CN206861998U - A kind of cold storage plant and its refrigeration control system - Google Patents
A kind of cold storage plant and its refrigeration control system Download PDFInfo
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- CN206861998U CN206861998U CN201720660376.4U CN201720660376U CN206861998U CN 206861998 U CN206861998 U CN 206861998U CN 201720660376 U CN201720660376 U CN 201720660376U CN 206861998 U CN206861998 U CN 206861998U
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- cold storage
- storage plant
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- compressor
- temperature
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Abstract
The utility model discloses a kind of cold storage plant and its refrigeration system, refrigeration system includes compressor power supply, first switch, temperature detecting module, master controller, second switch and pilot controller.The utility model cold storage plant refrigeration system increases pilot controller and second switch; thus; the utility model refrigeration system includes dual controller; when master controller breaks down or first switch breaks down; pilot controller and second switch can be controlled to compressor, thus, the utility model can effectively prevent the non-stop-machine situation of compressor; avoid producing irreversible damage to the chilled goods in cold storage plant, ensure the temperature meet demand in cold storage plant.
Description
Technical field
The utility model belongs to technical field of refrigeration equipment, is to be related to a kind of cold storage plant and its refrigeration control specifically
System processed.
Background technology
The refrigeration control system of existing cold storage plant normally only includes compressor current supply circuit, first switch, master controller
And temperature detecting module, first switch are serially connected on compressor current supply circuit, master controller detects according to temperature detecting module
Temperature signal controls the break-make of first switch, with the refrigerated storage temperature in guard box within the scope of given threshold, ensures refrigeration effect
Fruit.But under some abnormal conditions, for example, master controller fault or first switch failure cause compressor not shut down, system
When cold temperature anomaly is low, refrigerating effect easily is produced to the chilled goods in cold storage plant, causes irreversible influence.
When particularly blood refrigerating case has above mentioned problem, significant impact easily is caused to frozen blood.Because blood is protected
The requirement deposited is：Prevent from solidifying, ensure nutrition needed for cell metabolism, extend life-span in vitro, ensure to be defeated by patient
After can play corresponding function.Because of the particularity of blood refrigerating case storage of blood, it is particularly strict to refrigerate the requirement of the temperature inside the box, state
Mark is required at 4 ± 2 °C.If being less than this temperature range, blood can be frozen, and patient can be caused to use rear blood coagulation, be in peril of one's life.
The content of the invention
The purpose of this utility model is to provide a kind of cold storage plant refrigeration system, solves existing cold storage plant refrigeration system
Under some abnormal conditions, compressor can not be shut down, and during cryogenic temperature exception, the chilled goods in cold storage plant are produced can not
The technical problem of inverse influence.
To realize above-mentioned purpose of utility model, cold storage plant refrigeration system provided by the utility model uses following technical sides
Case is achieved：
A kind of cold storage plant refrigeration control system, including：
Compressor power supply, current supply circuit is formed for being powered for compressor, and with the compressor；
First switch, it is serially connected on the compressor current supply circuit, for controlling the break-make of the compressor current supply circuit；
Temperature detecting module, for detecting the refrigerated storage temperature signal of cold storage plant and sending to master controller；
Master controller, for controlling the break-make of the first switch according to the refrigerated storage temperature signal；
Second switch, it is serially connected on the compressor current supply circuit, for controlling the break-make of the compressor current supply circuit；
Pilot controller, for receiving the refrigerated storage temperature signal of temperature detecting module, according to the refrigerated storage temperature signal control
Make the break-make of the second switch.
A kind of cold storage plant, including above-mentioned refrigeration control system.
Compared with prior art, the advantages of the utility model and good effect is：The utility model cold storage plant refrigeration system
System increase pilot controller and second switch, thus, the utility model refrigeration system includes dual controller, occurs in master controller
When failure or first switch break down, pilot controller and second switch can be controlled to compressor, thus, this practicality
It is new effectively to prevent the non-stop-machine situation of compressor, avoid producing irreversible damage to the chilled goods in cold storage plant
It is bad, ensure the temperature meet demand in cold storage plant.
