CN205316778U - Cold storage refrigeration system - Google Patents

Cold storage refrigeration system Download PDF

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Publication number
CN205316778U
CN205316778U CN201521140986.9U CN201521140986U CN205316778U CN 205316778 U CN205316778 U CN 205316778U CN 201521140986 U CN201521140986 U CN 201521140986U CN 205316778 U CN205316778 U CN 205316778U
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CN
China
Prior art keywords
control valve
heat collector
connecting line
cold storage
evaporation equipment
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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
Application number
CN201521140986.9U
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Chinese (zh)
Inventor
陈红
梁永伟
马勇
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Beijing Crit Innovation Technology Co Ltd
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Beijing Crit Innovation Technology Co Ltd
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Priority to CN201521140986.9U priority Critical patent/CN205316778U/en
Application granted granted Critical
Publication of CN205316778U publication Critical patent/CN205316778U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The embodiment of the utility model discloses cold storage refrigeration system. This cold storage refrigeration system includes: refrigerating unit, refrigerating unit includes the evaporimeter, heat transfer refrigeration cycle, heat transfer refrigeration cycle include cooling tower, cooling pump, first heat exchanger, heat collector and a plurality of freezer evaporation equipment, and first heat exchanger corresponds the setting with the evaporimeter to carry out the heat transfer with the evaporimeter, the secondary refrigerant is through heat collector flow to cooling tower after the evaporation of freezer evaporation equipment, temperature -detecting device detects the well cold liquid temperature in the heat collector, the controller is connected to temperature -detecting device, first heat exchanger is provided with the 6th control valve on being connected to the pipeline of heat collector, is provided with the 7th control valve on the pipeline of freezer evaporation equipment's exit linkage to heat collector, the aperture of the 6th control valve and the 7th control valve is controlled respectively to the temperature that the controller detected according to temperature -detecting device. According to the utility model discloses a cold storage refrigeration system can effectively improve the security performance of refrigerating unit during operation.

