WO2014189394A1 - Air intake of mobile pollution indicator - Google Patents
Air intake of mobile pollution indicator Download PDFInfo
- Publication number
- WO2014189394A1 WO2014189394A1 PCT/PL2014/000037 PL2014000037W WO2014189394A1 WO 2014189394 A1 WO2014189394 A1 WO 2014189394A1 PL 2014000037 W PL2014000037 W PL 2014000037W WO 2014189394 A1 WO2014189394 A1 WO 2014189394A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- valve
- air inlet
- detector
- flow resistance
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
Definitions
- the subject of the invention is an air intake of a mobile pollution indicator, installed in a vehicle.
- Air intakes for mobile pollution indicators are located at their air inlets.
- the known air intake has a labyrinth component in the form of a so-called U - tube.
- the intake is provided with a so-called strainer with very small mesh, situated on the way of air flow to the indicator.
- a solution in the form of a cyclone is used, where air is put into rotary motion (in a worm) and aerosol drops out into the air in a counter-current.
- the solution in form of a U-tube has a number of disadvantages, namely: only large aerosol will drop out in the intermediate part; high aerosol density at the inlet will be correctly stopped only during the initial protective phase, and later it will move to the indicator - this method does not protect the indicator, e.g. while the vehicle is being washed using a pressure washer.
- the solution in the form of a cyclone requires high air flow - over 2.5 1/min; moreover, it does not protect against fine dust, which leads to indicator damage.
- the purpose of the invention was to develop such an air intake solution that would be free from the disadvantages listed above.
- the air intake of a mobile pollution indicator comprising air inlet and outlet and filter gauze, is characterised by the fact that the filter gauze is located at the air inlet, which is fixed onto the vehicle side.
- a controlled valve in the form of a cylinder and piston, with both elements made of inactive, self-lubricating material.
- a flow resistance (differential pressure) detector is connected to the air inlet and outlet to and from the valve, and a moisture and temperature sensor is installed.
- a detector, sensors and valve are all connected to a microprocessor control system.
- the discussed solution guarantees failure-free and lasting equipment operation as well as reliable results of analyses. This is due to the location of the inlet for the analysed air on the vehicle side, meaning that the air is drawn from outside the vehicle.
- the employed valve configuration with a flow resistance detector and connection to a control device allows for periodic self-cleaning, which involves the following: as soon as high resistance of flow through intakes is observed on the filtering element (gauze), the indicator then activates the so-called backflow at high yield, i.e. ca. 4 1/ min. Blowdown begins by closing the valve in the intake to allow air compression; then the valve is opened - which causes an abrupt pressure jump. After that, all impurities accumulated on the gauze are blown out of the vehicle.
- the installed moisture and temperature sensor allows for stabilisation of these parameters at the assumed level. In case of excessive moisture, a signal is transmitted to the indicator to initiate blowdown.
- the air intake configuration according to the invention, has been shown as an example of implementation in the drawing, which schematically presents its structure.
- the inlet head 2 containing the filter gauze 3 is fixed onto the vehicle side 1. Then, the air inlet is connected to a pneumatic valve 4, in the form of a cylinder 5 and piston 6, both made of self-lubricating, inactive (i.e. not releasing any substances) material, called "tecapeak".
- a flow resistance detector 9 measuring differential pressure is connected to the air inlet 7 and outlet 8 to and from the valve. Moreover, a moisture and temperature sensor 1 is installed.
- the valve 4, sensor 9 and detector 10 are all connected to a microprocessor control system 1_1.
- the air outlet 8 from the intake is connected to the indicator inlet 12, which is also connected to the control system.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Sampling And Sample Adjustment (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The discussed solution guarantees failure-free and lasting equipment operation and reliable results of analyses. The analysed air is drawn from outside the vehicle. The employed valve configuration with flow resistance detector and connection with a control device allows for periodic self-cleaning of the system, especially of the filtering element, by way of using a back blowdown at high yield. According to the invention, the air intake of a mobile pollution indicator is characterised by the following: a filter gauze (3) is located at the air inlet, which is fixed onto the vehicle side (1), while in the path of the air, there is a controlled pneumatic valve (4) in the form of a cylinder (5) and piston (6), both made of self-lubricating, inactive material. Moreover, it comprises a moisture and temperature sensor (10), and the flow resistance detector (9) (differential pressure) is connected to the air inlet (7) and outlet (8) to and from valve (4). The sensor, detector and valve are all connected to a microprocessor control system (11).
Description
Air intake of mobile pollution indicator
The subject of the invention is an air intake of a mobile pollution indicator, installed in a vehicle.
Air intakes for mobile pollution indicators are located at their air inlets.
The known air intake has a labyrinth component in the form of a so-called U - tube.
In another known solution, the intake is provided with a so-called strainer with very small mesh, situated on the way of air flow to the indicator.
Sometimes, a solution in the form of a cyclone is used, where air is put into rotary motion (in a worm) and aerosol drops out into the air in a counter-current.
The solution in form of a U-tube has a number of disadvantages, namely: only large aerosol will drop out in the intermediate part; high aerosol density at the inlet will be correctly stopped only during the initial protective phase, and later it will move to the indicator - this method does not protect the indicator, e.g. while the vehicle is being washed using a pressure washer.
The disadvantage of. the solution in the form of gauze at the inlet is that solid particles of aerosol accumulate on the gauze, which may affect the measurement result, and in case of indicator operation in air characterised by quite high dustiness, the flow resistance grows, which may significantly reduce the volume of air drawn by the indicator.
