CN221825649U - Evaporator for hot gas defrosting - Google Patents

Abstract

The utility model belongs to the technical field of evaporators, and particularly relates to an evaporator for hot gas defrosting. The evaporator comprises an evaporator body, wherein the evaporator body comprises an evaporator coil, an evaporator inlet pipe, an air return pipe, a liquid collecting pipe, a liquid supply pipe and a defrosting pipe. The defrosting pipe comprises a defrosting pipe inlet pipe, a defrosting pipe coil pipe and a defrosting pipe outlet pipe; the junction that defrosting pipe advances pipe and defrosting pipe coil pipe sets up in the lower extreme of the evaporator body right side, and defrosting pipe coil pipe and defrosting pipe exit tube's junction is located the left lower extreme of evaporator body, and defrosting pipe coil pipe sets up in the interior bottom of evaporator body, and defrosting pipe exit tube upwards connects the evaporator and advances the pipe in the evaporator body outside, and defrosting pipe advances the union coupling solenoid valve, and then connects the compressor. According to the utility model, the defrosting pipe is arranged on the evaporator, and particularly, when the defrosting pipe coil is arranged at the inner bottom of the evaporator body, the temperature of defrosting water can be increased during defrosting, the defrosting water is ensured not to be frozen before being discharged, and the defrosting efficiency of the evaporator is further improved.

Description

Evaporator for hot gas defrosting

Technical Field

The utility model belongs to the technical field of evaporators, and particularly relates to an evaporator for hot gas defrosting.

Background

The evaporator frosts in the refrigeration process, and a heating pipe is required to be heated for defrosting or hot air defrosting is required in the defrosting process. When the evaporator is defrosted, the evaporator which uses the heating pipe to defrost is high in surface temperature, and especially when the evaporator is arranged at a higher position, the heating pipe can continuously heat the flowing water, so that the energy consumption is increased. In the prior art, the water temperature for defrosting by using hot gas is generally lower, and the hot gas is easy to freeze to form accumulation after being cooled, so that the efficiency of the evaporator is affected.

Disclosure of utility model

The utility model aims to provide an evaporator for hot gas defrosting, which aims to solve at least one problem in the background technology. The technical scheme adopted is as follows:

The evaporator for hot gas defrosting comprises an evaporator body, wherein an evaporator coil, an evaporator inlet pipe, an air return pipe, a liquid collecting pipe and a liquid supply pipe are arranged on the evaporator body, and a defrosting pipe is arranged on the evaporator body at the bottom of the evaporator coil.

Preferably, the defrosting pipe comprises a defrosting pipe inlet pipe, a defrosting pipe coil pipe and a defrosting pipe outlet pipe; the defrosting pipe is arranged at the lower end of the right side of the evaporator body, the defrosting pipe coil is connected with the defrosting pipe inlet pipe, the defrosting pipe coil is arranged inside the evaporator body, the defrosting pipe outlet pipe is connected with the defrosting pipe coil, the connection part is positioned at the lower end of the left side of the evaporator body, and the defrosting pipe outlet pipe is upwards connected with the evaporator inlet pipe outside the evaporator body.

Preferably, the defrosting pipe inlet pipe is connected with an electromagnetic valve and then connected with the compressor.

Preferably, the defrosting pipe coil is coiled at the inner bottom of the evaporator body from one side to the other side of the evaporator in a U-shaped structure, and the defrosting pipe coil is required to be arranged according to the area of the bottom of the evaporator body and the actual requirement.

Preferably, the liquid supply pipe is connected with the evaporator inlet pipe; the defrosting pipe outlet pipe and the liquid supply pipe are connected to the evaporator inlet pipe through a three-way connector. A Y-tee connector may be used.

Preferably, the three-way connector is arranged on the upper side of the evaporator liquid collecting pipe, namely, on the upper side of one side of the evaporator.

Compared with the prior art, the utility model has the following advantages:

According to the utility model, the defrosting pipe is arranged on the evaporator, and particularly, when the defrosting pipe coil is arranged at the inner bottom of the evaporator body, the temperature of defrosting water can be increased during defrosting, and the defrosting water is ensured not to freeze before being discharged. And the defrosting water is easier to drain due to high temperature, so that the defrosting efficiency of the evaporator is improved, and the energy consumption is further saved.

Drawings

FIG. 1 is a block diagram of an evaporator of the present utility model;

FIG. 2 is a side view of an evaporator and a cycle chart of refrigerant in the tubes when the evaporator is refrigerating in accordance with the present utility model;

Fig. 3 is a side view of the evaporator of the utility model and a cycle of refrigerant in the tubes during defrosting of the evaporator.

In the figure, 1-evaporator body; 2-evaporator inlet pipe; 3-evaporator coil; 4-a liquid collecting pipe; 5-defrosting pipes, 51-defrosting pipe inlet pipes, 52-defrosting pipe coils and 53-defrosting pipe outlet pipes; 6-an air return pipe; 7-a liquid supply pipe; an 8-Y type three-way connector.

Detailed Description

The drawings are for illustrative purposes only; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "side", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and some well-known structures in the drawings and descriptions thereof may be omitted, and thus should not be construed as limiting the present utility model.

