JPH06100399B2 - Operation recording device for drive equipment for absorption refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a heating device, an absorption liquid pump, and a refrigerant used in an absorption refrigerator, an absorption heat pump, an absorption chiller-heater or the like (hereinafter referred to as an absorption refrigerator). The present invention relates to a device for automatically recording the number of times of operation and the time of operation of a liquid pump, an extraction pump, and other driving equipment.

(B) Prior art Absorption refrigerators include heating devices (combustion devices such as burners and fuel control valves or flow control valves for heat source steam), pumps (pumps for absorbing liquid, extraction pumps for non-condensable gases, etc.) It is generally known that the drive device of the above is used.
It is also known that the performance of these drive devices gradually deteriorates depending on the frequency of use (start / stop frequency) and operating time.

Then, in order to grasp the degree of performance deterioration of each of these drive devices, conventionally, these operation checks (for example, once a month), visual inspection of these, or overhaul of the pump (for example, once a year) is performed. Disassembly inspection)
Regular inspections are carried out to perform such things as [(corporation incorporated association) published by the Japan Refrigeration and Air Conditioning Industry Association (first edition revised in February 1982) "Correct operation method of gas absorption chiller / heater / absorption chiller", page 55- See page 58].

(C) Problems to be solved by the invention In the conventional inspection as described above, the same periodic inspection is performed regardless of whether the absorption refrigerator is used frequently or not, so in the former case, the inspection period is long. However, there is a problem in that the drive device is likely to fail during this period, while in the latter case, it takes too much time.

Therefore, there is also a method of individually selecting the inspection period by manually recording the usage time and the usage frequency of the absorption refrigerator, but this method has a problem that it takes too much time for the operation manager. In addition, the absorption refrigerator has a crystal of absorption liquid, freezing of cold water, a protective device for preventing overheating of the generator, and a capacity control device for obtaining cold / hot water commensurate with the load,
These devices work during the operation of the absorption refrigerator, and automatically control the start / stop and operation of the heating device of the generator, the absorbing liquid pump and other driving devices. Therefore, it is practically impossible to accurately record the number of times of starting and stopping and the operating time of each of the driving devices during the operation of the absorption refrigerator, which is practically impossible.

In view of such a problem, the present invention automatically accumulates and records the number of times of starting and stopping and the operating time of a drive device for an absorption refrigerating machine in place of human hands, and records them in a table or a graph that is easy for humans to understand. The purpose of the present invention is to provide a device that can be taken out as data.

(D) Means for Solving the Problems The present invention has been made to solve the above problems, and outputs a signal for instructing the start and stop of each of the absorption refrigerator driving devices, and this signal A central processing unit (CPU) that integrates the number of times of operation of each of the drive devices based on the above, and a cumulative operation time thereof, and a data storage element (RAM) that stores the data integrated by the central processing unit. , A data display (printer) (PR) that displays or prints out the data stored in the data storage device in the form of a table or graph, and controls the operation of the drive device based on a signal from the central processing unit. And a control device for absorption refrigerating machine (D / O / C), wherein the central processing unit, the drive device and the data display are connected via an interface. There is provided an operation recording device for absorption refrigerating machine driving device that.

(E) Action In the device of the present invention, since the central processing unit, the driving device and the data display are connected through the interface, the start and stop of the driving device controlled by the control device is controlled by the central processing unit. It exerts the function of automatically issuing commands and recognizing instead of human hands. further,
The central processing unit has a function of accumulating the number of times of driving (number of times of starting and stopping) and the operating time of the driving device and storing these as data in a data storage element. In addition, since the device of the present invention connects the data display and the data recording element through the interface, it exerts the function of outputting these data into a table or graph that is easy for humans to understand.

With the above-described function of the device of the present invention, it becomes easy to estimate the degree of performance deterioration of the driving device almost accurately,
This allows proper maintenance and inspection of these devices.