Description

Cold storage refrigerating system
Technical field
This utility model relates to refrigeration technology field, particularly relates to a kind of cold storage refrigerating system.
Background technology
In prior art, being directly entered condenser from the high temperature refrigerant of compressor discharge and carry out condensation heat release, heat is directly discharged in air, and the heat for condenser release does not fully utilize, and causes energy dissipation, and capacity usage ratio is relatively low. Cold-producing medium is in the process of work, once there is leakage problem, it will cause serious security incident so that the security performance of refrigeration unit is relatively low.
Utility model content
This utility model embodiment provides a kind of cold storage refrigerating system, it is possible to be effectively improved security performance during refrigeration unit work.
In order to solve the problems referred to above, this utility model embodiment discloses a kind of cold storage refrigerating system, including: refrigeration unit, refrigeration unit includes vaporizer; Heat exchange kind of refrigeration cycle, heat exchange kind of refrigeration cycle includes cooling tower, cooling pump, First Heat Exchanger, heat collector and multiple freezer evaporation equipment, and First Heat Exchanger and vaporizer are correspondingly arranged, and carry out heat exchange with vaporizer, and heat exchange kind of refrigeration cycle is built-in with refrigerating medium; Refrigerating medium after freezer evaporation equipment evaporation through collector flow to cooling tower; Temperature-detecting device, cold liquid temp in detection heat collector; Controller, is connected to temperature-detecting device; First Heat Exchanger is connected on the pipeline of heat collector to be provided with the 6th control valve, and the outlet of freezer evaporation equipment is connected on the pipeline of heat collector to be provided with the 7th control valve; Controller controls the 6th control valve and the 7th respectively according to the temperature that temperature-detecting device detects and controls the aperture of valve.
Further, the outlet of First Heat Exchanger is provided with the first water collecting and diversifying device, first water collecting and diversifying device is connected one to one by the import of multiple first connecting lines Yu multiple freezer evaporation equipments, and each first connecting line between the first water collecting and diversifying device and freezer evaporation equipment is provided with the first control valve.
Further, it is provided with the second water collecting and diversifying device between heat collector and multiple freezer evaporation equipment, second water collecting and diversifying device is connected one to one by the import of multiple 4th connecting lines Yu multiple freezer evaporation equipments, and each 4th connecting line between the second water collecting and diversifying device and freezer evaporation equipment is provided with the 5th control valve.
Further, the second connecting line is provided with the second control valve, the second connecting line is provided with the first hydraulic pump, the first hydraulic pressure delivery side of pump is connected to heat collector.
Further, the first hydraulic pressure delivery side of pump is connected to the 3rd connecting line, flows to heat collector after the 3rd connecting line and the condenser heat exchange of refrigeration unit, and the 3rd connecting line is provided with the 3rd control valve.
Further, cold storage refrigerating system also includes constant pressure water tank, and constant pressure water tank is respectively connecting to the first connecting line and the 3rd connecting line, is provided with the 4th control valve between constant pressure water tank and the first connecting line.
Further, cooling tower is provided with water pipe.
Further, cooling tower is provided with blowoff line.
This utility model has the advantages that
Cold storage refrigerating system of the present utility model, refrigeration unit is in carrying out the process freezed, the cold-producing medium flowed by unit inner loop is freezed, the refrigerating medium then passed through in the vaporizer of refrigeration unit and the First Heat Exchanger of heat exchange kind of refrigeration cycle carries out heat exchange, thus the refrigerant temperature reduced in heat exchange kind of refrigeration cycle, make the refrigerating medium entering in freezer can carry out heat exchange by freezer evaporation equipment and freezer, it is achieved the refrigeration to freezer. Owing to the cold-producing medium of refrigeration unit is only at refrigeration unit internal operation, the heat exchange of freezer is to be undertaken by refrigerating medium, and refrigerating medium can make refrigeration unit be gathered in less scope, it is simple to the manufacture of whole device, installation, operational management, improve refrigerating efficiency, cold is sent at a distance simultaneously. Additionally also by reducing the filling quantity of refrigerant system cold-producing medium and reducing the probability of cold-producing medium leakage, safety and reliability during refrigeration unit work therefore can be effectively improved.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding. Accompanying drawing is only for illustrating the purpose of preferred implementation, and is not considered as restriction of the present utility model. And in whole accompanying drawing, it is denoted by the same reference numerals identical parts. In the accompanying drawings:
Fig. 1 is the structure principle chart of cold storage refrigerating system of the present utility model.
