Adsorption refrigeration system, monitoring method thereof, storage medium and product

Abstract

This invention discloses a monitoring method for an adsorption refrigeration system, comprising the following steps: connecting the heat exchange chamber of a first heat exchanger to the adsorption chamber of an adsorption bed; acquiring the first inlet fluid temperature and the first outlet fluid temperature of the heat exchange fluid channel of the first heat exchanger; executing a first output step: when the difference between the first inlet fluid temperature and the first outlet fluid temperature is less than a first preset value, outputting a first output result, wherein the first output result represents the completion of the current stage of the adsorption bed. This adsorption bed monitoring method can effectively solve the problem of poor monitoring effect of adsorption bed adsorption-desorption efficiency. This invention also discloses an adsorption refrigeration system monitoring method, a computer-readable storage medium, and a computer program product.

Description

Technical Field

[0001] This invention relates to the field of adsorption technology, and more specifically, to a method for monitoring an adsorption-cooling system, an adsorption-cooling system using the above-described monitoring method, a computer-readable storage medium storing the adsorption-cooling system monitoring method, and a computer program product using the above-described adsorption-cooling system monitoring method. Background Technology

[0002] Adsorption refrigeration systems generally consist of an adsorption bed, an evaporator, and a condenser. The working principle of an adsorption refrigeration system is based on the adsorption capacity of solid adsorbents (such as zeolite, activated carbon, etc.) for certain refrigerant vapors (such as water, methanol, etc.). Heating the adsorbent causes the refrigerant in the adsorbent to desorb, and the desorbed vapor releases heat and condenses into liquid in the condenser. Cooling the adsorbent allows it to regain its adsorption capacity, and the adsorption causes the refrigerant liquid in the evaporator to evaporate. The evaporation in the evaporator absorbs heat, thus achieving refrigeration.

[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art: For a single adsorption bed, the heat source fluid and cooling fluid need to be alternately introduced to alternately perform desorption and adsorption. To improve efficiency, generally, adsorption needs to begin immediately after desorption is completed, and vice versa. However, many factors affect the desorption and adsorption durations. In practical applications, it is difficult to ensure that the desorption and adsorption durations remain stable. If periodic switching is performed, sufficient time needs to be reserved to ensure that desorption and adsorption are completed, which reduces desorption efficiency. If insufficient time is reserved, desorption will be incomplete, which will affect the next stage and reduce refrigeration efficiency. Therefore, there is a problem with the poor monitoring of adsorption bed adsorption efficiency. Summary of the Invention

[0004] In view of the above, the first objective of this invention is to provide an adsorption refrigeration system monitoring method that can effectively solve the problem of poor monitoring effect of adsorption bed desorption efficiency. The second objective of this invention is to provide an adsorption refrigeration system using the above-mentioned adsorption refrigeration system monitoring method. The third objective of this invention is to provide a computer-readable storage medium for storing the above-mentioned adsorption refrigeration system monitoring method. The fourth objective of this invention is to provide a computer program product using the above-mentioned adsorption refrigeration system monitoring method.

[0005] To achieve the first objective mentioned above, the present invention provides the following technical solution:

[0006] A monitoring method for an adsorption refrigeration system includes the following steps:

[0007] Connect the heat exchange chamber of the first heat exchanger to the adsorption chamber of the adsorption bed;

[0008] Obtain the first inlet fluid temperature and the first outlet fluid temperature of the heat exchange fluid channel with the first heat exchanger;

[0009] Perform the first output step: when the difference between the first inlet fluid temperature and the first outlet fluid temperature is less than a first preset value, output the first output result, wherein the first output result represents the completion of the current stage of the adsorption bed.

[0010] The aforementioned monitoring method for adsorption refrigeration systems considers that during the adsorption or desorption phases of the adsorption bed, especially in the later stages, the desorption or desorption of the adsorbent from the working fluid by the adsorbent in the adsorption bed gradually becomes complete. At this time, the heat exchange power of the first heat exchanger gradually decreases, leading to a gradual reduction in the temperature difference between the inlet and outlet of the heat exchange fluid channel. This temperature difference persists until the adsorbent desorbs or desorbs the working fluid, reaching its minimum and stabilizing within a minimal range. Specifically, the temperature difference between the inlet and outlet fluids at this point is less than a preset value, indicating that adsorption has been completed. This provides a reference for monitoring the adsorption bed's efficiency, ensuring its efficient operation. In conclusion, this adsorption bed monitoring method effectively addresses the problem of poor monitoring of adsorption bed adsorption / desorption efficiency.

[0011] Some technical solutions also include the following steps:

[0012] The heat exchange chamber of the second heat exchanger is connected to the adsorption chamber of the adsorption bed. The first heat exchanger is a condenser and the second heat exchanger is an evaporator.

[0013] Obtain the second inlet fluid temperature and the second outlet fluid temperature of the heat exchange fluid passage with the second heat exchanger;

[0014] Perform the second output step: when the difference between the second inlet fluid temperature and the second outlet fluid temperature is less than a second preset value, output a second output result, wherein the second output result indicates that the current stage of the adsorption bed has been completed.

[0015] In some technical solutions, after outputting the first output result and before connecting the heat exchange chamber of the second heat exchanger to the adsorption chamber of the adsorption bed, the following steps are also included:

[0016] Stop supplying the desorption heat exchange fluid to the adsorption bed and disconnect the adsorption chamber of the adsorption bed from the heat exchange chamber of the first heat exchanger;

[0017] Heat exchange fluid for adsorption is supplied to the adsorption bed.

[0018] In some technical solutions, after outputting the second output result, the following steps are also included:

[0019] Stop supplying the adsorption heat exchange fluid to the adsorption bed and disconnect the adsorption chamber of the adsorption bed from the heat exchange chamber of the second heat exchanger;

[0020] Desorption heat exchange fluid is supplied to the adsorption bed;

[0021] Returning to the previous section, the heat exchange chamber of the first heat exchanger is connected to the adsorption chamber of the adsorption bed.

[0022] In some technical solutions, the execution time of the first output step is: the time point after extending the initial time point from the initial time point when the heat exchange chamber of the first heat exchanger is connected to the adsorption chamber of the adsorption bed by a first predetermined time.

