A multi-modal indoor temperature and humidity conditioning system

Abstract

The utility model discloses a multimode indoor temperature and humidity regulation system belongs to the heating ventilation air conditioner technical field, solves the problem of poor multi-season regulation and control effect, inconvenient operation of existing combined equipment. The system comprises a heat pump host, a fan coil, a distribution water heater, a ground coil, a mixed water module, a first temperature probe, a second temperature probe, a mixed water controller, a room control panel and a main control screen, the heat pump host outputs cold / hot water, and the water is shunted to the fan coil and the ground coil through the water supply main pipe, the mixed water module accurately adjusts the water temperature, the room control panel linkage control end equipment, and the main control screen communicates with the cloud operation management platform. It can realize summer refrigeration, winter heating, plum rain season dehumidification mode, improve indoor comfort, ensure stable operation, support remote operation and maintenance at the same time, reduce cost and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heating, ventilation and air conditioning technology, and particularly relates to a multimodal indoor temperature and humidity control system. Background Technology

[0002] In the field of HVAC, air conditioning equipment combining fan coil units and floor coil units is a common indoor environment control device. However, existing combined equipment suffers from problems such as unreasonable hardware structure design, limited functionality, and inconvenient operation and maintenance, making it difficult to meet the temperature and humidity requirements of multiple seasons. 1. Poor coordination of terminal structures: In existing equipment, fan coil units and ground coil units are mostly independent operating structures, lacking effective linkage control connection design. In summer, relying solely on fan coil units for cooling, their single airflow delivery structure easily produces the discomfort of "wind blowing on people," and there is no hardware to assist in humidity control; during the rainy season, there is no dedicated "heating + dehumidification" terminal switching structure, resulting in excessively low room temperature during dehumidification, making it impossible to balance temperature and humidity. 2. Inadequate mixing control structure: Traditional floor heating coils rely on simple valve switches for water supply temperature control. They are not designed with an integrated mixing structure that combines a three-way valve, actuator, and temperature probe. This makes it impossible to accurately adjust the outlet water temperature according to seasonal needs. In summer, condensation is likely to occur due to low floor temperature, and in winter, the heating effect is likely to be affected by unstable water supply temperature.

[0003] 3. Lack of control and maintenance structure: The local control of existing equipment is mostly a single temperature controller, without a control panel structure that integrates temperature and humidity acquisition, dew point calculation and multi-parameter setting; and it lacks a communication connection structure with a remote cloud platform, which makes it impossible to realize remote storage of operating data, remote adjustment of parameters and remote early warning of faults. Maintenance requires on-site operation, which is costly and inefficient.

[0004] Therefore, there is an urgent need for a multimodal indoor temperature and humidity control system to solve the technical problems of poor multi-seasonal temperature and humidity control and inconvenient operation and maintenance caused by the defects in the hardware structure design of existing fan coil and ground coil combination equipment. Utility Model Content

[0005] The main purpose of this utility model is to propose a multimodal indoor temperature and humidity control system, which aims to solve the technical problems of poor multi-seasonal temperature and humidity control effect and inconvenient operation and maintenance caused by the defects in the hardware structure design of the existing fan coil and ground coil combination equipment.

[0006] This utility model provides a multimodal indoor temperature and humidity control system, including: A heat pump unit, the heat pump unit having a first water outlet and a first water return outlet, the first water outlet being connected to a water supply main pipe, the first water return outlet being connected to a water return main pipe, the first water outlet being used to output cold water or hot water from the heat pump unit. A fan coil unit, wherein the fan coil unit has a second water inlet and a second water outlet, the second water inlet is connected to the main water supply pipe through a second water supply branch pipe, and the second water outlet is connected to the main water return pipe through a second water return branch pipe. The water distribution manifold includes a water distributor and a water collector. The water distributor has a third water inlet and a third water outlet. The third water inlet is connected to the main water supply pipe through a third water supply branch pipe. The water collector has a fourth water inlet and a fourth water outlet. The fourth water outlet is connected to the main return water pipe through a fourth return water branch pipe. A ground-mounted water coil has a fifth water inlet and a fifth water outlet. The fifth water inlet is connected to the third water outlet through a fifth water supply branch pipe, and the fifth water outlet is connected to the fourth water inlet through a fifth water return branch pipe. An electric heating actuator is installed on the fifth water supply branch pipe. A mixing module has a three-way valve and a water pump sequentially arranged on the third water supply branch pipe. The three-way valve has a first valve inlet, a second valve inlet, and a valve outlet. The first valve inlet is connected to the main water supply pipe through the third water supply branch pipe, and the valve outlet is connected to the water pump through the third water supply branch pipe. The water pump is connected to the third inlet of the water distributor through the third water supply branch pipe. The second valve inlet is connected to the fourth return water branch pipe through the sixth water supply branch pipe. The opening degree of the three-way valve is controlled by the mixing valve actuator. A first temperature probe is installed on the third water supply branch pipe between the water pump and the water distributor. The second temperature probe is installed on the fourth return water branch pipe and is used to collect the actual temperature of the water flowing out of the fourth outlet of the water collector in real time. A mixing controller, which is signal-connected to the mixing valve actuator, the water pump, the first temperature probe, and the second temperature probe; The room control panel has a temperature and humidity sensor and is used to control the fan coil unit and the electric heating actuator.

