CN113212098A - Cab meeting thermal comfort and pressurization requirements and control method thereof - Google Patents
Cab meeting thermal comfort and pressurization requirements and control method thereof Download PDFInfo
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- CN113212098A CN113212098A CN202110440569.XA CN202110440569A CN113212098A CN 113212098 A CN113212098 A CN 113212098A CN 202110440569 A CN202110440569 A CN 202110440569A CN 113212098 A CN113212098 A CN 113212098A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00785—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by the detection of humidity or frost
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0608—Filter arrangements in the air stream
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to the technical field of engineering machinery, in particular to a cab meeting thermal comfort and pressurization requirements and a control method thereof, wherein the cab comprises a control system, a fresh air system and an air conditioning system, wherein the fresh air system and the air conditioning system are connected with the control system; the new trend system includes intake stack I and air-out pipeline I, intake stack I goes out pipeline I and driver's cabin intercommunication, be provided with the heat exchanger between intake stack I and the air-out pipeline I, be provided with the circulating line between the air intake of driver's cabin and the air outlet, be provided with booster compressor III on the circulating line, air conditioning system includes intake stack II and return air duct, intake stack II and return air duct's one end all is linked together with the driver's cabin, intake stack II is provided with air brake III, booster compressor IV and alternating temperature device, return air duct's the other end is linked together with intake stack II. The invention can automatically adjust the pressure, humidity and temperature in the cab so as to meet the requirements of pressurizing the pressure in the cab and the thermal comfort of human bodies.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a cab meeting thermal comfort and pressurization requirements and a control method thereof.
Background
Engineering machinery cabs are often in environments with high noise, large dust and outdoor environment, and the condition that the engineering machinery cabs are in such environments for a long time is very unfavorable for the physical health of drivers. Pressurized cabs are now commonly used to address this problem. The inside pressure ratio of pressure boost driver's cabin is outside big, effectively prevents outside dust to the influence of driver's cabin internal environment, and the temperature and the humidity of the inside of driver's cabin of rethread driver's cabin self-contained air conditioning system are adjusted, improve thermal comfort. However, the supercharging process of such a supercharged cab is relatively long, and the temperature and humidity regulation capability is not strong.
Therefore, there is a need for improvements in the prior art.
Disclosure of Invention
In order to overcome the defects in the prior art, the cab and the control method thereof have the advantages that the temperature and humidity adjusting capacity is high, the adjusting speed is high, and the requirements on thermal comfort and pressurization are met.
In order to solve the technical problems, the invention adopts the technical scheme that:
a cab meeting the requirements of thermal comfort and pressurization comprises a cab, a control system, a fresh air system and an air conditioning system, wherein the fresh air system and the air conditioning system are connected with the control system;
the fresh air system comprises an air inlet pipeline I and an air outlet pipeline I, the air inlet pipeline I is communicated with an air inlet of the cab, the air outlet pipeline I is communicated with an air outlet of the cab, and a heat exchanger is arranged between the air inlet pipeline I and the air outlet pipeline I; a circulating pipeline is arranged between the air inlet and the air outlet of the cab, and a supercharger III is arranged on the circulating pipeline;
air conditioning system includes intake stack II and return air duct, intake stack II and return air duct's one end all is linked together with the driver's cabin, intake stack II has set gradually air brake III, booster compressor IV and alternating temperature device from far away to near apart from the driver's cabin, return air duct's the other end is linked together with intake stack II.
Furthermore, be provided with booster I on the intake stack I, be provided with air brake I on the intake stack of I front end of booster.
Furthermore, be provided with booster compressor II on the air-out pipeline I, be provided with air brake II on the air-out pipeline I of II rear ends of booster compressor.
Furthermore, an air inlet pipeline II at the front end of the air brake III is provided with a dust filter screen and a smell filter screen.
Furthermore, an odor filter screen is arranged on a circulating pipeline at the front end of the supercharger III.
Furthermore, a pressure sensor, a temperature sensor and a humidity sensor are arranged in the cab.
Furthermore, a moisture filter screen is arranged on an air inlet pipeline II between the supercharger IV and the temperature changing device.
