CN201886685U - Comprehensive simulation experiment device of refrigerator refrigerating system - Google Patents
Comprehensive simulation experiment device of refrigerator refrigerating system Download PDFInfo
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- CN201886685U CN201886685U CN2010202565189U CN201020256518U CN201886685U CN 201886685 U CN201886685 U CN 201886685U CN 2010202565189 U CN2010202565189 U CN 2010202565189U CN 201020256518 U CN201020256518 U CN 201020256518U CN 201886685 U CN201886685 U CN 201886685U
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Abstract
The utility model relates to a comprehensive simulation experiment device of a refrigerator refrigerating system, which is used for demonstrative experiment of experiment teaching for students, and comprises a compressor, a first glass tube, a second glass tube, a condenser, a drying filter, a thermal expansion valve, a first evaporator, a second evaporator, a temperature sensing bag, a gas-liquid separator and the like, wherein the outlet of the compressor is communicated with the first glass tube, and the outlet of the first glass tube is communicated with the condenser which is communicated with the second glass tube; the outlet of the second glass tube is communicated with the drying filter; the outlet of the filter is divided into two paths, wherein the first path is connected with the first evaporator by four circuits connected in parallel, the second path is communicated with the second evaporator by two circuits connected in parallel, and the two paths are finally converged together to be communicated with the gas-liquid separator; and the outlet of the gas-liquid separator is communicated with the inlet of the compressor. The comprehensive simulation experiment device of the refrigerator refrigerating system helps the students to form concept and master knowledge and skill so as to develop the abilities of comprehensively analyzing and solving problems of the students.
Description
Technical field
The utility model relates to refrigerator refrigeration system integrated simulation experiment device, be mainly used in student's experimental teaching, carry out lecture experiment, help the student to form notion, acquire knowledge and technical ability, observation ability, self-learning ability, analysis-by-synthesis problem and the problem-solving ability of cultivating the student.
Background technology
The basic procedure of at present common refrigerator as shown in Figure 1, the refrigerant gas of the High Temperature High Pressure that compressor 1 produces, enter condenser 3 and be cooled to refrigerant liquid, cooled high-temperature high-pressure refrigerant liquid enters in first kapillary 7 by solenoid valve 15 through device for drying and filtering 5 and dams, the refrigerant liquid of low-temp low-pressure enters refrigerator evaporator 21 after damming, absorb the heat in the reefer 21, enter freezer evaporator 22 by three-way diverter valve 20 afterwards, the heat that absorption refrigerating is indoor enters compressor 1 with the evaporation of the form of gas subsequently and compresses.
Solenoid valve 3 is with kapillary 4 conductings when the temperature in the reefer 7 surpasses setting value, and the refrigerant liquid of High Temperature High Pressure enters evaporator 6, absorbs the heat in the evaporator 6, enters freezer evaporator 9 by three-way diverter valve 8 afterwards.
Existing refrigerator system all is to use shell seal, student to be difficult for getting information about its inner structure and principle of work, nor can realize the simulation under the various fault condition, is difficult for reaching the destination of study.
The utility model content
The purpose of this utility model is to overcome the deficiency that conventional refrigerator can not be simulated various operating modes, and a kind of refrigerator refrigeration system integrated simulation experiment device for the practical teaching use is provided.
The technical scheme that native system adopts is as follows:
Native system comprises that compressor 1, first glass tube 2, second glass tube 4, condenser 3, device for drying and filtering 5, first heating power expansion valve 6, second heating power expansion valve 11, first kapillary 7, second kapillary 8, three capillary 13, first evaporator 9, second evaporator 14, first peep liquid mirror 10, second and peep liquid mirror 17, first bulb 12, second bulb 16, solenoid valve 15, gas-liquid separator 18, dual-pressure controller 19.Wherein compressor 1 outlet is connected with first glass tube, 2 inlets, 2 outlets of first glass tube are connected with condenser 3, condenser 3 is connected with the inlet of second glass tube 4, and the outlet of second glass tube 4 is connected with the inlet of device for drying and filtering 5, and the outlet of device for drying and filtering 5 is divided into two-way:
The first via is connected with the inlet of first evaporator 9 by the circuit of four parallel connections, and the outlet of first evaporator 9 is connected with first and peeps liquid mirror 10; Be in series with first heating power expansion valve 6 and the valve on article one pipeline in described four parallel lines, be in series with first kapillary 7 and the valve on the second pipeline, article three, be in series with second kapillary 8 and the valve on the pipeline, article four, only be connected with valve on the pipeline, the length of first kapillary 7 on the second pipeline is longer than the length of second kapillary 8 on the 3rd pipeline; The outlet that the export pipeline of first evaporator 9 is provided with first bulb, 12, the first heating power expansion valves 6 is connected with first bulb 12.
