CN103913017A - Heat exchanging device - Google Patents

Abstract

A heat exchange device, comprising: a first heat exchanger and a second heat exchanger, the upper end of the first heat exchanger is connected to the upper end of the second heat exchanger, and the lower end of the first heat exchanger Spaced apart from the lower end of the second heat exchanger, the lower end of the first heat exchanger is provided with a refrigerant inlet, the lower end of the second heat exchanger is provided with a refrigerant outlet, and the first heat exchanger and the second heat exchanger is formed by bending a single flat heat exchanger or is composed of two independent flat heat exchangers; The second heat exchanger is between and closer to the second heat exchanger than to the first heat exchanger. According to the substantially inverted V-shaped heat exchange device of the embodiment of the present invention, an air guide member is provided between the first heat exchanger and the second heat exchanger, and the air guide member can improve the distribution of the air volume, so that the distribution of the air volume is compatible with cooling The change of the agent heat transfer parameters is matched, and the heat transfer capacity is improved.

Description

heat exchange device

technical field

The invention relates to the technical field of refrigeration, in particular to a heat exchange device.

Background technique

Heat exchange devices are used in a wide variety of applications, for example in air conditioners. Traditional heat exchange devices are usually flat. However, in some applications, it is necessary to bend the heat exchange device so as to divide the heat exchange device into a first heat exchanger part and a second heat exchanger part (usually called an A-shaped heat exchanger, the first The space between the heat exchanger part and the second heat exchange part is usually called the cavity of the heat exchange device). In use, the heat exchange device is placed in the box, and the wind flows upward from the bottom of the heat exchange device, and exchanges heat with the refrigerant in the heat exchange tube when passing through the first and second heat exchangers. In order to improve the heat exchange performance, an air guide component is usually arranged in the cavity of the A-shaped heat exchanger, however, there is still a demand for improving the heat exchange performance of the traditional air guide component.

Contents of the invention

The present invention is based on the discovery of the following facts and problems by the inventors of the present application: for a bent heat exchange device, the distribution of wind speed (or air volume) on the surface of the heat exchange device has a significant impact on the heat exchange performance of the heat exchange device . Traditionally, the heat exchanging capacity of the heat exchanging device is improved by making the wind speed (air volume) evenly distributed on the heat exchanging device, and for this purpose, an air guiding component is arranged in the cavity of the heat exchanging device. However, the inventors of the present application have found through a large number of studies and experiments that the heat transfer coefficients of refrigerants in different regions of the heat exchange device are different, so that the heat transfer capabilities in different regions are different. The refrigerant inlet flows to the refrigerant outlet, and the temperature will gradually change, resulting in different heat transfer coefficients in different regions of the heat exchange device. For areas with strong heat exchange capacity, more air volume (that is, higher wind speed) is required, thereby improving the heat exchange capacity of the entire heat exchange device. Therefore, conventional air guide packages cannot meet the above requirements.

Therefore, an object of the present invention is to provide a heat exchange device, which improves the distribution of air volume on the heat exchange device and improves the heat exchange capacity.

In order to achieve the above object, an embodiment of the present invention proposes a heat exchange device, the heat exchange device includes: a first heat exchanger and a second heat exchanger, the upper end of the first heat exchanger is connected to the second heat exchanger The upper ends of the heat exchangers are connected, the lower end of the first heat exchanger is spaced apart from the lower end of the second heat exchanger, and the first heat exchanger and the second heat exchanger form a predetermined angle θ, where θ greater than 0 degrees and less than 180 degrees, the lower end of the first heat exchanger is provided with a refrigerant inlet, the lower end of the second heat exchanger is provided with a refrigerant outlet, the first heat exchanger and the second heat exchanger The heat exchanger is formed by bending a single flat heat exchanger or is composed of two independent flat heat exchangers; between and closer to the second heat exchanger than to the first heat exchanger.

According to the substantially inverted V-shaped heat exchange device of the embodiment of the present invention, an air guide member is provided between the first heat exchanger and the second heat exchanger, and the air guide member is closer to the second heat exchanger than the first heat exchanger. Heater, so that the air guide parts can improve the distribution of air volume (wind speed), so that the distribution of air volume can be matched with the change of refrigerant heat transfer parameters, and the heat transfer capacity can be improved.

According to an embodiment of the present invention, the wind guiding component is arranged obliquely relative to the horizontal direction.

According to an embodiment of the present invention, the air guide member is located in a predetermined area adjacent to the refrigerant outlet, and in a horizontal plane, the projection of the air guide member is completely located within the projection of the second heat exchanger.

According to an embodiment of the present invention, the wind guiding component is a flat plate, a corrugated plate or an arc-shaped plate.

According to an embodiment of the present invention, the lower end of the air guide member is connected to the lower end of the second heat exchanger, and the lower end of the first heat exchanger is horizontally connected to the lower end of the second heat exchanger. The distance in the direction is L, the length of the air guide part is L2, and the angle between the air guide part and the second heat exchanger is γ, wherein: 0<L2/L≤1/3; 0°<γ≤90°-(θ/2).

According to an embodiment of the present invention, the included angle between the wind guiding component and the horizontal direction is β, and the vertical distance between the upper end of the wind guiding component and the lower end of the wind guiding component is H2 , the distance between the lower end of the air guiding component and the lower end of the second heat exchanger in the horizontal direction is L1, and the distance between the lower end of the first heat exchanger and the lower end of the second heat exchanger The vertical distance between the connection line of , and the lower end of the air guide component is H1, where: 0.2≤(H1+H2)/H<1; 0≤L1/L<0.5; 0°≤β≤ 90°-θ/2.

