RU2247035C1 - Vehicle cab air conditioning system - Google Patents

Abstract

FIELD: mechanical engineering; transport engineering.

SUBSTANCE: invention relates to air conditioning systems designed to create comfortable microclimate in vehicle cabs. Proposed air conditioning system contains air intake, fan connected with air intake by pipeline, reservoir with water connected to pipeline at outlet of fan, electromagnetic valve with filter installed at its outlet mounted at outlet of water reservoir, heat exchanger connected with fan outlet by pipeline with outlet branch pipes installed at outlet of heat exchanger, and temperature transmitter installed in vehicle cab. Novelty is that system is provided with coarse filter installed at inlet of air intake, fine filter installed at inlet of heat exchanger and equipped with drain branch pipe, analyzing and control unit installed in vehicle can and connected with heat exchanger, electromagnetic valve installed at outlet of water reservoir, temperature transmitter and fan. Humidity pickup installed in cab and with analyzing and control unit, vessel with aromatic substances connected with analyzing and control unit connected with input of heat exchanger and electromagnetic valve installed at outlet of aromatic substance vessel and connected with analyzing and control unit and heater installed at outlet of heat exchanger are introduced additionally into system.

EFFECT: improved efficiency of heat and humidity treatment of air getting into vehicle cab.

1 dwg

Description

The proposed invention relates to the field of cooling systems and can be used to cool cabs and units of vehicles.

Known as the closest analogue is a portable air cooler for cooling cabins, compartments and aircraft equipment, comprising an air intake, a fan connected to it via a pipe, a tank of water connected to a pipe at the outlet of the fan, and an electromagnetic valve installed on its output with filter outlet, connected to the fan outlet, a heat exchanger installed at the outlet of the heat exchanger, an outlet pipe connected to an electromagnetic the temperature sensor (ed. certificate of the USSR No. 219398, IPC B 64 D 13/08, publ. 30.05.68, Bull. No. 18).

The disadvantage of this device is the lack of control of the cooled air, in addition, its work does not take into account the humidity of the cooled air.

The technical task of the proposed device is to improve the quality of the thermo-humid treatment of the air entering the cabs of vehicles.

The task is achieved in that the air conditioning system of the cabs of the vehicles contains an air intake connected to it by a fan, connected to the pipeline at the outlet of the fan, a tank of water, at the outlet of which there is an electromagnetic valve with a filter installed at its output, connected to the outlet of the fan , by means of a pipeline, a heat exchanger, at the outlet of which output nozzles are installed, a temperature sensor installed in the vehicle cabin, A coarse filter installed at the inlet of the air intake, a fine filter installed at the inlet of the heat exchanger, equipped with a drain pipe, an analysis and control unit installed in the vehicle cabin, connected to a heat exchanger, an electromagnetic valve installed at the outlet of the water tank, a temperature sensor and a humidity sensor installed in the vehicle cabin, connected to the analysis and control unit, connected to the heat exchanger inlet, a container with aromatic and the electromagnetic valve installed at the outlet of it, connected to the analysis and control unit, and a heater installed at the outlet of the heat exchanger.

The proposed invention is illustrated using the schemes shown in the drawing.

In the drawing, the following notation:

- air intake 1, made in the form of a conical bell,

- a coarse filter 2 installed at the inlet of the air intake 1,

- fan 3,

- capacity 4 with water,

- electromagnetic valve 5,

- installed on the output of the electromagnetic valve 5 filter 6,

- a fine filter 7 equipped with a drain pipe 8,

- pipeline 9,

- electromagnetic valve 10,

- containers 11 with flavoring substances,

- outlet pipes 12,

- temperature sensor 13 installed in the vehicle cabin,

- humidity sensor 14 installed in the vehicle cabin,

- pressure sensor 15 installed in the vehicle cabin,

- analysis and control unit 16 installed in the vehicle cabin,

- heat exchanger 17,

- heater 18,

- valve 19.

The air conditioning system of the cabs is as follows.

