cover body or the second cover body.

Furthermore, the air inlet comprises a plurality of air holes which are uniformly distributed at the first baffle and/or the third baffle.

The utility model has the advantages that:

the technical scheme of the utility model is a cabinet heat dissipation system, which comprises an air heat exchanger, a gas collecting pipe and an exhaust fan; the air heat exchanger is provided with a hollow heat exchanger body, an air inlet and an air outlet which are arranged at two ends of the heat exchanger body, the heat exchanger body is used for being sleeved on the periphery of the cold pipe, and an air duct is formed between the inner wall of the heat exchanger body and the heat pipe; the air inlet of the air collecting pipe is communicated with the air outlet; the exhaust fan is arranged on the gas collecting pipe and used for exhausting air from the air channel and blowing the sucked cold air to the heat source of the cabinet through the air outlet of the gas collecting pipe. Through this technique, realize realizing in air heat exchanger with the cold pipe realization heat exchange in order to reduce air temperature with the outside air suction through the air exhauster to blow microthermal air to rack heat source department, realize the heat dissipation to the chip. The technology realizes the recycling of cold sources, saves energy and reduces the heat dissipation cost of the cabinet.

Drawings

Fig. 1 is a schematic structural view of a cabinet cooling system of the present invention;

FIG. 2 is a schematic external view of an air heat exchanger;

FIG. 3 is an internal cross-sectional view of an air heat exchanger;

FIG. 4 is a schematic structural view of a gas distributor;

FIG. 5 is a schematic view of the outer shape of the gas distributor;

fig. 6 is a schematic view of the internal structure of the gas distributor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

Referring to fig. 1 to 3, the utility model provides a rack cooling system, including at least one air heat exchanger 1, discharge 2 and air exhauster 3. Each air heat exchanger 1 is provided with a hollow heat exchanger body 11, and an air inlet 12 and an air outlet 13 which are arranged at two ends of the heat exchanger body 11, wherein the heat exchanger body 11 is used for being sleeved on the periphery of a cold pipe 10, and an air duct 14 is formed between the inner wall of the heat exchanger body 11 and a heat pipe; the air inlet 21 of the gas collecting pipe 2 is communicated with the air outlet 13; the exhaust fan 3 is arranged on the gas collecting pipe 2 and used for exhausting air to the air duct 14 and blowing the sucked cold air to the cabinet heat source through the air outlet 22 of the gas collecting pipe 2. During specific work, the heat exchanger body 11 wraps the external cold pipe, under the suction action of the exhaust fan 3, external air enters the air duct 14 from the air inlet 12, heat exchange is realized between air entering the air duct 14 and cold liquid in the cold pipe, the cold and hot temperatures are increased, the air temperature is reduced, cooled air enters the air collecting pipe 2 from the air outlet 13, and finally the cooled air is blown to the heat source position of the cabinet from the air outlet 22 of the air collecting pipe 2, so that heat dissipation of the cabinet is realized. The technical scheme through this embodiment has realized the recovery of cold source promptly to realize cooling treatment with the cold source of retrieving to the rack, improved the utilization ratio of the energy like this, reduced the cooling cost of rack. In specific application, the chips in the cabinet are main heating sources, the cost is high, and the chips are easily burnt out, so that in specific application, the air outlet 22 of the air collecting pipe 2 just blows cold air to the chips in the cabinet, and a good cooling effect can be achieved on the chips. When in actual use, a plurality of air heat exchangers 1 can be sleeved outside the cold pipe, so that the increase of cold air volume is facilitated, and the cabinet is cooled subsequently. When adopting a plurality of air heat exchangers 1, the air inlet 21 intercommunication of the equal discharge pipe 2 of air outlet 13 of these a plurality of air heat exchangers 1 realizes assembling of air conditioning, improves the cold wind volume.

