Micro-channel heat exchanger for reducing accumulated liquid

Abstract

The utility model relates to the technical field of micro-channel heat exchangers, and discloses a micro-channel heat exchanger for reducing accumulated liquid, which comprises a first collecting pipe, a second collecting pipe and a plurality of flat pipes, the plurality of flat pipes are uniformly communicated between the first collecting pipe and the second collecting pipe, first side plates are fixed on two sides of the first collecting pipe, and second side plates are fixed on two sides of the second collecting pipe. Second side plates are fixed to the two sides of the second collecting pipe, two electric push rods are installed on the surface of the side, away from the first side plate, of each second side plate, and the extending ends of the electric push rods are connected with connecting rods with the tail ends capable of penetrating to the other sides of the first side plates in a sliding mode. According to the technical scheme, the connecting rod can be pulled by arranging the electric push rod, the first collecting pipe can be regularly pulled to move towards the second collecting pipe in a small stroke mode, the flat pipes are compressed in a small stroke mode and reset again, the deformation state of the flat pipes can be improved, dead angles existing in the flat pipes are reduced, and the working efficiency is improved. Finally, the purpose of reducing accumulated liquid in the flat tube is achieved, and the heat exchange effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to microchannel heat exchanger technical field, concretely to a microchannel heat exchanger for reducing hydrops. BACKGROUND

[0002] Microchannel heat exchanger is a kind of high-efficiency heat exchange equipment, is a kind of heat exchanger with channel equivalent diameter in 10~1000 μm, there are dozens of fine flow channels in the flat tube of this heat exchanger, is connected with header at both ends of flat tube, its channel size is small, make the flow of fluid more turbulent therein, thereby enhanced heat exchange effect, it is usually used in car air conditioner, household air conditioner, refrigeration field and microelectronic device cooling etc. occasion, with small volume, refrigerant charge less, environmental protection and stable performance and so on Advantage.

[0003] The channel size of microchannel heat exchanger is small, and usually has complex geometric shape, although it helps to enhance heat exchange effect, but the slight deformation of flat tube in use increases the dead angle in channel, and further increases the possibility of hydrops, affects heat exchange effect.Therefore, we propose a microchannel heat exchanger for reducing hydrops. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of microchannel heat exchangers for reducing hydrops, by setting electric push rod can pull connecting rod, it can periodically pull the movement of first header to second header small stroke, and the compression of flat tube is small stroke and reset again, it is favorable to improve the deformation state of flat tube and reduce the dead angle existing in it, finally realize the purpose of reducing internal hydrops of flat tube, guarantee heat exchange effect, solve the problem proposed in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of microchannel heat exchanger for reducing hydrops, including first header, second header and flat tube, the flat tube is provided with multiple, and multiple flat tubes are evenly connected between first header and second header;The two sides of the first header are both fixed with first side plate, the two sides of second header are both fixed with second side plate, the surface of every second side plate away from first side plate is installed with two electric push rods, the extending end of electric push rod is connected with the connecting rod that can slide through to the other side of first side plate, and the end of connecting rod is fixed with the abutment plate that is attached to the surface of first side plate, and spring is sleeved on the outer ring of connecting rod between first side plate and second side plate.

[0006] By adopting the above technical scheme, after using heat exchanger for a period of time, make electric push rod pull connecting rod and reset again, in this process, first header will be close to second header in small range after reset, make flat tube be slightly compressed and reset again, it is favorable to improve its deformation condition, reduce the dead angle existing in it, finally reduce internal hydrops of flat tube.

[0007] Optionally, a rod hole is formed in the surface of the first side plate, and the connecting rod penetrates the first side plate through the rod hole.

[0008] Optionally, a conduit is connected to the middle position of the side edge of the first header and the second header, and the two conduits are in communication with the first header and the second header, respectively.

[0009] By adopting the above technical scheme, the cooling liquid or the cooling water can flow in or out through the conduit.

[0010] Optionally, the first header and the second header are arranged in parallel with each other, and the first header and the second header have the same size.

[0011] Optionally, a cleaning port is arranged on the side edge of the first header and the second header, and the cleaning port is in communication with the first header and the second header.

