CN208253835U - A kind of evaporation cooling channel air-conditioning system of combination laminar air-supply - Google Patents

Abstract

The utility model discloses a kind of evaporation cooling channel air-conditioning systems of combination laminar air-supply, including the indirect plus direct evaporative cooling air conditioner group outside house is arranged in, at least two indoor air outlets are respectively arranged on house side wall, indirectly plus direct evaporative cooling air conditioner group is connect by air supply tube with indoor air outlet, house inner top ceiling is equipped with exhaust outlet, exhaust outlet is connected with exhaust duct, and exhaust duct leads to outside house.A kind of evaporation cooling channel air-conditioning system of combination laminar air-supply of the utility model, be directly sent into people working region from wall side through cooling fresh air keeps Room air distribution design more reasonable in conjunction with exhaust outlet position.

Description

An Evaporative Cooling Ventilation and Air Conditioning System Combined with Laminar Air Supply

technical field

The utility model belongs to the technical field of air-conditioning equipment and relates to an evaporative cooling ventilation air-conditioning system combined with layered air supply.

Background technique

The construction industry consumes a lot of energy, and the HVAC part is one of the largest energy consumers. There are some unreasonable places in the traditional mechanical refrigeration and air conditioning process and air supply methods, such as low air supply temperature, low cooling efficiency, and too much processing. Problems such as the air in the non-working area lead to high energy consumption of the air conditioning system. With the development of today's air-conditioning technology, we should focus on optimizing the current existing air-conditioning system and reduce the energy consumption of the air-conditioning system from different angles.

Utility model content

The purpose of this utility model is to provide an evaporative cooling ventilation and air-conditioning system combined with layered air supply. The cooled fresh air is directly sent to the working area from the side of the wall, and combined with the position of the air outlet, the indoor air distribution is more reasonable.

The technical scheme adopted by the utility model is an evaporative cooling ventilation air-conditioning system combined with layered air supply, including indirect and direct evaporative cooling air-conditioning units arranged outside the house, and at least two indoor air-conditioning units are respectively arranged on the side walls of the house. The air outlet, indirect plus direct evaporative cooling air conditioning unit is connected to the indoor air supply outlet through the air supply pipe. There is an air exhaust outlet on the top ceiling of the house, and the exhaust outlet is connected to the exhaust pipe, which leads to the outside of the house.

The utility model is also characterized in that,

The indirect plus direct evaporative cooling air-conditioning unit includes an air-conditioning unit shell, and the opposite side walls of the air-conditioning unit shell are respectively provided with a primary air inlet and a primary air exhaust port, and the primary air exhaust port is connected to the indoor air supply port through the air supply pipe. According to the flow direction of the primary air, an indirect evaporative cooling section, a direct evaporative cooling section, a water baffle a and a blower are arranged in the shell of the air conditioner unit, and the blower is connected to the primary air outlet.

An air valve is arranged in the primary air outlet, and an exhaust fan is arranged in the exhaust pipe.

The indirect evaporative cooling section includes an indirect evaporative cooling core set corresponding to the primary air inlet, a water distributor b is arranged above the indirect evaporative cooling core, and a water tank b is arranged below the indirect evaporative cooling core, and the water tank b passes through the circulating water pipe b is connected to the water distributor b, the water distributor b is provided with a nozzle b spraying towards the indirect evaporative cooling core, and also includes a secondary air inlet located below the primary air inlet on the side wall of the air conditioning unit housing And the secondary air outlet set on the top wall of the air-conditioning unit housing corresponding to the top of the water distributor b, the water baffle b and the secondary air exhaust fan are arranged in the secondary air outlet in sequence from bottom to top, for indirect evaporative cooling A primary air passage is formed between the core body and the primary air inlet, and a windshield is arranged at the bottom of the primary air passage.

A circulating water pump b is also connected to the circulating water pipe b.

A filter is arranged in the primary air inlet and the secondary air inlet.

The direct evaporative cooling section includes packing. A water distributor a is arranged above the packing, and a water tank a is arranged below the packing. The water tank a is connected to the water distributor a through the circulating water pipe a. The water distributor a is provided with nozzles spraying toward the packing a.

A circulating water pump a is also connected to the circulating water pipe a.