[0007] Furthermore, the multimodal indoor temperature and humidity control system also includes a main control screen, which is connected to the heat pump host, the room control panel and the mixing controller. The main control screen has built-in control software.

[0008] Furthermore, the signal connection is implemented using a communication cable with a 485 interface, and the signal connection uses the 485 communication protocol for communication.

[0009] Furthermore, the number of fan coil units is at least one.

[0010] Further, the fan coil unit, the floor coil unit and the room control panel are installed in the same room.

[0011] Further, the fan coil unit is selected from a DC fan coil unit and / or an AC fan coil unit.

[0012] Further, the working modes of the multi-modal indoor temperature and humidity regulation system include a summer cooling mode, a winter heating mode and a rainy season dehumidification mode in the plum rain season.

[0013] Further, the main control screen is further in network communication connection with the cloud operation and management platform.

[0014] Further, the cloud operation and management platform is in signal connection with a Web management terminal.

[0015] Further, the cloud operation and management platform is in signal connection with a mobile terminal.

[0016] The utility model can bring at least one of the following beneficial effects: Improved multi-season regulation effect: the linkage control of the fan coil unit and the floor coil unit is realized, floor condensation is avoided in summer, the heating uniformity is improved by combining radiation and convection heat transfer in winter, and low-wind-speed dehumidification in the plum rain season gives consideration to the balance of temperature and humidity, so as to improve indoor comfort; Optimized operation stability: the water mixing module integrating a three-way valve, an actuator and a temperature probe can accurately adjust the water temperature, and avoid the problems of condensation in summer and temperature fluctuation in winter; Convenient operation and maintenance management: the main control screen communicates with the cloud operation and management platform, which supports remote storage of operation data, remote adjustment of parameters and remote fault early warning, and reduces the on-site operation and maintenance cost and improves the efficiency. Brief Description of the Drawings

[0017] The preferred embodiments will be described below in a clear and easy-to-understand manner with reference to the accompanying drawings, to further elaborate the above features, technical characteristics, advantages and implementation manners thereof.

[0018] Figure 1 This is a schematic diagram of a multi-modal indoor temperature and humidity regulation system proposed in the embodiment of the utility model.

[0019] Wherein, 1 - heat pump main unit, 2 - main water supply pipe, 3 - main water return pipe, 4 - fan coil unit, 5 - second water supply branch pipe, 6 - second water return branch pipe, 7 - water separator, 8 - water collector, 9 - third water supply branch pipe, 10 - fourth water return branch pipe, 11 - floor coil unit, 12 - fifth water supply branch pipe, 13 - fifth water return branch pipe, 14 - electric heating actuator, 15 - three-way valve, 16 - water mixing valve actuator, 17 - water pump, 18 - sixth water supply branch pipe, 19 - first temperature probe, 20 - second temperature probe, 21 - water mixing controller, 22 - room control panel, 23 - main control screen, 24 - cloud operation and management platform, 25 - Web management terminal, 26 - mobile terminal. Detailed Implementation

[0020] The following provides a more detailed description of various aspects of this utility model.