The second tunnel circuit by two parallel connections is connected with the inlet of second evaporator 14, the outlet of second evaporator 14 is connected with second and peeps liquid mirror 17, be in series with second heating power expansion valve 11 and the valve on article one pipeline in described two parallel lines, be in series with three capillary 13 and valve on the second pipeline, the outlet that is furnished with second bulb, 16, the second heating power expansion valves on the outlet conduit of second evaporator 14 is connected with second bulb 16.
Final two roads pool together and are connected with the inlet of gas-liquid separator 18 again after export pipeline that i.e. first export pipeline and second of peeping first evaporator 9 at liquid mirror 10 places peeps second evaporator 14 at liquid mirror 17 places is connected, and the outlet of gas-liquid separator 18 is connected with the inlet of compressor 1.Compressor 1 outlet also is connected by the inlet of solenoid valve 15 with second evaporator 14, and the outlet of second evaporator 14 is connected with the inlet of gas-liquid separator 18.
The two ends of dual-pressure controller 19 are connected with the entrance and exit of compressor respectively.
In the utility model, system pipeline adopts special-purpose refrigeration soft pipeline to connect, and reduces pad, thereby improves the reliability of system.Refrigerating capacity is for being not less than 100W, and dual-evaporator system, cold house's volume are not less than 0.2 cubic metre, and outer wall is the thick color steel of 50mm, and heat transfer coefficient is about 0.37W/m
2K.First evaporator 9 is provided with state and the flow of transparent glass tube observation panel with the cold-producing medium in the observing system, first evaporator 9 (0 degree) adopts 4 kinds of throttle styles in parallel: heating power expansion valve (normal model is regulated to ensure normal discharge/degree of superheat), kapillary is (long, demonstrate it and do not have a flow regulating function), kapillary is (too short, demonstrate it and do not have a flow regulating function), valve (demo system obstruction).The height measurement mechanism is set in the system, temperature sensor, can measure evaporating temperature/pressure, condensing temperature/pressure, air-breathing/delivery temperature/pressure, the degree of superheat, refrigerant flow, all parameters show that at panel board evaporator 14 (10 degree) adopts EKC+AKV electric expansion valve temperature control system to replace the thermal expansion valve system.Evaporator 14 (10 degree) can be simulated icing and be adopted two kinds of molten ice modes: electricity-heated defrosting, hot-gas bypass defrost.Adopt speed-changing draught fan to change the protection of evaporation/condensation pressure initiating system high-low pressure.Can simulate evaporator expands stifled.Can simulate the evaporator deficiency in draught.Can analog filters dirty stifled.Can the segment of analog compression machine high pressure, low pressure is cut off (with the needle-valve that dams).Can the too high protection of simulated exhaust temperature.Can simulate cold-producing medium dash to annotate not enough/dash annotate excessive.Simulation heating power expansion valve ice is stifled.
The utility model is mainly used in student's experimental teaching, carries out lecture experiment, helps the student to form notion, acquire knowledge and technical ability, observation ability, self-learning ability, analysis-by-synthesis problem and the problem-solving ability of cultivating the student.
Description of drawings
Fig. 1 domestic refrigerator system flowchart
Fig. 2 refrigerator refrigeration system integrated simulation experiment device
Among the figure: 1, compressor, 2, first glass tube, 3, condenser, 4, second glass tube, 5, device for drying and filtering, 6, first heating power expansion valve, 7, first kapillary, 8, second kapillary, 9, first evaporator, 10, first peeps the liquid mirror, 11, second heating power expansion valve, 12, first temperature-sensitive is full, and 13, three capillary, 14, second evaporator, 15, solenoid valve, 16, second temperature-sensitive is full, and 17, second peeps the liquid mirror, and 18, gas-liquid separator, 19, dual-pressure controller, 21, refrigerator evaporator, 20, three-way diverter valve, 22, freezer evaporator.
