CN106004339B - Bus ceiling mounting type Evaporative Cooling Air-conditioning System - Google Patents

Abstract

The ceiling-mounted evaporative cooling air-conditioning system for a bus disclosed by the present invention is composed of a plurality of ceiling-mounted evaporative cooling and cooling units arranged on the bus roof, and the plurality of ceiling-mounted evaporative cooling and cooling units are connected to the inside of the bus compartment. The ceiling-mounted evaporative cooling air-conditioning system for buses of the present invention can effectively improve the air quality in the bus and has low air-conditioning energy consumption.

Description

Ceiling-type evaporative cooling air-conditioning system for buses

technical field

The invention belongs to the technical field of air-conditioning systems, and in particular relates to a ceiling-mounted evaporative cooling air-conditioning system for buses.

Background technique

Most of the air-conditioning systems used in our country’s buses are based on vapor compression refrigeration. The refrigerants used in some bus air-conditioning systems are also polluting the atmosphere more and more seriously. In addition, due to the large number of passengers in the bus, the activity space is small, and the phenomena of passengers smoking and throwing garbage often exist, and the existing air-conditioning system for automobiles only performs heat and humidity treatment on the return air in the bus, and there is no fresh air. Entering the compartment, it is easy to cause the problem of poor air quality in the bus.

Based on the above disadvantages, it is very necessary to improve the air-conditioning system in the existing bus: adopt an improved circulating water tank, and set a special conical water inlet on the circulating water tank, which can reduce the water splashing during the driving of the bus; A larger air inlet is set on the roof of the bus, so that more air can flow in when the bus is running, and there is no need to install a separate fan, which reduces the energy consumption of the air conditioner while cooling down; the air supply method adopts the roof to send Wind, and partitions are set in the roof, which can achieve the effect of uniform air supply in the bus; water distributors are installed above and in front of the filler, which can improve the heat and moisture exchange efficiency of air and water and increase the cooling range.

Contents of the invention

The object of the present invention is to provide a ceiling-mounted evaporative cooling air-conditioning system for a bus, which can effectively improve the air quality in the bus compartment and has low energy consumption for air-conditioning operation.

The technical solution adopted in the present invention is that the ceiling-mounted evaporative cooling air-conditioning system for a bus is composed of a plurality of ceiling-mounted evaporative cooling and cooling units arranged on the bus roof, and the plurality of ceiling-mounted evaporative cooling units are connected with the bus compartment Internal connectivity.

The present invention is also characterized in that:

The ceiling-mounted evaporative cooling unit includes a heat-insulating unit shell, and the side wall of the heat-insulating unit shell is completely opened to form an air inlet; the heat-insulating unit shell is sequentially provided with air filters and multi-directional Water distribution type packing type direct evaporative cooling unit, multi-directional water distribution type packing type direct evaporative cooling unit forms an air outlet flow channel with the side wall of the adjacent thermal insulation unit shell, and the lower part of the air outlet channel corresponds to the thermal insulation unit shell An air outlet is arranged at the bottom, and the air outlet communicates with the inside of the bus compartment through the air supply unit.

The air supply unit is located in the bus compartment and is surrounded by the roof of the bus and a roof parallel to and close to the roof; a plurality of roof air supply outlets are uniformly arranged on the top plate for supplying air to the bus compartment.

A plurality of partitions perpendicular to the top plate are evenly arranged in the air supply unit.

Multi-directional water distribution type packing type direct evaporative cooling unit, including packing, the air inlet side of the packing is provided with a water distributor before the packing, the air outlet side of the packing is provided with a water baffle and a water supply unit in turn, and the packing is provided above the packing There is a circulating water tank under the upper water distributor, filler, water baffle and water supply unit; the water distributor before the filler is connected with the upper water distributor of the filler, and the upper water distributor of the filler is connected with the circulating water tank through the water supply pipe; the top of the circulating water tank A plurality of inverted conical water inlets are evenly opened; the water supply unit is connected with the circulating water tank.

