CN105013772A - Cleaning device and method for car air conditioning system - Google Patents
Cleaning device and method for car air conditioning system Download PDFInfo
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- CN105013772A CN105013772A CN201510455905.2A CN201510455905A CN105013772A CN 105013772 A CN105013772 A CN 105013772A CN 201510455905 A CN201510455905 A CN 201510455905A CN 105013772 A CN105013772 A CN 105013772A
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- medium
- conditioning system
- automotive air
- pump
- valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
Abstract
The invention discloses a cleaning device and method for a car air conditioning system. The cleaning device comprises a box and further comprises a liquid storage tank, a gas storage tank and a pipeline system. The liquid storage tank is arranged in the box and used for storing a first medium. The gas storage tank is used for storing a second medium. The pipeline system is arranged in parallel. The pipeline system comprises a flow supply main way, a flow return main way, a first flow supply branch way, a second flow supply branch way, a first flow return branch way and a second flow return branch way. The cleaning device and method have the positive effects that the device has the advantages of being simple in operation, high in adjustability, safe, reliable and small in occupied space; the purpose of recycling of air conditioner cleanser is achieved, and the cleaning cost is effectively reduced; cleaned-out impurity compositions can be effectively sampled through a filtration-adsorption device, and secondary pollution is avoided; the cleaned car air conditioning system is further dried through high-purity nitrogen; the residue problem of the cleanser is effectively solved; the cleaned product can completely meet the use requirements.
Description
Technical field
The invention belongs to air conditioning for automobiles service equipment technical field, be specifically related to a kind of automotive air-conditioning system cleaning equipment and method.
Background technology
Air conditioning for automobiles, in long-term use procedure, can put aside a large amount of dirts and bacterium in vivo.At present, the common practice of air conditioning for automobiles cleaning has: (1) starts automobile, opens air conditioner refrigerating, cleaning agent is sprayed to air-conditioning air inlet, again by the condensed water cleaning that air-conditioning evaporation self produces, the condensed water produced due to evaporimeter is not enough, is difficult to clean up; (2) start automobile, spray cleaning agent facing to air inlet, spray clear water, this method cleaning performance is better, but there is a shortcoming, is exactly to produce large water gaging in cleaning process to overflow, and easily burns out other electronic components of automobile; (3) need various for air conditioning for automobiles parts to disassemble, clean one by one and can thoroughly clean up like this, this way not only technical strong, workload large, and cost is high.
As can be seen here, the integrated operation process automation degree of automotive air-conditioning system cleaning is low, is unfavorable for that batch cleans exemplar; Simultaneously, cleaning air conditioner liquid cannot reuse, cause cleaning cost high, can not effectively analyze the impurity component cleaned out, its residual cleaning agent (main component is acetone, and easily volatilization is sucked by human body), as not drying volatilization, not only can affect refrigeration, also can cause damage to operating personnel are healthy.
Summary of the invention
In view of this, task of the present invention is to overcome above-mentioned prior art weak point, and provides a kind of simple, easy to operate, safety, thoroughly the cleaning equipment of cleaning motorcar air conditioner, its object is to the recycling effectively solving air conditioner cleaning agent, reduce cleaning cost; And efficient sampling can be carried out to the impurity component cleaned out, avoid pollution; Also can improve the cleaning efficiency of single-piece, also attach drying function in addition, solve cleaning agent residue problem.
The present invention is achieved through the following technical solutions:
A kind of automotive air-conditioning system cleaning equipment of the present invention, comprises casing, described equipment also comprise be located in casing for store first medium fluid reservoir, for the air accumulator that stores second medium and the pipe-line system be arranged in parallel; Described pipe-line system comprises for stream main road, backflow main road, first for flowing branch road, second for stream branch road, the first backflow branch road and the second backflow branch road;
The described stream main road that supplies is communicated with for flowing branch road for flowing branch road and second with first respectively by the first variable adjustment valve;
Described first is communicated with automotive air-conditioning system with the first backflow branch road for stream branch road, and described second is communicated with automotive air-conditioning system with the second backflow branch road for stream branch road;
Described first backflow branch road is communicated with backflow main road by filtering adsorpting device with the second backflow branch road;
The port of export of described fluid reservoir is communicated with for flowing main road by the first magnetic valve, and its arrival end is communicated with backflow main road; The first pump flowed for ordering about first medium is provided with between the arrival end of described fluid reservoir and backflow main road;
Stream main road is also provided with the second variable adjustment valve to described confession, and described backflow main road is also provided with the 3rd variable adjustment valve, and the port of export of described air accumulator is communicated with the second adjustable valve by the second magnetic valve, and its arrival end is communicated with the 3rd adjustable valve; The second pump flowed for ordering about second medium is provided with between the arrival end of described air accumulator and the 3rd variable adjustment valve.
