JP6043598B2 - Cleaning device - Google Patents

Description

  The present invention relates to a cleaning device, and more particularly to a cleaning device for cleaning a device such as a medical device.

  Patent Document 1 discloses a cleaning apparatus mainly intended for cleaning medical instruments. The cleaning device includes a cleaning tank having a water storage unit that stores an object to be cleaned and stores cleaning water in a lower portion, and a water supply unit that supplies cleaning water to be supplied from a water supply source such as a water supply to the water storage unit, Hot water supply means for supplying hot water cleaning water delivered from the water heater to the water storage section, a cleaning nozzle for jetting the cleaning water in the water storage section to the object to be cleaned contained in the cleaning tank, and a cleaning nozzle for cleaning water in the water storage section And a detergent supply device for supplying detergent into the washing tank. When the cleaning program of this cleaning apparatus is executed, a pre-cleaning step of cleaning using cleaning water obtained by mixing water and hot water supplied from the water supply means and the hot water supply means so as to be 50 ° C. or less, and supply from the hot water supply means Then, a main cleaning process for cleaning by adding a detergent to the hot water cleaning water and a rinsing cleaning process using the hot water cleaning water supplied from the hot water supply means are sequentially executed. The pre-cleaning step of this cleaning program is a cleaning water in which water and hot water supplied in equal amounts from the water supply means and the hot water supply means are mixed so that the protein does not coagulate due to the heat of the cleaning water and adhere to the object to be cleaned. Is used to control the washing water at 50 ° C. or lower.

JP 2012-080967 A

  The applicant of the present application has developed a cleaning device including a hot water supply device for supplying hot water to the water storage part of the cleaning tank in the cleaning device of Patent Document 1 described above. In this cleaning apparatus, after the rinsing cleaning process of the above-described cleaning program, a hot water sterilization process for performing hot water sterilization using hot water cleaning water of 80 to 90 ° C. supplied from the hot water supply apparatus is performed. When a cleaning program including a hot water disinfection process is executed with this cleaning device, residual heat remains in the cleaning tank after the hot water disinfection process, and when the cleaning program is continuously executed, the cleaning water of the pre-cleaning process remains in the cleaning tank. There was a risk that the temperature would rise due to the residual heat, and the protein might be solidified by the heat of the washing water and stick to the object to be washed. It is an object of the present invention to provide a cleaning apparatus that prevents the cleaning water in the pre-cleaning process from coagulating proteins and sticking to an object to be cleaned even if the cleaning program is continuously executed.

  In order to solve the above-mentioned problems, the present invention supplies a cleaning tank having a water storage part for storing an object to be cleaned and storing cleaning water in the lower part, a temperature sensor provided in the cleaning tank, and supplying the cleaning water to the water storage part. Supplied from the cleaning water supply means, the cleaning nozzle for ejecting the cleaning water of the water storage section to the object to be cleaned contained in the cleaning tank, the cleaning pump for sending the cleaning water of the water storage section to the cleaning nozzle, and the cleaning water supply means The cleaning water supply means includes a control device having a cleaning program for executing a cleaning process for injecting the cleaning water from the cleaning nozzle to the object to be cleaned by a cleaning pump a plurality of times. In a cleaning apparatus having water supply means for supplying cleaning water to a water storage section and hot water supply means for supplying cleaning water for hot water sent from a hot water supply source to the water storage section, the first cleaning step of the cleaning program is the water supply means and hot water supply. Means and water supplied from If the temperature detected by the temperature sensor before starting the cleaning water supply process in the pre-cleaning process is higher than the predetermined temperature when the pre-cleaning process is performed using cleaning water having a predetermined temperature or less consisting of hot water In the pre-cleaning step, the cleaning device is characterized in that it is controlled so that only the cleaning water is supplied from the water supply means without supplying hot water by the hot water supply means.

  In the cleaning apparatus configured as described above, the first cleaning process of the cleaning program is a pre-cleaning process in which cleaning is performed using cleaning water having a predetermined temperature or less including water and hot water supplied from the water supply means and the hot water supply means. In some cases, if the temperature detected by the temperature sensor when the pre-cleaning process is started is equal to or higher than a predetermined temperature, the pre-cleaning process supplies only clean water from the water supply means without supplying hot water by the hot water supply means. Since it controlled, it can prevent that the temperature of the washing water of a pre-cleaning process becomes higher than predetermined temperature by the residual heat which remains in a washing tank. Thus, for example, if the temperature of the washing water in the pre-washing process is set to be equal to or lower than the temperature at which blood or protein coagulates, the temperature of the pre-washing water does not become higher than the temperature at which blood or protein coagulates. It can prevent blood and protein from coagulating and sticking to the object to be cleaned.

  Further, the present invention provides, as other means for solving the above-mentioned problems, a cleaning tank having a water storage part for storing an object to be cleaned and storing cleaning water in the lower part, and a cleaning water supply means for supplying cleaning water to the water storage part. Cleaning the cleaning water supplied from the cleaning nozzle for jetting the cleaning water in the water storage section to the object to be cleaned contained in the cleaning tank, the cleaning pump for sending the cleaning water in the water storage section to the cleaning nozzle, and the cleaning water supply means A control device having a cleaning program for executing a cleaning process for injecting the object to be cleaned from the cleaning nozzle by a pump and performing cleaning a plurality of times is provided, and the cleaning supply means supplies the cleaning water for the water sent from the water supply source to the reservoir. In a cleaning apparatus having a water supply means to be supplied and a hot water supply means to supply hot water wash water sent from a hot water source to a water storage section, the first cleaning step of the cleaning program is supplied from the water supply means and the hot water supply means. A place consisting of water and hot water When it is a pre-cleaning process for cleaning with cleaning water at a temperature below, the last cleaning process of the cleaning program executed immediately before is a cleaning process for cleaning with high-temperature cleaning water at or above a predetermined temperature. The cleaning is characterized in that, within a predetermined time after the cleaning process is completed, control is performed so that only the cleaning water is supplied from the water supply means without supplying the hot water by the hot water supply means when the pre-cleaning process is executed. It may be a device. Even in this case, the same effect as described above can be obtained.

1 is a schematic view of a cleaning apparatus according to the present invention. It is a block diagram of a control apparatus. It is a figure which shows an operation panel. It is a flowchart which shows the program of the standby state before the start of a washing | cleaning program. It is a flowchart which shows the washing | cleaning program of an alkaline detergent course (1). It is a flowchart which shows the washing | cleaning program of an alkaline detergent course (2). It is a flowchart which shows the washing | cleaning program of an alkaline detergent course (3). It is a flowchart which shows the washing | cleaning program of an alkaline detergent course (4). It is a flowchart which shows this cleaning process of the cleaning program of the detergent course containing an enzyme. It is a flowchart when the hot water of a hot water supply apparatus is used for the cleaning water of this cleaning process in the cleaning program of the alkaline detergent course. It is a flowchart of another program when the hot water of a hot water supply apparatus is used for the cleaning water of this cleaning process in the cleaning program of the alkaline detergent course. It is a flowchart which shows the waste_water | drain process of each washing | cleaning process. It is a flowchart which shows another waste water treatment.

  Hereinafter, a cleaning apparatus according to the present invention will be described with reference to the drawings. The cleaning device 10 according to the present invention is mainly for cleaning medical instruments. As shown in FIG. 1, the cleaning apparatus 10 includes a cleaning tank 20 having a water storage unit 21 that stores an object to be cleaned such as a medical instrument placed in a rack A and stores cleaning water in a lower portion, and a water supply source. A water supply means 28 for supplying wash water sent from a certain water supply to the water storage section 21, a hot water supply means 29 for supplying hot water wash water from a water heater 30 as a hot water supply source to the water storage section 21, and hot water wash water And a hot water supply device 40 for supplying water to the water storage unit 21.

  The cleaning tank 20 is accommodated in a housing 11 having a door 12 on the front surface, and integrally includes a water storage unit 21 that stores cleaning water in a lower part. The lower surface of the cleaning tank 20 is inclined downward toward the water storage unit 21, and the cleaning water in the cleaning tank 20 flows into the water storage unit 21. A temperature sensor 22 is provided below the water storage section 21 of the cleaning tank 20, and the temperature sensor 22 mainly detects the temperature of the cleaning water. In addition, a heater 23 is provided below the water storage unit 21, and the heater 23 heats the cleaning water in the water storage unit 21.

  Washing nozzles 24 and 25 for injecting washing water onto the medical device are rotatably supported on the upper and lower surfaces of the washing tank 20, and a circulation pipe 26 led out from the water storage unit 21 is supported on these washing nozzles 24 and 25. It is connected. The circulation pipe 26 is provided with a cleaning pump 27 that sends the cleaning water of the water storage unit 21 to the cleaning nozzles 24 and 25. When the cleaning pump 27 is operated, the cleaning water in the water storage section 21 is sent to the cleaning nozzles 24 and 25 via the circulation pipe 26, and the cleaning nozzles 24 and 25 are rotated by the cleaning reaction force of the cleaning water while rotating the cleaning water. Inject toward a medical device. The cleaning water sprayed on the medical instrument falls and returns to the water storage unit 21.

  A water supply port and a hot water supply port for supplying cleaning water are formed in the upper part of the rear wall of the cleaning tank 20, and a water supply unit 28 constituting a cleaning water supply unit is connected to the water supply port. A hot water supply means 29 constituting the washing water supply means is connected. The water supply means 28 includes a water supply pipe 28a and a water supply valve 28b interposed in the water supply pipe 28a. The introduction end of the water supply pipe 28a is connected to a water supply source such as water supply, and the outlet end is connected to a water supply port. An elbow pipe 28c that guides the water supplied from the water supply pipe 28a downward is connected to the water supply opening, and the elbow pipe 28c directly hits a medical device in front of the water discharged in the horizontal direction from the water supply opening. It has a function to prevent this. A guide 28d for guiding the water discharged from the elbow pipe 28c to the lower part of the cleaning tank 20 is provided below the elbow pipe 28c. The guide 28d has a U-shape in which an upper end and a lower end are opened and a horizontal cross section is open to the rear wall side of the cleaning tank 20, and extends from the lower side of the elbow pipe 28c to the lower part of the cleaning tank 20. . The upper portion of the guide 28d is formed with a water intake port whose upper end extends forward. When the water supply valve 28b is opened, the water of the water supply source is supplied to the water storage part 21 of the cleaning tank 20 through the water supply pipe 28a, the elbow pipe 28c and the guide 28d.

