A finned evaporator

Abstract

The utility model discloses a fin type evaporator relates to evaporator technical field, including the casing, be provided with a plurality of coil pipes in the casing, the coil pipe includes straight pipe section and elbow section, the straight pipe section of coil pipe is sleeved with a plurality of fin components, the fin component includes the connecting pipe of sleeve setting on the outer circumferential wall of coil pipe, the outer circumferential wall of connecting pipe is fixedly connected with a plurality of fins, the fin is the sheet -shaped piece of wave -shaped along the axial line direction of connecting pipe, is equipped with a plurality of heat exchange holes on the fin, the both sides opening of casing along the width direction, the both sides of casing along the width direction all are fixedly connected with the dust screen, the coil pipe is the continuous'S'shape pipe body, a plurality of coil pipes are linearly even arranged along the width direction of casing, and the input port of a plurality of coil pipes all is commonly connected with the liquid inlet pipe after penetrating the casing, and the output port of a plurality of coil pipes all is commonly connected with the liquid outlet pipe after penetrating the casing, and the device improves the characteristic of evaporator heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically a finned evaporator. Background Technology

[0002] The evaporator is a very important component among the four major refrigeration components. Low-temperature condensed liquid passes through the evaporator and exchanges heat with the outside air, vaporizing and absorbing heat to achieve the cooling effect.

[0003] A finned evaporator with publication number CN221924163U includes an evaporator coil and a fin assembly. The evaporator coil includes four groups of horizontally spaced twisted tubes. Each group of twisted tubes includes three vertically spaced heat dissipation sections. The fin assembly includes several fins fitted onto the evaporator coil. The fins include heater slots on both sides of the fins and heater mounting holes vertically distributed in the middle of the fins. Each heat dissipation section includes a first heat dissipation branch pipe and a second heat dissipation branch pipe arranged in parallel. The first heat dissipation branch pipe is located above the second heat dissipation branch pipe, and the two are arranged at an angle.

[0004] However, the contact area between the fins and the coil of this device is small, and the arrangement of the fins results in low airflow resistance and low heat exchange efficiency. Therefore, it is necessary to design a finned evaporator to improve heat exchange efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a finned evaporator to address the shortcomings of existing technologies and solve the problems mentioned in the background section.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a finned evaporator, including a shell, in which multiple coils are arranged, each coil including a straight section and a bent section, and a number of fin assemblies are sleeved on the straight section of the coil. Each fin assembly includes a connecting pipe sleeved on the outer circumferential wall of the coil, and a number of fins are fixedly connected to the outer circumferential wall of the connecting pipe. The fins are wavy sheet-like pieces along the axis of the connecting pipe, and a number of heat exchange holes are opened on the fins.

[0007] The present invention further describes that the shell has openings on both sides along the width direction, and dustproof nets are fixedly connected to both sides of the shell along the width direction.

[0008] The present invention further explains that the coil is a continuous "S"-shaped tube, and multiple coils are arranged linearly and uniformly along the width direction of the shell.

[0009] This utility model further illustrates that the inlet ports of the multiple coils are all connected to a common liquid inlet pipe after penetrating the housing, and the outlet ports of the multiple coils are all connected to a common liquid outlet pipe after penetrating the housing.

[0010] The present invention further explains that the inner walls of both sides of the shell along the height direction are provided with a groove corresponding to the coil, and the two ends of the coil along the length of the straight pipe section are located in the groove.

[0011] The present invention further describes that the connecting tube is a hollow cylindrical tube, and several fins are evenly distributed in a circle around the axis of the connecting tube, with the length direction of the fins being the same as the length direction of the connecting tube.

[0012] The present invention further explains that the fins of the adjacent fin assemblies on two adjacent coils are arranged to cross each other, and the fins close to the inner walls of the shell along the width direction are spaced 2mm apart from the inner walls of the shell.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model uses wavy fins and heat exchange holes on the fins to increase the heat exchange area with the air and improve the heat exchange efficiency.

[0014] By setting up finned assemblies and using a special arrangement, the resistance to airflow is increased to a certain extent, thereby increasing the heat exchange time of air in the evaporator and improving the cooling effect of the air. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model (the fin assembly is not fully shown).

[0018] Figure 3 This is a schematic diagram of the fin assembly structure of this utility model;

[0019] In the diagram: 1. Shell; 2. Coil; 3. Inlet pipe; 4. Outlet pipe; 5. Straight pipe section; 6. Bend pipe section; 7. Groove 1; 8. Fin assembly; 9. Connecting pipe; 10. Fin; 11. Heat exchange hole; 12. Dustproof screen. Detailed Implementation

[0020] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-3 The present invention provides a technical solution: a finned evaporator, comprising a shell 1, with openings on both sides along the width direction for air inflow and outflow.

[0022] Multiple coils 2 are provided inside the shell 1. The coils 2 are continuous “S” shaped tubes and are vertically arranged. The multiple coils 2 are linearly and evenly arranged along the width direction of the shell 1.