Further, described equipment also comprises the controller for controlling the first magnetic valve, the second magnetic valve, the first variable adjustment valve, the second variable adjustment valve, the 3rd variable adjustment valve, the first pump and the second pump operation state.
Further, described first medium is liquid cleaning agent; Described second medium is the nitrogen of gaseous state.
Further, the heater for heated nitrogen is also provided with between the port of export of described air accumulator and the second variable adjustment valve.
Further, stream main road is also provided with the first-class gauge for detecting cleaning agent flow and the first pressure sensor for detecting nitrogen pressure to described confession; Described backflow main road is also provided with the second gauge for detecting cleaning agent flow and the second pressure sensor for detecting nitrogen pressure, described first-class gauge, second gauge, the first pressure sensor and the second pressure sensor by signal transmission to controller.
Further, the material manufacturing described pipe-line system is stainless steel or copper.
Further, described first magnetic valve and the second magnetic valve are check valve; Described by-passing valve is two-way valve; Described first variable adjustment valve, the second variable adjustment valve and the 3rd variable adjustment valve are triple valve.
Further, described for stream main road and backflow main road between be provided with bypass branch, described bypass branch is provided with by-passing valve, described by-passing valve by signal transmission to controller.
Further, utilize the first path of automotive air-conditioning system cleaning equipment to carry out the method for automotive air-conditioning system internal washing, comprise the steps:
(1) controller controls all valves and pump is in closed condition;
(2) controller controls the first magnetic valve and the second variable adjustment valve is opened, and the first variable adjustment valve is opened and is only communicated with for flow branch road with first, and its first medium is by supplying to flow branch road enter automotive air-conditioning system inside for flowing main road and first;
(3) controller controls the first pump startup, the 3rd variable adjustment valve is opened and is only communicated with the first pump, and its first medium is extracted out from automotive air-conditioning system inside, now, containing impurity in first medium;
(4) controller keeps this running status, and first medium enters purified treatment in filtering adsorpting device after the first backwater branch road; Now, not containing impurity in the first medium after purification, and then be admitted in fluid reservoir through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(5) controller controls the first closed electromagnetic valve, and first medium is all withdrawn in fluid reservoir under the work of the first pump, and last controller controls the first pump and cuts out; This completes the cleaning of the first step;
(6) controller controls the second magnetic valve and opens, and the 3rd variable adjustment valve is opened and is only communicated with the second pump, and its second medium is by entering automotive air-conditioning system inside for stream main road and first for stream branch road;
(7) controller controls the second pump startup, and its second medium is extracted out from automotive air-conditioning system inside, now, containing impurity in second medium;
(8) controller keeps this running status, and second medium enters purified treatment in filtering adsorpting device after the first backwater branch road; Now, not containing impurity in the second medium after purification, and then be admitted in air accumulator through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(9) controller controls the second closed electromagnetic valve, and second medium is all withdrawn in air accumulator under the work of the second pump, and last controller controls the second pump and cuts out and other valves, completes the internal washing work of automotive air-conditioning system.