  The hot water supply means 29 includes a hot water supply pipe 29a and a hot water supply valve 29b interposed in the hot water supply pipe 29a. The introduction end of the hot water supply pipe 29a is connected to a hot water supply source such as the hot water heater 30, and the outlet end is connected to a hot water outlet. An elbow pipe 29c that guides the hot water supplied from the hot water supply pipe 29a downward is connected to the hot water supply opening. The elbow pipe 29c directly hits a medical instrument in front of the hot water discharged from the hot water supply opening. It has a function to prevent this. A guide 29d for guiding water discharged from the elbow pipe 29c to the lower part of the cleaning tank 20 is provided below the elbow pipe 29c. The guide 29d has a U-shape with an upper end and a lower end opened and a horizontal cross section opened to the rear wall side of the cleaning tank 20, and extends from the lower side of the elbow pipe 29c to the lower part of the cleaning tank 20. . The upper portion of the guide 29d is formed with a water intake port whose upper end extends forward. When the hot water supply valve 29b is opened, the hot water in the water heater 30 is supplied to the water storage section 21 of the cleaning tank 20 through the hot water supply pipe 29a, the elbow pipe 29c, and the guide 29d.

  As shown in FIG. 1, a drain port 21a is formed on the bottom surface of the water storage unit 21, and a drain means 31 is connected to the drain port 21a. The drainage means 31 includes a drain pipe 31a connected to the drain port 21a and a drain pump 31b interposed in the drain pipe 31a. When the drain pump 31b is operated, the cleaning water in the water storage unit 21 is discharged to the outside of the cleaning device 10 through the drain pipe 31a.

  Two water level detection tanks 32 and 33 are connected to the water storage section 21 via drain pipes 31a upstream from the drain pump 31b. Float switches (water level sensors) 32a and 33a are connected to the water level detection tanks 32 and 33, respectively. Is housed. The float switch 32a detects that the cleaning water in the water storage section 21 is at or above the cleaning water level (predetermined water level) L1 necessary for cleaning. The float switch 32a is turned on when the cleaning water level L1 or higher, and is off when the cleaning water level is lower than the cleaning water level L1. It becomes. The float switch 33a detects that the cleaning water in the water storage unit 21 is higher than the abnormal water level L2 higher than the cleaning water level L1, and is turned on when it becomes higher than the abnormal water level L2, and is turned off when lower than the abnormal water level L2. Become. The abnormal water level L2 is a level slightly lower than the medical device accommodated in the cleaning tank 20, and is a water level for the purpose of preventing the medical instrument accommodated in the cleaning tank 20 from being immersed in the cleaning water. is there. In the present embodiment, the amount of water at the cleaning water level L1 is set to 6L, and the amount of water at the abnormal water level L2 is set to 8L.

  A detergent supply device 34 is connected to the cleaning tank 20. The detergent supply device 34 includes a detergent supply pipe 34a for sending detergent from the detergent tank D storing the detergent to the washing tank 20, and a detergent supply pump 34b interposed in the detergent supply pipe 34a. When the detergent supply pump 34b is operated, the detergent in the detergent tank D is supplied into the cleaning tank 20 through the detergent supply pipe 34a. The detergent stored in the detergent tank D is a detergent containing an enzyme containing an enzyme such as an alkaline detergent or a protease as a non-enzymatic detergent. In addition, as for the detergent containing an enzyme, the use at 50 degrees C or less is suitable as temperature at which enzymes, such as protease, do not deactivate. By replacing the detergent tank D, an alkaline detergent or an enzyme-containing detergent can be selectively used in the washing tank 20. The non-enzymatic detergent is not limited to an alkaline detergent, and may be a neutral or acidic detergent.

  An exhaust port 20 a is formed in the ceiling wall of the cleaning tank 20, and an exhaust pipe 35 for exhausting the exhaust discharged from the cleaning tank 20 out of the housing 11 is provided in the exhaust port 20 a.

  A hot water supply device 40 constituting cleaning water supply means is connected to the cleaning tank 20. The hot water supply device 40 supplies hot water heated from hot water supplied from a hot water supply source such as the water heater 30 to the water storage unit 21. The hot water supply device 40 preheats hot water sent from the water heater 30 to the hot water tank 41 by the heater 44 to make hot water, and stores hot water washing water overflowing from the hot water sent from the water heater 30 to the hot water tank 41. 21. A hot water supply pipe 42 derived from a hot water supply source such as a hot water heater 30 is connected to the upper part of the hot water tank 41, and a hot water supply valve 42 a is interposed in the hot water supply pipe 42. When the hot water supply valve 42 a is opened, the hot water in the water heater 30 is supplied to the hot water tank 41 through the hot water supply pipe 42.

  In the hot water tank 41, a guide cylinder 43 for guiding the hot water supplied from the hot water supply pipe 42 to the lower part is provided. A heater 44 is provided in the hot water tank 41, and the heater 44 heats the hot water supplied from the hot water supply pipe 42 into the hot water tank 41 to become hot water. A temperature sensor 45 is provided in the hot water tank 41, and the temperature sensor 45 detects the temperature of the hot water in the hot water tank 41. An overflow pipe 46 is provided in the hot water tank 41, and the lower end of the overflow pipe 46 is connected to the lower part of the cleaning tank 20. When hot water is supplied from the hot water supply pipe 42 into the hot water tank 41 so as to exceed the upper end of the overflow pipe 46, the hot water in the hot water tank 41 overflows from the upper end opening 46 a of the overflow pipe 46 and is supplied to the water storage unit 21.

  The cleaning device 10 includes a control device 50. As shown in FIG. 2, the control device 50 includes a temperature sensor 22, a heater 23, a cleaning pump 27, a water supply valve 28b, a hot water supply valve 29b, a drainage pump 31b, Float switches 32a and 33a, a detergent supply pump 34b, a hot water supply valve 42a, a heater 44, and a temperature sensor 45 are connected. The control device 50 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 CPU determines the heater 23, the cleaning pump 27, the water supply valve 28b, the hot water supply valve 29b, the drainage pump 31b, the detergent supply based on the temperature detected by the temperature sensors 22 and 45, the ON / OFF signal from the float switches 32a and 33a, and the timer timing. The operation of the pump 34b, the hot water supply valve 42a and the heater 44 is controlled to execute the cleaning program shown below. The RAM temporarily stores variables and the like necessary for executing the cleaning program, and the ROM stores the cleaning program.

  The control device 50 has a cleaning pump control unit 51 that controls the number of rotations of the cleaning pump 27, and the control device 50 controls the number of rotations of the cleaning pump 27 by the cleaning pump control unit 51 and controls the cleaning pump 27 to the cleaning nozzle. The supply flow rate of the washing water 24 and 25 is controlled. The cleaning pump control unit 51 controls the rotational speed to be reduced in two stages (20% and 50%) compared to when the cleaning pump 27 is rotated at the rated output (maximum output during normal operation). In this embodiment, the cleaning pump control unit 51 uses a triac to control the energization time of the motor of the cleaning pump 27 to control the rotation speed of the cleaning pump 27. However, other control means such as inverter control and phase control are used. The rotational speed of the cleaning pump 27 may be controlled using

  The control device 50 has a drain pump control unit 52 that controls the rotational speed of the drain pump 31b, and the control device 50 controls the drain pump 31b so that the rotational speed of the drain pump 31b is lower than the rated output by the drain pump control unit 52. The drainage flow rate of 31b is controlled. In this embodiment, the drain pump control unit 52 controls the rotational speed of the drain pump 31b by controlling the energization time of the motor of the drain pump 31b using a triac. However, other control means such as inverter control and phase control are used. May be used to control the rotational speed of the drainage pump 31b.

  The control device 50 is connected to the operation panel 60 shown in FIG. 3 provided on the front panel of the housing 11. The “detergent replacement” button on the operation panel 60 is a button operated when the detergent tank D is replaced. The “detergent replacement” button may be used to select a cleaning program using an alkaline detergent or a cleaning program using an enzyme-containing detergent. In addition, by operating the “course” button on the operation panel 60, a cleaning program including a hot water disinfection process including a pre-cleaning process, a main cleaning process, a rinsing cleaning process, and a hot water disinfection process in a cleaning program using each detergent. And a cleaning program that does not include a hot water disinfection process including a pre-cleaning process, a main cleaning process, and a rinsing cleaning process can be selected. In addition, when the “course” button on the operation panel 60 is operated, it is possible to select cleaning programs having different lengths of cleaning time in the main cleaning process.

  Next, a description will be given of a standby program before the cleaning program is executed in the cleaning apparatus 10. In addition, it demonstrates in the state in which the state in which the water or hot water remains in the hot water tank 41 is demonstrated. When the main power supply of the cleaning device 10 is turned on, as shown in FIG. 4, the control device 50 determines in step 101 whether or not the “operation” switch of the operation panel 60 is turned on, and the “operation” switch. If is turned on, “YES” is determined, and the process proceeds to step 102. In step 102, the control device 50 inputs the course of the cleaning program. As for the course of this cleaning program, if there is a cleaning program executed immediately before, the course is input, and if the course of the cleaning program is input by the “course” switch of the operation panel 60, the course is input.

