WO2012075656A1

WO2012075656A1 - Air conditioning unit

Info

Publication number: WO2012075656A1
Application number: PCT/CN2010/080026
Authority: WO
Inventors: 雷宁
Original assignee: 惠州市合之宝环境设备有限公司
Priority date: 2010-12-06
Filing date: 2010-12-20
Publication date: 2012-06-14
Also published as: CN102003760A

Abstract

Disclosed is an air conditioning unit including an indoor part (20) and an outdoor part (21). A surface cooler (4) and an isenthalpic insulation dehumidifier are provided in the indoor part (20). A cooling fan (2) and a first wetted pad assembly (1) are provided in the outdoor part (21). The first wetted pad assembly (1) is communicated with the surface cooler (4) in the indoor part (20) through a first water supplying assembly (3). The cooling fan (2), the first wetted pad assembly (1), the first water supplying assembly (3) and the surface cooler (4) constitute an evaporative cooling system to provide circulating cooling water for the surface cooler (4). Fresh air from outside enters into a room through the surface cooler (4) and a second wetted pad assembly (6).

Description

[Name of invention established by ISA in accordance with Rule 37.2] Air Conditioning Unit

Technical field

The invention relates to the technical field of air conditioners, and particularly relates to a non-refrigerant air conditioning unit which uses water evaporation and refrigeration without using a compressor and a refrigerant system.

Background technique

At present, air conditioners that are widely used in the market and widely used by users are basically air-conditioning units that use a compressor with a refrigerant system. The energy efficiency ratio of this type of compressor air conditioning unit is about 3.0. R22 refrigerant is widely used in China, and its ODP is 0.05 and the greenhouse effect index is 0.34. In the future, R407C and R410A, which are substitutes for R22, have an ODP of 0, but their greenhouse effect indices are 0.36 and 0.42, respectively. They are also greenhouse gases, and their leakage will cause accelerated warming of the climate. It can be seen that air-conditioning systems that use refrigerants are not absolutely environmentally friendly.

At present, there are many air conditioning devices using water cooling in the market, such as the water curtain fan air conditioner disclosed in Chinese Patent No. 01270637.X, and the energy-saving water-cooled air conditioner disclosed in Chinese Patent No. 99220698.7. A wet curtain, a fan, a set of water supply system and related structural components. The water-cooled air conditioner of this structure has a small difference in temperature between the inlet and outlet, generally only 5 to 8 degrees, and the humidity of the outlet is as high as 95% or more. The air supply often carries water drops. At present, such water-cooled air conditioners can achieve energy-saving purposes, but the use effect is not satisfactory, and research and improvement are still to be continued.

Summary of the invention

The technical problem to be solved by the present invention is to provide a non-refrigerant air conditioning unit that is energy-saving and environmentally friendly. The air conditioning unit has no compressor and refrigerant system, and uses a combination of a surface cooler and a fan and a wet curtain to achieve temperature reduction.

In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

Designing a non-refrigerant air conditioning unit, including an indoor side and an outdoor side connected to the right side of the indoor side, the non-refrigerant air conditioning unit realizes multi-stage cooling and dehumidification by means of a combination of a surface cooler and a fan and a wet curtain, the indoor The surface cooler is installed in the side, and the air cooler is further provided with an air-cooling dehumidification treatment device for the air cooled by the air cooler, and the second heat-insulation and dehumidification treatment device is provided by the second wet curtain assembly to the second The indoor side fan for supplying air to the wet curtain assembly and the second water supply assembly for supplying circulating water to the second wet curtain assembly, wherein the outdoor side wall is provided with a cooling fan, and the corresponding cooling fan is opened on the other side of the outdoor side. a first wet curtain assembly is disposed adjacent to the air inlet, and the first wet curtain assembly is connected to the air cooler disposed in the indoor side through the first water supply assembly, the cooling fan, the first wet curtain assembly, and the first The water supply component and the surface cooler constitute an evaporative cooling system, and the evaporative cooling system provides circulating cooling water for the surface cooler, and the outdoor fresh air is sent to the air cooler by the indoor side fan, the second wet curtain assembly, and the like. After, the indoor side air vents into the room.

In the above technical solution, the specific structure on the outdoor side is that the cooling fan is installed in the middle of the right side wall of the outdoor side, and the air inlet is provided on the front wall and the rear wall of the outdoor side, and the air inlet of the front wall of the front side and the air inlet of the rear wall are close to the outdoor side. A first wet curtain assembly is provided, and the first water supply assembly is installed in the middle of the outdoor side.