Further, utilize the alternate path of automotive air-conditioning system cleaning equipment to carry out the method for automotive air-conditioning system internal washing, comprise the steps:
(1) controller controls all valves and pump is in closed condition;
(2) controller controls the first magnetic valve and the second variable adjustment valve is opened, and the first variable adjustment valve is opened and is only communicated with for flow branch road with second, and its first medium is by supplying to flow branch road enter automotive air-conditioning system inside for flowing main road and second;
(3) controller controls the first pump startup, the 3rd variable adjustment valve is opened and is only communicated with the first pump, and its first medium is extracted out from automotive air-conditioning system inside, now, containing impurity in first medium;
(4) controller keeps this running status, and first medium enters purified treatment in filtering adsorpting device after the second backwater branch road; Now, not containing impurity in the first medium after evolution, and then be admitted in fluid reservoir through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(5) controller controls the first closed electromagnetic valve, and first medium is all withdrawn in fluid reservoir under the work of the first pump, and last controller controls the first pump and cuts out; This completes the cleaning of the first step;
(6) controller controls the second magnetic valve and opens, and the 3rd variable adjustment valve is opened and is only communicated with the second pump, and its second medium is by entering automotive air-conditioning system inside for stream main road and second for stream branch road;
(7) controller controls the second pump startup, and its second medium is extracted out from automotive air-conditioning system inside, now, containing impurity in second medium;
(8) controller keeps this running status, and second medium enters purified treatment in filtering adsorpting device after the second backwater branch road; Now, not containing impurity in the second medium after purification, and then be admitted in air accumulator through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(9) controller controls the second closed electromagnetic valve, and second medium is all withdrawn in air accumulator under the work of the second pump, and last controller controls the second pump and cuts out and other valves, completes the internal washing work of automotive air-conditioning system.
Beneficial effect of the present invention is:
1, cleaning equipment of the present invention have simple to operate, modulability is strong, the safe and reliable and advantage that floor space is little.
2, cleaning equipment of the present invention not only thoroughly can clean air-conditioning system, also can carry out batch cleaning.
3, cleaning equipment of the present invention solves the recycling problem of air conditioner cleaning agent, and effectively reduces cleaning cost.
4, cleaning equipment of the present invention can carry out efficient sampling to the impurity component cleaned out by the filtering adsorpting device arranged, and avoids secondary pollution;
5, cleaning equipment of the present invention carrys out the automotive air-conditioning system after dry cleaning by highly purified nitrogen, effectively solves cleaning agent residue problem, makes the product after cleaning can meet instructions for use completely.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by description below and obtain.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the structure principle chart of present device;
Fig. 2 is the control principle drawing of present device;
Fig. 3 is the schematic diagram of present device;
Wherein, 1-fluid reservoir, 101-first magnetic valve, 102-first pump; 2-air accumulator, 201-second magnetic valve, 202-second pump; 3-is for stream main road, and 301-first is for stream branch road, and 301 second for stream branch road; 4-refluxes main road, 401 first backflow branch roads, and 402-second refluxes branch road; 501-first variable adjustment valve, 502-second variable adjustment valve, 503-the 3rd variable adjustment valve; 6-filtering adsorpting device; 7-controller; The first-class gauge of 801-, 802-second gauge; 901 first pressure sensors, 902 second pressure sensors; 10-bypass branch; 11-by-passing valve.
Detailed description of the invention
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail; Should be appreciated that preferred embodiment only in order to the present invention is described, instead of in order to limit the scope of the invention.
As shown in the figure, a kind of automotive air-conditioning system cleaning equipment of the present invention, comprises casing, described equipment also comprise be located in casing for store first medium fluid reservoir 1, for the air accumulator 2 that stores second medium and the pipe-line system be arranged in parallel; Described pipe-line system comprises for stream main road 3, the main road 4, first that refluxes for flowing branch road 301, second for stream branch road 302, first backflow branch road 401 and the second backflow branch road 402;
The described stream main road that supplies is communicated with for flowing branch road for flowing branch road and second with first respectively by the first variable adjustment valve 501;
Described first is communicated with automotive air-conditioning system with the first backflow branch road for stream branch road, and described second is communicated with automotive air-conditioning system with the second backflow branch road for stream branch road;
Described first backflow branch road is communicated with backflow main road by filtering adsorpting device 6 with the second backflow branch road;
The port of export of described fluid reservoir is communicated with for flowing main road by the first magnetic valve 101, and its arrival end is communicated with backflow main road; The first pump 102 flowed for ordering about first medium is provided with between the arrival end of described fluid reservoir and backflow main road;
Stream main road is also provided with the second variable adjustment valve 502 to described confession, and described backflow main road is also provided with the 3rd variable adjustment valve 503, and the port of export of described air accumulator is communicated with the second adjustable valve by the second magnetic valve 201, and its arrival end is communicated with the 3rd adjustable valve; The second pump 202 flowed for ordering about second medium is provided with between the arrival end of described air accumulator and the 3rd variable adjustment valve; Described equipment also comprises the controller for controlling the first magnetic valve, the second magnetic valve, the first variable adjustment valve, the second variable adjustment valve, the 3rd variable adjustment valve, the first pump and the second pump operation state, and described first medium is liquid cleaning agent; Described second medium is the nitrogen of gaseous state; In the present embodiment, described first pump is suction pump, and described second pump is vacuum pumping pump.