A method of controlling a cab to meet thermal comfort and boost requirements, comprising:
s1, a fresh air control method:
s11, opening the air brake I and the air brake II, and operating the supercharger I and the supercharger II at full power;
s12, when the operation of the supercharger I and the supercharger II reaches the set time t1, the supercharger I, the supercharger II and the supercharger IV are opened, the supercharger III is closed, and the air brake I, the air brake II and the air brake III are opened;
s13, detecting the air pressure of the cab by a pressure sensor, and when the pressure is larger than the maximum value of a set pressure range, reducing the rotating speed of the supercharger I and the supercharger IV and increasing the rotating speed of the supercharger II; when the pressure is smaller than the minimum value of the set range, the rotating speeds of the supercharger I and the supercharger IV are increased, the rotating speed of the supercharger II is reduced, and when the pressure is in the set range, the operation S14 is carried out;
s14, opening the air brake I, the air brake II and the air brake III, keeping the rotating speed of the supercharger I, the supercharger II and the supercharger IV, closing the supercharger III,
s15, when the opening time of the supercharger I reaches a set time t2, the supercharger III and the supercharger IV are opened, the supercharger I and the supercharger II are closed, and the air brake I and the air brake II are closed; when the opening time of the supercharger III reaches the set time t3, the operation is restarted to S14;
s2, a temperature control method:
s21, detecting the temperature of the cab by a temperature sensor, and when the temperature is higher than the upper limit of the set temperature range, keeping the rotating speed of the supercharger III and reducing the rotating speed of the supercharger IV;
s22, when the temperature is lower than the lower limit of the set temperature range, keeping the rotating speed of the supercharger III and reducing and increasing the rotating speed of the supercharger IV;
s23, when the temperature is in the set temperature range, keeping the rotation speed of the supercharger III and the supercharger IV;
s3, humidity control method:
s31, detecting the humidity of the cab by a humidity sensor, and closing a moisture filter screen when the humidity is higher than the upper limit of a set humidity range;
s32, when the humidity is lower than the upper limit of the set humidity range, the moisture filter screen is opened;
and S33, when the humidity is within the set humidity range, not adjusting.
Further, the pressure range is set to be 50Pa to 100Pa, the temperature range is set to be 16 ℃ to 25 ℃, and the humidity range is set to be 25% to 50%.
Further, supercharger i sets time t1 to 40s, supercharger iii sets time t3 to 3min, and supercharger i sets time t2 to 3 min.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention prevents external dust from entering the cab by adjusting the interior of the cab to positive pressure.
2. The invention is provided with an air conditioning system which can adjust the temperature and the humidity in the cab and improve the thermal comfort of the driver.
3. The fresh air system is divided into an external circulation system and an internal circulation system, and the adjustment efficiency is improved by matching the external circulation system with the internal circulation system.
Drawings
The following will explain embodiments of the present invention in further detail through the accompanying drawings.
FIG. 1 is a schematic view of a fresh air system;
FIG. 2 is a schematic diagram of an air conditioning system;
fig. 3 is a flowchart of the operation of the embodiment of the present invention.
In the figure: 1-cab, 2-air inlet pipeline I, 3-air outlet pipeline I, 4-heat exchanger, 5-circulating pipeline, 6-supercharger III, 7-air inlet pipeline II, 8-air return pipeline, 9-air brake III, 10-supercharger IV, 11-temperature changing device, 12-supercharger I, 13-air brake I, 14-supercharger II, 15-air brake II, 16-dust filter screen, 17-odor filter screen and 18-moisture filter screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 3, a cab meeting thermal comfort and pressurization requirements comprises a cab 1, a control system, a fresh air system and an air conditioning system, wherein the fresh air system and the air conditioning system are both connected with the control system;
the fresh air system comprises an air inlet pipeline I2 and an air outlet pipeline I3, the air inlet pipeline I2 is communicated with an air inlet of the cab 1, the air outlet pipeline I3 is communicated with an air outlet of the cab, and a heat exchanger 4 is arranged between the air inlet pipeline I2 and the air outlet pipeline I3; a circulating pipeline 5 is arranged between an air inlet and an air outlet of the cab 1, and a supercharger III 6 is arranged on the circulating pipeline 5;
air conditioning system includes intake stack II 7 and return air duct 8, intake stack II 7 and return air duct 8's one end all is linked together with driver's cabin 1, intake stack II 7 has set gradually air brake III 9, booster IV 10 and alternating temperature device 11 apart from driver's cabin 1 from far away to near, return air duct 8's the other end is linked together with intake stack II 7.
A supercharger I12 is arranged on the air inlet pipeline I2, and an air brake I13 is arranged on the air inlet pipeline I1 at the front end of the supercharger I12; a supercharger II 14 is arranged on the air outlet pipeline I3, and an air brake II 15 is arranged on the air outlet pipeline I3 at the rear end of the supercharger II 14; a dust filter screen 16 and a smell filter screen 17 are arranged on the air inlet pipeline II 3 at the front end of the air brake III 9; a smell filter screen 17 is arranged on the circulating pipeline 5 at the front end of the supercharger III 6; a pressure sensor, a temperature sensor and a humidity sensor are arranged in the cab 1; a moisture filter screen 18 is arranged on the air inlet pipeline II 3 between the supercharger IV 10 and the temperature changing device 11.
