Heat exchange device capable of switching double media

Abstract

The invention discloses a heat exchange device capable of switching double media. The heat exchange device comprises a heat medium pipe, a heat dissipation plate, a cooling liquid pipe and a cooling air pipe. The heat medium pipes are densely distributed on one face of the heat dissipation plate and are tightly attached to and fixed to the heat dissipation plate. The cooling liquid pipe is densely distributed on the other face of the heat dissipation plate and is tightly attached to and fixed to the heat dissipation plate. The cooling air pipe and the cooling liquid pipe are arranged on the same face of the heat dissipation plate, the cooling air pipe and the heat dissipation plate are arranged at intervals, so that the cooling liquid pipe is located between the cooling air pipe and the heat dissipation plate, and a plurality of densely-distributed air outlet holes are formed in the face, facing the heat dissipation plate, of the cooling air pipe. The double-medium heat exchanger has the heat exchange function that double media are used at the same time or independently used in a switching mode, the heat exchange effect is conveniently adjusted according to requirements, and energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange equipment, and particularly relates to a heat exchange device capable of switching between two media. Background Art

[0002] Chinese Patent CN202022746936.2 discloses a rapid cooling type outlet air cooling device, the structure of which is as follows: it includes a circulating gas pipe body, a filtering device, an upper heat dissipation plate body, a longitudinal circulating heat exchange pipe, a lower heat dissipation plate body, and a transverse circulating heat exchange pipe. Installation grooves for the circulating gas pipe body are provided on the inner side walls of the upper heat dissipation plate body and the lower heat dissipation plate body. The circulating gas pipe body is installed in the installation grooves, and the upper heat dissipation plate body and the lower heat dissipation plate body are connected by bolts. Both ends of the circulating gas pipe body are respectively connected with an air inlet pipe and an air outlet pipe; it can achieve rapid air intake and rapid cooling, and can improve the cooling effect and save time.

[0003] Chinese Patent CN201820012643.1 discloses a plate-type evaporator and a refrigerator, a heat dissipation plate, and a heat exchange pipe is provided on the heat dissipation plate; wherein, the heat exchange pipe is spirally wound around the front surface of the heat dissipation plate, which can make full use of the effective area of the heat dissipation plate, increase the designed length of the heat exchange pipe, and thus can greatly improve the heat exchange effect of the plate-type evaporator.

[0004] The defects of the above two existing heat exchangers are: the cooling method is single and the effect is not ideal enough. Moreover, in different seasons, it is not possible to adjust the heat exchange effect well and conveniently according to the demand to save energy consumption. Therefore, it is necessary to design a heat exchange form in which two media can be used simultaneously or switched. Summary of the Invention

[0005] The present invention provides a heat exchange device capable of switching between two media, which has the heat exchange function of using two media simultaneously or switching to use only one of them, and is convenient to adjust the heat exchange effect according to the demand to save energy consumption.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A heat exchange device capable of switching between two media includes a heat medium pipe, a heat dissipation plate, a coolant pipe, and a cooling air pipe; the heat medium pipe is densely arranged on one side of the heat dissipation plate and is tightly fixed to the heat dissipation plate; the coolant pipe is densely arranged on the other side of the heat dissipation plate and is tightly fixed to the heat dissipation plate; the cooling air pipe and the coolant pipe are arranged on the same side of the heat dissipation plate, and the cooling air pipe is arranged at an interval from the heat dissipation plate, so that the coolant pipe is located between the cooling air pipe and the heat dissipation plate, and a plurality of densely arranged air outlet holes are provided on the side of the cooling air pipe facing the heat dissipation plate.

[0008] Further, one end of the coolant pipe is set as the liquid inlet pipe, and the other end is set as the liquid outlet pipe. A continuous U-shaped structure is arranged between the liquid inlet pipe and the liquid outlet pipe. Each U-shaped vertical end of the coolant pipe straddles the heat dissipation plate.

[0009] Further, one end of the cooling air pipe is set as the air inlet pipe, and the other end is set as the air outlet pipe. A continuous U-shaped structure is arranged between the air inlet pipe and the air outlet pipe. Each U-shaped vertical end of the cooling air pipe straddles the heat dissipation plate. A plurality of the air outlet holes are densely arranged on one side of each U-shaped vertical end of the cooling air pipe facing the heat dissipation plate.

[0010] Further, each U-shaped vertical end of the coolant pipe is vertically distributed with each U-shaped vertical end of the cooling air pipe.