Description of reference numerals: 1, refrigeration unit; 2, freezer evaporation equipment; 3, heat collector; 4, the first connecting line; 5, first controls valve; 6, the second connecting line; 7, second controls valve; 8, the first hydraulic pump; 9, the 3rd connecting line; 10, the 3rd controls valve; 11, constant pressure water tank; 12, the 4th controls valve; 13, the 4th connecting line; 14, the 5th controls valve; 15, cooling tower; 16, cooling pump; 17, water pipe; 18, blowoff line; 19, the second hydraulic pump; 20, the 6th controls valve; 21, the 7th controls valve.
Detailed description of the invention
Below with reference to accompanying drawing and describe this utility model in detail in conjunction with the embodiments. It should be noted that when not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
Shown in Figure 1, this utility model provides a kind of cold storage refrigerating system, and including refrigeration unit 1 heat exchange kind of refrigeration cycle, refrigeration unit 1 includes vaporizer; Heat exchange kind of refrigeration cycle includes cooling tower 15, cooling pump 16, First Heat Exchanger, heat collector 3 and multiple freezer evaporation equipment 2, and First Heat Exchanger and vaporizer are correspondingly arranged, and carry out heat exchange with vaporizer, and heat exchange kind of refrigeration cycle is built-in with refrigerating medium;Refrigerating medium flows to cooling tower 15 through heat collector 3 after freezer evaporation equipment 2 evaporation; Temperature-detecting device, cold liquid temp in detection recuperation of heat heat collector 3; Controller, is connected to temperature-detecting device; First Heat Exchanger is connected on the pipeline of heat collector 3 to be provided with the 6th control valve 20, and the outlet of freezer evaporation equipment 2 is connected on the pipeline of recuperation of heat heat collector 3 to be provided with the 7th control valve 21; Controller controls the aperture of the 6th control valve 20 and the 7th control valve 21 respectively according to the temperature that temperature-detecting device detects.
Cold storage refrigerating system of the present utility model, refrigeration unit is in carrying out the process freezed, the cold-producing medium flowed by unit inner loop is freezed, the refrigerating medium then passed through in the vaporizer of refrigeration unit and the First Heat Exchanger of heat exchange kind of refrigeration cycle carries out heat exchange, thus the refrigerant temperature reduced in heat exchange kind of refrigeration cycle, make the refrigerating medium entering in freezer can carry out heat exchange by freezer evaporation equipment and freezer, it is achieved the refrigeration to freezer. Owing to the cold-producing medium of refrigeration unit is only at refrigeration unit internal operation, the heat exchange of freezer is to be undertaken by refrigerating medium, and refrigerating medium can make refrigeration unit be gathered in less scope, it is simple to the manufacture of whole device, installation, operational management, improve refrigerating efficiency, cold is sent at a distance simultaneously. Additionally also by reducing the filling quantity of refrigerant system cold-producing medium and reducing the probability of cold-producing medium leakage, safety and reliability during refrigeration unit work therefore can be effectively improved.
Controller can detect cold liquid temp in heat collector 3 by temperature-detecting device, then according to cold liquid temp in detecting, the 6th control valve 20 and the 7th aperture controlling valve 21 are adjusted, thus cold liquid temp in heat collector 3 is adjusted so that in heat collector 3, cold liquid temp can provide maximum defrosting Energy Efficiency Ratio. Controller can as needed in the aperture strengthening the 7th control valve 21 while reducing the 6th aperture controlling valve 20, or strengthen, while strengthening the aperture of the 6th control valve 20, the aperture reducing control valve 21, thus cold liquid temp in recuperation of heat heat collector 3 is controlled in preset range, the defrosting efficiency of cold liquid in raising.
The outlet of First Heat Exchanger is provided with the first water collecting and diversifying device, first water collecting and diversifying device is connected one to one by the import of multiple first connecting lines 4 with multiple freezer evaporation equipments 2, and each first connecting line 4 between the first water collecting and diversifying device and freezer evaporation equipment 2 is provided with the first control valve 5.
It is provided with the second water collecting and diversifying device between heat collector 3 and multiple freezer evaporation equipment 2, second water collecting and diversifying device is connected one to one by the import of multiple 4th connecting lines 13 with multiple freezer evaporation equipments 2, and each 4th connecting line 13 between the second water collecting and diversifying device and freezer evaporation equipment 2 is provided with the 5th control valve 14.
Heat collector 3 can play the effect of storage heat transferring medium herein, when without freezer evaporation equipment 2 is carried out heat exchange defrost, can be stored in heat collector 3 by changing refrigerating medium, and remain in the temperature of refrigerating medium in heat collector 3, when freezer evaporation equipment 2 is carried out heat exchange defrost by needs, the 5th control valve 14 can also be opened, make refrigerating medium directly flow to freezer evaporation equipment 2 through heat collector 3 place and carry out defrost.
