JP6508593B2 - Operating condition management device - Google Patents

Description

  The present invention relates to an operating state management device, and more particularly to an operating state management device that manages the operating state of a refrigeration system provided with cooling devices such as a refrigerator and a showcase.

Conventionally, in large stores such as supermarkets, for example, many frozen showcases and refrigerated showcases are installed, and a refrigeration system in which these showcases are operated by a plurality of refrigerators is often used.
In such a refrigeration system, a dedicated integrated controller centrally managing a plurality of refrigerators and showcases is provided, and each controller of each refrigerator and showcase is connected to the integrated controller by wire or wireless, and the integrated controller It is known to perform operation setting conditions and operation state data of a refrigerator and a showcase, and to control equipment.

  In such a system, for example, when an abnormality occurs in a device, the information processing apparatus, the center server, and the portable terminal can conventionally communicate with each other via a network, and when an alarm occurs, each alarm is generated in advance. A technology has been disclosed that automatically creates an e-mail using various setting data such as mail categories set / registered corresponding to each content, and notifies the center server of the occurrence of an alarm by e-mail. (See, for example, Patent Document 1).

JP 2001-307250 A

However, in the above-mentioned prior art, when an alarm occurs, that can be notified to the control center by e-mail, but when installing a refrigerator or a showcase in the store originally, The main initial settings related to cooling operation or energy saving control of each device are such that initial values set individually for each model are set as initial set values, and these initial settings are mainly made on the site It was left up to the person in charge of installing the
Therefore, in the operation in the conventional initial setting, in the refrigeration system which is more diverse in the device configuration and receives more disturbance of the showcase and the like than the refrigeration system particularly having a single configuration, the operation of the subsequent devices is performed. There is a problem that the energy saving performance of the

In general, it was necessary to conduct trial operation with the initial setting and to determine whether the system is operating properly during the limited installation attendance period. Therefore, during the period of trial operation, it may not always be possible to find out the abnormality of the initial setting, and thereafter, if the operation is continued with an inappropriate initial setting, the device should perform an efficient operation that it should have It has the problem that it can not do and there is a possibility that energy saving performance may be greatly impaired. This depends on the level of skill of the person in charge of installation, and there is a problem that the energy saving performance greatly varies depending on the level of skill.
The present invention has been made in view of the above-described points, and can determine an abnormality in initial setting at the time of test operation, and can set operation setting conditions for performing efficient operation regardless of the degree of skill It aims at providing a driving | running state management apparatus.

In order to achieve the above object, an operating condition management apparatus according to the present invention is a cooling apparatus constituting a refrigeration system and an operating condition management apparatus for managing the operating condition of a refrigerator, the cooling apparatus used during trial operation of the refrigeration system And a storage unit for storing data relating to an operation setting condition and an operation state of the refrigerator, and a control unit for controlling the refrigeration system based on the operation setting condition of the cooling device and the refrigerator stored in the storage unit. And the control unit operates the refrigeration system under the operation setting conditions stored in the storage unit during the test operation operation of the refrigeration system, and based on time measurement data during the test operation operation of the refrigeration system. It is characterized in that test operation determination processing is performed to determine whether or not the operation setting condition is correct.

Further, in the above configuration, when the control unit determines that the operation setting condition is not correct by the test operation determination process , the control unit resets the operation setting condition to a correct condition and stores the operation setting condition in the storage unit. I assume.

Further, in the above-mentioned configuration, the control unit is characterized by including notification means for notifying that the operation setting condition is not correct by the test operation determination process .

Further, in the above configuration, the clocking data for determining the operation setting condition by the test operation determination process is low pressure setting pressure data of the refrigerator.

Further, in the above configuration, the clocking data for determining the operation setting condition by the test operation determination process is an operation frequency of a compressor of the refrigerator.

Further, in the above configuration, the timing data for determining the operation setting condition by the test operation determination process is an opening degree of a solenoid valve of the refrigerator.

In the above configuration, the clocking data for determining the operation setting condition by the test operation determination process is a measured temperature with respect to the setting temperature of the cooling device.

In the above configuration, the clocking data for determining the operation setting condition by the test operation determination process is a measured humidity with respect to the setting humidity of the cooling device.