[0011] Further, a support plate is arranged on both sides of the heat dissipation plate parallel to the two side edges of the U-shaped vertical end of the coolant pipe. The two support plates are arranged in parallel. The bottoms of the two support plates are fixedly connected to the heat dissipation plate. A plurality of connection holes are arranged on the two support plates at equal intervals. The perpendicular distance from the center of each connection hole to the heat dissipation plate is equal. The positions of the plurality of connection holes on the two support plates correspond to each other. Each U-shaped vertical end of the cooling air pipe is inserted into the two corresponding connection holes on the two support plates, so that the cooling air pipe is arranged at an interval from the heat dissipation plate.

[0012] Further, a relief hole is arranged between the connection hole and the heat dissipation plate on the support plate.

[0013] Further, a plurality of arc-shaped grooves are arranged at intervals on one surface of the heat dissipation plate. The radian of the arc-shaped groove matches the outer wall of the heat medium pipe. Each heat medium pipe is closely attached to one arc-shaped groove and is fixedly welded to the heat dissipation plate. One end of each heat medium pipe is set as the inlet, and the other end of each heat medium pipe is set as the outlet.

[0014] The beneficial effects of the present invention are:

[0015] 1) The present invention conducts heat exchange through a heat dissipation plate. A heat medium flows in the heat medium pipe, and the heat medium transfers heat to the heat dissipation plate. A liquid refrigerant medium flows in the coolant pipe, and the coolant pipe is in direct contact with the heat dissipation plate to take away heat. A gas refrigerant medium flows in the cooling air pipe, and the gas refrigerant medium sprays from the air outlet holes towards the heat dissipation plate for air cooling. The two media are independent of each other, and any one of the refrigerant media can be switched to dissipate heat from the heat dissipation plate, or both refrigerant media can be used simultaneously to dissipate heat from the heat dissipation plate. For example, the liquid refrigerant medium is industrial makeup water, and the gas refrigerant medium is compressed air. In spring and winter, only water cooling or air cooling alone is required. In summer and autumn, the temperature of the condensed water is high, and both air cooling and water cooling need to be turned on simultaneously, and the cooling effect is very good. The corresponding heat dissipation method can be selected according to requirements to save energy consumption.

[0016] 2) Both the coolant pipe and the cooling air pipe are of a continuous U-shaped structure, and the two form a crossed structure, so that the heat dissipation can be ensured to be uniform whether the two media are used together or separately.

[0017] 3) The cooling air pipe is arranged at an interval from the heat dissipation plate through the support plate. The airflow sprayed from the air outlet holes diverges towards the two adjacent sides of the support plate and the gap in the cooling air pipe, taking away the heat on the heat dissipation plate and the coolant pipe, and improving the heat dissipation efficiency. Description of the Drawings

[0018] The following further elaborates on the specific embodiments of the present invention in conjunction with the drawings, where:

[0019] Figure 1 is a schematic structural diagram of the main perspective of the present invention;

[0020] Figure 2 is Figure 1 the left view of;

[0021] Figure 3 is a schematic structural diagram of the present invention with the cooling air pipe omitted;

[0022] Figure 4 is a schematic structural diagram of the cooling air pipe in the present invention;

[0023] Figure 5 is a schematic structural diagram of the support plate in the present invention;

[0024] Reference Signs in the Drawings:

[0025] 1 - Heat medium pipe, 2 - Heat dissipation plate, 3 - Coolant pipe, 4 - Cooling air pipe, 5 - Support plate, 31 - Liquid inlet pipe, 32 - Liquid outlet pipe, 41 - Air outlet hole, 42 - Air inlet pipe, 43 - Air outlet pipe, 51 - Connection hole, 52 - Avoidance hole. Specific Embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a part is referred to as being "disposed in the middle", it is not only disposed at the exact middle position, as long as it is not disposed at the two ends, it falls within the scope defined by the middle. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] Refer to Figures 1 to 5As shown in the figure, a heat exchange device with switchable dual media includes a heat medium pipe 1, a heat dissipation plate 2, a coolant pipe 3, and a cooling air pipe 4; the heat medium pipe 1 is densely arranged on one side of the heat dissipation plate 2 and is tightly fixed to the heat dissipation plate 2; the coolant pipe 3 is densely arranged on the other side of the heat dissipation plate 2 and is tightly fixed to the heat dissipation plate 2; the cooling air pipe 4 and the coolant pipe 3 are arranged on the same side of the heat dissipation plate 2, and the cooling air pipe 4 is arranged at an interval from the heat dissipation plate 2, so that the coolant pipe 3 is located between the cooling air pipe 4 and the heat dissipation plate 2, and a plurality of densely arranged air outlet holes 41 are provided on the side of the cooling air pipe 4 facing the heat dissipation plate 2. In the present invention, heat exchange is carried out through the heat dissipation plate 2. A heat medium is circulated in the heat medium pipe 1, and the heat medium transfers heat to the heat dissipation plate 2. A liquid refrigerant medium is circulated in the coolant pipe 3, and the coolant pipe 4 is in direct contact with the heat dissipation plate 2 to take away heat. A gas refrigerant medium is circulated in the cooling air pipe 4, and the gas refrigerant medium is sprayed from the air outlet holes 41 towards the heat dissipation plate 2 for air cooling. The two media are independent of each other, and any one of the refrigerant media can be switched to dissipate heat from the heat dissipation plate 2, or the two refrigerant media can be used simultaneously to dissipate heat from the heat dissipation plate 2. For example, the liquid refrigerant medium is industrial make-up water, and the gas refrigerant medium is compressed air. In spring and winter, only water cooling or air cooling needs to be used separately, without consuming additional energy. In summer and autumn, the temperature of the condensate water is high, and both air cooling and water cooling need to be turned on simultaneously, and the cooling effect is very good. The corresponding heat dissipation method can be selected according to the needs to save energy.

[0030] In this embodiment, a plurality of arc-shaped grooves are provided at intervals on one side of the heat dissipation plate 2. The radian of the arc-shaped groove 2 matches the outer wall of the heat medium pipe 1. Each heat medium pipe 1 is closely attached to an arc-shaped groove and is welded and fixed to the heat dissipation plate 2. One end of each heat medium pipe 1 is set as an inlet, and the other end of each heat medium pipe 1 is set as an outlet; the inlets of each heat medium pipe 1 can be connected in parallel to the same inlet, and the outlets of each heat medium pipe 1 can also be connected in parallel to the same outlet. The same heat medium can be input into each heat medium pipe 1; if there are multiple types of heat media, each heat medium pipe 1 can also be connected to a different heat medium respectively, so that the heat dissipation plate 2 can carry out heat exchange work on multiple heat media simultaneously. The arc-shaped groove can increase the contact area between the heat medium pipe 1 and the heat dissipation plate 2, and the heat dissipation plate 2 can be made of copper plate to improve the heat dissipation efficiency.

[0031] One end of the coolant pipe 3 is set as the liquid inlet pipe 31, and the other end is set as the liquid outlet pipe 32. A continuous U-shaped structure is provided between the liquid inlet pipe 31 and the liquid outlet pipe 32. Each U-shaped vertical end of the coolant pipe 3 straddles the heat dissipation plate 2. The coolant pipe 3 can also be made of copper pipe, and one side of the coolant pipe 3 is fixedly welded to the heat dissipation plate 2. One end of the cooling air pipe 4 is set as the air inlet pipe 42, and the other end is set as the air outlet pipe 43. A continuous U-shaped structure is provided between the air inlet pipe 42 and the air outlet pipe 43. Each U-shaped vertical end of the cooling air pipe 4 straddles the heat dissipation plate 2. A number of the air outlet holes 43 are densely arranged on one side of each U-shaped vertical end of the cooling air pipe 4 facing the heat dissipation plate 2. The air outlet holes 43 on each U-shaped vertical end of the cooling air pipe 4 are arranged at equal intervals, and the air outlet positions are evenly distributed to ensure uniform heat dissipation. In this embodiment, the continuous U-shaped structure can be formed by combining straight pipes and semi-circular bent pipes; it can also be formed by combining two right-angled bent pipes and a short straight pipe to form a U-shaped part, and then connecting with a long straight pipe to form a continuous U-shaped structure. Such connection methods have been disclosed in the prior art.

[0032] Each U-shaped vertical end of the coolant pipe 3 is vertically distributed with each U-shaped vertical end of the cooling air pipe. Both the coolant pipe 3 and the cooling air pipe 4 are of continuous U-shaped structures, and the two form an intersecting structure, so that uniform heat dissipation can be ensured whether the two media are used together or separately.