[0021] Unless otherwise defined or stated, all technical and scientific terms used herein have the same meaning as are familiar to those skilled in the art. Furthermore, any methods and materials similar to or equivalent to those described herein may be applied to this invention.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] See appendix Figure 1 This utility model provides a multimodal indoor temperature and humidity control system, comprising: The heat pump host 1 has a first water outlet and a first water return outlet. The first water outlet is connected to a water supply main pipe 2, and the first water return outlet is connected to a water return main pipe 3. The first water outlet is used to output cold water or hot water from the heat pump host 1. The fan coil unit 4 has a second water inlet and a second water outlet. The second water inlet is connected to the main water supply pipe 2 through a second water supply branch pipe 5, and the second water outlet is connected to the main water return pipe 3 through a second water return branch pipe 6. The water distribution manifold includes a water distributor 7 and a water collector 8. The water distributor 7 has a third water inlet and a third water outlet. The third water inlet is connected to the main water supply pipe 2 through a third water supply branch pipe 9. The water collector 8 has a fourth water inlet and a fourth water outlet. The fourth water outlet is connected to the main return water pipe 3 through a fourth return water branch pipe 10. The ground coil 11 has a fifth water inlet and a fifth water outlet. The fifth water inlet is connected to the third water outlet through a fifth water supply branch pipe 12, and the fifth water outlet is connected to the fourth water inlet through a fifth water return branch pipe 13. An electric heating actuator 14 is installed on the fifth water supply branch pipe. The mixing module has a three-way valve 15 and a water pump 17 sequentially arranged on the third water supply branch pipe. The three-way valve has a first valve inlet, a second valve inlet, and a valve outlet. The first valve inlet is connected to the main water supply pipe 2 through the third water supply branch pipe 9. The valve outlet is connected to the water pump 17 through the third water supply branch pipe 9. The water pump 17 is connected to the third inlet of the water distributor 7 through the third water supply branch pipe 9. The second valve inlet is connected to the fourth return water branch pipe 10 through the sixth water supply branch pipe 18. The opening degree of the three-way valve 15 is controlled by the mixing valve actuator 16. The first temperature probe 19 is disposed on the third water supply branch pipe 9 between the water pump 17 and the water distributor 7. The second temperature probe 20 is installed on the fourth return water branch pipe 10 and is used to collect the actual temperature of the water flowing out of the fourth outlet of the water collector 8 in real time. A mixing controller 21 is connected to the mixing valve actuator 16, the water pump 17, the first temperature probe 19, and the second temperature probe 20 via signal connection. The room control panel 22 has a temperature and humidity sensor and is used to control the fan coil unit 4 and the electric heating actuator 14.

[0024] It should be noted that the mixing controller 21 is connected to the mixing valve actuator 16, water pump 17, first temperature probe 19, and second temperature probe 20 via execution signal lines. The room control panel 22 is connected to the fan coil unit 4 and the electric heating actuator 14 via execution signal lines, and is used to control the fan coil unit 4 and the electric heating actuator 14. The execution signal lines are attached. Figure 1 The double-dotted line in the middle.

[0025] In a preferred embodiment, the multimodal indoor temperature and humidity control system further includes a main control panel 23, which is connected to the heat pump host 1, the room control panel 22 and the mixing controller 21. The main control panel 23 has built-in control software.

[0026] In a preferred embodiment, the signal connection is implemented using a communication cable with a 485 interface, and the signal connection uses the 485 communication protocol for communication.

[0027] In a preferred embodiment, the number of fan coil units 4 is at least one. It should be noted that the fan coil unit 4 has three operating modes: high, medium, and low.

[0028] In a preferred embodiment, the fan coil unit 4, the floor coil unit 11, and the room control panel 22 are installed in the same room.

[0029] It should be noted that the appendix Figure 1 The diagram shows three sets of fan coil units 4 and three room control panels 22. One set of fan coil units 4, one set of floor coil units 11, and one room control panel 22 are installed in the same room. In this room, the room control panel 22 is used to control the fan coil units 4 and the electric heating actuators 14.

[0030] In a preferred embodiment, the fan coil unit 4 is selected from DC fan coil units and / or AC fan coil units.

[0031] As a preferred embodiment, the operating modes of the multimodal indoor temperature and humidity control system include: summer cooling mode, winter heating mode, and rainy season dehumidification mode.