[0012] By adopting the above technical scheme, the interior can be cleaned and maintained through the cleaning port after long-term use.

[0013] Optionally, a sealing cover is connected to the outer ring of the cleaning port in a screwing manner, and the sealing cover is used for plugging the cleaning port.

[0014] By adopting the above technical scheme, the sealing cover is plugged and sealed by the sealing cover screwed on in normal use.

[0015] Compared with the prior art, the beneficial effects of the technical scheme of the present application are as follows:

[0016] 1. The electric push rod is arranged to pull the connecting rod, the first header is periodically pulled to move a small stroke towards the second header, the flat tube is compressed by a small stroke and is reset, the deformation state of the flat tube is improved, the dead angle existing in the flat tube is reduced, the purpose of reducing the internal liquid accumulation in the flat tube is achieved, and the heat exchange effect is ensured.

[0017] 2. The first header and the second header are connected between the first side plate and the second side plate on the two sides of the first header and the second header through the plurality of connecting rods, the strength of the whole structure is ensured, and the plurality of electric push rods are arranged to simultaneously provide greater pulling force. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Fig. 1 It is a whole structure schematic view of the micro-channel heat exchanger for reducing liquid accumulation of the present application;

[0020] Fig. 2The utility model is used for reducing the micro channel heat exchanger's connecting position structure diagram of connecting rod and first side plate.

[0021] In the figure: 1, first header; 11, first side plate; 111, rod hole; 2, second header; 21, second side plate; 3, electric push rod; 31, connecting rod; 311, spring; 312, stop plate; 4, conduit; 5, cleaning port; 51, sealing cover; 6, flat tube. DETAILED DESCRIPTION

[0022] Please refer to Figs. 1-2 The utility model provides a technical scheme: a micro channel heat exchanger for reducing effusion, including first header 1, second header 2 and flat tube 6, flat tube 6 is provided with multiple, and multiple flat tubes 6 evenly communicate between first header 1 and second header 2, and first header 1 and second header 2 are arranged in parallel, and first header 1 and second header 2 are same in size, and different flat tubes 6 are also same in size.

[0023] The side edge intermediate position of first header 1 and second header 2 is connected with conduit 4, and two conduits 4 are communicated with first header 1 and second header 2 respectively, when using, the circulating pipeline of cooling liquid or cooling water is connected to the conduit 4 of first header 1 and second header 2 respectively, and the cooling liquid or cooling water enters first header 1 or second header 2, flows through flat tube 6 and then enters second header 2 or first header 1, and the cooling liquid or cooling water is exchanged with air through flat tube 6 in the process, to realize heat exchange.

[0024] The side edge of first header 1 and second header 2 is provided with cleaning port 5, and cleaning port 5 is communicated with first header 1 and second header 2, when normally using, the outer ring of cleaning port 5 is connected with sealing cover 51 by screwing mode, is used for blocking cleaning port 5, after long-term use, can screw down sealing cover 51, and clean water or cleaning liquid is passed in through the conduit 4 of first header 1 or second header 2, and is discharged from cleaning port 5, to realize the purpose of cleaning inside first header 1 or second header 2 or flat tube 6.

[0025] The difference from the prior art is that the first manifold 1 is fixed with first side plates 11 on both sides, the second manifold 2 is fixed with second side plates 21 on both sides, the first side plates 11 are parallel to the second side plates 21, two electric push rods 3 are mounted on the side surface of each second side plate 21 away from the first side plates 11, a connecting rod 31 is connected to the extending end of the electric push rod 3, the end of the connecting rod 31 is slidably penetrated through the rod hole 111 in the surface of the first side plate 11 to the connecting rod 31 on the other side of the first side plate 11, and the end of the connecting rod 31 is fixed with a stop plate 312 abutting against the surface of the first side plate 11, and the outer ring of the connecting rod 31 between the first side plate 11 and the second side plate 21 is sleeved with a spring 311. During use, the electric push rod 3 can be controlled to pull a small stroke in the direction of the electric push rod 3 through the telescopic end thereof at regular intervals, the first manifold 1 is pulled close to the second manifold 2 through the stop plate 312 in a small stroke, so that all the flat tubes 6 are pressed to be slightly compressed, after the electric push rod 3 is reset, the flat tubes 6 are pulled to reset to the initial state again under the abutting action of the spring 311, which is beneficial to improve the deformation condition, reduce the dead angle existing in the interior, and finally reduce the liquid accumulation in the interior of the flat tubes 6.