According to an embodiment of the present invention, the wind guide component is a V-shaped plate, and the V-shaped plate includes a first plate leg and a second plate leg, and the lower end of the first plate leg and the lower end of the second plate leg are connected to each other. connected, the second plate leg is closer to the second heat exchanger than the first plate leg.

According to an embodiment of the present invention, the included angle between the first plate leg and the second plate leg is α, the angle between the first plate leg and the horizontal direction is β, and the second plate leg The distance between the upper end of the plate leg and the lower end of the second plate leg in the vertical direction is H2, and the distance between the lower end of the first and second plate leg and the lower end of the second heat exchanger is horizontal The distance in the direction is L1, and the connection line between the lower end of the first heat exchanger and the lower end of the second heat exchanger and the lower ends of the first and second plate limbs are in the vertical direction The distance is H1, where: 0.2≤[H1+H2]/H<1; 0<L1/L<0.5; 0°<α+β≤135° and β<90°.

According to an embodiment of the present invention, the first plate limb is inclined relative to the horizontal direction, and the second plate limb extends vertically or is inclined relative to the horizontal direction.

According to an embodiment of the present invention, the lower end of the first heat exchanger is flush with the lower end of the second heat exchanger.

According to an embodiment of the present invention, the first plate limb is an arc-shaped plate, the second plate limb is a flat plate and extends along the vertical direction, and the first plate limb is inclined relative to the horizontal direction and faces or moves away from the The direction of the second plate limb protrudes; or the first plate limb and the second plate limb are arc-shaped plates that protrude toward the second heat exchanger or the first heat exchanger; or The second plate limb is an arc-shaped plate, the first plate limb is composed of a first arc-shaped segment and a second arc-shaped segment, and the protruding directions of the first arc-shaped segment and the second arc-shaped segment are opposite.

According to an embodiment of the present invention, the second plate leg is a flat plate extending in the vertical direction, the first plate leg includes a first plate segment and a second plate segment, and the second plate segment is connected to the first plate segment. Two plate legs are connected, the first plate segment is bent toward the second plate leg, and the angle between the first plate segment and the second plate segment is δ, wherein 90°≤δ<180° .

According to an embodiment of the present invention, each of the first plate leg and the second plate leg includes a first plate segment and a second plate segment, and the first plate segment of the first plate leg faces the The second plate leg is bent, the first plate segment of the second plate leg is bent toward the first plate leg, and the second plate segment of the second plate leg extends along the vertical direction.

According to an embodiment of the present invention, a heat exchange device is provided, and the heat exchange device includes: a first heat exchanger and a second heat exchanger, the upper end of the first heat exchanger is connected to the second heat exchanger The upper ends are connected, the lower end of the first heat exchanger is spaced apart from the lower end of the second heat exchanger, and the first heat exchanger and the second heat exchanger form a predetermined angle θ, wherein θ is greater than 0 degrees and less than 180 degrees, the lower end of the first heat exchanger is provided with a refrigerant inlet, and the lower end of the second heat exchanger is provided with a refrigerant outlet; Between the heat exchanger and the second heat exchanger, the amount of air guided by the air guide member into a predetermined area on the second heat exchanger adjacent to the refrigerant outlet is smaller than that guided by the air guide member The air volume of other regions on the second heat exchanger and the air volume guided by the air guiding member to the first heat exchanger.

According to the substantially inverted V-shaped heat exchange device of the embodiment of the present invention, the air guide member can direct more air to the areas with stronger heat exchange capacity of the first heat exchanger and the second heat exchanger, improving the air volume (wind speed) The distribution improves the heat transfer capacity.

According to an embodiment of the present invention, the first heat exchanger is divided into a first upper heat exchange section and a first lower heat exchange section, and the second heat exchanger is divided into a second upper heat exchange section and a second The lower heat exchange section, wherein the air volume F1 guided by the air guide member to the first lower heat exchange section, the air volume F2 guided by the air guide member to the first upper heat exchange section, and the The air volume F3 guided by the air guide member to the second upper heat exchange section is greater than the air volume F4 guided by the air guide member to the second lower heat exchange section.

Description of drawings

Fig. 1 is a schematic diagram of a heat exchange device according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a heat exchange device according to a first alternative embodiment of the present invention.

Fig. 3 is a schematic perspective view of a heat exchange device according to a first alternative embodiment of the present invention.

Fig. 4 is a curve comparison chart of the flow-through wind speed of the heat exchange device according to the first alternative embodiment of the present invention and the flow-through wind speed of two traditional heat exchange devices.

Fig. 5 is a columnar comparison chart of the heat exchange capacity and wind pressure of the wind field of the heat exchange device according to the first alternative embodiment of the present invention and the heat exchange capacity and wind pressure of the wind field of two traditional heat exchange devices.

Fig. 6 is a schematic diagram of a heat exchange device according to a second alternative embodiment of the present invention.

Fig. 7 is a schematic diagram of a heat exchange device according to a third alternative embodiment of the present invention.

Fig. 8 is a schematic diagram of a heat exchange device according to a fourth alternative embodiment of the present invention.

Fig. 9 is a schematic diagram of a heat exchange device according to a fifth alternative embodiment of the present invention.

