CN206977886U - A kind of rack overhead type heat-exchanger rig - Google Patents

Abstract

The utility model discloses a top-mounted heat exchange device for a cabinet, which comprises a top lower partition, a top top partition, a top finned liquid-cooled heat exchanger and several top fans arranged on the top of the cabinet, wherein the top bottom Ventilation holes are provided on the partition and the top upper partition; the top finned liquid-cooled heat exchanger and the top fan are arranged between the top lower partition and the top upper partition, wherein the top finned liquid cooling The heat exchanger is arranged on the top lower partition, and the top fan is arranged on the upper part of the top finned liquid-cooled heat exchanger. The utility model can organically integrate the top of the cabinet with the heat exchanging elements, expanding the functions of the cabinet; at the same time, the finned liquid cooling heat exchanger, fan and air duct are used to form a liquid cooling heat exchanging unit, which can effectively increase the heat dissipation of the cabinet.

Description

A cabinet top-mounted heat exchange device

technical field

The utility model relates to a cooling device for a cabinet, in particular to a top-mounted heat exchange device for a cabinet.

Background technique

With the development of electronic equipment, the power density and quantity of the cabinet server in the data center are gradually increasing, and its heat dissipation is also increasing at an alarming rate. Therefore, the cooling system of the cabinet with electronic equipment as the main equipment is particularly important; in the prior art Among them, cooling fans are installed on the outside of the cabinet for heat dissipation, and air conditioners are installed in the computer room to reduce the temperature to achieve the purpose of heat dissipation, but there are still many problems:

1. Install a cooling fan on the outside of the cabinet for heat dissipation. It is difficult to completely take away the heat in the cabinet, which will cause the electronic equipment in the cabinet to be prone to failure and reduce the service life;

2. Installing an air conditioner in the computer room can only reduce the indoor temperature, but cannot take heat away from the interior of the electronic equipment, the heat dissipation effect is poor, and the energy consumption of the air conditioner is very high.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a cabinet top-mounted heat exchange device, which combines high-efficiency heat exchange heat pipes, finned liquid-cooled heat exchangers and cooling fans together, so that the heat inside the cabinet The air is fully dissipated, reducing the cooling load of the cabinet air conditioner, saving energy consumption, and cooling the cabinet quickly.

The purpose of this utility model is achieved through the following technical solutions:

A cabinet top-mounted heat exchange device, including a top lower partition, a top top partition, a top finned liquid-cooled heat exchanger and several top fans arranged on the top of the cabinet, wherein the top lower partition and the top There are ventilation holes on the upper partition; the top finned liquid-cooled heat exchanger and the top fan are arranged between the top lower partition and the top upper partition, wherein the top finned liquid-cooled heat exchanger is set On the top lower partition, the top fan is arranged on the top of the top finned liquid-cooled heat exchanger.

The working principle of the above-mentioned cabinet top-mounted heat exchange device is:

After the electronic equipment in the cabinet works for a long time, there is a lot of heat in the cabinet; through the top fan installed on the top of the cabinet, the hot air inside the cabinet is introduced into the top finned liquid cooling heat exchanger through the bottom hole plate of the cabinet, and the top finned The liquid-cooled heat exchanger takes away the heat of the hot air and reduces the temperature of the air passing through, thereby reducing the heat discharged into the computer room.

A preferred solution of the present utility model, wherein, the top-finned liquid-cooled heat exchanger is composed of heat exchange coils, fins, pipes, flow regulators, water pumps and cooling towers. In the top-finned liquid-cooled heat exchanger with the above structure, the fins are used to absorb the heat in the air, and transfer it to the cooling liquid in the heat exchange coil, and the cooling liquid transfers the heat to the cooling tower for heat exchange, realizing the cooling of the cabinet. heat dissipation.

In a preferred solution of the present utility model, there are multiple top fans, which are divided into rows and arranged between the upper part of the top finned liquid-cooled heat exchanger and the upper partition on the top. Through multiple top fans, the efficiency of heat dissipation is improved.

