JP6109605B2 - Beverage dispenser - Google Patents

Description

  The present invention relates to a beverage dispenser that cools and supplies a beverage such as beer.

  Patent Document 1 discloses a beverage dispenser. This beverage dispenser stirs the cooling water in the cooling water tank, the cooling water tank in which the cooling water is stored, the coiled beverage cooling pipe provided in the cooling water tank, the refrigeration apparatus for cooling the cooling water in the cooling water tank, and the cooling water in the cooling water tank. And a stirrer. This beverage dispenser refrigeration apparatus cools and liquefies refrigerant gas compressed by a compressor, and causes the liquefied refrigerant to exchange heat with cooling water when passing through an evaporation pipe disposed in a cooling water tank. Thus, the vaporized refrigerant is returned to the compressor again, and the cooling water in the cooling water tank is cooled using the circulating refrigerant. In this beverage dispenser, by operating the refrigeration device and the stirring device, the water in the cooling water tank becomes an ice layer having a predetermined thickness around the evaporation tube while being stirred by the stirring device, and passes through the beverage cooling tube. The beverage is efficiently cooled by the cooling water stirred by the stirring device and poured out from the dispensing cock.

JP2011-169568

  Before such a beverage dispenser is installed, the refrigerant in the refrigerant circulation path in the refrigeration apparatus is at substantially the same temperature as the room temperature, so the pressure in the refrigerant circulation path may be high. After installing the beverage dispenser, when the cooling water is injected into the cooling water tank and the power is turned on, the stirring device and the freezing device are operated. When the beverage dispenser is turned on, if the pressure in the refrigerant circulation path of the refrigeration apparatus is high, a large load is applied to the compressor, which may cause a start-up failure of the compressor. An object of the present invention is to make it difficult to cause a start-up failure of a compressor when a beverage dispenser is turned on.

In order to solve the above problems, the present invention includes a cooling water tank for storing cooling water to cool the beverage, a refrigeration apparatus for cooling the cooling water in the cooling water tank, and a stirring device for stirring the cooling water in the cooling water tank, The refrigeration system includes a compressor that compresses the refrigerant gas, a condenser that cools and liquefies the refrigerant gas compressed by the compressor, and a liquefied refrigerant that is disposed in the cooling water tank and is liquefied by the condenser. An evaporating pipe that is cooled by replacement and returned to the compressor again. A refrigerant temperature sensor that detects the temperature of the refrigerant is provided in the refrigerant gas outlet of the evaporating pipe, and a cooling water temperature is detected in the cooling water tank. A beverage dispenser provided with at least one of a water temperature sensor, and when the beverage dispenser is turned on, the stirring device is operated when the detected temperature of the refrigerant temperature sensor or the detected temperature of the water temperature sensor is lower than a predetermined temperature. In which is provided a beverage dispenser, characterized in that the control to actuate the refrigeration system.

  In the beverage dispenser configured as described above, when the power is turned on, if the detected temperature of the refrigerant temperature sensor or the detected temperature of the water temperature sensor is lower than the predetermined temperature, the stirrer is operated and then the refrigeration apparatus is operated. Therefore, the refrigerant in the evaporation pipe is cooled by the cooling water in the cooling water tank stirred by the stirring device and then sent to the compressor, and it is difficult for a large load to be applied to the compressor at the start of the operation of the refrigeration device. As a result, it became difficult for the compressor to start up poorly.

  In such a beverage dispenser, the stirring device is operated first when the temperature of the cooling water in the cooling water tank is high, such as when the temperature detected by the refrigerant temperature sensor or the temperature detected by the water temperature sensor is equal to or higher than a predetermined temperature. Then, the state in which the pressure of the refrigerant returning from the evaporation pipe to the compressor continues to be high continues, and a large load is applied to the compressor. Therefore, in this beverage dispenser, when the power is turned on, if the detected temperature of the refrigerant temperature sensor or the detected temperature of the water temperature sensor is equal to or higher than a predetermined temperature, the stirrer is operated after the refrigeration apparatus is operated. Controlled. By controlling in this way, the refrigeration unit only cools the cooling water around the evaporator tube before the stirring device is operated, so that the temperature of the refrigerant returning from the evaporator tube to the compressor is continuously high. Can be prevented, and a high load is not continuously applied to the compressor. In addition, the cooling water in the cooling water tank is first cooled around the evaporation pipe, and the cooled portion around the evaporation pipe is stirred by the stirring device so that the whole cooling water in the cooling water tank is gradually Since it is cooled, it becomes difficult to apply a load to the compressor.