Fig. 10 is a schematic diagram of a heat exchange device according to a sixth alternative embodiment of the present invention.

Fig. 11 is a schematic diagram of a heat exchange device according to a seventh alternative embodiment of the present invention.

Fig. 12 is a schematic diagram of a heat exchange device according to an eighth alternative embodiment of the present invention.

Fig. 13 is a schematic diagram of a heat exchange device according to a ninth alternative embodiment of the present invention.

Fig. 14 is a schematic diagram of a heat exchange device according to a tenth alternative embodiment of the present invention.

Fig. 15 is a schematic diagram of a heat exchange device according to an eleventh alternative embodiment of the present invention.

Fig. 16 is a schematic diagram of a heat exchange device according to a twelfth alternative embodiment of the present invention.

Reference signs: heat exchange device 1, first heat exchanger 100, refrigerant inlet 110, first upper heat exchange section II, first lower heat exchange section I, second heat exchanger 200, refrigerant outlet 210, first Two upper heat exchange section III, second lower heat exchange section IV, air guide member 300, first plate leg 310, first arc section 311, second arc section 312, first flat section 313, second flat section 314 , the second board limb 320 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The distribution uniformity of wind speed (air volume) on the surface of the heat exchange device has a significant impact on the heat transfer performance of the heat exchange device. Traditionally, for a substantially inverted V-shaped heat exchange device, an air guiding component is provided inside the heat exchange device so that the wind speed is evenly distributed on the heat exchange device. However, the inventors of the present application found that due to the different heat transfer coefficients of the refrigerant in different regions of the heat exchanger, the heat transfer capabilities of the refrigerant in different regions of the heat exchanger are different. Therefore, if the air volume is evenly distributed on the heat exchange device, there will be insufficient air volume matching in areas with strong heat exchange capacity, and too much air volume in areas with weak heat exchange capacity, which will affect the heat exchange capacity of the heat exchange device. Based on the above findings, the applicant proposes a heat exchange device whose heat exchange capacity is improved.

A heat exchange device 1 according to an embodiment of the present invention is described below with reference to FIGS. 1-16 .

As shown in FIGS. 1-16 , the heat exchange device 1 according to the embodiment of the present invention includes a first heat exchanger 100 , a second heat exchanger 200 and an air guide member 300 .

The upper end of the first heat exchanger 100 is connected to the upper end of the second heat exchanger 200, the lower end of the first heat exchanger 100 is spaced apart from the lower end of the second heat exchanger 200 in the longitudinal direction X, and the first heat exchanger 100 is connected to the lower end of the second heat exchanger 200. The second heat exchanger 200 forms a predetermined included angle θ, where 0<θ<180°, so that the first heat exchanger 100 and the second heat exchanger 200 form a substantially inverted V-shaped heat exchange device 1 .

The inner surface of the first heat exchanger 100 (the right side surface of the first heat exchanger 100 in FIG. 1 ) and the inner surface of the second heat exchanger 200 (the left side surface of the second heat exchanger 200 in FIG. 1 ) are mutually relatively. The lower end of the first heat exchanger 100 is provided with a refrigerant inlet 110 , and the lower end of the second heat exchanger 200 is provided with a refrigerant outlet 210 . The first heat exchanger 100 and the second heat exchanger 200 and the space defined by the plane passing through the lower ends of the first heat exchanger 100 and the second heat exchanger 200 may be referred to as an inner chamber of the heat exchange device.

The first heat exchanger 100 and the second heat exchanger 200 can be formed by bending a single flat heat exchanger, or can be formed by connecting two independent flat heat exchangers.

When the first heat exchanger 100 and the second heat exchanger 200 are two flat heat exchangers independent of each other, the upper end of the first heat exchanger 100 is connected to the upper end of the second heat exchanger 200, and the connection here should be used in a broad sense It is understood that as long as the upper ends of the first heat exchanger 100 and the second heat exchanger 200 are adjacent to and communicate with each other and form a substantially inverted V-shaped heat exchange device. For example, the upper end of the first heat exchanger 100 can be directly connected to the upper end of the second heat exchanger 200 or connected through a connecting piece. For another example, the upper end of the first heat exchanger 100 and the upper end of the second heat exchanger 200 can share A header.

The air guiding component 300 is located between the first heat exchanger 100 and the second heat exchanger 200 and is closer to the second heat exchanger 200 than to the first heat exchanger 100 . In other words, the air guide member 300 can be arranged between the inner surface of the first heat exchanger 100 and the inner surface of the second heat exchanger 200 (that is, in the inner cavity of the heat exchange device 1 ), and the air guide member 300 is opposite to the inner surface of the second heat exchanger 200 The inner surface of the first heat exchanger 100 is closer to the inner surface of the second heat exchanger 200 . For a better understanding, for example, if the opening of the heat exchange device 1 is set downward, in the horizontal plane, the area where the projection of the air guiding member 300 overlaps with the projection of the second heat exchanger 200 is larger than the projection of the air guiding member 300 and the second heat exchanger 200. A region where the projections of a heat exchanger 100 overlap.

By arranging the air guide member 300 as described above, the distribution of the air volume on the first heat exchanger 100 and the second heat exchanger 200 can be adjusted. The air volume and wind speed in the area where the heat exchange coefficient of the heat exchange device is small is small, thereby improving the heat exchange capacity of the heat exchange device and improving the heat exchange efficiency. In other words, match the air volume with the heat transfer capacity of the refrigerant, so that more air passes quickly through areas with high heat transfer capacity, and less wind passes through areas with weak heat transfer capacity more slowly, thereby greatly improving the heat exchange rate. The heat exchange capacity of the thermal device 1.