The first water supply assembly includes a water tray at the bottom of the outdoor side, a float water supply valve connected to the water tray, a water pump connected to the water tray line, and a pipeline connecting the air cooler and the first wet curtain assembly. The water tray is filled with water through the float water supply valve, the water pump inlet pipeline is connected to the water tray, the water pump outlet is connected to the surface cooler inlet through the pipeline, and the air cooler outlet is connected to the first wet curtain assembly through the pipeline. Flowing through the first wet curtain assembly The water flows directly into the water tray.

In the above technical solution, the specific configuration on the indoor side is that the air cooler is installed in the middle of the indoor side, the indoor side rear wall is provided with an indoor side fan, and the second wet curtain assembly is located in front of the air cooler. The second water supply assembly includes a water tray, a water pump, a float water supply valve, and a pipeline connecting the water pump and the second wet curtain assembly in the indoor side, the water tray is installed at the bottom of the indoor side, and the float ball is connected with the water valve. The water tray is used to replenish water into the water tray, and the water pump connects the water tray and the second wet curtain assembly through the pipeline, and the water pump is used to send the water in the water tray to the second wet curtain assembly and flow through the second wet curtain assembly. The water flows directly into the water tray.

In order to prevent the water bead in the indoor side from being directly brought into the room, the above technical solution is further improved, and a water retaining plate is further disposed between the indoor side second wet curtain assembly and the indoor side air outlet.

Compared with the prior art, the invention has the following advantages:

1. The surface cooler using the cooling water as the medium without the use of the refrigerant is cooled by the air entering the room, and the cooling water of the air cooler is the low temperature water after the evaporator and the wet curtain assembly installed in the outdoor side are cooled and cooled. The effect is remarkable. In the invention, the outdoor cooling fan is installed in the middle of the outdoor side, and forms strong convection with the air inlets of the front side and the rear wall of the outdoor side, and the air flow energy is large; meanwhile, the invention is provided with two large evaporation areas symmetrically near the outdoor side air inlet. A wet curtain assembly correspondingly also provides a first water supply assembly with a large water supply amount, so that the water on the first wet curtain assembly on the outdoor side evaporates a large amount of latent heat, and the water temperature of the wet curtain is greatly reduced, thereby being cold The device provides low temperature cooling water. The outdoor air of the invention is processed by the table cooler and the indoor wet curtain assembly in two stages, and the indoor side inlet and outlet air temperature difference can reach 8-15 degrees, and the cooling effect with the refrigerant system unit is achieved.

2. The invention is used to make a fresh air system, so that the air sent to the room is reduced in temperature while the humidity is about 80%, which is better than the unit with the refrigerant system;

3. The invention saves more than 80% of electricity compared to a unit with a refrigerant system;

4. The invention is a very environmentally friendly product without the need for refrigerant charging.

DRAWINGS

1 is a top plan view showing a non-refrigerant air conditioning unit according to a specific embodiment of the present invention;

2 is a schematic front view of the non-refrigerant air conditioning unit of FIG. 1;

3 is a schematic side view showing the structure of the non-refrigerant air conditioning unit of FIG. 1.

4 is a schematic perspective view showing the structure of a non-refrigerant air conditioning unit of the present invention.

Fig. 5 is a wetting diagram of the air treatment process of the non-refrigerant air conditioning unit of the present invention.

Figure 6 is a partially enlarged schematic view of the process line of Figure 5.

detailed description

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

A non-refrigerant air conditioning unit shown in Figs. 1 to 4 includes an indoor side and an outdoor side connected to the right side of the indoor side. The non-refrigerant air conditioning unit realizes multi-stage cooling and dehumidification by means of a combination of a surface cooler and a fan and a wet curtain. It includes an outdoor side 21 that supplies cooling water to the surface cooler, and an indoor side 20 that performs multi-stage processing of air entering the room. The indoor side 20 and the outdoor side 21 are connected to form an integral non-refrigerant air conditioning unit.