(F) Embodiment FIG. 1 is a schematic configuration explanatory view showing an embodiment of an operation recording device for a drive device for an absorption refrigerator according to the present invention. In FIG. 1, (A) is an absorption refrigerator, and this absorption refrigerator is
High temperature generator (1), low temperature generator (2), condenser (3),
Evaporator (4), absorber (5), cold and hot solution heat exchanger (6), hot solution heat exchanger (7), pump for refrigerant liquid (P _R ) and pump for absorption liquid (P _A ) The pipelines (8) and (9) through which the refrigerant flows, the pipeline (10) through which the refrigerant liquid flows down, the pipelines (11) and (12) through which the refrigerant liquid flows back, and the pipeline (13) through which the absorption liquid is sent, By connecting (14), (15), (16) and the pipes (17), (18), (19), (20) through which the absorbent flows, the same refrigerant [water] as the conventional absorption refrigerator. And the absorption liquid [aqueous solution of lithium bromide]. (2
1) is the combustion heating chamber of the high temperature generator (1), (22), (22)
... is a heating pipe through which combustion gas flows, (23) is a flue for combustion exhaust gas, (24) is a low temperature generator (2) heater, (25),
(26) is a cooler for the condenser (3) and the absorber (5), and (27) is a heat exchanger built in the evaporator (4). (28) in the fuel supply passage for guiding the fuel high-temperature generator combustion heating chamber (1) to (21), the fuel supply passage are provided with flow control valve (V _F) is. (29), (30), (31) are cooling water pipes in which coolers (26), (25) are connected in series,
Reference numerals (32) and (33) are pipes for cold water or hot water which connect the heat exchanger (27) and the load side heat exchange unit (not shown). When multiple load side heat exchange units are installed,
Pipe lines (32) and (33) serve as mother pipes. Further, (34) is a pipe line connecting the body of the evaporator (4) and the absorber (5) and the pipe line (8), and this pipe line is provided with a cold / hot switching valve (V ₁ ). . Moreover, (35) is a pipe line connecting the discharge side pipe line (14) of the pump (P _A ) and the liquid reservoir of the evaporator (4), (3
6) is a pipe that connects the pipe (17) and the lower part of the absorber (5), and these pipes (35) and (36) are also provided with cold / hot switching valves (V ₂ ) and (V ₃ ), respectively. It is prepared. When the cold water supply to the load side heat exchange unit is switched to the hot water supply, the high temperature generator (1) is switched by switching the cold temperature switching valves (V ₁ ), (V ₂ ) and (V ₃ ) from closed to open. ) To the evaporator (4) to heat the water in the heat exchanger (27) by the latent heat of condensation of the refrigerant vapor in the heat exchanger (27), The boiling temperature is reduced and the thermal efficiency of the high temperature generator (1) is increased. In addition,
(P _G ) is a non-condensable gas extraction pump, and (37) is a refrigerant blow conduit with a valve (V _B ). Again,
(B) is a burner, (P _W ) is a cold / hot water pump, and (P _C ) is a cooling water pump.

(S _GT ) is a solution temperature detection sensor provided on the outer wall of the high temperature generator (1), (S _GP ) is a vapor pressure detection sensor provided in the gas phase part of the high temperature generator (1), (S _GL ) Is a sensor for liquid level detection provided on the upper side of the high temperature generator (1), (S _WT ).
Is a sensor for detecting the temperature of cold water [warm water] provided on the wall of the pipe (33), (S _WF ) is a sensor for detecting the flow of cold water [hot water] provided in the pipe (33), and (S _RT ) is the evaporator (4) Is a sensor for detecting the temperature of the refrigerant liquid provided on the side wall of the bottom of the. Further, (S _AP ) is a pressure detecting sensor provided in the absorber (5).

(D / D / C) is a control unit as an operation control panel of the absorption refrigerator (A). The control unit includes a central processing unit (CPU), an input interface (I / F _S ), and (I / F _S ). / F _KB ),
Output interface (I / F _L.PR ), (I / F _{O / C} ) and other computer parts are built in.

(LCD) is an alarm, (PR) is a printer, and (KB) is a keyboard.

And the above sensors (S _GT ), (S _GP ), (S _GL ), (S _WT ), (S _WF ),
(S _RT ), (S _AP ), and the control unit ( _DO ) of the absorption refrigerator (A)
C), an alarm (LCD), a printer (PR), and a keyboard (KB) are electrically connected (or connected together using an optical communication cable) to form an operation recording device for an absorption refrigerator. is doing.

Although not shown in FIG. 1, the control unit (D / O /
C) also receives signals from sensors other than the above sensors, and these signals are accessed between the sensor, central processing unit (CPU), printer (PR), and other computer parts The changes in the physical quantities sensed by the printer are printed out as operating data on a printer (PR).