[0032] In a preferred embodiment, the main control screen 23 is also connected to the cloud operation and management platform 24 via network communication.

[0033] In a preferred embodiment, the cloud operation and management platform 24 is connected to the Web management terminal 25 via a signal.

[0034] In a preferred embodiment, the cloud operation and management platform 24 is signal-connected to the mobile terminal 26.

[0035] It should be noted that the main control screen 23, cloud operation and management platform 24, heat pump host 1, mixing controller 21, and room control panel 22 are connected via network or WiFi. The web management terminal 25 is connected to the cloud operation and management platform 24 via a control signal line. The control signal line is an accessory. Figure 1 The dashed line indicates that the mobile terminal 26 is connected to the cloud operation and management platform 24 via a network or WiFi.

[0036] Example 1: Summer cooling using a multimodal indoor temperature and humidity control system In this embodiment, the multimodal indoor temperature and humidity control system operates in summer cooling mode. The specific working process is as follows: First, the user inputs a summer cooling command to the system through the main control screen 23 or the mobile terminal 26, setting the indoor target temperature range to 24-26℃ and the target relative humidity to ≤65%. The main control screen 23 transmits the command to the heat pump host 1 through the 485 communication protocol. After receiving the command, the heat pump host 1 switches to the cooling operation state, and its first outlet outputs cold water at a temperature of 7℃. The cold water enters the system's water circulation pipeline through the water supply main pipe 2. Next, the temperature and humidity sensor built into the room control panel 22 collects the temperature and humidity data of the indoor environment in real time and transmits the collected real-time data to the mixing controller 21. After analyzing and processing the received temperature and humidity data, the mixing controller 21 outputs corresponding control signals: on the one hand, it controls the fan coil unit 4 to start, and the fan coil unit 4 is set to a suitable fan speed by default. The cold water in the main water supply pipe 2 flows into the second inlet of the fan coil unit 4 through the second water supply branch pipe 5. The cold water exchanges heat with the indoor air through convection in the fan coil unit 4 to cool the indoor air. After the heat exchange is completed, the water flows out through the second outlet of the fan coil unit 4 and then through the second return water branch pipe. 6. The water flows into the main return water pipe 3; on the other hand, the electric heating actuator 14 is turned on so that some of the cold water in the main water supply pipe 2 can flow into the third inlet of the water distributor 7 through the third water supply branch pipe 9. After the cold water enters the water distributor 7, it flows into the fifth inlet of the ground coil 11 through the third outlet of the water distributor 7 and the fifth water supply branch pipe 12. The cold water is released into the room through the ground coil 11 by ground radiation to achieve auxiliary cooling. After completing the radiant heat exchange, the water flows out through the fifth outlet of the ground coil 11 and flows into the fourth inlet of the water collector 8 through the fifth return water branch pipe 13. Finally, it flows into the main return water pipe 3 through the fourth outlet of the water collector 8 and the fourth return water branch pipe 10.During this process, the first temperature probe 19 is installed on the third water supply branch pipe 9 between the water pump 17 and the distributor 7. It collects the temperature of the water flowing to the distributor 7 in real time and transmits the collected temperature signal to the mixing controller 21. The mixing controller 21 compares the received real-time temperature with the preset water supply temperature threshold (17-18℃) of the ground coil 11. Based on the comparison result, it controls the mixing valve actuator 16 to adjust the opening of the three-way valve 15: when the collected temperature is lower than 17℃, the mixing controller 21 controls the mixing valve actuator 16 to reduce the second valve inlet of the three-way valve 15 (this inlet is connected to the first...). The opening of the sixth water supply branch pipe 18 (connected to the fourth return water branch pipe 10) is increased, and the opening of the first valve inlet of the three-way valve 15 (which is connected to the main water supply pipe 2 via the third water supply branch pipe 9) is also increased to increase the input of low-temperature cold water. When the collected temperature is higher than 18℃, the mixing controller 21 controls the mixing valve actuator 16 to adjust the opening of the three-way valve 15 in the opposite direction. The high-temperature return water in the fourth return water branch pipe 10 is introduced through the sixth water supply branch pipe 18 and mixed with the low-temperature cold water in the main water supply pipe 2 to achieve precise control of the mixing temperature and ensure that the ground temperature is maintained at 21-23℃ to avoid condensation on the ground. In addition, the room control panel 22 continuously monitors the difference between the actual indoor temperature and the target temperature, and dynamically adjusts the fan speed of the fan coil unit 4 according to the difference: when the actual indoor temperature is ≥2℃ higher than the target temperature, the room control panel 22 outputs a signal to control the fan coil unit 4 to increase the fan speed to high; when the temperature difference is 1-2℃, the fan coil unit 4 is controlled to maintain a medium fan speed; when the temperature difference is <1℃, the fan coil unit 4 is controlled to decrease to a low fan speed; if the room control panel 22 calculates that the indoor dew point temperature is ≥17℃ based on the collected temperature and humidity data... When the temperature reaches the critical value for preventing condensation, an immediate signal is output to shut off the electric heating actuator 14, blocking the flow of cold water into the ground coil 11, leaving only the fan coil unit 4 running. At the same time, the second temperature probe 20 is installed on the fourth return water branch pipe 10, which collects the temperature of the return water flowing out of the water collector 8 in real time and transmits the temperature signal to the mixing controller 21. The mixing controller 21 dynamically adjusts the speed of the water pump 17 according to the difference between the outlet water temperature of the main water supply pipe 2 and the return water temperature collected by the second temperature probe 20, so as to ensure the stability of the system's cooling efficiency.