Before the vehicle starts moving, the temperature, humidity and pressure sensors 13 transmit signals to the analysis and control unit 16 corresponding to the temperature, humidity and pressure in the vehicle cabin, the incoming signals are analyzed by comparison. The basis for comparison is taken data obtained scientifically and experimentally after research, and / or data established by the vehicle operator. These data are entered in block 16 analysis and management as a criterion.

Further operation of the system depends on the readings of the sensors 13, 14 and 15. For example, if the data received from the temperature sensor 13 exceeds the data taken as a basis, and when the data received from the humidity sensor 14 and pressure 15 are less than or equal to the data, taken as a basis, the analysis and control unit 16 generates and transmits commands to turn on the fan 3, the heat exchanger 17 and the opening of the electromagnetic valve 5.

When the vehicle is moving, an incoming air stream from the outside space enters the air intake 1. At the entrance to the air intake 1, the primary filter 2 is used for primary cleaning of air from dust and harmful impurities. The fan 3 provides an uninterrupted supply of air from the outside space into the pipeline 9, which is especially necessary at low vehicle speeds and under other conditions under which the volume of air entering the pipeline 9 is small. Water from the tank 4, passing through the filter 6, is sucked into the pipeline 9 and, spraying in the incoming air lowers its temperature and moisturizes it. Further, through the pipe 9, the initially cooled air enters the fine filter 7, where the air is cleaned of small particles of various impurities contained in the air. In addition, fine particles of water are precipitated in the fine filter 7. The precipitated water, mixed with small particles of various impurities, is discharged from the fine filter 7 through the drain pipe 8. Then, through the pipe 9, the cooled air enters the heat exchanger 17, where additional air cooling is carried out if necessary. The heat exchanger 17 can be made in the form of a metal casing, inside which tubes with a cooling fluid flowing through them, for example water or liquid nitrogen, are placed.

When the vehicle is operating in winter, the operator manually opens the valves 19 of the heater 18, after which the heated liquid begins to circulate through the pipes 18 in the heater 18. As the heater 18, a metal casing may be used, inside which heat-conducting tubes of the vehicle cooling system pass. The air falling through the pipe 9 to the heater 18 is heated and after that it enters the outlet pipes 12, and from them into the vehicle cabin. If the data received from the sensors 13 temperature, 14 humidity and 15 pressure on the block 16 analysis and control, have an unacceptable excess over the data taken as a basis, then the block 16 analysis and control sends commands to the necessary inclusion of the fan 3, heat exchanger 17 and the electromagnetic valve 5 in accordance with the inclusions described above.

From the tank 11, flavoring substances are sucked into the pipe 9, spraying in the incoming air. The amount of aromatic substances entering the pipeline 9 is controlled by an electromagnetic valve 10, which is opened by the command of the analysis and control unit 16. The flow rate of flavoring substances is entered by the vehicle operator into the analysis and control unit 16 before the start of movement. Then the air through the pipeline 9 enters the outlet pipes 12, and from them into the vehicle cabin.

Thus, by introducing an analysis and control unit, humidity and pressure sensors installed in the vehicle cabin, coarse and fine filters, a container with flavoring substances and a heater, the quality of the thermo-humid treatment of the air entering the vehicle cabs is introduced into the air conditioning system of vehicle cabs funds.

Claims (1)

A vehicle cab air conditioning system comprising an air intake, a fan connected to it via a pipe, a water tank connected to a pipe at the fan outlet, an electromagnetic valve with a filter installed at its outlet, connected to a fan outlet by means of a heat exchanger pipe, at the exit from which output nozzles are installed, a temperature sensor installed in the vehicle cabin, characterized in that a coarse filter at the inlet of the air intake, a fine filter installed at the inlet of the heat exchanger, equipped with a drain pipe, an analysis and control unit installed in the vehicle cabin, connected to a heat exchanger, an electromagnetic valve installed at the outlet of the tank with water, a temperature sensor and a humidity sensor installed in the vehicle cabin, connected to an analysis and control unit, a container with aromatic substances connected to the heat exchanger inlet you and mounted at its exit a solenoid valve connected to the analysis and control unit mounted on the outlet of the heater coil.