CN113154933A - Cleaning device and cleaning method for air conditioner heat exchanger of railway vehicle - Google Patents
Cleaning device and cleaning method for air conditioner heat exchanger of railway vehicle Download PDFInfo
- Publication number
- CN113154933A CN113154933A CN202110414045.3A CN202110414045A CN113154933A CN 113154933 A CN113154933 A CN 113154933A CN 202110414045 A CN202110414045 A CN 202110414045A CN 113154933 A CN113154933 A CN 113154933A
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- cleaning
- heat exchanger
- air conditioner
- cleaning liquid
- evaporator
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- 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
- F28G15/003—Control arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention belongs to the technical field of railway vehicles, and particularly relates to a cleaning device and a cleaning method for an air-conditioning heat exchanger of a railway vehicle, which comprises a storage tank for storing cleaning liquid, wherein the storage tank is connected with a cleaning liquid conveying pipe, a pump for pumping the cleaning liquid into the cleaning liquid conveying pipe is arranged on the cleaning liquid conveying pipe, and the pump is electrically connected with an air-conditioning control system of the railway vehicle, so that the operation of the pump can be controlled by the air-conditioning control system of the railway vehicle; a plurality of nozzles are arranged on the cleaning liquid conveying pipe; the spray nozzle is towards the heat exchanger; the cleaning liquid sprayed out by the nozzle can cover the cleaning surface of the heat exchanger; according to the invention, the heat exchanger cleaning device is arranged and the condition control of the air conditioner condensing fan, the ventilator, the condenser and the evaporator is combined, so that the automatic cleaning of the heat exchanger is realized, and the manual operation is not needed, therefore, the labor intensity of workers is greatly reduced, the cleaning efficiency is improved, and the damage of the heat exchanger caused by human is avoided.
Description
Technical Field
The invention belongs to the technical field of railway vehicles, and particularly relates to a cleaning device and a cleaning method for an air conditioner heat exchanger of a railway vehicle.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called a heat exchanger. Heat exchangers are classified into heaters, coolers, condensers, evaporators and reboilers according to their use.
At present, a condenser and an evaporator are installed in an air conditioning system of a railway vehicle, and the condenser and the evaporator are easy to become dirty due to long-term outdoor running of the railway vehicle, so that the heat exchange efficiency is influenced after the condenser and the evaporator become dirty, the refrigerating capacity is reduced, fault protection is realized, and the like; therefore, the heat exchanger needs to be cleaned regularly, and meanwhile, the track air conditioner can only be obliquely placed due to the fact that the heat exchange area of the heat exchanger is large, the height of the track air conditioner is small, the bottom space is particularly narrow, and cleaning is difficult.
At present in the trade of the interior washing to rail vehicle air conditioner heat exchanger mainly washs through the manual work, uses high-pressure squirt, sprays operations such as washing liquid, artifical scrubbing, and the operation is wasted time and energy, and is inefficient, and causes the damage of heat exchanger easily.
Disclosure of Invention
The invention provides a cleaning device for a heat exchanger of an air conditioner of a railway vehicle, which aims to solve the problems that the heat exchanger is time-consuming and labor-consuming to clean manually, the efficiency is low, and the heat exchanger is easy to damage.
A cleaning device for a heat exchanger of an air conditioner of a railway vehicle comprises a storage tank for storing cleaning liquid, wherein the storage tank is connected with a cleaning liquid conveying pipe, a pump for pumping the cleaning liquid into the cleaning liquid conveying pipe is arranged on the cleaning liquid conveying pipe, and the pump is electrically connected with an air conditioner control system of the railway vehicle, so that the operation of the pump can be controlled by the air conditioner control system of the railway vehicle; a plurality of nozzles are arranged on the cleaning liquid conveying pipe; the spray nozzle is towards the heat exchanger; the whole heat exchanger cleaning device can be assembled according to the actual field installation condition, and only the spray opening of the nozzle faces the heat exchanger.
