On-demand distribution V-shaped evaporator

Abstract

The utility model discloses an on-demand distribution V-shaped evaporator which comprises an inverted V-shaped main frame body, a plurality of heat exchange main bodies extending in the inclined direction are fixed to the left side and the right side of the main frame body, and the end portions of liquid inlet pipes and the end portions of liquid outlet pipes of all the heat exchange main bodies stretch out of the top face of an upper connecting plate of the main frame body. Two distributor main bodies are arranged above an upper connecting plate of the main frame body; and a shunting ring body is fixed in the end part of the liquid inlet pipe. The two distributor main bodies are adopted for installation, so that the outer diameter of a single distributor is greatly reduced, the occupied space is reduced, the width of an upper protective cover on the main frame body can be reduced, and the occupied external space is reduced; and the size of the circulating through holes in the shunting ring bodies fixed in the end parts of the liquid inlet pipes is designed according to the refrigerant circulating quantity required by the corresponding heat exchange main bodies, so that the uniform heat exchange effect of all the heat exchange main bodies is ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of heat exchanger related equipment, and more specifically to an on-demand distribution V-shaped evaporator. Background technology:

[0002] In the existing refrigeration system, the heat exchanger is an important heat exchange component, such as the evaporator;

[0003] Existing evaporators generally have conventional fin-tube heat exchangers consisting of fins wound on heat exchange tubes;

[0004] Some evaporators are designed into a V-shaped structure according to needs. For the V-shaped evaporator, it generally has oblique heat exchange bodies on the left and right sides. When the length of this evaporator is long, in order to ensure the overall uniform heat exchange, it is necessary to install multiple heat exchange bodies arranged side by side on both sides. At this time, the total liquid inlet volume needs to be diverted, and a distributor needs to be designed. The existing method is to set a distributor body no matter how long the evaporator is, and it needs to connect multiple capillaries for connection. When there are more capillaries to be connected, it increases the volume of the distributor, especially the conical distributor, whose outer diameter will be very large, affecting the shape of the entire V-shaped evaporator. The general distributor is installed at the upper part of the V-shaped evaporator. At this time, it is necessary to increase the width of the upper space of the V-shaped evaporator, which not only increases the cost, but also the width of the upper space is too large, which also increases the volume of the upper part of the entire evaporator and increases the space occupancy.

[0005] At the same time, since the distance between each heat exchange body and the distributor body is different, the amount of refrigerator flowing out of the distributor body to the corresponding heat exchange body is not uniform, which affects the uniform heat exchange effect. Utility model content:

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a V-shaped evaporator that distributes on demand. It uses two distributor bodies for installation, so that the outer diameter of a single distributor is greatly reduced, reducing space occupancy and reducing external space occupancy. Moreover, the flow through hole in the internal fixed diverter ring body at the end of the liquid inlet pipe is designed in size according to the refrigerant flow rate required by the corresponding heat exchange body, thereby ensuring a uniform heat exchange effect for all heat exchange bodies.

[0007] The solution of the utility model to solve the technical problem is:

[0008] A V-shaped evaporator for on-demand distribution, comprising an inverted V-shaped main frame, a plurality of heat exchange bodies extending obliquely are fixed on the left and right sides of the main frame, and the liquid inlet pipe ends and liquid outlet pipe ends of all the heat exchange bodies extend out of the top surface of the upper connecting plate of the main frame;

[0009] Two distributor bodies are arranged above the upper connecting plate of the main frame, a diverter ring body is fixed inside the end of the liquid inlet pipe, a flow through hole is formed in the middle of the diverter ring body, one end of the capillary is fixed on the corresponding diverter ring body and communicates with its flow through hole, and the other end of the capillary is connected to the diverter hole of the corresponding distributor body.

[0010] A bending support frame is fixed on the middle top surface of the upper connecting plate of the main frame, and two distributor bodies are fixed on the top surface of the horizontal plate of the bending support frame. The bending support frame can ensure the fixation of the distributor body.