  Further, since the refrigerant temperature sensor detects the temperature of the refrigerant in the outlet portion of the evaporation pipe, even when only the cooling water around the evaporation pipe is cooled, the detection temperature of the refrigerant temperature sensor becomes lower than the predetermined temperature. Sometimes. If the stirring device is continuously operated after this, the temperature of the cooling water after stirring becomes high again, and there is a possibility that a large load is applied to the compressor. Therefore, when the refrigeration apparatus is controlled to operate first, the stirring apparatus is controlled to operate only when the temperature detected by the refrigerant temperature sensor is lower than a predetermined temperature. When this is done, the temperature of the cooling water in the cooling water tank, which has become lower around the periphery of the evaporator tube, is stirred and uniformed by the stirrer, and stirring is continued if the temperature of the cooling water after stirring continues to be equal to or higher than the predetermined temperature. The operation of the apparatus was stopped and only the refrigeration apparatus was operated. Thereby, a cooling water comes to be efficiently cooled by stirring, without applying a big load to a compressor continuously. Further, when the refrigeration apparatus was controlled to be operated first, the stirring apparatus was controlled to be continuously operated when the temperature detected by the water temperature sensor was lower than a predetermined temperature. At this time, since the temperature of the cooling water is directly detected, a large load is not applied to the compressor even if the stirring device is continuously operated.

  In addition, another invention for solving the above problems includes a cooling water tank for storing cooling water to cool a beverage, a refrigeration apparatus for cooling the cooling water in the cooling water tank, and stirring for stirring the cooling water in the cooling water tank. And a water temperature sensor for detecting the temperature of the cooling water provided in the cooling water tank, the refrigeration apparatus compresses the refrigerant gas, and a condenser that cools and liquefies the refrigerant gas compressed by the compressor And an evaporation pipe that cools the liquefied refrigerant disposed in the cooling water tank and liquefied by the condenser by heat exchange with the cooling water and returns the refrigerant to the compressor again. Is a beverage dispenser provided with a refrigerant temperature sensor for detecting the temperature of the refrigerant, and when the beverage dispenser is turned on, the temperature detected by the refrigerant temperature sensor is equal to or higher than a predetermined temperature, and the temperature detected by the refrigerant temperature sensor Water temperature Sen When it is detected temperatures above is to provide a beverage dispenser, characterized in that the control to actuate the refrigeration system from actuates the stirrer.

  In the beverage dispenser configured as described above, when the temperature detected by the refrigerant temperature sensor is equal to or higher than the predetermined temperature and the temperature detected by the refrigerant temperature sensor is equal to or higher than the temperature detected by the water temperature sensor when the power is turned on, stirring is performed. Since the refrigeration unit is controlled to operate after the device is activated, the refrigerant in the evaporation pipe is cooled by the cooling water in the cooling water tank agitated by the agitator and then sent to the compressor, and the operation starts. Sometimes it becomes difficult to apply a large load to the compressor, and it becomes difficult to apply a large load to the compressor at the start of operation of the refrigeration system, which makes it difficult to start up the compressor.

  In the beverage dispenser configured as described above, when the detected temperature of the refrigerant temperature sensor is equal to or higher than the predetermined temperature and the detected temperature of the refrigerant temperature sensor is lower than the detected temperature of the water temperature sensor, stirring is performed after the refrigeration apparatus is operated. Preferably, the device is controlled to operate. By controlling in this way, the refrigeration unit only cools the cooling water around the evaporator tube before the stirring device is operated, so that the temperature of the refrigerant returning from the evaporator tube to the compressor is continuously high. Can be prevented, and a high load is not continuously applied to the compressor. In addition, the cooling water in the cooling water tank is first cooled around the evaporation pipe, and the cooled portion around the evaporation pipe is stirred by the stirring device so that the whole cooling water in the cooling water tank is gradually Since it is cooled, it becomes difficult to apply a load to the compressor.

