CN113847839A - On-machine cleaning device and method for double-stage radiator - Google Patents
On-machine cleaning device and method for double-stage radiator Download PDFInfo
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- CN113847839A CN113847839A CN202111157316.8A CN202111157316A CN113847839A CN 113847839 A CN113847839 A CN 113847839A CN 202111157316 A CN202111157316 A CN 202111157316A CN 113847839 A CN113847839 A CN 113847839A
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- radiator
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- valve
- double
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- 238000004140 cleaning Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000013535 sea water Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to the field of air conditioning systems of aircraft cabins, in particular to an onboard cleaning device and an onboard cleaning method for a double-stage radiator. Comprises a radiator (1), a water inlet pipe (2), a pipe joint (3), a shut-off valve (4), a water pump (5), a shut-off valve (6), a cleaning box (7), a drain pipe (8), a shut-off valve (9), a water pump (10) and a liquid collecting box (11); the invention fully considers the installation forms of the double-stage radiator on different airplanes, is simple and operable, and can meet the daily post-aviation inspection and regular maintenance requirements. The adopted equipment is common tools, and the existing tools in the production field can be used without independently designing tools. By applying the method, the corrosion influence of the marine environment on the radiator can be effectively reduced, the service life of the radiator is prolonged, and the later maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of air conditioning systems of aircraft cabins, in particular to an onboard cleaning device and an onboard cleaning method for a double-stage radiator.
Background
The current air conditioning system of a large-scale aircraft cabin mainly adopts a three-wheel high-pressure water removal and refrigeration system. The system cools and decompresses engine bleed air and provides the cooled and decompressed air to a cabin ventilation system. In order to ensure better refrigerating effect, a double-stage radiator is usually arranged in the three-wheel high-pressure dewatering refrigerating system, and the bleed air of the engine is cooled in advance through outside ram air. In the whole three-wheel high-pressure dewatering and refrigerating system, the radiator belongs to the part with the largest weight and volume ratio, is inconvenient to disassemble and assemble, is a pure mechanical part and has low failure rate. Maintenance is not typically performed.
For a large amphibious aircraft or an aircraft with requirements for sea flight and seaside parking, all airborne parts are extremely easy to corrode due to the marine environment in which the aircraft is located. Particularly, a cold channel of a double-stage radiator in the three-wheel high-pressure dewatering and refrigerating system is directly contacted with the ocean atmosphere, or due to the factors of installation layout, external seawater can enter the cold channel of the double-stage radiator and accumulate in the radiator, so that the core body of the radiator is soaked and corroded, and the refrigerating effect and the service life of the radiator are seriously influenced. Therefore, for such aircraft, in addition to the anti-corrosion design of the radiator, the necessary onboard maintenance and service may also reduce the effects of corrosion, effectively extending the life of the radiator.
The invention provides a double-stage radiator on-machine cleaning device and a double-stage radiator on-machine cleaning method.
Disclosure of Invention
The invention aims to provide a double-stage radiator on-machine cleaning device and a double-stage radiator on-machine cleaning method.
The technical scheme adopted by the invention is as follows: an on-machine cleaning device for a double-stage radiator comprises a double-stage radiator 1, a water inlet pipe 2, a pipe joint 3, a shut-off valve 4, a water pump 5, a shut-off valve 6, a cleaning box 7, a drain pipe 8, a shut-off valve 9, a water pump 10 and a liquid collecting box 11; the cleaning box 7 is sequentially connected with the shut-off valve 6, the water pump 5, the shut-off valve 4, the pipe joint 3 and the water inlet pipe 2, the water inlet pipe 2 extends into an air inlet pipe of the radiator 1, a plurality of small holes are formed in the water inlet pipe 2 along the circumferential direction, one end of the drain pipe 8 extends into an exhaust pipe of the radiator 1, and the other end of the drain pipe is sequentially connected with the shut-off valve 9, the water suction pump 10 and the liquid collecting box 11.
A liquid collecting box 11 is arranged at the water outlet of the water pump 8.
A cold air duct air inlet pipe and an exhaust pipe of the radiator 1 are respectively a water inlet channel and a water drainage channel.
The volume of the cleaning tank 7 and the liquid collecting tank 11 is determined by estimating the volume of liquid required by single soaking and cleaning according to the volume of a cold air duct of a radiator and taking the limit that the liquid does not overflow or enter other equipment.
The water inlet pipe 2 and the water outlet pipe 8 adopt flexible pipes.
The lift of the water pump 5 is to ensure that the water pressure in the water inlet pipe 2 is sufficient to be sprayed from the small holes to the inner wall of the air inlet duct.
