CN206572649U - A kind of reinforcing refrigeration outdoor unit of Split air conditioning system - Google Patents

Abstract

The utility model discloses an enhanced refrigeration outdoor unit of a split air-conditioning system, which comprises a cold water storage tank and a shell, the cold water storage tank is located above the shell, the shell is a tubular structure with two ends open, and the inside of the shell is from the air inlet end. An evaporative cooler, a capillary tube bundle device, a condenser and a fan are arranged in sequence toward the air outlet, and the upper end surface of the condenser is covered with the first sponge; The device is respectively connected with the first sponge and the evaporative cooler; the capillary bundle device includes a capillary bundle, a plurality of drainage wires and a second sponge; the lower end of the drainage wire is in contact with the second sponge, and the upper end of the drainage wire extends into the capillary of the capillary bundle; The bottom of the housing is provided with a water collection tank; the soaked end of the capillary bundle is placed in the water collection tank at the bottom of the housing. The utility model has the advantages of simple structure, energy saving, and realizes zero discharge of condensed water of the evaporator of the indoor unit.

Description

An enhanced refrigeration outdoor unit of a split air-conditioning system

technical field

The utility model relates to the technical field of air conditioning and refrigeration, in particular to an enhanced refrigeration outdoor unit of a split air conditioning system.

Background technique

As one of the four major components of the refrigeration system, the condenser is the place where the refrigerant condenses and releases heat to become liquid. In summer, due to the increase of ambient temperature, the heat transfer of the condenser of the outdoor unit is weakened, or even stagnated, which seriously affects the performance of the air conditioner. In addition, the outdoor unit operates in a high temperature environment, which will shorten its service life.

Since the surface temperature of the evaporator of the indoor unit of the air conditioner is generally 7°C to 12°C, in the process of heat exchange with the air, it is accompanied by sensible heat, latent heat and moisture exchange, so the temperature of the condensed water produced by the heat exchanger of the indoor unit is about 10°C to 15°C. A certain amount of cooling, and the higher the air moisture content, the greater the amount produced. In hot and humid areas of our country, the amount of condensed water produced by air conditioners is considerable.

In addition, household air conditioners are a type of split air conditioners, which are installed according to user requirements, and the condensed water generated during operation is discharged randomly. There are often scenarios of "passengers downstairs, rain upstairs". However, there are traces of running water on the exterior walls of light-colored buildings using split air conditioners, which have a considerable impact on the city appearance, especially high-rise residential buildings.

Use air conditioner condensate water or low temperature water to pre-cool the condenser air intake and cool the condenser, use cold water to meet the outdoor hot air and the heated condenser, absorb heat and evaporate, increase the heat dissipation of the condenser, and reduce its operating temperature, thereby improving the performance of the air conditioner .

The ways to enhance the heat transfer of heat exchangers in air-conditioning and refrigeration systems include air-side heat transfer enhancement, refrigerant-side heat transfer enhancement, and heat exchanger structural design. No matter which way, the heat transfer of the heat exchanger is strengthened, and the cooling capacity of the air conditioner will be improved. The heat transfer enhancement of the air side heat exchanger is mainly to increase the temperature difference between the air and the heat exchanger (refrigerant) to enhance the convection and heat transfer capabilities.

Contents of the invention

In order to solve the above technical problems, the utility model provides an enhanced refrigeration outdoor unit of a split air-conditioning system with simple structure, energy saving and zero discharge of condensed water from the evaporator of the air-conditioning indoor unit.

The technical scheme adopted by the utility model is: an outdoor unit for enhanced refrigeration of a split air-conditioning system, including a cold water storage tank and a housing, the cold water storage tank is located above the housing, and the housing is a tubular structure with two ends open. An evaporative cooler, a condenser and a fan are provided, and the upper end surface of the condenser is covered with a first sponge; the evaporative cooler is arranged at the opening of the air inlet end of the housing and covers the entire opening, and the fan is close to the outlet of the housing The air end is set; the bottom of the cold water storage tank is provided with a water outlet pipe, and the water outlet pipe is respectively connected to the first sponge and the evaporative cooler through a flow divider; a capillary bundle device is also provided in the housing, and the capillary bundle device includes a capillary bundle, a plurality of The drainage wire and the second sponge; the second sponge is arranged parallel to the wind direction, the lower end of the drainage wire is in contact with the second sponge, and the upper end of the drainage wire extends into the capillary of the capillary bundle; the evaporative cooler and the condenser at the bottom of the housing A water collection tank is provided directly below, the capillary tube bundle is installed between the condenser and the evaporative cooler, and the water-immersed end of the capillary tube bundle is placed in the water collection tank at the bottom of the shell.