Concrete, when needs cleaning automotive air-conditioning system is inner, controller opens first magnetic valve, first variable adjustment valve and the second variable adjustment valve, cleaning agent enters automotive air-conditioning system inside for stream branch road or second for stream branch road through first from for stream main road, controller opens first pump, 3rd variable adjustment valve is only communicated with the first pump, cleaning agent circulates and enters the first backflow branch road or the second backflow branch road in automotive air-conditioning system, now, if automotive air-conditioning system did not carry out cleaning, from automotive air-conditioning system, then export the cleaning agent entering the first backflow branch road or the second backflow branch road contain impurity, then the cleaning agent containing impurity enters after filtering adsorpting device carries out contaminant filter process and enters in backflow main road, in final inflow fluid reservoir, keep this running status, until the impurity of automotive air-conditioning system inside is eliminated complete, controller cuts out the first magnetic valve, cleaning agent in automotive air-conditioning system inside and pipe-line system will be stayed extract out and all enter in fluid reservoir under the work of the first pump, controller cuts out the first pump, now completes the first step work of automotive air-conditioning system internal washing, controller opens second magnetic valve, nitrogen enters automotive air-conditioning system inside for stream branch road or second for stream branch road through first from for stream main road, controller opens second pump, 3rd variable adjustment valve is only communicated with the second pump, nitrogen circulates and enters the first backflow branch road or the second backflow branch road in automotive air-conditioning system, now, nitrogen by absorption the pipeline of process and the cleaning agent of automotive air-conditioning system inside, then the nitrogen containing impurity enters after filtering adsorpting device carries out contaminant filter process and enters in backflow main road, in final inflow air accumulator, keep this running status, until the cleaning agent of automotive air-conditioning system inside is eliminated complete, controller cuts out the second magnetic valve, nitrogen in automotive air-conditioning system inside and pipe-line system will be stayed extract out and all enter in air accumulator under the work of the second pump, controller cuts out the second pump and other valves opened, and now completes whole work of automotive air-conditioning system internal washing.Cleaning equipment of the present invention have simple to operate, modulability is strong, the safe and reliable and advantage that floor space is little; And this cleaning equipment not only thoroughly can clean air-conditioning system, also batch cleaning can be carried out.Cleaning equipment of the present invention also solves the recycling problem of air conditioner cleaning agent, and effectively reduces cleaning cost; And efficient sampling can be carried out to the impurity component cleaned out by the filtering adsorpting device arranged, avoid secondary pollution; Carry out the automotive air-conditioning system after dry cleaning further by highly purified nitrogen, effectively solve cleaning agent residue problem, make the product after cleaning can meet instructions for use completely.
As further improvement of this embodiment, described equipment is also provided with for annotate toward the fluid reservoir inlet of cleaning agent and the floss hole for discharging cleaning agent in fluid reservoir; The inlet of described fluid reservoir is provided with the filter for filtering cleaning agent, to ensure the degree of purity of cleaning agent in fluid reservoir, places presumable impurity blocking pipeline system.
As further improvement of this embodiment, the entrance point of described second pump is provided with the filter for filter nitrogen, ensures the purity entering nitrogen in air accumulator further.
As further improvement of this embodiment, the heater for heated nitrogen is also provided with between the port of export of described air accumulator and the second variable adjustment valve, so that the oven dry of the circulation of nitrogen and quickening automotive air-conditioning system inside, be conducive to removing residual cleaning agent fast.
As further improvement of this embodiment, the material manufacturing described pipe-line system and other connecting lines is stainless steel or copper, can prevent corrosive pipeline like this.
As further improvement of this embodiment, described first magnetic valve and the second magnetic valve are check valve, to make first medium and second medium can only one-way flow; Described by-passing valve is two-way valve, is communicated with fast with for flowing main road to enable bypass branch with the main road that refluxes; Described first variable adjustment valve, the second variable adjustment valve and the 3rd variable adjustment valve are triple valve, to make pipe-line system structure simplify, reduce production cost, are also beneficial to the operation of controller simultaneously.
