CN103632600A - Air conditioning refrigeration technology multi function continuous training device - Google Patents

Air conditioning refrigeration technology multi function continuous training device Download PDF

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Publication number
CN103632600A
CN103632600A CN201210306566.8A CN201210306566A CN103632600A CN 103632600 A CN103632600 A CN 103632600A CN 201210306566 A CN201210306566 A CN 201210306566A CN 103632600 A CN103632600 A CN 103632600A
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China
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refrigerant
storage tank
air conditioner
conditioner refrigerating
recovery
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CN201210306566.8A
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张宪金
王军成
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BEIJING YINGJIN ERA TECHNOLOGY Co Ltd
BEIJING VOCATIONAL COLLEGE OF LABOUR AND SOCIAL SECURITY
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BEIJING YINGJIN ERA TECHNOLOGY Co Ltd
BEIJING VOCATIONAL COLLEGE OF LABOUR AND SOCIAL SECURITY
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Priority to CN201210306566.8A priority Critical patent/CN103632600A/en
Publication of CN103632600A publication Critical patent/CN103632600A/en
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Abstract

The invention provides an air conditioning refrigeration technology multi function continuous training device. The device is mainly composed of a compressor, high and low pressure oil separators, an oil storage tank, a filter, a refrigerant recovery storage tank, a cooling heat exchanger, a heat regenerator, a subcooler, a vacuum pump, a capillary, a pressure controller, a multi-position two-way control valve and an electric three-position two-way valve and the like, wherein the main parts are connected through pipes. When refrigerant recovery is carried out, boiling and condensation heat of a recovered refrigerant are fully used. High and low pressure oil separators of two different structures are used, thus recovered frozen oil and frozen oil in the device are separated from each other, and the operation stability of the device is enhanced. Through the opening states of the vacuum pump, the pressure controller, the electric three-position two-way valve and a flexible hose connector with a stop valve, air conditioning refrigeration training device vacuum pumping, refrigerant filling, device emptying, refrigerant recovery storage tank replacing and vacuum pumping and other operation tasks are flexibly realized, and the purpose of refrigeration air conditioning technology continuous training is realized.

Description

The multi-functional continuous actual training device of air conditioner refrigerating technology
Technical field
The present invention relates to the multi-functional continuous actual training device of a kind of air conditioner refrigerating technology.Belong to operation of air conditioning systems technical field.
Background technology
Operation of air conditioning systems has been widely used in the various aspects of social life, how effectively to cultivate operation of air conditioning systems advanced techniques personnel the economic development of China will be played to very important effect.College student is when study air conditioner refrigerating technology at present, and its Practical training equipment adopts business shaped article more and is equipped with all kinds of scattered instruments, and this just makes troubles to the management work of Training Room.In order to meet student's class teaching requirement, not only require Training Room space large, before real training, setup time is long.And owing to often will equipment being adjusted and be operated, the cold-producing medium causing and refrigeration oil leak not only can cause environmental pollution, economic waste, also serious to affect teachers and students healthy.
Summary of the invention
In order to overcome, existing colleges and universities' air conditioner refrigerating training skill chamber requisite space is large, real training setup time is long, the shortcomings such as economic waste in environmental pollution and real training process, the technology of the present invention provides the multi-functional continuous actual training device of a kind of air conditioner refrigerating technology existing air conditioner refrigerating Practical training equipment that can closely cooperate, and not only can realize recovery, the filtration and dry of cold-producing medium and refrigeration oil.Also can carry out the emptying of air conditioner refrigerating Practical training equipment and device simultaneously, vacuumize and a series of operation task such as cold-producing medium filling, realize the continuous real training task of student to air conditioner refrigerating Practical training equipment.