In the above-mentioned enhanced refrigeration outdoor unit of the split air-conditioning system, the cold water storage tank is a closed and insulated square box, and the upper part is provided with a condensate pipe and a tap water pipe connection, the condensate water pipe is connected to the evaporator of the indoor unit, and the tap water pipe connection There is a solenoid valve and a float valve on it.

In the enhanced refrigeration outdoor unit of the above-mentioned split air conditioning system, the water collection tank is located outside the housing, and the bottom of the housing corresponding to the water collection tank is provided with a through hole connecting the inner cavity of the housing and the water collection tank.

In the above-mentioned enhanced refrigeration outdoor unit of the split air conditioning system, the water-immersed end of the capillary bundle is wrapped with a filter cloth.

In the above-mentioned enhanced refrigeration outdoor unit of the split air-conditioning system, the bottom of the cold water storage tank is provided with a cleaning pipe interface.

In the above-mentioned enhanced refrigeration outdoor unit of the split air-conditioning system, the first sponge is fixed in the housing by a bracket and located above the condenser.

Compared with the prior art, the beneficial effect of the utility model is: the water collection tank of the utility model collects the condensed water produced by the evaporator of the indoor unit of the air conditioner, and the capillary tube bundle device can make the cold water not completely evaporated continue to evaporate and absorb heat to realize condensation Zero discharge of water, and there is no power input in these two processes; according to the evaporation of cold water, tap water is introduced quantitatively to form a cold water supply and demand cycle to ensure the continuity of the cooling effect during the operation of the air conditioner; the introduction of tap water is controlled through the linkage between the outdoor temperature sensor and the solenoid valve And its introduction, the float valve in the water storage tank controls the water level, saving energy.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a bottom view of the flow divider of the present invention.

Fig. 3 is a schematic structural view of the capillary bundle device of the present invention.

Figure 4 is a front view of the evaporative cooler fill material.

Description of serial numbers in the figure: 1-Condensate water pipe, 2-Tap water pipe interface, 3-Solenoid valve, 4-Float valve, 5-Cold water storage tank, 6-Cleaning pipe interface, 7-Splitter, 8-Evaporative cooler, 9 - capillary bundle device, 10 - sump, 11 - first sponge, 12 - condenser, 13 - fan.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1-4, the utility model includes a cold water storage tank 5, a housing and a water collection tank 10. The water storage tank 5 is a closed square box, and the upper part is provided with a condensation water pipe 1 and a tap water pipe interface 2. The water pipe 1 is connected with the evaporator of the indoor unit, and the tap water pipe interface 2 is provided with a solenoid valve 3 and a float valve 4, and the tap water pipe interface 2 is connected with the tap water pipe for replenishing cold water.

The cold water storage tank 5 is located above the shell, which is a tubular structure with openings at both ends. An evaporative cooler 8, a capillary tube bundle device 9, a condenser 12 and a fan 13 are arranged in the shell, and the upper end surface of the condenser 12 is covered with The first sponge 11, the first sponge 11 is fixed in the housing through a bracket, is located directly above the condenser 12, and covers the entire upper surface of the condenser 12. The evaporative cooler 8 is arranged at the opening of the air inlet end of the casing, and covers the entire opening, and the fan 13 is arranged near the air outlet end of the casing. Described capillary bundle device 9 comprises capillary bundle 91, a plurality of drainage wires 92 and the second sponge 93; The lower end is in contact with the second sponge 93 , and the upper end of the drainage wire 92 extends into the capillary of the capillary bundle 91 . A water collection tank 10 is arranged directly under the bottom evaporative cooler and the condenser of the housing, and the water collection tank 10 is located outside the housing. The capillary bundle device 9 is located between the condenser 12 and the evaporative cooler 8, and the water-immersed end of the capillary bundle 91 is placed in the sump 10 at the bottom of the housing. The bottom of the cold water storage tank 5 is provided with a water outlet pipe and a cleaning pipe interface 6, and the water outlet pipe is respectively connected with the first sponge 11 and the evaporative cooler 8 through a flow divider 7.

The working principle of the utility model is as follows: firstly, a closed thermal insulation cold water storage tank 5 is set to provide a cold source (cold water) for the comprehensive cooling of the utility model, and a part of the cold water comes from the condensed water produced by the evaporator of the indoor unit, which flows by gravity to the cold water storage tank 5's. The other part is linked by the outdoor temperature sensor and the solenoid valve 3, and tap water is introduced to replenish the cold water in the cold water storage tank 5, and the introduction of tap water is controlled by the float valve 4 as required.