Fig. 4 shows a graph comparing the wind speed change through the heat exchange device 1 according to the embodiment of the present invention and the wind speed change through two traditional heat exchange devices, wherein two traditional heat exchange devices, one is not provided with a wind guide The heat exchange device of the component, another kind is the heat exchange device that the wind guide component is arranged symmetrically. It can be seen from Fig. 4 that the wind speed is the highest in the middle of the heat exchange device (the top of the inner chamber of the inverted V-shaped heat exchange device) for the heat exchange device without the air guiding component. The heat exchange device with symmetrically arranged air guide components, the wind speed at both ends of the heat exchange device is relatively small, and the wind speed in the middle is uniform and relatively large. According to the heat exchange device 1 of the embodiment of the present invention, the air guide member 300 is arranged off-center and close to the second heat exchanger 200. Along the direction from the refrigerant inlet to the refrigerant outlet, the upstream area of the heat exchange device (near the refrigerant Inlet 110) the wind speed is uniform and large, and the wind speed in the downstream area (near the refrigerant outlet 210) is relatively small, so the wind speed can be compared with the exchange rate of each area of the first heat exchanger 100 and the second heat exchanger 200 The heat capacity matching improves the overall heat exchange capacity of the heat exchange device 1 .

Fig. 5 shows a columnar comparison chart of the heat exchange capacity and the wind pressure of the wind field between the heat exchange device 1 according to the embodiment of the present invention and two traditional heat exchange devices. Among them, there are two traditional heat exchange devices, one is a heat exchange device without air guide parts, and the other is a heat exchange device with symmetrically arranged air guide parts. It can be seen from Fig. 5 that, according to the heat exchange device 1 of the embodiment of the present invention, the air guide member 300 is arranged off-center near the second heat exchanger 200, so that the main heat exchange area of the heat exchange device can fully perform heat exchange, which is relatively small. The heat exchange capacity Q of the heat exchange device 1 is greatly improved. At the same time, placing the air guide member 300 at an off-center position of the heat exchange device produces less disturbance to the airflow than the air guide member of a traditional heat exchange device, so the resulting wind field pressure drop ΔP is smaller.

It can be understood that the heat exchange device 1 according to the embodiment of the present invention can be composed of the first heat exchanger 100 and the second heat exchanger 200 to form a substantially inverted V shape, and can also be composed of multiple flat heat exchangers or one flat heat exchanger. The heater is bent multiple times to form other shapes including an inverted V shape. For example, the heat exchange device 1 according to the embodiment of the present invention can be connected by three flat heat exchangers or one flat heat exchanger can be bent twice to form a substantially N-shape. The heat exchangers are connected or a flat plate heat exchanger is bent three times to form a general M or W shape.

In some embodiments of the present invention, the lower end of the first heat exchanger 100 is flush with the lower end of the second heat exchanger 200 . For example, the first heat exchanger 100 and the second heat exchanger 200 may be symmetrical with respect to an angle bisector between the first heat exchanger 100 and the second heat exchanger 200 .

In some embodiments of the present invention, the air guide member 300 may be disposed in a predetermined area adjacent to the refrigerant outlet 210 . For example, in a horizontal plane, the projection of the air guiding member 300 may be completely located within the projection of the second heat exchanger 200 . That is to say, taking the angle bisector of the included angle θ between the first heat exchanger 100 and the second heat exchanger 200 as the dividing line, the air guiding member 300 can be arranged on the angle bisector adjacent to the second heat exchanger 200 side. In this way, the air volume at the refrigerant outlet 210 can be blocked by the air guiding component 300 , so that more air volume can be blown to other areas.

A heat exchange device 1 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

In the description of the following embodiments, for the convenience of description, the first heat exchanger 100 is divided into two sections, wherein the section adjacent to the refrigerant inlet 110 is the first lower heat exchange section I, and the other section is the first upper heat exchange section II . Likewise, the second heat exchanger 200 is divided into two sections, wherein the second lower heat exchange section IV is adjacent to the refrigerant outlet 210 , and the other section is the second upper heat exchange section III.

As shown in Figure 1, the heat exchange device 1 according to this embodiment of the present invention includes a first heat exchanger 100, a second heat exchanger 200, and an air guide member 300, the air guide member 300 is a flat plate, and is inclined relative to the horizontal direction ground setting. The first heat exchanger 100 and the second heat exchanger 200 are formed by bending a flat plate heat exchanger. Agent outlet 210.

As shown in Figure 1, the included angle between the wind guiding component 300 and the horizontal direction is β, the distance between the upper end of the wind guiding component 300 and the lower end of the wind guiding component 300 in the vertical direction is H2, and the wind guiding component 300 The distance between the lower end of the first heat exchanger 100 and the lower end of the second heat exchanger 200 in the horizontal direction is L1, and the line between the lower end of the first heat exchanger 100 and the lower end of the second heat exchanger 200 and the lower end of the air guide member 300 are at The distance in the vertical direction is H1, where 0.2≤(H1+H2)/H<1, 0≤L1/L<0.5, 0°≤β≤90°-θ/2.

