CN107763944A - A kind of quickly defrosting method in cold chain transportation operation - Google Patents
A kind of quickly defrosting method in cold chain transportation operation Download PDFInfo
- Publication number
- CN107763944A CN107763944A CN201711058903.5A CN201711058903A CN107763944A CN 107763944 A CN107763944 A CN 107763944A CN 201711058903 A CN201711058903 A CN 201711058903A CN 107763944 A CN107763944 A CN 107763944A
- Authority
- CN
- China
- Prior art keywords
- evaporator
- transport case
- mesh resistive
- resistive silk
- silk
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
Abstract
The invention discloses a kind of quickly defrosting method in cold chain transportation operation, specifically comprise the following steps：The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature controller are installed in evaporator in cooling transport case, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality of expansion of metal formula temperature controller and the sealing of drainpipe；S2 frost layers detect：After 8 12h of compressor operating in transport case is cooled down, the surface of evaporator is observed, detects the thickness of frost layer, while compressor out of service；S3 is defrosted：According to the thickness of frost layer, by mesh resistive silk 5 10min of energization, mesh resistive silk heating power, frost layer fusing, while heat makes expansion of metal formula temperature controller be worked after 5 10min, disconnects the electrical connection of mesh resistive silk, stops defrosting and operates.The present invention can quickly remove the frost of evaporator surface in transport case in cold chain transportation, and defrosting rate is high, cooling transport case is kept good cooling effect.
Description
Technical field
The present invention relates to a kind of quickly defrosting method in cold chain transportation technical field, more particularly to cold chain transportation operation.
Background technology
Cold chain transportation refers in overall process is transported, either handling, change means of transportation, change packaging facilities etc.
Link, transported goods is all set to remain the transport of certain temperature.In medicine, vegetables and fruits, quick-frozen food, dairy produce and ice cream
And other items transportation in, it usually needs use cold chain transportation to avoid causing to go bad because of high temperature.In remote cold chain
In transport, the fluctuation of temperature is one of the main reason for causing goods quality decline, therefore, also needs to protect while low temperature is ensured
The stability of temperature is held, can just better ensure that goods does not damage because of temperature change.
While keeping temperature, particularly freezing and Refrigerated Transport, the compressor cooled down in transport case work long hours
Afterwards, the rate of heat exchange of cooling transport case in evaporator surface frosting, can be largely effected on, causes refrigerating capacity to decline, reduces cooling
Effect, so timely removing frosting seems particularly necessary.
The content of the invention
It is an object of the invention to provide a kind of quickly defrosting method in cold chain transportation operation, possess can quickly remove it is cold
In chain transport in transport case evaporator surface frost, the advantages of keeping good cooling effect, solving frost layer influences heat exchange
Efficiency, the problem of causing refrigerating capacity to decline and then influence cooling effect.
Quickly defrosting method in a kind of cold chain transportation operation according to embodiments of the present invention, specifically comprises the following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature control are installed in evaporator in cooling transport case
Device, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality and drainpipe of expansion of metal formula temperature controller
Sealing；
S2 frost layers detect：After the compressor operating 8-12h in transport case is cooled down, the surface of evaporator is observed,
Detect the thickness of frost layer, while compressor out of service；
S3 is defrosted：According to the thickness of frost layer, by the mesh resistive silk energization 5-10min in evaporator, net
Shape resistance wire heating power, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller
Worked after 5-10min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at
Drainpipe on evaporator is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented from causing evaporator
Damage.
On the basis of such scheme, the expansion of metal formula temperature controller in the S1 steps is connected with mesh resistive silk, and position
In the side of evaporator.
On the basis of such scheme, the observation to evaporator surface in the S2 steps is by being arranged on cooling transport case
Interior monitoring camera is realized.
On the basis of such scheme, in the S3 steps, when frost layer before mesh resistive silk energization 5-10min just
After melting completely, manual-lock mesh resistive silk heater circuit.
On the basis of such scheme, the cistern in the S4 steps is detachably connected with cooling transport case, Neng Gouji
When by cistern from cooling transport case in extract out.
On the basis of such scheme, the mesh resistive silk heater circuit is connected with external controlling switch.
On the basis of such scheme, the cistern bottom is provided with tiny leaking hole, in inconvenience by cistern from cold
But when transport case is extracted out, for earthward discharging the water in cistern.
On the basis of such scheme, the dwell time of the compressor is between 5-10min, after more than 10min, compression
Chance automatic start is freezed, while cuts off mesh resistive silk heater circuit.