[0023] In some technical solutions, the execution time of the second output step is: the time point after extending the second predetermined time from the initial time point when the heat exchange chamber of the second heat exchanger is connected to the adsorption chamber of the adsorption bed.

[0024] To achieve the second objective mentioned above, the present invention also provides an adsorption refrigeration system, comprising a first heat exchanger, a second heat exchanger, a control valve, and an adsorption bed, and further comprising a controller. The first heat exchanger has a first temperature sensor at its inlet and a second temperature sensor at its outlet; the second heat exchanger has a third temperature sensor at its inlet and a fourth temperature sensor at its outlet. The controller executes a acquired computer program to implement any of the above-described adsorption refrigeration system monitoring methods. Since the above-described adsorption refrigeration system monitoring method has the aforementioned technical effects, the adsorption refrigeration system having this monitoring method should also have the corresponding technical effects.

[0025] In some technical solutions, the controller can determine whether to execute the monitoring method of the adsorption refrigeration system based on the detection values ​​of the first temperature sensor and the third temperature sensor.

[0026] To achieve the third objective mentioned above, the present invention also provides a computer-readable storage medium for storing a computer program that, when executed by a processor, implements any of the aforementioned adsorption refrigeration system monitoring methods. Since the aforementioned adsorption bed monitoring method has the aforementioned technical effects, the computer-readable storage medium applying this adsorption refrigeration system monitoring method should also have corresponding technical effects.

[0027] To achieve the fourth objective mentioned above, the present invention also provides a computer program product, comprising a computer program / instructions, which, when executed by a processor, implements any of the aforementioned adsorption refrigeration system monitoring methods. Since the aforementioned adsorption bed monitoring method possesses the aforementioned technical effects, the computer program product applying this adsorption refrigeration system monitoring method should also possess corresponding technical effects. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the adsorption refrigeration system monitoring method provided in an embodiment of the present invention;

[0030] Figure 2 A flowchart illustrating another adsorption refrigeration system monitoring method provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the adsorption bed provided in an embodiment of the present invention. Detailed Implementation

[0032] This invention discloses a monitoring method for an adsorption-cooling system, which can effectively solve the problem of poor monitoring effect of adsorption bed desorption efficiency.

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the structure of the adsorption refrigeration system monitoring method provided in an embodiment of the present invention; Figure 2 A flowchart illustrating another adsorption refrigeration system monitoring method provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the adsorption bed provided in an embodiment of the present invention.

[0035] In some embodiments, a monitoring method for an adsorption refrigeration system is provided, which mainly includes the following steps.

[0036] Step S10: Connect the heat exchange chamber of the first heat exchanger to the adsorption chamber of the adsorption bed.

[0037] The first heat exchanger can be either a condenser or an evaporator. If the adsorption bed is currently in the desorption stage, the first heat exchanger is a condenser; if the adsorption bed is currently in the adsorption stage, the first heat exchanger is an evaporator. Alternatively, the first heat exchanger can alternately function as both an evaporator and a condenser. The following explanation uses the example of a condenser and an evaporator as an example.

[0038] After adsorption in the adsorption bed is complete, a desorption heat exchange fluid is introduced into the adsorption bed. After the desorption heat exchange fluid is introduced, the adsorption chamber and the evaporation chamber of the evaporator are disconnected, and then the adsorption chamber and the condensation chamber are connected. At this point, under the heating of the desorption heat exchange fluid, the gaseous adsorbent in the adsorption chamber begins to desorb, and then the gaseous adsorbent enters the condensation chamber, i.e., the aforementioned heat exchange chamber. Then, the cooling fluid flowing into the condenser's cooling fluid channel (heat exchange fluid channel) absorbs heat from the gaseous adsorbent in the condensation chamber, causing the gaseous adsorbent to condense into a liquid adsorbent. The adsorption chamber of the adsorption bed continues to desorb the gaseous adsorbent, continuously condensing it into a liquid adsorbent in the condensation chamber. After absorbing heat, the temperature of the cooling fluid channel increases, manifested in that the inlet temperature of the cooling fluid channel is lower than the outlet temperature. If the cooling fluid entering the cooling fluid channel fluctuates, the corresponding outlet temperature will also fluctuate. Considering the time it takes to flow through the cooling fluid channel, the corresponding fluctuation of the outlet temperature will exhibit lag. If fluctuations exist, the lag should be taken into account when comparing temperature differences to ensure that the inlet and outlet temperature differences being compared refer to the temperature difference of the same cross-section of the cooling fluid when it flows through the inlet and outlet.

[0039] As the amount of adsorbent that can be desorbed in the adsorption chamber gradually decreases, the condensation efficiency of the corresponding condensation chamber will decrease, and the temperature difference between the inlet temperature and the outlet temperature of the cooling fluid channel will become smaller.

[0040] As the adsorbent in the adsorption chamber is desorbed, the corresponding condenser stops condensing. At this point, the cooling fluid will no longer absorb heat from the adsorbent, thus minimizing the temperature difference between the inlet temperature of the fluid channel and the outlet temperature of the cooling fluid channel, and maintaining stability in the minimum state.

[0041] After desorption in the adsorption bed is complete, an adsorption heat exchange fluid is introduced into the adsorption bed. After the adsorption heat exchange fluid is introduced, the adsorption chamber and the condenser chamber of the condenser are disconnected, and then the adsorption chamber and the evaporation chamber are connected. At this point, the adsorption chamber, cooled by the adsorption heat exchange fluid, begins to adsorb the gaseous working substance present in the adsorption chamber. Then, the gaseous working substance in the evaporation chamber enters the adsorption chamber, which is the aforementioned heat exchange chamber. The cooling fluid flowing into the evaporator's chilled fluid channel (heat exchange fluid channel) then releases heat to the gaseous working substance in the evaporation chamber, causing the corresponding liquid working substance in the evaporation chamber to evaporate, forming a gaseous working substance. This allows for heat absorption from the chilled fluid, and the gaseous working substance enters the adsorption chamber to be adsorbed by the adsorbent. The adsorbent in the adsorption bed continues to adsorb the gaseous working substance, ensuring that the liquid working substance in the evaporation chamber continuously evaporates into a gaseous working substance. After the chilled fluid channel releases heat, its temperature decreases, manifested in the inlet temperature being higher than the outlet temperature. If there are fluctuations in the chilled fluid entering the chilled fluid channel, the corresponding outlet temperature will also fluctuate. Considering the time it takes to flow through the cooling fluid channel, the corresponding fluctuations in the outlet temperature will exhibit lag. If there are fluctuations, the lag should be taken into account when comparing temperature differences to ensure that the inlet and outlet temperature differences being compared refer to the temperature difference of the same cross-section of the chilled fluid when it flows through the inlet and outlet.