Furthermore, the control unit (D / O / C) of the absorption refrigerator (A)
Is the same as the conventional one, the fuel control valve (V _F ) opening adjustment, pump (P _R ), (P _A ), (P _W ), (P _C ), (P _G ) discharge amount adjustment And start / stop, start / stop of burner (B), cold / hot switching valve (V ₁ ), (V ₂ ),
It is designed to open and close (V ₃ ).

FIG. 2 is a block diagram of the operation recording device shown in FIG. In FIG. 2, the control unit (D, O, C) of the absorption refrigerator (A) has an input interface (I / F _S ) for receiving an analog signal from a sensor, a keyboard (K
Input interface (I / F _KB ) that receives digital signal from B), output interface (I / F _KB ) that outputs digital signal to alarm (LCD) and printer (PR)
F _L.PR ), output interface (I / F _OC ) that issues digital or analog control signals to valves and pumps, read only memory (ROM), random access memory (RAM), clock (CLOCK) Is built in. A keyboard (KB), a printer (PR), and a notification device (LCD) may be built in the control unit (D / O / C).

Then, by operating the keyboard (KB) and accessing signals between the input interface (I / F _KB ), the central processing unit (CPU) and the read only memory (ROM), the pump (P _R ) _{, (P a), (P} W), it is stored (P _C) and the extraction pump (P _G) and advance the respective start-stop condition of the driving device such as a burner (B) in the random access memory (RAM) , And the central processing unit (CP) from the sensor via the input interface (I / F _S ).
U), when any of the signals coming into the unit meets the start / stop conditions, this signal is sent to the central processing unit (CPU),
By accessing between read only memory (ROM) and random access memory (RAM),
The access signal at the time when the start / stop condition is met is stored in the random access memory (RAM) as operation command information [set], and this signal is output to the start / stop condition via the interface (I / F _OC ). The control unit (D / O / C) has a function of transmitting the matched drive device and instructing the start / stop of the drive device. In other words, the control unit (DO
C) has a function of recognizing which of the driving devices starts and stops.

Moreover, the control unit (D / O / C) sets a signal that matches the start / stop condition in the random access memory (RAM) as described above, and further, the central processing unit (CPU) and the clock ( CLOCK) to access signals while counting the time from the operation start to the operation stop of the driving equipment that matches the starting and stopping conditions and calculate the operating time for each starting and stopping of this driving equipment and The number of starts and stops is added up and stored in random access memory (RAM) as data. Then, the control unit (D / O / C) inputs a signal from a stop switch (not shown) for the absorption refrigerator (A) provided therein or an operation signal of a keyboard (KB) as an input interface (I / F). When this signal is received via _KB ), this signal is accessed between the central processing unit (CPU), read only memory (ROM), random access memory (RAM), and random access memory (RAM). The data stored in the table is converted into a table or graph, and a signal for printing out by the printer (PR) is _sent to the printer (PR) via the output interface (IF _L.PR ).

In addition, the random access memory (RAM) can be operated by the keyboard (KB) to operate the pump (P _R ), (P _A ), (P _W ),
(P _C ), (P _G ) set operation time that requires disassembly and inspection, bleeding pump (P _G ) oil replacement set operation time, burner (B) The time is stored in advance. The control unit (D / O / C) is a random access memory (RA
(P _R ), (P _A ), (P _W ), (P
_C ), (P _G ), burner (B) and other driving equipment's accumulated operating time and random access memory (RAM)
The magnitude of the preset operating time stored in advance is compared by accessing the signal between the central processing unit (CPU), read only memory (ROM), and random access memory (RAM). In addition, when one of the accumulated operating times exceeds the set operating time, the alarm (LCD) indicates that the driving equipment that has reached that size needs to be disassembled, oil replaced, or maintenance checked. The signal to _activate is output to the annunciator (LCD) via the output interface (I / F _L.PR ).

Next, an operation example of the operation recording device (hereinafter referred to as the present device) of the drive device for the absorption chiller configured as described above will be described with reference to the flow chart of the program shown in FIGS. 3 to 4. . These programs are read-only memory (ROM) of the control unit (D / O / C).
I remember it.

