CN203672034U - Centralized processing system for condenser heat of supermarket refrigerators - Google Patents
Centralized processing system for condenser heat of supermarket refrigerators Download PDFInfo
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- CN203672034U CN203672034U CN201320684886.7U CN201320684886U CN203672034U CN 203672034 U CN203672034 U CN 203672034U CN 201320684886 U CN201320684886 U CN 201320684886U CN 203672034 U CN203672034 U CN 203672034U
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Abstract
The utility model discloses a centralized processing system for condenser heat of supermarket refrigerators. The centralized processing system for condenser heat of the supermarket refrigerators comprises the refrigerators and a dissipated heat collection system, wherein each refrigerator comprises a compressor and a condenser. The dissipated heat collection system comprises a plurality of heat discharge pipelines, a plurality of fans, a plurality of temperature controller and a main, wherein each heat discharge pipeline corresponds to one condenser, each fan is used for transferring hot air around the corresponding condenser to the corresponding heat discharge pipeline, the temperature controllers are used for monitoring the temperature and controlling the fans to be started and shut down, and the main is used for collecting hot air in all the heat discharge pipelines. According to the centralized processing system for condenser heat of the supermarket refrigerators, thinking is carried out according to the overall heat cycle of a supermarket, and overall energy consumption is reduced; due to the facts that heat dissipation of the refrigerators is quickened, and the discharge speed of dissipated heat of the compressors is increased, working efficiency of the refrigerators is improved, and the cooling effect of the refrigerators is improved; switching between the hot air discharge mode and the hot air recycling mode is achieved through a first control valve, a second control valve and dissipated heat utilization pipelines, and applicability is improved.
Description
Technical field
The utility model relates to condensation heat administrative skill field, particularly relates to a kind of supermarket refrigerator condensation heat centralized processing system.
Background technology
Refrigerator mainly comprises refrigeration system and electric system, and wherein refrigeration system comprises: compressor, condenser, evaporimeter, capillary, cold-producing medium, device for drying and filtering.
Cold-producing medium is refrigeration working medium, is the porter of refrigeration system of refrigerator, realizes cold circulation in refrigeration system; Device for drying and filtering is the device of in-built molecular sieve, is used for residual moisture in dirt in filtration system and adsorption refrigerating agent; Compressor is to be mechanical energy by electric energy conversion, and driven by motor mechanical part turns round, and the refrigerant compression of low-temp low-pressure is become to the cold-producing medium of HTHP; Condenser is the heat abstractor of refrigeration system, and the high-temperature high-pressure refrigerant steam that compressor is discharged is in the heat radiation towards periphery of the overheated volume production of condenser back warp ground, is liquefied as liquid after making refrigerant vapour cooling; Capillary is generally made of copper, and pipe interior diameter, below 1mm, is connected between condenser and evaporimeter, plays an effect that can reduce the pressure of the high-pressure liquefaction cold-producing medium that compressor sends here; Evaporimeter is by the refrigerant liquid from capillary step-down, and under low pressure evaporation, becomes gas by liquid, and the heat in evaporimeter respiratory box reaches the object of refrigeration.
Refrigeration Cycle of Refrigerator mainly divides Four processes, is respectively compression process, condensation process, throttling process and evaporation process.Compression process is to be completed by compressor, and this part is also the main Power Consumption Source of refrigerator; Condensation process is completed by condenser, and this process is emitted amount of heat; Throttling process is completed by capillary, and the refrigerant liquid throttling of the high pressure that capillary is sent condenser here, middle temperature (approaching indoor temperature) becomes the refrigerant liquid of low pressure, low temperature (wherein containing portion gas); Evaporation process: the cold-producing medium after throttling flows through evaporimeter, thereby the heat in respiratory box, reach the object of refrigeration cool-down.