[0042] As the amount of adsorbent material that can be adsorbed in the adsorption chamber gradually decreases, the evaporation efficiency of the corresponding evaporation chamber will decrease, and the temperature difference between the inlet temperature of the refrigeration fluid channel and the outlet temperature of the cooling fluid channel will become smaller.

[0043] As the adsorbent in the adsorption chamber is basically adsorbed, the corresponding evaporation chamber stops evaporating. At this point, the refrigerant will no longer release heat to the adsorbent, thus minimizing the temperature difference between the inlet temperature and the outlet temperature of the refrigerant channel and maintaining stability in the minimum state.

[0044] Through the above analysis, it can be found that regardless of whether the first heat exchanger is a condenser or an evaporator, when the adsorption bed enters the corresponding desorption or adsorption stage, as the current stage continues, the amount of gaseous adsorbent that the adsorption bed can desorb or adsorb gradually decreases. This results in low heat exchange efficiency in the heat exchange chamber, and consequently, a decrease in the heat exchange fluid channel of the first heat exchanger. This causes the temperature difference between the inlet and outlet of the heat exchange fluid channel to gradually decrease. Furthermore, when the amount of gaseous adsorbent that the adsorption bed can desorb or adsorb is essentially zero, the temperature difference between the inlet and outlet of the heat exchange fluid channel reaches its minimum and remains relatively stable. This also signifies the completion of the current stage of the adsorption bed. The specific judgment steps are as follows.

[0045] Step S20: Obtain the first inlet fluid temperature and the first outlet fluid temperature of the heat exchange fluid channel of the first heat exchanger.

[0046] The specific start time can be before or after step S10, but at least before step S30 and continue until step S30. The acquisition method can be real-time acquisition of the first inlet fluid temperature and the first outlet fluid temperature. Alternatively, it can be acquired periodically, such as at approximately one-second intervals.

[0047] One method for obtaining the temperature is to install a temperature sensor at both the inlet and outlet of the heat exchange fluid channel of the first heat exchanger to obtain the inlet and outlet temperatures of the heat exchange fluid channel, respectively. It should be noted that the temperature sensor readings primarily reflect the inlet and outlet temperatures of the heat exchange fluid channel. These readings can be obtained directly or indirectly, as described above, with the accuracy depending on the inlet and outlet temperatures of the heat exchange fluid channel.

[0048] Step S30: Execute the first output step: When the difference between the first inlet fluid temperature and the first outlet fluid temperature is less than a first preset value, output the first output result, wherein the first output result represents the completion of the current stage of the adsorption bed.

[0049] As mentioned above, at least in the later stages of communication between the heat exchange chamber of the first heat exchanger and the adsorption chamber of the adsorption bed, the temperature difference between the first inlet fluid and the first outlet fluid will gradually decrease. Therefore, by monitoring whether the temperature difference between the first inlet fluid and the first outlet fluid reaches or approaches its minimum value, it can be determined whether the current stage of the adsorption bed is complete. When the temperature difference is less than a first preset value, the first output result indicates that the current stage of the adsorption bed is complete. If the first heat exchanger is a condenser, it indicates that the desorption of the adsorption bed is complete; if the first heat exchanger is an evaporator, it indicates that the adsorption of the adsorption bed is complete.

[0050] The aforementioned monitoring method for adsorption refrigeration systems considers that during the adsorption or desorption phases of the adsorption bed, especially in the later stages, the desorption or desorption of the adsorbent from the working fluid by the adsorbent in the adsorption bed gradually becomes complete. At this time, the heat exchange power of the first heat exchanger gradually decreases, leading to a gradual reduction in the temperature difference between the inlet and outlet of the heat exchange fluid channel. This temperature difference persists until the adsorbent desorbs or desorbs the working fluid, reaching its minimum and stabilizing within a minimal range. Specifically, the temperature difference between the inlet and outlet fluids at this point is less than a preset value, indicating that adsorption has been completed. This provides a reference for monitoring the adsorption bed's efficiency, ensuring its efficient operation. In conclusion, this adsorption bed monitoring method effectively addresses the problem of poor monitoring of adsorption bed adsorption / desorption efficiency.

[0051] In some embodiments, as described above, when the first heat exchanger is an evaporator, the first output result indicates that the adsorption bed adsorption stage of the current connected evaporator is completed; while when the first heat exchanger is a condenser, the first output result indicates that the adsorption bed adsorption stage of the current connected condenser is completed.

[0052] To monitor both the adsorption and desorption stages, a monitoring method is proposed that monitors both the desorption and adsorption stages of the adsorption bed. In this method, a first heat exchanger and a second heat exchanger can be configured, with the first heat exchanger acting as a condenser and the second heat exchanger acting as an evaporator.

[0053] Specifically, based on the above steps S10 and S20, it is preferable to further include:

[0054] Step S40: Connect the heat exchange chamber of the second heat exchanger to the adsorption chamber of the adsorption bed.

[0055] The connection method can be as described in the embodiments. Generally, for the adsorption chamber of a single adsorption bed, it is alternately connected to the evaporation chamber and the condensation chamber. When not connected, the valves between the two are closed.

[0056] Step S50: Obtain the second inlet fluid temperature and the second outlet fluid temperature of the heat exchange fluid channel of the second heat exchanger.

[0057] The acquisition method can be as described in the above embodiments.

[0058] Step S60: Perform the second output step: When the difference between the second inlet fluid temperature and the second outlet fluid temperature is less than a second preset value, output a second output result, wherein the second output result indicates that the current stage of the adsorption bed has been completed.

[0059] As described above, after the adsorption bed completes the desorption stage, the adsorption bed needs to be introduced with an adsorption heat exchange fluid. That is, step S40 is executed to connect the heat exchange chamber of the second heat exchanger with the adsorption chamber of the adsorption bed, and the adsorption bed enters the adsorption stage.