  According to the present invention, the control unit performs trial operation determination processing at the time of trial operation, determines whether or not the operation setting condition is appropriate, and resets the appropriate operation setting condition when the operation setting condition is not appropriate. Therefore, it is possible to determine an abnormality in initial setting at the time of trial operation, and to set operation setting conditions for performing efficient operation. As a result, regardless of the level of skill of the person in charge of installation, proper initial setting is possible, and energy saving performance can be improved. In addition, when the operation setting condition is not appropriate, the appropriate operation setting condition is reset, so shortening and efficiency of the trial operation time at the time of construction can be achieved.

FIG. 1 is a refrigeration cycle diagram showing an embodiment of a refrigeration system to which an operation state management device of the present invention is applied. It is a block diagram which shows the control structure of the driving | running state management apparatus of this embodiment. It is a flowchart which shows operation | movement of the driving | running state management apparatus of this embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a circuit diagram of a refrigeration cycle showing an embodiment of a refrigeration system to which an operation state management device according to the present invention is applied. In addition, as a refrigeration system to which this invention is applied, it is not limited to this, A various refrigeration system is applicable.

  As shown in FIG. 1, the refrigeration system includes, for example, a refrigerator 10 installed in facilities such as a convenience store and a supermarket, and a showcase 40 as a cooling device for displaying and cooling refrigerated and frozen goods. There is. In addition, in this embodiment, although a carbon dioxide refrigerant is used as a refrigerant, it is not limited to this, A various refrigerant can be used.

  Moreover, the refrigerator 10 is provided with the compressor 11 by which the compression operation is performed in two stages. A refrigeration heat exchanger 12 is connected to the compressor 11 via a refrigerant pipe 13, and the refrigeration heat exchanger 12 is configured of a gas cooler 14, an intercooler 15, and a blower fan 16.

The compressor 11 is provided with a first suction port 20 and a first discharge port 21 in the first stage compression mechanism, and a second suction port 22 and a second discharge port 23 in the second stage compression mechanism are provided. It is provided.
The first suction port 20 of the compressor 11 sucks the refrigerant sent from the cooling device, is compressed to an intermediate pressure by the first stage compression mechanism, and is discharged from the first discharge port 21. The first discharge port 21 of the compressor 11 is connected to the inlet side of the intercooler 15 through the refrigerant pipe 13, and the outlet side of the intercooler 15 is connected to the first side of the compressor 11 through the refrigerant pipe 13. 2 is connected to the suction port 22.

  The second discharge ports 23 of the compressor 11 are connected to the oil separator 24 through the refrigerant pipe 13, and the oil separator 24 is connected to the gas cooler 14 through the refrigerant pipe 13. The oil separator is for separating the oil in the refrigerant, and the oil separator 24 is connected to the intermediate stage of the compressor 11 via the oil pipe 25.

Then, the refrigerant discharged from the first discharge port 21 of the compressor 11 flows into the intercooler 15 through the refrigerant pipe 13 and is cooled by exchanging heat with the outside air by operating the blower fan 16 in the intercooler 15 , And is configured to be returned to the second suction port 22 of the compressor 11. Then, the compressor 11 compresses the required pressure by the second stage compression mechanism, discharges it from the second discharge port 23, and sends it to the gas cooler 14 through the oil separator 24.
The oil separator 24 separates the oil in the refrigerant, and the separated oil is configured to be returned to the compressor 11 via the oil pipe 25. An oil service valve 26 consisting of a three-way valve is provided in the middle of the oil pipe 25. Further, a check valve 27 is provided in the middle of the refrigerant pipe 13 connected to the second discharge port 23 of the compressor 11.

Further, the gas cooler 14 cools the refrigerant sent from the compressor 11 by exchanging heat with the outside air by operating the blower fan 16 and cooling the refrigerant, but since the carbon dioxide refrigerant is not condensed, high pressure is achieved in the supercritical state. It is sent as it is.
Further, an intermediate cooler 28 is connected to the gas cooler 14 via a refrigerant pipe 13, and a pressure reducing electric valve 29 for decompressing the refrigerant sent from the gas cooler 14 is provided in the middle of the refrigerant pipe 13. It is done.
An outlet service valve 30 for sending the refrigerant to the evaporator of the showcase 40 is connected to the refrigerant pipe 13 on the outlet side of the intercooler 28. On the other hand, an inlet service valve 31 for returning the refrigerant from the evaporator of the showcase 40 is connected to the refrigerant pipe 13 connected to the first suction port 20 of the compressor 11.
Further, a refrigerant return pipe 34 is connected to the intercooler 28 via a gas return electric valve 32 and a liquid return electric valve 33, and the refrigerant return pipe 34 is connected to the outlet side of the intercooler 15.