As shown in FIG. 7 , optionally, the air guide member 300 is a corrugated plate, that is, the cross section of the air guide member 300 is composed of multiple arcs. The air guide member 300 is arranged obliquely between the first heat exchanger 100 and the second heat exchanger 200 and is closer to the second heat exchanger 200, that is, the lower end of the air guide member 300 is closer to the second heat exchanger than the upper end of the air guide member 300. Heat exchanger 200. The air guiding component 300 adopts a corrugated plate, which can guide the airflow to the first heat exchanger 100 multiple times.

As shown in FIG. 8 , in an optional example, the air guide member 300 is a curved plate and is obliquely disposed adjacent to the second heat exchanger 200 , and the middle part of the air guide member 300 may protrude toward the first heat exchanger 100 . In this embodiment, the arc-shaped wind guiding member 300 has a small windward area, thereby reducing the generated pressure drop of the wind field.

As shown in FIG. 6 , in another implementation of the present invention, the air guide member 300 may be a flat plate arranged obliquely and connected to the lower end of the second heat exchanger 200 . Specifically, the lower end of the air guide member 300 may be connected to a header forming the refrigerant outlet 210 . The distance between the lower end of the first heat exchanger 100 and the lower end of the second heat exchanger 200 in the horizontal direction is L, the length of the air guide member 300 is L2, and the distance between the air guide member 300 and the second heat exchanger 200 is The included angle is γ, where 0<L2/L≤1/3, 0°<γ≤90°-(θ/2).

In this example, since the air guiding component 300 is connected to the second heat exchanger 200 at the refrigerant outlet 210, the generated pressure drop of the wind field can be reduced. In addition, the fins in the area of the second lower heat exchange section IV are generally denser, and more condensed water is formed on the fins in this area, and the air guiding component 300 is arranged in this area to prevent the condensed water from dripping into the air duct.

In some specific embodiments of the present invention, the air guide member 300 can also be a V-shaped plate, as shown in Figure 2 and Figure 9-16, the flat plate heat exchanger is bent to form the first heat exchanger 100 and the second heat exchanger The heat exchanger 200, the angle between the first heat exchanger 100 and the second heat exchanger 200 is an acute angle, the lower end of the first heat exchanger 100 is provided with a refrigerant inlet 110, and the lower end of the second heat exchanger 200 is provided with The refrigerant outlet 210 and the air guide member 300 are disposed between the first heat exchanger 100 and the second heat exchanger 200 and adjacent to the second heat exchanger 200 .

The wind guiding part 300 includes a first plate leg 310 and a second plate leg 320, the lower end of the first plate leg 310 and the lower end of the second plate leg 320 are connected to each other, that is, the opening of the V-shaped plate faces upwards, and the second plate leg 320 is higher than that of the second plate leg 320. The first plate leg 310 is closer to the second heat exchanger 200 . Thus, the air volume will be divided into two airflows from the bottom of the V-shaped plate, and flow upward along the two sides of the V-shaped plate respectively.

The angle between the first plate limb 310 and the second plate limb 320 is α, the angle between the first plate limb 310 and the horizontal direction is β, the upper end of the second plate limb 320 and the lower end of the second plate limb 320 The distance in the vertical direction between them is H2, the distance in the horizontal direction between the lower ends of the first plate limb 310 and the second plate limb 320 and the lower end of the second heat exchanger 200 is L1, and the first heat exchanger The vertical distance between the lower end of the 100 and the lower end of the second heat exchanger 200 and the lower ends of the first plate leg 310 and the second plate leg 320 is H1. Wherein, 0.2≤[H1+H2]/H<1, 0<L1/L<0.5, 0°<α+β≤135° and β<90°.

As shown in Figure 2, the air guide member 300 can be formed by bending a flat plate, or by connecting the lower ends of two separate plates, that is, the first plate limb 310 and the second plate limb 320 are both flat plates, and the second plate The limb 320 extends along the vertical direction, and the first plate limb 310 is inclined relative to the horizontal direction. Specifically, the first plate leg 310 may extend upward from the lower end of the second plate leg 320 and toward the first heat exchanger 100 . As shown in Figure 2, the wind passing through the left side of the air guide part 300 will blow to the first lower heat exchange section I and the first upper heat exchange section II, while the wind passing through the right side of the air guide part 300 will blow to the first heat exchange section II. Second, the upper heat exchange section III.

In another embodiment of the present invention, as shown in FIG. 9 , the air guide member 300 is formed by bending a flat plate, and the first plate limb 310 and the second plate limb 320 are both flat plates and are inclined relative to the horizontal direction. For example, based on the left-right direction in FIG. 9 , the lower end of the second board limb 320 is inclined to the right compared to the upper end of the second board limb 320 , and the first board limb 310 extends leftward and upward from the lower end of the second board limb 320 . In this way, under the guidance of the air guide member 300, the air volume will be blown more concentratedly to the three areas of the first lower heat exchange section I, the first upper heat exchange section II, and the second upper heat exchange section III, which is beneficial to improve the heat exchange device 1. heat exchange capacity.

In some embodiments of the present invention, the first board limb 310 and the second board limb 320 may also adopt arc-shaped boards. For example, as shown in FIG. 10 , the first plate limb 310 is an arc-shaped plate, the second plate limb 320 is a flat plate and extends in the vertical direction, and the first plate limb 310 is inclined relative to the horizontal direction and faces the side of the second plate limb 320. The direction is convex. While the air guiding component 300 guides the air volume to the first lower heat exchange section I, the first upper heat exchange section II and the second upper heat exchange section III, the air volume in these three areas will be more concentrated in the area with the strongest heat exchange capacity. The first lower heat exchange section I.