[0060] In some embodiments, between step S30 and step S40, i.e. after outputting the first output result, the method further includes:

[0061] Step S70: Stop supplying the desorption heat exchange fluid to the adsorption bed and disconnect the adsorption chamber of the adsorption bed from the heat exchange chamber of the first heat exchanger.

[0062] That is, after the first result is output, but the current desorption stage is completed, the valve between the adsorption chamber of the adsorption bed and the heat exchange chamber of the first heat exchanger needs to be closed, and the heat exchange fluid for desorption should no longer be introduced.

[0063] Step S80: Supply the adsorption heat exchange fluid to the adsorption bed.

[0064] That is, when the adsorption heat exchange fluid is supplied to the adsorption bed, it indicates that the adsorption bed has entered the adsorption stage. After the adsorption bed enters the adsorption stage, step S40 can be executed to determine whether it has entered the adsorption stage.

[0065] In some embodiments, correspondingly, after step S60, the method further includes:

[0066] Step S90: Stop supplying the adsorption heat exchange fluid to the adsorption bed and disconnect the adsorption chamber of the adsorption bed from the heat exchange chamber of the second heat exchanger.

[0067] After the second output result is output, it indicates that the current adsorption stage is complete, and the heat exchange fluid for adsorption needs to be stopped and no longer connected to the adsorption chamber.

[0068] Step S100: Supply the desorption heat exchange fluid to the adsorption bed.

[0069] Step S110: Return to the step of connecting the heat exchange chamber of the first heat exchanger with the adsorption chamber of the adsorption bed until the adsorption refrigeration system stops operating.

[0070] When the heat exchange fluid for desorption is supplied to the adsorption bed, it indicates that the adsorption bed has entered the desorption stage. After the adsorption bed enters the adsorption stage, step S10 can be executed to determine whether it has entered the adsorption stage. This is unless the adsorption refrigeration system stops operating.

[0071] Of course, the adsorption refrigeration system can operate at any time.

[0072] In some embodiments, the execution time of step S30 can be: the time point after extending the first predetermined time from the initial time point when the heat exchange chamber of the first heat exchanger is connected to the adsorption chamber of the adsorption bed.

[0073] At the initial time point when the heat exchange chamber of the first heat exchanger connects with the adsorption chamber of the adsorption bed, the adsorption bed begins to enter the first stage, namely the desorption stage. However, at this time, the judgment in step S30 does not begin. Instead, a time judgment is performed first to ensure that the desorption stage enters a stable stage, thus avoiding early interference in the desorption stage. Generally, the first predetermined time should ensure that the pressure in the adsorption chamber is sufficiently higher than the pressure in the condensation chamber. Generally, the first predetermined time can be the time for preheating to be completed, or about one-tenth of the estimated desorption time, to ensure effective monitoring.

[0074] Similarly, the execution time of step S60 can be: the time point after extending the second predetermined time from the initial time point when the heat exchange chamber of the second heat exchanger is connected to the adsorption chamber of the adsorption bed.

[0075] The initial time point when the heat exchange chamber of the second heat exchanger connects with the adsorption chamber of the adsorption bed marks the beginning of the second stage, i.e., the adsorption stage. However, the judgment in step S60 does not begin at this time. Instead, a time judgment is performed first to ensure that the adsorption stage enters a stable phase, thus avoiding early interference in the adsorption stage. Generally, the second predetermined time should ensure that the pressure in the adsorption chamber is sufficiently lower than the pressure in the evaporation chamber. Typically, the second predetermined time can be the time required for precooling to complete, or approximately one-tenth of the estimated adsorption time, ensuring effective monitoring.

[0076] In some embodiments, a method for monitoring an adsorption bed is provided, which mainly includes the following steps:

[0077] Step 210: Connect the condenser chamber of the condenser to the adsorption chamber of the adsorption bed so that the adsorption bed enters the desorption stage.

[0078] Generally, desorption can be carried out after the adsorption bed has completed adsorption.

[0079] In the initial stage of desorption, i.e., when desorption is required, the adsorption bed needs to be circulated with a heat exchange fluid for desorption, which is generally a high-temperature heat source fluid, such as around 55 degrees Celsius. At this time, the adsorption bed needs to be preheated first, and then the adsorbent begins to desorb a large amount of gaseous adsorbent.

[0080] The condenser's condensing chamber is connected to the adsorption chamber of the adsorption bed to initiate the desorption phase. At this point, cooling fluid flows into the condenser's cooling fluid channel; the temperature of this flowing cooling fluid is typically around 28 degrees Celsius. The timing of the connection between the condenser's condensing chamber and the adsorption chamber of the adsorption bed can be categorized into three main scenarios, as detailed below:

[0081] In the first scenario, while the desorption heat exchange fluid is introduced into the heat exchange channel of the adsorption bed, the adsorption chamber and condensation chamber of the adsorption bed are connected. The preheating process then proceeds in two stages. Initially, the gas in the condensation chamber flows into the adsorption chamber for a very short time. This may cause the outlet temperature of the cooling fluid channel in the condenser to be slightly lower than the inlet temperature, or the two temperatures to be close. Generally, the outlet temperature of the cooling fluid channel is around 28 degrees Celsius. Later, as the amount of gaseous adsorbent desorbed from the adsorption chamber gradually increases, the corresponding pressure also rises. More gaseous adsorbent enters the condensation chamber, releasing heat to the cooling fluid in the cooling fluid channel, causing the outlet temperature of the cooling fluid channel to gradually increase relative to the inlet temperature, for example, by 3 degrees Celsius, reaching approximately 31 degrees Celsius.

[0082] The second scenario involves connecting the adsorption chamber and condensation chamber of the adsorption bed when the preheating is complete or nearly complete. At this point, the adsorption chamber already contains a large amount of gaseous adsorbent. Connecting the adsorption chamber and condensation chamber at this stage allows a large amount of gaseous adsorbent to rapidly enter the condensation chamber, causing the cooling fluid entering the condensation chamber to heat up quickly. This results in the outlet temperature of the cooling fluid channel being approximately 3 degrees Celsius higher than the inlet temperature, for example, around 31 degrees Celsius.