[0011] An upper protective cover shell with a U-shaped cross-section is fixed on the upper connecting plate of the main frame, and two distributor bodies are located in the upper protective cover shell. The corresponding ends of the capillaries connected at the ends of the liquid inlet pipes of all the heat exchange bodies on the left side are connected to the corresponding diversion holes of the corresponding distributor bodies, and the corresponding ends of the capillaries connected at the ends of the liquid inlet pipes of all the heat exchange bodies on the right side are connected to the corresponding diversion holes of the other distributor body.

[0012] The ends of the liquid outlet pipes of all the heat exchange bodies are connected to the same collecting pipe, which is located above the upper connecting plate of the main frame and in an upper protective cover fixed on the upper connecting plate of the main frame, and the discharge end of the collecting pipe extends out of the upper protective cover. The upper protective cover can protect the components at the upper part of the main frame.

[0013] The outstanding effects of the utility model are:

[0014] Compared with the prior art, it uses two distributor bodies for installation, so that the outer diameter of a single distributor body is greatly reduced, reducing the space occupied, so that the width of the upper protective cover shell on the main frame can be reduced, reducing the external space occupied;

[0015] Secondly, the flow through hole in the internally fixed flow dividing ring at the end of the liquid inlet pipe is designed in size according to the refrigerant flow required by the corresponding heat exchange body, so as to ensure uniform heat exchange effect of all heat exchange bodies. Description of the drawings:

[0016] Figure 1 It is a partial three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial bottom view of the utility model;

[0019] Figure 4 It is a partial top view of the utility model without the upper protective cover (the capillary is omitted and not shown);

[0020] Figure 5 yes Figure 4 A partial enlarged view of

[0021] Figure 6 It is a partial side view schematic diagram of the utility model (the capillary is omitted and not shown);

[0022] Figure 7 It is a schematic diagram of the local structure between the capillary tube and the flow dividing ring body of the utility model. Specific implementation method:

[0023] For example, see Figures 1 to 7 As shown, a V-shaped evaporator for on-demand distribution includes an inverted V-shaped main frame 10, and a plurality of obliquely extending heat exchange bodies 20 are fixed on the left and right sides of the main frame 10; the main frame 10 includes upper connecting plates 11 on both sides of the left and right sides that are obliquely bent upward and outward, the upper parts of all the heat exchange bodies 20 on the left are fixed to the bottom surface of the left plate body of the upper connecting plate 11, the upper parts of all the heat exchange bodies 20 on the right are fixed to the bottom surface of the right plate body of the upper connecting plate 11, the bottoms of all the heat exchange bodies 20 on the same side are fixed to the same bottom connecting plate, and the triangular end plates are fixed to the ends of the upper connecting plate 11 and the ends of the corresponding bottom connecting plates;

[0024] The heat exchange body 20 is composed of a heat exchange coil and a plurality of heat dissipation fins fixed thereon, which is a conventional structure and will not be described in detail here.

[0025] In this embodiment, the liquid inlet pipe end 21 and the liquid outlet pipe end 22 of all heat exchange bodies 20 extend out of the top surface of the upper connecting plate 11 of the main frame 10;

[0026] Two distributor bodies 30 are provided above the upper connecting plate 11 of the main frame 10, a diverter ring body 40 is fixed inside the end 21 of the liquid inlet pipe, a flow through hole 41 is formed in the middle of the diverter ring body 40, one end of the capillary 1 is fixed on the corresponding diverter ring body 40 and communicates with its flow through hole 41, and the other end of the capillary 1 is connected to the diverter hole 31 of the corresponding distributor body 30.

[0027] Furthermore, a bending support frame 12 is fixed to the middle top surface of the upper connecting plate 11 of the main frame body 10 , and two dispenser bodies 30 are fixed to the top surface of the horizontal plate of the bending support frame 12 .