  Next, in Step 103, the control device 50 determines whether or not the temperature of the hot water is 72 ° C. or lower by the temperature sensor 45 of the hot water tank 41. If it is 72 ° C. or lower, the control device 50 proceeds to Step 104 for the hot water tank 41. The heater 44 is energized to heat the hot water in the hot water tank 41. On the other hand, if the hot water temperature is higher than 72 ° C. by the temperature sensor 45 of the hot water tank 41, the control device 50 determines “NO” in step 103 and proceeds to step 105.

  In step 105, the control device 50 determines whether or not the temperature of the hot water is 75 ° C. or higher by the temperature sensor 45 of the hot water tank 41, and if it is 75 ° C. or higher, the control device 50 proceeds to step 106 and the heater 44 for the hot water tank 41. Stop energizing. On the other hand, if the temperature of the hot water is lower than 75 ° C. by the temperature sensor 45 of the hot water tank 41, the control device 50 determines “NO” in step 105 and proceeds to step 107.

  In step 107, the control device 50 determines whether or not the course of the cleaning program input in step 102 is a cleaning program including a hot water disinfection process. If the cleaning program does not include a hot water disinfection process, "NO" is determined. Determine and proceed to step 108. In step 108, the control device 50 displays the cleaning program course on the display 61 of the operation panel 60. When the course of the cleaning program is displayed on the display 61 of the operation panel 60, the cleaning program can be executed. In step 109, the controller 50 determines whether or not the flag F1 indicating whether or not there is a cleaning program reservation is “1” indicating that there is a reservation, and “0” indicating that there is no cleaning program reservation. If so, it is determined as “NO” and the process proceeds to Step 110. In step 110, the control device 50 determines whether or not the “start” switch of the operation panel 60 is turned on. If the “start” switch is turned on, the control device 50 determines “YES”. Execute. After executing the cleaning program in step 115, the control device 50 returns the flag F1 indicating whether or not there is a cleaning program reservation to "0" indicating that there is no reservation in step 116.

  If the cleaning program input in step 102 is a course including a hot water disinfection process, the control device 50 determines “YES” in step 107 and proceeds to step 111. In step 111, the control device 50 determines whether or not the temperature of the hot water is 70 ° C. or less by the temperature sensor 45 of the hot water tank 41, and determines “NO” if the temperature of the hot water is higher than 70 ° C. Proceed to 108.

  On the other hand, if the temperature of the hot water in the hot water tank 41 is 70 ° C. or less, the control device 50 determines “YES” in step 111, and proceeds to step 112. In step 112, the control device 50 displays “ON” on the display 61 of the operation panel 60. Since “ON” is displayed on the display 61 because the hot water temperature in the hot water tank 41 cannot be raised to 93 ° C. until the hot water disinfection step of the cleaning program is executed, the cleaning program is Indicates that it cannot be executed immediately.

  Next, in step 113, the control device 50 determines whether or not the “start” switch of the operation panel 60 is turned on. If the “start” switch is turned on, it determines “YES” and proceeds to step 114. . In step 114, the control device 50 inverts the flag F1 indicating whether or not there is a cleaning program reservation. That is, if the flag F1 indicating the reservation of the cleaning program is “0” indicating that there is no reservation, it is changed to “1” indicating that there is a reservation, and if “1” indicating that there is a reservation, there is no reservation. Change it to “0”. In this way, even if the cleaning program cannot be immediately executed, it is possible to accept a cleaning program reservation, and it is also possible to cancel a reservation once received. In the state where there is a cleaning program reservation, the control device 50 blinks “.” Behind the “ON” display on the display 61 of the operation panel 60 to indicate that there is a cleaning program reservation. May be.

  If the temperature in the hot water tank 41 becomes higher than 70 ° C. during the above processing, the control device 50 determines “NO” in Step 111 and proceeds to Step 108. In step 108, the control device 50 changes the display of “ON” on the display 61 of the operation panel 60 to display the course of the cleaning program. In step 109, the control device 50 determines whether or not the flag F1 indicating that the cleaning program is reserved is “1”. If the flag F1 is set to “1” in step 114, “ If YES, the process proceeds to step 115. In step 115, the control device 50 executes a cleaning program that will be described later. After executing the cleaning program in step 115, the control device 50 returns the flag F1 indicating whether or not there is a cleaning program reservation to "0" indicating that there is no reservation in step 116. Note that the hot water in the hot water tank 41 is supplied to the heater 44 so that the temperature detected by the temperature sensor 45 is 93 ° C. or higher as the temperature suitable for hot water disinfection from the start of the cleaning program until the end of the hot water disinfection process. It is energized and heated so that the hot water in the hot water tank 41 becomes hot water.

  Next, as an example of the cleaning program of the cleaning apparatus 10, a cleaning program for the alkaline detergent course will be described. The cleaning program for the alkaline detergent course described below is a cleaning program including a hot water disinfection process including a pre-cleaning process, a main cleaning process, a rinsing cleaning process, and a hot water disinfection process (cleaning process). The cleaning program that does not include the hot water sterilization process is a cleaning program that includes the hot water sterilization process described below, but omits the hot water sterilization process, but the rinsing process is performed by executing a rinsing cleaning process instead of the hot water sterilization process. You may perform a washing | cleaning process twice. The cleaning program includes a normal mode cleaning program and a measurement mode cleaning program for measuring the feed water flow rate, the hot water supply flow rate, and the drainage flow rate. The measurement mode cleaning program is performed once every 50 times as a predetermined number of times. Executed.

  The normal mode of the alkaline detergent course cleaning program will be described below. As shown in FIGS. 5 to 8, the controller 50 first causes the pre-cleaning process to be executed in steps 201 to 207. In the pre-cleaning process, before the main cleaning process using high-temperature cleaning water, the blood is washed with cleaning water at 50 ° C. or less (the highest possible temperature of 50 ° C. or less so that the cleaning power does not decrease) at which blood and proteins do not coagulate. This is a washing process in which dirt of protein and protein is removed in advance.

  First, in order to determine whether or not the remaining heat after performing the hot water disinfection process of the immediately preceding cleaning program remains in the cleaning tank 20, the control device 50 uses the temperature sensor 22 for the cleaning tank 20 in step 201. It is determined whether the detected temperature is 43 ° C. or higher. If the temperature in the cleaning tank 20 is 43 ° C. or higher due to the remaining heat in the hot water disinfection process of the immediately preceding cleaning program, the control device 50 determines “YES” in step 201 and proceeds to step 202. If the control apparatus 50 opens the water supply valve 28b in step 202, the water of a water supply source will be sent to the water storage part 21 of the washing tank 20 through the water supply pipe 28a. On the other hand, if the temperature in the cleaning tank 20 is lower than 43 ° C., the control device 50 determines “NO” in step 201 and proceeds to step 203. When the control device 50 opens the water supply valve 28b and the hot water supply valve 29b for the cleaning tank 20 in step 203, the water and hot water of the water supply source and the hot water heater 30 pass through the water supply pipe 28a and the hot water supply pipe 29a. It is sent to 20 water storage units 21. It should be noted that the water supply valve 28b and the hot water supply valve 29b are set so that, for example, the water supply amount and the hot water supply amount are equal to each other using the hot water supply flow rate calculated by the hot water supply flow rate calculating means and the hot water supply flow rate calculated by the hot water supply flow rate calculating means. The opening / closing operation may be controlled. In this way, in the pre-cleaning step, the water of the water supply source and the hot water of the water heater 30 are supplied so that the temperature of the cleaning water in the water storage unit 21 does not exceed 50 ° C. as the predetermined temperature. When the remaining heat of the hot water sterilization process of the cleaning program executed immediately before remains in the interior of the basin, only the water of the water supply source is supplied without supplying the hot water of the water heater 30, so that the cleaning water of the water storage section 21 is supplied. The temperature was not allowed to exceed 50 ° C.

  In step 204, the control device 50 determines whether or not the cleaning water in the water storage unit 21 has reached the cleaning water level L1 by the detection of the float switch 32a. In step 204, the control device 50 repeatedly determines “NO” until the cleaning water in the water storage unit 21 reaches the cleaning water level L1, while the cleaning water in the water storage unit 21 becomes the cleaning water level L1 and the float switch 32a. If an ON signal is input from, “YES” is determined, and the process proceeds to step 205. In step 205, the control device 50 closes the water supply valve 28b if only the water supply valve 28b is opened in step 202, and if the water supply valve 28b and the hot water supply valve 29b are opened in step 203, the water supply valve 28b. 28b and the hot water supply valve 29b are closed, and water supply process is complete | finished.

  Next, in step 206, the controller 50 operates the cleaning pump 27 for 1 minute as a cleaning process in the pre-cleaning process. In the pre-cleaning process, the control device 50 operates the cleaning pump 27 at the rated output (normal maximum output). The cleaning water in the water storage unit 21 is pumped to the cleaning nozzles 24 and 25 through the circulation pipe 26, and the cleaning nozzles 24 and 25 spray and wash the cleaning water onto the medical instrument while rotating. After the cleaning process, in step 207, the control device 50 executes a drain process of step 400 described later to drain the cleaning water of the water storage unit 21.

  When the pre-cleaning process in steps 201 to 207 is completed, the control device 50 causes the main cleaning process to be executed in steps 211 to 227. In this main cleaning process, in step 211, the control device 50 opens the hot water supply valve 29b for the cleaning tank 20, and intermittently operates the drain pump 31b. The low temperature hot water remaining in the hot water supply pipe 29a is sent to the water storage part 21 of the washing tank 20 by hot water sent from the hot water heater 30, and drained by the drain pump 31b that is operated intermittently. When the control device 50 stops the operation of the drainage pump 31b in step 212 after a predetermined time has passed when the hot water remaining in the hot water supply pipe 29a disappears, the hot water passing through the hot water supply pipe 29a from the hot water heater 30 is washed. The water is stored in the 20 water storage units 21, and the water level of the water storage unit 21 gradually rises. In step 213, the control device 50 detects the temperature sensor 22 so that the cleaning water in the water storage unit 21 is 65 ° C. or higher as a predetermined set temperature at which the cleaning power using the alkaline detergent can exert a high cleaning power. It is determined whether or not the temperature is 65 ° C. or higher as the set temperature. In step 214, the controller 50 energizes the heater 23 to heat the cleaning water. Next, in Step 216, the control device 50 determines whether or not the cleaning water in the water storage section 21 has reached the cleaning water level L1 by detection by the float switch 32a. If the cleaning water in the water reservoir 21 is not at the cleaning water level L1, the control device 50 returns to step 213.