The technical scheme that the multi-functional continuous actual training device of air conditioner refrigerating technology adopts is: by critical pieces such as compressor, high and low pressure oil separator, fuel reserve tank, filtrator, refrigerant-recovery storage tank and cooling heat exchanger, regenerator, subcooler, vacuum pump, kapillary, pressure controller, multidigit two logical operation valves and electronic three two-way valves, by pipeline, connected and composed; There are two corrosion-resistant flexible pipes (1 of high-voltage flexible, 2), wherein one end of one is connected to condensator outlet (51) or reservoir (52) exit of air conditioner refrigerating Practical training equipment, one end of other one is connected in the suction line (53) of air conditioner refrigerating Practical training equipment, article two, the corrosion-resistant flexible pipe (1 of high-voltage flexible, 2) other one end respectively with being linked in sequence by pipeline of flexible hose connector (3,4) with stop valve, retaining valve (5,6).After linking together, the other end of retaining valve (5,6) is connected in series successively by pipeline with sight glass (42), filtrator (7), current limliting step-down kapillary (10).
Current limliting step-down kapillary (10) is closely around on the connecting tube between hydraulic oil separation vessel (21) and regenerator (14), the front filtrator (7) that arranges of current limliting kapillary (10) is connected to pressure controller (8) and tensimeter (9) on pipeline between filtrator (7) and current limliting step-down kapillary (10).The other end of current limliting step-down kapillary (10) is directly connected with the import of refrigerant-recovery storage tank cooling heat exchanger (12).
Current limliting step-down kapillary also can adopt three group (10,10-1,10-2) or many groups, by kapillary connector (46,47) be in series and be closely around on the connecting tube between hydraulic oil separation vessel (21) and regenerator (14), kapillary connector (46,47) be connected with each minute end of multidigit two logical operation valves (45), logical another common port of operation valve (45) of multidigit two is connected with the import of refrigerant-recovery storage tank cooling heat exchanger (12).
Refrigerant-recovery storage tank cooling heat exchanger (12) adopts low rib coil to be fixedly mounted in refrigerant-recovery storage heat exchange box (36), refrigerant-recovery storage tank (34) is placed in refrigerant-recovery storage heat exchange box (36) with refrigerant-recovery storage tank cooling heat exchanger (12) is concentric, and the space of leaving 2-5cm between tank body and refrigerant-recovery storage tank cooling heat exchanger (12) is filled with neutral liquid heat transferring medium in this space; Refrigerant-recovery storage tank (34) bottom arranges mass sensor (35) in order to refrigerant-recovery measuring control.
The outlet of refrigerant-recovery storage tank cooling heat exchanger (12) is connected with low pressure oil separation vessel (16) import after connecting successively by pipeline with the low-pressure side of sight glass (13), regenerator (14) by the corrosion-resistant flexible pipe of high-voltage flexible (11).The outlet of low pressure oil separation vessel (16) is sequentially connected with the low-pressure inlet pipe of refrigerant-recovery compressor (20) with sight glass (43) by pipeline.In low pressure oil separation vessel (16), establish oil separator well heater (15), the refrigeration oil after separation enters oil storage barrel (18) through retaining valve (17).
Refrigerant-recovery compressor (20) high-pressure exhaust pipe is connected with hydraulic oil separation vessel (21), and isolated refrigeration oil returns to compressor by retaining valve (22) through the spill port of compressor.The outlet of hydraulic oil separation vessel (21) enters the high-pressure side of regenerator (14) through High Temperature High Pressure gas exhaust duct and by pipeline, is connected successively with the import of device for drying and filtering (25) with the subcooler (23) with blower fan (24);
Device for drying and filtering (25) outlet is divided into two-way ,Yi road and is connected with compressor liquid-spraying cooling electric magnet valve (37), is connected to the motor Liquid injection cooling interface of compressor.By being placed in the on-state of temperature controller (38) the automatic control compressor Liquid injection cooling solenoid valve (37) of compressor electric motor, in order to carry out cooling protection when compressor (20) motor overheating.Another road of device for drying and filtering (25) outlet and sight glass (26), retaining valve (27) are connected in series successively by the B end of pipeline and electronic three two-way valves (28).