In the following description, the input interface (I / F _S ) that receives the analog signal from the sensor, the input interface (I / F KB) that receives the digital signal from the keyboard ( _KB ), and the alarm (LCD) Output interface (I / F _L.PR ) that transmits digital signals to the printer (PR),
Output interface (I / F _OC ) that transmits digital or analog control signals to valves, pumps, burners, etc., central processing unit (CPU), read only memory (ROM), random access memory (RAM),
Set the clock (CLOCK) and alarm (LCD) to (I /
F _S ), (I / F _KB ), (I / F _L.PR ), (I / F _OC ), (CP
Described as (U), (ROM), (RAM), (CLOCK) and (LCD).

Further, the absorption refrigerating machine (A) control unit (D.
O / C) (RAM) has installation values of various physical quantities that are the start / stop conditions of each drive device [for example, the lower limit of the cold water temperature in the pipe (33) that is the stop condition of the burner (B)]. Value, the conduit (3
3) the cold water temperature setpoint, the high temperature generator is the stop condition of the absorbent pump (P _A) (1) the upper liquid level, the high-temperature generator is the stop condition of the burner (B) (1) The lower limit liquid level, the re-start condition of the absorbing pump (P _A ) and the burner (B), which are the set liquid level in the high temperature generator (1), and the start condition of the extraction pump (P _G ). absorber (5) in the upper limit pressure, and to store the timer setting time, etc.] is re-stop condition of the bleed pump (P _G). In addition, for the above (D ・ O ・ C), the set operating time (eg 10,000 hours) that requires disassembly and inspection of the pump for absorbing liquid (P _A ), the pump for refrigerant liquid (P _R ) and other pumps pump (P _G) of oil change setting operation time required [for example, 20 hours], thereby stores a burner (B) of the maintenance setting operation time required [for example, 5,000 hours].

FIG. 3 is a flow chart showing an example of the operation command operation by the present device for the absorption liquid pump which is one of the drive devices for the absorption refrigerator.

The control unit (D.O.C) of the present apparatus first performs an operation of a stage of determining whether or not the absorption refrigerator (A) is in operation. This determination is made, for example, based on whether or not the ON signal of the operation switch or the dilution operation switch of the absorbing liquid is input to the control unit (D / O / C). If the ON signal is input, the determination of the stage becomes YES, and the process moves to the stage.
In the stage operation, it is determined whether the liquid level in the high temperature generator (1) detected by the sensor (S _GL ) is equal to or higher than the upper limit set value. If this judgment is ON, the operation moves to the stage. In the stage operation, it is determined whether the liquid level in the high temperature generator (1) detected by the sensor (S _GL ) is less than the set value. If this judgment is YES, the operation moves to the stage where the command information for turning on the pump for absorbing liquid (P _A ) is set in (RAM), and the command signal for turning on the pump for absorbing liquid (P _A ) is After shifting to the stage operation transmitted to the pump, the stage returns to the stage operation again. In this way, the operation of the absorption liquid pump (P _A ) is continued while repeating the operations of the steps.

On the other hand, if the absorption refrigerator (A) is stopped,
If NO, the command signals will be absorbed fluid pump (P _A) operation of the step of resetting [de] command information of ON to (RAM) is carried out, the absorbing liquid pump (P _A) OFF The operation of transmitting to the pump is performed. That is, the operation of the absorption liquid pump (P _A) is stopped.

In addition, when the absorption refrigerating machine (A) is in operation, when the judgment operation at the stage is YES, that is, when the liquid level in the high temperature generator (1) is above the upper limit set value, go to (RAM). The operation of the step of resetting the command information for turning on the absorption liquid pump (P _A ) is performed [the memory of the absorption liquid pump ON is lost], and the output interface from the control unit (D ・ O ・ C). Pump for absorption liquid (P _A ) via (I / F _OC )
The OFF command signal is transmitted to the navel, and the operation of this pump is stopped. When the absorbent pump (P _A ) stops, the supply of the rare absorbent to the high temperature generator (1) is cut off.
The liquid level in this generator begins to fall. Then, when the liquid level in the high temperature generator (1) falls below the upper limit set value, the judgment operation of the stage becomes NO judgment, and the process moves to the judgment operation of the stage. At the time of shifting to this operation, if the liquid level in the high temperature generator (1) is less than the upper limit setting and is equal to or more than the set value, the determination of the stage becomes NO, the stage operation is performed, and the pump for absorbing liquid is performed. The stopped state of (P _A ) continues. Then, if the liquid level in the high temperature generator (1) further drops below the set value, the judgment of the stage becomes YES, and the command information for turning on the pump for absorbing liquid is set in (RAM) [store]. After returning to the step operation, the absorption liquid pump (P _A ) is restarted. In this way, this device issues a command to start and stop the absorbing liquid pump (P _A ) while receiving the signal from the liquid level detection sensor (S _GL ) and sets this command signal as information in (RAM) [ [Remember].