  When the cleaning water in the water storage unit 21 reaches 65 ° C. or more, which is the set temperature during hot water supply, the control device 50 determines “YES” in step 213 and proceeds to step 215, and in step 215, energizes the heater 23. Stop. When the processing of steps 213 to 216 is executed, if the water level of the cleaning water in the water storage unit 21 becomes the cleaning water level L1 and an ON signal is input from the float switch 32a, the control device 50 determines “YES”. Then, the process proceeds to step 217. In step 217, the control device 50 closes the hot water supply valve 29b for the cleaning tank 20 and ends the hot water supply process.

  Next, as a cleaning process in the main cleaning process, the control device 50 operates the detergent supply pump 34b to supply an alkaline detergent into the cleaning tank 20 in step 218, and in step 219, the cleaning pump control unit 51 The rotational speed of the cleaning pump 27 is reduced to 50% from the rated output (maximum rotational speed in normal operation) and is operated for 10 seconds. The cleaning water containing the detergent in the water storage unit 21 is sent to the cleaning nozzles 24 and 25 via the circulation pipe, and the cleaning nozzles 24 and 25 spray the cleaning water onto the medical instrument with a weak momentum while rotating. At this time, since the rotational speed of the cleaning pump 27 is lowered and operated, the rapid increase in temperature in the cleaning tank 20 can be suppressed, and as a result, the pressure in the cleaning tank 20 does not increase rapidly. The air in the cleaning tank 20 is not exhausted vigorously from the exhaust port 20a. Thereby, the washing water sprayed by the washing nozzles 24 and 25 in the washing tank 20 does not scatter to the outside from the exhaust port 20a.

  Next, in step 220, the control device 50 operates the cleaning pump 27 at the rated output. Accordingly, the cleaning water containing the alkaline detergent in the water storage unit 21 is pumped to the cleaning nozzles 24 and 25 via the circulation pipe 26, and the cleaning nozzles 24 and 25 spray the cleaning water onto the medical instrument while rotating. And wash. Further, in step 221, the control device 50 determines whether or not the detected temperature of the temperature sensor 22 is 65 ° C. or higher as the set temperature, and determines “NO” if it is not 65 ° C. or higher which is the set temperature. Proceed to step 222. In step 222, the controller 50 energizes the heater 23 to heat the cleaning water. Next, in step 225, the control device 50 determines whether or not 3 minutes have elapsed as a predetermined time from the start of timing, and if 3 minutes have not elapsed since the start of timing, the control device 50 determines “NO”. Return to step 221.

  When the wash water in the water storage unit 21 reaches 65 ° C. or higher during hot water supply, the controller 50 determines “YES” in step 221, proceeds to step 223, and stops energization of the heater 23 in step 223. In step 224, the controller 50 starts measuring the cleaning time. When the processing of steps 221 to 225 is being executed, if 3 minutes elapses as a predetermined time from the start of timing, the control device 50 determines “YES” and proceeds to step 226. In step 226, the controller 50 stops the operation of the cleaning pump 27. If the heater 23 is energized at this time, the control device 50 stops energization of the heater 23 as well.

  After this cleaning process, in step 227, the control device 50 executes a drainage process in step 400 described later to drain the cleaning water in the water storage unit 21.

  When the main cleaning process in steps 211 to 227 is finished, the control device 50 causes the rinse cleaning process to be executed in steps 231 to 235. In this rinsing process, the controller 50 opens the hot water supply valve 29b for the cleaning tank 20 in Step 231, and starts the hot water supply process in the rinsing process. Hot water from the water heater 30 is sent to the water storage section 21 of the cleaning tank 20 through the hot water supply pipe 29a. In step 232, the control device 50 determines whether or not the cleaning water in the water storage section 21 in the cleaning tank 20 has reached the cleaning water level L1 by detection of the float switch 32a. In step 232, the control device 50 repeatedly determines “NO” until the cleaning water in the water storage section 21 reaches the cleaning water level L1, and the cleaning water in the water storage section 21 becomes the cleaning water level L1 and the float switch 32a. If an ON signal is input from, “YES” is determined, and the process proceeds to step 233. In step 233, the controller 50 closes the hot water supply valve 29b for the cleaning tank 20 and ends the hot water supply process.

  Next, in step 234, the controller 50 operates the cleaning pump 27 at the rated output for 15 seconds as a cleaning process in the rinse cleaning process. The cleaning water in the water storage unit 21 is pumped to the cleaning nozzles 24 and 25 via the circulation pipe 26, and the cleaning nozzles 24 and 25 spray the cleaning water onto the medical instrument while rotating, thereby supplying the cleaning water containing the detergent. Wash away. After the cleaning process, in step 235, the control device 50 executes a drain process of step 400 described later to drain the cleaning water of the water storage unit 21.

  When the rinsing cleaning process in steps 231 to 235 is completed, the control device 50 causes the hot water disinfection process to be executed in steps 241 to 256. In this hot water disinfection process, in step 241, the control device 50 opens the hot water supply valve 42a for the hot water tank 41 and starts the hot water supply process in the hot water disinfection process. The hot water in the water heater 30 is sent into the hot water tank 41 through the hot water pipe 42, and the hot water in the hot water tank 41 overflows from the overflow pipe 46 with the supplied hot water and is sent out to the water storage unit 21. In step 242, the control device 50 determines whether or not the hot water in the water storage unit 21 has reached the cleaning water level L1 by detection of the float switch 32a. In step 242, the controller 50 repeatedly determines “NO” until the hot water in the water storage unit 21 reaches the cleaning water level L1, and the hot water in the water storage unit 21 becomes the cleaning water level L1 and is turned on from the float switch 32a. If a signal is input, “YES” is determined, and the process proceeds to step 243. In step 243, the control device 50 closes the hot water supply valve 42 a for the hot water tank 41 and ends the hot water supply process.

  In the hot water disinfection cleaning process, in step 244, the control device 50 causes the cleaning pump control unit 51 to reduce the rotation speed of the cleaning pump 27 from the rated output (maximum rotation speed in normal operation) to 20% and operate it for 20 seconds. Next, in step 245, the controller 50 causes the cleaning pump controller 51 to reduce the rotational speed of the cleaning pump 27 from the rated output (maximum rotational speed in normal operation) to 50% and operate it for 40 seconds. Washing water of hot water in the water storage unit 21 is sent to the cleaning nozzles 24 and 25 through the circulation pipe, and the cleaning nozzles 24 and 25 spray the cleaning water to the medical instrument with a weak momentum while rotating. At this time, since the rotational speed of the cleaning pump 27 is lowered and operated, the rapid increase in temperature in the cleaning tank 20 can be suppressed, and as a result, the pressure in the cleaning tank 20 does not increase rapidly. The air in the cleaning tank 20 is not exhausted vigorously from the exhaust port 20a. Thereby, the washing water sprayed by the washing nozzles 24 and 25 in the washing tank 20 does not scatter to the outside from the exhaust port 20a.

  In step 246, the controller 50 operates the cleaning pump 27 at the rated output. Hot water in the water reservoir 21 is pumped to the cleaning nozzles 24 and 25 through the circulation pipe 26, and the cleaning nozzles 24 and 25 spray and wash the cleaning water onto the medical instrument while rotating.

  In step 247, the control device 50 starts measuring the hot water disinfection time using a timer. Next, in step 248, the control device 50 determines whether or not the temperature detected by the temperature sensor 22 for the cleaning tank 20 is 81 ° C. or less. If the hot water in the water storage unit 21 is 81 ° C. or lower, the control device 50 determines “YES” in step 248 and proceeds to step 249. In step 249, the controller 50 energizes the heater 23 for the cleaning tank 20 to heat the hot water in the water storage unit 21. On the other hand, if the hot water in the water storage unit 21 is higher than 81 ° C., the control device 50 determines “NO” in step 248 and proceeds to step 250.

  In step 250, the controller 50 determines whether or not the temperature detected by the temperature sensor 22 for the cleaning tank 20 is 83 ° C. or higher. If the hot water in the water storage unit 21 is 83 ° C. or higher, the control device 50 determines “YES” in step 250 and proceeds to step 251. In step 251, the control device 50 stops energization of the heater 23 for the cleaning tank 20. On the other hand, if the hot water in the water storage unit 21 is lower than 83 ° C., the control device 50 determines “NO” in step 250 and proceeds to step 252.

  In step 252, the controller 50 determines whether or not the temperature detected by the temperature sensor 22 for the cleaning tank 20 is equal to or higher than 80 ° C. in the temperature range suitable for disinfection. If the temperature of the hot water in the water storage unit 21 is 80 ° C. or higher, the temperature is suitable for disinfection, and therefore the control device 50 determines “YES” in step 252 and proceeds to step 253. On the other hand, if the hot water in the water storage section exchanges heat with the inner wall of the washing tank 20 or the medical instrument and the temperature decreases, and the hot water in the water storage section 21 is lower than 80 ° C., the control device 50 At 252, “NO” is determined, and the process returns to step 247. Thus, if the hot water in the water storage part 21 becomes lower than 80 degreeC, it will return to step 247 and the measurement of the hot water disinfection time will be newly started.

  After the processing of step 252, the control device 50 determines in step 253 whether or not the hot water disinfection time started in step 247 has elapsed for 10 minutes. If the hot water disinfection time has not elapsed 10 minutes, the control device 50 makes a “NO” determination at step 253 and returns to step 248.