  In the beverage dispenser configured as described above, when the detected temperature of the refrigerant temperature sensor is lower than a predetermined temperature and the detected temperature of the refrigerant temperature sensor is equal to or higher than the detected temperature of the water temperature sensor, the refrigeration apparatus is operated after the stirring refrigeration apparatus is operated. It is preferable to control to operate. When doing so, the refrigerant in the evaporation pipe is cooled by the cooling water in the cooling water tank stirred by the stirring device and then sent to the compressor, and it becomes difficult to apply a large load to the compressor at the start of operation, When starting the operation of the refrigeration system, it is difficult for a large load to be applied to the compressor, and it becomes difficult for the compressor to start up poorly.

  In the beverage dispenser configured as described above, when the detected temperature of the refrigerant temperature sensor is lower than a predetermined temperature and the detected temperature of the refrigerant temperature sensor is lower than the detected temperature of the water temperature sensor, the stirring device and the freezing device are operated simultaneously. It is preferable to control so that the refrigeration apparatus is operated after the stirring apparatus is operated. When doing so, since the pressure of the refrigerant returning from the evaporation pipe to the compressor is low, even if the stirring device and the refrigeration device are operated simultaneously, or the refrigeration device is operated after the stirring device is operated, A large load is not applied to the compressor.

1 is a longitudinal sectional view of one embodiment of a beverage dispenser according to the present invention. It is a block diagram which shows a control apparatus. 3 is a flowchart of a control program 1. 3 is a flowchart of a control program 2. 3 is a flowchart of a control program 3. 5 is a flowchart of a control program 4.

  Hereinafter, an embodiment of a beverage dispenser according to the present invention will be described with reference to the drawings. As shown in FIG. 1, a beverage dispenser 10 according to the present invention includes a cooling water tank 12 that stores cooling water to cool a beverage, a refrigeration apparatus 20 that cools cooling water in the cooling water tank 12, and a cooling water tank 12. A stirring device 30 for stirring the cooling water is provided.

  The beverage dispenser 10 includes a housing 11 whose upper surface is open. In the housing 11, a cooling water tank 12 is provided at the front, and a refrigeration apparatus 20 excluding the evaporation pipe 23 is provided at the rear. A lid 13 is detachably provided on the upper surface opening of the housing 11. A beverage cooling pipe 14 wound in a coil shape for cooling the beverage is erected in the cooling water tank 12 and connected to a beverage supply source such as a beer barrel (not shown) on the introduction end side of the beverage cooling pipe 14. The beverage cooling pipe 14 is connected to a dispensing cock 15 fixed to the front wall of the housing 11 on the outlet end side. A water temperature sensor 16 for detecting the temperature of the cooling water is provided in the cooling water tank 12. The water temperature sensor 16 is attached in the cooling water tank 12 at a position slightly away from an evaporation pipe 23 described later.

  The refrigeration apparatus 20 cools the cooling water in the cooling water tank 12. The refrigeration apparatus 20 includes a compressor 21 that compresses refrigerant gas, a condenser 22 that cools and liquefies the refrigerant gas compressed by the compressor 21, and a capillary tube that expands the liquefied refrigerant sent from the condenser 22 (illustration). And an evaporating pipe 23 which is disposed in the cooling water tank 12 and cooled by heat exchange of the liquefied refrigerant liquefied with the cooling water and returned to the compressor 21 again. The condenser 22 includes a heat exchanger 22a through which the refrigerant passes and a cooling fan 22b that cools the refrigerant that passes through the heat exchanger 22a. The evaporating tube 23 is disposed in a coil shape on the inner peripheral surface of the cooling water tank 12 outside the coiled beverage cooling tube 14. A refrigerant temperature sensor 24 that detects the temperature of the refrigerant is provided at the refrigerant outlet portion of the evaporator tube 23 with respect to the compressor 21. The refrigerant temperature sensor 24 is provided outside the cooling water tank 12. An ice thickness sensor 25 is provided around the evaporation pipe 23 in the cooling water tank 12. The ice thickness sensor 25 detects whether or not an ice layer having a predetermined thickness is formed around the evaporation tube 23 based on energization and non-energization of two electrodes separated from each other. That is, when the ice layer is formed around the ice thickness sensor 25, the two electrodes are in a non-energized state. When the ice layer is not formed around the ice thickness sensor 25, the two electrodes are in an energized state by cooling water. Become.