Of course, the first plate leg 310 can also protrude toward the direction of the first heat exchanger 100. As shown in FIG. Section II and the second upper heat exchange section III. On the other hand, the arc-shaped structure of the first plate leg 310 is close to the streamline of the airflow, so the pressure drop of the wind field generated is smaller.

Both the first plate leg 310 and the second plate leg 320 can also be arc-shaped plates. As shown in FIG. A plate leg 310 can guide the airflow to blow to the first lower heat exchange section I, while the structure of the second plate leg 320 is close to the streamline of the airflow, so that the wind field can generate a small wind field pressure drop.

As shown in FIG. 13 , the first plate leg 310 and the second plate leg 320 can both protrude toward the direction of the first heat exchanger 100, and the second plate leg 320 can guide the airflow to the second upper heat exchange section III, and The first plate leg 310 can guide the airflow to the first lower heat exchange section I and the first upper heat exchange section II, and the generated pressure drop of the wind field is small.

One of the first plate limb 310 and the second plate limb 320 may adopt an arc-shaped plate and the other may adopt an arc-shaped plate constituted by a plurality of arcs. For example, as shown in Figure 14, the second plate limb 320 can be a curved plate, and the first plate limb 310 can be formed by the first arc segment 311 and the second arc segment 312, the first arc segment 311 and the second arc segment The protruding directions of the two arc segments 312 are opposite. Specifically, the middle part of the second plate leg 320 protrudes toward the second heat exchanger 200, the lower end of the second arc segment 312 is connected to the lower end of the second plate leg 320, and the second arc segment 312 faces the second plate leg 320 protrudes, the lower end of the first arc segment 311 is connected with the upper end of the second arc segment 312 and has a curve transition, and the second arc segment 312 protrudes toward the first heat exchanger 100 .

In some specific embodiments of the present invention, as shown in Figure 15 and Figure 16, the heat exchange device 1 includes a first heat exchanger 100, a second heat exchanger 200 and an air guide member 300, the first heat exchanger 100 and The second heat exchanger 200 is bent by a flat plate heat exchanger to form an inverted V shape with the opening facing downward. The agent outlet 210, the air guide member 300 is arranged between the first heat exchanger 100 and the second heat exchanger 200 and is closer to the second heat exchanger 200, the air guide member 300 is connected by the first plate leg 310 and the second heat exchanger at the lower end. Two plate limbs 320 are formed.

As shown in Figure 15, the second plate limb 320 is a plate extending vertically, the first plate limb 310 includes a first plate segment 313 and a second plate segment 314, the lower end of the second plate segment 314 is connected to the second plate segment The lower ends of 320 are connected, the lower end of the first plate segment 313 is connected with the upper end of the second plate segment 314 and bent towards the second plate leg 320, the angle between the first plate segment 313 and the second plate segment 314 is δ, 90°≤δ<180°.

Optionally, both the first plate leg 310 and the second plate leg 320 may be bent flat plates. For example, as shown in Figure 16, each of the first plate limb 310 and the second plate limb 320 includes a first plate segment 313 and a second plate segment 314, and the first plate segment 313 of the second plate leg 320 is vertically Extending in a straight direction, the first plate segment 313 of the second plate leg 320 is bent upward from the second plate segment 314 of the second plate leg 320 and bent toward the first plate leg 310, and the second plate segment 314 of the first plate leg 310 is bent from The second plate segment 314 of the second plate leg 320 extends upward and toward the first heat exchanger 100 , and the first plate segment 313 of the first plate leg 310 extends upward from the second plate segment 314 of the first plate leg 310 toward the second heat exchanger 100 . Board limb 320 bending. In other words, the first plate segment 313 of the first plate leg 310 and the first plate segment 313 of the second plate leg 320 are relatively bent.

A heat exchange device 1 according to another embodiment of the present invention is described below with reference to FIGS. 1-16 .

As shown in FIGS. 1-16 , the heat exchange device 1 according to the embodiment of the present invention includes a first heat exchanger 100 , a second heat exchanger 200 and an air guide member 300 .

The upper end of the first heat exchanger 100 is connected to the upper end of the second heat exchanger 200, the lower end of the first heat exchanger 100 is spaced apart from the lower end of the second heat exchanger 200 in the longitudinal direction X, and the first heat exchanger 100 is connected to the lower end of the second heat exchanger 200. The second heat exchanger 200 forms a predetermined included angle θ, where 0<θ<180°, so that the first heat exchanger 100 and the second heat exchanger 200 form a substantially inverted V-shaped heat exchange device 1 .

The inner surface of the first heat exchanger 100 (the right side surface of the first heat exchanger 100 in FIG. 1 ) and the inner surface of the second heat exchanger 200 (the left side surface of the second heat exchanger 200 in FIG. 1 ) are mutually relatively. The lower end of the first heat exchanger 100 is provided with a refrigerant inlet 110 , and the lower end of the second heat exchanger 200 is provided with a refrigerant outlet 210 . The first heat exchanger 100 and the second heat exchanger 200 and the space defined by the plane passing through the lower ends of the first heat exchanger 100 and the second heat exchanger 200 may be referred to as an inner chamber of the heat exchange device.