A preferred solution of the utility model, which also includes a drawer partition type heat pipe cooling device arranged in the middle of the cabinet, the drawer partition type heat pipe cooling device includes a cabinet partition assembly, a finned liquid-cooled heat exchanger, in the form of an L type heat conduction heat pipe and back side fan; wherein, the cabinet partition assembly includes an upper horizontal partition, a lower horizontal partition, an inner vertical partition and an outer vertical partition, and the upper horizontal partition, the lower horizontal partition, Both the inner vertical partition and the outer vertical partition are provided with ventilation holes; the upper horizontal partition and the lower horizontal partition are arranged in the middle of the inside of the cabinet, and there is a gap between the upper horizontal partition and the lower horizontal partition for installing heat conduction The installation space of the heat pipe and the finned liquid-cooled heat exchanger; the inner vertical partition and the outer vertical partition are arranged on the back side of the cabinet; the horizontal section of the heat-conducting heat pipe is arranged in the installation space and connected with the upper horizontal partition The bottom of the heat conduction heat pipe is attached to the bottom of the horizontal section and the top of the lower horizontal partition is provided with a horizontally placed finned liquid cooling heat exchanger; the vertical section of the heat conduction heat pipe is connected to the inner vertical partition Plate bonding; the outside of the vertical section of the heat conduction heat pipe is provided with a vertically placed finned liquid-cooled heat exchanger in close contact with it; the outer side of the vertically placed finned liquid-cooled heat exchanger is vertically separated from the outside The space between the plates forms a vertical ventilation channel; the back side fan is arranged in the ventilation channel.

The working principle of the above-mentioned drawer partition type heat pipe cooling device is:

The horizontal section of the heat conduction heat pipe installed in the middle of the cabinet absorbs heat into the heat pipe through the upper horizontal partition; since the horizontal section of the heat conduction heat pipe is installed between the bottom of the horizontal section and the top of the lower horizontal partition Therefore, in addition to absorbing the heat in the air in the cabinet and the heat transferred from the lower horizontal partition, the horizontally placed finned liquid-cooled heat exchanger also transfers the heat from the horizontal section of the heat conduction heat pipe to the finned liquid-cooled heat exchanger. On the fins of the heat exchanger; since the heat in the horizontal section of the heat conduction heat pipe cannot be completely conducted to the horizontally placed finned liquid-cooled heat exchanger, the remaining heat in the horizontal section of the heat conduction heat pipe will be conducted to the vertical In the section, the vertically placed finned liquid-cooled heat exchanger in contact with the vertical section of the heat conduction heat pipe will absorb part of the heat in the vertical section and the heat in the cabinet; at this time, the cooling medium is delivered to the In the liquid-cooled tube of the finned liquid-cooled heat exchanger, the cooling medium passes through the liquid-cooled tube of the vertically placed finned liquid-cooled heat exchanger and then passes through the liquid-cooled tube of the horizontally placed finned liquid-cooled heat exchanger , and finally flows out to the external cooling liquid delivery system, so that the heat conducted to the fins in the cabinet is taken out of the cabinet; during the cooling medium delivery process, the back side fan set in the side ventilation channel of the cabinet works to transfer the heat of the heat conduction heat pipe The heat of the vertical section and the vertically placed finned liquid-cooled heat exchanger is air-cooled to further accelerate heat dissipation.

A preferred solution of the present utility model, wherein, the upper horizontal partition and the inner vertical partition are connected to each other at the end, the lower horizontal partition and the outer vertical partition are connected to each other at the end, and the upper horizontal partition and the lower horizontal partition are connected together through the first end connection plate, and the inner vertical partition and the outer vertical partition are connected together through the second end connection plate; the vertically placed finned liquid cooling The outer side of the heat exchanger is also provided with a middle vertical partition, and the back fan is arranged between the middle vertical partition and the outer vertical partition. In this way, the upper horizontal baffle, the first end connecting plate, the lower horizontal baffle, the outer vertical baffle, the second end connecting plate and the inner vertical baffle are connected successively to form the frame of the whole heat sink, thus making it easier for the whole heat radiating device It is installed in the cabinet in an embedded manner; in addition, by setting the middle vertical partition, it facilitates the installation and fixation of the rear fan and the vertically placed finned liquid cooling heat exchanger.

In a preferred solution of the present invention, in the drawer partition type heat pipe cooling device, the cabinet is provided with a support guide rail made of angle steel, and the lower horizontal partition is supported on the support guide rail. Through this structure, the frame of the entire heat dissipation device can be supported on the support guide rail, and the entire heat dissipation device is loaded into the cabinet like a drawer, and the installation is quite convenient.