  The cooling water tank 12 is provided with a stirring device 30. The stirring device 30 stirs the temperature of the cooling water in the cooling water tank 12 to be uniform, and efficiently cools the beverage passing through the beverage cooling pipe 14 with the cooling water flowing by stirring. Further, the stirring device 30 has a function of making the thickness of the ice layer formed around the evaporation pipe 23 uniform by flowing cooling water. The stirring device 30 penetrates through the support plate 31 from the stirring plate 32, the support plate 31 that is installed and fixed on the upper edges of the left and right side walls of the cooling water tank 12, the stirring motor 32 that is fixed to the upper surface of the support plate 31. The shaft 33 extends into the cooling water tank 12 and is rotated by the stirring motor 32, and the stirring blade 34 fixed to the tip of the shaft 33.

  The beverage dispenser 10 includes a control device 40. As shown in FIG. 2, the control device 40 includes a water temperature sensor 16, a refrigerating device 20 (particularly, the compressor 21 and the cooling fan 22b), a refrigerant temperature sensor 24, The ice thickness sensor 25, the stirring device 30 (particularly the stirring motor 32), and the power switch 41 are connected. The control device 40 includes a microcomputer (not shown), and the microcomputer includes a CPU, a RAM, a ROM, and a timer (all not shown) connected via a bus. The control device 40 has the following control program in the ROM for controlling the operation of the refrigeration device 20 and the stirring device 30 when the power is turned on by the power switch 41. In the following description, the operation of the refrigeration apparatus 20 is to operate the compressor 21 and the cooling fan 22b, and the operation of the stirring apparatus 30 is to operate the stirring motor 32.

  Next, the installation of the beverage dispenser 10 described above and the operation after the installation will be described. The beverage dispenser 10 is installed at an appropriate installation location, the lid 13 is opened, and a predetermined amount of cooling water (for example, tap water) is put into the cooling water tank 12. At this time, the temperature of the refrigerant in the refrigerant circulation path of the refrigeration apparatus 20 is substantially the same as the room temperature. Depending on the timing and environment in which the beverage dispenser 10 is installed, the temperature of the refrigerant in the refrigerant circulation path of the refrigeration apparatus 20 may be high, which may increase the pressure of the refrigerant. If the refrigeration apparatus 20 is operated in this state, a large load is applied to the compressor 21, which may cause a start-up failure of the compressor 21. Therefore, the beverage dispenser 10 executes the following control program when the power is turned on by the power switch 41.

(Control program 1)
As shown in FIG. 3, when the power is turned on by the power switch 41, the control device 40 first operates the stirring device 30 in step 101. Next, in step 102, the control device 40 sets the refrigeration apparatus 20 after the elapse of a predetermined time (for example, 2 or 3 minutes, the predetermined time is not limited to 2 or 3 minutes, and the predetermined time thereafter). Operate. The refrigerant in the evaporation pipe 23 is cooled by the cooling water in the cooling water tank 12 stirred by the stirring device 30, and the pressure of the refrigerant in the evaporation pipe 23 decreases. Thereby, even if the refrigeration apparatus 20 is operated, the pressure of the refrigerant flowing into the compressor 21 from the evaporation pipe 23 does not increase, and it is difficult for a large load to be applied to the compressor 21, and it is difficult for the compressor 21 to start poorly. It was.

  After executing the processing of step 102, the control device 40 controls the operation of the refrigeration device 20 based on the detection of the ice thickness sensor 25 so that the ice layer formed around the evaporator tube 23 has a predetermined thickness. Control (not shown because it is known).

(Control program 2)
This control program controls the operation of the refrigeration apparatus 20 and the stirring apparatus 30 based on the detected temperature (Tw) of the water temperature sensor 16 when the power is turned on by the power switch 41. As shown in FIG. 4, when the power is turned on by the power switch 41, the control device 40 determines in step 201 whether or not the detected temperature (Tw) of the water temperature sensor 16 is lower than 30 ° C. as a predetermined temperature. . If the detected temperature (Tw) of the water temperature sensor 16 is lower than 30 ° C., it is a temperature at which the refrigerant in the evaporation pipe 23 can be sufficiently cooled by the cooling water. At this time, the control device 40 determines “YES” in step 201 and proceeds to step 202 to operate the stirring device 30 first. The control device 40 operates the refrigeration device 20 after a predetermined time has elapsed in step 203. The refrigerant in the evaporation pipe 23 is cooled by the cooling water in the cooling water tank 12 stirred by the stirring device 30, and as a result, the pressure of the refrigerant in the evaporation pipe 23 decreases. As a result, even when the refrigeration apparatus 20 is operated, the pressure of the refrigerant flowing into the compressor 21 from the evaporation pipe 23 does not increase, and a large load is not applied to the compressor 21. It became difficult to occur.