The A end of electronic three two-way valves (28) is connected with the flexible hose connector (29) with stop valve by pipeline, is provided with pressure controller (31) and tensimeter (32) in order to the recovery of automatic control cryogen and vacuumizing refrigerant-recovery storage tank (34) on this pipeline section.Corrosion-resistant flexible pipe (30) one ends of high-voltage flexible are connected to flexible hose connector (29), and the other end is connected with the stop valve (33) being placed on refrigerant-recovery storage tank (34).
The C end of electronic three two-way valves (28) is connected by the same sight glass of pipeline (48) one end, sight glass (48) other end is parallel to be provided with two flexible hose connectors with stop valve (39,49) and to be connected to respectively the corrosion-resistant flexible pipe of high-voltage flexible (40,50); Wherein flexible pipe (40) connects vacuum pump (41), and flexible pipe (50) is connected to the cold-producing medium filler (54) of air conditioner refrigerating Practical training equipment.
The useful result of the present invention is: when the refrigeration oil of air conditioner refrigerating Practical training equipment and refrigerant-recovery, installed abundant and utilized evaporation and the condenser heat of the cold-producing medium that reclaims farthest to save the energy; In refrigerant-recovery process, refrigerant-recovery storage tank is cooled always, therefore tank body pressure is relatively low, has reduced the requirement to refrigerant-recovery storage tank; Because refrigerant-recovery storage tank cooling heat exchanger adopts low rib coil and is fixed together with refrigerant-recovery storage heat exchange box, and leave the space of 2-5cm with refrigerant-recovery storage tank, so the cooling of refrigerant-recovery storage tank is to carry out heat interchange by the neutral liquid medium in this space.Meanwhile, because be provided with mass sensor in refrigerant-recovery storage tank bottom, so be convenient to replacing and the metering of refrigerant-recovery storage tank; Again, because device has adopted the oil separator of two different structures of high and low pressure, refrigeration oil in the refrigeration oil of air conditioner refrigerating Practical training equipment and device is separate, strengthened the stability of compressor operating in device, and the cold-producing medium reclaiming and refrigeration oil all passed through dry, filter, regeneration processes; Finally, by vacuum pump, pressure controller and electronic three two-way valves, can realize flexibly emptying and a series of operation task such as vacuumizing of refrigerant-recovery storage tank the vacuumizing of air conditioner refrigerating Practical training equipment, cold-producing medium filling, device; Whole apparatus structure is compact to be controlled simply, by the air conditioner refrigerating Practical training equipment with traditional, combine closely, solved on student's air conditioner refrigerating Practical training equipment and carried out continuous real training problem, saved the setup time before real training, reduced the economic waste in environmental pollution and real training process.Meanwhile, owing to greatly having shortened the setup time of job, therefore reduced Training Room to air conditioner refrigerating Practical training equipment quantitative requirement, thereby reduced the requirement to Training Room space.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the technology of the present invention is further illustrated.