The water distributor before the filling is composed of a water distribution standpipe and a plurality of nozzles evenly arranged on the water distribution standpipe and facing the filling spray; the water distribution standpipe is connected with the water distributor on the filling.

The water distributor on the packing is composed of a spray pipe and a plurality of nozzles evenly arranged on the spray pipe and spraying towards the packing; the spray pipe is respectively connected with the water distribution standpipe and the water supply pipe; the water supply pipe is provided with a water pump.

The water supply unit adopts a water supply pipeline, the lower end of the water supply pipeline extends into the circulating water tank, and a water supply outlet is formed at the lower end; the upper end of the water supply pipeline extends out of the heat preservation unit shell, and a water supply inlet is formed at the upper end.

A drainage device is also arranged in the circulating water tank.

A water supply control valve is arranged on the water supply pipeline.

The beneficial effects of the present invention are:

1) No fan is used in the ceiling-mounted evaporative cooling air-conditioning system for the bus of the present invention. When the bus is moving forward, the fresh wind can flow in through the larger air inlet on the roof of the bus. No fan is needed, saving energy. energy.

2) The improved circulating water tank is used in the ceiling-mounted evaporative cooling air-conditioning system for buses of the present invention, and the water inlet on the circulating water tank is set as an inverted conical shape, so that the water sprayed by the water distribution device can easily enter under the action of gravity. In the circulating water tank, the special inverted conical water inlet setting can reduce the splashing of water when the bus is running.

3) In the ceiling-mounted evaporative cooling air-conditioning system for buses of the present invention, the water distribution device is equipped with a water distributor before the filler, and the water sprayed by the water distributor above the filler will be disturbed by the fresh air during the running of the bus. , which in turn leads to uneven water distribution throughout the filler. The use of the water distributor before the filler can prevent the filler in the lower right corner from being too dry, thereby improving the heat and moisture exchange efficiency.

4) The ceiling type evaporative cooling air-conditioning system for buses of the present invention adopts the roof air supply mode to supply air, and the air that meets the air supply conditions is sent between the roof of the bus and the roof that is arranged near the roof. The boards are evenly spaced, which can achieve the effect of uniform air supply in the bus compartment.

Description of drawings

Fig. 1 is the structural representation of ceiling-mounted evaporative cooling air-conditioning system for bus of the present invention;

Fig. 2 is a sectional view of A-A in Fig. 1 .

In the figure, 1. Air inlet, 2. Air filter, 3. Water distributor before filling, 4. Filling, 5. Water distributor on filling, 6. Circulating water tank, 7. Inverted conical water inlet, 8. Block Water plate, 9. Water supply pipe, 10. Drainage device, 11. Water pump, 12. Thermal insulation unit shell, 13. Air outlet, 14. Top plate, 15. Top plate air supply port, 16. Partition plate, 17. Water supply pipe .

Detailed ways

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

The ceiling type evaporative cooling air-conditioning system for the bus of the present invention has a structure as shown in Fig. In-car connectivity.

The ceiling-mounted evaporative cooling unit includes a heat-insulating unit shell 12, which is made of heat-insulating material, and one side wall of the heat-insulating unit shell 12 is completely opened to form an air inlet 1; inside the heat-insulating unit shell According to the flow direction of the air inlet, an air filter 2 and a multi-directional water distribution type packing type direct evaporative cooling unit are arranged in sequence. An air outlet channel is formed between them, and the bottom of the heat-insulating unit housing 12 corresponding to the lower part of the air outlet channel is provided with an air outlet 13, and the air outlet 13 communicates with the bus compartment through the air supply unit.

The air supply unit is located in the bus compartment, surrounded by the roof of the bus and the top plate 14 that is parallel and arranged near the roof; a plurality of partitions 16 perpendicular to the top plate 14 are evenly arranged in the air supply unit; A plurality of roof air supply ports 15 are provided for supplying air to the bus compartment

The multi-directional water distribution type packing type direct evaporative cooling unit, as shown in Figure 1 and Figure 2, includes a packing 4, the air inlet side of the packing 4 is provided with a pre-filling water distributor 3, and the air outlet side of the packing 4 is sequentially provided with Water baffle 8, water replenishment unit, water distributor 5 on the filler is arranged above the filler 4, circulating water tank 6 is arranged under the filler 4, water baffle 8 and the water replenishment unit, water distributor 3 before the filler and water distributor on the filler The water distributor 5 on the filler is connected to the circulating water tank 6 through the water supply pipe 17, and the water supply pipe 17 is provided with a water pump 11; the top of the circulating water tank 6 is evenly opened with a plurality of inverted conical water inlets 7; the water supply unit and the circulation Water tank 6 communicates.