Secondly, evaporative cooling technology is used to strengthen the refrigeration of the utility model. A part of cold water precools the outdoor air in the evaporative cooler 8 to evaporate and absorb heat; the other part of cold water flows through the first sponge 11 to the condenser 12 to directly evaporate and absorb heat.

Finally, the incompletely evaporated cold water from the evaporative cooler 8 and the condenser 12 is collected into the sump 10 at the bottom of the shell, and under the action of capillary action and diffusion, the cold water is transported upwards through the capillary bundle device 9 to continue evaporating and absorbing heat, reducing the The temperature of the outdoor unit and its ambient temperature can improve the cooling efficiency of the outdoor unit, and finally improve the cooling effect of the split air conditioner.

The filling material of the evaporative cooler 8 covers the air inlet section of the casing, and the thickness and aperture density are determined according to the best cooling effect and the minimum additional resistance. The height of the water surface in the sump 10 is supplied according to the amount of evaporative cold water under the influence of the outdoor temperature and wind speed: a range of the opening of the supply cold water switch is obtained through experiments, which is regulated by the outdoor temperature sensor and its linkage switch. The capillary bundle 91 and the second sponge 93 of the capillary bundle device 9 are arranged parallel to the air inlet direction, and the lower end of the capillary bundle 91 is placed under the water surface of the sump 10, and the entire capillary bundle device 9 is fixed by a bracket as required, and its specification depends on evaporative cooling The size of the space between the device 8 and the condenser 12 and the amount of cold water in the sump 10.

Generally, when the utility model starts cooling operation, the condensed water generated by the evaporator of the indoor unit flows along the condensed water pipe 1 to the cold water storage tank 5 by gravity, and then is diverted by the flow divider 7 to the evaporative cooler 8 and the condenser 12 . When the outdoor temperature is high (over 35°C), the outdoor temperature sensor sends a signal to the solenoid valve 3, and the solenoid valve 3 is connected to the tap water supply. When the water level reaches 2/3 of the volume of the cold water storage tank or even higher, the float valve Closed; when the water level was too low (can not provide sufficient cold water), the float valve 4 was opened, and so circulated. The setting of outdoor temperature sensor, solenoid valve 3 linkage and float valve 4 embodies the concept of energy saving.

Claims (6)

1. An enhanced refrigeration outdoor unit of a split air-conditioning system, comprising a cold water storage tank and a casing, the cold water storage tank is located above the casing, the casing is a tubular structure with openings at both ends, and an evaporative cooler, condensing The upper end surface of the condenser is covered with a first sponge; the evaporative cooler is arranged at the opening of the air inlet end of the casing, and covers the entire opening, and the fan is arranged near the air outlet end of the casing; the cold water storage tank The bottom is provided with a water outlet pipe, and the water outlet pipe is respectively connected with the first sponge and the evaporative cooler through a flow divider; it is characterized in that: a capillary bundle device is also provided in the housing, and the capillary bundle device includes a capillary bundle, a plurality of drainage wires and The second sponge; the second sponge is arranged parallel to the wind direction, the lower end of the drainage wire is in contact with the second sponge, and the upper end of the drainage wire extends into the capillary of the capillary bundle; the bottom of the housing is directly below the evaporative cooler and the condenser A water collection tank is provided, and the capillary tube bundle is installed between the condenser and the evaporative cooler, and the water-immersed end of the capillary tube bundle is placed in the water collection tank at the bottom of the shell. 2. The enhanced refrigeration outdoor unit of the split air-conditioning system according to claim 1, characterized in that: the cold water storage tank is a closed and insulated square box, the upper part is provided with a condensate pipe and a tap water pipe interface, and the condensate pipe is connected to The evaporator of the indoor unit is connected, and the tap water pipe interface is provided with a solenoid valve and a float valve. 3. The enhanced refrigeration outdoor unit of the split air-conditioning system according to claim 1, characterized in that: the sump is located outside the housing, and the bottom of the housing corresponding to the sump is provided with a communication channel connecting the inner cavity of the housing and the sump. hole. 4. The enhanced refrigeration outdoor unit of the split air conditioning system according to claim 1, characterized in that: the water-immersed end of the capillary bundle is wrapped with a filter cloth. 5. The enhanced refrigeration outdoor unit of the split air conditioning system according to claim 1 or 2, characterized in that: the bottom of the cold water storage tank is provided with a cleaning pipe interface. 6. The enhanced refrigeration outdoor unit of the split air-conditioning system according to claim 1 or 2, characterized in that: the first sponge is fixed in the housing by a bracket and located above the condenser.