Air conditioning system suitable for multi-scene requirements

Abstract

The utility model discloses an air conditioning system suitable for multi-scene requirements, and belongs to the technical field of air conditioners. The air conditioning system suitable for the multi-scene requirements comprises a heat pump, a water supply pipe, a water return pipe and a plurality of area tail ends, the first ends of the water supply pipe and the water return pipe conduct heat exchange in the heat pump, and the second ends, different from the first ends, of the water supply pipe and the water return pipe communicate through a connecting pipe; and the plurality of regional tail ends are connected in parallel to the water supply pipe and the water return pipe. The connecting pipe is arranged at the tail end of the water supply pipe and the tail end of the water return pipe for communication, so that water in the water supply pipe does not pass through the tail end of any area when entering the water return pipe, and the water in the water supply pipe is kept stable in flow and temperature all the time; therefore, different modes can be started at the tail ends of different areas connected to the water supply pipe and the water return pipe, the comfort degree of each area is improved, cold and hot abutting is achieved, and the energy consumption of a heat pump main machine is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more specifically, to an air conditioning system suitable for multiple scenarios. Background Technology

[0002] In recent years, with the improvement of people's material life, people have higher and higher requirements for indoor environment.

[0003] Radiant air conditioners have gained increasing acceptance among consumers due to their high comfort and low energy consumption. However, their slower heating and cooling rates and higher thermal inertia limit their effectiveness in situations requiring rapid heating and cooling. For example, in office settings, meeting rooms need rapid heating and cooling with flexible on / off control, making convection terminals suitable. Private offices requiring long-term operation and high comfort can utilize radiant terminals. Large office spaces needing zoned operation with flexible on / off control and a certain level of comfort can benefit from a combination of convection and radiant terminals. Given the varying usage times in different areas, maximizing energy efficiency through behavioral adjustments is a crucial issue that needs to be addressed. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] Some embodiments of this application propose an air conditioning system suitable for multiple scenarios to solve the technical problems mentioned in the background section above.

[0006] As a first aspect of this application, some embodiments of this application provide an air conditioning system suitable for multiple scenarios, including a heat pump, a water supply pipe, a water return pipe, and several regional terminals. The first ends of the water supply pipe and the water return pipe exchange heat in the heat pump, and the second ends of the water supply pipe and the water return pipe, which are different from the first ends, are connected by a connecting pipe. Several regional terminals are connected in parallel to the water supply pipe and the water return pipe.

[0007] Furthermore, the water supply pipe, return pipe, and connecting pipe have the same diameter.

[0008] Furthermore, several of the area terminals are connected to the water supply pipe and the water return pipe via water supply branch pipes and return branch pipes, wherein the water supply branch pipe is connected to the water supply pipe and the return branch pipe is connected to the return pipe.

[0009] Furthermore, the diameter of the water supply pipe is greater than or equal to the sum of the diameters of all water supply branch pipes, and the diameter of the return water pipe is greater than or equal to the sum of the diameters of all return water branch pipes.

[0010] Furthermore, a circulating water pump is provided at the end of any of the aforementioned areas, and the circulating water pump is installed on the water supply branch pipe.

[0011] Furthermore, the area end includes a radiant panel and a dual-cold-source fresh air unit arranged in parallel. The radiant panel is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe, and the dual-cold-source fresh air unit is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

[0012] Furthermore, the end of the area includes a fan coil unit and a dual-source fresh air unit connected in parallel, and both the fan coil unit and the dual-source fresh air unit are connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

[0013] Furthermore, the end of the area includes a metal radiant panel, a dry fan coil unit, and a direct expansion fresh air unit arranged in parallel. The metal radiant panel, the dry fan coil unit, and the direct expansion fresh air unit are all connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

[0014] Furthermore, several regions are defined to include a first region, a second region, and a third region;

