Evaporator used on refrigeration equipment

Abstract

The utility model relates to the field of refrigeration equipment, in particular to an evaporator used on the refrigeration equipment, which comprises an evaporation pipeline and a plurality of fins, each fin comprises a fixed part and a concave part, the section of each concave part is concave, the two sides of each fin are respectively fixed with an electric heating plate through the fixed parts, and the fins are fixed on the electric heating plate. The evaporation pipeline sequentially penetrates through the sunken parts of the fins, a water collecting tank is further arranged below the evaporation pipeline, a flow guide groove is formed in the top of the water collecting tank, a flow guide hole communicated with the interior of the water collecting tank is formed in the bottom of the flow guide groove, and a plurality of exhaust fans are further fixed to the electric heating plate. The evaporation pipelines penetrate through the concave parts of the fins, so that the contact area between the evaporation pipelines and the fins is increased, and heat in external air can be quickly transferred to the evaporation pipelines through the fins.

Description

[Technical field]

[0001] The utility model relates to the field of refrigeration equipment, in particular to an evaporator used in refrigeration equipment. [Background technology]

[0002] Evaporation is the physical process of converting liquid into gas. Generally speaking, an evaporator is an object that converts liquid substances into gas. There are a large number of evaporators in the industry, and the evaporator used in refrigeration systems is one of them. The evaporator is a very important component among the four major refrigeration components. The low-temperature condensed liquid passes through the evaporator to exchange heat with the outside air, vaporize and absorb heat to achieve the refrigeration effect. The evaporator is mainly composed of two parts: the heating chamber and the evaporation chamber. The heating chamber provides the liquid with the heat required for evaporation, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas and liquid phases.

[0003] At present, during the use of the evaporator, the structure of the evaporator is relatively simple, and heat is exchanged with the external air after the evaporation pipe passes through the fins. For example, patent application No.: 202220913401.6 discloses a refrigeration evaporator, in which a number of heat sinks are inserted through the middle of the outer surface of the evaporation tube to perform evaporation heat exchange. However, the heat exchange efficiency is low because the fins and the evaporation pipe are used for heat exchange only.

[0004] The utility model is proposed in view of the deficiencies in the prior art. [Contents of the utility model]

[0005] The purpose of the utility model is to overcome the disadvantages of the prior art and provide an evaporator used in a refrigeration device.

[0006] The utility model can be realized by the following technical solutions:

[0007] The utility model discloses an evaporator used on a refrigeration device, comprising an evaporation pipeline and a plurality of fins, the fin comprising a fixing portion and a recessed portion, the recessed portion having a concave cross-section, both sides of the fin being fixed to an electric heating plate by the fixing portions respectively, the evaporation pipeline sequentially passes through the recessed portions of each fin, a water collecting box is further arranged below the evaporation pipeline, a guide groove is arranged on the top of the water collecting box, a guide hole connected to the inside of the water collecting box is arranged at the bottom of the guide groove, and a plurality of exhaust fans are also fixed on the electric heating plate. The evaporator pipe passes through the recessed position of the fin to increase the contact area between the evaporator pipe and the fin, so that the heat in the external air can be quickly transferred to the evaporator pipe through the fin, and the cross-section of the recessed portion is concave, so the heat is easily gathered at the recessed position of the fin. The evaporator pipe passes through the recessed position, and the heat is further arranged around the evaporator pipe, so that the liquid in the evaporator pipe absorbs heat uniformly and evaporates quickly. In addition, an exhaust fan is added on the electric heating plate to increase the air flow, which can further take away the cold air at the evaporator pipe position and heat it through the electric heating plate to avoid frost and ice at the fin position, and to avoid residual water droplets or ice crystals on the fins when the evaporator is cooled again, and to avoid the residual water droplets or ice crystals from quickly condensing into nuclei and growing and expanding rapidly, thereby ensuring that the refrigeration efficiency of the evaporator is not affected and reducing the energy consumption of defrosting of the device. A water collecting tank is set under the evaporator pipe, and the condensed water drips into the water collecting tank for collection.

[0008] Preferably, a drain pipe is fixed at the bottom of the water collecting tank, and a valve is arranged on the drain pipe, through which the collected condensed water is discharged.

[0009] Preferably, the exhaust fans are all provided with filter screens to prevent external dust from reaching the fin positions and adhering to the fin positions.

[0010] Compared with the existing technology, the utility model has the following advantages:

[0011] 1. The evaporation pipeline passes through the recessed part of the fin, which increases the contact area between the evaporation pipeline and the fin, so that the heat in the external air can be quickly transferred to the evaporation pipeline through the fin. The cross-section of the recessed part is concave, and the heat is easily gathered at the recessed part of the fin. The evaporation pipeline passes through the recessed part, which further realizes the setting of heat surrounding the evaporation pipeline, and realizes uniform heat absorption and rapid vaporization of the liquid in the evaporation pipeline.