[0028] An upper protective cover shell 13 with a U-shaped cross-section is fixed to the upper connecting plate 11 of the main frame 10, and two distributor bodies 30 are located in the upper protective cover shell 13. The corresponding ends of the capillaries 1 connected at the liquid inlet pipe ends 21 of all the heat exchange bodies 20 on the left are connected to the corresponding diversion holes 31 of the corresponding distributor bodies 30, and the corresponding ends of the capillaries 1 connected at the liquid inlet pipe ends 21 of all the heat exchange bodies 20 on the right are connected to the corresponding diversion holes 31 of the other distributor bodies 30.

[0029] By adopting this structure, the outer diameter of the distributor body 30 used can be reduced, that is, the volume can be reduced, reducing the space occupied and facilitating installation. The width of the upper protective cover shell 13 can be reduced to reduce the external space occupied. Moreover, the capillaries 1 of all the heat exchange bodies 20 in each row are connected to one distributor body 30, which is convenient for management and maintenance.

[0030] Furthermore, the inner hole of the liquid inlet pipe end 21 is a stepped hole, the upper part of which is a large diameter hole section and the lower part is a small diameter hole section, a tapered transition hole section is formed between the large diameter hole section and the small diameter hole section, the upper inner side wall of the large diameter hole section is formed with an upper tapered hole section extending obliquely upward and outward, the diverter ring body 40 is inserted into the small diameter hole section in the inner hole of the liquid inlet pipe end 21, and a tapered protrusion 42 is formed on the top outer side wall of the diverter ring body 40, the tapered outer side wall of the tapered protrusion 42 is pressed against the tapered inner side wall of the tapered transition hole section, and the two cooperate with each other, thereby ensuring a close fit between the two.

[0031] The capillary 1 has an expanded hole end 2 formed at the bottom, which is inserted into the large diameter hole section and the upper tapered hole section. The outer wall of the expanded hole end 2 and the inner wall of the large diameter hole section and the upper tapered hole section are filled with flux and solder to achieve welding and fixing. The bottom end of the expanded hole end 2 is pressed against the top surface of the diverter ring body 40 and communicates with the flow through hole 41 of the diverter ring body 40.

[0032] The middle part of all the flow splitting ring bodies 40 is provided with a flow hole 41 set according to the refrigerant flow rate. That is, since the distance between each heat exchange body 20 and the corresponding distributor body 30 is different, the flow rate of the refrigerant flowing out of the capillary tube 1 to the corresponding heat exchange body 20 is also different. The corresponding flow splitting ring body 40 is installed in the end 21 of the liquid inlet pipe according to actual needs. For example, the inner diameter of the flow hole 41 of the flow splitting ring body 40 at the heat exchange body 20 farthest from the distributor body 30 is the largest, and the inner diameter of the flow splitting ring body 40 at the heat exchange body 20 closest to the distributor body 30 is the smallest, so as to ensure the uniformity of the refrigerant flow, thereby ensuring the uniformity of the heat exchange, so that the effect is good.

[0033] Furthermore, the liquid inlet end of the main liquid inlet pipe 32 connected to the total liquid inlet of the two distributor bodies 30 extends out of the outer side wall of the side plate of the upper protective cover shell 13.

[0034] Furthermore, the liquid outlet pipe ends 22 of all the heat exchange bodies 20 are connected to the same collecting pipe 50, which is located above the upper connecting plate 11 of the main frame 10 and in an upper protective cover shell 13 fixed on the upper connecting plate 11 of the main frame 10, and the discharge end of the collecting pipe 50 extends out of the upper protective cover shell 13.

[0035] The upper protective cover shell 13 protects the components above the main frame 10, and has a good protective effect.

[0036] This embodiment uses two distributor bodies 30 for installation, so that the outer diameter of a single distributor body 30 is greatly reduced, reducing the space occupied, so that the width of the upper protective cover shell 13 on the main frame 10 can be reduced, reducing the external space occupied.