Example 1

The evaporator for hot gas defrosting comprises an evaporator body 1, wherein an evaporator coil 3, an evaporator inlet pipe 2, an air return pipe 6, a liquid collecting pipe 4 and a liquid supply pipe 7 are arranged on the evaporator body 1, and a defrosting pipe 5 is arranged on the evaporator body 1 at the bottom of the evaporator coil 3. One end of the defrosting pipe 5 is connected with the evaporator inlet pipe 2, the other end is connected with the electromagnetic valve, and then is connected with the compressor, the electromagnetic valve is opened during defrosting, the refrigerant in the defrosting pipe enters the evaporator inlet pipe and circulates in the evaporator coil 3, and flows out of the evaporator body 1 through the liquid collecting pipe 4 and the air return pipe 6 to heat the evaporator to defrost.

Example 2

As shown in fig. 1, an evaporator for hot gas defrosting comprises an evaporator body 1, wherein an evaporator coil 3, an evaporator inlet pipe 2, an air return pipe 6, a liquid collecting pipe 4 and a liquid supply pipe 7 are arranged on the evaporator body 1, and a defrosting pipe 5 is arranged on the evaporator body 1 at the bottom of the evaporator coil 3.

As shown in fig. 2, the defrosting pipe 5 includes a defrosting pipe inlet pipe 51, a defrosting pipe coil 52, and a defrosting pipe outlet pipe 53; the defrosting pipe inlet pipe 61 is arranged at the lower right end of the evaporator body 1, the lower right end of the evaporator body 1 is connected with the defrosting pipe coil 52, the defrosting pipe coil 52 is arranged inside the evaporator body 1, and the defrosting pipe coil is coiled at the inner bottom of the evaporator body in a U-shaped structure from one side to the other side of the evaporator. The defrosting pipe outlet pipe is connected with the defrosting pipe coil pipe, the connecting part is positioned at the lower end of the left side of the evaporator body 1, the defrosting pipe inlet pipe 51 and the defrosting pipe outlet pipe 53 are arranged on the same side of the evaporator body 1, and the defrosting pipe coil pipe 52 can be provided with coiled U-shaped numbers according to requirements. The defrosting pipe inlet pipe 51 is connected to a solenoid valve downward and then to a compressor (not shown in the drawing, using the prior art). The defrosting pipe outlet pipe 53 is connected with the evaporator inlet pipe 2 upwards at the outer side of the evaporator body.

The liquid supply pipe 7 is also connected with the evaporator inlet pipe 2; the defrosting pipe outlet pipe 53 and the liquid supply pipe 7 are connected to the evaporator inlet pipe 2 through a three-way connector, and a Y-shaped three-way connector 8 is used. The Y-shaped three-way connector 8 is arranged on the upper side of the evaporator liquid collecting pipe 4, namely, on the upper position of one side of the evaporator.

As shown in fig. 2, arrows in the respective tubes represent a circulation route of the refrigerant when the evaporator is refrigerating. During refrigeration, the refrigerant enters the evaporator inlet pipe 2 from the liquid supply pipe 7 through the Y-shaped three-way connector 8, circulates in the evaporator coil 3, and flows out of the evaporator body 1 through the liquid collecting pipe 4 and the air return pipe 6 to realize refrigeration. The defrosting pipe 5 is a stationary refrigerant, and does not participate in cooling.

As shown in fig. 3, the arrows in each tube represent the circulation route of the refrigerant when the evaporator is frosted. When defrosting, the electromagnetic valve at the defrosting pipe inlet pipe 51 is opened, the refrigerant enters the evaporator inlet pipe 2 from the defrosting pipe 5 through the Y-shaped three-way connector 8, circulates in the evaporator coil 3, flows out of the evaporator body 1 through the liquid collecting pipe 4 and the air return pipe 6, heats the evaporator to defrost, wherein the temperature of the defrosting pipe coil 52 at the bottom of the evaporator body 1 is highest, and the defrosting water flowing down from the upper surface of the evaporator is continuously heated. The temperature of the defrosting water is increased, and the defrosting water is ensured not to freeze before being discharged.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that the utility model is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the utility model.

Claims (6)

1. The evaporator for hot gas defrosting comprises an evaporator body, wherein an evaporator coil, an evaporator inlet pipe, an air return pipe, a liquid collecting pipe and a liquid supply pipe are arranged on the evaporator body.

2. The evaporator for hot gas defrosting as set forth in claim 1, wherein said defrosting pipe comprises a defrosting pipe inlet pipe, a defrosting pipe coil pipe, a defrosting pipe outlet pipe; the defrosting pipe inlet pipe is arranged at the lower end of the right side of the evaporator body, the defrosting pipe coil is connected with the defrosting pipe inlet pipe, the defrosting pipe coil is arranged in the evaporator body, the defrosting pipe outlet pipe is connected with the defrosting pipe coil, and the connection part is positioned at the lower end of the left side of the evaporator body; the defrosting pipe outlet pipe is upwards connected with the evaporator inlet pipe at the outer side of the evaporator body.

3. An evaporator for hot gas defrosting as claimed in claim 2, wherein the defrosting pipe inlet pipe is connected to an electromagnetic valve, and further connected to a compressor.

4. An evaporator for hot gas defrosting as set forth in claim 2 wherein said defrosting pipe coil is wound in a U-shaped configuration on the inner bottom of the evaporator body from one side of the evaporator to the other side.

5. An evaporator for hot gas defrosting as set forth in claim 2 wherein said liquid supply tube is connected to the evaporator inlet tube; the defrosting pipe outlet pipe and the liquid supply pipe are connected to the evaporator inlet pipe through a three-way connector.

6. An evaporator for hot gas defrosting according to claim 5 wherein the three-way connector is provided on the upper side of the evaporator header.