JPH04222362A - Absorption type water cooling and heating machine - Google Patents

Abstract

PURPOSE:To permit the supervision of the containing amount of corrosion inhibiting agent in solution. CONSTITUTION:The title machine is provided with a reproducer 1, heating diluted solution to generate refrigerant vapor, a separator 2, separating the refrigerant vapor from concentrated solution, a condenser 4, condensing the refrigerant vapor, an evaporator 6, evaporating the refrigerant solution, an absorber 7, absorbing the evaporated refrigerant vapor into the concentrated solution, and an air extracting device, storing the non-condensed gas in the absorber 7 or the evaporator 6 into a non-condensed gas storing chamber. Further, the title machine is provided with alarming means 22, 23, alarming under a condition that the accumulated time of operation of the heating device of the reproducer 1, the accumulated time of temperature of the solution or the like is deviated from a predetermined value, and a control means 21, stopping the operation of the machine when said condition is not eliminated when a predetermined time has elapsed after the alarming.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption chiller/heater, and more particularly to an absorption chiller/heater having a function of constantly monitoring the content of a corrosion inhibitor contained in a solution circulating therein.

0002

2. Description of the Related Art A corrosion inhibitor is added to the solution of an absorption water cooler/heater to prevent corrosion within the system. This corrosion inhibitor is consumed over a long period of time, and the amount of consumption varies depending on operating time, operating conditions, air intrusion, etc. For this reason, the content of the corrosion inhibitor in the solution is periodically measured, and if there is a shortage of corrosion inhibitor, the shortage is replenished. Furthermore, if the content of the corrosion inhibitor is too large, the corrosion inhibitor may settle and crystallize, and may clog an orifice or the like. Therefore, it is necessary to maintain the content of corrosion inhibitor in the solution constant.

0003

[Problems to be Solved by the Invention] However, in the above-mentioned conventional technology, when measuring the content of a corrosion inhibitor in a solution, the solution is extracted from an absorption chiller/heater at the site, and the solution is transported to an analysis laboratory. If the results of the analysis show that the content of corrosion inhibitor is insufficient, the user must go to the site again and replenish the corrosion inhibitor.
It takes a very long time from extracting the solution to replenishing the corrosion inhibitor, and the cost for measurement is also high.

[0004] Furthermore, replenishment of corrosion inhibitors through periodic measurements may be too slow. In other words, the amount of corrosion inhibitor consumed is different for each absorption chiller/heater, and during the absorption chiller/heater period when the time for replenishment is missed, corrosion rapidly increases and a large amount of noncondensable gas is generated. The inside of the water machine will suffer considerable damage.

[0005] An object of the present invention is to provide an absorption chiller/heater that has an added function of constantly monitoring the content of a corrosion inhibitor in a solution.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution. , a separator that separates the refrigerant vapor from a concentrated solution whose concentration has increased due to the generation of refrigerant vapor; a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid; A heat transfer tube through which cooling water flows is installed.
an evaporator that sprays refrigerant liquid from the condenser onto the heat transfer tubes and cools cooling water in the heat transfer tubes with heat of vaporization when the refrigerant liquid evaporates; In an absorption chiller/heater equipped with an absorber that absorbs the concentrated solution from the separator and a pump that returns the concentrated solution from the absorber to the regenerator, the cumulative operating time of the heating device that heats the regenerator. If the integrated result exceeds a predetermined time, the method is to issue an alarm, or the temperature of the solution in the regenerator is detected, the time during which the detected value exceeds a certain value is integrated, and the integrated result is set to a predetermined value. It is equipped with a means to issue an alarm when the time is exceeded.

The present invention also provides a regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; a separator that separates the concentrated solution and the refrigerant vapor generated, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows. an evaporator that is arranged to spray refrigerant liquid from the condenser to the heat exchanger tubes and cool cooling water in the heat exchanger tubes with heat of vaporization when the refrigerant liquid evaporates; an absorber for absorbing refrigerant vapor into a concentrated solution from a separator; a pump for returning the concentrated solution from the absorber to the regenerator; and a pump for extracting and separating non-condensable gas in the evaporator or absorber. In addition, in an absorption chiller-heating machine equipped with an extraction device for storing separated non-condensable gas in a non-condensable gas storage chamber, the pressure in the non-condensable gas storage chamber is detected, and when the detected value becomes a predetermined value or more, A means for issuing an alarm, or a means for detecting the liquid level of the solution in the gas riser pipe that leads the non-condensable gas to the non-condensable gas storage chamber, and issuing an alarm when the liquid level falls below a predetermined value. It is.