Along with a large amount of uses of fossil fuel, the energy resources that cause day by day exhaustion and environmental pollution have become the important restriction factor of human social.Energy-saving and emission-reduction, particularly building energy conservation receive increasing concern.Large supermarket can be equipped with food that a large amount of refrigerator (refrigerator is the another kind address of refrigerator, refrigerator) is used for storing the freezing or refrigeration of various needs conventionally for preserving food, uses Air-condition system control indoor temperature simultaneously.The angle that stands in separately single refrigerator usefulness due to traditional refrigerator making manufacturer considers to think deeply in conjunction with the thermal cycle of supermarket entirety, and the condensation heat that refrigerator produces does not obtain correct processing, thereby has increased the overall energy consumption in supermarket.As shown in Figure 1, this figure is the process chart of the condensation heat that in current supermarket, refrigerator produces.Refrigerator can produce a large amount of condensation heat in the time of work, it is indoor that this part heat energy is directly discharged into supermarket, need to maintain uniform temperature by air-conditioning system because supermarket is indoor, therefore the caloric requirement that refrigerator work produces is phoresied outdoor by air-conditioning system, thereby increase the load of air-conditioning, caused unnecessary energy consumption.
Application publication number is that the patent documentation of CN103292556A discloses a kind of refrigerator heat collector, it mainly comprises refrigerator, preheating water tank, attemperater three parts, compressor in refrigerator, condenser, capillary, device for drying and filtering, evaporimeter become closed-loop path to connect, and condenser is placed in preheating water tank inside; The used heat that the utility model has effectively utilized condenser to produce heats the water in preheating water tank, in the time that water temperature reaches the comfort temperature that human body sensory arrives, make the current direction attemperater in preheating water tank, now people just can use almost constant domestic hot-water of temperature in attemperater.Application publication number is that the patent documentation of CN101749919A discloses condensation heat utilization system refrigerator and the condensation heat that a kind of condensation heat producing can be to refrigeration for refrigerator time utilizes and utilizes mode, having solved the condensation heat of refrigerator in prior art is dispersed in extraneous air, a large amount of wastes of energy are caused, and cause to some extent the shortcoming of the variation of environment to outside drain, whole system is arranged in same housing, in housing, be separated into heat utilization chamber and low temperature chamber, the evaporimeter at suction port of compressor place is arranged in the position of refrigerator low temperature chamber, the condenser at compressor outlet place is directly arranged in the position of heat utilization chamber, the heat that condenser distributes directly offers cabinet chamber and heats, condenser is directly close to the outer wall of heat utilization chamber, the distance of shortening heat radiation delivery like this, can utilize to large extent condensation heat, also can reduce the extra input of cabinet being heated to required energy, save the energy, also reduced the discharge to outside amount of heat, lower the impact on surrounding air.But above-mentioned two patents utilize mode can not well be applicable to supermarket to condensation heat, and after utilizing the equipment of condensation heat to reach capacity, the utilization ratio of condensation heat is just reduced greatly, condensation heat still can exert an influence to external environment condition.
Utility model content
For the problems referred to above, the utility model provides the centralized management system of a kind of supermarket refrigerator condensation heat, recycles or is disposed to outside, supermarket, thereby reach the object of energy-saving and emission-reduction after condensation heat is collected.
The technical scheme that the utility model is taked is as follows:
A kind of supermarket refrigerator condensation heat centralized processing system, comprises some refrigerators and heat radiation gathering system, and each refrigerator comprises compressor and condenser, and described heat radiation gathering system comprises:
Some heat removal pipelines, every corresponding condenser of heat removal pipeline;
Total pipeline, has at least one section upwards to extend, for collecting the hot-air of all heat removal pipelines.
When refrigerator work, condenser can produce amount of heat, and the temperature of condenser ambient air can be higher.Utilize the power that pulls up of stack effect, the hot-air of condenser periphery can be transferred in heat removal pipeline, and each heat removal pipeline enters total pipeline by hot-air again, finally by total pipeline, hot-air discharge chamber is outer or hot-air is utilized again.
As preferably, described heat removal pipeline is provided with the funnel shaped mouth of calling prisoners in after letting them out for exercise near one end of condenser.Hot-air better can be introduced in heat removal pipeline by the funnel shaped mouth of calling prisoners in after letting them out for exercise.
As preferably, described heat radiation gathering system also comprises some heat shields, is all mounted with a condenser, a compressor in each heat shield.Can farthest prevent that by heat shield the heat that condenser and compressor produce from entering in supermarket,
As preferably, described heat radiation gathering system also comprises:
Some fans, are arranged in heat shield, between condenser and heat removal pipeline, for the hot-air of condenser periphery is transferred to corresponding heat removal pipeline;
Some temperature controllers, are used for monitoring temperature control the opening and closing of fan.Detect the temperature of condenser ambient air by temperature controller, in the time that temperature arrives the threshold values of setting, temperature controller can be controlled fan work, and the hot-air of condenser periphery is transferred in heat removal pipeline
As preferably, described heat shield is provided with air and enters hole, is also provided with and an exhaust vent that the mouth of calling prisoners in after letting them out for exercise fixedly docks.Enter hole and exhaust vent is realized the circulation of air in heat shield by air, guarantee air energy proper flow.