In detail, referring to fig. 2 to 3, the heat exchanger body 11 includes a first cover 111 and a second cover 112, two ends of the first cover 111 are respectively provided with a first baffle 113 and a second baffle 114, two ends of the second cover 112 are respectively provided with a third baffle 115 and a fourth baffle 116, when the first cover 111 and the second cover 112 are closed, the cold pipe can be sleeved inside, the first baffle 113 and the third baffle 115 are in butt-joint sealing fit, and the second baffle 114 and the fourth baffle 116 are in butt-joint sealing fit; the air inlet 12 is arranged at the first baffle 113 and/or the third baffle 115; the air outlet 13 is disposed on the first cover 111 or the second cover 112. In this embodiment, the first cover 111 and the second cover 112 are substantially semicircular in shape, and when the two covers are closed, a cylindrical structure is formed. When the first cover 111 and the second cover 112 are closed, the first cover 111, the second cover 112, the first baffle 113, the second baffle 114, the third baffle 115 and the fourth baffle 116 enclose the air duct 14, and air entering from the outside exchanges heat with the cold pipes in the air duct 14, so that the temperature of the air is reduced for subsequent heat dissipation of the cabinet. In this embodiment, the first baffle 113, the second baffle 114, the third baffle 115, and the fourth baffle 116 are semicircular, the outer arc surface is matched with the inner arc surface of the first cover 111 or the second cover 112, and the inner arc surface contacts with the outer side surface of the cooling tube. In some embodiments, the first baffle 113 and the second baffle 114 are respectively located at two ends of the inner side of the first cover 111, and form an integral structure with the first cover 111; the third baffle 115 and the fourth baffle 116 are respectively located at two ends of the inner side of the second cover 112, and form an integral structure with the second cover 112. In practical use, when the first cover 111 is covered, the first baffle 113 and the third baffle 115 are matched to form a circular ring structure, and the second baffle 114 and the fourth baffle 116 are matched to form a circular ring structure; when assembling, the first cover 111 and the second cover 112 can be fixed by screws, or any other suitable manner, such as fastening. In other embodiments, the first cover 111, the second cover 112, the first baffle 113, the second baffle 114, the third baffle 115 and the fourth baffle 116 are all split structures, when assembling, the first baffle 113 and the third baffle 115 are sleeved on the periphery of the cold pipe, the second baffle 114 and the fourth baffle 116 are sleeved on the periphery of the cold pipe, and then the first cover 111 and the second cover 112 are covered on the periphery of the baffles; particularly, when the fixing is carried out, the cover body and the baffle plate can be fixed through screws, and the fixing can also be realized through any other suitable mode. In order to improve the service life and strength of the heat exchanger body 11, when the first cover 111 and the second cover 112 are covered, the first cover 111, the second cover 112, the first baffle 113, the second baffle 114, the third baffle 115, and the fourth baffle 116 are made of stainless steel.

In detail, referring to fig. 2, the air inlet 12 of the embodiment includes a plurality of air holes 121, and the plurality of air holes 121 are uniformly distributed at the first baffle 113 and/or the third baffle 115. Preferably, the plurality of wind holes 121 are simultaneously provided at the first and third baffles 113 and 115 and are equidistantly arranged in a circular manner. Of course, the plurality of air holes 121 may be formed only in the first baffle 113 or only in the third baffle 115. The air outlet 13 is disposed on the first cover 111 or the second cover 112. Specifically, the air outlet 13 is disposed near the second baffle 114 or the fourth baffle 116, and at this time, the second baffle 114 and the fourth baffle 116 cooperate to close the right end (in the paper surface direction as shown in fig. 3) of the air duct 14. Of course, the air outlet 13 may be disposed on the second baffle 114 or the fourth baffle 116.

In addition, in order to increase the air travel in the air duct 14, several structures similar to the first baffle 113 and the third baffle 115 are provided in the air duct 14 to play a role of blocking the air flow, and reduce the flow speed of the air, so that the air is subjected to heat exchange with the cold liquid in the cold pipe for a longer time, and the temperature of the air is reduced. Of course, in addition to this, the air duct 14 may be provided as a helical channel, which is realized using known techniques. The spiral channel increases the air stroke and reduces the temperature.

In order to realize targeted cooling and heat dissipation of a plurality of heat sources in a cabinet or a plurality of cabinets, as shown in fig. 4 to 6, the cabinet heat dissipation system of the present technical solution further includes N stages of air distribution devices, each stage of air distribution device includes at least one set of air distribution assembly 4, each set of air distribution assembly 4 includes an air distributor 41 and a plurality of air distribution pipes 42, the air distributor 41 has an air collection port 411 and a plurality of air distribution ports 412 with the same number as the plurality of air distribution pipes 42, and one air distribution port 412 is correspondingly communicated with one air distribution pipe 42; the first-stage gas separation device comprises a group of gas separation components 4, and a gas collection port 411 of a gas distributor 41 of the first-stage gas separation device is communicated with a gas outlet 22 of the gas collection pipe 2; the number of the gas distribution components 4 included in the next stage of gas distribution device is the same as that of all the gas distribution pipes 42 of the previous stage of gas distribution device, and the gas collection port 411 of the gas distributor 41 of each group of gas distribution components 4 of the next stage of gas distribution device is communicated with the gas distribution pipes 42 of the gas distribution components 4 of the previous stage of gas distribution device, wherein N is a positive integer not less than 1. The multistage gas distribution device of this embodiment can distribute each gas distribution pipe 42 department as required with the air conditioning that air heat exchanger 1 obtained, realizes spraying cold wind by each gas distribution pipe 42 to the rack heat source that corresponds, realizes spilling heat to the rack cooling, owing to have a plurality of gas distribution pipes 42, consequently can cool down simultaneously a plurality of heat sources of same rack and handle or cool down the heat dissipation to a plurality of heat sources of a plurality of racks.