Furthermore, the present invention provides a regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; a separator that separates the concentrated solution and the refrigerant vapor generated, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows. an evaporator that is arranged to spray refrigerant liquid from the condenser to the heat exchanger tubes and cool cooling water in the heat exchanger tubes with heat of vaporization when the refrigerant liquid evaporates; an absorber for absorbing refrigerant vapor into a concentrated solution from a separator; a pump for returning the concentrated solution from the absorber to the regenerator; and a pump for extracting and separating non-condensable gas in the evaporator or absorber. and an extraction device for storing separated non-condensable gas in a non-condensable gas storage chamber; A pressure detection means for detecting the pressure in the gas storage chamber and an alarm when the time accumulated by the integration means exceeds a predetermined time, or when the pressure detection value detected by the pressure detection means exceeds a predetermined value. The system is equipped with an alarm means for emitting an alarm.

[0009] The present invention also provides an absorption chiller/heater having a configuration similar to that described above, including an integrating means for integrating the operating time of a heating device that heats the regenerator, and a means for integrating noncondensable gas into the noncondensable gas storage chamber. A liquid level detecting means for detecting the liquid level of the solution in the guiding gas riser pipe, and when the time accumulated by the integrating means exceeds a predetermined time, or the liquid level detected by the liquid level detecting means is It is equipped with an alarm means that issues an alarm when the temperature falls below a predetermined value.

[0010] The present invention also provides an absorption chiller/heater having a configuration similar to that described above, including a temperature detection means for detecting the temperature of the solution in the regenerator, and a time period during which the detected value exceeds a certain value. an integrating means, a pressure detecting means for detecting the pressure of the non-condensable gas storage chamber, and when the time integrated by the integrating means exceeds a predetermined time, or the pressure detection value detected by the pressure detecting means is a predetermined value; The device is equipped with an alarm means that issues an alarm when the above condition occurs.

[0011] The present invention also provides an absorption chiller/heater having a configuration similar to that described above, which includes a temperature detection means for detecting the temperature of the solution in the regenerator, and a time period during which the detected value exceeds a certain value. an integrating means, a liquid level detecting means for detecting a liquid level of a solution in a gas riser pipe that guides non-condensable gas to the non-condensable gas storage chamber, and when the time integrated by the integrating means exceeds a predetermined time; or an alarm means for issuing an alarm when the liquid level detected by the liquid level detecting means falls below a predetermined value.

[0012] Furthermore, in the absorption chiller/heater having the same configuration as described above, the alarm means is configured to detect when a predetermined time has elapsed after the occurrence of the alarm and the cumulative operating time of the heating device is less than or equal to the predetermined time. The cumulative time during which the detected pressure in the non-condensable gas storage chamber is below a predetermined value, the liquid level in the gas riser pipe is above a predetermined value, or the detected temperature of the solution in the regenerator exceeds a predetermined value. It is connected to a control means that stops the operation if the time does not exceed a predetermined time.

[0013]

According to the above structure, the operation time of the heating device is accumulated, and when the accumulated time exceeds a predetermined time period during which the corrosion inhibitor in the solution is completely consumed, an alarm is issued. If a predetermined time has elapsed after the alarm was generated and the integration result does not become less than the predetermined time, the operation is stopped.

Furthermore, since the consumption rate of the corrosion inhibitor increases as the temperature rises, even if the time during which the temperature of the solution in the regenerator exceeds a certain value is integrated and the integrated time is monitored, It is possible to know the consumption of corrosion inhibitor.

[0015] Furthermore, as corrosion occurs within the absorption chiller/heater system, the corrosion inhibitor is consumed and non-condensable gas is generated, and this non-condensable gas is stored in the non-condensable gas storage chamber. As the pressure increases, monitoring the pressure in the non-condensable gas storage chamber also provides an indication of the depletion of the corrosion inhibitor in the solution.