It should be noted that the start / stop command of the absorbing liquid pump (P _A ) is a signal from a sensor other than the liquid level detecting sensor (S _GL ), for example, a pressure detecting sensor (S _GP ), a temperature detecting sensor (S _GT ), (S _WT )
Of course, the start / stop command of the burner (B) is also issued while receiving these signals. In addition, while receiving signals from the sensor for detecting the temperature of the refrigerant liquid (S _RT ), the sensor for detecting the flow rate of cold water (S _WF ), the sensor for detecting the pressure in the absorber (5 _AP ), etc. it is of course that the present apparatus performs a start-stop instruction of the refrigerant fluid pump (P _R) and hot and cold water pump (P _W) and extraction pump (P _G).

FIG. 4 is a flow chart showing an example of the operation of accumulating the number of times of operation (the number of times of starting and stopping) and the operation time of the absorbent pump by this device.

In this integration operation, to be stored in each excisional zero (RAM) the operating frequency N and the operating time T of the absorbent pump (P _A) by, for example, a keyboard when installing the absorption refrigerating machine (A) (KB) The operations of <1> and <2> stages are first performed. It should be noted that this memory is set in a portion of the (RAM) area that is backed up by a battery (hereinafter referred to as a back up area). Then, another to the part absorbing liquid pump (P _A) command information of ON is determined whether the stored [see the operation stage of FIG. 3] <3> phase of operation of the area (RAM) Is performed. If the determination at the <3> stage is NO, the operation at this stage is repeated. On the contrary, in the case of YES, the operation goes to the step <4>. In the operation of the <4> stage, the (CPU) adds 1 to the operation number N [N = 0] and stores this [N = N + 1] as new information in the backup area of the (RAM). That is, the information that the operation number 1 of the absorbent pump in (RAM) (P _A) is recorded as data. Then, the (CPU) performs the operation of <5> stage for counting the time for one second, and then performs the operation of <6> stage.
In the <6> stage operation, the (CPU) adds 1 to the operating time T [T = 0] of the absorption liquid pump (P _A )
= T + 1 = 0 + 1] as new information in the backup area of (RAM). That is, the information that the operation time for one second of the absorbent pump in (RAM) (P _A) is recorded as data. After the operation of <6> stage,
Command information of the absorbing liquid pump (P _A) ON operation determines whether it is stored in the (RAM) [<7> phase of operation] is performed. If the determination at the <7> stage is YES, the operation moves to the <5> stage again, the operations at the <5> to <7> stages are repeated, and the storage of the backup area in (RAM) is T =
Can be sequentially rewritten as 1, 2, 3, .... That is,
When the absorbent pump (P _A ) continues to operate, its operating time is recorded as data in (RAM). On the other hand, when the judgment at the <7> stage is NO [the command information for turning on the pump (P _A ) for absorbing liquid is erased from the memory (RAM) and the command for turning off the pump (P _A ) is transmitted <Fig. 3> of,
When the operation of the absorption liquid pump (P _A ) is stopped by referring to the operation of the stage>], the operation returns to the determination operation of the <3> stage.

Then, the command information of the absorbing liquid pump (P _A) ON re technique (RA
M), in other words, when the pump (P _A ) ON command is sent and the pump (P _A ) restarts, <3>
The judgment of the stage becomes YES, and the operation moves to the stage <4> again. In the operation of the <4> stage at this time, since the information of N = 1 is already stored in the backup area of (RAM), the (CPU) adds 1 to this N [N = 1] and [N = N + 1 = 1 + 1 = 2] is stored as new information in the backup area of (RAM). That is, the information that the number of times the absorbent pump (P _A ) has been operated is 2 is recorded as data in (RAM).
After that, the operations of <5>, <6>, and <7> steps are performed in the same manner as the previous time, and the operation time of the second operation of the absorbent pump (P _A ) is added to that of the first operation ( RAM)
This is stored as new information in the backup area and the total operating time is recorded as data in (RAM). Then, the operation of <3> to <7> is repeated every time the absorption liquid pump (P _A ) starts and stops, and N in the operation of <4> is sequentially rewritten to 1, 2, 3 ... Pump for absorption liquid (P _A ) in the backup area of RAM (RAM)
Is recorded as data on the number of times of driving.