As preferably, described air enters hole and is arranged on heat shield internal gas pressure lowest part, and described exhaust vent is arranged on heat shield internal gas pressure highest point.Air enters hole and is arranged on air pressure lowest part, be arranged so that like this pressure that air enters hole place air is less than the pressure of heat shield extraneous air, this can facilitate air that external pressure is higher to enter air to enter hole, and can prevent that the hotter air in heat shield inside from entering hole by air and discharging; Exhaust vent is arranged on air pressure highest point, like this setting more the hot-air by heat shield of piece be expelled in heat removal pipeline; Determining of heat shield internal gas pressure lowest part and highest point position can simulate really by Fluid Mechanics Computation.
Also comprise loose heat utilization system, described loose heat utilization system comprises:
The first control valve, is installed on total pipeline, and the unlatching that is used for controlling total pipeline is with closed;
Some heat radiations utilize pipeline, are connected to total pipeline, are used for being communicated with hot-air;
Hot energy consumption equipment, utilizes pipeline to be connected with heat radiation, utilizes the hot-air work in hot channel;
Some the second control valves, each the second control valve correspondence is arranged on a heat radiation and utilizes on pipeline, is used for controlling heat radiation and utilizes the unlatching of pipeline with closed.
The opening and closing of the first control valve control total pipeline is adjusted the opening and closing of whole loose heat utilization system with this, in the time that the first control valve is closed by total pipeline, described total pipeline can not be expelled to hot-air outdoor, now hot-air utilizes pipeline to enter in hot energy consumption equipment by heat radiation, and can control the opening and closing of each heat energy utilization pipeline by the second control valve, realize hot-air is recycled with this.Can discharge and still recycle these two kinds of patterns and switch hot-air by the first control valve, in the time that thermal energy consumption equipment does not need work, can directly open total pipeline hot-air is discharged, reduce the energy consumption of supermarket air-conditioning with this; In the time that thermal energy consumption equipment uses, by the closed total pipeline of the first control valve, open that heat radiation that is connected with thermal energy consumption equipment and utilize the second upper control valve of pipeline, carry out the recycling to hot-air.
As preferably, described total pipeline has at least one section vertically to arrange, vertical height is 4800mm～6000mm.
As preferably, the length of every heat removal pipeline is 150mm～250mm, the parallel distribution of each heat removal pipeline, and distance between adjacent two heat removal pipelines is 1200mm～1800mm.。
As preferably, the outer surface of described heat removal pipeline and total pipeline is all coated with thermal insulation layer.Can farthest reduce the heat loss of hot-air at heat removal pipeline and total pipeline by thermal insulation layer, this can not only reduce the impact of hot-air on supermarket environment, also can improve the efficiency of hot-air recycling.
As preferably, described total pipeline is communicated to that outdoor end and is connected with the exhaust duct in supermarket.This can reduce the length of total pipeline, and has strengthened the efficiency of total pipeline discharge hot-air.
The beneficial effects of the utility model are: think deeply from supermarket overall thermal cycle perspective, reduced overall energy consumption; By accelerating the heat radiation of refrigerator and the mass rate of emission that compressor dispels the heat, improve refrigerator operating efficiency, increase refrigerator cooling-down effect and can avoid the overheated peeling paint causing of heat extraction device, paint-like flavour disperse, and near the drawback such as excess Temperature refrigerator, improve client's comfort level; Utilizing pipeline to realize hot-air by the first control valve, the second control valve and heat radiation discharges the switching that still recycles two kinds of patterns, has improved applicability.