The present invention has an advantageous effect in that compared with prior art：Compressor in cooling transport case works long hours
Afterwards, defrosting processing can be carried out in time, now compressor with the frost layer situation of Real Time Observation evaporator surface by monitoring camera
Out of service, by heating netted resistance wire, mesh resistive silk heating power produces heat, and frost layer is heated, frost layer by
Heat starts to melt, and the water after thawing is arranged into the cistern of cooling transport case bottom in time by drainpipe, will not be to evaporator
Cause to damage, after the work of mesh resistive silk, expansion of metal formula temperature controller be heated work, and it is electric can to disconnect mesh resistive silk in time
Road, compressor start normally freeze, while are provided with emergency method, after more than 10min, compressor meeting automatic running, and whole mistake
Journey can remove the frost of evaporator surface in time, and not influence to cool down the refrigerating capacity in transport case, have good cooling
Effect, it ensure that the freshness of goods, particularly food in cooling transport case.
Embodiment
For feature, technological means and the concrete function reached of the present invention can be further appreciated that, below with specific implementation
Mode is described in further detail to the present invention.
Embodiment 1
A kind of quickly defrosting method in cold chain transportation operation is present embodiments provided, is specifically comprised the following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature control are installed in evaporator in cooling transport case
Device, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality and drainpipe of expansion of metal formula temperature controller
Sealing；
S2 frost layers detect：After the compressor operating 8h in transport case is cooled down, the surface of evaporator is observed, detected
The thickness of frost layer, while compressor out of service；
S3 is defrosted：According to the thickness of frost layer, by the mesh resistive silk energization 5min in evaporator, netted electricity
Silk heating power is hindered, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller exist
Worked after 5min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at
Drainpipe on evaporator is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented from causing evaporator
Damage.
Expansion of metal formula temperature controller is connected with mesh resistive silk, and positioned at the side of evaporator.
Observation to evaporator surface is realized by the monitoring camera being arranged in cooling transport case.
After frost layer is just melted completely before mesh resistive silk energization 5min, the heating of manual-lock mesh resistive silk
Circuit.
Cistern is detachably connected with cooling transport case, in time can be extracted cistern out of cooling transport case out.
Mesh resistive silk heater circuit is connected with external controlling switch.
Cistern bottom is provided with tiny leaking hole, inconvenience by cistern from cooling transport case extract out when, for
Water in ground discharge cistern.
The dwell time of compressor is within 5min, after more than 5min, compressor meeting automatic start refrigeration, cuts off simultaneously
Mesh resistive silk heater circuit.
The good cooling results of transport case are cooled down in whole process, and defrosting rate final after detection can reach 95%.
Embodiment 2
A kind of quickly defrosting method in cold chain transportation operation is present embodiments provided, is specifically comprised the following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature control are installed in evaporator in cooling transport case
Device, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality and drainpipe of expansion of metal formula temperature controller
Sealing；
S2 frost layers detect：After the compressor operating 9h in transport case is cooled down, the surface of evaporator is observed, detected
The thickness of frost layer, while compressor out of service；
S3 is defrosted：According to the thickness of frost layer, by the mesh resistive silk energization 6.25min in evaporator, net
Shape resistance wire heating power, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller
Worked after 6.25min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at
Drainpipe on evaporator is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented from causing evaporator
Damage.
Expansion of metal formula temperature controller is connected with mesh resistive silk, and positioned at the side of evaporator.
Observation to evaporator surface is realized by the monitoring camera being arranged in cooling transport case.
After frost layer is just melted completely before mesh resistive silk energization 6.25min, manual-lock mesh resistive silk
Heater circuit.
Cistern is detachably connected with cooling transport case, in time can be extracted cistern out of cooling transport case out.
Mesh resistive silk heater circuit is connected with external controlling switch.
Cistern bottom is provided with tiny leaking hole, inconvenience by cistern from cooling transport case extract out when, for
Water in ground discharge cistern.
The dwell time of compressor is within 6.25min, after more than 6.25min, compressor meeting automatic start refrigeration, together
When cut off mesh resistive silk heater circuit.
The good cooling results of transport case are cooled down in whole process, and defrosting rate final after detection can reach 96%.
Embodiment 3
A kind of quickly defrosting method in cold chain transportation operation is present embodiments provided, is specifically comprised the following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature control are installed in evaporator in cooling transport case
Device, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality and drainpipe of expansion of metal formula temperature controller
Sealing；
S2 frost layers detect：After the compressor operating 10h in transport case is cooled down, the surface of evaporator is observed, examined
Survey the thickness of frost layer, while compressor out of service；
S3 is defrosted：It is netted by the mesh resistive silk energization 7.5min in evaporator according to the thickness of frost layer
Resistance wire heating power, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller exist
Worked after 7.5min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at
Drainpipe on evaporator is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented from causing evaporator
Damage.
Expansion of metal formula temperature controller is connected with mesh resistive silk, and positioned at the side of evaporator.