In this way, the absorbing liquid pump absorption liquid pump (P _A) of the total operating time is accumulated the device with starting and stopping the operating frequency for each of (P _A) is recorded in the device Will be recorded in. In addition, this apparatus also records the number of times of operation of the refrigerant liquid pump (P _R ) and other pumps and the operation time in the same manner. [For example, in the case of the pump for the refrigerant liquid, the pump for the absorbing liquid in the flow chart in FIG. 4 may be rewritten as the pump for the refrigerant liquid. ].

Then, the number of times the pump has been operated and the operating time recorded in this device are appropriately recorded as data in the printer by a signal from the operation switch (not shown) of the absorption refrigerator (A) or an interrupt signal from the keyboard (KB). Printed out from (PR). FIG. 5 is a chart showing an example of printed data. In the data example shown in FIG. 5, the absorption refrigerator (A) is 8 of September 20, 1985.
Operating from 9 o'clock to 17 o'clock for 9 hours, during which the absorption liquid pump (P _A ), refrigerant liquid pump (P _R ), burner (B), bleed air pump (P _G ) respectively ], Operating time 15 times, 8 hours 21 minutes, 8 times, 7 hours 26 minutes, 10 times,
It shows that it was 8 hours 5 minutes, 1 time, 1 hour 12 minutes. The number of times the fuel control valve (V _F ) and other valves are opened and closed is also displayed [not shown] on this chart.

A calendar timer circuit (not shown) is built in the control section (D / O / C) of this apparatus, and the date and time are also recorded as data in the backup area of (RAM). There is.

FIG. 6 is a flow chart showing an example of an informing operation by the present device of disassembly and inspection timing of the absorbent pump.

In this notification operation, as in the flow chart shown in FIG. 4, the cumulative operating time t of the absorbent pump (P _A ) is set to zero by the keyboard (KB), and another backup area in (RAM) is set. To memorize Is performed first, and then, similarly to the repetitive operation of steps <5> to <7> of the slow chart shown in FIG. 4, The accumulated operation time t of the absorption liquid pump (P _A ) is incremented by one second while repeating the above operation, and is sequentially stored in (RAM) as new information. Then, the total integrated operating time t is set to the preset operating time (10,
000 hours), The judgment operation of becomes a judgment of YES, Move to the operation of.

In the operation of, the control unit (D ・ O ・ C) issues a signal to the printer (PR) via the output interface (I / F _L.PR ), and this printer disassembles the absorption liquid pump (P _A ). A message stating that inspection is required is printed out.
FIG. 7 is a chart showing a display example of a printed message. When a message is displayed by a printer (PR), the above signal from the control unit (D ・ O ・ C) is also sent to an annunciator (LCD) so that the annunciator blinks or a sound is emitted from the annunciator. It is preferable to draw attention such as giving a notice. Also, instead of printing out the message with a printer (PR), a liquid crystal display or LE
You may make it notify by a blinking display by an alarm device (LCD) made by D. In this way, convey the message After the above operation is performed, the cumulative operating time t of the absorbent pump (P _A ) is reset to zero by operating the keyboard (KB) again and stored in the RAM. Is performed, Is returned to the action of. Note that when the Metsuseji is printed out, it is of course the overhaul of the absorbent pump (P _A) is made.

In addition, this device is the same at the time of disassembling and inspecting the refrigerant liquid pump (P _R ) and other pumps [for example, in the case of a refrigerant liquid pump, this should be read as the absorption liquid pump in the flow chart in FIG. 6]. You can do it. ], And the printer (P _R ) also indicates the maintenance and inspection time of the burner (B) and the oil change time of the extraction pump (P _G ).
Can be sent to the driving manager as a message via.