  In addition, the evaporators 41 of the plurality of showcases 40 are connected to the outlet service valve 30 via the expansion valves 42 respectively, and the refrigerant sent from the refrigerant piping 13 by the evaporator 41 and the air in the storage are heated. It is replaced | exchanged, and it is comprised so that the inside of a storeroom of each showcase 40 may be cooled. The outlet side of the evaporator 41 is connected to the inlet service valve 31.

Next, a control configuration of the present embodiment will be described.
FIG. 2 is a block diagram showing a control configuration in the present embodiment.
As shown in FIG. 2, in the present embodiment, an integrated controller 50 as an operating state management device is provided, and the integrated controller 50 is configured to control a plurality of refrigeration systems.
In addition, a refrigerator controller 51 that controls the refrigerator 10 is mounted on the refrigerator 10, and a showcase controller 52 that controls the showcase 40 is mounted on each showcase 40.

  The integrated controller 50 includes an integrated management unit 53 as a control unit that integrates various control and data management of the refrigerator 10 and the showcase 40 via the refrigerator controller 51 and the showcase controller 52. The integrated controller 50 includes a storage unit 54 that stores data regarding the operation setting conditions and the operation state of the refrigerator 10 and the showcase 40.

The integrated controller 50 includes a refrigerator communication unit 55, a showcase communication unit 56, and a power meter communication unit 57. The refrigerator communication unit 55 is connected to the refrigerator controller 51 so that data on the operation setting condition and the operation state by the refrigerator controller 51 can be constantly sent to the integrated controller 50 through the refrigerator communication unit 55. There is.
Examples of operation setting conditions and operation data by the refrigerator controller 51 include the operation frequency of the compressor 11, the output state of the fan motor, the pressure value of the refrigerant on the inlet side or the outlet side of the compressor 11, the gas cooler 14 etc. There is the temperature of the refrigerant, etc.

In addition, the showcase communication unit 56 is connected to the showcase controller 52 so that data relating to the operation setting condition and the operation state by the showcase controller 52 is always transmitted to the integrated controller 50 via the showcase communication unit 56. It has become.
Examples of operation setting conditions and data by the showcase controller 52 include the inlet temperature of the evaporator, the outlet temperature, the temperature inside the chamber, the humidity inside the chamber, the operation mode, and the output state of the fan motor.

In addition, the showcase communication unit 56 is connected to a dew-proof heater 63 for preventing condensation of the showcase 40, and the integrated controller 50 is configured to control the humidity inside the showcase 40 sent via the showcase controller 52. According to the data, or on the basis of the in-chamber humidity data, the occurrence of dew condensation in the inside of the showcase 40 is predicted, and the dew-proof heater 63 is controlled to prevent the occurrence of dew condensation.
Further, the power meter communication unit 57 is connected to the power meter 58 so that data on the used power measured by the power meter 58 is constantly sent to the integrated controller 50 via the power meter communication unit 57.

Further, the integrated controller 50 is provided with an alarm unit 59 that gives a warning when the operating condition becomes abnormal, etc. The integrated controller 50 can, for example, input or display an operation setting condition, or display an alarm by the alarm unit 59. The display device 60 is provided as notification means for performing the Furthermore, the integrated controller 50 is provided with a remote communication unit 62 for communicating with a monitoring system (not shown) installed in the monitoring center 61 by, for example, wireless packet communication means or the like.
The remote communication unit 62 is configured to perform, for example, periodic communication such as the operation state of the refrigeration system and a history of operation setting conditions, and temporary communication such as an alarm or software update, with the monitoring center 61. .