The bottom of the housing of the air-conditioning unit is provided with a fan support, and the blower is installed on the fan support.

The indoor air supply outlet is set at 0.8-1.4m from the ground.

The beneficial effects of the utility model are:

(1) The evaporative cooling ventilation and air-conditioning system of the utility model, the outdoor fresh air is directly sent to the breathing area of the human body from the side of the wall after being processed by the indirect and direct evaporative cooling air-conditioning unit, so as to reduce the required air supply volume, combined with the position of the air outlet, so that Indoor air distribution is more reasonable, and at the same time, the air in the lower part of the room is better mixed, so that the generated temperature gradient meets the requirements of thermal comfort;

(2) The evaporative cooling ventilation and air-conditioning system of the utility model combines the characteristics of small air supply temperature difference of evaporative cooling air conditioner, large air supply volume and high air supply temperature required for layered air supply, and the system has a remarkable energy-saving effect. The construction field has great application potential;

(3) The evaporative cooling ventilation and air-conditioning system of the utility model adopts a direct-flow design, which can reduce the circulation time of indoor air and ensure indoor air quality;

(4) The evaporative cooling, ventilation and air-conditioning system of the present utility model utilizes the "dry air energy" in the air to cool down residential buildings, without using air-conditioning components such as compressors, evaporators, and condensers, and without using air-conditioning components that damage the ozone layer. Freon is used as a refrigerant, and water is used as a medium, which has no pollution to the environment;

(5) The evaporative cooling ventilation and air-conditioning system of the present utility model can start three operating modes according to changes in the outdoor environment: combined operation of indirect evaporative cooling and direct evaporative cooling, direct evaporative cooling operation, and ventilation operation.

Description of drawings

Fig. 1 is the structural representation of the utility model evaporative cooling ventilation and air-conditioning system;

Fig. 2 is a schematic structural view of the indirect plus direct evaporative cooling air-conditioning unit in the evaporative cooling ventilation and air-conditioning system of the present invention;

Fig. 3 is a flow diagram of wind in actual use of the evaporative cooling ventilation and air-conditioning system of the present invention.

In the figure, 1. Primary air inlet, 2. Secondary air inlet, 3. Filter, 4. Windshield, 5. Water tank b, 6. Circulating water pump b, 7. Circulating water pump a, 8. Water tank a , 9. Packing, 10. Fan bracket, 11. Air valve, 12. Blower fan, 13. Water baffle a, 14. Nozzle a, 15. Water distributor a, 16. Circulating water pipe a, 17. Circulating water pipe b, 18. Water baffle b, 19. Secondary air exhaust fan, 20. Water distributor b, 21. Nozzle b, 22. Indirect evaporative cooling core, 23. Indoor air supply port, 24. Air supply pipe, 25. Exhaust Air duct, 26. air outlet, 27. primary air outlet, 28. exhaust fan.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

An evaporative cooling ventilation and air-conditioning system combined with layered air supply, as shown in Figure 1, includes indirect and direct evaporative cooling air-conditioning units arranged outside the house, and at least two indoor air supply outlets are respectively arranged on the opposite two sides of the house 23. The indirect plus direct evaporative cooling air-conditioning unit is connected to the indoor air supply port 23 through the air supply pipe 24. There is an air exhaust port 26 at the center of the top ceiling in the house. The air exhaust port 26 is connected to the exhaust duct 25, and the exhaust duct 25 is to the outside of the house.

As shown in Figure 2, the indirect plus direct evaporative cooling air-conditioning unit includes an air-conditioning unit shell, and the opposite side walls of the air-conditioning unit shell are respectively provided with a primary air inlet 1 and a primary air exhaust port 27, and a primary air exhaust port 27 The air supply pipe 24 is connected to the indoor air supply port 23, and the shell of the air conditioner unit is sequentially provided with an indirect evaporative cooling section, a direct evaporative cooling section, a water baffle a13 and a blower 12 according to the flow direction of the primary air, and the blower 12 is connected to the primary air exhaust port 27.

A damper 11 is arranged in the primary air outlet 27 , and an exhaust fan 28 is arranged in the exhaust pipe 25 .