The multi-functional continuous actual training device system diagram of Fig. 1 embodiment 1 air conditioner refrigerating technology
The connection layout of the multi-functional continuous actual training device of Fig. 2 air conditioner refrigerating technology and air conditioner refrigerating Practical training equipment
Equipment layout detail drawing in Fig. 3 refrigerant-recovery storage heat exchange box
The multi-functional continuous actual training device system diagram of Fig. 4 embodiment 2 air conditioner refrigerating technology
In figure: the corrosion-resistant flexible pipe of 1,2,11,30,40,50 high-voltage flexible; 3,4,29,39, the 49 flexible hose connectors with stop valve; 5,6,17,22,27 retaining valves; 7 filtrators; 25 devices for drying and filtering; 8,31 pressure controllers; 9,32 tensimeters; 10,10-1,10-2 kapillary; 12 refrigerant-recovery storage tank cooling heat exchangers; 13,26,42,43,48 sight glasss; 14 regenerators; 15 oily separating heaters; 16 low pressure oil separation vessels; 18 oil storage barrels; 19,33 stop valves; 20 compressors; 21 hydraulic oil separation vessels; 23 subcoolers; 24 blower fans; 28 electronic three two-way valves, 34 refrigerant-recovery storage tanks; 35 mass sensors; 36 refrigerant-recovery storage heat exchange box; 37 compressor liquid-spraying cooling electric magnet valves, 38 temperature controllers; 44 refrigerant-recovery storage tank locating rings; The logical operation valve of 45 multidigit two; 46,47 kapillary connectors; 51 air conditioner refrigerating Practical training equipment condensers; 52 air conditioner refrigerating Practical training equipment reservoirs; The air intake duct of 53 air conditioner refrigerating Practical training equipments; The cold-producing medium filler of 54 air conditioner refrigerating Practical training equipments
Embodiment
Shown in Fig. 1,2,3, the embodiment of specific embodiment 1 is as follows:
As shown in Figure 2, there are two corrosion-resistant flexible pipes (1 of high-voltage flexible, 2), wherein one end of one is connected to condensator outlet (51) or reservoir (52) exit of air conditioner refrigerating Practical training equipment, one end of other one is connected in the suction line (53) of air conditioner refrigerating Practical training equipment, article two, the corrosion-resistant flexible pipe (1 of high-voltage flexible, 2) other one end respectively with flexible hose connector (3 with stop valve, 4), retaining valve (5,6) is linked in sequence by pipeline.After linking together, the other end of retaining valve (5,6) is connected in series successively by pipeline with sight glass (42), filtrator (7), current limliting step-down kapillary (10).
As shown in Figure 1, the other end of retaining valve (5,6) is connected in series by pipeline successively with sight glass (42), filtrator (7), current limliting step-down kapillary (10) after linking together.Current limliting step-down kapillary (10) is closely around on the connecting tube between hydraulic oil separation vessel (21) and regenerator (14), filtrator (7) is set before current limliting kapillary (10), on pipeline between filtrator (7) and current limliting step-down kapillary (10), is connected to pressure controller (8) and tensimeter (9).The other end of current limliting step-down kapillary (10) is directly connected with the import of refrigerant-recovery storage tank cooling heat exchanger (12).
As shown in Figure 3, refrigerant-recovery storage tank cooling heat exchanger (12) adopts low rib coil to be fixedly mounted in refrigerant-recovery storage heat exchange box (36), refrigerant-recovery storage tank (34) is placed in refrigerant-recovery storage heat exchange box (36) with refrigerant-recovery storage tank cooling heat exchanger (12) is concentric, and the space of leaving 2-5cm between tank body and refrigerant-recovery storage tank cooling heat exchanger (12) is filled with neutral liquid heat transferring medium in this space; Refrigerant-recovery storage tank (34) bottom arranges mass sensor (35) in order to refrigerant-recovery measuring control.
The outlet of refrigerant-recovery storage tank cooling heat exchanger (12) is connected with low pressure oil separation vessel (16) import after connecting successively by pipeline with the low-pressure side of sight glass (13), regenerator (14) by the corrosion-resistant flexible pipe of high-voltage flexible (11).The outlet of low pressure oil separation vessel (16) is sequentially connected with the low-pressure inlet pipe of refrigerant-recovery compressor (20) with sight glass (43) by pipeline.In low pressure oil separation vessel (16), establish oil separator well heater (15), the refrigeration oil after separation enters oil storage barrel (18) through retaining valve (17).