Embodiment
Below in conjunction with accompanying drawing 2 is that the utility model is described in further detail for example:
As shown in Figure 2, native system comprises that compressor 1, first glass tube 2, second glass tube 4, condenser 3, device for drying and filtering 5, first heating power expansion valve 6, second heating power expansion valve 11, first kapillary 7, second kapillary 8, three capillary 13, first evaporator 9, second evaporator 14, first peep liquid mirror 10, second and peep liquid mirror 17, first bulb 12, second bulb 16, solenoid valve 15, gas-liquid separator 18, dual-pressure controller 19.Wherein, the refrigerant gas that compressor 1 produces High Temperature High Pressure is connected with the inlet of first glass tube 2, observe the refrigerant gas flow state by first glass tube 2, the outlet of first glass tube 2 is connected with the inlet of condenser 3, the refrigerant liquid condensation becomes liquid in condenser 3, the outlet of condenser 3 is connected with second glass tube 4, flow state by second glass tube, 4 observation refrigerant liquids, the outlet of second glass tube 4 is connected with device for drying and filtering 5, by the moisture in the device for drying and filtering 5 absorption refrigeration agent and remove impurity, the outlet of device for drying and filtering 5 is divided into two-way, the first via is simulated heating power expansion valve (normal model is regulated to ensure normal discharge/degree of superheat) respectively by the circuit of four parallel connections, kapillary is long, too short and the four kinds of situations of system congestion of kapillary, the outlet of parallel line is connected with the inlet of first evaporator 9, absorb the heat in first evaporator 9, the outlet of first evaporator 9 and first is peeped liquid mirror 9 and is connected, by first water cut of peeping cold-producing medium in liquid mirror 9 observing systems; The second the tunnel simulates two kinds of situations of heating power expansion valve (normal model is regulated to ensure normal discharge/degree of superheat), kapillary (demonstrate its do not have flow regulating function) respectively by the circuit of two parallel connections, the outlet of parallel line is connected with the inlet of second evaporator 14, absorb the heat in second evaporator 14, the outlet of second evaporator 14 and second is peeped liquid mirror 17 and is connected, by second water cut of peeping cold-producing medium in liquid mirror 17 observing systems, two roads converge to together and are connected with gas-liquid separator 18 subsequently.
Be in series with first heating power expansion valve 6 and the valve on article one pipeline in described four parallel lines, be in series with first kapillary 7 and the valve on the second pipeline, article three, be in series with second kapillary 8 and the valve on the pipeline, article four, only be connected with valve on the pipeline, the length of first kapillary 7 on the second pipeline is longer than the length of second kapillary 8 on the 3rd pipeline; The outlet that the export pipeline of first evaporator 9 is provided with first bulb, 12, the first heating power expansion valves 6 is connected with first bulb 12.
Be in series with second heating power expansion valve 11 and the valve on article one pipeline in described two parallel lines, be in series with three capillary 13 and valve on the second pipeline, the outlet that is furnished with second bulb, 16, the second heating power expansion valves on the outlet conduit of second evaporator 14 is connected with second bulb 16.
The two ends of dual-pressure controller 19 are connected with the entrance and exit of compressor respectively.
The cold-producing medium that gas-liquid separator 18 makes the gas-liquid separation assurance enter compressor is a gas, and the outlet of gas-liquid separator 18 is connected with the inlet of compressor 1.There is the automatic defrosting device in system when needs defrost, with the valve open in the middle of compressor and the solenoid valve, the refrigerant gas that is produced High Temperature High Pressure by compressor is connected with solenoid valve 15, the solenoid valve other end is connected with second evaporator 14, refrigerant gas by High Temperature High Pressure goes the frostization of second evaporator 14, the outlet of second evaporator 14 is connected with gas-liquid separator 18, the cold-producing medium that realization gas-liquid separation assurance enters compressor is a gas, the outlet of gas-liquid separator 18 is connected with the inlet of compressor, thereby finishes circulation.