Furthermore, when the pressure in the non-condensable gas storage chamber increases, the increased pressure pushes down the solution in the gas riser pipe for guiding the non-condensable gas to the non-condensable gas storage chamber, so that the solution in the gas riser pipe decreases. The state of corrosion inhibitor consumption can also be monitored by monitoring the drop in the liquid level.

[0017] Furthermore, if the integration of the operating time of the heating device is combined with monitoring the pressure in the non-condensable gas storage chamber or the drop in the liquid level of the solution in the gas riser pipe, it is possible to The consumption of the corrosion inhibitor during operation can be determined from the cumulative operating time, and in the event of an abnormality when the corrosion inhibitor has been completely consumed, this can be determined from the pressure increase in the non-condensable gas storage chamber or the drop in the liquid level of the solution in the gas riser pipe. and take appropriate measures depending on the situation. This can be done by integrating the time during which the temperature of the solution in the regenerator exceeds a certain value, monitoring the pressure in the non-condensable gas storage chamber, or monitoring the drop in the level of the solution in the gas riser. The same applies to combinations of actions.

[0018]

EXAMPLES The present invention will be explained in detail below based on examples.

(First Embodiment) FIG. 1 shows the first embodiment of the present invention and is an overall configuration diagram of an absorption chiller/heater. In the figure, a high-temperature regenerator 1 includes a combustion chamber therein, absorbs refrigerant, heats a diluted absorption liquid, and generates refrigerant vapor from the diluted absorption liquid. The separator 2 evaporates the refrigerant vapor and completely separates the intermediate concentrated solution with increased concentration from the generated refrigerant vapor. The low temperature regenerator 3 is a high temperature solution heat exchanger 8 which will be described later.
The intermediate concentrated solution whose temperature has decreased is reheated by the refrigerant vapor coming from the separator 2, and further refrigerant vapor is generated from the intermediate concentrated solution to form a concentrated solution, and the refrigerant vapor coming from the separator 2 is condensed. It is converted into a refrigerant liquid and introduced into the condenser 4. The condenser 4 cools and liquefies the refrigerant vapor generated in the low-temperature regenerator 3 with cooling water flowing through the cooling pipe 5 to obtain a refrigerant liquid. The evaporator 6 is provided with a heat transfer tube 6A through which circulating water to be cooled flows, and the refrigerant liquid coming from the condenser 4 is sprayed onto the heat transfer tube 6A, and the heat of vaporization when the refrigerant liquid turns into refrigerant vapor is utilized. to cool the circulating water. The absorber 7 is sprayed with a concentrated liquid coming from the low-temperature regenerator 3, and this concentrated liquid absorbs the refrigerant vapor vaporized in the evaporator 6. A high vacuum is ensured in the evaporator 6 by the absorption action of the absorber 7, so that the refrigerant liquid spread on the heat transfer tubes 6A in the evaporator 6 can be immediately evaporated. The high-temperature solution heat exchanger 8 and the low-temperature solution heat exchanger 9 exchange heat between the intermediate concentrated solution and the concentrated solution, which are cooled in the absorber 7 and become low-temperature, to recover heat. ing. The solution pump 10 is provided to circulate a dilute absorption liquid that has absorbed refrigerant vapor. The cooling/heating switching valve 11 is a valve for switching the use of the absorption cooling/heating water machine to cooling or heating, and is opened during heating.

Further, the high temperature regenerator 1 is heated by a heating device 15. The heating device 15 includes a combustion device such as a burner, a waste gas high temperature water as a high temperature heat medium, and the like. The operation time of the heating device 15 is accumulated by the control device 21, and when the accumulated time exceeds the time when the corrosion inhibitor is completely consumed, a signal is output from the control device 21, and the lamp 22 is turned on (blinking). , or the buzzer 23 sounds, or the lamp 22 lights up (blinks) and the buzzer 23 sounds.

[0021] The operation of the heating device 15 includes cooling operation and heating operation, but since the solution temperature in the high temperature regenerator 1 becomes high during the cooling operation, It is also possible to integrate the time only during cooling operation.