  On the other hand, when the cooling water in the cooling water tank 12 is 30 ° C. or higher, the refrigerant in the evaporation pipe 23 cannot be sufficiently cooled by the cooling water even if the stirring device 30 is operated first. Therefore, if the detected temperature (Tw) of the water temperature sensor 16 is 30 ° C. or higher, the control device 40 determines “NO” in step 201 and proceeds to step 204 to activate the refrigeration device 20 first. The cooling water in the cooling water tank 12 is gradually cooled from the periphery of the evaporation pipe 23. At this time, since the cooling water in the cooling water tank 12 is not stirred by the stirring device 30, the temperature of the refrigerant in the evaporation pipe 23 is less likely to be higher than the cooling water in the portion that is not cooled. The cooling water in the cooling water tank 12 is gradually cooled by the operation of the refrigeration apparatus 20.

  Next, the control device 40 determines whether or not the detected temperature (Tw) of the water temperature sensor 16 has become lower than 30 ° C. in step 205. If the detected temperature (Tw) of the water temperature sensor 16 is not lower than 30 ° C., the control device 40 returns to step 204. The control device 40 repeatedly executes the processing of steps 204 and 205. If the detected temperature (Tw) of the water temperature sensor 16 is lower than 30 ° C., it is determined as “YES” in step 205 and proceeds to step 206. 30 is activated.

  By controlling in this way, before the stirring device 30 is operated, the refrigeration device 20 only cools the cooling water around the evaporation pipe 23, so the temperature of the refrigerant returning from the evaporation pipe 23 to the compressor 21 continues. Therefore, the compressor 21 can be prevented from being continuously subjected to a high load. Further, the cooling water in the cooling water tank 12 is first cooled around the evaporation pipe 23, and the cooled portion around the evaporation pipe 23 is stirred by the agitator 30 so that the cooling water in the cooling water tank 12 is cooled. Since the whole was gradually cooled, it was difficult to apply a load to the compressor 21.

  After executing the processing of step 203 or step 206, the control device 40 controls the operation of the refrigeration device 20 based on the detection of the ice thickness sensor 25, and the ice layer formed around the evaporator tube 23 has a predetermined thickness. (The illustration is omitted because it is known).

(Control program 3)
This control program controls the operation of the refrigeration apparatus 20 and the stirring apparatus 30 based on the detected temperature (Tr) of the refrigerant temperature sensor 24 when the power is turned on by the power switch 41. The refrigerant temperature sensor 24 detects the temperature of the cooling water in the cooling water tank 12 indirectly by detecting the temperature of the refrigerant in the evaporation pipe 23 disposed in the cooling water tank 12. As shown in FIG. 5, when the power is turned on by the power switch 41, the control device 40 determines in step 301 whether or not the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than 30 ° C. as a predetermined temperature. To do. If the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than 30 ° C. as the predetermined temperature, the refrigerant in the evaporation pipe 23 can be sufficiently cooled by the cooling water. And proceeds to step 302, where the stirring device 30 is operated first. Next, the control device 40 operates the refrigeration device 20 after a predetermined time has elapsed in step 303. The refrigerant in the evaporation pipe 23 is cooled by the cooling water in the cooling water tank 12 stirred by the stirring device 30, and as a result, the pressure of the refrigerant in the evaporation pipe 23 decreases. As a result, even when the refrigeration apparatus 20 is operated, the pressure of the refrigerant flowing into the compressor 21 from the evaporation pipe 23 does not increase, and a large load is not applied to the compressor 21. It became difficult to occur.