FIG. 8 is a flow chart showing an example of the start / stop command [operation command] operation by this device for the extraction pump which is one of the drive devices for the absorption chiller, and FIG. 9 shows the start / stop number [operation number] of the extraction pump. FIG. 10 is a flow chart showing an example of the operation of accumulating the operating time by this device, FIG. 10 is a flow chart showing an example of the operation of notifying the oil change time of the extraction pump by this device, and FIG. 11 and FIG. It is a chart showing a display example of a message to the effect that it is necessary to change the oil of the bleeding pump by an alarm of the device and a printer.

In the command operation in the flow chart of FIG.
Regardless of whether or not the absorption refrigerator (A) is in operation, the control unit (D / O / C) of this device first receives the signal from the pressure detection sensor ( _SAP ) and then the absorber. The pressure in (5) is the upper limit set value stored in (RAM) in advance (for example, 12 mmH
g) Perform the i-stage operation to determine whether or not the above. Determination of the absorber (5) when the internal pressure is equal to or greater than the upper limit set value i stage is carried out in YES, that excisional command information extraction pump (P _G) ON to (RAM) [stores] ii phase of operation further extraction pump (P _G) outputs a command signal for oN Interferon chair (I / F _OC) this pump operation iii stage tell bleed pump (P _G) is performed via begins to operate. Next, the control unit (D ・ O ・ C) is (CPU), (R
OM), (RAM), (after performing the operation of iv step of counting a 1 hour period while the access signal between CLOCK), (bleed pump which has been stored in the RAM) (P _G) of ON Performs v-stage operation to reset the command information,
Further, an operation of vi stage conveying command signal extraction pump (P _G) OFF to the pump. That is, the bleed pump (P _G) after being operated for one hour, it being stopped.
In the i-stage determination operation, when the pressure in the absorber (5) is less than the upper limit set value, the i-stage determination is NO.
Next, v phase and vi phase of operation is performed by extraction pump (P _G) will remain suspended. Then, the operation of vi stage [bleed pump (P _G) operates to transmit a command signal OFF]
After that, the process returns to the i-stage operation for determining whether the pressure in the absorber (5) is equal to or higher than the upper limit set value.
By such an operation is repeated, start-stop of the extraction pump (P _G) is repeated, noncondensable gas in the absorption refrigerating machine (A) is being discharged to the outside.

The operation of integrating the number of times of operation of the extraction pump (P _G ) in the flow chart of FIG. 9 and the operation time and the operation of notifying the oil exchange time of the extraction pump (P _G ) of the flow chart of FIG. It is similar to the notification operation of the overhaul period of the absorption liquid pump (P _a) in the flow chart of cumulative operation and the sixth view of the operating frequency and the operating time of the absorbent pump (P _a) in the flow chart of FIG. Since the words of the absorbent pump and the words of overhaul and inspection in the flow charts of FIGS. 4 and 6 need to be read as the extraction pump and the oil change, detailed description thereof will be omitted.

In addition, in the charts of FIGS. 11 and 12, August 12, 1985
Day 10:15, are displayed via the 1985 September 19, 18:00 34 min bleed pump (P _G) Metsuseji indicating oil change is required of alarm (LCD) or a printer (PR) There is.

As described above, this device uses the control unit (D / O / C) to instruct the start / stop of each of the absorption refrigeration drive devices such as the absorption liquid required pump (P _A ) and the extraction pump (P _G ). At the same time, this command information is stored in the (RAM) in the control unit (D / O / C), and the memory is confirmed by the control unit (D / O / C) [the memory of (RAM) is stored by the (CPU). While calling] each start / stop of the drive device is recognized, and the number of times and the operating time are calculated for each start / stop of the drive device by the control unit (D
・ O ・ C) (CPU) counts and stores them in the backup area of (RAM) and records them as data, and this data is sent to the printer (D ・ O ・ C) with a signal from the printer (D ・ O ・ C). Since it has a function to print out as a table according to PR), it is often possible to automatically operate the absorption refrigeration drive equipment that is automatically started and stopped when the exact start and stop times and operating time are required. It has the convenience of letting the administrator know.

This device uses signals from various sensors to control (D
・ O ・ C), while storing the momentary values of physical quantities sensed by various sensors in (RAM) in this control unit and recording them as data, this data is being stopped while the absorption refrigerator (A) is stopped. Or printer (PR) when driving
It is of course possible to have the function of printing out as a table or graph.