[0015] The first area includes a radiant panel and a dual-cold-source fresh air unit arranged in parallel. The radiant panel is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe. The dual-cold-source fresh air unit is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

[0016] The second area includes a fan coil unit and a dual-source fresh air unit arranged in parallel. The fan coil unit and the dual-source fresh air unit are both connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

[0017] The third area includes a metal radiant panel, a dry fan coil unit, and a direct expansion fresh air unit arranged in parallel. The metal radiant panel, the dry fan coil unit, and the direct expansion fresh air unit are all connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

[0018] The air conditioning system applicable to multiple scenarios includes two or three zones: a first zone, a second zone, and a third zone.

[0019] Compared with the prior art, the technical solution provided in this application has the following advantages:

[0020] This application connects the supply and return water pipes by installing a connecting pipe at the end, so that the water in the supply pipe can flow into the return water pipe without passing through any area end. This ensures that the water in the supply pipe maintains a relatively stable flow and temperature. Therefore, different area ends connected to the supply and return water pipes can be opened in different modes, improving the comfort of each area while achieving heat and cold balance, and greatly reducing the energy consumption of the heat pump unit. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0022] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of an air conditioning system applicable to multiple scenarios according to one embodiment of this application.

[0024] Explanation of the labels in the diagram:

[0025] 100. Heat pump;

[0026] 200. Water supply pipe;

[0027] 300. Return water pipe;

[0028] 400. Connecting pipe;

[0029] 500, End of Region. Detailed Implementation

[0030] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0031] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0032] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0033] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0034] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0035] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figure 1 As shown, an embodiment of this application provides an air conditioning system applicable to multiple scenarios, which mainly includes a heat pump 100, a water supply pipe 200, a water return pipe 300, and several regional terminals 500. The first ends of the water supply pipe 200 and the water return pipe 300 exchange heat in the heat pump 100. The second ends of the water supply pipe 200 and the water return pipe 300, which are different from the first ends, are connected by a connecting pipe 400. Several regional terminals 500 are connected in parallel to the water supply pipe 200 and the water return pipe 300.

[0037] Specifically, when the heat pump 100 is operating normally, it absorbs heat from the external environment and transfers it to the indoor unit via the water supply pipe 200. Specifically, the refrigerant (cooling medium) in the internal pipes of the heat pump 100 is compressed into a high-temperature, high-pressure gas by the compressor. This gas enters the outdoor unit's heat exchanger (condenser) to absorb heat from the outside. After being depressurized by a throttling device, it releases heat into the indoor unit's plate heat exchanger (evaporator), thus achieving indoor heating. The condenser has fins that fully contact the outside air, absorbing heat from the air and transferring it into the room. The water supply pipe 200 and the return pipe 300 are connected inside the heat pump 100 (at the first end) and exchange heat with the plate heat exchanger. The water in the water supply pipe 200 is heated by the plate heat exchanger and then flows out of the heat pump 100 to the subsequent regional terminal 500, providing heat to different regional terminals 500. At a second end, different from the first end, i.e., the end of the water supply pipe 200 and the return pipe 300 furthest from the heat pump 100, a connecting pipe 400 is provided. One end of the connecting pipe 400 is connected to the water supply pipe 200, and the other end is connected to the return pipe 300 to form a closed loop. Compared with the prior art, the end of the water supply pipe 200 furthest from the heat pump 100 is often connected to a regional end 500, and then led out from the regional end 500 and connected to the return pipe 300 to form a closed loop. In the above-mentioned prior art design, the water in the water supply pipe 200 must pass through the regional end 500 at the end to flow. Therefore, the flow rate and flow rate of the water in the water supply pipe 200 are affected by the regional end 500. When other regional ends 500 connected in parallel in the water supply pipe 200 and the return pipe 300 want to draw heat from the water supply pipe 200, the regional ends 500 at the end must be opened and the flow accelerated. Therefore, the above-mentioned prior art design is not suitable for the diverse needs of office environments.