In a preferred solution of the present utility model, in the drawer partition type heat pipe cooling device, the back side fans are divided into two rows in the vertical direction, and each row includes a plurality of back side fans arranged in the horizontal direction; A top fan is provided on the upper ends of the partition and the outer vertical partition. By arranging multiple backside fans and top fans, it is beneficial to improve heat dissipation efficiency.

In a preferred solution of the present invention, in the drawer partition type heat pipe cooling device, the air inlet of the ventilation channel communicates with the indoor and outdoor at the same time, and indoor or outdoor air is used for cooling according to different seasons. Specifically, the cooling air passing through the cabinets uses indoor air in summer, and in transitional seasons, the air with a lower outdoor temperature is used to filter and dehumidify before entering the cabinets, and taking the heat dissipation of the cabinets out of the equipment room.

In a preferred solution of the present invention, in the drawer partition type heat pipe cooling device, the air outlet of the ventilation channel is connected to the outside of the machine room through an exhaust pipe. In this way, when the exhaust air temperature is high, the exhaust air is directly exhausted to the outside of the machine room through the independent exhaust air duct, so as to avoid the air temperature in the machine room from being too high.

In a preferred solution of the present utility model, in the drawer partition type heat pipe cooling device, the heat conduction heat pipe is a flat heat pipe, and the horizontal section and the vertical section of the flat heat pipe are welded to the upper horizontal partition and the inner vertical partition respectively. connected together. The flat heat pipe has a wide surface in contact with the horizontal partition and the inner vertical partition, thereby improving the heat dissipation efficiency and improving the overall thermal energy utilization efficiency of the system. At the same time, the structure of the flat heat pipe is also suitable for the narrow and flat space in the cabinet.

Compared with the prior art, the utility model has the following beneficial effects:

1. The top of the cabinet is organically integrated with the heat exchange element, which expands the functions of the cabinet.

2. The finned liquid-cooled heat exchanger, fan and air duct are used to form a liquid-cooled heat exchange unit, which can effectively increase the heat dissipation of the cabinet.

3. The liquid is used to dissipate the heat inside the cabinet, which improves the cooling efficiency.

4. The device can be combined with the cabinet liquid cooling system or the air supply and exhaust system to expand its testing application range.

Description of drawings

Fig. 1 is a front sectional view of a cabinet top-mounted heat exchange device of the present invention.

Fig. 2 is a top view of a cabinet top-mounted heat exchange device of the present invention.

Fig. 3 is a front sectional view of the drawer partition type heat pipe cooling device of the present invention.

Fig. 4 is a right view of the drawer clapboard type heat pipe cooling device of the present invention.

Fig. 5 is a top view of the finned liquid-cooled heat exchanger in Fig. 3 .

Fig. 6 is a front sectional view of a cabinet top-mounted heat exchange device and a drawer partition-type heat pipe cooling device of the utility model installed in the cabinet at the same time.

Detailed ways

The utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Referring to Figures 1-2, a cabinet top-mounted heat exchange device includes a top lower partition 2, a top top partition 1, a top finned liquid-cooled heat exchanger 4 and several top fans arranged on the top of the cabinet 14. 3, wherein, the top lower partition 2 and the top upper partition 1 are provided with ventilation holes 8; the top finned liquid cooling heat exchanger 4 and the top fan 3 are arranged on the top lower partition 2 and the top Between the upper partitions 1 , the top finned liquid-cooled heat exchanger 4 is arranged on the top lower partition 2 , and the top fan 3 is arranged on the top of the top finned liquid-cooled heat exchanger 4 .

Referring to Figures 1-2, the top-finned liquid-cooled heat exchanger 4 is composed of heat exchange coils, fins, pipes, flow regulators, water pumps and cooling towers. In the top-finned liquid-cooled heat exchanger 4 with the above structure, the fins are used to absorb the heat in the air, and transfer it to the cooling liquid in the heat exchange coil, and the cooling liquid transfers the heat to the cooling tower for heat exchange, realizing the Heat dissipation of the cabinet 14.

Referring to FIGS. 1-2 , there are multiple top fans 3 , which are arranged in rows between the upper part of the top finned liquid-cooled heat exchanger 4 and the top upper partition 1 . Through multiple top fans 3, the efficiency of heat dissipation is improved.