An on-machine cleaning method for a double-stage radiator comprises the following specific steps:
adding water or cleaning fluid into the cleaning tank 7, opening the downstream shutoff valve 6, entering the water pump 5, pressurizing the liquid by the water pump 5, and opening the downstream shutoff valve 4 of the water pump 5 when preparing for cleaning; water or cleaning solution flows into the water inlet pipe 2 through the pipe joint 3, is sprayed onto the inner wall of the air inlet pipe through the small holes formed in the water inlet pipe 2, is soaked for 1-2 hours after the injected water or cleaning solution is filled in the cold channel of the radiator 1, and is drained by opening the water suction pump 10 and the shutoff valve 9.
And after the cleaning process is finished, the three-wheel high-pressure dewatering and refrigerating system works for 10 minutes, and the radiator 1 is dried.
The residual liquid in the cleaning tank 7 and the liquid collecting tank 11 can be manually unscrewed from a valve below the tank body for safe discharge.
Determining the type of wash based on the marine environment in which the aircraft is located, including:
a) when the seawater is contacted in the flight, the seawater is washed with clean water for many times after the flight is finished.
b) After the seaside is parked or flying on the sea, the cleaning solution is used for soaking and washing at regular intervals and then is washed.
The invention has the beneficial effects that: the double-stage radiator on-board cleaning device and the double-stage radiator on-board cleaning method fully consider the installation forms of the double-stage radiators on different airplanes, are simple and operable, and can meet daily post-aviation inspection and regular maintenance requirements. The adopted equipment is common tools, and the existing tools in the production field can be used without independently designing tools. By applying the method, the corrosion influence of the marine environment on the radiator can be effectively reduced, the service life of the radiator is prolonged, and the later maintenance cost is reduced.
Drawings
FIG. 1 is a schematic diagram of an onboard cleaning method for a three-wheeled high-pressure water-removal refrigeration system according to the present invention.
Wherein:
1-radiator, 2-water inlet pipe, 3-pipe joint, 4-shutoff valve, 5-water pump, 6-shutoff valve, 7-cleaning tank, 8-water discharge pipe, 9-shutoff valve, 10-water pump and 11-liquid collecting tank.
Detailed Description
The invention is further described with reference to the following figures.
Referring to fig. 1, the on-board cleaning device for the double-stage radiator comprises a radiator 1, a water inlet pipe 2, a pipe joint 3, a shut-off valve 4, a water pump 5, a shut-off valve 6, a cleaning tank 7, a water drain pipe 8, a shut-off valve 9, a water pump 10 and a liquid collecting tank 11; the cleaning box 7 is sequentially connected with the shut-off valve 6, the water pump 5, the shut-off valve 4, the pipe joint 3 and the water inlet pipe 2, the water inlet pipe 2 extends into an air inlet pipe of the radiator 1, a plurality of small holes are formed in the water inlet pipe 2 along the circumferential direction, one end of the drain pipe 8 extends into an exhaust pipe of the radiator 1, and the other end of the drain pipe is connected with the shut-off valve 9 and the water suction pump 10.
A liquid collecting box 11 is arranged at the water outlet of the water pump 9.
A cold air duct air inlet pipe and an exhaust pipe of the radiator 1 are respectively a water inlet channel and a water drainage channel.
The volume of the cleaning tank 7 and the liquid collecting tank 11 is determined by estimating the volume of liquid required by single soaking and cleaning according to the volume of a cold air duct of a radiator and taking the limit that the liquid does not overflow or enter other equipment.
The water inlet pipe 2 and the water outlet pipe 7 adopt flexible pipes, can adapt to the complex trend of an air inlet pipe and an air outlet pipe, and also avoid colliding with cold air duct pipelines and equipment (such as fans and the like) in the pipelines.
The lift of the water pump 5 is to ensure that the water pressure in the water inlet pipe 2 is sufficient to be sprayed from the small holes to the inner wall of the air inlet duct.
An on-machine cleaning method for a double-stage radiator comprises the following specific steps:
adding sufficient water or cleaning liquid into a cleaning tank 7, opening a downstream shutoff valve 6, entering a water pump 5, pressurizing the liquid by the water pump 5, and opening a downstream shutoff valve 4 of the water pump 5 when preparing to clean; water or cleaning solution flows into the water inlet pipe 2 through the pipe joint 3, is sprayed onto the inner wall of the air inlet pipe through the small holes formed in the water inlet pipe 2, is soaked for 1-2 hours after the injected water or cleaning solution is filled in the cold channel of the radiator 1, and is discharged by opening the water suction pump 8.
After the cleaning process is finished, the three-wheel high-pressure dewatering and refrigerating system is kept working for 10 minutes, and the radiator 1 is dried by hot gas of the engine flowing through the hot edge of the radiator.
The residual liquid in the cleaning tank 7 and the liquid collecting tank 11 can be manually unscrewed from a valve below the tank body for safe discharge.
Determining the type of wash based on the marine environment in which the aircraft is located, including:
a) when the seawater is contacted in the flight, the seawater is washed with clean water for many times after the flight is finished.
b) After the seaside is parked or flying on the sea, the cleaning solution is used for soaking and washing at regular intervals and then is washed.