A cleaning method based on the cleaning device for the air conditioner heat exchanger of the railway vehicle comprises the following steps:
the evaporator cleaning steps are as follows:
step 1: when the actual temperature in the carriage is detected to be lower than a preset temperature A, firstly, starting a pump to enable a nozzle to spray cleaning liquid onto an evaporator, presetting a spraying time limit, stopping spraying when the spraying time limit is reached, and waiting for the preset time A;
step 2: after waiting for a preset time A, the air conditioner is braked and switched to a refrigeration mode, the rotating speed of the ventilator is reduced, the ventilator is operated for a preset time B, a large amount of water drops are condensed on the evaporator, the ventilator stops operating after operating for the preset time B, the evaporator is frosted, when the actual temperature of the evaporator is detected to be lower than the preset temperature B, the air conditioner is automatically switched to the heating mode, the ventilator operates at the highest rotating speed, the running time C is prolonged, the frost is quickly melted, and impurities on the evaporator are taken away;
the cleaning steps of the condenser are as follows:
step 1: when the actual temperature outside the carriage is detected to be lower than the preset temperature C, starting a pump, spraying cleaning liquid onto the condenser by using a nozzle, and waiting for the preset time D;
step 2: after waiting for preset time D, the air conditioner is automatically switched to a heating mode, the operation of a condensing fan is stopped, the condenser is frosted, when the actual temperature of the condenser is detected to be lower than the preset temperature D, the air conditioner is automatically switched to a refrigerating mode, the condensing fan operates at the highest rotating speed, the frost is quickly melted, and impurities on the evaporator are taken away.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the heat exchanger cleaning device is arranged and the condition control of the air conditioner condensing fan, the ventilator, the condenser and the evaporator is combined, so that the automatic cleaning of the heat exchanger is realized, and the manual operation is not needed, therefore, the labor intensity of workers is greatly reduced, the cleaning efficiency is improved, and the damage of the heat exchanger caused by human is avoided.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
description of reference numerals: 1. a heat exchanger; 2. a cleaning liquid delivery pipe; 3. a nozzle; 4. a storage tank; 5. and (4) a pump.
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.
It should be noted that, in the description of the drawings of the present invention, the positional relationship between the heat exchanger 1 and the whole cleaning apparatus is not a limitation of the present invention, and the drawings are only used for showing the orientation position of the nozzle 3; the position relation between the whole cleaning device and the heat exchanger 1 is adjusted according to the field installation condition and is not invariable; during installation, it is only necessary to ensure that the cleaning fluid sprayed from the nozzles 3 can cover the cleaning surface of the heat exchanger 1.
It should be further noted that the evaporator and the condenser are collectively referred to as a heat exchanger in the present invention.
Referring to fig. 1 to 2, the preferred embodiment of the present invention is as follows: a cleaning device for a heat exchanger of an air conditioner of a railway vehicle comprises a storage tank 4 for storing cleaning liquid, wherein the storage tank 4 is connected with a cleaning liquid conveying pipe 2, a pump 5 for pumping the cleaning liquid into the cleaning liquid conveying pipe 2 is arranged on the cleaning liquid conveying pipe 2, and the pump 5 is electrically connected with an air conditioner control system of the railway vehicle, so that the operation of the pump 5 can be controlled by the air conditioner control system of the railway vehicle; a plurality of nozzles 3 are arranged on the cleaning liquid conveying pipe 2; the spray nozzle 3 has a spray opening facing the heat exchanger 1; the whole cleaning device for the heat exchanger 1 can be assembled according to the actual field installation condition, and only the spray opening of the nozzle 3 faces the heat exchanger 1.
