CN2393177Y - Refrigerator principle and fault demonstration device - Google Patents
Refrigerator principle and fault demonstration device Download PDFInfo
- Publication number
- CN2393177Y CN2393177Y CN 99243289 CN99243289U CN2393177Y CN 2393177 Y CN2393177 Y CN 2393177Y CN 99243289 CN99243289 CN 99243289 CN 99243289 U CN99243289 U CN 99243289U CN 2393177 Y CN2393177 Y CN 2393177Y
- Authority
- CN
- China
- Prior art keywords
- refrigerator
- evaporator
- switch
- temperature controller
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 claims abstract description 16
- 238000005057 refrigeration Methods 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 230000007257 malfunction Effects 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses a refrigerator principle and trouble presentation device, its box are made by double-deck transparent glass, and there is thermal-insulated material in the middle of, have installed a plurality of valves, manometer, voltmeter, ampere meter and switch in the refrigeration cycle pipeline and the control circuit of refrigerator, and the student can directly perceivedly see each pipeline, the circuit of refrigerator to the break-make demonstration various trouble of usable valve, switch, manometer, voltmeter and ampere meter can show the trouble directly perceivedly.
Description
The utility model relates to a kind of instruments used for education, particularly a kind of physics teaching demonstration instrument.
Along with popularizing of household electrical appliance, all offered the course of relevant household electrical appliance in the physics teaching of at present a lot of schools.In the course of being offered, not only require the student to understand the principle of some household electrical appliance, go back technology such as the certain maintenance of GPRS, maintenance, fault eliminating.Wherein household electric refrigerator is exactly one of content that is introduced in the household electrical appliance course.In teaching in the past, explanation and demonstration for refrigerator principle and fault all are to adopt demonstration board, with evaporator, condensers etc. are hung onboard, pattern with planar development is explained, and this and actual refrigerator gap are bigger, and refrigerator in kind can not be seen wherein much structures, this just understands the refrigerator principle to the student, and particularly how study judges that fault causes certain difficulty with keeping in repair.
The purpose of this utility model provides a kind of apparatus for demonstrating of allowing the student intuitively see the structure of refrigerator and being easy to demonstrate and explain breakdown of refrigerator, maintenance be convenient to.
The purpose of this utility model is realized by following technical scheme:
A kind of refrigerator principle and malfunction demo device, it comprises compressor, condenser, evaporator, filtrator, kapillary, temperature controller, structure according to general refrigerator between each parts connects, its improvements are: its casing adopts aluminium alloy type profile framework and double-layer transparent glass to make, wherein, there is the glass outer fringing in the outside of aluminum alloy frame, and glass outer abuts against on this fringing, glazing bead is arranged between the layer glass, and inner layer glass compresses and is fixed on the framework with aluminum strip.
Above-mentioned apparatus for demonstrating is at mounted valve and tensimeter respectively between filled cold-producing medium mouth of pipe place, condenser and the filtrator, between kapillary and the evaporator, between low pressure air suction pipe and the compressor, between the freezing and refrigeration evaporator.
Above-mentioned apparatus for demonstrating has been installed reometer, voltage table in electric circuit; Between temperature controller and the protector, the switch of having connected respectively between compressor and the starter, switch in parallel on temperature controller.
After the utility model adopts said structure, can see the pipeline relation in the refrigerator and the line of control circuit clearly by transparent casing; Adopt heat insulation measure that the heat-insulating property of casing is strengthened greatly, at room temperature, freezer temperature can reach-10 degree, near actual refrigerator; In pipeline, behind mounted valve and the tensimeter, various faults can be set artificially, the variation of each several part pressure occur in the process to observe fault; By the reometer in the circuit, voltage table and switch, fault can artificially be set easily, the current/voltage situation of change when observing various fault.
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is the casing diagrammatic cross-section;
Fig. 3 is the cooling cycle system synoptic diagram;
Fig. 4 is the illustrative circuitry synoptic diagram.
Casing of the present utility model as we can see from the figure adopts aluminium alloy type profile framework and double-layer transparent glass, in the outside of aluminum alloy frame 1 glass outer fringing 14 is arranged, glass outer 2 is leaned against on the glass outer fringing 14, press glazing bead 16, cover inner layer glass 2, compress, fix with aluminum strip 17 then. Dividing plate 25,27 is arranged in the casing of refrigerator, casing is divided into refrigerating chamber 18 and reefer 19.
Valve, tensimeter installation site and act on as follows:
Valve 9 and tensimeter 28 are installed in and fill cold-producing medium mouth place, can utilize valve 9 to bleed off a part of fluorine demonstration principal fault.Valve 11 and tensimeter 30 are installed between condenser 5 and the filtrator 6, close or part valve-off 11 can demonstrate that the pipeline high-pressure section stops up or half stifled fault.
Valve 10 and tensimeter 29 are installed between kapillary 7 and the evaporator 3, close or part valve-off 10 can demonstrate that the pipeline low-pressure section is stopped up or half stifled fault.
Valve 12 and tensimeter 31 are installed in the return line, close or part valve-off 12 can demonstrate that muffler stops up or half stifled fault.
Valve 13 is contained between refrigerating evaporator 3 and the refrigeration evaporator 4.Close or part valve-off 13 can be demonstrated obstruction and half plugging fault between freezing, the refrigeration evaporator.