Accompanying drawing explanation
Fig. 1 is the process chart of the condensation heat that in current supermarket, refrigerator produces;
Fig. 2 is the schematic diagram of the utility model supermarket refrigerator condensation heat centralized management system;
Fig. 3 is the front view of the utility model supermarket refrigerator condensation heat centralized management system;
Fig. 4 is the top view of the utility model supermarket refrigerator condensation heat centralized management system;
Fig. 5 is the left view of the utility model supermarket refrigerator condensation heat centralized management system;
Fig. 6 is the front view of layout in heat shield.
In figure, each Reference numeral is:
1. refrigerator, 2. total pipeline, 3. heat removal pipeline, 4. the first control valve, 5. heat radiation utilizes pipeline, 6. the second control valve, 7. hot energy consumption equipment, 8. heat shield, 9. compressor, 10. condenser, 11. temperature controllers, 12. fans, 13. exhaust vents, 14. mouths of calling prisoners in after letting them out for exercise, 15. air enter hole.
The specific embodiment
As shown in Fig. 3～6, a kind of supermarket refrigerator condensation heat centralized processing system, comprises four refrigerators 1, heat radiation gathering system and loose heat utilization system, and each refrigerator comprises a compressor 9 and a condenser 10, and heat radiation gathering system comprises:
Article four, the heat removal pipeline 3 that length is 200mm, every corresponding condenser 10 of heat removal pipeline, and the parallel distribution of each heat removal pipeline, the distance between adjacent two heat removal pipelines is 1500mm, the internal diameter of heat removal pipeline is 2 cun (66.7mm);
Four fans 12, for being transferred to corresponding heat removal pipeline by the hot-air of condenser periphery;
Four temperature controllers 11, are used for monitoring temperature control the opening and closing of fan;
Heat shield 8, for settling condenser 10, compressor 9 and fan 12.
As shown in Figure 6, heat removal pipeline is provided with the funnel shaped mouth 14 of calling prisoners in after letting them out for exercise near one end of condenser, hot-air better can be introduced in heat removal pipeline 3 by this funnel shaped mouth of calling prisoners in after letting them out for exercise.Heat shield 8 be provided with air enter hole 15 and with call prisoners in after letting them out for exercise mouthful 14 exhaust vents that fixedly dock 13.Simulate the gas pressure distribution situation of determining in heat shield by Fluid Mechanics Computation, air enters hole and is arranged on heat shield internal gas pressure lowest part, and exhaust vent is arranged on heat shield internal gas pressure highest point.Can farthest prevent that by heat shield the heat that condenser and compressor produce from entering in supermarket; Air enters hole and is arranged on heat shield internal gas pressure lowest part, the pressure that air enters hole place air is less than the pressure of heat shield extraneous air, this can facilitate air that external pressure is higher to enter air to enter hole 15, and can prevent that the hotter air in heat shield inside from entering hole by air and discharging; Exhaust vent is arranged on heat shield internal gas pressure highest point, like this setting more the hot-air by heat shield of piece be expelled in heat removal pipeline.
The utility model also comprises loose heat utilization system, and loose heat utilization system comprises:
The first control valve 4, is installed on total pipeline 2, and the unlatching that is used for controlling total pipeline is with closed;
Article two, heat radiation utilizes pipeline 5, is connected to total pipeline, is used for being communicated with hot-air;
Two hot energy consumption equipments 7, utilize pipeline to be connected with heat radiation, utilize the hot-air work in hot channel, and this thermal energy consumption equipment can defrosting food, for prepared food insulation, can be also hand driers etc.;
Two the second control valves 6, each the second control valve correspondence is arranged on a heat radiation and utilizes on pipeline, is used for controlling heat radiation and utilizes the unlatching of pipeline with closed.
The opening and closing of the first control valve control total pipeline is adjusted the opening and closing of whole loose heat utilization system with this, in the time that the first control valve is closed by total pipeline, total pipeline can not be expelled to hot-air outdoor, now hot-air utilizes pipeline to enter in hot energy consumption equipment by heat radiation, and can control the opening and closing of each heat energy utilization pipeline by the second control valve, realize hot-air is recycled with this.Can discharge and still recycle these two kinds of patterns and switch hot-air by the first control valve, in the time that thermal energy consumption equipment does not need work, can directly open total pipeline hot-air is discharged, reduce the energy consumption of supermarket air-conditioning with this; In the time that thermal energy consumption equipment uses, by the closed total pipeline of the first control valve, open that heat radiation that is connected with thermal energy consumption equipment and utilize the second upper control valve of pipeline, carry out the recycling to hot-air.