The integrated management unit 53 is configured to perform initial condition determination processing and test operation determination processing based on data sent from the refrigerator controller 51 of each refrigerator 10 and the showcase controller 52 of the showcase 40.
As initial condition determination processing, for example, refrigerant piping group configuration confirmation determination, in-chamber set temperature determination, alarm setting determination processing, pressure determination processing, defrost group determination processing, and motor-operated valve control mode determination processing are performed. The installation conditions of the refrigeration system are input and set via the display device 60. For example, the type of the device constituting the refrigeration system and the connection state by the refrigerant piping, the type of refrigerant used, and the showcase There are 40 in-chamber set temperatures, devices that constitute a defrost group, and the like.

  Further, as the trial operation determination processing, communication abnormality determination processing, motor-operated valve opening degree determination processing, deviation temperature determination processing, low pressure set pressure determination processing, operation frequency determination processing, and refrigerator operation determination processing are performed.

More specifically, the refrigerant piping group configuration confirmation determination in the setting state determination processing indicates, for example, whether there is one refrigerator 10 in one piping group, the showcase 40 for this refrigerator 10 It is judged whether or not the combination of the refrigerator 10 and the showcase 40 is appropriate or not, and whether there is the refrigerator 10, the showcase 40, etc. which are not registered in the refrigerant piping group. Do.
Moreover, in the internal storage temperature determination, for example, whether there is a large difference (for example, 5 ° C. or more) in the set temperature in the showcase 40 in the same refrigerant piping group, the refrigeration operation and the refrigeration operation are simultaneously registered It is determined whether or not it is present.

In the alarm setting determination process, for example, it is determined whether the setting for emitting an alarm deviates from a standard value, and whether the high temperature alarm temperature and the low temperature alarm temperature are set appropriately.
In the pressure determination process, for example, it is determined whether the pressure value that is ON with respect to the minimum value of the in-storage set temperature of the showcase 40, the pressure value that is OFF, and whether the constant pressure differential value is appropriate.
In the defrosting group determination process, for example, whether or not an inappropriate device is set for the defrosting group, whether the defrosting time or the defrosting cycle is appropriate, there are defrosting types and the setting of the refrigerator 10 It is determined whether or not it is present.
In the motor-operated valve control mode determination process, for example, it is determined whether or not there is a control mode of motor-operated valves included in the refrigerant pipe group.

Further, in the communication abnormality determination processing of the trial operation determination processing, for example, it is determined whether or not there is a device that can not communicate for a predetermined time or more.
In the motor-operated valve opening degree determination process, for example, the state in which the opening degree of the motor-operated valve is the maximum value during stable operation is 3 based on the time measurement data regarding the opening degree of the motorized valve sent from the refrigerator controller 51. It is determined whether or not there is a percentage or more.

In the deviation temperature determination process, for example, based on the timekeeping data on the temperature inside the showcase 40 sent from the showcase controller 52, the deviation temperature> 0, that is, the state where there is a difference between the set temperature and the current temperature continues for a constant time It is determined whether the deviation temperature is monotonously increasing or decreasing, and whether the deviation temperature is in the range of normal values.
In the humidity determination process, for example, it is determined whether or not the set humidity in the interior of the showcase 40 for performing the operation by the dew prevention heater 63 is within an appropriate range.

In the low-pressure set pressure determination process, for example, based on time measurement data on a pressure value by the compressor 11 sent from the refrigerator controller 51, whether the pressure upper limit value of the refrigerator 10 is continuously at least a predetermined value It is determined whether or not the pressure upper limit value of the refrigerator 10 is equal to or more than a predetermined value even within a predetermined time after the end of defrosting.
In the operating frequency determination process, for example, the maximum value and the minimum value of the operating frequency of the compressor 11 within a predetermined time after the end of defrosting, based on time measurement data regarding the operating frequency of the compressor 11 sent from the refrigerator controller 51 It is determined whether the difference is within a predetermined value.
The refrigerator operation determination process determines, for example, whether or not the refrigerator 10 is operating normally when the switch is in operation.

Then, in the present embodiment, when it is determined in the test operation determination process that the normal operation is not performed, the integrated management unit 53 resets the appropriate operation setting condition, and this reset is performed. The operation setting conditions are configured to be stored in the storage unit 54.
In these initial condition determination processing and test operation determination processing, the determination items are arbitrarily changed according to the type of refrigerator 10 to be determined, the type of showcase 40, the combination of refrigerator 10 and showcase 40, etc. It can be done.

Next, the operation of the present embodiment will be described.
In the present embodiment, first, by operating the compressor 11, the refrigerant sent from the showcase 40 from the first suction port 20 of the compressor 11 is sucked, and this refrigerant is generated by the first stage compression mechanism. It is compressed to an intermediate pressure and discharged from the first discharge port 21.
Further, the refrigerant discharged from the first discharge port 21 of the compressor 11 flows into the intercooler 15 through the refrigerant pipe 13 and is cooled by heat exchange with the outside air by the blower fan 16 by the intercooler 15. Is returned to the second inlet 22 of the

The refrigerant returned from the intercooler 15 is compressed to a necessary pressure by the second stage compression mechanism by the compressor 11, discharged from the second discharge port 23, and sent to the gas cooler 14 via the oil separator 24. The refrigerant sent from the compressor 11 is cooled by heat exchange with the outside air by the gas cooler 14 by the blower fan 16 and is sent to the intercooler 28 as a high pressure refrigerant.
The refrigerant cooled by the intercooler 28 is sent to the evaporator 41 of the showcase 40 via the outlet service valve 30, and this evaporator 41 exchanges heat with the air in the storage case to obtain the inside of the storage case. Cooling is performed. The refrigerant after heat exchange in the evaporator 41 is returned to the compressor 11 via the inlet service valve 31 and the refrigerant pipe 13.

  Next, the control operation in the present embodiment will be described with reference to the flowchart shown in FIG.

  First, initial condition determination processing is performed. First, the refrigerant piping group configuration confirmation determination is performed (ST1), and the integrated management unit 53 displays, for example, a showcase 40 for this refrigerator 10 whether there is one refrigerator 10 in one piping group. Whether or not one or more refrigerant pipes are connected, whether or not the combination of the refrigerator 10 and the showcase 40 is appropriate, and whether there are the refrigerator 10 and the showcase 40 which are not registered in the refrigerant pipe group Decide whether or not. And, when there is not one refrigerator 10 in one piping group, the integrated management unit 53 does not connect the refrigerator 10 with the refrigerator 10 when one or more showcases 40 are not connected to the refrigerator 10 by refrigerant piping. If the combination with the case 40 is not appropriate and there is a refrigerator 10 and a showcase 40 that are not registered in the refrigerant piping group, it is determined that the initial setting is abnormal (NG).

  Subsequently, the in-chamber set temperature determination is performed (ST2), and the integrated management unit 53 determines, for example, whether there is a large difference (for example, 5 ° C. or more) in the set temperature in the showcase 40 in the same refrigerant piping group It is determined whether or not the freezing operation and the refrigeration operation are registered at the same time. Then, when there is a large difference (for example, 5 ° C. or more) in the set temperature in the showcases 40 in the same refrigerant piping group, the integrated management unit 53 initially displays the case where the refrigeration operation and the refrigeration operation are simultaneously registered. It is determined that the setting is abnormal (NG).

  Next, an alarm setting determination process is performed (ST3). For example, the integrated management unit 53 determines whether the setting for emitting an alarm deviates from the standard value, and whether the high temperature alarm temperature and the low temperature alarm temperature are set appropriately. Decide whether or not. Then, the integrated management unit 53 determines that the initial setting abnormality (NG) occurs when the high temperature alarm temperature and the low temperature alarm temperature are not properly set if the setting for emitting an alarm deviates from the standard value.

  Next, a pressure determination process is performed (ST4), and the integrated management unit 53, for example, has a pressure value that turns on, a pressure value that turns off, and a constant pressure differential value that turn on with respect to the minimum value of the in-chamber set temperature of the showcase 40. It is judged whether it is appropriate or not. Then, the integrated management unit 53 sets the pressure value to be ON, the pressure value to be OFF, and the initial setting abnormality (NG) when the constant pressure differential value is not appropriate with respect to the minimum value of the in-chamber set temperature of the showcase 40. judge.

  Next, the defrosting group determination processing is performed (ST5), and the integrated management unit 53 determines, for example, whether or not an inappropriate device is set for the defrosting group, and whether or not the defrosting time and defrosting cycle are appropriate It is determined whether the defrosting type and the setting of the refrigerator 10 are present or not. The integrated management unit 53 determines that the defrosting mode and the refrigerator 10 are not set when the defrosting time and the defrosting cycle are not appropriate when the defrosting group and the apparatus suitable for the defrosting group are not set. , It is determined that the initial setting abnormality (NG).