Referring to Fig. 3-Fig. 6, it also includes a drawer partition type heat pipe heat dissipation device arranged in the middle of the cabinet 14. The drawer partition type heat pipe heat dissipation device includes a cabinet partition assembly, a finned liquid cooling heat exchanger 9 (model: FP -51 type, specification: 580×200×65), L-shaped heat conduction heat pipe 10 (model: AMEC-MHP-3060A-150A heat dissipation pipe, specification: 3.0mm thick×40mm wide, vertical heat conduction power: 185W) and power 64W, with a rated air volume of 680m ³ /h axial flow cooling rear fan 13; wherein, the cabinet partition assembly includes an upper horizontal partition 15, a lower horizontal partition 16, an inner vertical partition 17 and an outer vertical partition plate 18, the upper horizontal partition 15, the lower horizontal partition 16, the inner vertical partition 17 and the outer vertical partition 18 are all provided with ventilation holes 8; the upper horizontal partition 15 and the lower horizontal partition 16 are set In the middle of the inside of the cabinet 14, and between the upper horizontal partition 15 and the lower horizontal partition 16, there is an installation space for installing the heat conduction heat pipe 10 and the finned liquid-cooled heat exchanger 9; the inner vertical partition 17 and the outer The vertical partition 18 is arranged on the back side of the cabinet 14; the horizontal section 10-1 of the heat-conducting heat pipe 10 is arranged in the installation space and fits under the upper horizontal partition 15; the horizontal section 10-1 of the heat-conducting heat pipe 10 A finned liquid cooling heat exchanger 9-1 placed horizontally is arranged between the bottom of 1 and the top of the lower horizontal partition 16; the vertical section 10-2 of the heat conduction heat pipe 10 is attached to the inner vertical partition 17 close; the outside of the vertical section 10-2 of the heat conduction heat pipe 10 is provided with a vertically placed finned liquid-cooled heat exchanger 9-2 in close contact with it; the vertically placed finned liquid-cooled heat exchanger 9 The space between the outer side of -2 and the outer vertical partition 18 forms a vertical ventilation channel; the back fan 13 is arranged in the ventilation channel.

Referring to Fig. 3-Fig. 6, the working principle of the above-mentioned drawer partition type heat pipe cooling device is:

The horizontal section 10-1 of the heat conduction heat pipe 10 installed in the middle of the cabinet 14 absorbs heat into the heat pipe through the upper horizontal partition 15; There is a horizontally placed finned liquid-cooled heat exchanger 9-1, so the horizontally placed finned liquid-cooled heat exchanger 9-1 absorbs the heat in the air in the cabinet 14 and the heat transferred from the lower horizontal partition 16. In addition to the heat, the heat of the horizontal section 10-1 of the heat conduction heat pipe 10 is also transferred to the fins of the finned liquid-cooled heat exchanger 9; since the heat in the horizontal section 10-1 of the heat conduction heat pipe 10 cannot all be conducted to the horizontal In the finned liquid-cooled heat exchanger 9-1 placed, therefore, the remaining heat in the horizontal section 10-1 of the heat conduction heat pipe 10 will be conducted to the vertical section 10-2, and the vertical section 10-1 of the heat conduction heat pipe 10 The vertically placed finned liquid-cooled heat exchanger 9-2 in contact with the 2 phases will absorb part of the heat in the vertical section 10-2 and the heat in the cabinet 14; In the liquid-cooled tube 9-3 of the plate-type liquid-cooled heat exchanger 9, the cooling medium passes through the liquid-cooled tube 9-3 of the vertically placed finned liquid-cooled heat exchanger 9-2 and then passes through the horizontally placed finned tube 9-3. The liquid-cooled pipe 9-3 of the liquid-cooled heat exchanger 9-1 finally flows out to the external cooling liquid delivery system, thereby taking the heat conducted to the fins in the cabinet 14 out of the cabinet 14; during the cooling medium delivery process, set The back fan 13 in the side ventilation channel of the cabinet 14 works to air-cool the heat of the vertical section 10-2 of the heat conduction heat pipe 10 and the vertically placed finned liquid-cooled heat exchanger 9-2 to further accelerate heat dissipation.