As further improvement of this embodiment, stream main road is also provided with the first-class gauge 801 for detecting cleaning agent flow and the first pressure sensor 901 for detecting nitrogen pressure to described confession; Described backflow main road is also provided with the second gauge 802 for detecting cleaning agent flow and the second pressure sensor 902 for detecting nitrogen pressure, described confession is provided with bypass branch 10 between stream main road and backflow main road, described bypass branch is provided with by-passing valve 11, described first-class gauge, second gauge, the first pressure sensor, the second pressure sensor and by-passing valve by signal transmission to controller.
Concrete, when first medium circulates in pipeline, if the flow of first-class gauge detection detect much larger than second gauge flow time, controller opens by-passing valve is with the internal impact of minimizing to automotive air-conditioning system; If during the flow that the flow of first-class gauge detection detects much smaller than second gauge, controller opens by-passing valve is to accelerate the cleaning to automotive air-conditioning system inside; Meanwhile, if when the flow that the transmission of second gauge comes is 0, then the cleaning dosage in explanation automotive air-conditioning system is little or do not have, then illustrate that cleaning agent has all been retracted in fluid reservoir.When second medium circulates in pipeline, if first pressure sensor detection force value detect much larger than the second pressure sensor force value time, controller opens by-passing valve is to reduce the pressure of automotive air-conditioning system inside; Simultaneously, be previously stored with pressure set points (identical with atmospheric pressure) in the controller, if the force value model that the second pressure sensor transmission comes is less than pressure set points, then illustrate that the nitrogen amount of automotive air-conditioning system inside is little or do not have, then description nitrogen is all regained as in air accumulator.
Present invention also offers a kind of method utilizing the first path of automotive air-conditioning system cleaning equipment to carry out automotive air-conditioning system internal washing, comprise the steps:
(1) controller controls all valves and pump is in closed condition;
(2) controller controls the first magnetic valve and the second variable adjustment valve is opened, and the first variable adjustment valve is opened and is only communicated with for flow branch road with first, and its first medium is by supplying to flow branch road enter automotive air-conditioning system inside for flowing main road and first;
(3) controller controls the first pump startup, the 3rd variable adjustment valve is opened and is only communicated with the first pump, and its first medium is extracted out from automotive air-conditioning system inside, now, containing impurity in first medium;
(4) controller keeps this running status, and first medium enters purified treatment in filtering adsorpting device after the first backwater branch road; Now, not containing impurity in the first medium after purification, and then be admitted in fluid reservoir through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(5) controller controls the first closed electromagnetic valve, and first medium is all withdrawn in fluid reservoir under the work of the first pump, and last controller controls the first pump and cuts out; This completes the cleaning of the first step;
(6) controller controls the second magnetic valve and opens, and the 3rd variable adjustment valve is opened and is only communicated with the second pump, and its second medium is by entering automotive air-conditioning system inside for stream main road and first for stream branch road;
(7) controller controls the second pump startup, and its second medium is extracted out from automotive air-conditioning system inside, now, containing impurity in second medium;
(8) controller keeps this running status, and second medium enters purified treatment in filtering adsorpting device after the first backwater branch road; Now, not containing impurity in the second medium after evolution, and then be admitted in air accumulator through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(9) controller controls the second closed electromagnetic valve, and second medium is all withdrawn in air accumulator under the work of the second pump, and last controller controls the second pump and cuts out and other valves, completes the internal washing work of automotive air-conditioning system.