Claims (1)
1. a refrigerator refrigeration system integrated simulation experiment device is characterized in that: comprise compressor (1), first glass tube (2), second glass tube (4), condenser (3), device for drying and filtering (5), first heating power expansion valve (6), second heating power expansion valve (11), first kapillary (7), second kapillary (8), three capillary (13), first evaporator (9), second evaporator (14), first peeps liquid mirror (10), second peeps liquid mirror (17), first bulb (12), second bulb (16), solenoid valve (15), gas-liquid separator (18), dual-pressure controller (19); Wherein: compressor (1) outlet is connected with first glass tube (2) inlet, first glass tube (2) outlet is connected with condenser (3), condenser (3) is connected with the inlet of second glass tube (4), the outlet of second glass tube (4) is connected with the inlet of device for drying and filtering (5), and the outlet of device for drying and filtering (5) is divided into two-way:
The first via is connected with the inlet of first evaporator (9) by the circuit of four parallel connections, and the outlet of first evaporator (9) is connected with first and peeps liquid mirror (10); Be in series with first heating power expansion valve (6) and valve on article one pipeline in described four parallel lines, be in series with first kapillary (7) and valve on the second pipeline, article three, be in series with second kapillary (8) and valve on the pipeline, article four, only be connected with valve on the pipeline, the length of first kapillary (7) on the second pipeline is longer than the length of second kapillary (8) on the 3rd pipeline; The export pipeline of first evaporator (9) is provided with first bulb (12), and the outlet of first heating power expansion valve (6) is connected with first bulb (12);
The second tunnel circuit by two parallel connections is connected with the inlet of second evaporator (14), the outlet of second evaporator (14) is connected with second and peeps liquid mirror (17), be in series with second heating power expansion valve (11) and valve on article one pipeline in described two parallel lines, be in series with three capillary (13) and valve on the second pipeline, be furnished with second bulb (16) on the outlet conduit of second evaporator (14), the outlet of second heating power expansion valve is connected with second bulb (16);
Final two-way pools together and is connected with the inlet of gas-liquid separator (18) again after export pipeline that i.e. first export pipeline and second of peeping first evaporator (9) at liquid mirror (10) place peeps second evaporator (14) at liquid mirror (17) place is connected, and the outlet of gas-liquid separator (18) is connected with the inlet of compressor (1); Compressor (1) outlet also is connected by the inlet of solenoid valve (15) with second evaporator (14), and the outlet of second evaporator (14) is connected with the inlet of gas-liquid separator (18);
The two ends of dual-pressure controller (19) are connected with the entrance and exit of compressor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202565189U CN201886685U (en) | 2010-07-02 | 2010-07-02 | Comprehensive simulation experiment device of refrigerator refrigerating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202565189U CN201886685U (en) | 2010-07-02 | 2010-07-02 | Comprehensive simulation experiment device of refrigerator refrigerating system |
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| CN201886685U true CN201886685U (en) | 2011-06-29 |
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| CN2010202565189U Expired - Fee Related CN201886685U (en) | 2010-07-02 | 2010-07-02 | Comprehensive simulation experiment device of refrigerator refrigerating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140083126A1 (en) * | 2011-06-14 | 2014-03-27 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| CN104077953A (en) * | 2014-06-27 | 2014-10-01 | 顺德职业技术学院 | Separating multi-cycle refrigerator control technology comprehensive training equipment |
| CN105575245A (en) * | 2016-03-11 | 2016-05-11 | 天津商业大学 | Visual refrigeration experiment teaching system for refrigerant pipe external condensation and evaporation |
| CN106057057A (en) * | 2016-07-14 | 2016-10-26 | 天津商业大学 | Refrigeration system multifunctional modularized base teaching decomposition experiment platform |
-
2010
- 2010-07-02 CN CN2010202565189U patent/CN201886685U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140083126A1 (en) * | 2011-06-14 | 2014-03-27 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| US9638443B2 (en) * | 2011-06-14 | 2017-05-02 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| CN104077953A (en) * | 2014-06-27 | 2014-10-01 | 顺德职业技术学院 | Separating multi-cycle refrigerator control technology comprehensive training equipment |
| CN105575245A (en) * | 2016-03-11 | 2016-05-11 | 天津商业大学 | Visual refrigeration experiment teaching system for refrigerant pipe external condensation and evaporation |
| CN106057057A (en) * | 2016-07-14 | 2016-10-26 | 天津商业大学 | Refrigeration system multifunctional modularized base teaching decomposition experiment platform |
| CN106057057B (en) * | 2016-07-14 | 2019-03-08 | 天津商业大学 | Refrigeration system multifunctional modular elementary teaching decomposition experiment platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20120702 |