Unpowered air cooler

Abstract

The utility model discloses an unpowered air cooler, which relates to the technical field of air coolers, and comprises a plurality of finned tubes, a water inlet pipe and a water outlet pipe, a communicating vessel is arranged between the water inlet pipe and the water outlet pipe, the plurality of finned tubes are arranged in multiple layers, and the water inlet pipe is communicated with the communicating vessel. A fixing plate and a connecting plate are arranged on the two sides of the finned tube, one end of the finned tube is connected to the water inlet pipe or the water outlet pipe, the other end of the finned tube is connected to the communicating vessel, and protective plates are arranged on the outer sides of the fixing plate and the connecting plate; according to the unpowered air cooler, the air density difference is formed through the heat exchange temperature difference, the density difference drives air to flow, natural convection is formed to achieve cooling of the environment, and the unpowered air cooler meets the requirement for cooling of the special environment, such as a closed space where a person cannot enter for maintenance and a space without power or power supply.

Description

TECHNICAL FIELD

[0001] The utility model relates to air cooler technical field especially relates to a kind of unpowered air cooler. BACKGROUND

[0002] Air cooler, it is with air as cooling medium, heat is transferred from hot fluid to air in the way of convection heat transfer, to realize the purpose of cooling hot fluid equipment. When hot fluid passes through tube bundle, heat is transferred to the air outside the tube through the tube wall; the hot fluid after cooling flows out from air cooler, and the heated air is discharged to atmosphere.

[0003] The existing air cooler is usually provided with fan to drive air flow, so that although it can improve heat exchange efficiency, but it cannot be used for the closed space that cannot enter maintenance and the space without power supply.

[0004] Therefore, an unpowered air cooler is proposed, which is suitable for cooling demand in special environment, such as closed space that cannot enter maintenance and space without power supply. SUMMARY

[0005] In view of the above problems that the existing air cooler cannot be applied to the closed space that cannot enter maintenance and the space without power supply, the utility model is proposed.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: an unpowered air cooler, which comprises finned tubes, an inlet pipe and an outlet pipe, a communication device is arranged between the inlet pipe and the outlet pipe, the finned tubes are arranged in multiple layers, the finned tubes are arranged on both sides of the finned tubes, one end of the finned tubes is connected to the inlet pipe or the outlet pipe, the other end is connected to the communication device, and the outer side of the fixed plate and the connecting plate is provided with a guard plate.

[0007] Preferably, the finned tubes are arranged in three layers from top to bottom, and the number of finned tubes is six.

[0008] Preferably, the three-layer finned tubes comprise two groups of independent but parallel refrigerant channels, one of which is two finned tubes connected to the inlet side of the communication device and one finned tube connected to the outlet side of the communication device; the other refrigerant channel is one finned tube connected to the inlet side of the communication device and two finned tubes connected to the outlet side of the communication device.

[0009] Preferably, the connecting plate is arranged on the outer side of the finned tube, and the fixed plate is arranged on the outer side of the finned tube.

[0010] Preferably, the side of the connecting plate outside the finned tube is provided with a fixing plate, and the fixing plate is connected with the connecting plate in a mutual superposition mode to fix the finned tube.

[0011] Preferably, the finned tube is an integrally formed structure.

[0012] Preferably, two water inlet pipes are arranged on the same side of the air cooler, and two water outlet pipes are arranged on the same side of the air cooler.

[0013] Preferably, two communication devices are arranged, and a fixing rod is arranged between the two communication devices, between the two water inlet pipes and between the two water outlet pipes.

[0014] Preferably, a connecting pipe groove for connecting the finned tube is arranged on the connecting plate and the fixing plate, a connecting hole for fixing the connecting plate, the fixing plate and the guard plate is arranged on the connecting plate and the fixing plate, and a heat dissipation hole is arranged on the connecting plate and the fixing plate.