  When the hot water disinfection time in which the hot water in the water storage unit 21 is maintained at 80 ° C. or more has started counting time from step 247 for 10 minutes, the control device 50 determines “YES” in step 253, Proceed to step 254. In step 254, the controller 50 stops energization of the heater 23 for the cleaning tank 20, and stops the operation of the cleaning pump 27 in step 255. In this manner, the medical instrument is sterilized by injecting hot water maintained at 80 ° C. or more from the cleaning nozzles 24 and 25 for 10 minutes. After the hot water cleaning process, in step 256, the control device 50 executes a draining process in step 400 described later to drain the cleaning water in the water storage unit 21.

  Next, the cleaning program in the measurement mode will be described. Regarding the cleaning program in the measurement mode, differences from the above-described normal mode cleaning program will be described. First, the water supply flow rate calculation means for calculating the flow rate of water supplied from the water supply source such as a water supply to the water storage unit 21 through the water supply pipe 28a opens only the water supply valve 28b in the pre-cleaning step, and the water storage unit 21 from the water supply pipe 28a. The time until the cleaning water in the water storage section 21 reaches the cleaning water level L1 and the ON signal is input from the float switch 32a is measured. The water supply flow rate per unit time from the water supply pipe 28a is calculated using the time (t1) required to supply the cleaning water (6L) at the cleaning water level L1 of the water storage unit 21 (water supply flow rate (L / s ) = 6 (L) / t1 (s)).

  The hot water supply flow rate calculating means for calculating the flow rate of hot water supplied from the hot water supply source such as the hot water heater 30 to the water storage unit 21 by the hot water supply pipe 29a opens the hot water supply valve 29b to the water storage unit 21 from the hot water supply pipe 29a. Hot water is supplied, and the time until the cleaning water in the water storage section 21 reaches the cleaning water level L1 and the ON signal is input from the float switch 32a is measured. The hot water supply flow rate per unit time from the hot water supply pipe 29a is calculated using the time (t2) required to supply the cleaning water (6L) at the cleaning water level L1 of the water storage unit 21 (water supply flow rate (L / s ) = 6 (L) / t2 (s)).

  The drainage flow rate calculating means for calculating the flow rate of drainage discharged from the water storage unit 21 through the drainage pipe 31a by the operation of the drainage pump 31b is supplied to the water storage unit 21 up to the cleaning water level L1 in the pre-cleaning process or the main cleaning process. The drainage pump 31b is operated for a predetermined time (t3) to drain the washed water, the water supply valve 28b or the hot water supply valve 29b is opened again to supply water or hot water, and the cleaning water in the water storage section 21 becomes the cleaning water level L1. The time (t4) until the ON signal is input from the float switch 32a is measured. First, the amount of drainage is calculated by multiplying the flow rate (f) calculated by the water supply flow rate calculation means or the hot water supply flow rate calculation means by the time (t4) until the cleaning water level L1 is reached again (drainage amount D = f (L / s) × t4 (s)), the drainage flow rate when the drainage pump 31b is operated is calculated by dividing the calculated drainage amount D by the predetermined time (t3) when the drainage pump 31b is activated (drainage flow rate (L / s)) = Drainage amount D (L) / t3 (s)).

  Next, the cleaning program for the enzyme-containing detergent course of the cleaning apparatus 10 will be described. The washing program for the enzyme-containing detergent course includes a hot water disinfection process including a pre-cleaning process, a main washing process, a rinsing washing process, and a hot water disinfection process (cleaning process) in the same manner as the alkaline detergent course washing program described above. And a cleaning program that does not include a hot water disinfection process comprising a pre-cleaning process, a main cleaning process, and one or more rinse cleaning processes. In addition, in the cleaning program for enzyme-containing detergent courses, there are a normal mode cleaning program and a measurement mode cleaning program that measures the feed water flow rate, the hot water supply flow rate, and the drainage flow rate. It is executed at a rate of once. Each calculation means for calculating the water supply flow rate, the hot water supply flow rate, and the drainage flow rate is the same as described in the alkaline detergent course. In order to execute the hot water supply flow rate calculation means, when supplying the cleaning water in the main cleaning process, the hot water supply flow rate is calculated by first supplying only hot water, and then a predetermined amount of hot water is discharged before supplying the water. By doing so, you may make it the wash water of 50 degrees C or less.

  The cleaning program for enzyme-containing detergent courses is that the temperature of the cleaning water in the main cleaning process is 50 ° C. or less (the highest possible temperature of 50 ° C. or less so that the cleaning power does not decrease) as the temperature at which the enzyme contained in the detergent is not deactivated. The other cleaning processes are the same as the cleaning process of the alkaline detergent course. The main cleaning process of the cleaning program for the enzyme-containing detergent course will be described below.

  In the pre-cleaning step, the temperature sensor 22 detects the temperature of the water supplied and the water after hot water supply and the hot water, and stores it in the RAM of the controller 50. In the main cleaning process after the pre-cleaning process, as shown in FIG. 9, the controller 50 opens the hot water supply valve 29b for the cleaning tank 20 and intermittently operates the drain pump 31b in step 311. The low temperature hot water remaining in the hot water supply pipe 29a is sent to the water storage part 21 of the washing tank 20 by hot water sent from the hot water heater 30, and drained by the drain pump 31b that is operated intermittently. After the elapse of a predetermined time when there is no hot water remaining in the hot water supply pipe 29a, the control device 50 detects the temperature of the hot water sent to the water storage unit 21 by the temperature sensor 22 in step 312, and stores it in the RAM.

  In step 313, the control device 50 stops the operation of the drain pump 31 b and opens the water supply valve 28 b for a predetermined time so that the temperature of the cleaning water in the water storage unit 21 is 50 ° C. or lower while continuing the water supply. The opening time of the water supply valve 28b is calculated as follows. In step 312, the control device 50 determines the feed water flow rate calculated by the feed water flow rate calculation means described above, the hot water flow rate calculated by the hot water supply flow rate calculation means, the temperature of the cleaning water composed of water and hot water stored in the pre-cleaning step, and step 312. The temperature of the water sent from the water supply source is calculated from the stored hot water temperature. Next, the amount of water supply such that the temperature of the wash water is 50 ° C. or less is calculated from the water supply flow rate and temperature of water sent from the water supply pipe 28a and the hot water supply flow rate and temperature of hot water sent from the hot water supply pipe 29a. To do. The open time of the water supply valve 28b is obtained by dividing the calculated water supply amount by the water supply flow rate. Water passing through the water supply pipe 28a from the water supply source and hot water passing through the hot water supply pipe 29a from the water heater 30 are stored in the water storage part 21 of the washing tank 20, and the water level of the water storage part 21 gradually rises. In step 314, the control device 50 determines whether or not the cleaning water in the water storage section 21 has reached the cleaning water level L1 by detection by the float switch 32a. If the cleaning water in the water storage section 21 has reached the cleaning water level L1, "YES" is determined. And proceed to step 315. In step 215, the controller 50 closes the hot water supply valve 29b for the cleaning tank 20 and ends the hot water supply process.

  Next, as a cleaning process in the main cleaning process, the control device 50 operates the detergent supply pump 34b to supply the detergent containing the enzyme into the cleaning tank 20 in Step 316. In step 317, the control device 50 operates the cleaning pump 27 at the rated output. Accordingly, the cleaning water containing the detergent in the water storage unit 21 is pumped to the cleaning nozzles 24 and 25 via the circulation pipe 26, and the cleaning nozzles 24 and 25 spray the cleaning water onto the medical instrument while rotating. Wash. In step 318, the control device 50 determines whether or not 3 minutes have elapsed as a predetermined time since the start of cleaning, and determines “YES” when 3 minutes have elapsed as the predetermined time since the start of cleaning. Proceed to 319. In step 319, the controller 50 stops the operation of the cleaning pump 27. After the cleaning process, in step 320, the control device 50 executes a drain process of step 400 described later to drain the cleaning water of the water storage unit 21.

  In this embodiment, the time during which the hot water supply valve 29b is opened in the main cleaning process (hot water supply time) is longer than the time during which the water supply valve 28b is opened (water supply time). Was opened for a predetermined time, and the hot water supply valve 29b was closed in step 315 after the cleaning water level L1 was detected. For example, when it is necessary to make the water supply time longer than the hot water supply time when the set temperature of the water heater 30 is high, the hot water supply amount is calculated so that the temperature of the cleaning water is 50 ° C. or less, and the hot water supply valve is set in step 313. 29b may be opened for a predetermined time, and the water supply valve 28b may be closed in step 315 after the cleaning water level L1 is detected. In this way, the hot water supply so that the temperature of the washing water in the water storage unit 21 is 50 ° C. or less (the highest possible temperature of 50 ° C. or less so that the cleaning power does not decrease) as the temperature at which the enzyme contained in the detergent is not deactivated. The water supply valve 28b or the hot water supply valve 29b is closed first in accordance with the amount of water supply or hot water supply calculated in advance so that the temperature of the cleaning water is 50 ° C. or less, and then the cleaning water level L1 Then, the hot water supply valve 29b or the water supply valve 28b is closed. Thereby, after supplying hot water or water to the cleaning water level L1, it is possible to shorten the water supply and hot water supply time until the cleaning water level L1 as compared with the case where drainage and water supply or hot water are executed so as to be 50 ° C. or less. Moreover, use of excess water or hot water can be suppressed by not adding water supply or hot water supply.

