CN206399049U - Supercooled structure and air conditioner using it - Google Patents

Abstract

The utility model discloses a supercooling structure and adopt its air conditioner, this supercooling structure include evaporimeter and water collector, the evaporimeter is installed on the water collector, under the operating condition the lower part of evaporimeter contacts with the comdenstion water in the water collector. Through the supercooling structure provided by the utility model, the air conditioner can realize the supercooling effect without additionally adding a supercooling heat exchanger and a throttling component; the cold energy of the condensed water on the evaporator can be fully utilized; the pressure loss of the system can be reduced, and the refrigeration efficiency of the system is improved.

Description

Supercooled structure and air conditioner using it

technical field

The utility model relates to the technical field of heat exchange equipment, in particular to a supercooling structure and an air conditioner using the same.

Background technique

In the current air-conditioning system, there are two heat exchange equipments including evaporator and condenser. The evaporator is generally installed after the throttling device and before the gas-liquid separator, mainly to provide heat for the working fluid returning to the compressor and deliver cold air to the external environment. Our common indoor wall-mounted machine is a kind of evaporator. Because throttling the working fluid can reduce the temperature of the working fluid and provide more cooling energy for the user, the current air-conditioning system generally adopts a throttling device before the evaporator, and uses the throttling device to reduce the temperature to achieve overheating. cold effect.

Although such a supercooling design will increase the cooling capacity of the evaporator and provide more cooling energy for the user, the overall volume of the evaporator will increase due to the addition of a subcooling heat exchanger or a throttling device. Manufacturing cost, and the throttling device is prone to damage and blockage, and has poor reliability.

Utility model content

One object of the present invention is to provide a supercooling structure, which can realize the supercooling effect without adding additional throttling devices or heat exchangers.

Another object of the present utility model is to provide an air conditioner, which can achieve supercooling effect without adding an additional throttling device or heat exchanger, reduce system pressure loss, and improve energy efficiency.

For this purpose, the utility model adopts the following technical solutions:

On the one hand, the utility model provides a supercooling structure, including an evaporator and a water receiving tray, the evaporator is installed on the water receiving tray, and the lower part of the evaporator and the condensation in the water receiving tray in the working state water contact.

Specifically, the evaporator includes a subcooling tube and an evaporating tube, the subcooling tube is arranged below the evaporating tube, the outlet of the subcooling tube communicates with the inlet of the evaporating tube, and the subcooling tube is connected to the water tray in the working state. contact with condensate.

Specifically, the evaporator includes a subcooling tube, a liquid separator, and an evaporation tube. The supercooling tube is arranged below the evaporating tube. Both are connected with the inlet of an evaporating tube, and the subcooling tube is in contact with the condensed water in the water receiving tray under working conditions.

Preferably, the subcooling pipe is submerged in the condensed water of the water receiving tray in the working state.

The subcooling tube at the lower part of the evaporator is set to be in contact with the condensed water in the water receiving pan, and the working fluid in the subcooling tube can make full use of the cooling energy of the condensed water in the water receiving pan, so that the evaporator does not need additional throttling The supercooling effect can be realized by the device or the subcooling heat exchanger, the structure is simple, convenient and energy-saving, the volume is small, and the production cost is low.

Further, the outer wall of the evaporation tube is provided with fins;

Alternatively, the outer walls of the subcooling tube and the evaporating tube are both provided with fins.

The addition of fins can effectively improve the heat exchange efficiency between the subcooling tube and condensed water, between the evaporating tube and the air, and can evenly space the subcooling tube and evaporating tube for spacing, protection, positioning and support effect.

Further, the supercooling pipe includes several straight pipes and bent connecting pipes for connecting the straight pipes.

Setting the subcooling pipe in the shape of a meandering serpentine coil can realize a larger heat exchange area in a smaller space and improve heat exchange efficiency.

Further, the inlet and outlet of the subcooling pipe are arranged on the same side of the evaporator. Setting the inlet and outlet of the subcooling pipe on the same side is beneficial to simplify the manufacturing process and save manufacturing cost during manufacturing.