The air guide member 300 is located between the first heat exchanger 100 and the second heat exchanger 200, and the air volume guided by the air guide member 300 to a predetermined area adjacent to the refrigerant outlet 210 on the second heat exchanger 200 is smaller than that of the air guide member. The air volume guided by 300 to other areas on the second heat exchanger 200 and the air volume guided by the air guide member 300 to the first heat exchanger 100 . In other words, the air guiding component 300 can improve the distribution of the air volume in each area of the first heat exchanger 100 and the second heat exchanger 200 by guiding the flow direction of the air. Specifically, after the wind is guided by the air guide member 300, the air volume in the predetermined area adjacent to the refrigerant outlet 210 on the second heat exchanger 200 is smaller than the air volume in other areas on the second heat exchanger 200, and the second heat exchanger 200 The air volume in the predetermined area adjacent to the refrigerant outlet 210 on the 200 is smaller than the air volume on the first heat exchanger 100 .

As the refrigerant flows from the refrigerant inlet 110 to the refrigerant outlet 210 through the first heat exchanger 100 and the second heat exchanger 200, the temperature will gradually change, so the heat transfer capacity of the refrigerant located at the refrigerant outlet 210 is relatively weak . By setting the air guide member 300, the air guide member 300 is used to improve the distribution of the air volume on the first heat exchanger 100 and the second heat exchanger 200, so that the air volume at the refrigerant outlet 210 on the second heat exchanger 200 is smaller than that of the second heat exchanger 200. The air volume in other areas on the heat exchanger 200 and the air volume in the first heat exchanger 100 can match the air volume with the heat exchange capacity of the refrigerant, improving the heat exchange capacity of the heat exchange device 1 .

In a specific embodiment of the present invention, as shown in FIG. 1 , the air guide member 300 is a flat plate arranged obliquely relative to the horizontal direction, and the air guide member 300 is closer to the second heat exchanger 100 than the first heat exchanger 100 . device 200.

The air volume F1 guided by the air guide part 300 to the first lower heat exchange section I, the air volume F2 guided by the air guide part 300 to the first upper heat exchange section II, and the air volume F2 guided by the air guide part 300 to the second upper heat exchange section The air volume F3 on section III is greater than the air volume F4 guided by the air guide member 300 to the second lower heat exchange section IV, that is, the air volume F1 at the first lower heat exchange section I and the air volume at the first upper heat exchange section II F2 and the air volume F3 at the second upper heat exchange section III are greater than the air volume F4 at the second lower heat exchange section IV. Since the heat exchange capacity of the refrigerant in the first lower heat exchange section I, the heat exchange capacity of the refrigerant in the first upper heat exchange section II, and the heat exchange capacity of the refrigerant in the second upper heat exchange section III are all greater than those of the refrigerant in the second upper heat exchange section III. The heat exchange capacity of the second lower heat exchange section IV, so that the air volume can be directed to three areas with stronger heat exchange capabilities: the first lower heat exchange section I, the first upper heat exchange section II and the second upper heat exchange section III , which is beneficial to improve the heat exchange capacity of the heat exchange device 1 .

According to the embodiment of the present invention, the air guide member 300 is placed in the area off-center and close to the refrigerant outlet 210 inside the inverted V-shaped heat exchange device to guide the airflow blowing to the inverted V-shaped heat exchange device, so that the first lower heat exchange section Ⅰ. The first upper heat exchange section II and the second upper heat exchange section III obtain greater wind speed.

According to the substantially inverted V-shaped heat exchange device 1 of the embodiment of the present invention, an off-center position is set between the first heat exchanger 100 and the second heat exchanger 200 (for example, offset from the first heat exchanger 100 and the second heat exchanger The air guide part 300 provided on the angle bisector between the heat exchangers 200), the air guide part 300 can guide the wind to the area with a strong heat exchange capacity on the first heat exchanger 100 and the second heat exchanger 200, improving the air volume. The distribution of the air volume matches the change of the heat transfer parameters of the refrigerant, which improves the heat transfer capacity.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (15)

1. a heat-exchanger rig, is characterized in that, comprising:

First Heat Exchanger and the second heat exchanger, the upper end of described First Heat Exchanger is connected with the upper end of described the second heat exchanger, the lower end of the lower end of described First Heat Exchanger and described the second heat exchanger is spaced apart, described First Heat Exchanger becomes predetermined angle theta with the second heat exchanger, wherein θ is greater than 0 degree and is less than 180 degree, the lower end of described First Heat Exchanger is provided with refrigerant inlet, the lower end of described the second heat exchanger is provided with refrigerant outlet, and described First Heat Exchanger and the second heat exchanger are by forming single flat plate heat exchanger bending or be made up of two flat plate heat exchangers independent of each other; With

Wind guide component, described wind guide component more approaches described the second heat exchanger between described First Heat Exchanger and described the second heat exchanger and compared with the described First Heat Exchanger of distance.

2. heat-exchanger rig according to claim 1, is characterized in that, described wind guide component arranges obliquely with respect to horizontal direction.

3. heat-exchanger rig according to claim 1 and 2, is characterized in that, described wind guide component is positioned at the presumptive area of contiguous described refrigerant outlet, and in horizontal plane, the projection of described wind guide component is positioned at the projection of described the second heat exchanger completely.

4. according to the heat-exchanger rig described in any one in claim 1-3, it is characterized in that, described wind guide component is flat board, corrugated board or arc.