The water distributor 3 before filling is composed of a water distribution standpipe and a plurality of spray nozzles evenly arranged on the water distribution standpipe and facing the filling 4, and the water distribution standpipe is connected with the water distributor 5 on the filling.

The water distributor 5 on the packing is composed of a spray pipe and a plurality of spray heads evenly arranged on the spray pipe and spraying towards the packing 4, and the spray pipe is respectively connected with the water distribution standpipe and the water supply pipe 17.

The water supply unit adopts a water supply pipeline 9, and the lower end of the water supply pipeline 9 extends into the circulating water tank 6, and a water supply outlet is formed at the lower end; the upper end of the water supply pipeline 9 extends out of the heat-insulation unit casing 12, and a water supply inlet is formed at the upper end; the water supply pipeline 9 There is a water replenishment control valve on it.

A drain device 10 is also arranged in the circulating water tank 6 .

The effect of main parts in the suspended ceiling type evaporative cooling air-conditioning system of the bus of the present invention is as follows:

Air inlet 1: When the bus is moving forward, the fresh wind can flow in through the larger air inlet 1 arranged on the roof of the bus, so there is no need to install a fan, which saves energy.

Multi-directional water distribution type packing type direct evaporative cooling unit: the upper part of the internal circulating water tank 6 is provided with an inverted conical water inlet 7, and the water sprayed by the front water distributor 3 and the upper water distributor 5 under the action of gravity It is easy to enter the circulating water tank 6, and the setting of the special inverted conical water inlet 7 can reduce the splashing of water during the running of the bus; among them, the water distributor 3 before filling is newly added, which is due to: public When the car is running, the water sprayed by the water distributor 5 on the filling is easily disturbed by the fresh air, which leads to uneven water distribution of the entire filling 4. The setting of the water distributor 3 before the filling can effectively prevent the filling 4 in the lower right corner from Too dry, effectively improving the heat transfer effect.

Air supply unit: The space in the bus is effectively used to set the air supply unit. The air supply unit is evenly separated by partitions 16, which can make the air flow more uniform, and then achieve the purpose of uniform air supply in the bus compartment.

The working process of the suspended ceiling type evaporative cooling air-conditioning system for the bus of the present invention is specifically as follows:

(1) The working process of the wind system is as follows:

When the bus is running, the outside air enters the ceiling-type evaporative cooling unit through the air inlet 1, and is filtered and purified by the air filter 2 to form clean air;

The clean air flows into the filler 4 in the multi-directional water distribution type packing type direct evaporative cooling unit. The water distributor 3 before the filler and the water distributor 5 on the filler can spray water to the filler 4 together, and form water on the surface of the filler 4. Membrane, clean air and water film exchange heat and moisture to form cold wind;

The cold wind is conveyed through the air outlet runner, sent into the air supply unit provided in the bus compartment by the air outlet 13, and finally sent into the bus compartment by the top plate air supply port 15.

(2) The working process of the water system is as follows:

The circulating water in the circulating water tank 6 of the ceiling-mounted evaporative cooling and cooling unit is transported to the water distributor 5 on the filler and the water distributor 3 before the filler through the water supply pipe 17 under the action of the water pump 11;

The water distributor 5 on the filler and the water distributor 3 before the filler spray the circulating water onto the filler 4, and form a water film on the filler 4, and the air flowing through the filler 4 exchanges heat and moisture with the water film;

The excess water on the filler 4 falls under the action of gravity (the recirculating water tank 6 is provided with an inverted conical water inlet 7), and flows into the recirculating water tank 6 through the inverted conical water inlet 7, reciprocating.