Further, a drainage pipe is provided on the water receiving tray.

Specifically, the drain pipe is located at the end of the water receiving tray away from the inlet and outlet of the subcooling pipe.

The purpose of setting the drain pipe away from the inlet and outlet of the subcooling pipe is to allow the working medium in the supercooling pipe and the flow of condensed water to form countercurrent heat exchange and increase the heat exchange efficiency.

Further, the inner surface of the bottom of the water receiving tray slopes downward from the side away from the drain pipe to the side close to the drain pipe, so as to facilitate the flow of condensed water in other parts of the water receiving tray to the drain pipe.

On the other hand, the utility model provides an air conditioner, which includes an indoor unit and an outdoor unit, and the indoor unit includes any one of the above-mentioned supercooling structures. By setting the lower part of the evaporator to be in contact with the condensed water in the water tray to absorb the cooling energy of the condensed water, an additional throttling device can be saved, the manufacturing cost and volume quality of the air conditioner can be reduced, the system pressure loss can be reduced, and the air conditioner can be improved. cooling efficiency.

The beneficial effects of the utility model are: to provide a supercooling structure and an air conditioner using it, by setting the lower part of the evaporator to be in contact with the condensed water in the water tray to absorb the cooling energy of the condensed water, the following effects are achieved:

1) The structure of the subcooling design is simple, and there is no need to add additional subcooling heat exchangers and throttling components;

2) The cold energy of the condensed water on the evaporator can be fully utilized;

3) Reduce the pressure loss of the refrigeration system and improve the refrigeration efficiency of the system.

Description of drawings

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

Figure 1 is an overall schematic diagram of the supercooled structure described in Embodiment 1;

Fig. 2 is a partial schematic diagram of the supercooling structure described in the first embodiment.

In Figure 1 to Figure 2:

1. Drain tray; 101. Bottom box; 102. Drainage pipe;

2. Evaporator; 201, subcooling tube; 202, fin; 203, evaporation tube.

detailed description

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Embodiment one

As shown in Figure 1, a subcooling structure includes an evaporator 2 and a water receiving tray 1, the evaporator 2 is installed above the water receiving tray 1, and the evaporator 2 includes a supercooling tube 201, fins 202 and evaporating tubes 203 , the supercooling pipe 201 is arranged below the evaporating pipe 203 , and the supercooling pipe 201 is in contact with the condensed water in the water receiving tray 1 in the working state. The outer walls of the supercooling tube 201 and the evaporating tube 203 are provided with fins 202. In addition to increasing the heat exchange area and improving the heat exchange efficiency, the fins 202 can also space, protect and protect the supercooling tube 201 and the evaporating tube 203. positioning and support.

As an implementation manner, when the evaporator 2 has only one set of evaporating tubes 203 , the outlet of the subcooling tube 201 can be directly connected to the inlet of the evaporating tube 203 . As another embodiment, when the evaporator 2 has multiple groups of parallel evaporation tubes 203, the evaporator 2 also includes a liquid separator, and the outlet of the supercooling pipe 201 can communicate with the inlet of the liquid separator, and the liquid separator Each of the liquid outlets is communicated with the inlet of an evaporating tube 203. Distributing the working medium flowing into each group of evaporator tubes 203 through the liquid separator is beneficial to control the evaporation effect of the entire evaporator 2, reduce the amount of liquid carried at the outlet of the evaporator 2, and ensure the stable and normal operation of the entire refrigeration system.