5. heat-exchanger rig according to claim 4, it is characterized in that, the lower end of described wind guide component is connected with the lower end of described the second heat exchanger, between the lower end of the lower end of described First Heat Exchanger and described the second heat exchanger, distance is in the horizontal direction L, the length of described wind guide component is L2, angle between described wind guide component and described the second heat exchanger is γ, wherein:

0<L2/L≤1/3；

0°<γ≤90°-（θ/2）。

6. heat-exchanger rig according to claim 4, it is characterized in that, angle between described wind guide component and horizontal direction is β, between the upper end of described wind guide component and the lower end of described wind guide component, the distance of in the vertical direction is H2, between the lower end of the lower end of described wind guide component and described the second heat exchanger, distance is in the horizontal direction L1, between line between the lower end of the lower end of described First Heat Exchanger and described the second heat exchanger and the lower end of described wind guide component, the distance of in the vertical direction is H1, wherein:

0.2≤（H1+H2）/H<1；

0≤L1/L<0.5；

0°≤β≤90°-θ/2。

7. according to the heat-exchanger rig described in any one in claim 1-3, it is characterized in that, described wind guide component is V shaped slab, described V shaped slab comprises the first plate limb and the second plate limb, the lower end of the lower end of described the first plate limb and the second plate limb is connected with each other, and described the second plate limb is than more close described the second heat exchanger of described the first plate limb.

8. heat-exchanger rig according to claim 7, it is characterized in that, angle between described the first plate limb and described the second plate limb is α, angle between described the first plate limb and horizontal direction is β, between the lower end of the upper end of described the second plate limb and described the second plate limb, the distance of in the vertical direction is H2, between the lower end of the lower end of described the first and second plate limbs and described the second heat exchanger, distance is in the horizontal direction L1, between the lower end of the line between the lower end of the lower end of described First Heat Exchanger and described the second heat exchanger and described the first and second plate limbs, the distance of in the vertical direction is H1, wherein:

0.2≤[H1+H2]/H<1；

0<L1/L<0.5；

0 ° of < alpha+beta≤135 ° and β <90 °.

9. heat-exchanger rig according to claim 8, is characterized in that, described the first plate limb tilts with respect to horizontal direction, and described the second plate limb vertically extends or tilts with respect to horizontal direction.

10. according to the heat-exchanger rig described in any one in claim 5,6 and 8, it is characterized in that, the lower end of described First Heat Exchanger is concordant with the lower end of described the second heat exchanger.

11. according to the heat-exchanger rig described in claim 7 or 8, it is characterized in that, described the first plate limb is arc, and described the second plate limb is dull and stereotyped and vertically extension, and described the first plate limb tilts with respect to horizontal direction and protrudes towards or away from the direction of described the second plate limb; Or described the first plate limb and described the second plate limb are the arc protruding towards described the second heat exchanger or described First Heat Exchanger; Or described the second plate limb is arc, described the first plate limb is made up of the first segmental arc and the second segmental arc, and the protrusion direction of described the first segmental arc and the second segmental arc is contrary.

12. according to the heat-exchanger rig described in claim 7 or 8, it is characterized in that, described the second plate limb is the flat board vertically extending, described the first plate limb comprises the first flat plate section and the second flat plate section, described the second flat plate section is connected with described the second plate limb, described the first flat plate section is towards described the second plate limb bending, and the angle between described the first flat plate section and described the second flat plate section is δ, wherein: 90 °≤δ <180 °.

13. according to the heat-exchanger rig described in claim 7 or 8, it is characterized in that, each in described the first plate limb and described the second plate limb includes the first flat plate section and the second flat plate section, the first flat plate section of described the first plate limb is towards described the second plate limb bending, the first flat plate section of described the second plate limb is towards described the first plate limb bending, and the second flat plate section of described the second plate limb is vertically extended.

14. 1 kinds of heat-exchanger rigs, is characterized in that, comprising:

First Heat Exchanger and the second heat exchanger, the upper end of described First Heat Exchanger is connected with the upper end of described the second heat exchanger, the lower end of the lower end of described First Heat Exchanger and described the second heat exchanger is spaced apart, described First Heat Exchanger becomes predetermined angle theta with the second heat exchanger, wherein θ is greater than 0 degree and is less than 180 degree, the lower end of described First Heat Exchanger is provided with refrigerant inlet, and the lower end of described the second heat exchanger is provided with refrigerant outlet; With

Wind guide component, described wind guide component is between described First Heat Exchanger and described the second heat exchanger, and described wind guide component directs on described the second heat exchanger air quantity in the presumptive area of contiguous described refrigerant outlet and is less than air quantity and the described wind guide component that described wind guide component directs into other region on described the second heat exchanger and directs into the air quantity on described First Heat Exchanger.

15. heat-exchanger rigs according to claim 14, it is characterized in that, described First Heat Exchanger is divided into the first top heat exchanging segment and the first bottom heat exchanging segment, described the second heat exchanger is divided into the second top heat exchanging segment and the second bottom heat exchanging segment, and wherein said wind guide component directs into air quantity F1, described wind guide component on described the first bottom heat exchanging segment and directs into air quantity F2, described wind guide component on described the first top heat exchanging segment and direct into air quantity F3 on described the second top heat exchanging segment and be all greater than described wind guide component and direct into the air quantity F4 on described the second bottom heat exchanging segment.