Present invention also offers a kind of method utilizing the alternate path of automotive air-conditioning system cleaning equipment to carry out automotive air-conditioning system internal washing, comprise the steps:
(1) controller controls all valves and pump is in closed condition;
(2) controller controls the first magnetic valve and the second variable adjustment valve is opened, and the first variable adjustment valve is opened and is only communicated with for flow branch road with second, and its first medium is by supplying to flow branch road enter automotive air-conditioning system inside for flowing main road and second;
(3) controller controls the first pump startup, the 3rd variable adjustment valve is opened and is only communicated with the first pump, and its first medium is extracted out from automotive air-conditioning system inside, now, containing impurity in first medium;
(4) controller keeps this running status, and first medium enters purified treatment in filtering adsorpting device after the second backwater branch road; Now, not containing impurity in the first medium after purification, and then be admitted in fluid reservoir through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(5) controller controls the first closed electromagnetic valve, and first medium is all withdrawn in fluid reservoir under the work of the first pump, and last controller controls the first pump and cuts out; This completes the cleaning of the first step;
(6) controller controls the second magnetic valve and opens, and the 3rd variable adjustment valve is opened and is only communicated with the second pump, and its second medium is by entering automotive air-conditioning system inside for stream main road and second for stream branch road;
(7) controller controls the second pump startup, and its second medium is extracted out from automotive air-conditioning system inside, now, containing impurity in second medium;
(8) controller keeps this running status, and second medium enters purified treatment in filtering adsorpting device after the second backwater branch road; Now, not containing impurity in the second medium after purification, and then be admitted in air accumulator through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(9) controller controls the second closed electromagnetic valve, and second medium is all withdrawn in air accumulator under the work of the second pump, and last controller controls the second pump and cuts out and other valves, completes the internal washing work of automotive air-conditioning system.
Certainly, its cleaning method can also control the first variable adjustment valve and all open, and to make all to be communicated with for flowing branch road with second for flowing branch road with first for stream main road, makes equipment can carry out the cleaning of two cover automotive air-conditioning system inside simultaneously.Meanwhile, arranging booster pump (not shown in FIG.) for stream branch road or second on stream branch road for stream main road or first, to accelerate the circulation of first medium or second medium, thus the object of raising equipment cleaning efficiency can also be reached.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an automotive air-conditioning system cleaning equipment, comprises casing, it is characterized in that: described equipment also comprise be located in casing for store first medium fluid reservoir, for the air accumulator that stores second medium and the pipe-line system be arranged in parallel; Described pipe-line system comprises for stream main road, backflow main road, first for flowing branch road, second for stream branch road, the first backflow branch road and the second backflow branch road;
The described stream main road that supplies is communicated with for flowing branch road for flowing branch road and second with first respectively by the first variable adjustment valve;
Described first is communicated with automotive air-conditioning system with the first backflow branch road for stream branch road, and described second is communicated with automotive air-conditioning system with the second backflow branch road for stream branch road;
Described first backflow branch road is communicated with backflow main road by filtering adsorpting device with the second backflow branch road;
The port of export of described fluid reservoir is communicated with for flowing main road by the first magnetic valve, and its arrival end is communicated with backflow main road; The first pump flowed for ordering about first medium is provided with between the arrival end of described fluid reservoir and backflow main road;
Stream main road is also provided with the second variable adjustment valve to described confession, and described backflow main road is also provided with the 3rd variable adjustment valve, and the port of export of described air accumulator is communicated with the second adjustable valve by the second magnetic valve, and its arrival end is communicated with the 3rd adjustable valve; The second pump flowed for ordering about second medium is provided with between the arrival end of described air accumulator and the 3rd variable adjustment valve.
2. automotive air-conditioning system cleaning equipment according to claim 1, is characterized in that: described equipment also comprises the controller for controlling the first magnetic valve, the second magnetic valve, the first variable adjustment valve, the second variable adjustment valve, the 3rd variable adjustment valve, the first pump and the second pump operation state.
3. automotive air-conditioning system cleaning equipment according to claim 2, is characterized in that: described first medium is liquid cleaning agent; Described second medium is the nitrogen of gaseous state.
4. automotive air-conditioning system cleaning equipment according to claim 3, is characterized in that: be also provided with the heater for heated nitrogen between the port of export of described air accumulator and the second variable adjustment valve.
5. automotive air-conditioning system cleaning equipment according to claim 3, is characterized in that: be describedly also provided with the first-class gauge for detecting cleaning agent flow and the first pressure sensor for detecting nitrogen pressure on stream main road; Described backflow main road is also provided with the second gauge for detecting cleaning agent flow and the second pressure sensor for detecting nitrogen pressure, described first-class gauge, second gauge, the first pressure sensor and the second pressure sensor by signal transmission to controller.
6. automotive air-conditioning system cleaning equipment according to claim 1, is characterized in that: the material manufacturing described pipe-line system is stainless steel or copper.