The ceiling-mounted evaporative cooling air-conditioning system for buses of the present invention is different from the existing air-conditioning system for buses, and has two advantages compared with it: saving power consumption and improving air quality in the vehicle. After applying the ceiling type evaporative cooling air-conditioning system for buses of the present invention to the buses, the air quality in the buses can be effectively improved.

Claims (6)

1. bus ceiling mounting type Evaporative Cooling Air-conditioning System, which is characterized in that more in bus top by being set to A ceiling mounting type evaporates the unit composition that cools, and the multiple ceiling mounting type evaporates to be connected in cool unit and bus compartment It is logical；

The ceiling mounting type evaporates the unit that cools, and includes heat preserving type machine unit shell (12), the heat preserving type machine unit shell (12) one side wall opens wide form air inlet (1) completely；Enter rear flow direction according to air in the heat preserving type machine unit shell It is disposed with air filter (2) and multi-direction cloth water type material filling type direct evaporating-cooling unit, the multi-direction cloth water type Between material filling type direct evaporating-cooling unit and the side wall of the heat preserving type machine unit shell (12) closed on formed outlet air runner, it is described go out Corresponding heat preserving type machine unit shell (12) bottom in distinguished and admirable road lower part is provided with air outlet (13), and the air outlet (13) passes through air-supply It is connected in unit and bus compartment；

The blowing unit is set in bus compartment, the roof by bus and the top parallel and close to roof setting Plate (14) surrounds；Multiple top plate air outlets (15) are evenly arranged on the top plate (14), multiple top plate air outlets (15) are used for It blows into bus compartment；Multiple partition boards (16) perpendicular to top plate (14) are evenly arranged in the blowing unit；

The multi-direction cloth water type material filling type direct evaporating-cooling unit, includes filler (4), the inlet side of the filler (4) It is provided with water distributor (3) before filler, the air side of the filler (4) is disposed with water fender (8), moisturizing unit, described to fill out It is provided with filler upper water distributor (5) above material (4), is provided with below the filler (4), water fender (8) and moisturizing unit Cyclic water tank (6)；

Water distributor (3) is connect with filler upper water distributor (5) before the filler, and the filler upper water distributor (5) passes through feed pipe (17) it is connect with cyclic water tank (6)；Multiple inverted conical water inlets (7) are uniformly provided at the top of the cyclic water tank (6)；Institute Moisturizing unit is stated to be connected to cyclic water tank (6).

2. bus according to claim 1 ceiling mounting type Evaporative Cooling Air-conditioning System, which is characterized in that the filler Preceding water distributor (3) is made of water distribution standpipe and multiple nozzles for being uniformly arranged on water distribution standpipe and being sprayed towards filler (4)；

The water distribution standpipe is connect with filler upper water distributor (5).

3. bus according to claim 1 or 2 ceiling mounting type Evaporative Cooling Air-conditioning System, which is characterized in that described Filler upper water distributor (5) is made of spray tube and multiple nozzles for being uniformly arranged on spray tube and being sprayed towards filler (4)；

The spray tube is connect with water distribution standpipe, feed pipe (17) respectively；

It is provided with water pump (11) on the feed pipe (17).

4. bus according to claim 1 ceiling mounting type Evaporative Cooling Air-conditioning System, which is characterized in that the moisturizing Unit uses moisturizing pipeline (9), the lower end of the moisturizing pipeline (9) to stretch into cyclic water tank (6), and forms moisturizing in lower end and go out Mouthful；

Heat preserving type machine unit shell (12) is stretched out in the upper end of the moisturizing pipeline (9), and forms moisturizing entrance in upper end.

5. bus according to claim 4 ceiling mounting type Evaporative Cooling Air-conditioning System, which is characterized in that the cycle It is additionally provided with water draw-off (10) in water tank (6).

6. bus according to claim 4 ceiling mounting type Evaporative Cooling Air-conditioning System, which is characterized in that the moisturizing Pipeline is provided with moisturizing control valve on (9).