A cleaning method based on the cleaning device for the air conditioner heat exchanger of the railway vehicle comprises the following steps:
the evaporator cleaning steps are as follows:
step 1: when the actual temperature in the carriage is detected to be lower than the preset temperature A, firstly starting the pump 5 to enable the nozzle 3 to spray the cleaning liquid onto the evaporator, presetting the spraying time limit, stopping spraying when the spraying time limit is reached, and waiting for the preset time A;
step 2: after waiting for a preset time A, the air conditioner is automatically switched to a refrigeration mode, the rotating speed of the ventilator is reduced, the ventilator is operated for a preset time B, a large amount of water drops are condensed on the evaporator, the ventilator stops operating after operating for the preset time B, the evaporator is frosted, when the actual temperature of the evaporator is detected to be lower than the preset temperature B, the air conditioner is automatically switched to a heating mode, the ventilator operates at the highest rotating speed, the running time C is prolonged, the frost is quickly melted, and impurities on the evaporator are taken away;
the cleaning steps of the condenser are as follows:
step 1: when the actual temperature outside the carriage is detected to be lower than the preset temperature C, starting the pump 5, spraying the cleaning liquid onto the condenser by the nozzle 3, and waiting for the preset time D;
step 2: after waiting for preset time D, the air conditioner is automatically switched to a heating mode, the operation of a condensing fan is stopped, the condenser is frosted, when the actual temperature of the condenser is detected to be lower than the preset temperature D, the air conditioner is automatically switched to a refrigerating mode, the condensing fan operates at the highest rotating speed, the frost is quickly melted, and impurities on the evaporator are taken away.
The evaporator cleaning step further comprises step 3: after the step 2 is finished and after the interval time E, starting the pump 5 to enable the nozzle 3 to spray the cleaning liquid onto the evaporator, presetting the spraying time limit, stopping spraying when the spraying time limit is reached, and waiting for the preset time A; and step 2 is executed again, so that the second cleaning is finished.
The condenser cleaning step further comprises step 3: after step 2 is completed and after a time F, starting the pump 5, spraying the cleaning liquid onto the condenser by the nozzle 3, and waiting for a preset time D; and step 2 is executed, so that the second cleaning is finished.
The time A to the time F can be preset in an air-conditioning control system of the railway vehicle; the temperature A to the temperature D can also be preset in an air conditioning system of the rail vehicle;
the temperature that needs to detect condenser and evaporimeter is mentioned to the aforesaid, and condenser and evaporimeter all have temperature sensor certainly, and the accessible detects from the sensor of taking, if do not have from taking temperature sensor, then can install additional, only need satisfy can detect condenser and evaporimeter respective temperature to with it insert among rail vehicle's the air conditioner control system can.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a rail vehicle air conditioner heat exchanger belt cleaning device which characterized in that: the cleaning device comprises a storage tank (4) for storing cleaning liquid, wherein the storage tank (4) is connected with a cleaning liquid conveying pipe (2), a pump (5) for pumping the cleaning liquid into the cleaning liquid conveying pipe (2) is installed on the cleaning liquid conveying pipe (2), and the pump (5) is electrically connected with a rail vehicle air conditioner control system, so that the operation of the pump (5) can be controlled through the rail vehicle air conditioner control system; a plurality of nozzles (3) are arranged on the cleaning liquid conveying pipe (2); the spraying opening of the nozzle (3) faces the heat exchanger (1), so that the cleaning liquid sprayed out from the nozzle (3) can cover the cleaning surface of the heat exchanger (1).
2. A cleaning method based on a cleaning device of a rail vehicle air conditioner heat exchanger is characterized by comprising the following steps: the evaporator cleaning steps are as follows:
step 1: when the actual temperature in the carriage is detected to be lower than a preset temperature A, firstly starting a pump (5) to enable a nozzle (3) to spray cleaning liquid onto an evaporator, presetting a spraying time limit, stopping spraying when the spraying time limit is reached, and waiting for the preset time A;
step 2: after waiting for preset time A, the air conditioner is braked and switched to a refrigeration mode, the rotating speed of the ventilator is reduced, the preset time B is operated, a large amount of water drops are condensed on the evaporator, the ventilator stops operating after operating for the preset time B, the evaporator frosts, when the actual temperature of the evaporator is detected to be lower than the preset temperature B, the air conditioner is automatically switched to a heating mode, the ventilator runs at the highest rotating speed, and the running time C enables the frost to be quickly melted and takes away impurities on the evaporator.
3. A cleaning method based on a cleaning device of a rail vehicle air conditioner heat exchanger is characterized by comprising the following steps: the cleaning steps of the condenser are as follows:
step 1: when the actual temperature outside the carriage is detected to be lower than the preset temperature C, starting the pump (5) to spray the cleaning liquid onto the condenser by the nozzle (3), and waiting for the preset time D;
step 2: after waiting for preset time D, the air conditioner is automatically switched to a heating mode, the operation of a condensing fan is stopped, the condenser is frosted, when the actual temperature of the condenser is detected to be lower than the preset temperature D, the air conditioner is automatically switched to a refrigerating mode, the condensing fan operates at the highest rotating speed, the frost is quickly melted, and impurities on the evaporator are taken away.