[0012] 2. Add an exhaust fan on the heating plate to increase air flow, which can further remove the cold air from the evaporation pipe.

[0013] 3. Heating by electric heating plate can prevent frost and ice formation at the fin position, prevent water droplets or ice crystals from remaining on the fins when the evaporator is cooled again, and prevent the remaining water droplets or ice crystals from quickly condensing into nuclei and growing and expanding rapidly, ensuring that the refrigeration efficiency of the evaporator is not affected and reducing the energy consumption of defrosting the device.

Brief Description of the Drawings

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 for Figure 2 Sectional view at AA;

[0018] Figure 4 This is a schematic diagram of another embodiment of the present invention;

[0019] In the figure: 1. Evaporation pipeline; 2. Fins; 3. Fixing part; 4. Concave part; 5. Electric heating plate; 6. Exhaust fan; 7. Water collecting box; 8. Diversion groove; 9. Diversion hole; 10. Drain pipe; 11. Valve; 12. Filter screen; [Specific implementation method]

[0020] The following is a detailed description of the implementation of the present invention in conjunction with the accompanying drawings:

[0021] Embodiment 1:

[0022] like Figures 1 to 3As shown, the present embodiment discloses an evaporator used in a refrigeration device, including an evaporation pipeline 1 and a plurality of fins 2, the fin 2 including a fixing portion 3 and a recessed portion 4, the recessed portion 4 having a concave cross-section, the two sides of the fin 2 being fixed to an electric heating plate 5 by means of the fixing portion 3 respectively, the evaporation pipeline 1 passes through the recessed portions 4 of each fin 2 in sequence, a water collecting tank 7 is further provided below the evaporation pipeline 1, a guide groove 8 is provided on the top of the water collecting tank 7, a guide hole 9 communicating with the interior of the water collecting tank 7 is provided at the bottom of the guide groove 8, and a plurality of exhaust fans 6 are further fixed on the electric heating plate 5. The evaporator pipe 1 passes through the recessed portion 4 of the fin 2, and the two sides of the evaporator pipe 1 are in contact with the fin 2 at the recessed portion 4, thereby increasing the contact area between the evaporator pipe 1 and the fin 2, so that the heat in the external air can be quickly transferred to the evaporator pipe 1 through the fin 2, and the cross-section of the recessed portion 4 is concave, so that the heat is easily gathered at the recessed position of the fin 2, and the evaporator pipe 1 passes through the recessed position, so that the heat is further arranged around the evaporator pipe 1, so that the liquid in the evaporator pipe 1 can be uniformly absorbed and quickly vaporized, and an exhaust fan 6 is added to the electric heating plate 5 to increase the air flow, so that the cold air at the position of the evaporator pipe 1 can be further taken away, and heated by the electric heating plate 5, so as to avoid frosting and ice formation at the position of the fin 2, and avoid residual water droplets or ice crystals on the fin 2 when the evaporator is cooled again, and avoid the residual water droplets or ice crystals from quickly condensing into nuclei and growing and expanding rapidly, thereby ensuring that the refrigeration efficiency of the evaporator is not affected and reducing the energy consumption of the device for defrosting, and a water collecting tank 7 is arranged below the evaporator pipe 1, and the condensed water drops into the water collecting tank 7 for collection.

[0023] A drain pipe 10 is fixed at the bottom of the water collecting tank 7, and a valve 11 is arranged on the drain pipe 10. The collected condensed water is discharged through the drain pipe 10.

[0024] Embodiment 2:

[0025] like Figure 4 As shown, this embodiment discloses an evaporator used in a refrigeration device. Based on the structure and principle of embodiment 1, a filter screen 12 is provided on the exhaust fan 6 of this embodiment. The filter screen 12 is provided to prevent external dust from reaching the fin 2 position and adhering to the fin 2 position.

[0026] The above are only preferred implementation modes of the present invention. It should be pointed out that, for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the protection scope of the present invention.

Claims

1. An evaporator used in a refrigeration device, comprising an evaporation pipeline and a plurality of fins, characterized in that: The fin includes a fixing portion and a recessed portion, the cross-section of the recessed portion is concave, and the two sides of the fin are respectively fixed to the electric heating plate by the fixing portions, and the evaporation pipeline passes through the recessed portions of each fin in sequence. A water collecting tank is also provided below the evaporation pipeline, a guide groove is provided on the top of the water collecting tank, and a guide hole connected to the inside of the water collecting tank is provided at the bottom of the guide groove, and a plurality of exhaust fans are also fixed on the electric heating plate.

2. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: A sewage pipe is also fixed at the bottom of the water collecting tank, and a valve is arranged on the sewage pipe.

3. The evaporator used in the refrigeration equipment according to claim 1, characterized in that: The exhaust fans are all provided with filter screens.

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