JPS58198633A - Device for maintenance and management of air-conditioning equipment - Google Patents

Abstract

PURPOSE:To enable to deal with a trouble immediately upon stopping due to the trouble by a method wherein the detected values of the operating conditions of the equipment are memorized into a micro-computer with a given time interval and are indicated on an indicating board upon the rouble which is caused in the equipment. CONSTITUTION:A indicating board 1 is connected to a micro-computer 2. An integrated electric power detector 3, a current detector 4, a motor operating hours detector 5, a motor surface temperature detector 6, a refrigerant pressure detector 7, a dust removing filter differential pressure detector 8, a cooling water inlet temperature detector 9, a cooling water outlet temperature detector 10, a blowing air temperature detector 11, a suction air temperature detector 12, a water leakage detector 13 and a timer 14 are connected to the micro-computer 2. The outputs of respective detectors are memorized into the micro-computer 2 with a given time intervals and when a trouble is caused in the equipment, the detected values of respective detectors immediately before or upon troubling of the troubled equipment are indicated on the indicating board.

Description

[Detailed description of the invention] It is something.

Conventional devices of this type detect current and refrigerant pressure.

When an abnormality occurred, the operation panel qualitatively indicated, for example, high pressure stop, low pressure stop, etc., using a lap. However, such a configuration has drawbacks as shown in dC below.

(1) Just by qualitatively indicating high pressure stop, low pressure stop, etc. with a lamp on the operation panel, the true cause of high pressure stop, low pressure stop, etc. cannot be determined, and it takes time to determine the true cause. Therefore, damage due to equipment stoppage increases.

(2) In areas where maintenance personnel are not available, equipment failures are common because corrective maintenance is difficult.

Unmanned driving is not possible.

(4) It is not possible to determine whether or not the accident is caused by the use of consumable parts of the equipment beyond their service life. Furthermore, it is not possible to detect that the life is nearing the end and take preventive measures.

The object of the present invention is to overcome the drawbacks of the prior art.

An object of the present invention is to provide a maintenance management device for air conditioning equipment that can immediately discover the true cause of failure and perform preliminary maintenance, and can also perform unmanned operation.

The present invention stores detected values of the operating status of equipment in a microcomputer and outputs the status when the equipment is stopped on a display board,
Furthermore, the microcomputer stores the lifespan of equipment consumables and compares it with the detected operating time of the equipment to issue an alarm.

FIG. 1 shows a system diagram of an embodiment of the maintenance management device for air conditioning equipment according to the present invention. A display board 1 is connected to a microcomputer 2. Integrated power detector as a detector3. Current detector4. Motor operating time Inlet temperature detector9. Cooling water outlet temperature sensor 10°Blow air temperature sensor 11. A suction air temperature detector 12, a water leak detector 13, and a timer 14 are connected to the microcomputer 2 via an instrumentation cord 15. The timer 14 is operated by the microcomputer 2 unattended.
command the operating period.

The detection values detected by each detector are stored in the microcomputer 2 at regular time intervals. 2 when the equipment breaks down
When a person inputs information about equipment failure into the microcomputer 2, the 1 display board 1 displays.

The values stored by the microcomputer 2 are displayed, which are the detection values detected by each detector at or just before a failure occurs in the equipment.

The mata microcomputer 2 stores the life time of each device component. For example, the lifespan of a dust removal filter6
000 hours, ball bearing life 6000 hours,■
A belt lifespan of 10,000 hours or the like is stored, and a ratio of the operating time measured by the motor operating time detector 5, for example, is calculated by 1 to this life time, and when a certain value is reached, an alarm is issued.

This invention detects the operating status of each device in air conditioning equipment, stores the detected values in a microcomputer at regular time intervals, and allows a person to display this on a display board when one device malfunctions. The situation at the time of a breakdown or stoppage can be immediately identified and countermeasures can be taken, and even if there is no full-time maintenance staff, all you need to do is notify the maintenance company of the stoppage situation. In addition, the lifespan of equipment parts is stored in the microcomputer in advance, and this is compared with the detected value of the operating time of each equipment, and if a certain value is reached, an alarm is issued in advance. Even without maintenance personnel, you can know when to replace consumables and perform preventive maintenance, which reduces equipment breakdowns. In addition, the timer commands the operating period of the microcomputer, allowing unmanned operation.

[Brief explanation of drawings]

FIG. 1 shows a system diagram of an embodiment of the present invention. 1... Display board 2... Microcomputer 3... Integrated power detector 4... Current detector 5... Motor surface temperature detector 6... Motor surface temperature detector 7... Refrigerant pressure Detector 8... Filter differential pressure detector 9... Cooling water inlet temperature detector 10
...Cooling water outlet temperature detector 1 l...Blowout air temperature sensor 12...Suction air temperature sensor 13...Water leakage detector 14...Timer 15...Instrumentation code.

Claims (1)

[Claims] 1. Connect the device detection unit and the microcomputer via an instrumentation cord, and store the detected values of the operating status of the device in the microcomputer at regular intervals. 1. When a device failure is input to the computer, the device detection will be displayed on the display board. It is characterized by having the function of outputting the detected values of the parts, and storing the lifespan of the consumable parts of the equipment in advance in a microcomputer, comparing it with the detected values of the operating hours of the nine equipment, calculating it, and issuing an alarm. Maintenance management device for air conditioning equipment.