The cleaning solution is prepared according to the proportion of water-based cleaning agent (TFQX-1) and water being 1: 9.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The on-board cleaning device for the double-stage radiator is characterized by comprising a radiator (1), a water inlet pipe (2), a pipe joint (3), a shut-off valve (4), a water pump (5), a shut-off valve (6), a cleaning box (7), a drain pipe (8), a shut-off valve (9), a water suction pump (10) and a liquid collecting box (11); wash case (7) and shut-off valve (6), water pump (5), shut-off valve (4), coupling (3), inlet tube (2) and connect gradually, during inlet tube (2) stretched into the intake pipe of radiator (1), a plurality of apertures had been seted up along the circumferencial direction on inlet tube (2), during drain pipe (8) one end stretched into the blast pipe of radiator (1), the other end was connected with shut-off valve (9), suction pump (10).
2. The twin radiator on-board cleaning apparatus according to claim 1, wherein a header tank (11) is provided at the water outlet of the suction pump (10).
3. The on-board cleaning device for the double-stage radiator according to claim 1, wherein the cold air duct inlet pipe and the cold air duct outlet pipe of the double-stage radiator (1) are a water inlet channel and a water outlet channel respectively.
4. The twin-stage radiator on-board cleaning device according to claim 1, wherein the volumes of the cleaning tank (6) and the liquid collecting tank (9) are determined by estimating the liquid volume required for single-immersion cleaning according to the volume of the cold air duct of the radiator, with the limit that the liquid does not overflow or enter other equipment.
5. The twin-stage radiator on-board cleaning device according to claim 1, wherein the water inlet pipe (2) and the water outlet pipe (7) are hoses.
6. The twin radiator on-board cleaning apparatus according to claim 1, wherein the lift of the water pump (5) is such that the water pressure in the water inlet pipe (2) is sufficient to be ejected from the small holes to the inner wall of the air intake duct.
7. The method for cleaning the on-board cleaning device for the double-stage radiator according to any one of claims 1 to 6, characterized by comprising the following specific steps:
adding sufficient water or cleaning liquid into a cleaning tank (7), opening a downstream shutoff valve (6), entering a water pump (5), pressurizing the liquid by the water pump (5), and opening a downstream shutoff valve (4) of the water pump (5) when the cleaning tank is ready for cleaning; water or cleaning solution flows into the water inlet pipe (2) through the pipe joint (3), is sprayed onto the inner wall of the air inlet pipe through the small holes formed in the water inlet pipe (2), and is soaked for 1-2 hours after the injected water or cleaning solution fills the cold channel of the radiator (1), and then the water suction pump (8) is opened to discharge the liquid.
8. The method for cleaning the on-machine cleaning device of the double-stage radiator according to claim 7, wherein after the cleaning process is finished, the three-wheel high-pressure dewatering and refrigerating system is operated for 10 minutes to dry the radiator 1.
9. The method for cleaning the on-board cleaning device for the double-stage radiator according to claim 7, characterized in that the residual liquid in the cleaning tank (7) and the liquid collecting tank (11) can be manually unscrewed from the valve below the tank body for safe discharge.
10. The method of claim 7, wherein determining the type of wash based on the marine environment of the aircraft comprises:
a) when the seawater is contacted in the flight, the seawater is washed with clean water for many times after the flight is finished.
b) After the seaside is parked or flying on the sea, the cleaning solution is used for soaking and washing at regular intervals and then is washed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157316.8A CN113847839A (en) | 2021-09-30 | 2021-09-30 | On-machine cleaning device and method for double-stage radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157316.8A CN113847839A (en) | 2021-09-30 | 2021-09-30 | On-machine cleaning device and method for double-stage radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113847839A true CN113847839A (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111157316.8A Pending CN113847839A (en) | 2021-09-30 | 2021-09-30 | On-machine cleaning device and method for double-stage radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113847839A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030188771A1 (en) * | 2002-04-03 | 2003-10-09 | Po-Lin Liao | Radiator cleaning device |
| CN209541531U (en) * | 2018-12-18 | 2019-10-25 | 北京飞机维修工程有限公司 | A kind of airplane heat exchanger flushing device |
| CN110657703A (en) * | 2019-11-04 | 2020-01-07 | 江苏亨通精工金属材料有限公司 | Plate radiator online cleaning device |
-
2021
- 2021-09-30 CN CN202111157316.8A patent/CN113847839A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030188771A1 (en) * | 2002-04-03 | 2003-10-09 | Po-Lin Liao | Radiator cleaning device |
| CN209541531U (en) * | 2018-12-18 | 2019-10-25 | 北京飞机维修工程有限公司 | A kind of airplane heat exchanger flushing device |
| CN110657703A (en) * | 2019-11-04 | 2020-01-07 | 江苏亨通精工金属材料有限公司 | Plate radiator online cleaning device |
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