[0015] Preferably, the guard plate is a C-shaped guard plate, and a guard plate slot hole for the finned tube to pass through is arranged on the guard plate.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The finned tube with an integrally formed structure improves the strength of the finned tube, thereby improving the strength of the air cooler, the finned tube is more stably fixed by the fixing plate and the connecting plate, the communication device is arranged between the water inlet pipe and the water outlet pipe, the strength of the air cooler is improved, a three-layer double-channel structure arrangement is realized, and the cooling effect of the air cooler is improved.

[0018] 2. Two groups of independent but parallel refrigerant channels are designed, one set of common refrigerant water system or two sets of independent refrigerant water systems can be connected, and the standby function can be realized when two sets of independent refrigerant water systems are connected. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0020] Figure 1 It is a structural schematic diagram of the present application.

[0021] Figure 2 It is a top view structural schematic diagram of the present application.

[0022] Figure 3 It is a side view structure schematic diagram of the utility model.

[0023] Figure 4 It is a finned tube structure schematic diagram of the utility model.

[0024] Figure 5 It is a fixed plate structure schematic diagram of the utility model.

[0025] Figure 6 It is a connecting plate structure schematic diagram of the utility model.

[0026] Figure 7 It is a guard plate structure schematic diagram of the utility model.

[0027] Mark explanation:

[0028] 1, finned tube; 2, fixed plate; 21, connecting hole; 3, connecting plate; 31, heat dissipation hole; 4, guard plate; 41, guard plate slot hole; 5, water inlet pipe; 6, water outlet pipe; 7, communicating vessel; 8, fixed rod. Specific implementation

[0029] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below with reference to the drawings of the specification.

[0030] Refer to Figures 1 to 7 , an embodiment of the utility model provides a kind of unpowered air cooler, this unpowered air cooler includes finned tube 1, water inlet pipe 5 and water outlet pipe 6, and communicating vessel 7 is provided between water inlet pipe 5 and water outlet pipe 6, finned tube 1 is provided with multiple, multiple finned tube 1 is arranged in multiple layers, and the both sides of finned tube 1 are provided with fixed plate 2 and connecting plate 3, one end of finned tube 1 is connected to water inlet pipe 5 or water outlet pipe 6, the other end is connected to communicating vessel 7, and guard plate 4 is provided outside fixed plate 2 and connecting plate 3.

[0031] Refer to Figure 1 , Figure 3 and Figure 4 , in the embodiment, finned tube 1 adopts around finned tube 1 structure, and refrigerant is walked in pipe, and cooled air is walked outside pipe, since air side heat exchange efficiency is poor, increase heat exchange area using aluminum or copper fin.

[0032] Further, the fin adopts a ring structure, has no sharp corners and dead zones, the outer diameter D of the fin is 2-3 times the inner diameter d of the fin, the fin adopts a gradually changing thickness design, the inner thickness is thinner than the outer thickness, the material is reduced with the reduction of heat flow density, the economic value is the highest, the thickness at the inner diameter is 1.25-1.75 times the thickness at the outer diameter; the fin adopts a smooth surface design, the surface friction coefficient is reduced, the air resistance is reduced, and the surface roughness is less than 6.3 microns; the fin spacing is 8-10 mm, the viscous layers of air flows between two adjacent fins are ensured not to coincide, and the ratio of the fin height to the fin spacing is controlled to be 1-2.

[0033] Further, the fin is subjected to appearance treatment, which is not limited to electrophoresis and the like, so that the outer surface of the finned tube 1 is black, and radiation heat of the environment space can be maximally absorbed.

[0034] Further, the finned tube 1 is arranged in a manner that the finned tube 1 is laid on the top of the environment space, which is the best, and can form uniform sinking convection heat exchange; when the top of the environment space is limited, the finned tube 1 can also be arranged vertically at the middle upper part close to the outer wall, but a flow guide plate needs to be added to force the air to form upward and downward natural convection; when multiple rows of finned tubes 1 are arranged, the horizontal spacing of the finned tube 1 to the outer diameter of the finned tube 1 needs to be determined according to the temperature difference, the ratio is between 2 and 3, a vertical flow channel is formed, and a larger circulating power and fin surface turbulence are ensured.

