Fan-shaped parallel flow evaporator

Abstract

The invention discloses a fan-shaped parallel flow evaporator, and provides an evaporator capable of realizing evaporation flow balance of a plurality of fan blade areas and achieving an optimal heat exchange effect. The fan-shaped parallel flow evaporator is composed of a cylinder and three fan blades, each fan blade is internally divided into an upper layer and a lower layer, a plurality of circulation channels are distributed in each layer, and the corresponding channels of the upper layer and the lower layer in each fan blade are communicated at the edges of the fan blades.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration, in particular to a fan-shaped parallel flow evaporator in an evaporator. Background Art

[0002] After the low-temperature and low-pressure refrigerant liquid enters the evaporator, it absorbs heat in the evaporator tube and quickly vaporizes. However, due to the different positions and pressure drops in the evaporator tube, the liquid flow rate in each evaporator tube is different, which affects the heat exchange effect of the heat exchanger and causes energy waste.

[0003] In response to the above problems, a fan-shaped parallel flow evaporator was developed. At present, most parallel flow evaporators are formed by connecting several parallel channels, and the refrigerant manifolds are usually arranged in parallel with round tubes or long flat tubes. This form cannot ensure that the refrigerant flow entering each evaporator tube is the same, and cannot achieve a better heat exchange effect. Summary of the invention

[0004] The main purpose of the present invention is to address some technical defects existing in the prior art and to propose an evaporator that can achieve uniform flow in the evaporator and can rotate under the drive of a fan, thereby increasing the heat exchange area of ​​the outer surface of the evaporator and improving the heat exchange effect.

[0005] The technical solution adopted to achieve the purpose of the present invention is: A fan-shaped parallel flow evaporator comprises a central cylindrical liquid inlet and air outlet, a fan-blade evaporator, a fan-blade inner baffle, and a fan-blade inner flow channel. The central cylindrical liquid inlet and air outlet are located at the center of the fan-shaped parallel flow evaporator, and the liquid inlet and the air outlet are on the same side. There are three fan-blade evaporators, which are evenly arranged on the central cylinder. Each fan-blade evaporator is divided into an upper and lower layer, which are interconnected at the inner edge of the fan blade. The fan-blade inner baffle divides each fan blade into a plurality of flow channels, and each flow channel is interconnected at the upper and lower edges of the fan blade.

[0006] The central cylindrical liquid inlet and air outlet are located in the center of the fan-blade evaporator, and the liquid inlet and air outlet are on the same side and are evenly arranged around the cylinder, and the arrangement is consistent with the arrangement of traditional electric fan blades; the inner baffle of the fan blade divides each fan blade into two layers, each layer is divided into a number of flow channels, and the upper and lower corresponding channels are interconnected at the edge of the fan blade, and the refrigerant can flow from one side to the other side; the flow channels in the fan blade are interconnected up and down at the edge of the fan blade, and the refrigerant in the fan blade channel on the liquid inlet side can flow into the fan blade channel on the other side after heat exchange.

[0007] The central cylindrical liquid inlet and the gas outlet are located in the center, each channel is at the same distance from the center, and the hole size of each liquid inlet is consistent, which can ensure that the flow rate of each channel is consistent and uniform.

[0008] The liquid inlet and the air outlet of the central cylinder are located on one side, and the cylinder and the fan blades are connected by a rotatable coupling. When the evaporator is working, the fan blades can rotate like a fan under the drive of the fan, further increasing the heat exchange effect of the evaporator.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The parallel flow evaporator of the present invention adopts a fan-shaped parallel flow evaporator. The liquid enters the evaporator from the central cylindrical liquid inlet, ensuring that the flow rate of each flow channel is equal. The liquid flows from the upper fan blades to the lower fan blade channels, thereby improving heat exchange efficiency and reducing energy consumption.

[0010] The fan-shaped parallel flow evaporator of the present invention has three fan-blade evaporators evenly arranged on a central cylinder, and the arrangement form is consistent with that of a traditional electric fan. When working, it can be driven to rotate by a fan, which greatly increases the surface heat exchange capacity of the evaporator and increases the heat exchange amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Shown is a schematic diagram of a fan-shaped parallel flow evaporator of the present invention; Figure 2 Shown is a schematic diagram of the central cylinder of the fan-shaped parallel flow evaporator of the present invention; Figure 3 The figure shows a schematic cross-sectional view of a fan blade evaporator of a fan-shaped parallel flow evaporator of the present invention; In the figure: 1. Central cylinder, 2. Fan-blade evaporator, 3. Fan-blade inner baffle, 4. Fan-blade inner flow channel, 5. Central cylinder liquid inlet, 6. Central cylinder gas outlet, 7. Coupling, 8. Refrigerant liquid enters the fan blade, 9. Fan blade refrigerant gas outlet, 10. Fan-blade evaporator upper layer, 11. Fan-blade evaporator lower layer DETAILED DESCRIPTION