The air cooler 4 is installed in the indoor side, and the air cooler is installed in the middle of the indoor side, and the air cooler is further provided with an air-cooling and dehumidifying treatment device for air cooled by the air cooler. The equal-diameter adiabatic dehumidification treatment device is composed of a second wet curtain assembly 6, an indoor side fan 5 that supplies air to the second wet curtain assembly, and a second water supply unit 7 that supplies circulating water to the second wet curtain assembly. The second wet curtain assembly 6 selects a wet curtain assembly having a relatively small evaporation area, such as a 5090 wet curtain. The indoor side fan is mounted on the indoor side rear wall, and the second wet curtain assembly is located in front of the surface cooler 4. The second water supply assembly 7 includes a water tray, a water pump, a float water supply valve, and a pipeline connecting the water pump and the second wet curtain assembly 6 in the indoor side, the water tray is installed at the bottom of the indoor side, and the float water supply valve is connected The water tray is used for replenishing water into the water tray, and the water pump connects the water tray and the second wet curtain assembly through the pipeline, and the water pump is used to send the water in the water tray to the second wet curtain assembly 6 and flow through the second wet curtain assembly. The water flows directly into the water tray.

A cooling fan is installed on the outdoor side wall, and the cooling fan is installed in the middle of the right side wall of the outdoor side, and the air inlet is provided on the front wall and the rear wall of the outdoor side, and the air inlet and the air inlet of the rear wall are respectively disposed near the outdoor side. There is a first wet curtain assembly. The first wet curtain assembly selects a wet curtain having a large evaporation area, such as a 7090 wet curtain. In this embodiment, two wet curtains with large evaporation areas are symmetrically arranged in the outdoor side, and the high-power cooling fan is disposed at the middle position of the air inlets of the front and rear walls of the outdoor side, thereby greatly improving the evaporation efficiency.

The first water supply assembly 3 is installed in the middle of the outdoor side 21, and the first wet curtain assembly 1 is connected to the air cooler 4 disposed in the indoor side through the first water supply assembly, the cooling fan 2, the first wet curtain assembly 1, and the first A water supply assembly 3 and a surface cooler 4 constitute an evaporative cooling system that provides circulating cooling water to the surface cooler.

The first water supply assembly 3 includes a water tray at the bottom of the outdoor side 21, a float water supply valve connected to the water tray, a water pump connected to the water tray line, and a pipeline connecting the air cooler and the first wet curtain assembly. The water tray is filled with water through the float water supply valve, the water pump inlet pipe is connected to the water tray, the water pump outlet is connected to the surface cooler inlet through the pipeline, and the air cooler outlet is connected to the first wet curtain assembly through the pipeline, and the flow Passing the first wet curtain assembly The water flows directly into the water tray.

The working principle of the non-refrigerated air conditioning unit of the present invention is as follows: after the outdoor drying (low enthalpy value) air is transported by the cooling fan 2, the air inlets on the front and rear walls of the outdoor side 21 flow through the corresponding first wet curtain assembly 1 ; At the suction of the cooling fan, the relative pressure of the air at the location of the first wet curtain assembly is a negative pressure; the hot (high enthalpy) water flowing out of the outlet of the air cooler is drenched through the first wet curtain assembly. When the water droplets are in contact with the air, on the one hand, due to the direct heat transfer between the air and the water, on the other hand, due to the pressure difference between the air and the water vapor, the evaporation phenomenon is generated under the action of the pressure, and the latent heat of evaporation of the water is taken away, thereby reducing The water temperature, the low-temperature water flows into the water tray, and then passes through the water pump to supply the air cooler 4, and the air cooler 4 exchanges heat with the air entering the indoor side 20.

The evaporative cooling system provided in the outdoor side 21 is for supplying cooling water to the air cooler 4 installed in the indoor side, and the air cooler 4 is for exchanging heat with the air entering the room to cool the air. During operation, the water pump in the outdoor side 21 pumps the high-temperature water sent out from the outlet of the air cooler 4, passes through the first wet curtain assembly, and then flows into the water tray to supply the air cooler on the indoor side, and the low-temperature water is in the air cooler. The air heat exchange absorbs the heat in the air, the water temperature rises, and the high temperature water flowing out from the outlet of the air cooler is sprayed onto the first wet curtain assembly, and the water flowing through the first wet curtain assembly 1 flows directly after cooling. The water tray and the low-temperature water in the water tray are again supplied to the surface cooler, and are sequentially cycled.

The invention does not have a significant influence on the whole process of cooling and dehumidification through the water supply valve of the float ball filling valve, because the invention utilizes the latent heat of water, and the proportion of sensible heat is small.