[0037] Example 2: Winter heating using a multimodal indoor temperature and humidity control system In this embodiment, the multimodal indoor temperature and humidity control system operates in winter heating mode. The specific working process is as follows: The user sets the indoor target temperature range to 20-22℃ through the Web management terminal 25 or the main control screen 23. The main control screen 23 transmits the heating control command to the heat pump host 1. After receiving the command, the heat pump host 1 switches to the heating operation state, and its first outlet outputs hot water at a temperature of 45℃. The hot water enters the system's water circulation pipeline through the water supply main pipe 2. The room control panel 22 prioritizes outputting a control signal to activate the electric heating actuator 14. Hot water in the main water supply pipe 2 flows into the third inlet of the distributor 7 via the third water supply branch pipe 9. After entering the distributor 7, the hot water flows through the third outlet of the distributor 7 and the fifth water supply branch pipe 12 into the fifth inlet of the floor coil 11. Heat is then released into the room via the floor coil 11 through radiant heat exchange, achieving indoor heating. After radiant heat exchange, the water flows out through the fifth outlet of the floor coil 11 and into the fourth inlet of the collector 8 via the fifth return branch pipe 13. The water then flows through the collector 8... The fourth outlet and the fourth return water branch pipe 10 converge into the return water main pipe 3; if the room control panel 22 detects that the actual indoor temperature is ≥2℃ lower than the target temperature, an additional control signal is output to start the fan coil unit 4 and adjust the fan speed of the fan coil unit 4 to the medium level. Some of the hot water in the main water supply pipe 2 flows into the second inlet of the fan coil unit 4 through the second water supply branch pipe 5. The hot water undergoes convective heat exchange with the indoor air in the fan coil unit 4, which quickly raises the indoor temperature. After the convective heat exchange is completed, the water flows out through the second outlet of the fan coil unit 4 and converges into the return water main pipe 3 through the second return water branch pipe 6. The first temperature probe 19 collects the temperature of the hot water flowing to the distributor 7 in real time and transmits the collected temperature signal to the mixing controller 21. The mixing controller 21 compares the received real-time temperature with the preset water supply temperature threshold (38-42℃) of the ground coil 11, and adjusts the opening of the three-way valve 15 through the mixing valve actuator 16 according to the comparison result: when the collected temperature is higher than 42℃, the mixing controller 21 controls the mixing valve actuator 16 to increase the opening of the second valve inlet of the three-way valve 15, introducing low-temperature return water in the fourth return branch pipe 10 to mix with high-temperature hot water in the main water supply pipe 2 to achieve cooling; when the collected temperature is lower than 38℃, the mixing valve actuator 19 controls the mixing valve actuator 16 to increase the opening of the second valve inlet of the three-way valve 15. 6. Reduce the opening of the second valve inlet of the three-way valve 15, while increasing the opening of the first valve inlet to increase the input of high-temperature hot water; the second temperature probe 20 collects the return water temperature in the fourth return water branch pipe 10 in real time and transmits the temperature signal to the mixing controller 21. The mixing controller 21 adjusts the operating power of the water pump 17 according to the difference between the supply water temperature and the return water temperature (the preset difference range is 5-8℃) to ensure the heat exchange efficiency of the floor coil 11; if the room control panel 22 detects that the floor temperature is ≥26℃, it immediately feeds the temperature signal back to the mixing controller 21, and the mixing controller 21 further reduces the supply water temperature of the floor coil 11 to avoid overheating in the room.When the room control panel 22 detects that the indoor temperature reaches the target temperature ±0.5℃, it outputs a control signal to shut down the fan coil unit 4, leaving only the floor coil 11 running at low power. If the indoor temperature fluctuates by ≤1℃ at night, the system maintains the current operating parameters to avoid frequent start-stop of the heat pump host 1 and terminal equipment, thus reducing energy consumption. If the first temperature probe 19 detects that the water supply temperature of the floor coil 11 is ≥28℃, the mixing controller 21 immediately outputs a signal to reduce the outlet water temperature of the heat pump host 1 to prevent local overheating of the floor and ensure system operation safety and indoor comfort.