The indirect evaporative cooling section includes an indirect evaporative cooling core 22 corresponding to the primary air inlet 1, a water distributor b20 is arranged above the indirect evaporative cooling core 22, and a water tank b5 is arranged below the indirect evaporative cooling core 22. b5 is connected to the water distributor b20 through the circulating water pipe b17, the water distributor b20 is provided with a nozzle b21 spraying towards the indirect evaporative cooling core 22, and it is also included below the primary air inlet 1 on the side wall of the air conditioner unit housing The secondary air inlet 2 and the secondary air outlet set on the top wall of the air conditioner housing corresponding to the top of the water distributor b20, the secondary air outlet is provided with a water baffle b18 and a secondary air outlet in sequence from bottom to top. A primary air passage is formed between the air exhaust fan 19, the indirect evaporative cooling core 22 and the primary air inlet 1, and a windshield 4 is arranged at the bottom of the primary air passage.

A circulating water pump b6 is also connected to the circulating water pipe b17.

The primary air inlet 1 and the secondary air inlet 2 are jointly provided with a filter 3 .

The direct evaporative cooling section includes packing 9, above which there is water distributor a15, below which is provided water tank a8, which is connected to water distributor a15 through circulating water pipe a16, and water distributor a15 is provided with facing packing 9 Spray nozzle a14.

A circulating water pump a7 is also connected to the circulating water pipe a16.

The bottom in the housing of the air-conditioning unit is provided with a fan support 10 , and the blower 12 is installed on the fan support 10 .

The indoor air supply port 23 is set at 0.8-1.4m from the ground, so that the fresh air can be sent into the working area peacefully.

The air exhaust port 26 of the utility model is arranged at the central position above the house, combined with the position of the air supply port, the indoor air flow organization is more reasonable.

The working process of the evaporative cooling ventilation and air-conditioning system of the present invention can be divided into the working process of the wind system and the working process of the water system, as follows:

(1) Working process of wind system

The outdoor fresh air is divided into two parts and enters the unit through the air inlet:

A part of the primary air enters the unit from the primary air inlet 1 under the action of the blower 12, passes through the indirect evaporative cooling core 22 after being filtered by the filter 3 for iso-humid cooling, and the air after iso-humid cooling passes through the direct evaporative cooling packing 9. Perform isenthalpic cooling, and the fresh air after isenthalpy cooling is pumped by the blower 12, sent into the air supply pipe 24 through the primary air outlet 27, and finally sent into the room by the indoor air supply port 23;

Part of the secondary air enters the unit from the secondary air inlet 2 under the action of the secondary exhaust fan 19, and enters the secondary channel of the indirect evaporative cooling core 22 above the water tank b5 after being filtered by the filter 3, and is connected with the water distributor The circulating water sprayed by b20 performs heat and moisture exchange, and the secondary air absorbs the heat of the primary air in the adjacent channel in the secondary channel, and then passes through the water baffle b18 and is discharged by the secondary exhaust fan 19;

The fresh air after indirect and direct evaporative cooling air-conditioning unit direct evaporative cooling section after isenthalpy cooling treatment is sent into the air-conditioning area through the indoor air supply port 23, and then gently passes over the human body working area, taking away the waste heat in the room, and part of it is exhausted Mouth 26 is discharged outdoors, and another part is infiltrated outdoors by room door crack, window crack.

(2) Working process of water system

The working process of the water system in the indirect evaporative cooling section is as follows:

The circulating water in the water tank b5 enters the water distributor b20 through the circulating water pipe b17 under the action of the circulating water pump b6, and then sprays downward from the nozzle b21 into the secondary channel of the indirect evaporative cooling core. The secondary air falls into the water tank b5 after heat and moisture exchange, and it circulates like this;

The working process of the water system in the direct evaporative cooling section is as follows:

The circulating water in the water tank a8 enters the water distributor a15 through the circulating water pipe a16 under the action of the circulating water pump a7, and then sprays downward on the filler 9 through the nozzle a14, and the circulating water of the filler 9 is pre-cooled by the indirect evaporative cooling section The primary cold air is contacted, the primary cold air is cooled again, and then a part of the water evaporates, and the unevaporated circulating water falls into the water tank a8, and thus circulates.