(Second Embodiment) FIG. 2 shows a second embodiment of the present invention. The feature of this embodiment is that a temperature detector 24 is provided to detect the temperature of the solution in the high temperature regenerator 1, and a signal from the temperature detector 24 is taken in by the control device 21. Then, the control device 21 accumulates the time during which the solution temperature exceeds a certain value, and when the accumulated time exceeds the time during which the corrosion inhibitor is completely consumed, the control device 21 turns on the lamp 22 (as in the first embodiment). flash) or sound the buzzer 22.

By the way, the consumption rate of the corrosion inhibitor is the third
As shown in the figure, since the solution temperature varies greatly depending on the solution temperature, as in this example, the solution temperature is
) can also be used to determine the state of consumption of the corrosion inhibitor in the solution.

(Third Embodiment) FIG. 4 shows a third embodiment of the present invention.

In this embodiment, the absorber 7 has a gas bleed chamber 30.
A gas bleed chamber 30 is connected to a gas separator 32 via a gas downcomer 31. The gas separator 32 is provided with a solution return pipe 33 and a gas riser pipe 34, and the solution return pipe 33 is connected to the gas riser pipe 3 below the absorber 7 or evaporator 6.
4 are respectively connected to a non-condensable gas storage chamber 35. A gas discharge valve 36 is provided in the non-condensable gas storage chamber 35.
and the pressure switch 37 are attached, and the pressure switch 37
is connected to the control device 21.

In the above configuration, the absorption chiller/heater generates noncondensable gas while consuming the corrosion inhibitor as the system corrodes. This non-condensable gas is extracted in a gas bleed chamber 30 and conveyed through a gas downcomer pipe 31 to a gas separator 32, where it is completely separated from the solution and then passed through a gas riser pipe 31.
4 and is transported to the non-condensable gas storage chamber 35 and stored. When the non-condensable gas is stored in the non-condensable gas storage chamber 35, the pressure inside the non-condensable gas storage chamber 35 gradually rises, the pressure increase is detected by the pressure switch 37, and a detection signal is sent to the controller 21. Ru. And the non-condensable gas storage chamber 35
When the internal pressure exceeds a predetermined pressure, the lamp 22 lights up (
(flashing), or the buzzer 23 sounds, or the lamp 22 lights up (flashes) and the buzzer 23 sounds. This allows the administrator to know that the corrosion inhibitor has been consumed before the system of the absorption refrigerator becomes abnormal due to the consumption of the corrosion inhibitor, and it is possible to prevent problems from occurring. The non-condensable gas stored in the non-condensable gas storage chamber 35 is discharged to the outside via the gas discharge valve 36 when the amount exceeds a certain level.

(Fourth Embodiment) FIG. 5 shows a fourth embodiment of the present invention. The feature of this embodiment is that the gas separator 32
A level switch 37 is provided in the middle of the gas riser pipe 34 connecting the non-condensable gas storage chamber 35 and the non-condensable gas storage chamber 35, and this level switch 38 is connected to the control device 21.

With this configuration, the non-condensable gas generated due to corrosion is stored in the non-condensable gas storage chamber 35, and the amount of the stored gas increases and the pressure inside the non-condensable gas storage chamber 35 increases. Then, the liquid level of the solution in the gas riser pipe 34 decreases, and the liquid level is changed to the level switch 38.
By detecting this, it is possible to know the consumption of the corrosion inhibitor, and it is possible to prevent corrosion in the system of the absorption refrigerator.

(Fifth Embodiment) FIG. 6 shows a fifth embodiment of the present invention. This embodiment is a combination of the first embodiment and the third embodiment, and when the cumulative operating time of the heating device 15 exceeds a predetermined time, or when the non-condensable gas storage chamber 3
When the internal pressure rises above a predetermined value, a warning is issued from the lamp 22 or the buzzer 23.

(Sixth Embodiment) FIG. 7 shows a seventh embodiment of the present invention. This example is a combination of the first example and the fourth example, and when the cumulative operating time of the heating device 15 exceeds a predetermined time or the liquid level of the solution in the gas riser pipe 34 When the temperature drops below a predetermined value, the lamp 22 or buzzer 23 issues an alarm.