The temperature changing device, the sensor, the supercharger, the air brake and the moisture filter screen are all controlled by a control system.
Both the front and rear ends are referred to herein as the position of the component relative to the direction of air flow within the duct.
A method of controlling a cab to meet thermal comfort and boost requirements, comprising:
s1, a fresh air control method:
s11, opening the air brake I13 and the air brake II 15, and operating the supercharger I12 and the supercharger II 14 at full power;
s12, when the operation of the supercharger I12 reaches the set time t1, the supercharger I12, the supercharger II 14 and the supercharger IV 10 are opened, the supercharger III 6 is closed, and the air brake I13, the air brake II 15 and the air brake III 9 are opened;
the value of t1 can be set according to practical situations, and t1 is 40s in the embodiment;
s13, detecting the air pressure of the cab by a pressure sensor, and when the pressure is larger than the maximum value of the set pressure range, reducing the rotating speed of the supercharger I12 and the supercharger IV 10 and increasing the rotating speed of the supercharger II 14; when the pressure is smaller than the minimum value of the set range, the rotating speed of the supercharger I12 and the supercharger IV 10 is increased, the rotating speed of the supercharger II 14 is reduced, and when the pressure is in the set range, S14 is operated;
the pressure range can be set according to actual needs, and the pressure range of the embodiment is 50 Pa-100 Pa;
s14, opening an air brake I13, an air brake II 15 and an air brake III 9, keeping the rotating speed of a supercharger I12, a supercharger II 14 and a supercharger IV 10, and closing the supercharger III;
s15, when the opening time of the supercharger I12 reaches a set time t2, the supercharger III 6 and the supercharger IV 10 are opened, the supercharger I12 and the supercharger II 14 are closed, and the air brake I13 and the air brake II 15 are closed;
the value of t2 can be set according to practical situation, and the time t2 is set to 3min in the embodiment;
s16, when the opening time of the supercharger III 6 reaches the set time t3, the operation is restarted S14;
the value of T3 can be set according to practical situations, and the time T3 is set to 3min in the embodiment.
S2, a temperature control method:
s21, detecting the temperature of the cab by a temperature sensor, keeping the rotating speed of the supercharger III 6 and reducing the rotating speed of the supercharger IV 10 when the temperature is higher than the upper limit of the set temperature range;
s22, when the temperature is lower than the lower limit of the set temperature range, the rotating speed of the supercharger III 6 is kept, and the rotating speed of the supercharger IV 10 is reduced and increased;
s23, when the temperature is in the set temperature range, keeping the rotation speed of the superchargers III 6 and IV 10;
the value of the temperature range can be set according to the actual situation, and the temperature range is set to be 16-25 ℃ in the embodiment.
S3, humidity control method:
s31, detecting the humidity of the cab by a humidity sensor, and closing the moisture filter screen 18 when the humidity is higher than the upper limit of the set humidity range;
s32, when the humidity is lower than the upper limit of the set humidity range, the moisture filter screen is opened;
and S33, when the humidity is within the set humidity range, not adjusting.
The value of the humidity range can be set according to actual conditions, and the humidity range is set to be 25% -50% in the embodiment.
The control system automatically regulates and controls the superchargers, the air brakes and the openable moisture filter screens in the cab through the pressure sensor, the temperature sensor and the humidity sensor so as to meet the requirements of supercharging the pressure of the cab and the thermal comfort of a human body.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (10)
1. A cab meeting thermal comfort and supercharging requirements, comprising a cab (1), characterized in that: the fresh air system and the air conditioning system are connected with the control system;
the fresh air system comprises an air inlet pipeline I (2) and an air outlet pipeline I (3), the air inlet pipeline I (2) is communicated with an air inlet of the cab (1), the air outlet pipeline I (3) is communicated with an air outlet of the cab, and a heat exchanger (4) is arranged between the air inlet pipeline I (2) and the air outlet pipeline I (3); a circulating pipeline (5) is arranged between an air inlet and an air outlet of the cab (1), and a supercharger III (6) is arranged on the circulating pipeline (5);
air conditioning system includes intake stack II (7) and return air duct (8), the one end of intake stack II (7) and return air duct (8) all is linked together with driver's cabin (1), intake stack II (7) are apart from driver's cabin (1) by far away to near having set gradually air brake III (9), booster compressor IV (10) and alternating temperature device (11), the other end and intake stack II (7) of return air duct (8) are linked together.