The outer surface of the utility model heat removal pipeline and total pipeline is all coated with thermal insulation layer, and total pipeline is connected with the exhaust duct in supermarket away from that end of heat removal pipeline.Can farthest reduce the heat loss of hot-air at heat removal pipeline and total pipeline by thermal insulation layer, this can not only reduce the impact of hot-air on supermarket environment, also can improve the efficiency of hot-air recycling; Total pipeline is connected on the exhaust duct in supermarket, and this can reduce the length of total pipeline, and has strengthened the efficiency of total pipeline discharge hot-air.
Specific works process, as shown in Figure 2, refrigerator work, condenser and compressor can produce amount of heat, and the temperature of condenser ambient air can be higher.Detect the temperature of condenser ambient air by temperature controller, in the time that temperature arrives the threshold values of setting, temperature controller can be controlled fan work, the hot-air of condenser periphery is transferred in heat removal pipeline, hot-air is entered total pipeline by each heat removal pipeline, finally utilizes stack effect by total pipeline, hot-air discharge chamber is outer or utilize pipeline that hot-air is drained on thermal energy consumption equipment by heat radiation.
The refrigerator data that provide according to magnificent Electrical Appliances Co., Ltd, on a current market, common refrigerator power consumption scope is 1-2KWh/24h, and its coefficient of refrigerating performance ε is between 1.1-1.5.In theoretical calculating, the power consumption of getting refrigerator is 1.5KWh/24h(and supposes that this part electric weight is mainly used in refrigeration), coefficient of refrigerating performance ε is 1.2.The condensation heat heat dissipation capacity that calculates refrigerator condenser is 3.3KWh/24h, and freezer compressor heat radiation is 0.49KWh/24h, and the power of ventilating fan is 10W.Under existence conditions, the condensation heat that supermarket refrigerator produces, by air-conditioning refrigeration system processing, is got the coefficient of refrigerating performance ε 1=2.6 of air-conditioning, and the power consumption of air-conditioning is 1.46KWh/24h.If adopt the utility model supermarket refrigerator condensation heat centralized management system, suppose the heat radiation of the condensation heat of condenser and compressor to be produced completely to outside, supermarket, power consumption is only on scavenger fan, this part power consumption is 0.5KWh/24h, contrast the 1.46KWh/24h power consumption of air-conditioning, saved the electric weight of 0.96KWh/24h.
Discharge the better effects if in supermarket in order to make hot-air, the utility model is simulated, and for the vertical height of different refrigerator number of units, the internal diameter of heat removal pipeline, total pipeline and the on off state of fan, design different schemes, the refrigerator number of units that these schemes relate to, the internal diameter of heat removal pipeline, the on off state of fan, vertical height and the corresponding analog result of total pipeline, as shown in table 1～7.In each table, outlet wind speed refers to the wind speed of total pipeline away from mouthful that end of calling prisoners in after letting them out for exercise, and outlet temperature refers to the temperature of total pipeline away from mouthful that end of calling prisoners in after letting them out for exercise, and operation interval temperature refers to the temperature that in cage, temperature controller records.
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Fan in table 1～table 6 is all closed condition, obtains following result by table 1～table 6:
1. in the time that the internal diameter of refrigerator number of units, heat removal pipeline is constant, if total pipeline vertical portion height is higher, operation interval temperature is lower;
2. in the time that refrigerator number of units, total pipeline vertical portion height are constant, the internal diameter of heat removal pipeline is larger, and operation interval temperature is lower;
3. in the time that internal diameter, the total pipeline vertical portion height of heat removal pipeline is constant, refrigerator number of units more between multi-work space temperature higher, but that temperature differs is very little.
Contrast table 5 and table 7, in the case of the internal diameter of refrigerator number of units, heat removal pipeline, total pipeline vertical portion height are all constant, after fan is opened, operation interval temperature significantly reduces.
Be that 4, the internal diameter of heat removal pipeline are while being 2 cun, the total pipeline vertical portion height model that is 5m in simulation refrigerator number of units, increase three kinds of different states (do not use the utility model, use the utility model but do not open fan, use the utility model and open fan), the repeatedly temperature in surveying work region averaging, data are as follows:
While using the utility model, the temperature of working region is: 52.3 ℃;
When using the utility model but not opening fan, the temperature of working region is: 51.7 ℃;
When using the utility model and opening fan, the temperature of working region is: 46.8 ℃.