[0033] In order to support the cooling air pipe 4 at intervals on one side of the heat dissipation plate 2, a support plate 5 is provided on both sides of the U-shaped vertical end of the coolant pipe 3 parallel to the heat dissipation plate 4. The two support plates 5 are arranged in parallel. The bottoms of the two support plates 5 are fixedly connected to the heat dissipation plate 2. A number of connecting holes 51 are provided on the two support plates 5 at equal intervals. The perpendicular distance from the center of each connecting hole 51 to the heat dissipation plate 2 is equal. The positions of the a number of connecting holes 51 on the two support plates 5 correspond to each other. Each U-shaped vertical end of the cooling air pipe 4 is inserted into the two corresponding connecting holes 51 on the two support plates 5, so that the cooling air pipe 4 is arranged at intervals with the heat dissipation plate 2. The bottom of the support plate 5 can be fixedly welded to the heat dissipation plate 2 or fixed with bolts. During installation, first fix the two support plates 5, then insert the straight pipe components of the cooling air pipe correspondingly, and then connect the adjacent two straight pipes end to end through the U-shaped components. The cooling air pipe 4 is arranged at intervals with the heat dissipation plate 5, and the air flow ejected from the air outlet holes 41 diverges to the gaps on both adjacent sides of the support plate 5 and in the cooling air pipe 4, taking away the heat on the heat dissipation plate 2 and the coolant pipe 3; in order to better dredge the air flow, a relief hole 52 can also be provided between the connecting hole 51 and the heat dissipation plate 2 on the support plate 5, so that the air flow can also be evacuated from the relief hole 52 on the support plate 5 to improve the heat dissipation efficiency.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered within the scope of the technical solutions of the present invention.

Claims

1. A switchable dual-medium heat exchange device, characterized in that: It includes a heat medium pipe, a heat sink, a coolant pipe and a cooling air pipe; the heat medium pipe is densely distributed on one side of the heat sink and is tightly fixed to the heat sink; the coolant pipe is densely distributed on the other side of the heat sink and is tightly fixed to the heat sink; the cooling air pipe and the coolant pipe are arranged on the same side of the heat sink, and the cooling air pipe and the heat sink are arranged at intervals so that the coolant pipe is located between the cooling air pipe and the heat sink, and a plurality of densely distributed air outlets are provided on a side of the cooling air pipe facing the heat sink.

2. A switchable dual-medium heat exchange device according to claim 1, characterized in that: One end of the cooling liquid pipe is set as a liquid inlet pipe, and the other end is set as a liquid outlet pipe. A continuous U-shaped structure is set between the liquid inlet pipe and the liquid outlet pipe, and each U-shaped vertical end of the cooling liquid pipe spans the heat sink.

3. A switchable dual-medium heat exchange device according to claim 2, characterized in that: One end of the cooling air pipe is set as an air inlet pipe, and the other end is set as an air outlet pipe. A continuous U-shaped structure is set between the air inlet pipe and the air outlet pipe. Each U-shaped vertical end of the cooling air pipe spans the heat sink. Each U-shaped vertical end of the cooling air pipe is densely distributed with a plurality of the air outlet holes on one side facing the heat sink.

4. A switchable dual-medium heat exchange device according to claim 3, characterized in that: Each U-shaped vertical end of the cooling liquid pipe is vertically distributed with each U-shaped vertical end of the cooling air pipe.

5. The switchable dual-medium heat exchange device according to claim 4, characterized in that: A support plate is provided on both side edges of the heat sink parallel to the U-shaped vertical end of the coolant pipe, the two support plates are arranged in parallel, the bottoms of the two support plates are fixedly connected to the heat sink, a plurality of connecting holes arranged at equal intervals are provided on the two support plates, the center of each connecting hole is at the same distance from the vertical foot of the heat sink, the positions of the plurality of connecting holes on the two support plates correspond one to one, each U-shaped vertical end of the cooling air pipe is inserted into the two corresponding connecting holes on the two support plates, so that the cooling air pipe is arranged at intervals from the heat sink.

6. The switchable dual-medium heat exchange device according to claim 5, characterized in that: The support plate is provided with an avoidance hole between the connection hole and the heat dissipation plate.

7. The switchable dual-medium heat exchange device according to claim 1, characterized in that: A plurality of arc-shaped grooves are arranged at intervals on one surface of the heat dissipation plate, and the curvature of the arc-shaped grooves matches the outer wall of the heat medium pipe. Each heat medium pipe is tightly attached to one of the arc-shaped grooves and is welded and fixed to the heat dissipation plate. One end of each heat medium pipe is set as an inlet, and the other end of each heat medium pipe is set as an outlet.

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