(Seventh Embodiment) FIG. 8 shows a seventh embodiment of the present invention. This example is a combination of the second example and the third example, and when the result of integrating the time during which the solution temperature in the high-temperature regenerator 1 exceeds a certain value exceeds a predetermined time, Or when the pressure inside the non-condensable gas storage chamber 35 rises above a predetermined value, the lamp 22 or the buzzer 23
issues an alarm.

(Eighth Embodiment) FIG. 9 shows an eighth embodiment of the present invention. This example is a combination of the second example and the fourth example, and when the result of integrating the time during which the solution temperature in the high temperature regenerator 1 exceeds a certain value exceeds a predetermined time, Alternatively, when the level of the solution in the gas riser pipe 34 drops below a predetermined value, the lamp 22 or the buzzer 23 issues an alarm.

(Ninth Embodiment) FIG. 10 shows a ninth embodiment of the present invention. In this embodiment, the alarm means of each embodiment is set such that a predetermined time has elapsed after the occurrence of the alarm, the cumulative operation time of the heating device is less than or equal to the predetermined time, and the detected value of the pressure in the non-condensable gas storage chamber is within the predetermined time. control that stops operation if the liquid level in the gas riser pipe exceeds a predetermined value, or the cumulative time during which the detected temperature of the solution in the regenerator exceeds a predetermined value does not become less than a predetermined time. It is a connection of means.

[0034] If you do not notice the warning, ignore the warning, or do not know the meaning of the warning, the vehicle will continue to be operated and there is a risk that an abnormality will occur. Therefore, a timer 40 installed in the control device 21 is used to count a predetermined period of time after an alarm occurs, for example, approximately 100 hours in the case of an absorption chiller/heater used in a normal commercial air conditioner. It is detected that one condition has not been resolved or that the alarm means 22 and 23 have not been reset, and the control device (control means) 2
1, the operation of the absorption chiller/heater is forcibly stopped. The approximately 100 hours is considered to be sufficient time for a maintenance service person or a maintenance manager to perform maintenance on the equipment. The operation of this embodiment is shown in FIG.

In the above embodiments, a water-cooled absorption chiller/heater has been described, but it goes without saying that the present invention can also be applied to an air-cooled absorption chiller/heater.

[0036]

[Effects of the Invention] As detailed above, according to the present invention,
Since the content of the corrosion inhibitor in the solution can be constantly monitored, a decrease in the corrosion inhibitor can be easily detected, and it is also possible to automate the measurement of the amount of noncondensable gas.

[0037] Furthermore, it is possible to avoid a situation where the corrosion inhibitor is reduced too much and the operation is stopped even if the alarm is not noticed, causing damage to the system of the absorption chiller/heater, and the absorption chiller/heater can be operated extremely safely. At the same time, it is possible to improve the reliability of the absorption chiller/heater.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an absorption chiller/heater showing a first embodiment of the present invention.

FIG. 2 is an overall configuration diagram of an absorption chiller/heater showing a second embodiment of the present invention.

FIG. 3 is a diagram illustrating the relationship between solution temperature and corrosion inhibitor consumption.

FIG. 4 is an overall configuration diagram of an absorption chiller/heater showing a third embodiment of the present invention.

FIG. 5 is an overall configuration diagram of an absorption chiller/heater showing a fourth embodiment of the present invention.

FIG. 6 is an overall configuration diagram of an absorption chiller/heater showing a fifth embodiment of the present invention.

FIG. 7 is an overall configuration diagram of an absorption chiller/heater showing a sixth embodiment of the present invention.

FIG. 8 is an overall configuration diagram of an absorption chiller/heater showing a seventh embodiment of the present invention.

FIG. 9 is an overall configuration diagram of an absorption chiller/heater showing an eighth embodiment of the present invention.

FIG. 10 is an overall configuration diagram of an absorption chiller/heater showing a ninth embodiment of the present invention.

FIG. 11 is a flowchart illustrating the operation of the ninth embodiment of the present invention.