Observation to evaporator surface is realized by the monitoring camera being arranged in cooling transport case.
After frost layer is just melted completely before mesh resistive silk energization 7.5min, manual-lock mesh resistive silk adds
Heater circuit.
Cistern is detachably connected with cooling transport case, in time can be extracted cistern out of cooling transport case out.
Mesh resistive silk heater circuit is connected with external controlling switch.
Cistern bottom is provided with tiny leaking hole, inconvenience by cistern from cooling transport case extract out when, for
Water in ground discharge cistern.
The dwell time of compressor is within 7.5min, after more than 7.5min, compressor meeting automatic start refrigeration, simultaneously
Cut off mesh resistive silk heater circuit.
The good cooling results of transport case are cooled down in whole process, and defrosting rate final after detection can reach 97%.
Embodiment 4
A kind of quickly defrosting method in cold chain transportation operation is present embodiments provided, is specifically comprised the following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature control are installed in evaporator in cooling transport case
Device, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality and drainpipe of expansion of metal formula temperature controller
Sealing；
S2 frost layers detect：After the compressor operating 11h in transport case is cooled down, the surface of evaporator is observed, examined
Survey the thickness of frost layer, while compressor out of service；
S3 is defrosted：According to the thickness of frost layer, by the mesh resistive silk energization 8.75min in evaporator, net
Shape resistance wire heating power, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller
Worked after 8.75min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at
Drainpipe on evaporator is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented from causing evaporator
Damage.
Expansion of metal formula temperature controller is connected with mesh resistive silk, and positioned at the side of evaporator.
Observation to evaporator surface is realized by the monitoring camera being arranged in cooling transport case.
After frost layer is just melted completely before mesh resistive silk energization 8.75min, manual-lock mesh resistive silk
Heater circuit.
Cistern is detachably connected with cooling transport case, in time can be extracted cistern out of cooling transport case out.
Mesh resistive silk heater circuit is connected with external controlling switch.
Cistern bottom is provided with tiny leaking hole, inconvenience by cistern from cooling transport case extract out when, for
Water in ground discharge cistern.
The dwell time of compressor is within 8.75min, after more than 8.75min, compressor meeting automatic start refrigeration, together
When cut off mesh resistive silk heater circuit.
The good cooling results of transport case are cooled down in whole process, and defrosting rate final after detection can reach 95%.
Embodiment 5
A kind of quickly defrosting method in cold chain transportation operation is present embodiments provided, is specifically comprised the following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature control are installed in evaporator in cooling transport case
Device, while drainpipe is installed on an evaporator, detection mesh resistive silk, the quality and drainpipe of expansion of metal formula temperature controller
Sealing；
S2 frost layers detect：After the compressor operating 12h in transport case is cooled down, the surface of evaporator is observed, examined
Survey the thickness of frost layer, while compressor out of service；
S3 is defrosted：It is netted by the mesh resistive silk energization 10min in evaporator according to the thickness of frost layer
Resistance wire heating power, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller exist
Worked after 10min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at
Drainpipe on evaporator is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented from causing evaporator
Damage.
Expansion of metal formula temperature controller is connected with mesh resistive silk, and positioned at the side of evaporator.
Observation to evaporator surface is realized by the monitoring camera being arranged in cooling transport case.
After frost layer is just melted completely before mesh resistive silk energization 10min, manual-lock mesh resistive silk adds
Heater circuit.
Cistern is detachably connected with cooling transport case, in time can be extracted cistern out of cooling transport case out.
Mesh resistive silk heater circuit is connected with external controlling switch.
Cistern bottom is provided with tiny leaking hole, inconvenience by cistern from cooling transport case extract out when, for
Water in ground discharge cistern.
The dwell time of compressor is within 10min, after more than 10min, compressor meeting automatic start refrigeration, cuts simultaneously
Suspension shape Resistant heating circuit.
The good cooling results of transport case are cooled down in whole process, and defrosting rate final after detection can reach 96%.
Part is not described in detail by the present invention, is the known technology of those skilled in the art.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of quickly defrosting method in cold chain transportation operation, it is characterised in that specifically include following steps：
The S1 preparatory stages：Mesh resistive silk and expansion of metal formula temperature controller are installed in evaporator in cooling transport case, together
When drainpipe is installed on an evaporator, detection mesh resistive silk, the quality of expansion of metal formula temperature controller and drainpipe it is close
Feng Xing；
S2 frost layers detect：After the compressor operating 8-12h in transport case is cooled down, the surface of evaporator is observed, detected
The thickness of frost layer, while compressor out of service；
S3 is defrosted：According to the thickness of frost layer, by the mesh resistive silk energization 5-10min in evaporator, netted electricity
Silk heating power is hindered, caused heat melts the frost layer of evaporator surface, while heat makes expansion of metal formula temperature controller in 5-
Worked after 10min, disconnect the electrical connection of mesh resistive silk, stop defrosting operation, opening makes operation compressor be freezed；
S4 drainings：Heat melts frost layer caused by mesh resistive silk heating power, causes frost layer to be melted into water, by being located at evaporation
Drainpipe on device is introduced into the bottom cistern of cooling transport case, is discharged evaporator in time, is prevented that evaporator is caused to damage.