In addition, heat collector 3 is connected with cooling tower 15, so that refrigerating medium forms circulation, when refrigerating medium is when heat collector 3 place temperature deficiency, it is possible to make the refrigerating medium in heat collector 3 flow to cooling tower 15, after the cooling of cooling tower 15, heat exchange is carried out with refrigeration unit 1, making refrigerating medium can be drawn into enough heats at freezer evaporation equipment 2 place, thus making full use of the heat of freezer evaporation equipment 2 release, improving energy utilization rate.
When refrigeration unit 1 works, if freezer evaporation equipment 2 all works, without carrying out defrost, then the 4th connecting line 13 between the import of heat collector 3 and multiple freezer evaporation equipment 2 is disconnected by the 5th control valve 14, the refrigerating medium avoiding the temperature inside heat collector 3 higher enters in freezer evaporation equipment 2, and the refrigeration of freezer evaporation equipment 2 is adversely affected. during the freezer evaporation equipment 2 of defrost if necessary, then first on the first connecting line 4 between the first minute counter and this freezer evaporation equipment 2 is controlled valve 5 to disconnect, refrigerating medium after refrigeration unit 1 heat exchange is lowered the temperature no longer is entered in this freezer evaporation equipment 2 be evaporated, now can open the 5th on the 4th connecting line 13 being connected with this freezer evaporation equipment 2 and control valve 14, the refrigerating medium that temperature in heat collector 3 is higher can be entered in this freezer evaporation equipment 2 and carry out defrost, when defrost completes, just can continue to recover original refrigerating state. by this kind of mode, it is not necessary to shut down, it becomes possible to easily freezer evaporation equipment 2 being carried out heat exchange defrosting, work efficiency is higher, and taking full advantage of the heat reclaimed in heat collector 3, energy utilization efficiency is higher.
The outlet of freezer evaporation equipment 2 is connected to heat collector 3 by the second connecting line 6, and the second connecting line 6 is provided with the second control valve 7, and the second connecting line 6 is provided with the first hydraulic pump 8, and the outlet of the first hydraulic pump 8 is connected to heat collector 3. First hydraulic pump 8 can for refrigerating medium flowing provide power so that refrigerating medium successfully can flow to freezer evaporation equipment 2 through refrigeration unit 1 and carry out heat exchange, then flows out from freezer evaporation equipment 2, and enter eventually into be collected in heat collector 3 process.
Cold storage refrigerating system also includes the second hydraulic pump 19, and the second hydraulic pump 19 is in parallel with the first hydraulic pump 8, and the two ends of the second hydraulic pump 19 are provided with control valve. Second hydraulic pump 19 is in parallel with the first hydraulic pump 8, cold liquid in freezer evaporation equipment 2 can be flowed through and flow to different positions respectively according to the difference of work, such as, in making under being in normal sweat cooling state, cold liquid flows through refrigeration unit 1 after the second hydraulic pump 19 and carries out heat exchange cooling, then proceedes to flow to freezer and is evaporated cooling. When being in defrosting defrosting state, it is possible to return heat collector 3 through the first hydraulic pump 8 after making cold liquid in heat collector 3 that freezer to be lowered the temperature and carry out heat absorption and heat up, it is possible to increase in the defrosting defrosting efficiency of cold liquid.
The outlet of the first hydraulic pump 8 is connected to the 3rd connecting line 9, flows to heat collector 3 after the 3rd connecting line 9 and the condenser heat exchange of refrigeration unit 1, and the 3rd connecting line 9 is provided with the 3rd control valve 10.
The refrigerating medium now flowed out through the first hydraulic pump 8 does not directly flow back to heat collector 3, but first pass around the condenser of refrigeration unit 1, the used heat that the condenser of absorption refrigeration unit 1 distributes is heated, improve the temperature of refrigerating medium, then heat collector 3 just it is delivered to, be conducive to improving the refrigerating medium bulk temperature in heat collector 3, more sufficiently and quickly freezer evaporation equipment 2 is carried out defrosting defrost process, improve work efficiency.
Cold storage refrigerating system also includes constant pressure water tank 11, and constant pressure water tank 11 is respectively connecting to the first connecting line 4 and the 3rd connecting line 9, is provided with the 4th control valve 12 between constant pressure water tank 11 and the first connecting line 4. Constant pressure water tank 11 can provide stable hydraulic pressure for cold storage refrigerating system, and supplements sufficient heat-exchanging water for cold storage refrigerating system in time, it is ensured that the reliable and stable operation of cold storage refrigerating system.
Cooling tower 15 is provided with water pipe 17.
Cooling tower 15 is provided with blowoff line 18.
Cooling pump 16 it is provided with, it is possible to flowing for the refrigerating medium in cooling tower 15 provides power so that the refrigerating medium in cooling tower 15 can flow through refrigeration unit 1 smoothly, carries out heat exchange with the vaporizer in refrigeration unit 1 between cooling tower 15 and refrigeration unit 1.
This refrigeration unit is such as low temperature Screw chiller.
Cooling tower 15 is provided with water pipe 17, it is possible to cooling tower 15 is carried out moisturizing.
Cooling tower 15 is provided with blowoff line 18, it is possible to discharge the foreign material at cooling tower 15 place in time.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit; Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.