4. The cleaning method based on the rail vehicle air conditioner heat exchanger cleaning device is characterized in that: the evaporator cleaning step further comprises step 3: after the step 2 is finished and after the interval time E, starting a pump (5) to enable a nozzle (3) to spray the cleaning liquid onto the evaporator, presetting a spraying time limit, stopping spraying when the spraying time limit is reached, and waiting for a preset time A; and step 2 is executed again, so that the second cleaning is finished.
5. The cleaning method based on the rail vehicle air conditioner heat exchanger cleaning device is characterized in that: the condenser cleaning step further comprises step 3: after the step 2 is finished and after the interval of time F, starting a pump (5) to spray the cleaning liquid onto the condenser by using a nozzle (3), and waiting for a preset time D; and step 2 is executed, so that the second cleaning is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110414045.3A CN113154933A (en) | 2021-04-16 | 2021-04-16 | Cleaning device and cleaning method for air conditioner heat exchanger of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110414045.3A CN113154933A (en) | 2021-04-16 | 2021-04-16 | Cleaning device and cleaning method for air conditioner heat exchanger of railway vehicle |
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| CN113154933A true CN113154933A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110414045.3A Pending CN113154933A (en) | 2021-04-16 | 2021-04-16 | Cleaning device and cleaning method for air conditioner heat exchanger of railway vehicle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247695A (en) * | 2016-08-31 | 2016-12-21 | 海尔优家智能科技（北京）有限公司 | A kind of air-conditioning and air-conditioning self cleaning method |
| CN106767126A (en) * | 2016-11-30 | 2017-05-31 | 广东美的制冷设备有限公司 | Air-conditioner evaporator cleaning control method, device and air-conditioner |
| CN107449070A (en) * | 2017-09-21 | 2017-12-08 | 珠海格力电器股份有限公司 | A kind of heat exchanger of air conditioner outdoor unit cleaning method, device and air-conditioning |
| CN107763797A (en) * | 2017-10-10 | 2018-03-06 | 广东美的制冷设备有限公司 | The self cleaning method and air conditioner of heat exchanger of air conditioner |
| WO2019217190A1 (en) * | 2018-05-09 | 2019-11-14 | Saudi Arabian Oil Company | Air-cooled heat exchanger cleaning and temperature control apparatus and method |
| CN112361532A (en) * | 2020-09-10 | 2021-02-12 | 江苏友奥电器有限公司 | Dust removal method and device for outdoor unit of household air conditioner |
-
2021
- 2021-04-16 CN CN202110414045.3A patent/CN113154933A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247695A (en) * | 2016-08-31 | 2016-12-21 | 海尔优家智能科技（北京）有限公司 | A kind of air-conditioning and air-conditioning self cleaning method |
| CN106767126A (en) * | 2016-11-30 | 2017-05-31 | 广东美的制冷设备有限公司 | Air-conditioner evaporator cleaning control method, device and air-conditioner |
| CN107449070A (en) * | 2017-09-21 | 2017-12-08 | 珠海格力电器股份有限公司 | A kind of heat exchanger of air conditioner outdoor unit cleaning method, device and air-conditioning |
| CN107763797A (en) * | 2017-10-10 | 2018-03-06 | 广东美的制冷设备有限公司 | The self cleaning method and air conditioner of heat exchanger of air conditioner |
| WO2019217190A1 (en) * | 2018-05-09 | 2019-11-14 | Saudi Arabian Oil Company | Air-cooled heat exchanger cleaning and temperature control apparatus and method |
| CN112361532A (en) * | 2020-09-10 | 2021-02-12 | 江苏友奥电器有限公司 | Dust removal method and device for outdoor unit of household air conditioner |
Non-Patent Citations (2)
| Title |
|---|
| 刘景昌 等: "《现代家用电器维修手册 上》", 30 September 1997, 机械工业出版社 * |
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Application publication date: 20210723 |