[0026] It should be noted that the flat tubes 6 are made of aluminum material, which is slightly soft, can experience slight deformation when being pulled in a small stroke, and will not cause substantial damage to the structure due to the small degree of deformation, and the deformation is temporary, and the flat tubes 6 can maintain the original shape and sealing performance after being reset to the initial state again.

[0027] During use, the first manifold 1 and the second manifold 2 are connected to the circulating pipeline of the cooling liquid or cooling water through the conduit 4, and a fan can be additionally installed to assist heat exchange by facing the variable frequency tube through the support during use. The cooling liquid or cooling water enters the first manifold 1 or the second manifold 2, flows through the flat tubes 6, and then enters the second manifold 2 or the first manifold 1. During long-term use, when the flat tubes 6 may be slightly deformed to increase the dead angle and be more prone to liquid accumulation, the electric push rod 3 can be controlled to pull a small stroke in the direction of the electric push rod 3 through the telescopic end thereof at regular intervals, the first manifold 1 is pulled close to the second manifold 2 through the stop plate 312 in a small stroke, so that all the flat tubes 6 connected between the first manifold 1 and the second manifold 2 are pressed to be slightly compressed, and then the electric push rod 3 is reset, the first manifold 1 is reset under the abutting action of the spring 311 abutting and supporting between the first side plate 11 and the second side plate 21, the flat tubes 6 are pulled to reset to the initial state again, and then the operation is repeated 2-3 times. After the above operation, all the flat tubes 6 experience 2-3 times of pulling and resetting movements, which is beneficial to improve the deformation condition, reduce the dead angle existing in the interior, and finally reduce the liquid accumulation in the interior of the flat tubes 6, so as to ensure the heat exchange effect during use.

Claims

1. A microchannel heat exchanger for reducing liquid accumulation, comprising a first header (1), a second header (2) and a flat tube (6), characterized in that: The flat tubes (6) are provided with multiple, and multiple flat tubes (6) are uniformly communicated between the first header (1) and the second header (2); Both sides of the first header (1) are fixed with first side plates (11), both sides of the second header (2) are fixed with second side plates (21), two electric push rods (3) are installed on the side surface of each second side plate (21) away from the first side plate (11), the extending end of the electric push rod (3) is connected with a connecting rod (31) which can slide through the other side of the first side plate (11), and the end of the connecting rod (31) is fixed with a resisting plate (312) which is attached to the surface of the first side plate (11), and the outer ring of the connecting rod (31) between the first side plate (11) and the second side plate (21) is sleeved with a spring (311).

2. The microchannel heat exchanger for reducing liquid accumulation of claim 1, wherein: The surface of the first side plate (11) is provided with a rod hole (111), and the connecting rod (31) penetrates the first side plate (11) through the rod hole (111).

3. The microchannel heat exchanger for reducing liquid accumulation of claim 1, wherein: The middle positions of the side edges of the first header (1) and the second header (2) are connected with catheters (4), and the two catheters (4) are respectively communicated with the first header (1) and the second header (2).

4. The microchannel heat exchanger for reducing liquid accumulation of claim 1, wherein: The first header (1) and the second header (2) are arranged in parallel, and the sizes of the first header (1) and the second header (2) are the same.

5. The microchannel heat exchanger for reducing liquid accumulation of claim 1, wherein: The side edges of the first header (1) and the second header (2) are provided with cleaning ports (5), and the cleaning ports (5) are communicated with the first header (1) and the second header (2).

6. The microchannel heat exchanger for reducing liquid accumulation of claim 5, wherein: The outer ring of the cleaning port (5) is connected with a sealing cover (51) through a screw connection, which is used to block the cleaning port (5).

Images