The present embodiment is illustrated by taking a three-stage gas distribution device as an example, as shown in fig. 4, wherein the gas distribution assembly 4 includes a gas distributor 41 and two gas distribution pipes 42. The first stage gas distribution device comprises a component gas assembly 4, the second stage gas distribution device comprises a component gas assembly 4, and the third stage gas distribution device comprises a component gas assembly 4. That is, the number of the gas distributing assemblies 4 of the next stage is the same as that of all the gas distributing pipes 42 of the gas distributing device of the previous stage.

When the air conditioner works, the cold air collected by the air collecting pipe 2 passes through the air distributor 41 of the first air distributing device and then divides the air flow into two paths to be output; then, each output is divided into two paths of outputs by a corresponding gas divider 41 of the gas dividing component 4 in the second-stage gas dividing device, and the four paths of outputs are totally output by the gas dividing device; and then the four paths of output are divided into eight paths of output by the four air dividing assemblies 4 in the third air dividing device, and then the eight paths of output are conveyed to a heat source of a corresponding cabinet for cooling and heat dissipation.

It should be understood that how many stages of gas separation devices are specifically arranged is based on the air volume of the gas collecting pipe 2 and the number of heat sources of the cabinet or the number of cabinets. When the air quantity at the air collecting pipe 2 is larger and the quantity of the heat sources is larger, a multi-stage air distributing device is arranged. When the air volume is smaller and the number of the cabinets is smaller, the air distributing device with less air traffic is arranged.

In a word, can realize cooling when to many cabinets, many heat sources through this embodiment for the heat dissipation guarantees rack cooling system's radiating efficiency.

The technical scheme also provides a novel gas distributor 41. With particular reference to fig. 5 and 6, the gas distributor 41 is configured to have a main pipe 413 and a plurality of secondary pipes 414 communicating with the main pipe 413; wherein, the upper port of the main pipe 413 is the air collecting port 411, and the lower port is communicated with a drying structure 415; the output end of each secondary tube 414 is the gas-dividing opening 412. In this embodiment, because of the air heat exchanger 1, water drops may be generated in the air cooling process, and if the water drops are directly input into the cabinet, the normal operation of the cabinet may be affected, and even the chip and the like may be burned. Therefore, by providing the drying structure 415 at the lower port of the main pipe 413 of the air distributor 41, water droplets entrained in the cold air can be adsorbed, and the water droplets are prevented from entering the cabinet.

It should be understood that the main pipe 413 and the sub-pipe 414 are of a unitary structure and adopt a tubular structure, and the main pipe 413 and the sub-pipe 414 are communicated with each other. The plurality of sub pipes 414 are uniformly distributed on both sides of the main pipe 413 and are distributed in a butterfly shape with the main pipe 413. And the main pipe 413 is a main body, similar to the body trunk of a butterfly, and the plurality of auxiliary pipes 414 are branches at two sides, similar to the wings of the butterfly, so that the main pipe 413 and the auxiliary pipes 414 of the embodiment form a butterfly-shaped distribution. Wherein each of the sub pipes 414 is arranged perpendicular to the main pipe 413 or obliquely downward from the main pipe 413.

In order to collect air and convey cold air to the heat source of the corresponding cabinet, the air collecting pipe 2 and the air distributing pipe 42 of the present embodiment are flexible pipes. For example PVC hose.

As shown in fig. 6, the drying structure 415 is configured to have a box 4151 fixed to the main tube 413, the box 4151 having an inner cavity 4152, the inner cavity 4152 communicating with the main tube 413; wherein the chamber 4152 has a removably attached stowage box 4153, and desiccant is disposed within the stowage box 4153. That is, in the present embodiment, the loading box 4153 and the desiccant placed inside absorb water droplets flowing in the main pipe 413, and prevent the water droplets from flowing out along the sub-pipe 414 and finally flowing to the cabinet. In this case, the loading cassette 4153 is detachably attached, that is, after a certain period of time, the water in the loading cassette 4153 is poured out and the drying agent is replaced by pulling out the loading cassette 4153. Wherein the loading box 4153 has a panel 4154, and the panel 4154 is hermetically detachably connected with the open mouth of the inner cavity 4152. Specifically, the panel 4154 can be engaged with the open end of the inner cavity 4152 to achieve a sealing engagement, wherein a sealing ring 4155 is disposed on the periphery of the panel 4154, and when the panel 4154 is engaged with the loading box 4153, the sealing ring 4155 is in close contact with the loading box 4153 to achieve a sealing.