The solution in the form of a cyclone requires high air flow - over 2.5 1/min; moreover, it does not protect against fine dust, which leads to indicator damage.
The purpose of the invention was to develop such an air intake solution that would be free from the disadvantages listed above.
The air intake of a mobile pollution indicator, according to the invention, comprising air inlet and outlet and filter gauze, is characterised by the fact that the filter gauze is located at the air inlet, which is fixed onto the vehicle side. In the path of the air, there is a controlled valve in the form of a cylinder and piston, with both elements made of inactive, self-lubricating material. A flow resistance (differential pressure) detector is connected to the air inlet and outlet to and from the valve, and a moisture and temperature sensor is installed. A detector, sensors and valve are all connected to a microprocessor control system.
The discussed solution guarantees failure-free and lasting equipment operation as well as reliable results of analyses. This is due to the location of the inlet for the analysed air on the vehicle side, meaning that the air is drawn from outside the vehicle. The employed valve configuration with a flow resistance detector and connection to a control device allows for periodic self-cleaning, which involves the following: as soon as high resistance of flow through intakes is observed on the filtering element (gauze), the indicator then activates the so-called backflow at high yield, i.e. ca. 4 1/ min. Blowdown begins by closing the valve in the intake to allow air compression; then the valve is opened - which causes an abrupt pressure jump. After that, all impurities accumulated on the gauze are blown out of the vehicle. The installed moisture and temperature sensor allows for stabilisation of these parameters at the assumed level. In case of excessive moisture, a signal is transmitted to the indicator to initiate blowdown.
The air intake configuration, according to the invention, has been shown as an example of implementation in the drawing, which schematically presents its structure.
The inlet head 2 containing the filter gauze 3 is fixed onto the vehicle side 1. Then, the air inlet is connected to a pneumatic valve 4, in the form of a cylinder 5 and piston 6, both made of self-lubricating, inactive (i.e. not releasing any substances) material, called "tecapeak". A flow resistance detector 9 measuring differential pressure is connected to the air inlet 7 and outlet 8 to and from the valve. Moreover, a moisture and temperature sensor 1 is installed. The valve 4, sensor 9 and detector 10 are all connected to a microprocessor control system 1_1. The air outlet 8 from the intake is connected to the indicator inlet 12, which is also connected to the control system.
Claims
Patent claim
Air intake of a mobile pollution indicator, comprising an air inlet and outlet and filter gauze, characterised by the fact that the filter gauze (3) is located at the air inlet, which is fixed onto the vehicle side (JL), while in the path of the air, there are: a controlled pneumatic valve (4) in the form of a cylinder (5) and piston (6), both made of self-lubricating, inactive material, and a moisture and temperature sensor (10) . A flow resistance detector (9) (differential pressure) is connected to the air inlet (7) and outlet (8) to and from valve (4), while a detector, sensor and valve are all connected to a microprocessor control system (11) ,
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PLP.403995 | 2013-05-21 | ||
| PL403995A PL224791B1 (en) | 2013-05-21 | 2013-05-21 | Mobile air intake contamination signaling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014189394A1 true WO2014189394A1 (en) | 2014-11-27 |
Family
ID=50678252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/PL2014/000037 WO2014189394A1 (en) | 2013-05-21 | 2014-04-08 | Air intake of mobile pollution indicator |
Country Status (2)
| Country | Link |
|---|---|
| PL (1) | PL224791B1 (en) |
| WO (1) | WO2014189394A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536867A (en) * | 2020-06-15 | 2020-08-14 | 武汉轻工大学 | Potentiometer type sensor and pneumatic flatness measuring instrument |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115337720B (en) * | 2022-07-15 | 2023-07-25 | 定边县天晨石油工程机械修配有限公司 | Petroleum associated gas residual liquid separation filter for combustor and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100075586A1 (en) * | 2008-09-25 | 2010-03-25 | Stretch Robert G | Systems and methods of preparing wheel surfaces and maintaining air circulation in a mobile environment |
| US20120052590A1 (en) * | 2010-08-28 | 2012-03-01 | Drager Safety Ag & Co. Kgaa | Process for operating a gas sampling device for colorimetric gas analysis |
| US20120215445A1 (en) * | 2009-12-31 | 2012-08-23 | Emilcott Associates, Inc. | Automated Control of Analytical Sampling with Environmental Monitoring System |
-
2013
- 2013-05-21 PL PL403995A patent/PL224791B1/en unknown
-
2014
- 2014-04-08 WO PCT/PL2014/000037 patent/WO2014189394A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100075586A1 (en) * | 2008-09-25 | 2010-03-25 | Stretch Robert G | Systems and methods of preparing wheel surfaces and maintaining air circulation in a mobile environment |
| US20120215445A1 (en) * | 2009-12-31 | 2012-08-23 | Emilcott Associates, Inc. | Automated Control of Analytical Sampling with Environmental Monitoring System |
| US20120052590A1 (en) * | 2010-08-28 | 2012-03-01 | Drager Safety Ag & Co. Kgaa | Process for operating a gas sampling device for colorimetric gas analysis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536867A (en) * | 2020-06-15 | 2020-08-14 | 武汉轻工大学 | Potentiometer type sensor and pneumatic flatness measuring instrument |
| CN111536867B (en) * | 2020-06-15 | 2021-05-28 | 武汉轻工大学 | Potentiometer type sensor and pneumatic flatness measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| PL403995A1 (en) | 2014-11-24 |
| PL224791B1 (en) | 2017-01-31 |
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