  On the other hand, if the detected temperature (Tr) of the refrigerant temperature sensor 24 is 30 ° C. or higher when the power is turned on by the power switch 41, the refrigerant in the evaporator tube 23 is removed even if the stirring device 30 is operated first. There is a possibility that it cannot be sufficiently cooled by the cooling water. Therefore, if the detected temperature (Tr) of the refrigerant temperature sensor 24 is 30 ° C. or higher, the control device 40 determines “NO” in step 301 and proceeds to step 304 to operate the refrigeration device 20 first. The cooling water in the cooling water tank 12 is gradually cooled from the periphery of the evaporation pipe 23. At this time, since the cooling water in the cooling water tank 12 is not stirred by the stirring device 30, the temperature of the refrigerant in the evaporation pipe 23 is not easily increased by the cooling water in the portion that is not cooled. The cooling water in the cooling water tank 12 is gradually cooled by the operation of the refrigeration apparatus 20.

  Next, the control device 40 determines whether or not the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than 30 ° C. in step 305. If the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than 30 ° C., the control device 40 determines “YES” in step 305 and proceeds to step 306 to operate the stirring device 30. The cooling water in the cooling water tank 12 is agitated by the agitating device 30, so that the temperature becomes uniform as a whole from the state of being locally cooled around the evaporation pipe 23. The control device 40 determines in step 308 whether a predetermined time has elapsed since the power switch was turned on. If the predetermined time has not elapsed, the control device 40 returns to step 304.

  The temperature of the cooling water around the evaporation pipe 23 in the cooling water tank 12 rises due to the operation of the stirring device 30 by the processing in step 306. When the cooling water in the cooling water tank 12 is not sufficiently cooled, the temperature of the refrigerant returning from the evaporation pipe 23 to the compressor 21 rises again. At this time, the control device 40 determines “NO” in step 305, proceeds to step 307, and stops the operation of the stirring device 30. By repeatedly executing the processes of steps 304 to 308, the cooling water in the cooling water tank 12 is gradually cooled around the evaporation pipe 23. Further, by gradually cooling the cooling water in the cooling water tank 12, it is possible to prevent a large load from being continuously applied to the compressor 21. When a predetermined time has elapsed since the power was turned on, the cooling water in the cooling water tank 12 is sufficiently cooled. Therefore, when a predetermined time has elapsed since the power was turned on, the control device 40 determines “YES” in step 308. Is determined.

  By controlling in this way, before the stirring device 30 is operated, the refrigeration device 20 only cools the cooling water around the evaporation pipe 23, so the temperature of the refrigerant returning from the evaporation pipe 23 to the compressor 21 continues. Therefore, the compressor 21 can be prevented from being continuously subjected to a high load. Further, the cooling water in the cooling water tank 12 is first cooled around the evaporation pipe 23, and the cooled portion around the evaporation pipe 23 is stirred by the agitator 30 so that the cooling water in the cooling water tank 12 is cooled. Since the whole was gradually cooled, it was difficult to apply a load to the compressor 21.

  After the processing in step 303 or the determination of “YES” in step 308, the control device 40 controls the operation of the refrigeration device 20 based on the detection of the ice thickness sensor 25 and is formed around the evaporation pipe 23. The ice layer is controlled so as to have a predetermined thickness (not shown because it is known).

(Control program 4)
This control program controls the operations of the refrigeration apparatus 20 and the stirring apparatus 30 based on the detected temperatures of the water temperature sensor 16 and the refrigerant temperature sensor 24 when the power is turned on by the power switch 41. As shown in FIG. 6, when the power is turned on by the power switch 41, the control device 40 determines in step 401 whether or not the detected temperature (Tr) of the refrigerant temperature sensor 24 is 30 ° C. or higher as a predetermined temperature. judge. If the detected temperature (Tr) of the refrigerant temperature sensor 24 is 30 ° C. or higher, “YES” is determined in step 401, and the process proceeds to step 402. Next, in step 402, the control device 40 determines whether or not the detected temperature (Tr) of the refrigerant temperature sensor 24 is equal to or higher than the detected temperature (Tw) of the water temperature sensor 16. When the detected temperature (Tr) of the refrigerant temperature sensor 24 is equal to or higher than the detected temperature (Tw) of the water temperature sensor 16, the control device 40 determines “YES” in step 402, and the stirring device 30 first in step 403. The refrigeration apparatus 20 is operated after a predetermined time has elapsed in step 404. The refrigerant in the evaporation pipe 23 is cooled by the cooling water in the cooling water tank 12 stirred by the stirring device 30, and as a result, the pressure of the refrigerant in the evaporation pipe 23 decreases. As a result, even when the refrigeration apparatus 20 is operated, the pressure of the refrigerant flowing into the compressor 21 from the evaporation pipe 23 does not increase, and a large load is not applied to the compressor 21. It became difficult to occur.