Draw by three data above: also have certain effect even if the utility model does not open fan, and open after fan, effect is remarkable.
Claims (10)
1. a supermarket refrigerator condensation heat centralized processing system, comprises some refrigerators and heat radiation gathering system, and each refrigerator comprises compressor and condenser, it is characterized in that, described heat radiation gathering system comprises:
Some heat removal pipelines, every corresponding condenser of heat removal pipeline;
Total pipeline, has at least one section upwards to extend, for collecting the hot-air of all heat removal pipelines.
2. supermarket according to claim 1 refrigerator condensation heat centralized processing system, is characterized in that, described heat removal pipeline is provided with the funnel shaped mouth of calling prisoners in after letting them out for exercise near one end of condenser.
3. supermarket according to claim 1 and 2 refrigerator condensation heat centralized processing system, is characterized in that, described heat radiation gathering system also comprises some heat shields, is all mounted with a condenser, a compressor in each heat shield.
4. supermarket according to claim 3 refrigerator condensation heat centralized processing system, is characterized in that, described heat radiation gathering system also comprises:
Some fans, are arranged in heat shield, between condenser and heat removal pipeline, for the hot-air of condenser periphery is transferred to corresponding heat removal pipeline;
Some temperature controllers, are used for monitoring temperature control the opening and closing of fan.
5. supermarket according to claim 3 refrigerator condensation heat centralized processing system, is characterized in that, described heat shield is provided with air and enters hole, is also provided with the exhaust vent fixedly docking with the mouth of calling prisoners in after letting them out for exercise.
6. supermarket according to claim 5 refrigerator condensation heat centralized processing system, is characterized in that, described air enters hole and is arranged on heat shield internal gas pressure lowest part, and described exhaust vent is arranged on heat shield internal gas pressure highest point.
7. supermarket according to claim 1 refrigerator condensation heat centralized processing system, is characterized in that, also comprise loose heat utilization system, described loose heat utilization system comprises:
The first control valve, is installed on total pipeline, and the unlatching that is used for controlling total pipeline is with closed;
Some heat radiations utilize pipeline, are connected to total pipeline, are used for being communicated with hot-air;
Hot energy consumption equipment, utilizes pipeline to be connected with heat radiation, utilizes the hot-air work in hot channel;
Some the second control valves, each the second control valve correspondence is arranged on a heat radiation and utilizes on pipeline, is used for controlling heat radiation and utilizes the unlatching of pipeline with closed.
8. supermarket according to claim 1 refrigerator condensation heat centralized processing system, is characterized in that, described total pipeline has at least one section vertically to arrange, vertical height is 4800mm～6000mm.
9. supermarket according to claim 7 refrigerator condensation heat centralized processing system, is characterized in that, the length of every heat removal pipeline is 150mm～250mm, the parallel distribution of each heat removal pipeline, and distance between adjacent two heat removal pipelines is 1200mm～1800mm.
10. supermarket according to claim 1 refrigerator condensation heat centralized processing system, is characterized in that, the outer surface of described heat removal pipeline and total pipeline is all coated with thermal insulation layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684886.7U CN203672034U (en) | 2013-10-31 | 2013-10-31 | Centralized processing system for condenser heat of supermarket refrigerators |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320684886.7U CN203672034U (en) | 2013-10-31 | 2013-10-31 | Centralized processing system for condenser heat of supermarket refrigerators |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557670A (en) * | 2013-10-31 | 2014-02-05 | 浙江大学 | Condensation heat centralized treating system for supermarket refrigerators |
| CN108107938A (en) * | 2017-12-21 | 2018-06-01 | 安徽华宇机械制造有限公司 | A kind of temperature control equipment and its detecting and controlling system for silo |
-
2013
- 2013-10-31 CN CN201320684886.7U patent/CN203672034U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557670A (en) * | 2013-10-31 | 2014-02-05 | 浙江大学 | Condensation heat centralized treating system for supermarket refrigerators |
| CN108107938A (en) * | 2017-12-21 | 2018-06-01 | 安徽华宇机械制造有限公司 | A kind of temperature control equipment and its detecting and controlling system for silo |
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