[0038] In this application, a connecting pipe 400 is provided at the end of the water supply pipe 200 and the return pipe 300 so that the water in the water supply pipe 200 can form a closed loop even without the water flowing through any area end 500. Therefore, each area end 500 can freely draw heat from the water supply pipe 200 and the return pipe 300 without affecting each other, which can meet the cooling and heating needs of different areas of the office.

[0039] More specifically, the water supply pipe 200, return pipe 300, and connecting pipe 400 have the same diameter. Maintaining consistent diameters ensures a uniform water flow velocity across all areas, resulting in a more stable water flow and temperature when drawing water from the supply and return pipes.

[0040] In one specific embodiment, several of the area terminals 500 are connected to the water supply pipe 200 and the water return pipe 300 via water supply branch pipes and return branch pipes, wherein the water supply branch pipes are connected to the water supply pipe 200 and the return branch pipes are connected to the return pipe 300. Each area is connected in parallel on the water supply pipe 200 and the return pipe 300, without interference between them, thus achieving independence for each area.

[0041] More specifically, the diameter of the water supply pipe 200 is greater than or equal to the sum of the diameters of all water supply branch pipes, and the diameter of the return water pipe 300 is greater than or equal to the sum of the diameters of all return water branch pipes. The purpose of having the same diameter for both the water supply pipe 200 and the return water pipe 300, and ensuring that the diameter of the water supply pipe 200 is greater than or equal to the sum of the diameters of all water supply branch pipes, is to allow each area to simultaneously draw water from both the water supply pipe 200 and the return water pipe 300 when all areas are open, thus guaranteeing independent operation between each area.

[0042] To ensure smooth water flow in each area, a circulating water pump is installed at the end 500 of each area, and the circulating water pump is located on the water supply branch pipe. The circulating water pump can introduce water from the water supply pipe 200 and the return pipe 300 into each area.

[0043] Specifically, the terminal area 500 includes a radiant panel and a dual-source fresh air unit connected in parallel. The radiant panel is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe 200 and the return pipe 300, and the dual-source fresh air unit is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe 200 and the return pipe 300. The radiant panel can regulate the temperature of the area, while the dual-source fresh air unit can regulate the humidity and oxygen concentration of the area.

[0044] In one specific implementation, the area terminal 500 includes a fan coil unit and a dual-source fresh air unit connected in parallel. Both the fan coil unit and the dual-source fresh air unit are connected to the ends of the water supply branch pipe and return branch pipe furthest from the water supply pipe 200 and return pipe 300. This allows for precise temperature regulation of each area within the area.

[0045] In one specific embodiment, the area end 500 includes a metal radiant panel, a dry fan coil unit, and a direct expansion fresh air unit arranged in parallel. The metal radiant panel, dry fan coil unit, and direct expansion fresh air unit are all connected to the ends of the water supply branch pipe and return branch pipe away from the water supply pipe 200 and return pipe 300. The radiant panel can regulate the indoor temperature, and the fresh air unit can regulate the indoor humidity and oxygen concentration.

[0046] Another aspect of this application discloses an air conditioning system operation method applicable to multiple scenarios, wherein the air conditioning system is as described above, and the operation method includes:

[0047] Define several regions 500 as the first region, the second region, the third region, ... the nth region. Each region transfers cold or heat to the supply pipe 200 and the return pipe 300 through the supply branch pipe and the return branch pipe. When the transferred cold and heat reach a cold-heat balance, the heat pump 100 is turned off.

[0048] Specifically, depending on the project requirements, one or more air-source or ground-source heat pumps (100) can be connected in parallel to form a water supply pipe (200), a return pipe (300), and a connecting pipe (400) for circulation. In each area's branch circuit, one or more variable frequency circulating pumps are configured to handle the water system circulation for that area. The temperature of each room within the area can be controlled as needed through radiant terminals such as capillary tubes, radiant panels, and cooled beams, or by using dry fan coil units. Indoor humidity can be controlled using dual-source fresh air systems or direct-expansion fresh air systems, achieving independent temperature and humidity control.