2. quickly defrosting method in a kind of cold chain transportation operation according to claim 1, it is characterised in that：The S1 steps
In expansion of metal formula temperature controller be connected with mesh resistive silk, and positioned at evaporator side.
3. quickly defrosting method in a kind of cold chain transportation operation according to claim 1, it is characterised in that：The S2 steps
In to evaporator surface observation by be arranged on cooling transport case in monitoring camera realize.
4. quickly defrosting method in a kind of cold chain transportation operation according to claim 1, it is characterised in that：Walked in the S3
In rapid, after frost layer is just melted completely before mesh resistive silk energization 5-10min, the heating of manual-lock mesh resistive silk
Circuit.
5. quickly defrosting method in a kind of cold chain transportation operation according to claim 1, it is characterised in that：Walked in the S4
Cistern in rapid is detachably connected with cooling transport case, in time can be extracted cistern out of cooling transport case out.
6. quickly defrosting method in a kind of cold chain transportation operation according to claim 4, it is characterised in that：The netted electricity
Resistance silk heater circuit is connected with external controlling switch.
7. quickly defrosting method in a kind of cold chain transportation operation according to claim 5, it is characterised in that：The cistern
Bottom is provided with tiny leaking hole, when inconvenience extracts cistern from cooling transport case out, for earthward discharging cistern
Interior water.
8. quickly defrosting method in a kind of cold chain transportation operation according to claim 1, it is characterised in that：The compressor
Dwell time between 5-10min, after more than 10min, compressor can automatic start refrigeration, while cut off mesh resistive silk
Heater circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058903.5A CN107763944A (en) | 2017-11-01 | 2017-11-01 | A kind of quickly defrosting method in cold chain transportation operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058903.5A CN107763944A (en) | 2017-11-01 | 2017-11-01 | A kind of quickly defrosting method in cold chain transportation operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107763944A true CN107763944A (en) | 2018-03-06 |
Family
ID=61272474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711058903.5A Pending CN107763944A (en) | 2017-11-01 | 2017-11-01 | A kind of quickly defrosting method in cold chain transportation operation |
Country Status (1)
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368784A (en) * | 2008-09-09 | 2009-02-18 | 广西壮族自治区农业科学院 | Ice house high-efficiency electric-heating defrosting device and use method |
| CN102221280A (en) * | 2011-06-16 | 2011-10-19 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN202692543U (en) * | 2012-02-13 | 2013-01-23 | 大连三洋冷链有限公司 | Soft heater strip embedded evaporator |
| CN103591751A (en) * | 2013-10-30 | 2014-02-19 | 西安交通大学 | Defrosting system of air cooling refrigerator and defrosting control method thereof |
| CN105605847A (en) * | 2016-03-04 | 2016-05-25 | 广东格兰仕集团有限公司 | Direct-cooling refrigerator and temperature control method and defrosting method thereof |
| CN106382785A (en) * | 2016-08-31 | 2017-02-08 | 成都鲜生活冷链物流有限公司 | Defrosting method for cold chain transport vehicle |
| CN106696810A (en) * | 2017-03-03 | 2017-05-24 | 天津商业大学 | Refrigerator car |
-
2017
- 2017-11-01 CN CN201711058903.5A patent/CN107763944A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368784A (en) * | 2008-09-09 | 2009-02-18 | 广西壮族自治区农业科学院 | Ice house high-efficiency electric-heating defrosting device and use method |
| CN102221280A (en) * | 2011-06-16 | 2011-10-19 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN202692543U (en) * | 2012-02-13 | 2013-01-23 | 大连三洋冷链有限公司 | Soft heater strip embedded evaporator |
| CN103591751A (en) * | 2013-10-30 | 2014-02-19 | 西安交通大学 | Defrosting system of air cooling refrigerator and defrosting control method thereof |
| CN105605847A (en) * | 2016-03-04 | 2016-05-25 | 广东格兰仕集团有限公司 | Direct-cooling refrigerator and temperature control method and defrosting method thereof |
| CN106382785A (en) * | 2016-08-31 | 2017-02-08 | 成都鲜生活冷链物流有限公司 | Defrosting method for cold chain transport vehicle |
| CN106696810A (en) * | 2017-03-03 | 2017-05-24 | 天津商业大学 | Refrigerator car |
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Application publication date: 20180306 |
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