[Explanation of symbols]

1 High temperature regenerator 2 Separator 3 Low temperature regenerator 4 Condenser 6 Evaporator 7 Absorber 8 High temperature solution heat exchanger 9 Low temperature solution heat exchanger 10 Solution pump 15 Heating device 21 Control device (control means) 22 Lamp 23 Buzzer 24 Temperature detector 30 Gas bleed chamber 35 Non-condensable gas storage room 37 Pressure switch 38 Level switch 40 Timer

Claims (12)

[Claims] Claim 1: A regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; A separator that separates the generated refrigerant vapor, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows, an evaporator that sprays refrigerant liquid from the condenser onto the heat transfer tubes and cools cooling water in the heat transfer tubes with heat of vaporization when the refrigerant liquid evaporates; In an absorption chiller/heater equipped with an absorber that absorbs the concentrated solution from the separator and a pump that returns the concentrated solution from the absorber to the regenerator, the cumulative operating time of the heating device that heats the regenerator. and means for issuing an alarm when the cumulative result exceeds a predetermined time. 2. The absorption chiller/heater according to claim 1, wherein the means integrates the operating time only during cooling operation. 3. A regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; and a concentrated solution that generates refrigerant vapor and has a higher concentration. A separator that separates the generated refrigerant vapor, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows, an evaporator that sprays refrigerant liquid from the condenser onto the heat transfer tubes and cools cooling water in the heat transfer tubes with heat of vaporization when the refrigerant liquid evaporates; In an absorption chiller/heater equipped with an absorber that absorbs a concentrated solution from a separator and a pump that returns the concentrated solution from the absorber to the regenerator, the temperature of the solution in the regenerator is detected and An absorption chiller/heater comprising an alarm means for integrating the time during which the detected value exceeds a certain value and issuing an alarm when the integrated result exceeds a predetermined time. 4. A regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution, and a concentrated solution that generates refrigerant vapor and has a higher concentration. A separator that separates the generated refrigerant vapor, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows, an evaporator that sprays refrigerant liquid from the condenser onto the heat exchanger tubes and cools cooling water in the heat exchanger tubes with heat of vaporization when the refrigerant liquid evaporates; an absorber for absorbing the concentrated solution from the separator; a pump for returning the concentrated solution from the absorber to the regenerator; In an absorption chiller/heater equipped with an air bleed device that stores non-condensable gas in a non-condensable gas storage chamber, an alarm that detects the pressure of the non-condensable gas storage chamber and issues an alarm when the detected value exceeds a predetermined value. An absorption chiller/heater characterized by being equipped with means. 5. A regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; and a concentrated solution that generates refrigerant vapor and has a higher concentration. A separator that separates the generated refrigerant vapor, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows, an evaporator that sprays refrigerant liquid from the condenser onto the heat transfer tubes and cools cooling water in the heat transfer tubes with heat of vaporization when the refrigerant liquid evaporates; an absorber for absorbing the concentrated solution from the separator; a pump for returning the concentrated solution from the absorber to the regenerator; In an absorption chiller/heater equipped with an extraction device for storing non-condensable gas in a non-condensable gas storage chamber, detecting the liquid level of a solution in a gas riser pipe that leads the non-condensable gas to the non-condensable gas storage chamber; An absorption chiller/heater comprising an alarm means that issues an alarm when the liquid level falls below a predetermined value. 6. A regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; and a concentrated solution that generates refrigerant vapor and has a higher concentration. A separator that separates the generated refrigerant vapor, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows, an evaporator that sprays refrigerant liquid from the condenser onto the heat transfer tubes and cools cooling water in the heat transfer tubes with heat of vaporization when the refrigerant liquid evaporates; an absorber for absorbing the concentrated solution from the separator; a pump for returning the concentrated solution from the absorber to the regenerator; In an absorption chiller/heater equipped with an extraction device for storing non-condensable gas in a non-condensable gas storage chamber, an integrating means for integrating the operating time of a heating device that heats the regenerator;