[0038] Example 3: Dehumidification during the rainy season using a multimodal indoor temperature and humidity control system. In this embodiment, the multimodal indoor temperature and humidity control system operates in the plum rain season dehumidification mode. The specific working process is as follows: The user sets the indoor target temperature range to 23-25℃ and the target dew point temperature to ≤16℃ through the mobile terminal 26 or the main control screen 23. The main control screen 23 transmits the dehumidification control command to the heat pump host 1 and the mixing controller 21. After receiving the command, the system automatically enters the "floor heating combined with fan dehumidification" circulating dehumidification mode. During the "floor heating" stage, the heat pump unit 1 switches to heating operation, and its first outlet outputs hot water at a temperature of 30-32℃. This hot water flows into the manifold 7 via the main water supply pipe 2 and the third water supply branch pipe 9. The room control panel 22 outputs a control signal to activate the electric heating actuator 14. The hot water in the manifold 7 flows into the floor coil 11 via the fifth water supply branch pipe 12. The floor coil 11 raises the indoor temperature to above 24℃ through ground radiation, utilizing the heat storage characteristics of the floor to maintain the indoor temperature baseline. During this stage, the fan coil unit 4 remains off. The water that has completed radiant heat exchange flows out through the fifth outlet of the floor coil 11, flows into the water collector 8 via the fifth return water branch pipe 13, and then flows into the return water main 3 via the fourth outlet of the water collector 8 and the fourth return water branch pipe 10. This "floor heating" stage lasts for 15-20 minutes. After the "floor heating" stage ends, the "fan coil dehumidification" stage begins: the room control panel 22 outputs a control signal to shut off the electric heating actuator 14, blocking the flow of hot water into the floor coil 11; at the same time, the main control panel 23 controls the heat pump host 1 to switch to cooling operation, and its first outlet outputs cold water at a temperature of 5-8℃, which flows into the second inlet of the fan coil 4 through the second water supply branch pipe 5; the room control panel 22 controls the fan coil 4 to turn on a low fan speed (to avoid excessive drop in indoor temperature), when the hot and humid indoor air flows over the low-temperature coil surface of the fan coil 4, the water vapor in the air condenses into water on the coil surface and is discharged, achieving condensation dehumidification; the water after dehumidification flows out through the second outlet of the fan coil 4 and merges into the return water main 3 through the second return water branch pipe 6. The room control panel 22 continuously monitors the indoor dew point temperature. When the detected dew point temperature is ≤16℃, it outputs a control signal to shut down the fan coil unit 4, and the system switches back to the "floor heating" stage. If the room control panel 22 detects that the indoor temperature is below 23℃ during the "fan coil dehumidification" stage, it immediately stops the dehumidification operation and prioritizes starting the "floor heating" stage to raise the indoor temperature back to the target temperature range. The mixing controller 21 dynamically adjusts the cooling and heating time ratio of the heat pump host 1 (the default time ratio is heating:dehumidification=1:2) based on the return water temperature in the fourth return water branch pipe 10 collected by the second temperature probe 20, ensuring that the indoor temperature fluctuation is ≤1℃ and the relative humidity is stable at 55-60%. During this process, the cloud operation and management platform 24 stores the system's operating data in real time. If the system experiences a decrease in dehumidification efficiency or excessive temperature fluctuations, the cloud operation and management platform 24 sends an early warning signal to the user through the main control screen 23, which facilitates timely troubleshooting and handling by the user.