After specific embodiment of the present utility model is read in conjunction with the figure, other features and advantage of the present utility model will become
Obtain clearer.
Brief description of the drawings
Fig. 1 is the system schematic of the utility model specific embodiment.
Embodiment
The technical solution of the utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the present embodiment proposes a kind of cold storage plant refrigeration control system, for the temperature in cold storage plant
Degree is controlled, and ensures the temperature in cold storage plant in rational scope.
The refrigeration system of the present embodiment includes：Compressor power supply, first switch, temperature detecting module, master controller,
Second switch and pilot controller.Cold storage plant can normal work when, detected by master controller according to temperature detecting module
Temperature signal control first switch on off operating mode, to ensure the refrigerated storage temperature of cold storage plant in the range of demand.At certain
Under a little abnormal conditions, for example, master controller fault or first switch failure cause compressor not shut down, cryogenic temperature is abnormal
When, the temperature signal detected by pilot controller according to temperature detecting module controls the on off operating mode of second switch, cold to ensure
The refrigerated storage temperature of device is hidden in the range of demand.
The various pieces of cold storage plant refrigeration control system are specifically described below：
Compressor power supply, current supply circuit is formed for being powered for compressor, and with compressor.The compression of the present embodiment
Machine power supply is AC power, and compressor is serially connected between the L poles of AC power and N poles, forms compressor current supply circuit.
First switch, it is serially connected on compressor current supply circuit, for controlling the break-make of compressor current supply circuit.The present embodiment
First switch be compressor relay I, certainly, first switch is not limited to relay or other can be controlled
Switch form.
Temperature detecting module；For detecting the refrigerated storage temperature signal of cold storage plant and sending to master controller.The present embodiment
Temperature detecting module be temperature sensor, temperature sensor is located in the refrigerating space of cold storage plant, empty for detecting refrigeration
Between temperature.
Master controller, for receiving the refrigerated storage temperature signal of temperature detecting module, first is controlled according to refrigerated storage temperature signal
Switch on-off.Master controller is also associated with alarm unit, when there are abnormal conditions, main controller controls alarm unit report
It is alert.
Second switch, it is serially connected on compressor current supply circuit, for controlling the break-make of compressor current supply circuit.The present embodiment
Second switch is compressor relay II, certainly, second switch be not limited to relay or other can be controlled open
Pass form.Wherein, second switch is normally closed switch.
Pilot controller, for receiving the refrigerated storage temperature signal of temperature detecting module, institute is controlled according to refrigerated storage temperature signal
State the break-make of second switch.
Under normal circumstances, the temperature signal that master controller is detected by temperature detecting module controls the break-make of first switch,
So as to control the start and stop of compressor.Specifically, compressor relay II is normally off, when the temperature of temperature detecting module detection
When signal exceeds high given threshold, controller control compressor relay I closes, compressor starts refrigeration, when temperature detection mould
When the temperature signal of block detection is less than high given threshold, controller control compressor relay I disconnects, and compressor stops refrigeration.
The temperature in the start and stop guarantee cold storage plant of compressor is constantly controlled by master controller.
Under abnormal conditions：Master controller fault or the failure of compressor relay I（That is contact adhesion）The problems such as when, compressor
Appearance is not shut down, and cryogenic temperature is abnormal, when the temperature signal of temperature detecting module detection is less than low given threshold, master controller control
Alarm unit processed sends alarm signal, while pilot controller control compressor relay II disconnects, and compressor stops refrigeration, when
When the temperature signal of temperature detecting module detection is higher than high given threshold, pilot controller control compressor relay II closes,
Compressor start freezes, when the temperature signal of temperature detecting module detection is less than high given threshold, pilot controller control pressure
Contracting machine relay II disconnects.The temperature in the start and stop guarantee cold storage plant of compressor is constantly controlled by pilot controller.