The fresh air treatment process of the non-refrigerated air conditioning unit of the present invention is sent to the indoor air: the outdoor dry air is sent from the indoor side fan 5 to the surface cooler 4, and exchanges heat with the low temperature water flowing in the air cooler 4, because the surface cooler is provided The evaporation area of the cooling water has a large evaporation area, and the cooling water temperature in the surface cooler is low. After the surface cooler is exchanged with the air, the temperature of the air can be lowered to a temperature close to the dew point. After heat exchange with the surface cooler, the enthalpy of the air decreases and the relative moisture content increases (as in the ab process line in Figures 5 and 6), and the low-temperature, low-lying air treated by the air cooler continues to flow through. The second wet curtain assembly 6 and the second wet curtain assembly 6 perform isothermal heat treatment on the low-temperature low-lying air, and the air is processed from the state point b in FIGS. 5 and 6 to the state point c. The temperature of the air rises slightly and the relative moisture content decreases. In order to prevent the air flowing through the second wet curtain assembly in the room from bringing the water drops into the room, A water deflector 8 is disposed between the indoor second second wet curtain assembly and the indoor side air outlet. Therefore, the outdoor fresh air is sent to the air cooler by the indoor side fan to be cooled, and the second wet curtain assembly is dehumidified, and then enters the room from the indoor air outlet through the water retaining plate.

The embodiments described above are only illustrative of the embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make several adjustments and improvements, such as selection changes of the transmission modulation processing circuit and the reception processing circuit, etc., without departing from the concept of the present invention. All belong to the protection scope of the utility model.

Claims

A non-refrigerant air conditioning unit includes an indoor side (20) and an outdoor side (21) connected to the right side thereof, wherein:

The non-refrigerant air conditioning unit realizes multi-stage cooling and dehumidification by means of a combination of a surface cooler, a fan and a wet curtain.

The air cooler (4) is installed in the indoor side, and the air cooler is further provided with an air-cooling dehumidification treatment device for cooling the air after being cooled by the air cooler, and the isolating heat-dehumidifying treatment device is second wet. a curtain assembly, an indoor side fan (5) for supplying air to the second wet curtain assembly, and a second water supply assembly (7) for supplying circulating water to the second wet curtain assembly (6),

A cooling fan (2) is mounted on the side wall of the outdoor side, and an air inlet is opened on the other side wall of the outdoor cooling side, and a first wet curtain assembly (1) is disposed adjacent to the air inlet, the first wet curtain The assembly is connected to the air cooler disposed in the indoor side through the first water supply assembly, and the cooling fan (2), the first wet curtain assembly (1), the first water supply assembly (3), and the surface cooler (4) are configured. An evaporative cooling system that provides circulating cooling water to the surface cooler.

The outdoor fresh air is sent to the indoor air through the indoor side air outlet by the indoor side fan to the table cooler cooling, the second wet curtain assembly, etc., after the heat is dehumidified.
The non-refrigerant air conditioning unit according to claim 1, wherein the cooling fan (2) is installed in the middle of the outdoor side right side wall, and the air inlet is opened on the outdoor side front wall and the rear wall, the first wet The curtain assembly is adjacent to the outdoor side front wall air inlet and the rear wall air inlet, and the first water supply assembly (3) is installed at the outdoor side central portion.
The non-refrigerant air conditioning unit according to claim 2, wherein said first water supply assembly comprises a water pan at the bottom of the outdoor side, a float ball replenishing valve connected to the water pan, and a pipe connection with the water pan. The water pump, and the pipeline connecting the air cooler (4) and the first wet curtain assembly (1), the water tray is filled with water through the float water supply valve, the water pump inlet pipeline is connected to the water tray, and the water pump outlet is connected through the pipeline To the inlet of the air cooler, the outlet of the air cooler is connected to the first wet curtain assembly through a pipeline, and the water flowing through the first wet curtain assembly (7090) directly flows into the water tray.
The non-refrigerant air conditioning unit according to claim 1, wherein the surface cooler (4) is installed in a central portion of the indoor side, and the indoor side rear wall is provided with an indoor side fan, and the second wet curtain assembly ( 6) Located in front of the air cooler.
The non-refrigerant air conditioning unit according to claim 4, wherein said second water supply assembly comprises a water tray, a water pump, a float water supply valve, and a connection water pump and a second wet curtain assembly (5090) located in the indoor side. The water pipe is installed at the bottom of the indoor side, the float ball replenishing valve is connected to the water pan for hydrating the water pan, the water pump connects the water pan and the second wet curtain assembly through the pipeline, and the water pump is used for water The water in the tray is sent to the second wet curtain assembly, and the water flowing through the second wet curtain assembly flows directly into the water tray.
The non-refrigerant air conditioning unit according to any one of claims 1 to 5, characterized in that a water retaining plate (8) is further provided between the indoor second second wet curtain unit and the indoor side air outlet.