  Next, motor-operated valve control mode determination processing is performed (ST6), and the integrated management unit 53 determines, for example, whether or not there is a control mode of the motor-operated valve included in the refrigerant pipe group. Then, when there is no control mode of the motor-operated valve included in the refrigerant pipe group, the integrated management unit 53 determines that the initial setting is abnormal (NG).

  When it is determined that these determination processes are abnormal (NG), since the setting itself is abnormal, the alarm unit 59 notifies an alarm and the display device 60 notifies an alarm (ST7). Thereafter, the user confirms whether or not the diagnosis is to be continued by the display device 60 (ST8). If the determination is not to be continued, the process is ended. If the determination is to be continued, the test operation determination process is performed.

  Subsequently, test operation determination processing is performed. First, communication abnormality determination processing is performed (ST9), and the integrated management unit 53 determines, for example, whether there is a device that can not communicate for a predetermined time or more. Then, when there is a device that can not communicate for a predetermined time or more, the integrated management unit 53 determines that the operation setting condition by the test operation is abnormal (NG).

  Next, the motor-operated valve opening degree determination processing is performed (ST10), and the integrated management unit 53 opens the motor-operated valve during the stable operation based on, for example, time measurement data regarding the opening degree of the motorized valve sent from the refrigerator controller 51. It is determined whether or not the state in which the degree is the maximum value exists for 30% or more of the whole. Then, based on the time measurement data on the opening degree of the motor-operated valve sent from the refrigerator controller 51, the integrated management unit 53 determines that the opening degree of the motor-operated valve becomes the maximum value during stable operation is 30% or more of the whole. If it exists, it is determined that the operation setting condition by the test operation is abnormal (NG).

  Next, the deviation temperature determination process is performed (ST11), and the integrated management unit 53 determines that the deviation temperature> 0, that is, the set temperature, based on, for example, the time data of the interior temperature of the showcase 40 sent from the showcase controller 52. Whether the state where there is a difference between the current and the current continues for a fixed time, whether the deviation temperature monotonously increases or decreases, and whether the deviation temperature changes within the normal value range, etc. judge. Then, the integrated management unit 53, based on the time measurement data on the temperature in the storage room of the showcase 40 sent from the showcase controller 52, the state in which the deviation temperature> 0, that is, the difference between the set temperature and the current temperature continues for a fixed time If the deviation temperature monotonously increases or decreases, and if the deviation temperature does not change within the range of the normal value, it is determined that the operation setting condition by the test operation is abnormal (NG).

  Next, the humidity determination processing is performed (ST12), and the integrated management unit 53 determines, for example, whether or not the set humidity in the cabinet of the showcase 40 for performing the operation by the anti-dew heater 63 is within the appropriate range. Do. Then, the integrated management unit 53 determines that the operation setting condition by the test operation is abnormal (NG) when the set humidity in the compartment of the showcase 40 is not within the appropriate range.

  Next, low pressure setting pressure determination processing is performed (ST13), and the integrated management unit 53 determines that the pressure upper limit value of the refrigerator 10 is, for example, based on time measurement data regarding the pressure value by the compressor 11 sent from the refrigerator controller 51. It is determined whether or not a state of a predetermined value or more continues for a predetermined time or more, and whether a pressure upper limit value of the refrigerator 10 is at least a predetermined value or more within a predetermined time after completion of defrosting. When the integrated management unit 53 determines that the pressure upper limit value of the refrigerator 10 is equal to or more than the predetermined value based on the time data on the pressure value of the compressor 11 sent from the refrigerator controller 51, the integrated management unit 53 continues for a predetermined time or more. When the pressure upper limit value of the refrigerator 10 is equal to or more than a predetermined value even within a predetermined time after the end of defrosting, it is determined that the operation setting condition by the test operation is abnormal (NG).

  Next, an operation frequency determination process is performed (ST14), and the integrated management unit 53 compresses within a predetermined time after the defrosting based on, for example, clocking data regarding the operation frequency of the compressor 11 sent from the refrigerator controller 51 It is determined whether or not the difference between the maximum value and the minimum value of the operating frequency of the machine 11 is within a predetermined value. Then, the integrated management unit 53 determines the maximum value and the minimum value of the operating frequency of the compressor 11 within a predetermined time after the end of the defrosting based on the time measurement data on the operating frequency of the compressor 11 sent from the refrigerator controller 51. When the difference is not within the predetermined value, it is determined that the operation setting condition by the test operation is abnormal (NG).