In the present embodiment, temperature detecting module includes the first temperature detecting module and second temperature detection module, the first temperature
Degree detection module is used to the refrigerated storage temperature signal for detecting cold storage plant and sent to master controller, second temperature detection module be used for
Detect the refrigerated storage temperature signal of cold storage plant and send to pilot controller.
Certainly, temperature detecting module can also only include the first temperature detecting module, and the first temperature detecting module is used to examine
Survey the refrigerated storage temperature signal of cold storage plant and send to master controller and pilot controller.
Based on the design of above-mentioned cold storage plant refrigeration control system, the present embodiment also proposed a kind of cold storage plant, including
Above-mentioned refrigeration control system.
Wherein, cold storage plant is blood refrigerating case, beverage cabinet, wine cabinet, dairy products cabinet etc..
Above example is only illustrating the technical solution of the utility model, rather than is limited；Although with reference to before
Embodiment is stated the utility model is described in detail, for the person of ordinary skill of the art, still can be right
Technical scheme described in previous embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these
Modifications or substitutions, do not make appropriate technical solution essence depart from the utility model technical scheme claimed spirit and
Scope.
Claims (7)
1. a kind of cold storage plant refrigeration control system, including：
Compressor power supply, current supply circuit is formed for being powered for compressor, and with the compressor；
First switch, it is serially connected on the compressor current supply circuit, for controlling the break-make of the compressor current supply circuit；
Temperature detecting module, for detecting the refrigerated storage temperature signal of cold storage plant and sending to master controller；
Master controller, for controlling the break-make of the first switch according to the refrigerated storage temperature signal；It is characterized in that, described cold
Hiding device includes：
Second switch, it is serially connected on the compressor current supply circuit, for controlling the break-make of the compressor current supply circuit；
Pilot controller, for receiving the refrigerated storage temperature signal of temperature detecting module, institute is controlled according to the refrigerated storage temperature signal
State the break-make of second switch.
2. cold storage plant refrigeration control system according to claim 1, it is characterised in that the temperature detecting module includes
First temperature detecting module and second temperature detection module, first temperature detecting module are used for the refrigeration for detecting cold storage plant
Temperature signal is simultaneously sent to master controller, and the second temperature detection module is for detecting the refrigerated storage temperature signal of cold storage plant simultaneously
Send to pilot controller.
3. cold storage plant refrigeration control system according to claim 1, it is characterised in that the temperature detecting module includes
First temperature detecting module, first temperature detecting module are used for the refrigerated storage temperature signal for detecting cold storage plant and sent to master
Controller and the pilot controller.
4. cold storage plant refrigeration control system according to claim 1, it is characterised in that the second switch is opened to be normally closed
Close.
5. according to the cold storage plant refrigeration control system described in claim 1-4 any one, it is characterised in that the main control
Device is connected with alarm unit.
6. a kind of cold storage plant, it is characterised in that the cold storage plant includes the refrigeration control described in claim 1-5 any one
System processed.
7. cold storage plant according to claim 6, it is characterised in that the cold storage plant be blood refrigerating case, beverage cabinet,
Wine cabinet, dairy products cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720660376.4U CN206861998U (en) | 2017-06-08 | 2017-06-08 | A kind of cold storage plant and its refrigeration control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720660376.4U CN206861998U (en) | 2017-06-08 | 2017-06-08 | A kind of cold storage plant and its refrigeration control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206861998U true CN206861998U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720660376.4U Active CN206861998U (en) | 2017-06-08 | 2017-06-08 | A kind of cold storage plant and its refrigeration control system |
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| CN (1) | CN206861998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442818A (en) * | 2021-07-07 | 2021-09-28 | 山东元齐新动力科技有限公司 | Start-stop control method and system for cold chain system of new energy refrigeration vehicle |
-
2017
- 2017-06-08 CN CN201720660376.4U patent/CN206861998U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442818A (en) * | 2021-07-07 | 2021-09-28 | 山东元齐新动力科技有限公司 | Start-stop control method and system for cold chain system of new energy refrigeration vehicle |
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