  On the other hand, when the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than the detected temperature (Tw) of the water temperature sensor 16, the control device 40 determines “NO” in step 402, and in step 405, the refrigeration device 20. The stirrer 30 is activated after a predetermined time has elapsed in step 406. By controlling in this way, before the stirring device 30 is operated, the refrigeration device 20 only cools the cooling water around the evaporation pipe 23, so the temperature of the refrigerant returning from the evaporation pipe 23 to the compressor 21 continues. Therefore, the compressor 21 can be prevented from being continuously subjected to a high load. Further, the cooling water in the cooling water tank 12 is first cooled around the evaporation pipe 23, and the cooled portion around the evaporation pipe 23 is stirred by the agitator 30 so that the cooling water in the cooling water tank 12 is cooled. Since the whole was gradually cooled, it was difficult to apply a load to the compressor 21. Instead of the processes in steps 405 and 406, the processes in steps 204 to 206 of the control program 2 or the steps 304 to 308 of the control program 3 may be executed.

  If the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than 30 ° C. when the power is turned on by the power switch 41, the control device 40 determines “NO” in step 401 and proceeds to step 407. Next, in step 407, the control device 40 determines whether or not the detected temperature (Tr) of the refrigerant temperature sensor 24 is equal to or higher than the detected temperature (Tw) of the water temperature sensor 16. When the detected temperature (Tr) of the refrigerant temperature sensor 24 is equal to or higher than the detected temperature (Tw) of the water temperature sensor 16, the control device 40 determines “YES” in step 407, and first determines the stirring device 30 in step 408. In step 409, the refrigeration apparatus 20 is operated after a predetermined time has elapsed. The refrigerant in the evaporation pipe 23 is cooled by the cooling water in the cooling water tank 12 stirred by the stirring device 30, and as a result, the pressure of the refrigerant in the evaporation pipe 23 decreases. As a result, even when the refrigeration apparatus 20 is operated, the pressure of the refrigerant flowing into the compressor 21 from the evaporation pipe 23 does not increase, and a large load is not applied to the compressor 21. It became difficult to occur.

  On the other hand, when the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than 30 ° C. and the detected temperature (Tr) of the refrigerant temperature sensor 24 is lower than the detected temperature (Tw) of the water temperature sensor 16, the control device 40 performs step 407. In step 410, the refrigeration apparatus 20 and the stirring apparatus 30 are operated simultaneously. At this time, since the temperature of the refrigerant in the evaporation pipe 23 is low, a large load is not applied to the compressor 21 even if the refrigeration apparatus 20 and the stirring apparatus 30 are operated simultaneously as in the conventional case. Instead of the process of simultaneously operating the refrigeration apparatus 20 and the stirring apparatus 30 in step 410, the refrigeration apparatus 20 may be operated after a predetermined time has elapsed since the stirring apparatus 30 was operated.

  After executing the processing of step 403, 406, 409, or 410, the control device 40 controls the operation of the refrigeration device 20 based on the detection of the ice thickness sensor 25, and ice formed around the evaporation pipe 23. The layer is controlled so as to have a predetermined thickness (not shown because it is known).

  By executing each control program described above, it becomes difficult for a large load to be applied to the compressor 21 when the operation of the refrigeration apparatus 20 is started, and it becomes difficult for the compressor 21 to start up poorly. Moreover, since it becomes difficult to apply a big load to the compressor 21, it is not necessary to use an expensive compressor because of high performance, and an increase in cost can be prevented.

  In said embodiment, what is necessary is just to run any one of the control programs 1-4. When the control program 2 is executed, the refrigerant temperature sensor 24 may not be provided as long as the water temperature sensor 16 is provided. Similarly, when the control program 3 is executed, the water temperature sensor 16 may not be provided as long as the coolant temperature sensor 24 is provided.

  In the above embodiment, each control program determines whether or not each detected temperature of the water temperature sensor 16 or the refrigerant temperature sensor 24 is lower than 30 ° C. as a predetermined temperature, but 30 ° C. as a predetermined temperature is an example. However, similar effects can be obtained even in a range higher or lower than 30 ° C., for example, 5 ° C.