7. automotive air-conditioning system cleaning equipment according to claim 1, is characterized in that: described first magnetic valve and the second magnetic valve are check valve; Described by-passing valve is two-way valve; Described first variable adjustment valve, the second variable adjustment valve and the 3rd variable adjustment valve are triple valve.
8. automotive air-conditioning system cleaning equipment according to claim 1, is characterized in that: be describedly provided with bypass branch between stream main road and backflow main road, and described bypass branch is provided with by-passing valve.
9. utilize the first path of automotive air-conditioning system cleaning equipment described in claim 2 to carry out the method for automotive air-conditioning system internal washing, comprise the steps:
(1) controller controls all valves and pump is in closed condition;
(2) controller controls the first magnetic valve and the second variable adjustment valve is opened, and the first variable adjustment valve is opened and is only communicated with for flow branch road with first, and its first medium is by supplying to flow branch road enter automotive air-conditioning system inside for flowing main road and first;
(3) controller controls the first pump startup, the 3rd variable adjustment valve is opened and is only communicated with the first pump, and its first medium is extracted out from automotive air-conditioning system inside, now, containing impurity in first medium;
(4) controller keeps this running status, and first medium enters purified treatment in filtering adsorpting device after the first backwater branch road; Now, not containing impurity in the first medium after purification, and then be admitted in fluid reservoir through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(5) controller controls the first closed electromagnetic valve, and first medium is all withdrawn in fluid reservoir under the work of the first pump, and last controller controls the first pump and cuts out; This completes the cleaning of the first step;
(6) controller controls the second magnetic valve and opens, and the 3rd variable adjustment valve is opened and is only communicated with the second pump, and its second medium is by entering automotive air-conditioning system inside for stream main road and first for stream branch road;
(7) controller controls the second pump startup, and its second medium is extracted out from automotive air-conditioning system inside, now, containing impurity in second medium;
(8) controller keeps this running status, and second medium enters purified treatment in filtering adsorpting device after the first backwater branch road; Now, not containing impurity in the second medium after purification, and then be admitted in air accumulator through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(9) controller controls the second closed electromagnetic valve, and second medium is all withdrawn in air accumulator under the work of the second pump, and last controller controls the second pump and cuts out and other valves, completes the internal washing work of automotive air-conditioning system.
10. utilize the alternate path of automotive air-conditioning system cleaning equipment described in claim 2 to carry out the method for automotive air-conditioning system internal washing, comprise the steps:
(1) controller controls all valves and pump is in closed condition;
(2) controller controls the first magnetic valve and the second variable adjustment valve is opened, and the first variable adjustment valve is opened and is only communicated with for flow branch road with second, and its first medium is by supplying to flow branch road enter automotive air-conditioning system inside for flowing main road and second;
(3) controller controls the first pump startup, the 3rd variable adjustment valve is opened and is only communicated with the first pump, and its first medium is extracted out from automotive air-conditioning system inside, now, containing impurity in first medium;
(4) controller keeps this running status, and first medium enters purified treatment in filtering adsorpting device after the second backwater branch road; Now, not containing impurity in the first medium after purification, and then be admitted in fluid reservoir through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(5) controller controls the first closed electromagnetic valve, and first medium is all withdrawn in fluid reservoir under the work of the first pump, and last controller controls the first pump and cuts out; This completes the cleaning of the first step;
(6) controller controls the second magnetic valve and opens, and the 3rd variable adjustment valve is opened and is only communicated with the second pump, and its second medium is by entering automotive air-conditioning system inside for stream main road and second for stream branch road;
(7) controller controls the second pump startup, and its second medium is extracted out from automotive air-conditioning system inside, now, containing impurity in second medium;
(8) controller keeps this running status, and second medium enters purified treatment in filtering adsorpting device after the second backwater branch road; Now, not containing impurity in the second medium after purification, and then be admitted in air accumulator through backflow main road again, continuous repeated washing automotive air-conditioning system, until the impurity of its inside is removed complete;
(9) controller controls the second closed electromagnetic valve, and second medium is all withdrawn in air accumulator under the work of the second pump, and last controller controls the second pump and cuts out and other valves, completes the internal washing work of automotive air-conditioning system.
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| CN201510455905.2A CN105013772B (en) | 2015-07-29 | 2015-07-29 | Cleaning device and method for car air conditioning system |
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