[0035] Further, the refrigerant temperature is selected, and the refrigerant temperature needs to have a temperature difference of more than 20℃ with the temperature of the environment to be cooled, and sufficient temperature difference can form sufficient density difference to provide power for air circulation.

[0036] With reference to Figure 1 , Figure 3 and Figure 4 , in the embodiment, the finned tube 1 is integrally formed, the number of the finned tube 1 is six, and the six finned tubes 1 are arranged in three rows upward and downward; two water inlet pipes 5 and two water outlet pipes 6 are arranged, the two water inlet pipes 5 are located on the same side of the air cooler, the two water outlet pipes 6 are located on the same side of the air cooler; two communicating vessels 7 are arranged, and fixed rods are arranged between the two communicating vessels 7, between the two water inlet pipes 5, and between the two water outlet pipes 6.

[0037] With reference to Figures 1 to 3 , in the embodiment, the lower two finned tubes 1 on the front side are connected to the water inlet side of the water inlet pipe 5 and the communicating vessel 7, and the other finned tube 1 on the lower front side is connected to the water outlet side of the water outlet pipe 6 and the communicating vessel 7; similarly, the upper finned tube 1 on the back side is connected to the water inlet side of the water inlet pipe 5 and the communicating vessel 7, and the other two finned tubes 1 on the upper back side are connected to the water outlet side of the water outlet pipe 6 and the communicating vessel 7.

[0038] It can be understood that the cooling water enters from the front water inlet pipe 5, flows into the communication vessel 7 through the two finned pipes 1 connected thereto, and then flows out from the water outlet pipe 6 through another finned pipe 1. The cooling water enters from the back water inlet pipe 5, flows into the back communication vessel 7 through the finned pipe 1 connected thereto, and then flows out from the back water outlet pipe 6 through the other two finned pipes 1. Since each of the front and back communication vessels 7 is connected with three finned pipes 1, the three-layer double-refrigerant channel design can be realized, and the heat exchange efficiency is also increased. The front water inlet pipe 5 and the water outlet pipe 6 can be connected with a refrigerant water system, the back water inlet pipe 5 and the water outlet pipe 6 can be connected with another refrigerant water system, or the front and back water inlet pipes 5 and the water outlet pipes 6 can be connected with one refrigerant water system.

[0039] With reference to Figure 1 and Figure 2 In this embodiment, the connecting plate 3 is arranged on the upper layer of finned pipes 1, and the connecting plate 3 stably clamps and connects the finned pipes 1. The fixing plate 2 is arranged on the lower two layers of finned pipes 1, and is used to stably connect the finned pipes 1. Further, the connecting plate 3 is arranged outside the fixing plate 2, and the fixing plate 2 stably connects the upper two layers of finned pipes 1. The inner layer of fixing plate 2 is arranged outside the connecting plate 3, and the connecting plate 3 stably connects the lower layer of finned pipes 1. Similarly, the back of the air cooler also has the same structure, and the staggered and overlapped structure increases the stability and strength of the finned pipes 1.

[0040] With reference to Figure 5 and Figure 6 The connecting plate 3 and the fixing plate 2 are provided with connecting pipe grooves for connecting the finned pipes 1. The connecting pipe grooves are inclined tooth grooves, which can better limit the movement of the fixing plate 2 and the connecting plate 3, and increase the stability of the connection. The connecting plate 3 and the fixing plate 2 are provided with connecting holes 21 for fixing the connecting plate 3, the fixing plate 2 and the guard plate 4. The connecting plate 3 and the fixing plate 2 are provided with heat dissipation holes 31 to reduce the reduction of service life caused by overheating of the fixing plate 2 and the connecting plate 3.