[0049] For example, in summer, the air source heat pump 100 directly supplies water at 15-20℃ for cooling, while in winter it supplies water at 30-35℃ for heating, significantly improving the overall system energy efficiency and achieving energy savings. During transitional seasons, different zones can be freely configured, such as the first zone in heating mode and the second in cooling mode. In this case, the first and second zones respectively transfer cooling and heating energy through the circulating water circuit of the supply pipe 200, return pipe 300, and connecting pipe 400. Under optimal thermal balance, the heat pump 100 does not need to be turned on to maintain a constant water temperature. This greatly reduces the operating time and power consumption of the heat pump 100, achieving energy savings.

[0050] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An air conditioning system suitable for multiple scenarios, characterized in that: It includes a heat pump, a water supply pipe, a water return pipe, and several regional terminals. The first ends of the water supply pipe and the water return pipe exchange heat in the heat pump. The second ends of the water supply pipe and the water return pipe, which are different from the first ends, are connected by a connecting pipe. Several regional terminals are connected in parallel to the water supply pipe and the water return pipe.

2. The air conditioning system applicable to multiple scenarios according to claim 1, characterized in that: The water supply pipe, return pipe, and connecting pipe have the same diameter.

3. The air conditioning system applicable to multiple scenarios according to claim 2, characterized in that: Several of the aforementioned area terminals are connected to the water supply pipe and the water return pipe via water supply branch pipes and return branch pipes, wherein the water supply branch pipe is connected to the water supply pipe and the return branch pipe is connected to the water return pipe.

4. The air conditioning system applicable to multiple scenarios according to claim 3, characterized in that: The diameter of the water supply pipe is greater than or equal to the sum of the diameters of all water supply branch pipes, and the diameter of the return water pipe is greater than or equal to the sum of the diameters of all return water branch pipes.

5. The air conditioning system applicable to multiple scenarios according to claim 4, characterized in that: A circulating water pump is provided at the end of each of the areas, and the circulating water pump is installed on the water supply branch pipe.

6. The air conditioning system applicable to multiple scenarios according to any one of claims 3 to 5, characterized in that: The area at the end includes a radiant panel and a dual-cold-source fresh air unit arranged in parallel. The radiant panel is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe, and the dual-cold-source fresh air unit is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

7. The air conditioning system applicable to multiple scenarios according to any one of claims 3 to 5, characterized in that: The area at the end includes a fan coil unit and a dual-source fresh air unit connected in parallel. The fan coil unit and the dual-source fresh air unit are both connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

8. The air conditioning system applicable to multiple scenarios according to any one of claims 3 to 5, characterized in that: The end of the area includes a metal radiant panel, a dry fan coil unit, and a direct expansion fresh air unit arranged in parallel. The metal radiant panel, the dry fan coil unit, and the direct expansion fresh air unit are all connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe.

9. The air conditioning system applicable to multiple scenarios according to any one of claims 3 to 5, characterized in that: Define several regions, including a first region, a second region, and a third region; The first area includes a radiant panel and a dual-cold-source fresh air unit arranged in parallel. The radiant panel is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe. The dual-cold-source fresh air unit is connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe. The second area includes a fan coil unit and a dual-source fresh air unit arranged in parallel. The fan coil unit and the dual-source fresh air unit are both connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe. The third area includes a metal radiant panel, a dry fan coil unit, and a direct expansion fresh air unit arranged in parallel. The metal radiant panel, the dry fan coil unit, and the direct expansion fresh air unit are all connected to the end of the water supply branch pipe and the return branch pipe away from the water supply pipe and the return pipe. The air conditioning system applicable to multiple scenarios includes two or three of the first zone, the second zone, and the third zone.

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