(G) Effects of the Invention As described above, the device of the present invention automatically accumulates and accurately records the number of times of operation and the operating time of each of the absorption chiller drive devices that are often controlled to start and stop, instead of manually. ,
The convenience of displaying this record as data in a table or graph that is easy for humans to understand is provided, and it is easy to grasp the degree of deterioration of each drive unit for absorption refrigerators and helps prevent drive unit failures. It has the effect of maintaining the refrigerator economically and easily over a long period of time.

[Brief description of drawings]

FIG. 1 is a schematic structural explanatory view showing an embodiment of an operation recording device for a drive device for an absorption refrigerator according to the present invention, and FIG.
A block diagram of the operation recording device for the driving device for the absorption chiller shown in the figure, and FIG. 3 is a device of the present invention for an absorption liquid pump, which is one of the driving devices for the absorption chiller [operation record of the driving device for the absorption chiller. FIG. 4 is a flow chart showing an example of an operation of accumulating the number of operating times (the number of times of starting and stopping) and the operating time of the absorbent pump by the apparatus of the present invention. FIG. 6 is a table showing an example of the data of the operating time and the number of times of operation (the number of times of starting and stopping) of the absorption refrigeration pump printed out by the device of the present invention, and FIG. FIG. 7 is a flow chart showing an example of the notification operation by the device, FIG. 7 is a table showing a display example of a message indicating that the absorption liquid pump according to the present invention requires disassembly and inspection, and FIG. FIG. 9 is a flow chart showing an example of the start / stop command (operation command) operation by the device of the present invention for the extraction pump which is one of the devices, and FIG. FIG. 10 is a flow chart showing an example of the informing operation by the device of the present invention of the oil exchange time of the extraction pump, and FIG. 11 and FIG. 12 are respectively shown by the device of the present invention. It is the chart which showed the example of the display of the message to the effect of the oil change of the extraction pump which printed out and was printed out. (A) ... Absorption refrigerator, (1) ... High temperature generator, (2)
...... Low temperature generator, (3) ...... Condenser, (4) …… Evaporator, (5) …… Absorber, (P _R ) …… Refrigerant liquid pump,
(P _A ) ... Absorption liquid pump, (P _G ) ... Extraction pump,
(P _W ) …… Cold / hot water pump, (P _C ) …… Cooling water pump, (B) …… Burner, (V _F ) …… Fuel control valve,
(S _GT ), (S _GP ), (S _GL ), (S _WT ), (S _WF ), (S _RT ), (S _AP ) ... sensor, (D / O / C) ... control unit, (CPU) …… Central processing unit, (ROM) …… Read only memory, (RAM) …… Random access memory, (C
LOCK) …… Clock, (I / F _S ), (I / F _KB ), (I / F _L.PR ),
(I / F _OC ) …… Interface, (KB) …… Keyboard, (LCD) …… Informer, (PR) …… Printer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisao Honda, 180 Sakata, Oizumi-cho, Gunma-gun Oizumi-cho, East Kyosanyo Electric Co., Ltd. Sanyo Electric Co., Ltd. (72) Inventor, Iwata, Ju 180, Sakata, Oizumi-cho, Gunma-gun, Toyo Kyoyo Sanyo Electric Co., Ltd. (72) Kazuo Matsumoto, 180, Sakata, Oizumi, Gunma-gun, Tokyo, Sanyo Denki (72) Inventor Masayasu Ezaki 180 Sakata, Oizumi-cho, Gunma-gun Oozumi-cho, Tokyo Sanyo Electric Co., Ltd. (72) Masahiro Maekawa 180 Sakata, Oizumi-machi, Gunma-gun Sakata, Higashi Kyosan Electric Co., Ltd. (56) References JP 62-56750 (JP, A) JP 62-106270 (JP, A)

Claims (1)

[Claims] 1. A signal for instructing start / stop of each drive device for an absorption refrigerating machine such as a heating device for a generator, a pump for absorbing liquid, a pump for refrigerant liquid, and a pump for extracting non-condensable gas,
Based on this signal, the central processing unit that integrates the number of times each of the driving devices has been operated and the operating time thereof, a data storage element that stores the data integrated by the central processing unit, and the data storage The data display device for displaying or printing out the data stored in the element in the form of a table or graph, and the absorption refrigerating machine control device for controlling the operation of the drive device based on a signal from the central processing unit An operation recording device for a drive device for an absorption chiller, wherein the central processing unit, the drive device and a data display are connected via an interface.