[0041] With reference to Figure 7 In this embodiment, the guard plate 4 is a C-shaped guard plate. The guard plate 4 is provided with a guard plate slot hole 41 for the finned pipes 1 to pass through. The shape of the guard plate slot hole 41 is adapted to the cross-sectional shape of the finned pipes 1.

[0042] With reference to Figure 1 In this embodiment, the fixing plate 2, the connecting plate 3 and the guard plate 4 are connected by bolts, and the finned pipes 1 and the communication vessels 7 are connected by welding.

[0043] During use, cooling water enters from two water inlets 5, the front one passes through the lower two layers to reach the communicating vessel 7, and then passes through the lower finned tube 1 to flow to the water outlet 6 and then flows out, and the back one passes through the upper one to reach the communicating vessel 7, and then passes through the upper two finned tubes 1 to flow to the water outlet 6 and then flows out, thereby realizing heat exchange.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A non-powered air cooler comprising of finned tubes (1), inlet water pipe (5) and outlet water pipe (6) characterized by: The water inlet pipe (5) and the water outlet pipe (6) are provided with a communication device (7), the finned tube (1) is provided with a plurality of finned tubes (1), the plurality of finned tubes (1) are arranged in multiple layers, the two sides of the finned tube (1) are provided with a fixed plate (2) and a connecting plate (3), one end of the finned tube (1) is connected to the water inlet pipe (5) or the water outlet pipe (6), the other end is connected to the communication device (7), and the outer side of the fixed plate (2) and the connecting plate (3) is provided with a guard plate (4).

2. A passive air cooler as claimed in claim 1, wherein: The plurality of finned tubes (1) are arranged in three layers from top to bottom, and the number of the finned tubes (1) is six.

3. A passive air cooler as claimed in claim 2, wherein: The three-layer finned tube (1) includes two groups of independent but parallel refrigerant channels, one of which is two finned tubes (1) connected to the water inlet side of the communication device (7) and one finned tube (1) connected to the water outlet side of the communication device (7); the other is one finned tube (1) connected to the water inlet side of the communication device (7) and two finned tubes (1) connected to the water outlet side of the communication device (7).

4. A passive air cooler as claimed in claim 3, wherein: The connecting plate (3) is arranged on the outer side of the finned tube (1), and the fixed plate (2) is arranged on the outer side of the finned tube (1).

5. A passive air cooler as claimed in claim 4, wherein: The side of the connecting plate (3) located on the outer side of the finned tube (1) is provided with a fixed plate (2), and the fixed plate (2) and the connecting plate (3) are connected to each other in a stacked manner to fix the finned tube (1).

6. A passive air cooler as claimed in claim 1, wherein: The finned tube (1) is an integral structure.

7. A passive air cooler as claimed in claim 1, wherein: The water inlet pipe (5) and the water outlet pipe (6) are provided with two, two water inlet pipes (5) are located on the same side of the air cooler, and two water outlet pipes (6) are located on the same side of the air cooler.

8. A passive air cooler as claimed in claim 7, wherein: The communication device (7) is provided with two, and the two communication devices (7) are provided with a fixed rod (8) between the two communication devices (7), the two water inlet pipes (5) and the two water outlet pipes (6).

9. A passive air cooler as claimed in claim 1, wherein: The connecting plate (3) and the fixed plate (2) are provided with a connecting pipe groove for connecting the finned tube (1), the connecting plate (3) and the fixed plate (2) are provided with a connecting hole (21), the connecting hole (21) is used for fixing the connecting plate (3), the fixed plate (2) and the guard plate (4), and the connecting plate (3) and the fixed plate (2) are provided with a heat dissipation hole (31).

10. A passive air cooler as claimed in claim 1, wherein: The guard plate (4) is a C-shaped guard plate, and the guard plate (4) is provided with a guard plate slot hole (41) for the finned tube (1) to pass through.

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