[0039] Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or practice the method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0040] All documents mentioned in this invention are incorporated herein by reference as if each document were individually incorporated by reference. Furthermore, it should be understood that after reading the foregoing description of this invention, those skilled in the art can make various alterations or modifications to this invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A multimodal indoor temperature and humidity control system, characterized in that, include: A heat pump unit, the heat pump unit having a first water outlet and a first water return outlet, the first water outlet being connected to a water supply main pipe, the first water return outlet being connected to a water return main pipe, the first water outlet being used to output cold water or hot water from the heat pump unit. A fan coil unit, wherein the fan coil unit has a second water inlet and a second water outlet, the second water inlet is connected to the main water supply pipe through a second water supply branch pipe, and the second water outlet is connected to the main water return pipe through a second water return branch pipe. The water distribution manifold includes a water distributor and a water collector. The water distributor has a third water inlet and a third water outlet. The third water inlet is connected to the main water supply pipe through a third water supply branch pipe. The water collector has a fourth water inlet and a fourth water outlet. The fourth water outlet is connected to the main return water pipe through a fourth return water branch pipe. A ground-mounted water coil has a fifth water inlet and a fifth water outlet. The fifth water inlet is connected to the third water outlet through a fifth water supply branch pipe, and the fifth water outlet is connected to the fourth water inlet through a fifth water return branch pipe. An electric heating actuator is installed on the fifth water supply branch pipe. A mixing module, comprising a three-way valve and a water pump sequentially arranged on the third water supply branch pipe, and a mixing valve actuator. The three-way valve has a first valve inlet, a second valve inlet, and a valve outlet. The first valve inlet is connected to the main water supply pipe through the third water supply branch pipe, and the valve outlet is connected to the water pump through the third water supply branch pipe. The water pump is connected to the third inlet of the water distributor through the third water supply branch pipe. The second valve inlet is connected to the fourth return water branch pipe through the sixth water supply branch pipe. The opening degree of the three-way valve is controlled by the mixing valve actuator. A first temperature probe is installed on the third water supply branch pipe between the water pump and the water distributor. The second temperature probe is installed on the fourth return water branch pipe and is used to collect the actual temperature of the water flowing out of the fourth outlet of the water collector in real time. A mixing controller, which is signal-connected to the mixing valve actuator, the water pump, the first temperature probe, and the second temperature probe; The room control panel has a temperature and humidity sensor and is used to control the fan coil unit and the electric heating actuator.

2. The multimodal indoor temperature and humidity control system according to claim 1, characterized in that, The multimodal indoor temperature and humidity control system also includes a main control screen, which is connected to the heat pump unit, the room control panel and the mixing controller. The main control screen has built-in control software.

3. The multimodal indoor temperature and humidity control system according to claim 2, characterized in that, The signal connection is implemented using a communication cable with a 485 interface, and the signal connection uses the 485 communication protocol for communication.

4. The multimodal indoor temperature and humidity control system according to claim 3, characterized in that, The number of fan coil units is at least one.

5. The multimodal indoor temperature and humidity control system according to claim 4, characterized in that, The fan coil units, floor coil units, and room control panel are installed in the same room.

6. The multimodal indoor temperature and humidity control system according to claim 5, characterized in that, The fan coil unit is selected from DC fan coil units and / or AC fan coil units.

7. The multimodal indoor temperature and humidity control system according to claim 6, characterized in that, The operating modes of the multimodal indoor temperature and humidity control system include: summer cooling mode, winter heating mode, and rainy season dehumidification mode.

8. The multimodal indoor temperature and humidity control system according to claim 7, characterized in that, The main control screen is also connected to the cloud operation and management platform network.

9. A multimodal indoor temperature and humidity control system according to claim 8, characterized in that, The cloud operation and management platform is connected to the web management terminal via signal.

10. A multimodal indoor temperature and humidity control system according to claim 9, characterized in that, The cloud operation and management platform is connected to the mobile terminal signal.

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