DESCRIPTION OF SYMBOLS 10 ... Beverage dispenser, 12 ... Cooling water tank, 20 ... Refrigeration apparatus, 30 ... Stirrer, 40 ... Control apparatus, 41 ... Power switch.

Claims (8)

A cooling water tank for storing cooling water to cool the beverage, a refrigeration apparatus for cooling the cooling water in the cooling water tank, and a stirring device for stirring the cooling water in the cooling water tank,
The refrigeration apparatus includes a compressor that compresses refrigerant gas, a condenser that cools and liquefies the refrigerant gas compressed by the compressor, and a liquefied refrigerant that is disposed in the cooling water tank and liquefied by the condenser. An evaporation pipe that is vaporized by heat exchange with cooling water and returned to the compressor again,
A beverage dispenser provided with at least one of a refrigerant temperature sensor for detecting a refrigerant temperature in the refrigerant gas outlet part of the evaporation pipe and a water temperature sensor for detecting a temperature of cooling water in the cooling water tank,
When the beverage dispenser is turned on, when the detected temperature of the refrigerant temperature sensor or the detected temperature of the water temperature sensor is lower than a predetermined temperature, the refrigeration device is controlled to operate after the stirring device is operated. A beverage dispenser characterized by that. The beverage dispenser of claim 1 ,
When the beverage dispenser is turned on, if the detected temperature of the refrigerant temperature sensor or the detected temperature of the water temperature sensor is equal to or higher than the predetermined temperature, the stirrer is activated after the refrigeration apparatus is activated. A beverage dispenser characterized by being controlled. The beverage dispenser of claim 2 ,
A beverage dispenser controlled to operate the agitation device when the temperature detected by the refrigerant temperature sensor falls below the predetermined temperature after the refrigeration device is operated first. The beverage dispenser of claim 2 ,
A beverage dispenser characterized in that after the refrigeration apparatus is operated first, the stirring apparatus is controlled to be operated continuously when the temperature detected by the water temperature sensor becomes lower than the predetermined temperature. A cooling water tank for storing the cooling water to cool the beverage, a refrigeration apparatus for cooling the cooling water in the cooling water tank, a stirring device for stirring the cooling water in the cooling water tank, and cooling provided in the cooling water tank A water temperature sensor that detects the temperature of the water,
The refrigeration apparatus includes a compressor that compresses refrigerant gas, a condenser that cools and liquefies the refrigerant gas compressed by the compressor, and a liquefied refrigerant that is disposed in the cooling water tank and liquefied by the condenser. An evaporating pipe that is vaporized by exchanging heat with cooling water and returned to the compressor again, and a beverage dispenser provided with a refrigerant temperature sensor that detects the temperature of the refrigerant in a refrigerant gas outlet portion of the evaporating pipe. There,
When the beverage dispenser is powered on, if the detected temperature of the refrigerant temperature sensor is equal to or higher than a predetermined temperature and the detected temperature of the refrigerant temperature sensor is equal to or higher than the detected temperature of the water temperature sensor, the stirring device is activated. The beverage dispenser is controlled so as to operate the refrigeration apparatus after being operated. The beverage dispenser according to claim 5 ,
When the detected temperature of the refrigerant temperature sensor is equal to or higher than the predetermined temperature and the detected temperature of the refrigerant temperature sensor is lower than the detected temperature of the water temperature sensor, the stirrer is activated after the refrigeration apparatus is activated. A beverage dispenser characterized by being controlled. The beverage dispenser according to claim 5 or 6 ,
When the detected temperature of the refrigerant temperature sensor is lower than the predetermined temperature and the detected temperature of the refrigerant temperature sensor is equal to or higher than the detected temperature of the water temperature sensor, the refrigeration apparatus is operated after the agitator is activated. A beverage dispenser characterized by the above. The beverage dispenser according to any one of claims 5 to 7 ,
When the detected temperature of the refrigerant temperature sensor is lower than the predetermined temperature and the detected temperature of the refrigerant temperature sensor is lower than the detected temperature of the water temperature sensor, the stirring device and the refrigeration device are controlled to operate simultaneously, or A beverage dispenser controlled to operate the refrigeration apparatus after the agitation apparatus is operated.

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