3-6, the upper horizontal partition 15 and the inner vertical partition 17 are connected to each other at the end, the lower horizontal partition 16 and the outer vertical partition 18 are connected to each other at the end, and the upper horizontal partition The plate 15 and the lower horizontal dividing plate 16 are connected together by the first end connecting plate 5, and the inner vertical dividing plate 17 and the outer vertical dividing plate 18 are connected together by the second end connecting plate 6; The placed finned liquid-cooled heat exchanger 9 - 2 is further provided with a middle vertical partition 7 , and the back fan 13 is arranged between the middle vertical partition 7 and the outer vertical partition 18 . In this way, the upper horizontal dividing plate 15, the first end connecting plate 5, the lower horizontal dividing plate 16, the outer vertical dividing plate 18, the second end connecting plate 6 and the inner vertical dividing plate 17 are connected successively to form the frame of the whole heat dissipation device, This makes it easier for the entire cooling device to be installed in the cabinet 14 in an embedded manner; in addition, by setting the middle vertical partition 7, it facilitates the installation of the rear fan 13 and the vertically placed finned liquid-cooled heat exchanger 9-2 fixed.

Referring to FIGS. 3-6 , in the drawer partition type heat pipe cooling device, the cabinet 14 is provided with a support rail 12 made of angle steel, and the lower horizontal partition 16 is supported on the support rail 12 . Through this structure, the frame of the entire cooling device can be supported on the support guide rail 12, and the entire cooling device is loaded into the cabinet 14 like a drawer, and the installation is quite convenient.

Referring to Fig. 3-Fig. 6, in the drawer partition type heat pipe cooling device, the back fans 13 are divided into two rows in the vertical direction, and each row includes a plurality of back fans 13 arranged in the horizontal direction; The top fan 11 is provided on the upper ends of the vertical partition 17 and the outer vertical partition 18 . By arranging multiple backside fans 13 and top fans 11, it is beneficial to improve heat dissipation efficiency.

Referring to Fig. 3-Fig. 6, in the drawer partition type heat pipe cooling device, the air inlet of the ventilation channel communicates with the indoor and outdoor at the same time, and indoor or outdoor air is used for cooling according to different seasons. Specifically, the cooling air passing through the cabinet 14 is indoor air in summer, and the air with a lower outdoor temperature is filtered and dehumidified before entering the cabinet 14 in transitional seasons, and the cooling air of the cabinet 14 is taken out of the machine room.

Referring to Fig. 3-Fig. 6, in the drawer partition type heat pipe cooling device, the air outlet of the ventilation channel is connected to the outside of the machine room through an exhaust pipe. In this way, when the exhaust air temperature is high, the exhaust air is directly exhausted to the outside of the equipment room through an independent exhaust air duct, so as to avoid excessively high air temperature in the equipment room.

Referring to Fig. 3-Fig. 6, in the drawer clapboard type heat pipe cooling device, the heat conduction heat pipe 10 is a flat heat pipe, and the horizontal section 10-1 and the vertical section 10-2 of the flat heat pipe are welded to the upper horizontal insulation respectively. The panels 15 and the inner vertical partitions 17 are connected together. The flat heat pipe has a wide surface in contact with the horizontal partition and the inner vertical partition 17, thereby improving the heat dissipation efficiency and the overall heat utilization efficiency of the system, and the structure of the flat heat pipe is also suitable for the narrow and flat space in the cabinet 14.

The working principle of a cabinet 14 top-mounted heat exchange device in this embodiment is:

After the electronic equipment in the cabinet 14 works for a long time, there is a lot of heat in the cabinet 14; through the top fan 3 arranged on the top of the cabinet 14, the hot air inside the cabinet 14 is introduced into the top finned liquid cooling heat exchange through the orifice plate at the bottom of the cabinet 14 4, the top-finned liquid-cooled heat exchanger 4 takes away the heat of the hot air and reduces the temperature of the passing air, thereby reducing the heat discharged into the machine room.

The above is a preferred implementation of the utility model, but the implementation of the utility model is not limited by the above content, and any other changes, modifications, substitutions and combinations made without departing from the spirit and principle of the utility model , simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present utility model.

Claims (10)

1. a kind of rack overhead type heat-exchanger rig, it is characterised in that including being arranged at the top lower clapboard of enclosure top, on top Dividing plate, the finned liquid cold heat exchanger in top and several top blower fans, wherein, on the top lower clapboard and top upper spacer It is equipped with air vent；The finned liquid cold heat exchanger in the top and top blower fan be arranged at top lower clapboard and top upper spacer it Between, wherein, the finned liquid cold heat exchanger in top is arranged on the lower clapboard of top, and the top blower fan is arranged at the finned liquid in top The top of cold heat exchanger.