Refrigerant-recovery compressor (20) high-pressure exhaust pipe is connected with hydraulic oil separation vessel (21), and isolated refrigeration oil returns to compressor by retaining valve (22) through the spill port of compressor.The outlet of hydraulic oil separation vessel (21) enters the high-pressure side of regenerator (14) through High Temperature High Pressure gas exhaust duct and by pipeline, is connected successively with the import of device for drying and filtering (25) with the subcooler (23) with blower fan (24);
Device for drying and filtering (25) outlet is divided into two-way ,Yi road and is connected with compressor liquid-spraying cooling electric magnet valve (37), is connected to the motor Liquid injection cooling interface of compressor.By being placed in the on-state of temperature controller (38) the automatic control compressor Liquid injection cooling solenoid valve (37) of compressor electric motor, in order to carry out cooling protection when compressor (20) motor overheating.Another road of device for drying and filtering (25) outlet and sight glass (26), retaining valve (27) are connected in series successively by the B end of pipeline and electronic three two-way valves (28).
The A end of electronic three two-way valves (28) is connected with the flexible hose connector (29) with stop valve by pipeline, is provided with pressure controller (31) and tensimeter (32) in order to the recovery of automatic control cryogen and vacuumizing refrigerant-recovery storage tank (34) on this pipeline section.Corrosion-resistant flexible pipe (30) one ends of high-voltage flexible are connected to flexible hose connector (29), and the other end is connected with the stop valve (33) being placed on refrigerant-recovery storage tank (34).
The C end of electronic three two-way valves (28) is connected by the same sight glass of pipeline (48) one end, sight glass (48) other end is parallel to be provided with two flexible hose connectors with stop valve (39,49) and to be connected to respectively the corrosion-resistant flexible pipe of high-voltage flexible (40,50); Wherein flexible pipe (40) connects vacuum pump (41), and flexible pipe (50) is connected to the cold-producing medium filler (54) of air conditioner refrigerating Practical training equipment.
The cold-producing medium of embodiment 1 and refrigeration oil reclaimer operation step and principle:
In the time need to reclaiming the cold-producing medium of air conditioner refrigerating Practical training equipment, first open stop valve (3,4), cold-producing medium enters in sight glass (42) by retaining valve (5,6) mixed flow, in sight glass, can observe easily the refrigerant condition entering.Because the cold-producing medium reclaiming is that gas, liquid two-phase distribute mostly, for avoiding cold-producing medium and refrigeration oil to reclaim compressor (20), occur that liquid hammer damages and be provided with current limliting kapillary (10).For fear of current limliting kapillary (10), stop up, before it, be provided with filtrator (7) is set.Cold-producing medium enters refrigerant-recovery storage tank cooling heat exchanger (12) after kapillary (10) current limliting step-down thereby storage tank (34) is reclaimed in the boiling heat absorption cooling refrigeration agent of expanding.
Then, cold-producing medium enters regenerator (14) by sight glass (13) and further absorbs heat and make it all be converted into gaseous refrigerant.Owing to inevitably containing some refrigeration oil in refrigerant-recovery process, be mixed with the gaseous refrigerant of refrigeration oil after entering low pressure oil separation vessel (16), refrigeration oil is separated, and in order to strengthen the refrigeration oil that the effect of oil separator is provided with after oil separator well heater (15) separation in low pressure oil separation vessel (16), through retaining valve (17), enters oil storage barrel (18).
Then, through the gaseous refrigerant filtering, oily separating treatment is crossed, enter compressor (20), after compressor isentropic compression, the superheated vapor refrigerant that becomes High Temperature High Pressure enters hydraulic oil separation vessel (21), refrigeration oil in compressor (20) is separated, and through the spill port of compressor, returned to compressor by retaining valve (22).High-temperature high-pressure overheat steam cold-producing medium after undue oil processing carries out after exchange heat through gas exhaust duct and the current limliting kapillary (10) around thereon, and the saturated liquid that exchange heat becomes high pressure low temperature is carried out with gas, liquid mix refrigerant from low-pressure side in the high-pressure side that enters regenerator (14).Then, the saturated liquid cold-producing medium of high pressure low temperature enters the further heat exchange of subcooler (23) becomes the liquid refrigerant with certain degree of supercooling.By changing the running speed of blower fan (24) or the heat exchange amount of on off control subcooler (23), make the certain degree of liquid subcooling of maintaining of cold-producing medium.