Claims (8)

1. a cold storage refrigerating system, it is characterised in that including:
Refrigeration unit (1), described refrigeration unit (1) includes vaporizer;
Heat exchange kind of refrigeration cycle, described heat exchange kind of refrigeration cycle includes cooling tower (15), cooling pump (16), First Heat Exchanger, heat collector (3) and multiple freezer evaporation equipment (2), described First Heat Exchanger and described vaporizer are correspondingly arranged, and carrying out heat exchange with described vaporizer, described heat exchange kind of refrigeration cycle is built-in with refrigerating medium;
Described refrigerating medium flows to described cooling tower (15) through heat collector (3) after the evaporation of described freezer evaporation equipment (2);
Temperature-detecting device, detects cold liquid temp in described heat collector (3);
Controller, is connected to described temperature-detecting device;
Described First Heat Exchanger is connected on the pipeline of described heat collector (3) to be provided with the 6th control valve (20), and the outlet of described freezer evaporation equipment (2) is connected on the pipeline of described heat collector (3) to be provided with the 7th control valve (21);
Described controller controls the described 6th aperture controlling valve (20) and described 7th control valve (21) respectively according to the temperature that described temperature-detecting device detects.
2. cold storage refrigerating system according to claim 1, it is characterized in that, the outlet of described First Heat Exchanger is provided with the first water collecting and diversifying device, described first water collecting and diversifying device is connected one to one by the import of multiple first connecting lines (4) Yu the plurality of freezer evaporation equipment (2), and each first connecting line (4) between described first water collecting and diversifying device and described freezer evaporation equipment (2) is provided with the first control valve (5).
3. cold storage refrigerating system according to claim 2, it is characterized in that, it is provided with the second water collecting and diversifying device between described heat collector (3) and the plurality of freezer evaporation equipment (2), described second water collecting and diversifying device is connected one to one by the import of multiple 4th connecting lines (13) Yu the plurality of freezer evaporation equipment (2), and each 4th connecting line (13) between described second water collecting and diversifying device and described freezer evaporation equipment (2) is provided with the 5th control valve (14).
4. cold storage refrigerating system according to claim 3, it is characterized in that, the outlet of described freezer evaporation equipment (2) is connected to described heat collector (3) by the second connecting line (6), described second connecting line (6) is provided with the second control valve (7), being provided with the first hydraulic pump (8) on described second connecting line (6), the outlet of described first hydraulic pump (8) is connected to described heat collector (3).
5. cold storage refrigerating system according to claim 4, it is characterized in that, the outlet of described first hydraulic pump (8) is connected to the 3rd connecting line (9), flow to described heat collector (3) after described 3rd connecting line (9) and the condenser heat exchange of described refrigeration unit (1), described 3rd connecting line (9) is provided with the 3rd control valve (10).
6. cold storage refrigerating system according to claim 5, it is characterized in that, described cold storage refrigerating system also includes constant pressure water tank (11), described constant pressure water tank (11) is respectively connecting to described first connecting line (4) and described 3rd connecting line (9), is provided with the 4th control valve (12) between described constant pressure water tank (11) and described first connecting line (4).
7. cold storage refrigerating system according to claim 6, it is characterised in that be provided with water pipe (17) on described cooling tower (15).
8. cold storage refrigerating system according to claim 6, it is characterised in that be provided with blowoff line (18) on described cooling tower (15).
CN201521140986.9U 2015-12-31 2015-12-31 Cold storage refrigeration system Expired - Fee Related CN205316778U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521140986.9U CN205316778U (en) 2015-12-31 2015-12-31 Cold storage refrigeration system

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Application Number Priority Date Filing Date Title
CN201521140986.9U CN205316778U (en) 2015-12-31 2015-12-31 Cold storage refrigeration system

Publications (1)

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CN205316778U true CN205316778U (en) 2016-06-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108799837A (en) * 2018-06-04 2018-11-13 北京中冷高科制冷设备有限公司 A kind of remodeling method of liquefied ammonia refrigeration freezer
CN110160287A (en) * 2018-02-13 2019-08-23 中国中元国际工程有限公司 The cold-storage liquid distribution method of cooling supply distributor and the refrigerating method of refrigeration storage system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110160287A (en) * 2018-02-13 2019-08-23 中国中元国际工程有限公司 The cold-storage liquid distribution method of cooling supply distributor and the refrigerating method of refrigeration storage system
CN110160287B (en) * 2018-02-13 2021-02-09 中国中元国际工程有限公司 Cold accumulation liquid distribution method of cold supply distributor and refrigeration method of refrigeration house system
CN108799837A (en) * 2018-06-04 2018-11-13 北京中冷高科制冷设备有限公司 A kind of remodeling method of liquefied ammonia refrigeration freezer

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160615

Termination date: 20201231