[0012] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] The schematic diagram of the fan-shaped parallel flow evaporator introduced in the present invention is shown in Figure 1 , Figure 2As shown, it includes a central cylinder 1, a fan-shaped evaporator 2, a fan-shaped inner baffle 3, a fan-shaped inner circulation channel 4, a central cylinder liquid inlet 5, a central cylinder air outlet 6, a coupling 7, a refrigerant liquid entering the fan blade 8, a fan-shaped refrigerant gas outlet 9, a fan-shaped evaporator upper layer 10, and a fan-shaped evaporator lower layer 11. The central cylinder liquid inlet 5 and the air outlet 6 are located at the center of the fan-shaped parallel flow evaporator, and the liquid inlet 5 and the air outlet 6 are on the same side. There are three fan-shaped evaporators 2, which are evenly arranged on the central cylinder 1. Each fan-shaped evaporator 2 is divided into an upper and lower layer, which are interconnected at the inner edge of the fan blade. The fan-shaped inner baffle 3 divides each fan blade into a plurality of circulation channels 4, and each circulation channel 4 is interconnected at the upper and lower edges of the fan blade.

[0014] In this example, the central cylindrical liquid inlet 5 and the air outlet 6 are located in the center of the fan-shaped parallel flow evaporator, the liquid inlet 5 and the air outlet 6 are on the same side, and the fan-blade evaporator 2 is evenly arranged around the cylinder, and the arrangement is consistent with the arrangement of the blades of a traditional electric fan; the inner baffle 3 of the fan blade divides each fan blade into two layers, each layer is divided into a number of flow channels 4, and the upper and lower corresponding channels are interconnected at the edge of the fan blade, and the refrigerant can flow from one side 10 to the other side 11; the inner flow channel 4 of the fan blade is interconnected up and down at the edge of the fan blade, and the refrigerant in the fan blade channel on the liquid inlet side can flow into the fan blade channel on the other side after heat exchange.

[0015] The central cylindrical liquid inlet 5 and the air outlet 6 are located on one side, and the cylinder and the fan blades are connected by a rotatable coupling 7. When the evaporator is working, the fan-shaped parallel flow evaporator can rotate like a fan under the drive of the fan, further increasing the heat exchange effect of the evaporator.

[0016] The above is a preferred embodiment of the present invention. It should be pointed out that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fan-shaped parallel flow evaporator, characterized in that: It includes a central cylindrical liquid inlet and air outlet, a fan-blade evaporator, a fan-blade inner baffle, and a fan-blade inner flow channel. The central cylindrical liquid inlet and air outlet are located at the center of the fan-shaped parallel flow evaporator, and the liquid inlet and air outlet are on the same side. There are three fan-blade evaporators, which are evenly arranged on the central cylinder. Each fan-blade evaporator is divided into an upper and lower layer, which are interconnected at the inner edge of the fan blade. The fan-blade inner baffle divides each fan blade into a number of flow channels, and each flow channel is interconnected at the upper and lower edges of the fan blade.

2. The fan-shaped parallel flow evaporator according to claim 1, characterized in that: The liquid inlet and the air outlet are on the same side of the cylinder, and the fan-blade evaporator is divided into three and evenly arranged around the cylinder, and the arrangement is consistent with the arrangement of traditional electric fan blades; the inner baffle of the fan blade divides each fan blade into two layers, each layer is divided into a number of flow channels, and the upper and lower corresponding channels are interconnected at the edge of the fan blade, and the refrigerant can flow from one side to the other side; the flow channels in the fan blade are interconnected up and down at the edge of the fan blade, and the refrigerant in the fan blade channel on the liquid inlet side can flow into the fan blade channel of another layer after heat exchange.

3. The fan-shaped parallel flow evaporator according to claim 1, characterized in that: The central cylindrical liquid inlet and the gas outlet are located in the center, each channel is at the same distance from the center, and the hole size of each liquid inlet is consistent, which can ensure the flow of each channel is consistent and increase uniformity.

4. The fan-shaped parallel flow evaporator according to claim 1, characterized in that: The liquid inlet and the air outlet of the central cylinder are located on one side of the cylinder. The cylinder and the fan blades are connected by a rotatable coupling. When the evaporator is working, the fan blades can rotate like a fan under the drive of the fan, further increasing the heat exchange effect of the evaporator.

Images