  In the cleaning apparatus 10 configured as described above, when the pre-cleaning step of the cleaning program is executed, residual heat is generated in the cleaning tank 20 by the hot water cleaning water used in the hot water disinfection step of the cleaning program executed immediately before. It may remain. In this state, when the water supply valve 28b and the hot water supply valve 29b for the washing tank 20 are opened, the water and hot water of the water supply source and the water heater 30 are supplied to the water storage unit 21 through the water supply pipe 28a and the hot water supply pipe 29a. The cleaning water in the section 21 becomes 50 ° C. or more due to the residual heat in the cleaning tank 20, and blood and protein stains adhering to the medical device may solidify, and the stain may stick to the medical device. Therefore, in this cleaning apparatus 10, when the pre-cleaning process is executed, it is determined whether or not the temperature detected by the temperature sensor 22 for the cleaning tank 20 is 43 ° C. or higher as a predetermined temperature, and the temperature in the cleaning tank 20 is If the remaining heat is 43 ° C. or higher due to the remaining heat in the hot water disinfection process of the immediately preceding cleaning program, only the water supply valve 28b is opened without opening the hot water supply valve 29b, and the water storage section 21 of the cleaning tank 20 is supplied with water from the water supply source through the water supply pipe 28a. Sent out. As a result, the temperature of the washing water in the water storage section 21 of the washing tank 20 does not become higher than necessary due to the residual heat of the washing tank 20, and the blood and protein dirt adhering to the medical instrument is prevented from coagulating and sticking. be able to.

  In the above embodiment, when the temperature detected by the temperature sensor 22 in the cleaning tank 20 is 43 ° C. or higher as the predetermined temperature, only the water supply valve 28b is opened without opening the hot water supply valve 29b, and the water of the water supply source Was sent to the water storage part 21 of the washing tank 20 through the water supply pipe 28a. In this cleaning apparatus 10, the cleaning course of the cleaning program executed after the end of the cleaning program is stored in the RAM, and the temperature detected by the temperature sensor 22 in the cleaning tank 20 executed in step 201 is 43 ° C. or more as a predetermined temperature. Instead of determining whether or not there is a cleaning program executed immediately before, a hot water disinfection process (cleaning process) using a high-temperature cleaning water at a predetermined temperature (80 ° C.) or higher is used in the last cleaning process. If it is determined whether or not, and the cleaning program executed immediately before is a cleaning program that executes a hot water disinfection process (cleaning process) using hot cleaning water at a predetermined temperature (80 ° C.) or higher in the final cleaning process, Only the water supply valve 28b may be opened without opening the hot water supply valve 29b, and the water of the water supply source may be sent to the water storage unit 21 of the cleaning tank 20 through the water supply pipe 28a. Even in this case, the same effect as described above can be obtained.

  Similarly, the cleaning course of the cleaning program executed after the end of the cleaning program is stored in the RAM, and whether the temperature detected by the temperature sensor 22 in the cleaning tank 20 executed in step 201 is 43 ° C. or higher as a predetermined temperature. Instead of determining whether or not, the cleaning program executed immediately before is a cleaning program that executes a hot water disinfection process (cleaning process) using high-temperature cleaning water of a predetermined temperature (80 ° C.) or higher in the final cleaning process, It is determined whether or not 20 minutes have passed as a predetermined time since the end of this cleaning program. If 20 minutes have not passed, only the water supply valve 28b is opened without opening the hot water supply valve 29b, and the water of the water supply source is discharged. You may make it send to the water storage part 21 of the washing tank 20 through the water supply pipe | tube 28a. Even in this case, the same effect as described above can be obtained.

  These determinations are not limited to the last cleaning step being a hot water disinfection step, and the last cleaning step is a cleaning step using high-temperature cleaning water, for example, cleaning water for high-temperature rinsing water. The cleaning process used may be used. In addition, whether or not a drying process for drying an object to be cleaned such as a medical instrument by heating the inside of the cleaning tank 20 with a heater after the drainage process in the last cleaning process is performed, and a predetermined time has elapsed since the drying process was performed. Depending on whether or not, the water supply in the pre-cleaning step may be changed as described above.

  In the washing apparatus 10 described above, the set temperature of hot water in the water heater 30 of the installed building is often set to about 50 ° C to 60 ° C. If the temperature of the hot water of the water heater 30 is 50 ° C. to 60 ° C., the cleaning power of the alkaline detergent can be exerted high when the main cleaning process is started. However, depending on the installation location of the cleaning device 10, the set temperature of the hot water of the water heater 30 may be about 40 ° C. or lower. In this case, the hot water of the hot water supply device 40 can be used as the cleaning water for the main cleaning, so that the cleaning power of the alkaline detergent in the main cleaning process can be enhanced. A cleaning program for supplying hot water from the hot water supply device as cleaning water in the main cleaning step will be described with reference to the flowchart shown in FIG. Note that the flowchart shown in FIG. 10 will mainly describe differences from the above-described cleaning program using hot water of the water heater 30 as cleaning water.

  In step 211, the hot water supply valve 29b for the cleaning tank 20 is opened and the drain pump 31b is operated intermittently. The low temperature hot water remaining in the hot water supply pipe 29a is sent to the water storage part 21 of the washing tank 20 by hot water sent from the hot water heater 30, and drained by the drain pump 31b that is operated intermittently. After the elapse of a predetermined time when the hot water remaining in the hot water supply pipe 29a disappears, the control device 50 stops the operation of the drain pump 31b, closes the hot water supply valve 29b, and closes the hot water tank 41 for the hot water tank 41 in step 212A. The hot water supply valve 42a is opened. Hot water passing through the hot water supply pipe 42 is sent from the water heater 30 into the hot water tank 41, and the hot water in the hot water tank 41 overflows from the overflow pipe 46 by the supplied hot water and is supplied to the water storage unit 21. The water level rises gradually. In step 213, the control device 50 detects the temperature sensor 22 so that the cleaning water in the water storage unit 21 is 65 ° C. or higher as a predetermined set temperature at which the cleaning power using the alkaline detergent can exert a high cleaning power. It is determined whether or not the temperature is equal to or higher than the set temperature of 65 ° C. If the temperature is lower than the set temperature of 65 ° C., “NO” is determined and the process proceeds to step 214. In step 214, the controller 50 energizes the heater 23 to heat the cleaning water. Next, in Step 216, the control device 50 determines whether or not the cleaning water in the water storage section 21 has reached the cleaning water level L1 by detection by the float switch 32a. If the cleaning water in the water reservoir 21 is not at the cleaning water level L1, the control device 50 returns to step 213.

  When the cleaning water in the water storage unit 21 reaches 65 ° C. or more, which is the set temperature during hot water supply, the control device 50 determines “YES” in step 213 and proceeds to step 215, and in step 215, energizes the heater 23. Stop. When the processing of steps 213 to 216 is executed, if the water level of the cleaning water in the water storage unit 21 becomes the cleaning water level L1 and an ON signal is input from the float switch 32a, the control device 50 determines “YES”. Then, the process proceeds to step 217. In step 217, the control device 50 closes the hot water supply valve 42 a for the hot water tank 41 and ends the hot water supply process. The processing after step 218 is the same as the above-described cleaning program, and is therefore omitted.

  Thus, by supplying hot water from the hot water supply device 40 in the main cleaning step of the alkaline detergent cleaning program, it is possible to increase the cleaning power of the alkaline detergent for cleaning. In the cleaning process of the main cleaning process, the cleaning time is started when the temperature of the cleaning water reaches a set temperature of 65 ° C. or higher. The hot water supplied from the hot water supply device 40 is used for the cleaning water. Thus, the time until the temperature reached 65 ° C. could be shortened, and the cleaning time could be shortened. In the main cleaning process of the alkaline detergent cleaning program, the control for supplying hot water from the hot water supply device 40 to the water storage unit 21 is performed by operating various operation switches on the operation panel 60 when the set temperature of the hot water in the water heater 30 is low. You may make it switch by operating.

  Moreover, when the hot water of the hot water supply device 40 is used as the cleaning water in the main cleaning process, the temperature of the hot water in the hot water tank 41 is lowered. It is better to limit the amount of hot water used in the hot water tank 41 so that the hot water in the hot water tank 41 can be raised to 93 ° C. as a predetermined temperature suitable for hot water disinfection before the hot water disinfection process. A decrease in the temperature of hot water in the process can be suppressed, and an increase in cleaning time can be prevented. In this embodiment, even if 1.5 L of hot water in the hot water tank 41 storing 8.5 L of hot water is used in the main cleaning process, the hot water in the hot water tank 41 is 93 until the hot water supply process in the hot water disinfection process is performed. The temperature can be raised to ° C.

  FIG. 11 shows a flowchart of the hot water supply process in the main cleaning process when the use of hot water is restricted. In step 211, the control device 50 opens the hot water supply valve 29b for the cleaning tank 20, and intermittently operates the drain pump 31b. The low temperature hot water remaining in the hot water supply pipe 29a is sent to the water storage part 21 of the washing tank 20 by hot water sent from the hot water heater 30, and drained by the drain pump 31b that is operated intermittently. When the control device 50 stops the operation of the drainage pump 31b in step 212 after a predetermined time has passed when the hot water remaining in the hot water supply pipe 29a disappears, the hot water passing through the hot water supply pipe 29a from the hot water heater 30 is washed. The water is stored in the 20 water storage units 21, and the water level of the water storage unit 21 gradually rises. In step 212B-1, the control device 50 determines whether or not the hot water supply amount calculated from the hot water supply flow rate calculated by the supply flow rate calculating means is 4.5L, and the hot water supply amount of the water storage unit 21 is 4.5L. If not, it is determined as “NO” and the process proceeds to Step 213. As described above, in Steps 213 to 216, the controller 50 energizes the heater 23 to heat the cleaning water when the temperature is lower than the set temperature 65 ° C. until the cleaning water level L 1 is reached, and when the temperature is 65 ° C. or higher, Stop energization.

  If the hot water supply amount of the water storage unit 21 becomes 4.5 L during the hot water supply of the water storage unit 21, the control device 50 determines “YES” in Step 212B-1 and proceeds to Step 212B-2. In step 212B-2, the control device 50 determines whether or not the temperature detected by the temperature sensor 22 is 55 ° C. or higher as a predetermined temperature. If the temperature of the cleaning water in the water storage unit 21 is 55 ° C. or higher, there is no possibility that the cleaning power of the alkaline detergent is reduced, and it is not necessary to use the hot water of the hot water supply device 40 for the cleaning water. In this case, the control device 50 determines “YES” in Step 212B-2 and proceeds to Step 213.