2. A cab for a vehicle meeting thermal comfort and boost requirements as set forth in claim 1, wherein: be provided with booster I (12) on intake stack I (2), be provided with air brake I (13) on intake stack I (1) of booster I (12) front end.
3. A cab for a vehicle meeting thermal comfort and boost requirements as set forth in claim 1, wherein: be provided with booster compressor II (14) on air-out pipeline I (3), be provided with air brake II (15) on air-out pipeline I (3) at booster compressor II (14) rear end.
4. A cab for a vehicle meeting thermal comfort and boost requirements as set forth in claim 1, wherein: and a dust filter screen (16) and an odor filter screen (17) are arranged on the air inlet pipeline II (3) at the front end of the air brake III (9).
5. A cab for a vehicle meeting thermal comfort and boost requirements as set forth in claim 1, wherein: and a smell filter screen (17) is arranged on the circulating pipeline (5) at the front end of the supercharger III (6).
6. A cab for a vehicle meeting thermal comfort and boost requirements as set forth in claim 1, wherein: a pressure sensor, a temperature sensor and a humidity sensor are arranged in the cab (1).
7. A cab for a vehicle meeting thermal comfort and boost requirements as set forth in claim 1, wherein: a moisture filter screen (18) is arranged on the air inlet pipeline II (3) between the supercharger IV (10) and the temperature changing device (11).
8. A cab control method meeting thermal comfort and pressurization requirements is characterized in that: comprises that
S1, a fresh air control method:
s11, opening the air brake I (13) and the air brake II (15), and operating the supercharger I (12) and the supercharger II (14) at full power;
s12, when the operation of the supercharger I (12) and the supercharger II (14) reaches the set time t1, the supercharger I (12), the supercharger II (14) and the supercharger IV (10) are opened, the supercharger III (6) is closed, and the air brake I (13), the air brake II (15) and the air brake III (9) are opened;
s13, detecting the air pressure of the cab by a pressure sensor, and when the pressure is larger than the maximum value of a set pressure range, reducing the rotating speed of a supercharger I (12) and a supercharger IV (10), and increasing the rotating speed of a supercharger II (14); when the pressure is smaller than the minimum value of the set range, increasing the rotating speed of the supercharger I (12) and the supercharger IV (10), reducing the rotating speed of the supercharger II (14), and when the pressure is in the set range, operating S14;
s14, opening an air brake I (13), an air brake II (15) and an air brake III (9), keeping the rotating speed of a supercharger I (12), a supercharger II (14) and a supercharger IV (10), and closing a supercharger III;
s15, when the opening time of the supercharger I (12) reaches the set time t2, the supercharger III (6) and the supercharger IV (10) are opened, the supercharger I (12) and the supercharger II (14) are closed, and the air brake I (13) and the air brake II (15) are closed;
s16, when the opening time of the supercharger III (6) reaches the set time t3, the operation is restarted S14;
s2, a temperature control method:
s21, detecting the temperature of the cab by a temperature sensor, and when the temperature is higher than the upper limit of a set temperature range, keeping the rotating speed of the supercharger III (6) and reducing the rotating speed of the supercharger IV (10);
s22, when the temperature is lower than the lower limit of the set temperature range, keeping the rotating speed of the supercharger III (6), and reducing and increasing the rotating speed of the supercharger IV (10);
s23, when the temperature is in the set temperature range, the rotation speed of the superchargers III (6) and IV (10) is kept;
s3, humidity control method:
s31, detecting the humidity of the cab by a humidity sensor, and closing the moisture filter screen (18) when the humidity is higher than the upper limit of a set humidity range;
s32, when the humidity is lower than the upper limit of the set humidity range, the moisture filter screen (18) is opened;
and S33, when the humidity is within the set humidity range, not adjusting.
9. A cab control method for satisfying thermal comfort and supercharging requirements according to claim 8, characterized in that: the pressure range is set to be 50 Pa-100 Pa, the temperature range is set to be 16-25 ℃, and the humidity range is set to be 25-50%.
10. A cab control method for satisfying thermal comfort and supercharging requirements according to claim 8, characterized in that: supercharger I has a set time t1 of 40s, t2 of 3min, and supercharger III has a set time t3 of 3 min.
Priority Applications (1)
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|---|---|---|---|
| CN202110440569.XA CN113212098B (en) | 2021-04-23 | 2021-04-23 | Cab meeting thermal comfort degree and supercharging requirements and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110440569.XA CN113212098B (en) | 2021-04-23 | 2021-04-23 | Cab meeting thermal comfort degree and supercharging requirements and control method thereof |
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| CN113212098B CN113212098B (en) | 2022-11-01 |
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