  Next, the refrigerator operation determination processing is performed (ST15), and the integrated management unit 53 determines, for example, whether or not the refrigerator 10 is operating normally when the switch is put in operation. Then, the integrated management unit 53 determines that the operation setting condition by the test operation is abnormal (NG) when the refrigerator 10 is not operated normally when the switch is put in the operation state.

  Then, in the present embodiment, when it is determined in the test operation determination process that the normal operation is not performed, the integrated management unit 53 resets the appropriate operation setting condition (ST16). The storage unit 54 stores the reset operation setting conditions.

As described above, according to the present embodiment, the integrated management unit 53 performs trial operation determination processing at the time of trial operation, determines whether the operation setting condition is appropriate, and when the operation setting condition is not appropriate, it is appropriate. Since the operation setting conditions are reset, it is possible to determine the abnormality of the initial setting at the time of the test operation, and it is possible to set the operation setting conditions for performing the efficient operation. As a result, regardless of the level of skill of the person in charge of installation, proper initial setting is possible, and energy saving performance can be improved.
In addition, when the operation setting condition is not appropriate, the appropriate operation setting condition is reset, so shortening and efficiency of the trial operation time at the time of construction can be achieved.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention.

DESCRIPTION OF SYMBOLS 10 refrigerator 11 compressor 12 heat exchanger for refrigeration 13 refrigerant piping 14 gas cooler 15 intercooler 16 ventilation fan 20 1st suction port 21 1st discharge port 22 2nd suction port 23 2nd discharge port 24 oil separator 25 oil pipe 26 oil Service valve 28 intercooler 30 outlet service valve 31 inlet service valve 34 refrigerant return piping 40 showcase 41 evaporator 42 expansion valve 50 integrated controller 51 refrigerator controller 52 showcase controller 53 integrated management unit 54 memory unit 55 refrigerator communication unit 56 showcase communication unit 59 alarm unit 60 display device 63 dew condensation heater

Claims (8)

In a cooling device that constitutes a refrigeration system and an operation state management device that manages the operation state of a refrigerator,
A storage unit for storing data relating to an operation setting condition and an operation state of the cooling device and the refrigerator used at a test operation operation of the refrigeration system;
And a control unit configured to control the refrigeration system based on the operation setting conditions of the cooling device and the refrigerator stored in the storage unit.
The control unit operates the refrigeration system under the operation setting conditions stored in the storage unit during the test operation operation of the refrigeration system, and the operation setting condition based on clock data during the test operation operation of the refrigeration system. The driving | running state management apparatus characterized by performing the trial operation determination processing which determines whether these are correct. The said control part resets the said driving | running setting condition to a correct condition, and makes it memorize | store it in the said memory | storage part, when it determines with the said driving | running setting condition being incorrect by the said test- operation determination processing. The driving | running state management apparatus of description. The said control part is provided with the alerting | reporting means which alert | reports that, when it determines with the said driving | running setting condition being incorrect by the said test- operation determination processing, The driving | operation of Claim 1 or Claim 2 characterized by the above-mentioned. State management device. The operation state according to any one of claims 1 to 3, wherein the clocking data for determining the operation setting condition by the test operation determination process is low pressure setting pressure data of the refrigerator. Management device. 5. The operation according to claim 1, wherein clocking data for determining the operation setting condition by the test operation determination process is an operation frequency of a compressor of the refrigerator. State management device. The timing data for determining the said driving | running setting conditions by the said test- drive determination process is the opening degree of the solenoid valve of the said refrigerator, The driving | operation as described in any one of the Claims 1-5 characterized by the above-mentioned. State management device. 7. The operation according to any one of claims 1 to 6, wherein clocking data for determining the operation setting condition by the test operation determination process is a measured temperature with respect to the setting temperature of the cooling device. State management device. The time measurement data for determining the said driving | operation setting conditions by the said test- drive determination process are the measurement humidity with respect to the setting humidity of the said cooling device, The driving | operation as described in any one of the Claims 1-7 characterized by the above-mentioned. State management device.

Images