As shown in FIG. 2 , the water receiving tray 1 includes a bottom box 101 and a drain pipe 102 , and the bottom box 101 is used to catch the condensed water left on the evaporator 2 . The supercooling pipe 201 includes several straight pipes and bent connecting pipes for connecting the straight pipes. The supercooling pipe 201 is arranged as a serpentine coil, the inlet and outlet of the supercooling pipe 201 are arranged on the same side of the evaporator 2, and are located at one end of the water receiving tray 1; the drain pipe 102 is located on the water receiving tray 1 away from One end of the inlet and outlet of the subcooling pipe 201, the inner surface of the bottom of the water receiving tray 1 is inclined downward from the side away from the drain pipe 102 to the side close to the drain pipe 102, so as to facilitate the flow of condensed water in other parts of the water receiving tray 1. drain pipe 102 . Such a design is beneficial to allow the working medium in the partial subcooling pipe 201 to form a countercurrent heat exchange with the flow of condensed water, thereby increasing the heat exchange efficiency. Of course, the inlet and outlet of the subcooling pipe 201 can also be arranged on different sides of the evaporator 2 according to actual production needs or to facilitate the pipeline configuration in the unit.

In the above-mentioned supercooling structure, the supercooling pipe 201 at the lower part of the evaporator 2 is set to be in contact with the condensed water in the water receiving tray 1, and the working medium in the supercooling pipe 201 can make full use of the cooling energy of the condensed water in the water receiving tray 1 , so that the evaporator 2 can realize the supercooling effect without adding an additional throttling device or a subcooling heat exchanger, the structure is simple, convenient and energy-saving, the volume is small, and the production cost is low.

Embodiment two

An air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit includes the supercooling structure in Embodiment 1. By setting the subcooling pipe 201 at the lower part of the evaporator 2 to contact with the condensed water in the water receiving tray 1 to absorb the cooling energy of the condensed water, an additional throttling device can be omitted, the cooling energy of the condensed water can be fully utilized, and the air conditioner’s operating efficiency can be reduced. The manufacturing cost and volume quality can be reduced, and the system pressure loss can be reduced, and the refrigeration energy efficiency of the air conditioner can be improved.

It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present utility model and the applied technical principles. Within the technical scope disclosed in the present utility model, any changes or changes that are easily conceivable by those skilled in the art Replacement should be covered within the protection scope of the present utility model.

Claims (8)

1. A supercooling structure, characterized in that it comprises an evaporator (2) and a water receiving tray (1), and the evaporator (2) is installed on the described water receiving tray (1), described in the working state The lower part of the evaporator (2) is in contact with the condensed water in the water receiving tray (1); The evaporator (2) includes a subcooling tube (201) and an evaporating tube (203), the subcooling tube (201) is arranged below the evaporating tube (203), and the outlet of the subcooling tube (201) is connected to the evaporating tube (203) ) is connected to the inlet, and the subcooling pipe (201) is in contact with the condensed water in the water tray (1) in the working state; Or, the evaporator (2) includes a subcooling tube (201), a liquid separator and an evaporating tube (203), and the subcooling tube (201) is arranged below the evaporating tube (203), and the subcooling tube (201) The outlet is connected to the inlet of the liquid separator, and each liquid outlet of the liquid separator is connected to the inlet of an evaporating tube (203). Under the working state, the condensation in the subcooling tube (201) and the water receiving tray (1) water contact. 2. The supercooling structure according to claim 1, characterized in that, the outer wall of the evaporation tube (203) is provided with fins (202); Alternatively, fins (202) are provided on the outer walls of the supercooling tube (201) and the evaporating tube (203). 3. The supercooling structure according to claim 1, characterized in that the supercooling pipe (201) comprises several straight pipes and bent connecting pipes for connecting the straight pipes. 4. The subcooling structure according to claim 1, characterized in that the inlet and outlet of the subcooling pipe (201) are arranged on the same side of the evaporator (2). 5. The supercooling structure according to claim 4, characterized in that a drain pipe (102) is provided on the water receiving tray (1). 6. The supercooling structure according to claim 5, characterized in that, the drain pipe (102) is located at the end of the water receiving tray (1) away from the inlet and outlet of the supercooling pipe (201). 7. The supercooling structure according to claim 5, characterized in that, the inner surface of the bottom of the water receiving tray (1) is inclined from the side away from the drain pipe (102) to the side close to the drain pipe (102). Down. 8. An air conditioner, comprising an indoor unit and an outdoor unit, characterized in that the indoor unit comprises the supercooling structure according to any one of claims 1 to 7.