[0083] The third scenario involves installing a one-way valve between the adsorption chamber and the condensation chamber of the adsorption bed. As the temperature in the adsorption chamber rises and the amount of gaseous adsorbent gradually increases, the pressure in the adsorption chamber gradually rises until it exceeds the pressure in the condensation chamber, at which point the one-way valve opens. The gaseous adsorbent then begins to flow into the condensation chamber, releasing heat to the cooling fluid. Over time, the amount of desorbed gaseous adsorbent in the adsorption chamber increases significantly. This causes the outlet temperature of the cooling fluid channel to be temporarily higher than the inlet temperature, for example, by 3 degrees Celsius, resulting in an outlet temperature of approximately 31 degrees Celsius.

[0084] Therefore, regardless of the above situation, around the time the preheating is completed, approximately 30 to 60 seconds have passed since the desorption heat exchange fluid was first introduced. As a result, the desorption efficiency of the adsorption chamber of the adsorption bed gradually increases, and the temperature at the outlet of the cooling fluid channel gradually rises relative to the inlet temperature.

[0085] Then, in the early stage of desorption, the adsorption chamber will stably desorb some gaseous adsorbent, and the corresponding condensation chamber will stably condense a portion of the gaseous adsorbent. The condensation efficiency remains stable, so the temperature at the outlet of the cooling fluid channel will be relatively stable relative to the inlet temperature, such as a temperature difference of about 3 degrees Celsius. At this time, the outlet temperature of the cooling fluid channel is about 3 degrees Celsius higher than the inlet temperature of the cooling fluid channel.

[0086] Then, in the later stage of desorption, the efficiency of the gaseous adsorbent in the adsorption chamber decreases, that is, the amount of desorption per unit time becomes smaller and smaller. Correspondingly, the amount of gaseous adsorbent in the condensation chamber also decreases, and the condensation efficiency decreases. As a result, the heat absorption of the cooling fluid in the cooling fluid channel will decrease. Therefore, the temperature difference between the outlet temperature and the inlet temperature of the cooling fluid channel gradually decreases, that is, the outlet temperature of the cooling fluid channel gradually approaches the inlet temperature of the cooling fluid channel. For example, the temperature difference gradually decreases from 3 degrees Celsius to about 0.3 degrees Celsius.

[0087] Around the time desorption is complete, the temperature difference between the cooling fluid channel outlet and inlet will reach a stable value, such as about 0.3 degrees Celsius, with the cooling fluid channel outlet temperature at this point being 28.3 degrees Celsius. After desorption is complete, the cooling fluid channel outlet temperature will be slightly higher than the cooling fluid channel inlet temperature, mainly due to heat loss, but it will remain at a stable value.

[0088] The above analysis reveals that during the brief preheating phase, the temperature difference between the cooling fluid channel outlet and inlet temperatures may be unstable or uncertain. However, after this brief preheating phase, the temperature difference quickly reaches its maximum, approximately 60 seconds later. Then, a longer desorption phase follows, during which the temperature difference gradually decreases until it stabilizes within a small range. Therefore, by monitoring the temperature difference changes during the later stages, it is possible to determine whether desorption is complete. The specific steps are as follows.

[0089] Step 220: Obtain the first inlet fluid temperature T of the cooling fluid channel of the condenser. lj Obtain the first outlet fluid temperature T of the cooling fluid channel. lc .

[0090] It should be noted that it is preferable to obtain the first inlet fluid temperature T in real time. lj and the first outlet fluid temperature T lc The start time point for data acquisition can be after or before step 210, but it must continue at least until step 230 to provide reliable data for step 230.

[0091] The temperature of the first inlet fluid T lj The temperature can be obtained through a temperature sensor installed at the inlet of the cooling fluid channel, or it can be obtained externally. The first outlet fluid temperature T... lc The temperature can be obtained through a temperature sensor located at the outlet of the cooling fluid channel, or it can be obtained externally.

[0092] The acquisition method is usually real-time acquisition, but it can also be periodic acquisition. If periodic acquisition is used, the interval should not be too long, generally 1 second is the standard.

[0093] Step 230: At the first inlet fluid temperature T lj and the first outlet fluid temperature T lc When the difference is less than a first preset value, a first output result is output, wherein the first output result indicates that the desorption stage of the adsorption bed is completed.

[0094] If the preheating stage is considered, step 230 can begin after the current preheating stage is complete. Generally, the preheating time is not too long and is relatively stable. It can be started at the beginning of introducing the desorption heat exchange fluid into the adsorption bed. After a predetermined safe interval, to ensure sufficient preheating, step 230 can be executed. If the desorption time is between 10 and 15 minutes, and the preheating time is generally around 20 seconds, step 230 can be started 2 minutes after the desorption heat exchange fluid is introduced. This effectively ensures the safety of the detection.

[0095] The first preset value is generally a fixed value. To ensure the reliability of the fixed value, it can be obtained experimentally. During the experiment, for example, the time for introducing the heat exchange fluid for desorption can be extended to ensure desorption is complete. Then, the temperature difference between the outlet and inlet temperatures of the cooling fluid channel is measured and used as a reference. If multiple experiments show that the temperature difference between the outlet and inlet temperatures of the cooling fluid channel stabilizes between 0.2 and 0.3 degrees Celsius when desorption is fully completed, then the first preset value can be set at 0.35 degrees Celsius. Through the above analysis, it can be found that when the adsorption bed can still desorb the gaseous adsorbent, the temperature difference between the outlet and inlet temperatures of the cooling fluid channel is generally not less than 0.4 degrees Celsius. Of course, the first preset value can also be obtained through other methods.

[0096] The above analysis reveals that, at least in the mid-to-late stages, the temperature difference between the cooling fluid channel outlet and inlet gradually decreases, reaching its minimum value upon completion of desorption. Therefore, determining whether desorption is complete can be based on whether the minimum value or near-minimum value has been reached, offering a degree of reliability.

[0097] After a valid judgment is made, a first output result will be output. This first output result can be used as a monitoring condition to determine the desorption efficiency of the adsorption bed. It can also be used as a control condition for the adsorption bed, such as a condition to stop the flow of heat exchange fluid for desorption, that is, a necessary condition for the adsorption bed to switch to the adsorption stage. In other words, the prerequisite for switching from the desorption stage to the adsorption stage is that the aforementioned first output result must be obtained.

[0098] Step 240: When obtaining the first output result, disconnect the condensation chamber of the condenser from the adsorption chamber of the adsorption bed.

[0099] At this point, the first output result is used as the switching condition. That is, after obtaining the first output result, it means that desorption is complete, and the next stage, namely the adsorption stage, can be entered by introducing the adsorption heat exchange fluid. General step 240 also includes stopping the introduction of the adsorption heat exchange fluid into the heat exchange channel of the adsorption bed.

[0100] Step 250: Connect the evaporation chamber of the evaporator with the adsorption chamber of the adsorption bed so that the adsorption bed enters the adsorption stage.

[0101] Generally, adsorption can begin after desorption in the adsorption bed is complete.

[0102] In the initial stage of adsorption, i.e., when adsorption is required, the adsorption bed needs to be circulated with a heat exchange fluid for adsorption, which is generally a cooling fluid with a relatively low temperature, such as around 28 degrees Celsius. At this time, the adsorption bed needs to be pre-cooled before the adsorbent begins to adsorb a large amount of gaseous working fluid.

[0103] The evaporation chamber of the evaporator is connected to the adsorption chamber of the adsorption bed to allow the adsorption bed to enter the adsorption stage. At this time, chilled fluid flows into the chilled fluid channel of the evaporator, and the temperature of the flowing chilled fluid is generally around 22 degrees Celsius. The timing of the connection between the evaporation chamber of the evaporator and the adsorption chamber of the adsorption bed mainly falls into three categories, as detailed below:

[0104] In the first scenario, the adsorption chamber and evaporation chamber of the adsorption bed are connected simultaneously with the heat exchange fluid introduced into the heat exchange channel. From this point until pre-cooling is complete, there are two stages. Initially, as the pressure and temperature in the adsorption chamber decrease, the gas in the adsorption chamber flows into the evaporation chamber (reverse flow). This flow is very brief, and may cause the outlet temperature of the evaporator's chilled fluid channel to be slightly higher than the inlet temperature, or even close to it. Generally, the outlet temperature of the chilled fluid channel is around 22 degrees Celsius. Later, as the amount of gaseous adsorbent adsorbed from the adsorption chamber gradually increases, the corresponding pressure decreases. More gaseous adsorbent enters the adsorption chamber, causing more liquid adsorbent in the evaporation chamber to evaporate. This allows the chilled fluid in the chilled fluid channel to absorb heat, gradually lowering the outlet temperature relative to the inlet temperature, achieving a cooling effect, such as a temperature reduction of about 3 degrees Celsius, with the outlet temperature of the chilled fluid channel around 19 degrees Celsius.

[0105] The second scenario involves connecting the adsorption chamber and evaporation chamber of the adsorption bed after precooling is complete or nearly complete. At this point, the pressure in the adsorption chamber has significantly decreased, and the amount of gaseous adsorbent present has also significantly reduced. Connecting the adsorption and evaporation chambers at this stage allows a large amount of gaseous adsorbent from the evaporation chamber to rapidly enter the adsorption chamber. This causes the cooling fluid entering the evaporation chamber to cool down rapidly, resulting in a decrease in the outlet temperature of the refrigeration fluid channel compared to its inlet temperature, for example, a decrease of 3 degrees Celsius, with the outlet temperature of the refrigeration fluid channel around 19 degrees Celsius.

[0106] The third scenario involves installing a one-way valve between the adsorption chamber and the condensation chamber of the adsorption bed. As the temperature in the adsorption chamber decreases and the gaseous working fluid is gradually adsorbed, the pressure in the adsorption chamber gradually decreases until it falls below the pressure in the evaporation chamber, at which point the one-way valve opens. Then, the gaseous working fluid in the evaporation chamber begins to flow into the adsorption chamber, causing the liquid working fluid in the evaporation chamber to gradually evaporate. Over time, the amount of gaseous working fluid that can be adsorbed in the adsorption chamber gradually increases. This results in a significant decrease in the outlet temperature of the refrigeration fluid channel compared to the inlet temperature for a short period, such as a decrease of 3 degrees Celsius, with the outlet temperature of the refrigeration fluid channel reaching approximately 19 degrees Celsius.

[0107] Therefore, regardless of the above situation, around the time the precooling is completed, approximately 30 to 60 seconds have passed since the adsorption heat exchange fluid was first introduced. As a result, the adsorption efficiency of the adsorption chamber of the adsorption bed gradually increases, and the outlet temperature of the refrigeration fluid channel gradually decreases relative to the inlet temperature.

[0108] Then, in the early stage of desorption, the adsorption chamber will stably adsorb some gaseous adsorbent, and the corresponding evaporation chamber will stably release heat to a portion of the gaseous adsorbent, so that the gaseous adsorbent is stably evaporated and the evaporation efficiency remains stable. Therefore, at this time, the temperature at the outlet of the refrigeration fluid channel will be relatively stable relative to the inlet temperature, such as the temperature difference fluctuating around 3 degrees Celsius. At this time, the outlet temperature of the refrigeration fluid channel is about 3 degrees Celsius lower than the inlet temperature of the refrigeration fluid channel.

[0109] Then, in the later stage of desorption, the efficiency of the gaseous adsorbent in the adsorption chamber decreases, that is, the amount of adsorption per unit time becomes smaller and smaller. Correspondingly, the amount of gaseous adsorbent in the evaporation chamber also decreases, and the evaporation efficiency decreases. As a result, the heat release of the refrigeration fluid in the refrigeration fluid channel will decrease. Therefore, the temperature difference between the outlet temperature and the inlet temperature of the refrigeration fluid channel gradually decreases, that is, the outlet temperature of the refrigeration fluid channel gradually approaches the inlet temperature of the refrigeration fluid channel. For example, the temperature difference gradually decreases from 3 degrees Celsius to about 0 degrees Celsius.

[0110] Around the time adsorption is complete, the temperature difference between the outlet and inlet temperatures of the cryogenic fluid channel will reach a stable value, such as around 0 degrees Celsius, with the outlet temperature at this point being 22 degrees Celsius. After adsorption is complete, the outlet temperature may still be slightly higher than the inlet temperature, mainly due to heat loss, but it will remain at a stable value.

[0111] The above analysis reveals that during the brief pre-cooling phase, the temperature difference between the outlet and inlet temperatures of the cryogenic fluid channel may be unstable or uncertain. However, after this brief pre-cooling phase, the temperature difference quickly reaches its maximum, approximately within 60 seconds. Then, a longer adsorption phase follows, during which the temperature difference gradually decreases until it stabilizes within a small range. Therefore, by monitoring the temperature difference changes during the later, key time phases, the completion of adsorption can be determined. The specific steps are as follows.

[0112] Step 260: Obtain the second inlet fluid temperature T of the evaporator's refrigerant fluid channel. dj Obtain the second outlet fluid temperature T of the cryogenic fluid channel. dc .

[0113] It should be noted that it is preferable to obtain the second inlet fluid temperature T in real time. dj and the second outlet fluid temperature T dc The start time point for data acquisition can be after step 150 or before step 250, but it must continue at least until step 270 to provide reliable data for step 270.

[0114] The second inlet fluid temperature T dj The temperature can be obtained through a temperature sensor installed at the inlet of the chilled fluid channel, or it can be obtained externally. The second outlet fluid temperature T... dc The temperature can be obtained through a temperature sensor located at the outlet of the refrigeration fluid channel, or it can be obtained externally.

[0115] The acquisition method is usually real-time acquisition, but it can also be periodic acquisition. If periodic acquisition is used, the interval should not be too long, generally 1 second is the standard.

[0116] Step 270: At the second inlet fluid temperature T dj and the second outlet fluid temperature T dc When the difference is less than a second preset value, a second output result is output, wherein the second output result indicates that the adsorption stage of the adsorption bed is completed.

[0117] If the pre-cooling stage is considered, step 270 can begin after the pre-cooling is completed in the current stage. Generally, the pre-cooling time is not too long and is relatively stable. The starting point can be the time when the adsorption heat exchange fluid is introduced into the adsorption bed. After a predetermined safe interval, to ensure sufficient pre-cooling, step 270 can be executed. If the adsorption time is between 10 and 15 minutes, and the pre-cooling time is generally around 20 seconds, step 270 can be started 2 minutes after the adsorption heat exchange fluid is introduced. This effectively ensures the safety of the detection.

[0118] The second preset value is generally a set value. To ensure the reliability of the set value, it can be obtained experimentally. During the experiment, for example, the time for introducing the heat exchange fluid for adsorption can be extended to ensure that adsorption is complete. Then, the temperature difference between the outlet and inlet temperatures of the chilled fluid channel is measured and used as a reference. Adjustments are generally needed to ensure the reliability of the measurement. If multiple experiments show that the temperature difference between the outlet and inlet temperatures of the chilled fluid channel stabilizes between -0.2°C and 0.2°C when adsorption is fully complete, then the first preset value can be set to 0.3°C. Through the above analysis, it can be found that when the adsorption bed can still adsorb gaseous working fluid, the temperature difference between the outlet and inlet temperatures of the chilled fluid channel is generally not less than 0.4°C. Of course, the second preset value can also be obtained through other methods.

[0119] The above analysis reveals that, at least in the later stages, the temperature difference between the outlet and inlet temperatures of the cryogenic fluid channel gradually decreases, reaching its minimum when adsorption is complete. Therefore, whether adsorption is complete can be determined based on whether this minimum value is reached or nearly reached, offering a degree of reliability.

[0120] After a valid judgment is made, a second output result will be output. This second output result can be used as a monitoring condition to determine the adsorption efficiency of the adsorption bed. It can also be used as a control condition for the adsorption bed, such as stopping the flow of the heat exchange fluid for adsorption, which is a necessary condition for the adsorption bed to switch to the desorption stage. In other words, the prerequisite for switching from the adsorption stage to the desorption stage is that the aforementioned second output result must be obtained.

[0121] Step 280: Disconnect the evaporation chamber of the evaporator from the adsorption chamber of the adsorption bed; return to step 210 until the adsorption bed stops working.

[0122] At this point, the second output result is used as the switching condition. That is, after obtaining the first output result, it means that desorption is complete, and the next stage, namely the adsorption stage, can be entered by introducing the adsorption heat exchange fluid. General step 280 also includes stopping the introduction of the adsorption heat exchange fluid into the heat exchange channel of the adsorption bed.

[0123] Based on the adsorption refrigeration system monitoring method provided in the above embodiments, the present invention also provides an adsorption bed, including a first heat exchanger, a second heat exchanger, a control valve, and an adsorption bed, and further including a controller. The first heat exchanger has a first temperature sensor at its inlet and a second temperature sensor at its outlet in its heat exchange fluid channel; the second heat exchanger has a third temperature sensor at its inlet and a fourth temperature sensor at its outlet in its heat exchange fluid channel. The controller is used to execute an acquired computer program to implement any one of the adsorption refrigeration system monitoring methods in the above embodiments. Since this adsorption bed adopts the adsorption refrigeration system monitoring method in the above embodiments, the beneficial effects of this adsorption bed are explained in the above embodiments.

[0124] The adsorption bed contains an adsorbent in its adsorption chamber. The working fluid, used in conjunction with the adsorbent, flows through the adsorption chamber and the condensation chamber of the condenser, and also flows through the evaporator. The working fluid and adsorbent combine to form a working fluid pair. In an adsorption refrigeration system, multiple working fluid pairs can be configured. One adsorbent can be paired with different working fluids, or multiple adsorbents can be paired with a single working fluid. A typical adsorption refrigeration system includes the aforementioned adsorption bed, evaporator, and condenser.

[0125] For adsorption beds, there are two main operating states: adsorption and desorption, which are generally carried out in stages. In the adsorption state, a low-temperature fluid, i.e., the heat exchange fluid for adsorption, is used to cool the adsorption bed, allowing the adsorbent within the bed to adsorb the gaseous working fluid, ensuring continuous adsorption capacity in the adsorption chamber until the adsorbent reaches a preset saturation state. Taking physical adsorption as an example, the gaseous working fluid liquefies into a liquid state, maintaining a low-pressure state within the adsorption chamber to continuously draw in gaseous working fluid, such as continuously adsorbing gaseous working fluid from the evaporator, allowing the evaporator to continuously absorb heat through evaporation. In the desorption state, a high-temperature fluid, i.e., the heat exchange fluid for desorption, is generally used to heat the adsorption bed, causing the adsorbent to desorb from the adsorbent, forming a gaseous working fluid again. This gaseous working fluid then enters the condenser, where it liquefies back into a liquid state. The evaporator and condenser can be the same structure to alternate between evaporation and condensation; or they can be two structures, as shown in the attached figure. When there are two adsorption beds, the two adsorption beds alternate between desorption and adsorption. At this time, the adsorption time and desorption time are approximately equal. In this case, two structures can be used as the evaporator and condenser, respectively.

[0126] The adsorption bed has heat exchange channels for heat exchange with the adsorbent in the adsorption chamber. These heat exchange channels are designed to allow the flow of a high-temperature fluid (heat source fluid) during the desorption phase. During the adsorption phase, these channels can be closed or used to allow the flow of a low-temperature fluid. The heat exchange channels exchange heat with the adsorbent, ensuring that during the desorption phase, a high-temperature fluid flows through them, keeping the entire adsorption chamber at a high temperature. After absorbing heat, the adsorbent desorbs a gaseous working fluid, which absorbs heat from the high-temperature fluid in the heat exchange channels. This gaseous working fluid can be discharged to the outside or into the condenser's condensation chamber, where it is condensed back into a gaseous state.

[0127] The control valve is typically a three-way valve, used to alternately introduce the adsorption heat exchange fluid and the desorption heat exchange fluid. Alternatively, multiple three-way valves can be installed to correspond to multiple adsorption beds, allowing the adsorption heat exchange fluid and the desorption heat exchange fluid to be alternately introduced into each adsorption bed.

[0128] Furthermore, the controller can determine whether to execute the monitoring method for the adsorption refrigeration system based on the detection values ​​of the first and third temperature sensors. This monitoring helps prevent the return temperatures of the cooling fluid and refrigerant fluid from becoming too low or too high, thus effectively improving monitoring performance.

[0129] Based on the adsorption refrigeration system monitoring method provided in the above embodiments, the present invention also provides a computer-readable storage medium for storing a computer program, which, when executed by a processor, implements any one of the adsorption refrigeration system monitoring methods in the above embodiments. Since this computer-readable storage medium employs the adsorption refrigeration system monitoring method in the above embodiments, the beneficial effects of this computer-readable storage medium are explained in the above embodiments.

[0130] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0131] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A monitoring method for an adsorption refrigeration system, characterized in that, Includes the following steps: Connect the heat exchange chamber of the first heat exchanger to the adsorption chamber of the adsorption bed; Obtain the first inlet fluid temperature and the first outlet fluid temperature of the heat exchange fluid channel of the first heat exchanger; Perform the first output step: when the difference between the first inlet fluid temperature and the first outlet fluid temperature is less than a first preset value, output the first output result, wherein the first output result represents the completion of the current stage of the adsorption bed.

2. The monitoring method for the adsorption refrigeration system according to claim 1, characterized in that, It also includes the following steps: The heat exchange chamber of the second heat exchanger is connected to the adsorption chamber of the adsorption bed. The first heat exchanger is a condenser and the second heat exchanger is an evaporator. Obtain the second inlet fluid temperature and the second outlet fluid temperature of the heat exchange fluid channel of the second heat exchanger; Perform the second output step: when the difference between the second inlet fluid temperature and the second outlet fluid temperature is less than a second preset value, output a second output result, wherein the second output result indicates that the current stage of the adsorption bed has been completed.

3. The monitoring method for the adsorption refrigeration system according to claim 2, characterized in that, After outputting the first output result, and before connecting the heat exchange chamber of the second heat exchanger to the adsorption chamber of the adsorption bed, the following steps are also included: Stop supplying the desorption heat exchange fluid to the adsorption bed and disconnect the adsorption chamber of the adsorption bed from the heat exchange chamber of the first heat exchanger; Heat exchange fluid for adsorption is supplied to the adsorption bed.

4. The monitoring method for the adsorption refrigeration system according to claim 3, characterized in that, After outputting the second output result, the following steps are also included: Stop supplying the adsorption heat exchange fluid to the adsorption bed and disconnect the adsorption chamber of the adsorption bed from the heat exchange chamber of the second heat exchanger; Desorption heat exchange fluid is supplied to the adsorption bed; Returning to the previous section, the heat exchange chamber of the first heat exchanger is connected to the adsorption chamber of the adsorption bed.

5. The monitoring method for the adsorption refrigeration system according to claim 4, characterized in that, The execution time of the first output step is: the time point after extending the initial time point from the initial time point when the heat exchange chamber of the first heat exchanger is connected to the adsorption chamber of the adsorption bed by a first predetermined time period.

6. The monitoring method for the adsorption refrigeration system according to claim 5, characterized in that, The execution time of the second output step is: the time point after extending the second predetermined time from the initial time point when the heat exchange chamber of the second heat exchanger is connected to the adsorption chamber of the adsorption bed.

7. An adsorption refrigeration system, comprising a first heat exchanger, a second heat exchanger, a control valve, and an adsorption bed, characterized in that, The system also includes a controller, wherein the inlet of the heat exchange fluid channel of the first heat exchanger is provided with a first temperature sensor and the outlet is provided with a second temperature sensor, and the inlet of the heat exchange fluid channel of the second heat exchanger is provided with a third temperature sensor and the outlet is provided with a fourth temperature sensor. The controller is used to execute the acquired computer program to implement the monitoring method of the adsorption refrigeration system as described in any one of claims 1 to 6.

8. The adsorption refrigeration system according to claim 7, characterized in that, The controller can determine whether to execute the monitoring method of the adsorption refrigeration system based on the detection values ​​of the first temperature sensor and the third temperature sensor.

9. A computer-readable storage medium, characterized in that, Used to store a computer program, which, when executed by a processor, implements the monitoring method for the adsorption refrigeration system as described in any one of claims 1 to 6.

10. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instruction is executed by the processor, it implements the monitoring method of the adsorption refrigeration system according to any one of claims 1 to 6.

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