The evaporative cooling ventilation and air conditioning system of the utility model can realize the following three operation modes:

(1) Combined operation mode of indirect evaporative cooling and direct evaporative cooling (IDEC): mainly for summer working conditions, where the outdoor air temperature is relatively high. In this operating mode, the indirect evaporative cooling section and the direct evaporative cooling section should be turned on;

(2) Direct evaporative cooling operation mode (DEC): mainly for the transitional season, and the humidity content of the outdoor air is less than that of the air supply state. In this operation mode, only the direct evaporative cooling section needs to be turned on;

(3) Ventilation operation mode: mainly for when the outdoor air enthalpy is lower than the indoor air enthalpy, in this operation mode it is only necessary to turn on the blower 12 and open the air outlet 26 for ventilation.

Claims (10)

1. a kind of evaporation cooling channel air-conditioning system of combination laminar air-supply, which is characterized in that including being arranged in outside house Add direct evaporative cooling air conditioner group indirectly, at least two indoor air outlets (23), institute are respectively arranged on the house side wall It states indirectly plus direct evaporative cooling air conditioner group is connect by air supply tube (24) with indoor air outlet (23), the house inner top Ceiling is equipped with exhaust outlet (26), and the exhaust outlet (26) is connected with exhaust duct (25), and the exhaust duct (25) is led to Outside house.

2. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that it is described indirectly plus directly evaporate it is cold But air-conditioner set includes air conditioner set shell body, be respectively arranged on the opposite two sidewalls of the air conditioner set shell body First air into Air port (1) and an exhaust outlet (27), an exhaust outlet (27) are connect by air supply tube (24) with indoor air outlet (23), Indirect evaporating-cooling section, direct evaporating-cooling are disposed with according to the flow direction of First air in the air conditioner set shell body Section, water fender a (13) and pressure fan (12), the pressure fan (12) connect an exhaust outlet (27).

3. evaporation cooling channel air-conditioning system according to claim 2, which is characterized in that in an exhaust outlet (27) It is provided with air-valve (11), is provided with exhaust blower (28) in the exhaust duct (25).

4. evaporation cooling channel air-conditioning system according to claim 2, which is characterized in that the indirect evaporating-cooling section packet Include the indirect evaporating-cooling core (22) being correspondingly arranged with the First air air inlet (1), the indirect evaporating-cooling core (22) it is provided with above water distributor b (20), is provided with water tank b (5) below the indirect evaporating-cooling core (22), it is described Water tank b (5) is connect by circulating water pipe b (17) with the water distributor b (20), is provided between on the water distributor b (20) Connect evaporation cooling core body (22) spray nozzle b (21), further include setting air conditioner set shell body side wall on be located at First air into Secondary Air air inlet (2) below air port (1) and above the water distributor b (20) on corresponding air conditioner set shell body roof The secondary exhausting mouth of setting is disposed with water fender b (18) and Secondary Air exhaust blower in the secondary exhausting mouth from bottom to top (19), First air runner is formed between the indirect evaporating-cooling core (22) and First air air inlet (1), it is described primary distinguished and admirable Road bottom is provided with wind deflector (4).

5. evaporation cooling channel air-conditioning system according to claim 4, which is characterized in that on the circulating water pipe b (17) It is also connected with water circulating pump b (6).

6. evaporation cooling channel air-conditioning system according to claim 4, which is characterized in that the First air air inlet (1) With Secondary Air air inlet (2) in be provided with filter (3) jointly.

7. evaporation cooling channel air-conditioning system according to claim 2, which is characterized in that the direct evaporating-cooling section packet It includes filler (9), is provided with water distributor a (15) above the filler (9), be provided with water tank a (8) below the filler (9), The water tank a (8) connects the water distributor a (15) by circulating water pipe a (16), and court is provided on the water distributor a (15) and is filled out Expect the nozzle a (14) of (9) spray.

8. evaporation cooling channel air-conditioning system according to claim 7, which is characterized in that on the circulating water pipe a (16) It is also connected with water circulating pump a (7).

9. according to evaporation cooling channel air-conditioning system described in claim 2-8 any one, which is characterized in that the air conditioner The group intracorporal bottom of shell is provided with fan supporter (10), and the pressure fan (12) is mounted on the fan supporter (10).

10. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the interior air outlet (23) It is arranged at 0.8-1.4m from the ground.