[0023] The inlet ports of multiple coils 2 pass through the housing 1 and are all connected to the liquid inlet pipe 3. The outlet ports of multiple coils 2 pass through the housing 1 and are all connected to the liquid outlet pipe 4. Coolant flows inside the coils 2. After the liquid coolant enters the coils 2 through the liquid inlet pipe 3, it absorbs heat from the air inside the housing 1 and vaporizes. Finally, it flows out of the coils 2 through the liquid outlet pipe 4, thereby cooling the air inside the housing 1.

[0024] The coil 2 includes a straight pipe section 5 and a bent pipe section 6. The inner walls of both sides of the shell 1 along the height direction are provided with grooves 7 corresponding to the coil 2. The two ends of the coil 2 along the length direction of the straight pipe section 5 are located in the grooves 7, and the coil 2 is limited and fixed by the grooves 7.

[0025] Several finned assemblies 8 are fitted on the straight pipe section 5 of the coil 2. The finned assemblies 8 are evenly distributed on the outside of the coil 2 along the pipe path of the straight pipe section 5 of the coil 2. Two adjacent finned assemblies 8 on the same straight pipe section 5 are in direct contact.

[0026] The fin assembly 8 includes a connecting pipe 9 sleeved on the outer circumferential wall of the coil 2. The connecting pipe 9 is a hollow cylindrical tube, and the inner wall of the connecting pipe 9 is welded to the outer wall of the coil 2.

[0027] Several fins 10 are fixedly connected to the outer circumferential wall of the connecting pipe 9. The fins 10 are evenly distributed in a circle with the axis of the connecting pipe 9 as the center.

[0028] The length direction of the fin 10 is the same as that of the connecting pipe 9. The fin 10 is a wavy plate along the axis of the connecting pipe 9. The purpose of the wavy shape is to increase the surface area of ​​the fin 10 within a given length, thereby improving the heat exchange efficiency of the fin 10 per unit time.

[0029] The fins 10 are provided with a number of heat exchange holes 11. The shape of the heat exchange holes 11 is not limited to circles, triangles, rectangles, etc. The heat exchange holes 11 increase the surface area of ​​the fins 10 and increase the air circulation space inside the evaporator, which facilitates the air circulation inside the evaporator and thus improves the heat exchange efficiency of the fins 10.

[0030] The fin assemblies 8 on two adjacent coils 2 have their adjacent fins 10 arranged in a cross pattern, which requires the air to change its flow path as it passes through, thus increasing the heat exchange time of the air in the evaporator.

[0031] The fins 10 near the inner walls of the shell 1 along the width direction are spaced 2mm apart from the inner wall of the shell 1, thereby increasing the air flow resistance in the evaporator and increasing the heat exchange time of the air in the evaporator.

[0032] Dustproof nets 12 are fixedly connected to both sides of the housing 1 along the width direction to prevent dust in the air from entering the evaporator and adhering to the fins 10, thereby reducing the heat exchange efficiency of the fin assembly 8 to the air.

[0033] In this embodiment, air enters the housing 1 through the dustproof net 12 and comes into contact with the fins 10 on the fin assembly 8. The coolant in the coil 2 exchanges heat with the air through the fin assembly 8. The coolant absorbs heat and changes from a liquid state to a gaseous state. The gaseous coolant is discharged through the liquid outlet pipe 4. The air is cooled and discharged through another opening in the housing 1.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A finned evaporator, characterized in that: The device includes a housing (1), which contains a plurality of coils (2). Each coil (2) includes a straight section (5) and a bent section (6). Several fin assemblies (8) are fitted on the straight section (5) of the coil (2). Each fin assembly (8) includes a connecting pipe (9) fitted on the outer circumferential wall of the coil (2). Several fins (10) are fixedly connected to the outer circumferential wall of the connecting pipe (9). Each fin (10) is a wavy sheet along the axis of the connecting pipe (9). Several heat exchange holes (11) are opened on the fins (10).

2. The finned evaporator according to claim 1, characterized in that: The housing (1) has openings on both sides along the width direction, and dustproof nets (12) are fixedly connected to both sides of the housing (1) along the width direction.

3. A finned evaporator according to claim 2, characterized in that: The coil (2) is a continuous "S"-shaped tube, and multiple coils (2) are arranged linearly and uniformly along the width direction of the shell (1).

4. A finned evaporator according to claim 3, characterized in that: The inlet ports of the multiple coils (2) are connected to the liquid inlet pipe (3) after passing through the housing (1), and the outlet ports of the multiple coils (2) are connected to the liquid outlet pipe (4) after passing through the housing (1).

5. A finned evaporator according to claim 4, characterized in that: The inner walls of the shell (1) along the height direction are provided with grooves (7) corresponding to the coil (2), and the two sections of the coil (2) along the length of the straight pipe section (5) are located in the grooves (7).

6. A finned evaporator according to claim 1, characterized in that: The connecting tube (9) is a hollow cylindrical tube, and several fins (10) are evenly distributed around the axis of the connecting tube (9). The length direction of the fins (10) is the same as the length direction of the connecting tube (9).

7. A finned evaporator according to claim 1, characterized in that: The fins (10) of the adjacent fin assemblies (8) on the two adjacent coils (2) are arranged to cross each other, and the fins (10) close to the inner wall of the shell (1) along the width direction are spaced 2 mm apart from the inner wall of the shell (1).

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