When the time accumulated by the pressure detection means for detecting the pressure in the non-condensable gas storage chamber and the integration means exceeds a predetermined time, or the pressure detection value detected by the pressure detection means exceeds a predetermined value. 1. An absorption chiller/heater comprising: an alarm means for issuing an alarm when an alarm occurs. 7. A regenerator that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; and a concentrated solution that generates refrigerant vapor and has a higher concentration. A separator that separates the generated refrigerant vapor, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows, an evaporator that sprays refrigerant liquid from the condenser onto the heat transfer tubes and cools cooling water in the heat transfer tubes with heat of vaporization when the refrigerant liquid evaporates; an absorber for absorbing the concentrated solution from the separator; a pump for returning the concentrated solution from the absorber to the regenerator; In an absorption chiller/heater equipped with an extraction device for storing non-condensable gas in a non-condensable gas storage chamber, an integrating means for integrating the operating time of a heating device that heats the regenerator;
liquid level detection means for detecting the liquid level of the solution in the gas riser pipe that guides the noncondensable gas to the noncondensable gas storage chamber;
It is characterized by comprising an alarm means that issues an alarm when the time accumulated by the integration means exceeds a predetermined time or when the liquid level detected by the liquid level detection means becomes less than a predetermined value. Absorption chiller/heater. 8. The absorption chiller/heater according to claim 6 or 7, wherein the integrating means accumulates operating time only during cooling operation. 9. A rectifier that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; and a concentrated solution that generates refrigerant vapor and becomes more concentrated. A separator that separates the refrigerant vapor generated by the regenerator, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows. , an evaporator that sprays the refrigerant liquid from the condenser onto the heat transfer tube and cools the cooling water in the heat transfer tube with the heat of vaporization when the refrigerant liquid evaporates; and a refrigerant vapor produced by evaporation in the evaporator. an absorber for absorbing the concentrated solution from the separator into the concentrated solution from the separator; a pump for returning the concentrated solution from the absorber to the regenerator; In an absorption chiller/heater equipped with an extraction device for storing non-condensable gas in a non-condensable gas storage chamber, the temperature detecting means detects the temperature of the solution in the regenerator, and the detected value exceeds a certain value. a pressure detection means for detecting the pressure in the non-condensable gas storage chamber; and a pressure detection means for detecting the pressure in the non-condensable gas storage chamber; An absorption chiller/heater comprising: an alarm means for issuing an alarm when a detected value exceeds a predetermined value. 10. A rectifier that absorbs refrigerant vapor and heats a diluted solution to generate refrigerant vapor from the diluted solution; and a concentrated solution that generates refrigerant vapor and has a higher concentration. A separator that separates the refrigerant vapor generated by the regenerator, a condenser that cools and condenses the refrigerant vapor generated in the regenerator to form a refrigerant liquid, and a heat transfer tube through which cooling water to be cooled flows. , dispersing refrigerant liquid from the condenser to the heat transfer tubes;
an evaporator that cools the cooling water in the heat transfer tube with the heat of vaporization when the refrigerant liquid evaporates; an absorber that absorbs the refrigerant vapor produced by evaporation in the evaporator into a concentrated solution from the separator; and the absorber. a pump that returns the concentrated solution from the reactor to the regenerator; and an extraction device that bleeds and separates the non-condensable gas in the evaporator or absorber and stores the separated non-condensable gas in a non-condensable gas storage chamber. an absorption chiller/heater comprising: a temperature detecting means for detecting the temperature of the solution in the regenerator; an integrating means for accumulating the time period during which the detected value exceeds a certain value; liquid level detection means for detecting the liquid level of the solution in the gas riser pipe that guides the noncondensable gas; An absorption chiller/heater comprising: an alarm means for issuing an alarm when the liquid level falls below a predetermined value. 11. The absorption chiller/heater according to claim 1, wherein the alarm means issues an alarm using at least one of a lamp and a buzzer. Absorption chiller/heater. 12. The absorption chiller/heater according to any one of claims 1, 3 to 7, and 9 to 11, wherein the alarm means is configured to detect when a predetermined period of time has elapsed after the occurrence of the alarm and when the heating device is not in operation. The time integration result is less than a predetermined time, the detected value of the pressure in the non-condensable gas storage chamber is less than a predetermined value, the liquid level in the gas riser pipe is more than a predetermined value, or the detected value of the temperature of the solution in the regenerator is a constant value. 1. An absorption chiller/heater, characterized in that the absorption chiller/heater is connected to a control means that stops operation when the cumulative time exceeding the predetermined time does not become less than a predetermined time.