  On the other hand, if the temperature of the wash water in the water storage unit 21 is lower than 55 ° C., the control device 50 determines “NO” in 212B-2 and proceeds to step 212B-3. In step 212 </ b> B- 3, the control device 50 closes the hot water supply valve 29 b for the cleaning tank 20 and opens the hot water supply valve 42 a for the hot water tank 41. Hot water supplied from the water heater 30 to the water storage unit 21 through the hot water pipe 29a is stopped, hot water passing through the hot water pipe 42 from the water heater 30 is sent into the hot water tank 41, and hot water in the hot water tank 41 is supplied. The water is supplied to the water storage unit 21 by overflowing from the overflow pipe 46 with hot water. Thus, when the temperature of the wash water in the water storage unit 21 is lower than 55 ° C. as the predetermined temperature, hot water is supplied from the hot water supply device 40 to a part of the wash water.

  When the water level of the water storage section 21 becomes the cleaning water level L1 due to the hot water supply from the hot water supply pipe 29a or the supply of hot water from the hot water supply device 40, an ON signal is input from the float switch 32a, the controller 50 " “YES” is determined, and the process proceeds to Step 217. In step 217, control device 50 ends hot water supply. That is, the hot water supply valve 29b is closed when the hot water of the hot water heater 30 is being sent from the hot water supply pipe 29a to the water storage unit 21, and the hot water supply valve 42a is closed when the hot water of the hot water supply device 40 is being sent to the water storage unit 21. .

  Even when implemented in this way, it is possible to obtain the effect of increasing the detergency of the alkaline detergent described above and the effect of shortening the cleaning time. Further, after the hot water supply process in the main cleaning process is completed, the hot water remaining in the hot water tank 41 can be raised to 93 ° C. as a predetermined temperature suitable for hot water disinfection before the hot water disinfection process. Since the amount of hot water to be supplied is limited, the temperature of the hot water in the hot water tank 41 can be raised to a temperature suitable for hot water disinfection before the hot water disinfection step is executed, thereby preventing an increase in cleaning time. be able to.

  In the cleaning device 10 described above, the set temperature (65 ° C.) of the cleaning water in the main cleaning process is set higher than the set temperature (50 ° C. or less) of the cleaning water in the immediately preceding pre-cleaning process. Similarly, the set temperature (80 to 83 ° C.) of the wash water in the hot water disinfection process is set higher than the set temperature (about 50 to 60 ° C.) of the wash water in the immediately preceding rinse process. In the main cleaning process or the hot water disinfection process, when the cleaning water in the water storage unit 21 is sent to the cleaning nozzles 24 and 25 through the circulation pipe and the cleaning water is sprayed from the cleaning nozzles 24 and 25 toward the medical instrument, the cleaning tank 20 The temperature inside increases rapidly, and the pressure in the cleaning tank 20 also increases rapidly. When the pressure in the cleaning tank 20 suddenly increases, the air in the cleaning tank 20 is exhausted vigorously from the exhaust port 20a, and the cleaning water sprayed from the cleaning nozzles 24 and 25 is exhausted vigorously from the exhaust port 20a. There was a risk of splashing outside the cleaning apparatus 10. When hot cleaning water splatters outside the cleaning device 10, the hot cleaning water may be applied to surrounding workers, and the surroundings of the cleaning device 10 may be contaminated by the scattered cleaning water.

  Therefore, before the cleaning pump 27 is operated at the rated output for cleaning, in the cleaning process, the cleaning pump controller 51 sets the rotation speed of the cleaning pump 27 to 50% from the rated output (maximum rotation speed in normal operation). In the hot water disinfection process, the cleaning pump control unit 51 reduces the rotational speed of the cleaning pump 27 from the rated output (maximum rotational speed in normal operation) to 20%, and then operates for 20 seconds. Reduced to 50% and operated for 40 seconds. Thereby, the temperature in the cleaning tank 20 does not rapidly increase, and a rapid increase in the pressure in the cleaning tank 20 can be suppressed. Thereby, when the cleaning program is executed, high-temperature cleaning water does not scatter from the exhaust port 20a of the cleaning tank 20 to the outside of the cleaning device 10.

  In the cleaning program of the cleaning apparatus 10 described above, the waste water treatment in each cleaning process is executed according to the flowchart shown by 400 in FIG. As shown in FIG. 12, in step 401, the control device 50 determines that the temperature of the temperature sensor 22 is 60 ° C. or higher in order to determine whether or not the wash water drained from the water storage unit 21 has a temperature suitable for drainage. It is determined whether or not. When the temperature of the cleaning water in the water storage unit 21 is lower than 60 ° C. as in the pre-cleaning process and the rinsing cleaning process, there is no possibility that the external drainage path is damaged by the heat of the cleaning water. Is determined to be “NO” in step 401, and in step 408, the drainage pump 31b is operated for 30 seconds to drain the wash water.

  On the other hand, when the cleaning water of the water storage unit 21 is at a high temperature of 60 ° C. or higher as after the cleaning processes of the main cleaning process and the hot water disinfection process are performed, the external drainage path is damaged by the heat of the cleaning water. There is a fear. If the temperature of the cleaning water in the water storage unit 21 is 60 ° C. or higher as immediately after each cleaning process in the main cleaning process and the hot water disinfection process, the control device 50 determines “YES” in step 401 and performs steps 402 to 402. At 407, drainage cooling processing is executed. In step 402, the control device 50 opens the water supply valve 28b to supply water from the water supply pipe 28a to the water storage unit 21. At this time, the water sent from the water supply pipe 28a to the cleaning tank 20 is guided to the lower part of the cleaning tank 20 through the elbow pipe 28c and the guide 28d, and the water guided to the lower part of the cleaning tank 20 is supplied to the cleaning tank 20. Due to the inclination of the lower surface toward the water storage section 21, the water slowly flows down to the water storage section 21. The water that has flowed down to the water storage unit 21 accumulates in the lower part of the water storage unit 21 due to a difference in specific gravity with hot water. As a result, the temperature of the upper portion of the wash water in the water storage section 21 is high and the temperature of the lower portion is low.

  In step 403, the control device 50 determines whether or not the cleaning water in the water storage unit 21 has reached the abnormal water level L2 by detection by the float switch 33a. If the cleaning water in the water storage unit 21 is not at the abnormal water level L2, the control device 50 returns to Step 402. When the cleaning water in the cleaning tank 20 reaches the abnormal water level L2, the control device 50 determines “YES” in step 403, and proceeds to step 404. In a state where the water supply from the water supply pipe 28a is continued, the control device 50 operates the drain pump 31b for a predetermined time in Step 404 to perform the same amount of cleaning as the amount of water added from the cleaning water level L1 to the abnormal water level L2 (2L). Let the water drain. The operation time of the drain pump 31b is calculated by dividing the added water amount (2L) by the drain flow rate calculated by the drain flow rate calculating means described later. At this time, the waste water passing through the drain pipe 31 a from the water storage unit 21 is washing water having a low temperature at the lower part of the water storage unit 21. Further, since the water supply from the water supply pipe 28a is continued while the drainage pump 31b is operated, the water supply flows to the lower part while being mixed little by little with the washing water at the upper part of the water storage part 21. The hot cleaning water at the upper part of the water storage unit 21 does not easily flow into 31a.

  After discharging the added water amount (2L) to the abnormal water level L2 by operating the drain pump 31b for a predetermined time, the control device 50 stores the water by detecting again by the float switch 33a in step 405 by continuing water supply. It is determined whether or not the cleaning water in the unit 21 has reached the abnormal water level L2. When the cleaning water in the cleaning tank 20 reaches the abnormal water level L2, the control device 50 determines “YES” in step 405, and proceeds to step 406. In step 406, the control device operates the drain pump 31b for 30 seconds while continuing the water supply. Since the water supply is continued even when the water is being drained by the drain pump 31b, the temperature of the cleaning water at the top of the water storage unit 21 is also gradually lowered. In step 264, the control device 50 closes the water supply valve 28b and ends the water supply for cooling. In this way, since the water for cooling of 4 L or more is continuously supplied without increasing the capacity of the cleaning tank 20, the remaining cleaning water is also sufficiently cooled. After this drainage cooling process, in step 408, the control device 50 operates the drainage pump 31b for 30 seconds as a drainage process to drain the cleaning water remaining in the water storage unit 21.

  As described above, in the main cleaning process, the cleaning process is performed with cleaning water of 65 ° C. or higher, and in the hot water disinfection process (cleaning process), cleaning is performed using hot water cleaning water (high temperature cleaning water) of 80 ° C. or higher. If hot cleaning water is drained as it is after hot water disinfection cleaning processing, the drainage path of the building in which the cleaning device 10 is installed may be damaged by the heat of the cleaning water. In particular, in the cleaning program of the cleaning apparatus 10, since hot water of 80 ° C. to 83 ° C. is used as the cleaning water in the final hot water disinfection process, all of the cleaning water in the water storage section 21 must be added unless a large amount of water is added. Cannot be reduced to a temperature suitable for drainage. In this cleaning apparatus 10, the amount of water when the cleaning water level L1 is suitable for cleaning the water storage unit 21 is 6L, and the abnormal water level L2 in a state where the medical instrument stored in the cleaning tank 20 is not immersed in the cleaning water. When the amount of water is 8L, the amount of water that can be added is limited to 2L. Even if 2 L of 25 ° C. water is added for cooling to 6 L of 80 ° C. cleaning water at the time of hot water disinfection cleaning treatment, the temperature of the cleaning water can only be lowered to 66 ° C. When water is drained, there is a possibility that a drain pipe made of vinyl chloride having a heat resistant temperature of about 60 ° C. may be broken as an example of a drainage path. To cope with this, the temperature of the cleaning water cannot be further lowered unless the capacity of the cleaning tank 20 is increased so that a large amount of cooling water can be received.