Finally, cold-producing medium supercooled liquid drying filtrator (25) further after dry, filtration treatment, enters through sight glass (26), the B-A passage of electronic three two-way valves of retaining valve (27) (28), stop valve 33 recovery operation that refrigerant-recovery storage tank (34) completes refrigeration.
After finishing with recovery in refrigeration removal process, in order to prevent that the cold-producing medium refluence access to plant of refrigerant-recovery storage tank (34) is provided with retaining valve (27,5,6) in system as shown in Figure 1.In compressor removal process, by being placed in the on-state of temperature controller (38) the automatic control compressor Liquid injection cooling solenoid valve (37) of compressor electric motor, the motor overheating of compressor (20) is carried out to cooling protection.
Cold-producing medium and refrigeration oil recycling and control method: by observing the force value of tensimeter (9) and the force value of set pressure controller (8), differentiate the condition finishing that reclaims.The relative pressure that general refrigerant-recovery finishes can stop compressor (20) and blower fan (24) between-0.01bar~0.01bar.When the force value of tensimeter (32) is too high, the ceiling value by set pressure controller (31) stops compressor (20) and works, stops refrigerant-recovery work.The ceiling value of pressure controller (31) is different according to reclaiming different cold-producing mediums, and general relative pressure is set between 9bar~12bar.
The multi-functional continuous actual training device of air conditioner refrigerating technology empties operation: when the air conditioner refrigerating Practical training equipment of use different types cold-producing medium is carried out to cold-producing medium and refrigeration oil recovery, be just necessary the residual cold-producing medium in the multi-functional continuous actual training device of air conditioner refrigerating technology to empty.Emptying step is as follows: first, close the stop valve of the flexible hose connector (3,4,49) with stop valve.Subsequently, open the stop valve with the flexible hose connector (39) of stop valve, electronic three two-way valves (28) are converted to B-C passage and open, B-A pathway closure; Then, open vacuum pump (41) the multi-functional continuous actual training device of air conditioner refrigerating technology is emptied to processing; Finally, when the force value of tensimeter (9) is when vacuum tightness is 0.9bar~0.95bar, close the stop valve with the flexible hose connector (39) of stop valve, and just electronic three two-way valves (28) are converted to A-B passage and open, B-C pathway closure, stops the work that empties that vacuum pump finishes the multi-functional continuous actual training device of air conditioner refrigerating technology.
Air conditioner refrigerating Practical training equipment vacuum pumping: use the multi-functional continuous actual training device of air conditioner refrigerating technology to vacuumize processing to air conditioner refrigerating Practical training equipment, vacuumize step: first, open the flexible hose connector (3 with stop valve, 4,49) stop valve, electronic three two-way valves (28) are converted to B-C passage and open, A-B pathway closure.Subsequently, open vacuum pump (41) the multi-functional continuous actual training device of air conditioner refrigerating technology and air conditioner refrigerating Practical training equipment are vacuumized to processing; Finally, when the force value of tensimeter tensimeter (9) is when vacuum tightness is 0.9bar~0.95bar, close the flexible hose connector (3 with stop valve, 4,39,49) stop valve, and just electronic three two-way valves (28) are converted to A-B passage and open, B-C pathway closure, stops vacuum pump and finishes to vacuumize work.