In a word, the technical scheme of the utility model realize the recycle to the cold source to the realization improves the radiating efficiency to the cooling of rack, has reduced rack heat dissipation cost, the energy saving.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (10)

1. A cabinet cooling system, comprising:

each air heat exchanger (1) is provided with a hollow heat exchanger body (11), an air inlet (12) and an air outlet (13) which are arranged at two ends of the heat exchanger body (11), the heat exchanger body (11) is used for being sleeved on the periphery of a cold pipe, and an air duct (14) is formed between the inner wall of the heat exchanger body (11) and a heat pipe;

the air inlet (21) of the air collecting pipe (2) is communicated with the air outlet (13);

and the exhaust fan (3) is arranged on the gas collecting pipe (2) and is used for exhausting air to the air duct (14) and blowing the sucked cold air to the heat source of the cabinet through the air outlet (22) of the gas collecting pipe (2).

2. The cabinet cooling system of claim 1, wherein:

the device comprises a gas distributor and a gas distributor, and is characterized by further comprising N-level gas distributors, each level of gas distributor comprises at least one group of gas distributing assembly (4), each group of gas distributing assembly (4) comprises one gas distributor (41) and a plurality of gas distributing pipes (42), each gas distributor (41) is provided with a gas collecting opening (411) and a plurality of gas distributing openings (412) which are the same as the plurality of gas distributing pipes (42), and each gas distributing opening (412) is correspondingly communicated with one gas distributing pipe (42);

the first-stage gas distribution device comprises a group of gas distribution components (4), and a gas collection port (411) of a gas distributor (41) of the first-stage gas distribution device is communicated with a gas outlet (22) of the gas collection pipe (2);

the number of the gas distribution components (4) of the next stage of gas distribution device is the same as that of all the gas distribution pipes (42) of the previous stage of gas distribution device, and the gas collection port (411) of the gas distributor (41) of each group of gas distribution components (4) of the next stage of gas distribution device is communicated with the gas distribution pipes (42) of the gas distribution components (4) of the previous stage of gas distribution device;

wherein N is a positive integer not less than 1.

3. The cabinet cooling system of claim 2, wherein:

the gas distributor (41) is configured to be provided with a main pipe (413) and a plurality of auxiliary pipes (414) communicated with the main pipe (413); wherein, the upper port of the main pipe (413) is the air collecting port (411), and the lower port is communicated with a drying structure (415); the output end of each secondary pipe (414) is the gas separation opening (412).

4. The cabinet cooling system of claim 3, wherein:

the plurality of auxiliary pipes (414) are uniformly distributed on two sides of the main pipe (413) and are approximately distributed with the main pipe (413) in a butterfly shape.

5. The cabinet cooling system of claim 3, wherein:

each secondary pipe (414) is arranged perpendicularly to the main pipe (413) or obliquely downward to the main pipe (413).

6. The cabinet cooling system of claim 3, wherein:

the gas collecting pipe (2) and the gas distributing pipe (42) are flexible pipes.

7. The cabinet cooling system of claim 3, wherein:

the drying structure (415) is configured to have a box body (4151) fixed with the main pipe (413), the box body (4151) is provided with an inner cavity (4152), and the inner cavity (4152) is communicated with the main pipe (413); wherein the inner cavity (4152) is provided with a detachably connected loading box (4153), and the loading box (4153) is used for placing the drying agent.

8. The cabinet cooling system of claim 7, wherein:

the stowage box (4153) has a face plate (4154), the face plate (4154) being sealingly detachably connected to the open mouth of the interior cavity (4152).

9. The cabinet cooling system of any one of claims 1 to 7, wherein:

the heat exchanger body (11) comprises a first cover body (111) and a second cover body (112), a first baffle (113) and a second baffle (114) are respectively arranged at two ends of the first cover body (111), a third baffle (115) and a fourth baffle (116) are respectively arranged at two ends of the second cover body (112), the first cover body (111) and the second cover body (112) can sleeve a cold pipe inside when covering, the first baffle (113) and the third baffle (115) are in butt-joint sealing fit, and the second baffle (114) and the fourth baffle (116) are in butt-joint sealing fit; the air inlet (12) is arranged at the first baffle (113) and/or the third baffle (115); the air outlet (13) is arranged on the first cover body (111) or the second cover body (112).

10. The cabinet cooling system of claim 9, wherein:

the air inlet (12) comprises a plurality of air holes (121), and the plurality of air holes (121) are uniformly distributed at the first baffle plate (113) and/or the third baffle plate (115).

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