2. rack overhead type heat-exchanger rig according to claim 1, it is characterised in that the cold heat exchange of the finned liquid in top Device is made up of heat exchange coil, fin, pipeline, flow regulator, water pump and cooling tower.

3. rack overhead type heat-exchanger rig according to claim 1, it is characterised in that the top blower fan is multiple, and It is divided into row to be arranged between top and the top upper spacer of the finned liquid cold heat exchanger in top.

4. rack overhead type heat-exchanger rig according to claim 1, it is characterised in that also include being arranged in the middle part of rack Dust panel formula heat-pipe radiating apparatus, the dust panel formula heat-pipe radiating apparatus includes rack baffle assembly, finned liquid is cold changes Hot device, L-shaped heat-conductive thermo tube and dorsal part blower fan；Wherein, the rack baffle assembly include upper horizontal baffle, it is lower it is horizontal every Plate, interior vertical partition plate and outer vertical partition plate, the upper horizontal baffle, lower horizontal baffle, interior vertical partition plate and outer vertical partition plate On be equipped with air vent；The upper horizontal baffle and lower horizontal baffle are arranged among interior of equipment cabinet, and upper horizontal baffle is with The installing space for being used for installing heat-conductive thermo tube and finned liquid cold heat exchanger is provided between horizontal baffle；The interior vertical partition plate and Outer vertical partition plate is arranged on the dorsal part of rack；The horizontal segment of the heat-conductive thermo tube be arranged in installing space and with upper horizontal baffle Below be bonded；Below the horizontal segment of the heat-conductive thermo tube with above lower horizontal baffle between be provided with horizontal positioned fin Formula liquid cold heat exchanger；The vertical section of the heat-conductive thermo tube is bonded with the interior vertical partition plate；The vertical section of the heat-conductive thermo tube Outside is provided with the finned liquid cold heat exchanger being disposed vertically in close contact therewith；The cold heat exchange of finned liquid being disposed vertically Space between the outside of device and outer vertical partition plate forms vertical vent passages；The dorsal part blower fan is arranged on vent passages It is interior.

5. rack overhead type heat-exchanger rig according to claim 4, it is characterised in that the upper horizontal baffle and interior vertical Dividing plate is connected with each other in end, and the lower horizontal baffle and outer vertical partition plate are connected with each other in end, the upper horizontal baffle and Linked together between lower horizontal baffle by first end connecting plate, the interior vertical partition plate and outer vertical partition plate pass through second End connecting plate links together；Intermediate vertical dividing plate is additionally provided with the outside of the finned liquid cold heat exchanger being disposed vertically, The dorsal part blower fan is arranged between intermediate vertical dividing plate and outer vertical partition plate.

6. rack overhead type heat-exchanger rig according to claim 4, it is characterised in that filled in dust panel formula heat pipe heat radiation Supporting guide, the lower horizontal baffle made of angle steel is provided with putting, in the rack to be supported on supporting guide.

7. rack overhead type heat-exchanger rig according to claim 4, it is characterised in that filled in dust panel formula heat pipe heat radiation In putting, dorsal part blower fan in the vertical direction is divided into two rows, and often row includes multiple dorsal part blower fans arranged in the horizontal direction；In addition, Top blower fan is provided with the upper end of interior vertical partition plate and outer vertical partition plate.

8. rack overhead type heat-exchanger rig according to claim 4, it is characterised in that filled in dust panel formula heat pipe heat radiation In putting, the air inlet of the vent passages connects with indoor and outdoors simultaneously.

9. rack overhead type heat-exchanger rig according to claim 4, it is characterised in that filled in dust panel formula heat pipe heat radiation In putting, the exhaust outlet of the vent passages is connected to outside computer room by exhaust duct.

10. rack overhead type heat-exchanger rig according to claim 4, it is characterised in that in dust panel formula heat pipe heat radiation In device, the heat-conductive thermo tube is flat hot pipe, the horizontal segment and vertical section of the flat hot pipe respectively by way of welding with Upper horizontal baffle and interior vertical partition plate link together.