[0037] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A V-shaped evaporator for on-demand distribution, comprising an inverted V-shaped main frame (10), characterized in that: A plurality of obliquely extending heat exchange bodies (20) are fixed on the left and right sides of the main frame (10), and the liquid inlet pipe ends (21) and liquid outlet pipe ends (22) of all the heat exchange bodies (20) extend out of the top surface of the upper connecting plate (11) of the main frame (10); Two distributor bodies (30) are arranged above the upper connecting plate (11) of the main frame (10), a flow dividing ring body (40) is fixed inside the end portion (21) of the liquid inlet pipe, a flow through hole (41) is formed in the middle of the flow dividing ring body (40), one end of the capillary tube (1) is fixed on the corresponding flow dividing ring body (40) and communicates with its flow through hole (41), and the other end of the capillary tube (1) is connected to the flow dividing hole (31) of the corresponding distributor body (30).

2. The V-shaped evaporator according to claim 1 is characterized in that: A bending support frame (12) is fixed to the middle top surface of the upper connecting plate (11) of the main frame body (10), and two distributor bodies (30) are fixed to the top surface of the horizontal plate of the bending support frame (12).

3. The V-shaped evaporator according to claim 2 is characterized in that: An upper protective cover shell (13) having a U-shaped cross section is fixed on the upper connecting plate (11) of the main frame (10), and two distributor bodies (30) are located in the upper protective cover shell (13). The corresponding ends of the capillaries (1) connected at the liquid inlet pipe ends (21) of all the heat exchange bodies (20) on the left side are connected to the corresponding flow diversion holes (31) of the corresponding distributor bodies (30), and the corresponding ends of the capillaries (1) connected at the liquid inlet pipe ends (21) of all the heat exchange bodies (20) on the right side are connected to the corresponding flow diversion holes (31) of the other distributor bodies (30).

4. The V-shaped evaporator according to claim 1, characterized in that: The inner hole of the liquid inlet pipe end (21) is a stepped hole, the upper part of which is a large diameter hole section and the lower part is a small diameter hole section, a tapered transition hole section is formed between the large diameter hole section and the small diameter hole section, the upper inner side wall of the large diameter hole section is formed with an upper tapered hole section extending obliquely upward and outward, the diverter ring body (40) is inserted into the small diameter hole section in the inner hole of the liquid inlet pipe end (21), a tapered protrusion (42) is formed on the top outer side wall of the diverter ring body (40), the tapered outer side wall of the tapered protrusion (42) is pressed against the tapered inner side wall of the tapered transition hole section, and the two are matched.

5. The V-shaped evaporator according to claim 4 is characterized in that: The bottom of the capillary tube (1) is formed with a flared end (2), which is inserted into the large diameter hole section and the upper conical hole section, the outer wall of the flared end (2) is welded and fixed to the inner wall of the large diameter hole section and the upper conical hole section, and the bottom end of the flared end (2) is pressed against the top surface of the diverter ring body (40) and communicates with the flow through hole (41) of the diverter ring body (40).

6. The V-shaped evaporator according to claim 1, characterized in that: A circulation through hole (41) is provided in the middle of all the flow dividing ring bodies (40) according to the refrigerant circulation amount required.

7. The V-shaped evaporator according to claim 1 is characterized in that: The liquid inlet end of the main liquid inlet pipe (32) connected to the total liquid inlet of the two distributor bodies (30) extends out of the outer side wall of the side plate of the upper protective cover shell (13).

8. The V-shaped evaporator according to claim 1, characterized in that: The liquid outlet pipe ends (22) of all the heat exchange bodies (20) are connected to the same liquid collecting pipe (50), which is located above the upper connecting plate (11) of the main frame (10) and in an upper protective cover shell (13) fixed on the upper connecting plate (11) of the main frame (10), and the discharge end of the liquid collecting pipe (50) extends out of the upper protective cover shell (13).

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