When above-mentioned fault takes place, can from tensimeter, see the pressure changing the pipeline intuitively; But so situation of failure judgement.For example, when the demonstration high-pressure section stops up, but valve-off 11, analog filters 6 is stopped up, and at first can present tensimeter 30 indexes this moment and improve.All the other tables 28,29,31 indexes reduce, and until reducing to negative value, then because of not freezing, condenser 5 temperature descend, tensimeter 30 indexes fall after rise, because of all stopping up no longer refrigeration, also do not shut down certainly, when high-pressure section pressure increases simultaneously, increased load, the compressor sound oppressiveness, current index increases; When partly stifled, each gauge pressure changes to complete stifled similar, is that pressure amplitude is smaller, refrigeration variation, the corresponding reduction of filter surfaces temperature, even the cold dewfall frosting phenomenon that occurs.
Again for example, block between two evaporators, available valve-off 13 is demonstrated.During complete blocking up, tensimeter 29 pressure raise until identical with tensimeter 30 pressure, and tensimeter 28,31 pressure reduce until negative pressure, and refrigerating chamber 18, reefer 19 no longer freeze, and condenser 5 is not warm, does not shut down.When partly stifled, with valve 13 throttlings, tensimeter 30 pressure raise, and tensimeter 28,31 indexes reduce, refrigerating chamber 18 refrigeration variation, and reefer 19 appearance are than the large tracts of land frosting.
Control circuit of the present utility model is formed and effect:
The K switch 1 of between temperature controller 20 and protector 21, having connected, and on temperature controller 20 K switch 2 in parallel.Cut-off switch K1, can demonstrating temperature controller, to arrange temperature too high, the compressor 8 inoperative faults that the temperature controller circuit contact lost efficacy and causes.Connect K switch 1, K2, right demonstration temperature controller arranges temperature and crosses low or the contact adhesion, and adjustment screw tension etc. are machine halt trouble not.
Voltage table 23 and reometer 24 are installed in the main line of circuit, and voltage table 23 can indicate each voltage constantly, and the change in voltage in the step-down experiment.Reometer 24 can clearly illustrate starting current and working current because of stop up, starter is malfunctioning and situation of change during the step-down experiment.
Claims (3)
1. refrigerator principle and malfunction demo device, it comprises compressor [8], condenser [5], evaporator [3], filtrator [6], kapillary [7], temperature controller [20] etc., structure according to general refrigerator between each parts connects, it is characterized in that: its casing adopts aluminium alloy type profile framework and double-layer transparent glass to make, wherein, there is glass outer fringing [14] in the outside of aluminum alloy frame [1], glass outer [2] abuts against on this fringing, glazing bead [16] is arranged between the layer glass, and inner layer glass compresses and is fixed on the framework [1] with aluminum strip [17].
2. malfunction demo device according to claim 1 is characterized in that: between filled cold-producing medium mouth of pipe place, condenser [5] and the filtrator [6], between kapillary [7] and the evaporator [3], between low pressure air suction pipe [26] and the compressor [8], between refrigerating evaporator [3] and the refrigeration evaporator [4] valve and tensimeter have been installed respectively.
3. malfunction demo device according to claim 2; it is characterized in that; reometer [24], voltage table [23] have been installed in the main line of circuit; between temperature controller [20] and protector [21]; the switch of between compressor [8] and starter [22], having connected respectively, and gone up a switch in parallel at temperature controller [20].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243289 CN2393177Y (en) | 1999-09-21 | 1999-09-21 | Refrigerator principle and fault demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243289 CN2393177Y (en) | 1999-09-21 | 1999-09-21 | Refrigerator principle and fault demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393177Y true CN2393177Y (en) | 2000-08-23 |
Family
ID=34029619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99243289 Expired - Fee Related CN2393177Y (en) | 1999-09-21 | 1999-09-21 | Refrigerator principle and fault demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2393177Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761920A (en) * | 2014-02-18 | 2014-04-30 | 郑州牧业工程高等专科学校 | Refrigerating system fault simulation experiment set |
| CN111882975A (en) * | 2020-06-12 | 2020-11-03 | 绍兴市城投再生资源有限公司 | Solid model for demonstrating light well point dewatering filter pipe siltation accident treatment process |
| CN113066352A (en) * | 2021-03-31 | 2021-07-02 | 广东电网有限责任公司电力科学研究院 | Capacitive voltage divider for training and defect testing method thereof |
-
1999
- 1999-09-21 CN CN 99243289 patent/CN2393177Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761920A (en) * | 2014-02-18 | 2014-04-30 | 郑州牧业工程高等专科学校 | Refrigerating system fault simulation experiment set |
| CN103761920B (en) * | 2014-02-18 | 2016-05-18 | 郑州牧业工程高等专科学校 | A kind of breakdown of refrigeration system analogue experiment installation |
| CN111882975A (en) * | 2020-06-12 | 2020-11-03 | 绍兴市城投再生资源有限公司 | Solid model for demonstrating light well point dewatering filter pipe siltation accident treatment process |
| CN113066352A (en) * | 2021-03-31 | 2021-07-02 | 广东电网有限责任公司电力科学研究院 | Capacitive voltage divider for training and defect testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |