Air conditioning system

Abstract

The utility model provides an air conditioning system. The air conditioning system comprises an energy storage air conditioning box, a heat supply device and an auxiliary heat supply pipeline, the energy storage air conditioning box comprises a three-medium heat exchanger, the three-medium heat exchanger comprises a first medium channel, a second medium channel and a third medium channel, and the first medium channel communicates with a heat source output port of the heat supply device through the auxiliary heat supply pipeline; the second medium channel is provided with a phase-change material, the airflow channel part of the energy storage air conditioning cabinet forms a third medium channel, an input port of the airflow channel is communicated with a space where to-be-treated gas is located, and an output port of the airflow channel is communicated with a to-be-adjusted space. According to the heat supply device, the heat supply device can provide a heat source for the three-medium heat exchanger through the heat supply pipeline and exchanges heat with the phase-change material in the three-medium heat exchanger so as to store energy for the phase-change material, and then when needed, the phase-change material releases energy so as to heat gas in the third medium channel, and then temperature adjustment of the space to be adjusted is assisted.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioning, and in particular to an air conditioning system. Background Art

[0002] Air conditioning systems play a vital role in people's lives and work. With the continuous advancement of technology, the performance and functionality of air conditioning systems will continue to improve, providing people with a more comfortable, efficient, energy-efficient, and environmentally friendly indoor environment. Currently, air conditioning systems typically rely on electricity to directly drive compressors for cooling or heating. This approach consumes a lot of energy and can overload the grid during peak hours. Utility Model Content

[0003] In view of this, in order to solve the technical problems in the prior art of high energy consumption and the possibility of excessive load on the power grid in peak power scenarios, the present disclosure provides an air-conditioning system.

[0004] According to a first aspect of an embodiment of the present disclosure, an air-conditioning system is provided, which includes an energy storage air-conditioning box, a heating device and an auxiliary heating pipeline. The energy storage air-conditioning box includes a three-medium heat exchanger, and the three-medium heat exchanger includes a first medium channel, a second medium channel and a third medium channel. The first medium channel is connected to the heat source output port of the heating device through the auxiliary heating pipeline, and the second medium channel is provided with a phase change material. Part of the air flow channel of the energy storage air-conditioning box constitutes the third medium channel, and the input port of the air flow channel is connected to the space where the gas to be treated is located, and the output port of the air flow channel is connected to the space to be adjusted.

[0005] In an optional embodiment, the air-conditioning system includes a first control pump and a control device, the first control pump is located in the auxiliary heating pipeline, the control device is electrically connected to the first control pump, and the control device is configured to control the on and off of the auxiliary heating pipeline through the first control pump based on the power usage scenario of the heating device and / or the temperature of the phase change material in the three-medium heat exchanger.

[0006] In an optional embodiment, the control device is configured to at least one of the following:

[0007] When the electricity consumption scenario is a valley electricity scenario and the temperature of the three-medium heat exchanger is greater than a set temperature threshold, controlling the auxiliary heating pipeline to be in an on state or an off state;

[0008] When the electricity usage scenario is the electricity valley scenario and the temperature of the three-medium heat exchanger is lower than the set temperature threshold, controlling the auxiliary heating pipeline to be in a conducting state;

[0009] When the electricity consumption scenario is a peak electricity consumption scenario, the auxiliary heating pipeline is controlled to be in a closed state.

[0010] In an optional embodiment, the three-medium heat exchanger includes at least one temperature detection device, which is electrically connected to the control device and is used to detect the temperature of the phase change material in the three-medium heat exchanger.

[0011] In an optional embodiment, the air conditioning system includes a main heat supply pipeline, and the heat source channel of the energy storage air conditioning box is connected to the heat source output port of the heating device through the main heat supply pipeline;

[0012] The air-conditioning system includes a second control pump and a control device. The second control pump is located in the main heating pipeline. The control device is electrically connected to the second control pump. The control device is configured to control the main heating pipeline through the second control pump based on the power usage scenario of the heating device and / or the temperature of the phase change material in the three-medium heat exchanger.

[0013] In an optional embodiment, the control device is configured to at least one of the following:

[0014] When the electricity usage scenario is a valley electricity scenario, controlling the main heating pipeline to be in a conducting state;

[0015] When the electricity consumption scenario is a peak scenario and the temperature of the three-medium heat exchanger is greater than a set temperature threshold, controlling the main heating pipeline to be in a shut-off state;

[0016] When the electricity consumption scenario is the peak electricity scenario and the temperature of the three-medium heat exchanger is lower than the set temperature threshold, the main heating pipeline is controlled to be in a conducting state.

[0017] In an optional embodiment, the air-conditioning system includes a third control pump, the heating device includes an air-cooled heat pump, the main heating pipeline is connected to the heat source output port of the heating device through the third control pump, the control device is electrically connected to the third control pump, and the control device is configured to control the opening of the third control pump based on the temperature of the space to be regulated when the auxiliary heating pipeline is in a conducting state and the temperature fluctuation of the space to be regulated is within a preset range.

[0018] In an optional embodiment, the heat supply device includes at least one of the following devices:

[0019] Compressed air heat recovery unit, air-cooled heat pump, medium temperature heat recovery chiller.

[0020] In an optional embodiment, the air conditioning system includes at least one fan filter assembly, and the output port of the air flow channel is connected to the space to be conditioned through the at least one fan filter assembly.

[0021] In an optional embodiment, the heating device includes a medium-temperature heat recovery chiller, the air-conditioning system includes a cooling tower and a dry cooling coil, the cooling tower is connected to the medium-temperature heat recovery chiller, the medium-temperature heat recovery chiller is connected to the dry cooling coil, and the dry cooling coil is used to provide refrigeration gas for the space to be conditioned.

[0022] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the energy storage air-conditioning box of the present disclosure has a new three-medium heat exchanger, and has a new auxiliary heating pipeline that cooperates with the three-medium heat exchanger in the air-conditioning system, which is used to connect the first medium channel of the three-medium heat exchanger with the heat source output port of the heating device, and the second medium channel of the three-medium heat exchanger is provided with a phase change material, and part of the air flow channel of the energy storage air-conditioning box constitutes the third medium channel of the three-medium heat exchanger, and the input port of the air flow channel is connected to the space where the gas to be treated is located, and the output port of the air flow channel is connected to the space to be regulated. In the present disclosure, the heating device can provide a heat source for the three-medium heat exchanger through the heating pipeline, and exchange heat with the phase change material in the three-medium heat exchanger, thereby storing energy for the phase change material, and then, when needed, release energy through the phase change material, thereby heating the gas in the third medium channel, thereby assisting in temperature regulation of the space to be regulated.

[0023] In the disclosed air conditioning system, during electricity valleys, a heating device can store energy in the phase change material. During electricity peaks, the phase change material releases energy to assist in regulating the temperature of the space being conditioned. This can address the mismatch between the thermal energy supply source and the thermal energy load, achieve flexible energy transmission and distribution, enhance the stability and reliability of system operation under energy-load uncertainty, improve energy efficiency, and achieve peak-shaving and valley-filling of electricity, reducing dependence on electricity.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0028] Figure 1 is a schematic diagram of an air-conditioning system according to an exemplary embodiment.

[0029] Figure 2 is a partial schematic diagram of an air-conditioning system according to an exemplary embodiment.

[0030] Figure 3 is a schematic diagram of an air conditioning system according to another exemplary embodiment.

[0031] Reference numerals:

[0032] 11. Energy storage air conditioning box; 111. Three-medium heat exchanger;

[0033] 21. Heating device; 211. Air-cooled heat pump; 212. Air-compressed heat recovery device; 213. Medium-temperature heat recovery chiller;

[0034] 31. Auxiliary heating pipeline; 32. Main heating pipeline;

[0035] 40. Shared pipelines;

[0036] 51. First control pump; 52. Second control pump; 53. Third control pump; 54. Fourth control pump; 55. Fifth control pump;

[0037] 60. Fan filter unit;

[0038] 70. Dry cooling coil;

[0039] 80. Cooling tower. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0042] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. Therefore, the illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0044] The following will describe the embodiments of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand the other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for the purpose of illustrating the present application and are not intended to limit the scope of protection of the present application.

[0045] In order to solve the technical problems in the prior art of high energy consumption and the possibility of excessive load on the power grid in peak power scenarios, the present disclosure provides an air-conditioning system.

[0046] Among them, the energy storage air-conditioning box disclosed in the present invention has added a three-medium heat exchanger, and has added an auxiliary heating pipeline that cooperates with the three-medium heat exchanger to the air-conditioning system, which is used to connect the first medium channel of the three-medium heat exchanger with the heat source output port of the heating device, and the second medium channel of the three-medium heat exchanger is provided with a phase change material, and part of the air flow channel of the energy storage air-conditioning box constitutes the third medium channel of the three-medium heat exchanger, and the input port of the air flow channel is connected to the space where the gas to be treated is located, and the output port of the air flow channel is connected to the space to be regulated. In the present disclosure, the heating device can provide a heat source for the three-medium heat exchanger through the heating pipeline, and exchange heat with the phase change material in the three-medium heat exchanger, thereby storing energy for the phase change material, and then, when needed, release energy through the phase change material, thereby heating the gas in the third medium channel, thereby assisting in temperature regulation of the space to be regulated.

[0047] In the disclosed air conditioning system, during electricity valleys, a heating device can store energy in the phase change material. During electricity peaks, the phase change material releases energy to assist in regulating the temperature of the space being conditioned. This can address the mismatch between the thermal energy supply source and the thermal energy load, achieve flexible energy transmission and distribution, enhance the stability and reliability of system operation under energy-load uncertainty, improve energy efficiency, and achieve peak-shaving and valley-filling of electricity, reducing dependence on electricity.

[0048] In one exemplary embodiment, reference Figures 1 to 3 As shown, an air conditioning system is provided. The air conditioning system may include an energy storage air conditioning box 11 and a heating device 21. The energy storage air conditioning box 11 may be a combined outdoor air conditioning box or other types of energy storage air conditioning boxes 11, which are not limited to this.

[0049] It should be noted that a modular outdoor air conditioning unit (MAU) is typically composed of a fan, cooling coil, heating coil (or electric heating), air filters (primary, intermediate, and advanced), and a humidifier. After primary and intermediate efficiency filtration, preheating, enthalpy reduction, dehumidification, reheating, and high-efficiency filtration, the air is then delivered to the return air layer. The MAU provides constant temperature, humidity, and positive pressure within the laboratory, providing clean, triple-filtered air.

[0050] The input port of the air flow channel of the energy storage air conditioning box 11 is connected to the space where the gas to be processed is located, and the output port of the air flow channel is connected to the space to be regulated.

[0051] In related art, the energy storage AC unit 11 may include a main heating pipeline 32, which is connected to the heat source output port of the heating device 21 via the main heating pipeline 32. In heating mode, the heating device 21 converts electrical energy into thermal energy and provides thermal energy to the energy storage AC unit 11 via the main heating pipeline 32. The thermal energy provided by the heating device 21 heats the gas in the airflow channel of the energy storage AC unit 11, which is then transported to the space to be conditioned, thereby heating the space. This related art has high energy consumption and cannot solve the technical problem of excessive grid load during peak power consumption scenarios.

[0052] In this embodiment, an auxiliary heat supply pipeline 31 is newly added, and the energy storage air conditioning box 11 may include a three-medium heat exchanger 111. The three-medium heat exchanger 111 includes a first medium channel, a second medium channel, and a third medium channel. The first medium channel is connected to the heat source output port of the heating device 21 through the auxiliary heat supply pipeline 31. The second medium channel is provided with a phase change material. Part of the airflow channel of the energy storage air conditioning box 11 constitutes the third medium channel.

[0053] The heating device 21 can provide a heat source for the three-medium heat exchanger 111 through the heating pipeline, and exchange heat with the phase change material in the three-medium heat exchanger 111, thereby storing energy for the phase change material. Then, when needed, the energy is released through the phase change material to heat the gas in the third medium channel, thereby assisting in temperature regulation of the space to be regulated.

[0054] The auxiliary heating pipeline 31 can be controlled to be on and off based on the electricity usage scenario of the heating device 21 and / or the temperature of the phase change material in the three-medium heat exchanger 111, thereby controlling the energy storage timing of the phase change material.

[0055] When the electricity consumption scenario is an electricity valley scenario and the temperature of the three-medium heat exchanger 111 is greater than the set temperature threshold, the auxiliary heating pipeline 31 is controlled to be in an on state or an off state. It should be noted that if the temperature of the three-medium heat exchanger 111 is greater than the set temperature threshold, it means that the energy storage state of the phase change material is better at this time, and the auxiliary heating pipeline 31 can be controlled to be in an on state or an off state according to actual needs. For example, if the temperature of the current space to be adjusted is already relatively suitable, and it is expected that a large amount of heat energy will not be needed in the future, the auxiliary heating pipeline 31 can be controlled to be shut down to avoid excessive energy storage; if it is expected that there will be a large demand for temperature adjustment in the future, the auxiliary heating pipeline 31 can be kept on to continue to store energy for the phase change material.

[0056] When the electricity usage scenario is valley power and the temperature of the three-medium heat exchanger 111 is below the set temperature threshold, the auxiliary heat supply pipeline 31 is controlled to be in an open state. It should be noted that if the temperature of the three-medium heat exchanger 111 is below the set temperature threshold, it indicates that the energy storage of the phase change material is insufficient. In this case, the auxiliary heat supply pipeline 31 is controlled to be in an open state to ensure that the heating device 21 can provide a heat source to the three-medium heat exchanger 111 through the auxiliary heat supply pipeline 31, thereby storing energy for the phase change material.

[0057] During peak hours, auxiliary heating pipe 31 is shut off. It should be noted that during peak hours, auxiliary heating pipe 31 is shut off to reduce energy consumption and grid load. During these times, the energy released by the phase change material assists in regulating the temperature of the space being conditioned.

[0058] Among them, the judgment of peak and valley scenarios can be made based on the peak and valley periods announced by the power company. Power companies usually divide peak and valley periods according to local electricity consumption and announce them to users. For example, in some areas, the peak electricity consumption period during the day (such as 9 am to 5 pm) is defined as the peak electricity scenario, while the low electricity consumption period at night (such as 10 pm to 6 am the next day) is defined as the valley electricity scenario.

[0059] The control device of the air-conditioning system can pre-set these peak and valley periods, and then obtain the current time through the clock module, and compare it with the preset peak and valley periods to determine whether it is currently in a peak electricity scene or a valley electricity scene.

[0060] Furthermore, peak and off-peak periods may vary depending on the season and weekdays / holidays. For example, in the summer, due to increased use of appliances like air conditioners, peak periods (i.e., peak scenarios) may be extended. On weekends and holidays, due to reduced industrial electricity use, off-peak periods (i.e., off-peak scenarios) may be extended. The control device can appropriately adjust the preset peak and off-peak periods based on the season and weekdays / holidays to improve the accuracy of its judgment.

[0061] In addition, in this embodiment, the total power consumption of the power grid can also be monitored in real time using smart meters or other monitoring devices connected to the power grid. When the total power consumption of the power grid exceeds a certain threshold, it is determined to be a peak power scenario; when the total power consumption of the power grid is below a certain threshold, it is determined to be a valley power scenario. These thresholds can be set according to actual conditions, and their specific values are not limited.

[0062] In addition, some regions implement a time-of-use electricity pricing system, with higher prices during peak hours and lower prices during off-peak hours. The air conditioning system's control device can obtain real-time electricity price information through a communication interface with the power company. When the electricity price exceeds a certain threshold, it is considered a peak-hour operation; when the electricity price falls below a certain threshold, it is considered an off-peak operation.

[0063] It should be noted that, in addition to the above-mentioned method for determining the valley power scenario and the peak power scenario, other methods may also be used, and this is not limited.

[0064] In this air-conditioning system, through the above-mentioned control method, it is possible to reasonably store energy for the phase change material according to the actual situation in the valley scene, while avoiding energy waste caused by excessive energy storage. In the valley scene, the phase change material can be stored with energy by the heating device 21. In the peak scene, the phase change material releases energy to assist in regulating the temperature of the space to be regulated, thereby reducing energy consumption and solving the technical problem that the grid may be overloaded in the peak scene. This embodiment can solve the problem of a mismatch between the supply source of thermal energy and the load of thermal energy use, realize flexible transmission and distribution of energy, improve the stability and reliability of system operation under energy-load uncertainty, improve energy efficiency, and realize peak shaving and valley filling of electric energy, reducing dependence on electric energy.

[0065] In one exemplary embodiment, reference Figures 1 to 3 As shown, an air conditioning system is provided.

[0066] The air conditioning system may include a first control pump 51 and a control device. The first control pump 51 is located in the auxiliary heating pipeline 31, and the control device is electrically connected to the first control pump 51. The control device is configured to control the auxiliary heating pipeline 31 through the first control pump 51 based on the power usage scenario of the heating device 21 and / or the temperature of the phase change material in the three-medium heat exchanger 111.

[0067] When the control device controls the first control pump 51 to be turned on, the auxiliary heat supply pipeline 31 is connected. When the control device controls the first control pump 51 to be turned off, the auxiliary heat supply pipeline 31 is shut off.

[0068] In this embodiment, when the heating device 21 is in a valley power scenario and the temperature of the three-medium heat exchanger 111 is greater than a set temperature threshold, the control device can make a decision based on actual demand. If further energy storage is not required or sufficient heat energy is expected to be available in the near future, the first control pump 51 can be turned on, shutting off the auxiliary heating pipeline 31 to prevent excessive energy storage. Conversely, if further energy storage is required, the first control pump 51 remains off, leaving the auxiliary heating pipeline 31 open.

[0069] When the electricity usage scenario is off-peak and the temperature of the three-medium heat exchanger 111 is below the set temperature threshold, the control device controls the first control pump 51 to remain off, leaving the auxiliary heating pipeline 31 conductive, ensuring that the heating device 21 can store energy for the phase change material. When the electricity usage scenario is peak, to reduce energy consumption and reduce the load on the power grid, the control device controls the first control pump 51 to turn on, shutting off the auxiliary heating pipeline 31, and relying on the phase change material to release energy to assist in regulating the temperature of the space to be conditioned.

[0070] This embodiment, through the coordinated action of the control device and the first control pump 51, achieves intelligent control over the on / off switching of the auxiliary heating pipeline 31. It can flexibly adjust the heating strategy based on different power usage scenarios and the temperature of the phase change material, improving energy efficiency and reducing energy consumption. This effectively addresses the potential grid overload caused by peak power consumption, achieving peak-shaving and valley-shaving of electricity, and improving the stability and reliability of the air conditioning system.

[0071] The three-medium heat exchanger 111 may include at least one temperature detection device (not shown). The temperature detection device may be a temperature sensor or other device capable of detecting temperature, without limitation. The temperature detection device is electrically connected to the control device and is used to detect the temperature of the phase change material in the three-medium heat exchanger 111.

[0072] The temperature detection device monitors the temperature of the phase change material in the three-medium heat exchanger 111 in real time and transmits the temperature data to the control device. After receiving the temperature data, the control device analyzes and processes the data. The control device makes appropriate control decisions based on the phase change material temperature data provided by the temperature detection device and the power usage scenario of the heating device 21.

[0073] For example, during a power valley, if the phase-change material temperature is below a set threshold, the control device switches auxiliary heating line 31 on, allowing heating device 21 to store energy in the phase-change material. If the phase-change material temperature exceeds the set threshold, the control device switches auxiliary heating line 31 on and off based on the actual situation. During power peaks, the control device utilizes the energy released by the phase-change material to regulate the temperature based on the phase-change material temperature and the required temperature of the space being regulated, while simultaneously switching auxiliary heating line 31 off.

[0074] It should be noted that when the air conditioning system includes multiple temperature detection devices, the temperatures detected by these multiple temperature detection devices can be averaged, and the average temperature can be used as the temperature of the three-medium heat exchanger 111. Furthermore, without affecting the operation of the heat exchanger, the more points used to detect the temperature of the three-medium heat exchanger 111 and the more temperature detection devices installed, the higher the reliability of the final temperature of the three-medium heat exchanger 111.

[0075] In this embodiment, the temperature detection device and control device work together to achieve real-time monitoring and precise control of the temperature of the phase change material in the three-medium heat exchanger 111, providing strong support for the optimized operation of the air conditioning system. This embodiment can promptly adjust the operating state of the air conditioning system based on the temperature changes of the phase change material, improving the system's stability and reliability. This helps achieve efficient energy utilization and peak load shifting of electrical energy, reducing the energy consumption of the air conditioning system and improving its energy efficiency.

[0076] In one exemplary embodiment, reference Figures 1 to 3 As shown, an air conditioning system is provided.

[0077] The air conditioning system may include a main heating supply line 32, through which the heat source channel of the energy-storage air conditioning unit 11 communicates with the heat source output port of the heating device 21. In related art, in heating mode, the heating device 21 converts electrical energy into thermal energy and provides thermal energy to the energy-storage air conditioning unit 11 via the main heating supply line 32. The thermal energy provided by the heating device 21 heats the air in the airflow channel of the energy-storage air conditioning unit 11, which is then transported to the space to be conditioned, thereby heating the space.

[0078] In this embodiment, the air conditioning system may further include a second control pump 52, which is located in the main heating pipeline 32, and the control device is electrically connected to the second control pump 52. The control device is configured to control the main heating pipeline 32 to be on and off via the second control pump 52 based on the power usage scenario of the heating device 21 and / or the temperature of the phase change material in the three-medium heat exchanger 111.

[0079] When the control device controls the second control pump 52 to be turned off, the main heat supply pipeline 32 is shut off. When the control device controls the second control pump 52 to be turned on, the main heat supply pipeline 32 is conducted.

[0080] Among them, when the electricity consumption scenario is a valley electricity scenario, the second control pump 52 is controlled to be turned on, and the main heating pipeline 32 is in a conductive state. At this time, the heating device 21 provides heat energy to the energy storage air-conditioning box 11 through the main heating pipeline 32 to heat the indoor space, so as to make full use of the low electricity price and relatively low grid load during the valley electricity period.

[0081] At the same time, if the temperature of the three-medium heat exchanger 111 is greater than the set temperature threshold, it indicates that the phase change material is in a good energy storage state. The auxiliary heating pipeline 31 can be controlled to be turned on or off according to actual needs. For example, if the current temperature of the space to be regulated is already relatively suitable and it is expected that a large amount of heat energy will not be required in the near future, the auxiliary heating pipeline 31 can be controlled to be turned off to avoid excessive energy storage. If a large demand for temperature regulation is expected in the future, the auxiliary heating pipeline 31 can be kept on to continue storing energy for the phase change material.

[0082] In addition, if the temperature of the three-medium heat exchanger 111 is lower than the set temperature threshold, it indicates that the energy storage of the phase change material is insufficient. At this time, the auxiliary heat supply pipeline 31 is controlled to be in a conducting state to ensure that the heating device 21 can provide a heat source for the three-medium heat exchanger 111 through the auxiliary heat supply pipeline 31 to store energy for the phase change material.

[0083] During peak power usage, the control device further determines the temperature of the three-medium heat exchanger 111. If the temperature of the three-medium heat exchanger 111 exceeds the set temperature threshold, it indicates that the phase change material has sufficient energy storage to meet temperature regulation requirements for a certain period of time. At this point, the second control pump 52 is shut down, thereby shutting off the main heating pipeline 32, reducing reliance on the heating device 21 and lowering the grid load.

[0084] If the temperature of the three-medium heat exchanger 111 is below the set temperature threshold during peak power usage, this indicates insufficient energy stored in the phase change material to meet indoor temperature control requirements. In this case, the second control pump 52 is activated to maintain a conductive state in the main heating pipeline 32, allowing the heating device 21 to provide heat to the energy-storage air conditioning unit 11, ensuring a stable indoor temperature.

[0085] This embodiment achieves optimized operation of the air conditioning system under different electricity usage scenarios through intelligent control of the main heating pipeline 32. During off-peak hours, it fully utilizes low electricity prices to store energy and reduce operating costs. During peak hours, the main heating pipeline 32 is properly controlled based on the temperature of the phase change material, reducing pressure on the power grid and improving energy efficiency. This embodiment improves the stability and reliability of the air conditioning system, ensuring that the indoor temperature remains within a comfortable range and providing users with a good indoor environment.

[0086] In one exemplary embodiment, reference Figures 1 to 3 As shown, an air conditioning system is provided.

[0087] The heating device 21 of the air-conditioning system may include at least one of the following devices:

[0088] Air compression heat recovery device 212, air-cooled heat pump 211, medium-temperature heat recovery chiller 213.

[0089] That is to say, the heating device 21 may include only one of the above three devices, or any two of the above three devices, or all three devices at the same time, and there is no limitation on this.

[0090] Among them, when the heating device 21 includes an air-cooled heat pump 211, the air-conditioning system may include a third control pump 53, the main heating pipeline 32 is connected to the heat source output port of the heating device 21 through the third control pump 53, and the control device is electrically connected to the third control pump 53.

[0091] The control device may be configured to control the opening degree of the third control pump 53 based on the temperature of the space to be conditioned when the auxiliary heating pipeline 31 is in an on state and the temperature fluctuation of the space to be conditioned is within a preset range.

[0092] It should be noted that since it is relatively difficult to control the heat supply of the air-compressed heat recovery device 212 and the medium-temperature heat recovery chiller 213, this embodiment can more accurately realize the energy storage of the three-medium heat exchanger 111 by controlling the air-cooled heat pump 211, thereby better adjusting the temperature of the space to be adjusted.

[0093] When the temperature fluctuation difference of the conditioned space reaches a preset range, the temperature sensor detects this value, and the three-medium heat exchanger 111 adjusts the heat flow to the fluctuation, thereby achieving a stable outlet air temperature. Simultaneously, the auxiliary heat dissipation pipeline is controlled to be in a conductive state, and the opening of the third control pump 53 is controlled according to the temperature of the conditioned space, thereby adjusting the heat supply from the air-cooled heat pump 211 to the three-medium heat exchanger 111, thereby more accurately regulating the temperature of the conditioned space through the three-medium heat exchanger 111.

[0094] In one exemplary embodiment, reference Figures 1 to 3 As shown, an air conditioning system is provided. The air conditioning system may include an energy storage air conditioning box 11 and a heating device 21. The energy storage air conditioning box 11 may be a combined outdoor air conditioning box.

[0095] The input port of the air flow channel of the energy storage air conditioning box 11 is communicated with the space where the gas to be processed is located, and the output port of the air flow channel is communicated with the space to be regulated.

[0096] The air conditioning system may include a main heat supply line 32, through which the heat source channel of the energy storage air conditioning unit 11 communicates with the heat source output port of the heating device 21. The air conditioning system may also include a second control pump 52, located in the main heat supply line 32, and the control device is electrically connected to the second control pump 52. The control device is configured to control the main heat supply line 32 via the second control pump 52 based on the power usage scenario of the heating device 21 and / or the temperature of the phase change material in the three-medium heat exchanger 111.

[0097] The air conditioning system in this embodiment can be newly equipped with an auxiliary heat supply pipeline 31, and the energy storage air conditioning box 11 can include a three-medium heat exchanger 111. The three-medium heat exchanger 111 includes a first medium channel, a second medium channel, and a third medium channel. The first medium channel is connected to the heat source output port of the heating device 21 via the auxiliary heat supply pipeline 31. The second medium channel is provided with a phase change material. Part of the airflow channel of the energy storage air conditioning box 11 constitutes the third medium channel.

[0098] The heating device 21 can provide a heat source for the three-medium heat exchanger 111 through the heating pipeline, and exchange heat with the phase change material in the three-medium heat exchanger 111, thereby storing energy for the phase change material. Then, when needed, the energy is released through the phase change material to heat the gas in the third medium channel, thereby assisting in temperature regulation of the space to be regulated.

[0099] The auxiliary heating pipeline 31 can be controlled to be on and off based on the electricity usage scenario of the heating device 21 and / or the temperature of the phase change material in the three-medium heat exchanger 111, thereby controlling the energy storage timing of the phase change material.

[0100] The air conditioning system may include a first control pump 51 and a control device. The first control pump 51 is located in the auxiliary heating pipeline 31, and the control device is electrically connected to the first control pump 51. The control device is configured to control the auxiliary heating pipeline 31 through the first control pump 51 based on the power usage scenario of the heating device 21 and / or the temperature of the phase change material in the three-medium heat exchanger 111.

[0101] The three-medium heat exchanger 111 may include at least one temperature detection device, which may be a temperature sensor or other device capable of detecting temperature, without limitation. The temperature detection device is electrically connected to the control device and is used to detect the temperature of the phase change material in the three-medium heat exchanger 111.

[0102] The heating device 21 may include an air-compressed heat recovery device 212, an air-cooled heat pump 211, and a medium-temperature heat recovery chiller 213. The air conditioning system may include a third control pump 53, a fourth control pump 54, and a fifth control pump 55. The main heating pipeline 32 and the auxiliary heating pipeline 31 may share a common pipeline 40. The air-cooled heat pump 211 is connected to the common pipeline 40 via the third control pump 53, the air-compressed heat recovery device 212 is connected to the common pipeline 40 via the fourth control pump 54, and the medium-temperature heat recovery chiller 213 is connected to the common pipeline 40 via the fifth control pump 55.

[0103] The control device is electrically connected to the third control pump 53. When the auxiliary heating pipeline 31 is in the conducting state, if the temperature fluctuation of the conditioned space is within a preset range, the control device can control the opening of the third control pump 53 based on the temperature of the conditioned space.

[0104] It should be noted that the overall structure of the three-medium heat exchanger 111 in this embodiment is a combination of a shell-and-tube heat exchanger and fins. The innermost tube forms the first medium channel, which contains hot water. The channel within the outer tube constitutes the second medium channel, which can be a material with high specific heat capacity and high phase transition temperature, used to store and release thermal energy. The third medium is air, located in the third medium channel. This three-medium heat exchanger 111 can distribute energy storage in the reheat section of the MAU. By intelligently controlling different operating modes, this air conditioning system ensures stable operation between the system's heat source and heat load, and enables efficient and economical energy utilization.

[0105] Temperature detection points can be set within the three-medium heat exchanger for installing temperature sensors. It should be noted that as long as the operation of the three-medium heat exchanger 111 is not affected, the more temperature detection points are set, the better. The air conditioning system uses temperature data fed back by the temperature sensors to monitor the energy storage state of the phase change material in real time.

[0106] Assume that the set temperature threshold of the phase change process is T (in degrees Celsius), that is, the temperature threshold at which the phase change material undergoes a phase change process is T, which is a temperature threshold determined by the phase change material itself. This embodiment requires monitoring the temperature of the phase change material (also referred to as the temperature of the three-medium heat exchanger 111). When the temperature of the phase change material is detected to be greater than T (the temperature of the phase change material at this time can be recorded as t1), it indicates that the three-medium heat exchanger 111 has completed energy storage. When the temperature of the phase change material is detected to be less than T (the temperature of the phase change material at this time can be recorded as t2), it indicates that the three-medium heat exchanger 111 has completed energy release. When the temperature of the phase change material is at T, it indicates that the phase change material is undergoing a phase change, that is, it is storing or releasing energy.

[0107] In this embodiment, when the air conditioning system is initially started, the system can operate normally. The first control pump 51, the second control pump 52, the third control pump 53, the fourth control pump 54, and the fifth control pump 55 can be turned on simultaneously. The air-cooled heat pump 211, the compressed air heat recovery device 212, and the medium-temperature heat recovery chiller 213 can simultaneously supply heat to the three-medium heat exchanger 111. When the temperature t1 of the three-medium heat exchanger (i.e., the temperature of the phase change material in the three-medium heat exchanger 111) is detected to be greater than T, the three-medium heat exchanger 111 completes energy storage, the first control pump 51 can be controlled to be turned off, and the compressed air heat recovery device 212, the air-cooled heat pump 211, and the medium-temperature heat recovery chiller 213 no longer supply heat to the three-medium heat exchanger 111.

[0108] In this embodiment, when the power is in a valley, the air conditioning system's control device can control the activation of both the first control pump 51 and the second control pump 52. Then, based on the desired environmental conditions of the space to be conditioned (e.g., indoors), it determines whether to activate the air-compressed heat recovery device 212, the air-cooled heat pump 211, and the medium-temperature heat recovery chiller 213. This allows the system to heat the room while simultaneously storing heat in the three-medium heat exchanger 111. It should be noted that, since the power is currently in a valley, storing energy in the three-medium heat exchanger 111 allows for more efficient and effective utilization of electrical energy.

[0109] During peak hours, if the temperature t1 of the three-medium heat exchanger 111 is greater than T, the first, second, third, fourth, and fifth control pumps 51, 52, 53, 54, and 55 can all be shut down, discharging the three-medium heat exchanger 111. The fresh air temperature of the MAU is then independently regulated by the three-medium heat exchanger 111. When the temperature t2 of the three-medium heat exchanger 111 is detected to be less than T, the three-medium heat exchanger 111 completes discharging. At this point, the states of the compressed air heat recovery unit 212, the air-cooled heat pump 211, and the medium-temperature heat recovery chiller 213 can be determined based on the desired indoor environmental conditions. When the desired indoor environmental conditions indicate continued heating is necessary, the compressed air heat recovery unit 212, the air-cooled heat pump 211, and the medium-temperature heat recovery chiller 213 can be turned on to provide indoor heating. It should be noted that, since the current power peak scenario is in progress, the first control pump 51 may be controlled to be turned off to prevent the three-medium heat exchanger 111 from consuming electricity in the power peak scenario, thereby saving electricity energy.

[0110] In this embodiment, when the indoor ambient temperature fluctuates within a preset range, the three-medium heat exchanger 111 intelligently releases heat based on the indoor temperature changes, thereby better ensuring indoor temperature requirements. Simultaneously, the first and third control pumps 51, 53 are activated, and the opening degree of the third control pump 53 is adjusted accordingly, precisely controlling the heat supply to the three-medium heat exchanger 111 and thus ensuring automatic regulation of the indoor ambient temperature.

[0111] In addition, when the air-conditioning system suddenly loses power, or when the compressed air heat recovery device 212, the air-cooled heat pump 211 and the medium-temperature heat recovery chiller 213 suddenly fail, the three-medium heat exchanger 111 of the air-conditioning system serves as the last guarantee of heating, ensuring indoor demand for a certain period of time.

[0112] When the heating device 21 needs to be activated, the number of the compressed air heat recovery device 212, the air-cooled heat pump 211, and the medium-temperature heat recovery chiller 213 activated can be controlled according to actual demand. For example, if the indoor heat demand is high, the compressed air heat recovery device 212, the air-cooled heat pump 211, and the medium-temperature heat recovery chiller 213 can all be activated; if the indoor heat demand is low, only one or two of these devices can be activated, without limitation.

[0113] The air conditioning system may also include an FFU (Fan Filter Unit), or fan filter unit (FFU) 60. This unit combines a fan and a filter (a high-efficiency air filter (HEPA) or ultra-high-efficiency air filter (ULPA)) to form a self-powered, terminal air purification device. Specifically, it is a modular, self-powered, filtering terminal air delivery device. The fan draws air in from the top of the FFU and filters it through the HEPA filter. The filtered, clean air is then evenly delivered across the entire outlet at a speed of 0.45 m / s ± 20%.

[0114] The number of fan-filter units 60 can be determined based on actual needs and is not limited thereto. For example, the air conditioning system may include three fan-filter units 60 to better ensure the intake air volume. The exhaust gas from the energy storage air conditioning box 11 can enter the room through the fan-filter units 60 to better ensure comfortable air supply.

[0115] In addition, it should be noted that the medium-temperature heat recovery chiller 213 can be used not only for heating but also for cooling. The air conditioning system may also include a cooling tower 80 and a dry cooling coil 70 (DCC) that cooperate with the medium-temperature heat recovery chiller 213. The cooling tower 80 can store cold water. The cooling tower 80 is connected to the medium-temperature heat recovery chiller 213, and the medium-temperature heat recovery chiller 213 is connected to the dry cooling coil 70. The cooling tower 80 can provide low-temperature cold water to the dry cooling coil 70 through the medium-temperature heat recovery chiller 213. When the room needs to be cooled, the outdoor air is cooled by the dry cooling coil 70 and then enters the room through the fan filter unit 60, thereby providing cooling air for the room.

[0116] In this embodiment, the settings can be initialized before using the air-conditioning system, that is, the operating parameters of the system can be set according to user needs and indoor and outdoor environmental conditions. And the operating mode selected by the system can be controlled according to the temperature difference between indoor and outdoor (the operating mode may include heating mode and cooling mode, for example). In heating mode, when the indoor temperature is lower than the set demand value, if the phase change material completes energy storage, the phase change material can be used to release energy, and the air is heated through the three-medium heat exchanger 111 to provide hot air for the room. In addition, the control device of the air-conditioning system can monitor the indoor temperature in real time, and adjust the power and operating time of the heating device 21 according to the temperature difference. It should be noted that during the operation of the air-conditioning system, the control algorithm can be continuously optimized by collecting its operating data to improve the energy efficiency and stability of the system.

[0117] In this embodiment, the traditional water tank in the computer room can be eliminated to solve the problems of long water tank transmission and distribution distance and occupied computer room space. In addition, in this embodiment, in the case of an electricity valley scenario, the heating device 21 can be used to store energy for the phase change material. In the case of an electricity peak scenario, the phase change material releases energy to assist in regulating the temperature of the space to be regulated. This embodiment can solve the problem of a mismatch between the supply source of thermal energy and the load using thermal energy, realize flexible transmission and distribution of energy, improve the stability and reliability of system operation under energy-load uncertainty, improve energy efficiency, and realize peak shaving and valley filling of electric energy, thereby reducing dependence on electric energy.

[0118] Professionals should also be further aware that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0119] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiments may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0120] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more limitations, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0121] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. An air conditioning system, characterized in that: The air-conditioning system includes an energy storage air-conditioning box, a heating device and an auxiliary heating pipeline. The energy storage air-conditioning box includes a three-medium heat exchanger. The three-medium heat exchanger includes a first medium channel, a second medium channel and a third medium channel. The first medium channel is connected to the heat source output port of the heating device through the auxiliary heating pipeline. The second medium channel is provided with a phase change material. Part of the air flow channel of the energy storage air-conditioning box constitutes the third medium channel, and the input port of the air flow channel is connected to the space where the gas to be treated is located, and the output port of the air flow channel is connected to the space to be adjusted.

2. The air conditioning system according to claim 1, characterized in that: The air-conditioning system includes a first control pump and a control device. The first control pump is located in the auxiliary heating pipeline. The control device is electrically connected to the first control pump. The control device is configured to control the on / off of the auxiliary heating pipeline through the first control pump based on the power usage scenario of the heating device and / or the temperature of the phase change material in the three-medium heat exchanger.

3. The air conditioning system according to claim 2, characterized in that: The control device is configured to at least one of the following: When the electricity consumption scenario is a valley electricity scenario and the temperature of the three-medium heat exchanger is greater than a set temperature threshold, controlling the auxiliary heating pipeline to be in an on state or an off state; When the electricity usage scenario is the electricity valley scenario and the temperature of the three-medium heat exchanger is lower than the set temperature threshold, controlling the auxiliary heating pipeline to be in a conducting state; When the electricity consumption scenario is a peak electricity consumption scenario, the auxiliary heating pipeline is controlled to be in a closed state.

4. The air conditioning system according to claim 2, characterized in that: The three-medium heat exchanger includes at least one temperature detection device, which is electrically connected to the control device and is used to detect the temperature of the phase change material in the three-medium heat exchanger.

5. The air conditioning system according to claim 1, characterized in that: The air conditioning system includes a main heat supply pipeline, and the heat source channel of the energy storage air conditioning box is connected to the heat source output port of the heating device through the main heat supply pipeline; The air-conditioning system includes a second control pump and a control device. The second control pump is located in the main heating pipeline. The control device is electrically connected to the second control pump. The control device is configured to control the main heating pipeline through the second control pump based on the power usage scenario of the heating device and / or the temperature of the phase change material in the three-medium heat exchanger.

6. The air conditioning system according to claim 5, characterized in that: The control device is configured to at least one of the following: When the electricity usage scenario is a valley electricity scenario, controlling the main heating pipeline to be in a conducting state; When the electricity consumption scenario is a peak scenario and the temperature of the three-medium heat exchanger is greater than a set temperature threshold, the main heating pipeline is controlled to be in a shut-off state; When the electricity consumption scenario is the peak electricity scenario and the temperature of the three-medium heat exchanger is lower than the set temperature threshold, the main heating pipeline is controlled to be in a conducting state.

7. The air conditioning system according to claim 5, characterized in that: The air-conditioning system includes a third control pump, the heating device includes an air-cooled heat pump, the main heating pipeline is connected to the heat source output port of the heating device through the third control pump, and the control device is electrically connected to the third control pump. The control device is configured to control the opening of the third control pump based on the temperature of the space to be conditioned when the auxiliary heating pipeline is in a conducting state and the temperature fluctuation of the space to be conditioned is within a preset range.

8. The air conditioning system according to any one of claims 1 to 6, characterized in that: The heating device includes at least one of the following devices: Compressed air heat recovery unit, air-cooled heat pump, medium temperature heat recovery chiller.

9. The air conditioning system according to any one of claims 1 to 7, characterized in that: The air conditioning system includes at least one fan filter assembly, and the output port of the air flow channel is connected to the space to be conditioned through the at least one fan filter assembly.

10. The air conditioning system according to any one of claims 1 to 7, characterized in that: The heating device includes a medium-temperature heat recovery chiller, and the air-conditioning system includes a cooling tower and a dry cooling coil. The cooling tower is connected to the medium-temperature heat recovery chiller, and the medium-temperature heat recovery chiller is connected to the dry cooling coil. The dry cooling coil is used to provide refrigeration gas for the space to be conditioned.

Images