The cold-producing medium filling operation of air conditioner refrigerating Practical training equipment: use the multi-functional continuous actual training device of air conditioner refrigerating technology to carry out cold-producing medium filling to air conditioner refrigerating Practical training equipment and process, cold-producing medium filling step is as follows: first, close the flexible hose connector (3 with stop valve, 4,39) stop valve, electronic three two-way valves (28) are converted to AC passage and open, BA pathway closure.Subsequently, open the stop valve with the flexible hose connector (49) of stop valve; Then, open the stop valve (33) on 34 refrigerant-recovery storage tanks, air conditioner refrigerating Practical training equipment is carried out to cold-producing medium filling work; Finally, according to the mass sensor (35) that is placed in refrigerant-recovery storage tank (34) bottom, judge the end of cold-producing medium filling task.
The replacing of refrigerant-recovery storage tank (34) with vacuumize treatment step and method: in the refrigerant-recovery process to air conditioner refrigerating Practical training equipment, when the cold-producing medium in refrigerant-recovery storage tank (34) is full of, just need to change it, the new refrigerant of changing reclaims storage tank must be through vacuumizing processing, as follows in conjunction with Fig. 1 method of operating: first, close with the stop valve of the flexible hose connector (29) of stop valve and the stop valve 33 on refrigerant-recovery storage tank, open the corrosion-resistant flexible pipe 30 of high-voltage flexible, the refrigerant-recovery storage tank (34) that is full of cold-producing medium is taken out from refrigerant-recovery storage heat exchange box (36), and the refrigerant-recovery storage tank more renewing, connecting hose is placed in refrigerant-recovery storage heat exchange box (36), then, close the flexible hose connector (49) with stop valve, electronic three two-way valves (28) are converted to A-C passage and open, A-B pathway closure.Subsequently, open flexible hose connector (39), open vacuum pump (41) and vacuumize; Finally, when the force value of tensimeter (32) is when vacuum tightness is 0.9bar~0.95bar, close the stop valve with the flexible hose connector (39) of stop valve, and electronic three two-way valves (28) are converted to A-C pathway closure, A-B passage is opened, and stops vacuum pump and finishes to vacuumize work.
Shown in Fig. 2,3,4, specific embodiment 2 its technical characterictics are: current limliting step-down kapillary adopts three group (10,10-1,10-2) or many groups, by kapillary connector (46,47) be in series and be closely around on the connecting tube between hydraulic oil separation vessel (21) and regenerator (14), kapillary connector (46,47) be connected with each minute end of multidigit two logical operation valves (45), logical another common port of operation valve (45) of multidigit two is connected with the import of refrigerant-recovery storage tank cooling heat exchanger (12).Specific embodiment 2 all the other embodiments are identical with embodiment 1.The benefit of implementing is like this: when large and medium-sized air conditioner refrigerating Practical training equipment is carried out to refrigerant-recovery, can be according to the state of refrigerant-recovery, by adjusting current limliting step-down drag characteristic capillaceous, accelerate the speed of refrigerant-recovery and the stability of the multi-functional continuous actual training device of air conditioner refrigerating technology.

Claims (9)

1. the multi-functional continuous actual training device of air conditioner refrigerating technology is characterized in that: by critical pieces such as compressor, high and low pressure oil separator, fuel reserve tank, filtrator, refrigerant-recovery storage tank and cooling heat exchanger, regenerator, subcooler, vacuum pump, kapillary, pressure controller, multidigit two logical operation valves and electronic three two-way valves, by pipeline, connected and composed.
2. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: current limliting step-down kapillary (10) is closely around on the connecting tube between hydraulic oil separation vessel (21) and regenerator (14), the front filtrator (7) that arranges of current limliting kapillary (10), on pipeline between filtrator (7) and current limliting step-down kapillary (10), be connected to pressure controller (8) and tensimeter (9), the other end of current limliting step-down kapillary (10) is directly connected with the import of refrigerant-recovery storage tank cooling heat exchanger (12).
3. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: current limliting step-down kapillary also can adopt three group (10,10-1,10-2) or many groups, by kapillary connector (46,47) be in series and be closely around on the connecting tube between hydraulic oil separation vessel (21) and regenerator (14), kapillary connector (46,47) be connected with each minute end of multidigit two logical operation valves (45), logical another common port of operation valve (45) of multidigit two is connected with the import of refrigerant-recovery storage tank cooling heat exchanger (12).
4. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: refrigerant-recovery storage tank cooling heat exchanger (12) adopts low rib coil to be fixedly mounted in refrigerant-recovery storage heat exchange box (36), refrigerant-recovery storage tank (34) is placed in refrigerant-recovery storage heat exchange box (36) with refrigerant-recovery storage tank cooling heat exchanger (12) is concentric, and between tank body and refrigerant-recovery storage tank cooling heat exchanger (12), leave the space of 2-5cm, in this space, be filled with neutral liquid heat transferring medium, refrigerant-recovery storage tank (34) bottom arranges mass sensor (35) in order to refrigerant-recovery measuring control.
5. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: the outlet of low pressure oil separation vessel (16) is sequentially connected with the low-pressure inlet pipe of refrigerant-recovery compressor (20) with sight glass (43) by pipeline, in low pressure oil separation vessel (16), establish oil separator well heater (15), the refrigeration oil after separation enters oil storage barrel (18) through retaining valve (17).
6. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: refrigerant-recovery compressor (20) high-pressure exhaust pipe is connected with hydraulic oil separation vessel (21), and isolated refrigeration oil returns to compressor by retaining valve (22) through the spill port of compressor.
7. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: device for drying and filtering (25) outlet is divided into two-way, one tunnel is connected with compressor liquid-spraying cooling electric magnet valve (37) to the motor Liquid injection cooling interface of compressor, and another road and sight glass (26), retaining valve (27) are connected in series successively by the B end of pipeline and electronic three two-way valves (28).
8. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: the A end of electronic three two-way valves (28) is connected with the flexible hose connector (29) with stop valve by pipeline, is provided with pressure controller (31) and tensimeter (32) in order to the recovery of automatic control cryogen and vacuumizing refrigerant-recovery storage tank (34) on this pipeline section.
9. according to the multi-functional continuous actual training device of the air conditioner refrigerating technology described in right 1, it is characterized in that: the C of electronic three two-way valves (28) is connected by the same sight glass of pipeline (48) one end, sight glass (48) other end is parallel to be provided with two flexible hose connectors with stop valve (39,49) and to be connected to respectively the corrosion-resistant flexible pipe (40 of high-voltage flexible, 50), wherein flexible pipe (40) connects vacuum pump (41), and flexible pipe (50) is connected to the cold-producing medium filler (54) of air conditioner refrigerating Practical training equipment.
CN201210306566.8A 2012-08-27 2012-08-27 Air conditioning refrigeration technology multi function continuous training device Pending CN103632600A (en)

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CN201210306566.8A CN103632600A (en) 2012-08-27 2012-08-27 Air conditioning refrigeration technology multi function continuous training device

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Application Number Priority Date Filing Date Title
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CN109764578A (en) * 2019-02-01 2019-05-17 深圳市泰路科技有限公司 The compressor oil recovery system and method for air-conditioning system
CN110610635A (en) * 2019-11-01 2019-12-24 河南牧业经济学院 Comprehensive intelligent training platform for small refrigeration system
CN114739051A (en) * 2014-09-09 2022-07-12 开利公司 Cooler compressor oil regulation

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CN101470991A (en) * 2007-12-29 2009-07-01 海尔集团公司 Teaching model apparatus of air conditioner system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114739051A (en) * 2014-09-09 2022-07-12 开利公司 Cooler compressor oil regulation
CN109764578A (en) * 2019-02-01 2019-05-17 深圳市泰路科技有限公司 The compressor oil recovery system and method for air-conditioning system
CN110610635A (en) * 2019-11-01 2019-12-24 河南牧业经济学院 Comprehensive intelligent training platform for small refrigeration system

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