  Therefore, in the cleaning program of the cleaning device 10, the drainage cooling process described above is executed when the temperature of the cleaning water is 60 ° C. or more as a predetermined temperature when the drainage process is performed after the cleaning process in each cleaning process. doing. In this drainage cooling process, after the hot water disinfection cleaning process, the water supply valve 28b is opened to supply water to the water storage unit 21 from the water supply pipe 28a. The water sent from the water supply pipe 28a to the cleaning tank 20 is guided to the lower part of the cleaning tank 20 through the elbow pipe 28c and the guide 28d, and the water guided to the lower part of the cleaning tank 20 is stored in the lower surface of the cleaning tank 20. The water slowly flows down to the water storage part 21 due to the inclination toward the part 21 side. Although the water that has flowed down to the water reservoir 21 is slightly mixed with the high-temperature washing water, it accumulates in the lower portion of the water reservoir 21 due to the difference in specific gravity. As a result, the temperature of the upper portion of the wash water in the water storage section 21 is high and the temperature of the lower portion is low.

  By detecting the abnormal water level L2 with the float switch 33a, after supplying the maximum amount of 2L of water that can be added, if the drain pump 31b is operated while continuing the water supply, the low temperature wash water at the bottom of the water storage unit 21 is It is discharged to the outside through the drain pipe 31a. At this time, since the water supply is continued, the high-temperature washing water in the upper part of the water storage unit 21 is discharged without being discharged from the drain port 21a due to the momentum of the drainage water while being mixed little by little with the continuous water supply. Therefore, the high temperature washing water in the upper part of the water storage unit 21 is not directly discharged to the outside through the drain pipe 31a.

  Calculate the drainage time for draining the same amount of 2L water added for cooling from the drainage flow rate calculated by the drainage flow rate calculation means, and stop the drain pump 31b after operating the drainage time, Water supply is continued until the abnormal water level L2 is detected again by 33a. Even with this water supply, the water that has flowed down to the water storage unit 21 is slightly mixed with the high-temperature washing water, but accumulates in the lower part of the water storage unit 21 due to the difference in specific gravity. As a result, the temperature of the upper portion of the wash water in the water storage section 21 is high and the temperature of the lower portion is low. After supplying the maximum amount of 2L of water that can be added, the drain pump 31b is operated while continuing the water supply, so that the low-temperature washing water at the bottom of the water storage section 21 passes through the drain pipe 31a as described above. Then, the washing water having a high temperature at the upper part of the water storage unit 21 is discharged without being discharged from the drain port 21a by the momentum of the drainage water while being mixed little by little with the continuous water supply.

  As described above, in the cleaning program of the cleaning apparatus 10, the drainage cooling process executed in the drainage process of each cleaning process is performed by adding water for cooling to the high-temperature cleaning water and stirring them to adjust the overall temperature. Compared to when it is lowered, it is possible to drain from the low temperature wash water at the bottom of the water storage unit 21 without increasing the capacity of the wash tank 21 and gradually drain the high temperature wash water along with the continuous water supply. There is no possibility that the high temperature washing water will damage the drainage path of the building where the washing apparatus 10 is installed due to heat.

  Further, in the cleaning device 10 described above, the drain cooling process of the hot water disinfection process may be controlled as shown in the flowchart of 400A in FIG. Differences from the drainage cooling process shown in FIG. 12 will be described below. When the cleaning water in the cleaning tank 20 reaches the abnormal water level L2 due to the water supply in Step 402, the control device 50 determines “YES” in Step 403, and proceeds to Step 404A. In a state where water supply from the water supply pipe 28a is continued, the control device 50 causes the drainage pump control unit 52 to set the discharge flow rate of the drainage pump 31b to be substantially the same as the water supply flow rate from the water supply pipe 28a. It drains so that the rotation speed of 31b may be reduced from a rated output, and a drainage flow rate may be suppressed.

  By the operation of the drainage pump 31b, the washing water having a low temperature below the water storage unit 21 is discharged to the outside through the drainage pipe 31a. Since the drainage pump 31b is controlled so as to be substantially the same as the flow rate of the continuous water supply, after the low temperature wash water in the lower part of the water storage part 21 is drained, the upper part of the water storage part 21 The high-temperature washing water is discharged while being mixed little by little with the continuous water supply, and the high-temperature washing water at the upper part of the water storage section 21 is not directly discharged to the outside through the drain pipe 31a. The drainage flow rate of the drainage pump 31b is preferably the same as the feedwater flow rate from the feedwater pipe 28a, but is not limited to this, and the washing water in the water storage unit 21 may gradually decrease. In this case, even if the drainage flow rate of the drainage pump 31b is larger than the water supply flow rate by, for example, about 20%, the high-temperature washing water in the upper part of the water storage unit 21 is gradually lowered in temperature and drained. .

  In step 405A, the control device 50 determines whether or not the temperature of the cleaning water in the water storage unit 21 detected by the temperature sensor 22 has become 50 ° C. or lower. If it is 50 ° C. or lower, “YES” is determined. Determine and proceed to step 406. Note that, instead of determining the temperature of the wash water in the water storage section 21 in step 405A, the operation of the drain pump 31b may be stopped based on the operation time or the amount of drainage of the drain pump 31b. The processing in steps 406 to 407 is the same as the drainage cooling processing shown in FIG.

  Even when such drainage cooling processing is executed, drainage is performed from the low temperature wash water in the lower portion of the water storage unit 21 and the upper temperature wash water can be drained little by little along with the continuous water supply. Similarly, there is no possibility that hot washing water will damage the drainage path of the building where the washing apparatus 10 is installed due to heat.

  Moreover, in the waste water treatment of each washing process, after performing the washing treatment using the washing water, the waste water cooling treatment is executed in the waste water treatment when the temperature of the washing water is 60 ° C. or higher. As a result, in each cleaning process, when washing with hot washing water, the washing water can be reliably cooled and drained, and when washing with non-high temperature washing water, the waste water cooling process is not performed unnecessarily. And energy saving.

  In the cleaning apparatus 10 configured as described above, when the cleaning process after the hot water supply process in the main cleaning process is started, the cleaning pump 27 is heated while being heated by the heater 23 so that the cleaning water in the water storage unit 21 becomes 60 ° C. However, it is preferable not to operate the cleaning pump 27 until the cleaning water in the water storage section 21 reaches 60 ° C. When it does in this way, the temperature of the washing water of the water storage part 21 can be raised quickly. Further, when the cleaning process of the main cleaning process is started and the cleaning pump 27 is not operated until the cleaning water in the water storage section 21 reaches 60 ° C., the display 61 on the operation panel 60 is in operation. By displaying, it is possible to recognize that the user has not failed.

  In said embodiment, although the medical instrument was demonstrated as a to-be-cleaned apparatus, this invention is not limited to this, You may wash | clean instruments, such as tableware.

  In the above-described embodiment, conditions such as various temperatures (including set temperature) such as cleaning water are described as examples, and are not limited to these temperatures.

  DESCRIPTION OF SYMBOLS 10 ... Cleaning apparatus, 20 ... Cleaning tank, 21 ... Water storage part, 22 ... Temperature sensor, 24, 25 ... Cleaning nozzle, 27 ... Cleaning pump, 28 ... Water supply means, 29 ... Hot water supply means, 32a ... Water level sensor (float switch) 34 ... Detergent supply device, 40 ... Hot water supply device, 41 ... Tank (hot water tank), 44 ... Heater, 50 ... Control device, 51 ... Cleaning pump control unit, 52 ... Drain pump control unit.

Claims (2)

A cleaning tank having a water storage section for storing the object to be cleaned and storing cleaning water at the bottom;
A temperature sensor provided in the cleaning tank;
Cleaning water supply means for supplying cleaning water to the water reservoir;
A cleaning nozzle that ejects cleaning water of the water storage section onto an object to be cleaned contained in the cleaning tank;
A cleaning pump for sending the cleaning water of the water reservoir to the cleaning nozzle;
A control device having a cleaning program for executing a cleaning process for injecting the cleaning water supplied from the cleaning water supply means from the cleaning nozzle to the object to be cleaned by the cleaning pump a plurality of times;
The cleaning water supply means has water supply means for supplying cleaning water supplied from a water supply source to the water storage section, and hot water supply means for supplying hot water cleaning water supplied from a hot water supply source to the water storage section. In the cleaning device
When the first cleaning step of the cleaning program is a pre-cleaning step of cleaning using cleaning water having a predetermined temperature or less consisting of water and hot water supplied from the water supply means and the hot water supply means,
If the temperature detected by the temperature sensor before starting the cleaning water supply process in the pre-cleaning step is equal to or higher than a predetermined temperature, the pre-cleaning step does not supply hot water by the hot water supply unit, and water is washed from the water supply unit. A cleaning device controlled to supply only water. A cleaning tank having a water storage section for storing the object to be cleaned and storing cleaning water at the bottom;
Cleaning water supply means for supplying cleaning water to the water reservoir;
A cleaning nozzle that ejects cleaning water of the water storage section onto an object to be cleaned contained in the cleaning tank;
A cleaning pump for sending the cleaning water of the water reservoir to the cleaning nozzle;
A control device having a cleaning program for executing a cleaning process for injecting the cleaning water supplied from the cleaning water supply means from the cleaning nozzle to the object to be cleaned by the cleaning pump a plurality of times;
The cleaning supply means has water supply means for supplying cleaning water supplied from a water supply source to the water storage section, and hot water supply means for supplying hot water cleaning water supplied from a hot water supply source to the water storage section. In the cleaning device,
When the first cleaning step of the cleaning program is a pre-cleaning step of cleaning using cleaning water having a predetermined temperature or less consisting of water and hot water supplied from the water supply means and the hot water supply means,
If the last cleaning step of the cleaning program executed immediately before is a cleaning step that uses high-temperature cleaning water of a predetermined temperature or higher, and the cleaning step is within a predetermined time after the completion of the cleaning step, the pre-cleaning step The cleaning apparatus is controlled to supply only the washing water of water from the water supply means without supplying hot water by the hot water supply means when performing the operation.

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