Integrated cold and heat source system

Abstract

The invention provides an integrated cold and heat source system, and relates to the technical field of integrated systems. The heat pump unit is connected with an energy storage device through a pipeline; the heat pump unit and the energy storage device are respectively connected with a circulating device through pipelines; a control device is arranged outside the heat pump unit; the control device is connected with the heat pump unit and the circulating device through signal lines. Through efficient conversion of the air-cooled heat pump module unit and energy adjustment of the energy storage device, maximum utilization of energy is achieved, the requirement of a traditional split type air conditioning system for the equipment placement environment is reduced, through intelligent control and energy optimization management, the operation and maintenance cost is reduced, and the energy utilization rate is increased. The problems that a traditional air conditioning system usually adopts a split type design, namely refrigeration and heating are completed through different devices, due to the design, the purchase cost of the devices is increased, and due to the fact that effective energy integration is lacked between the devices, the energy utilization efficiency is low are solved.

Description

Technical Field

[0001] This invention relates to the field of integrated systems technology, and in particular to an integrated cold and heat source system. Background Technology

[0002] In modern buildings, air conditioning systems are an essential facility. With the vigorous promotion of energy conservation and emission reduction policies and the increasing attention people pay to energy efficiency, building energy consumption issues are receiving more and more attention. Against this backdrop, users' demand for high-efficiency air conditioning equipment is constantly increasing. However, focusing only on the energy efficiency ratio of individual equipment while ignoring the overall matching performance of the system makes it difficult to fundamentally reduce system operating costs. At the same time, the function of a building may change during its service life, and the air conditioning load will also change accordingly. Traditional central air conditioning system designs are fixed and difficult to adapt to such changes. Often, it is necessary to discard the original equipment and redesign and install it, resulting in huge waste of resources. Therefore, in order to meet the needs of users for air conditioning equipment, an integrated cold and heat source system is needed.

[0003] Traditional air conditioning systems typically employ a split design, where cooling and heating are performed by separate devices. This design not only increases the cost of purchasing the equipment but also leads to low energy efficiency due to the lack of effective energy integration between the devices. Summary of the Invention

[0004] This invention relates to an integrated cold and heat source system, which includes a heat pump unit and an energy storage device. Through the efficient conversion of the air-cooled heat pump module unit and the energy regulation of the energy storage device, the system maximizes energy utilization, reduces the environmental requirements for equipment placement in traditional split air conditioning systems, and lowers operating and maintenance costs through intelligent control and energy optimization management. Its integrated design improves the stability and reliability of the system.

[0005] This invention provides an integrated cold and heat source system, specifically including: a heat pump unit; the heat pump unit is connected to an energy storage device via pipeline; The heat pump unit and the energy storage device are respectively connected to a circulation device via pipelines; The heat pump unit is equipped with an external control device; The control device is connected to the heat pump unit and the circulation device via signal lines.

[0006] Preferably, the heat pump unit consists of components such as a compressor, condenser, expansion valve, and evaporator. The heat pump unit can transfer heat from a low-temperature heat source to a high-temperature heat source by consuming a small amount of electrical energy or other energy.

[0007] Preferably, the energy storage device is a device that stores cold or heat and releases it when needed to meet the air conditioning load requirements, and it can store energy in the form of cold or heat in an energy storage medium.

[0008] Preferably, the circulation device can transfer cold / heat from the heat pump unit to the terminal equipment.

[0009] Preferably, the control device ensures that indoor temperature, humidity, air quality and other indicators meet the requirements through the coordinated operation of sensors, controllers and actuators.

[0010] The integrated cold and heat source system provided by this invention has the following beneficial effects: In this invention, the energy storage device and the control device work together. During off-peak hours, the control device uses low-cost electricity to drive the heat pump unit to charge the energy storage device and store cold or heat energy. During peak hours, the energy storage device releases energy to meet the air conditioning load demand, while the heat pump unit uses a small amount of electricity to drive heat transfer, achieving an energy efficiency ratio far exceeding that of traditional electric heating or cooling equipment. The circulation device accurately delivers cold / heat energy, reducing energy loss during transmission. Through the efficient conversion of the heat pump unit and the energy regulation of the energy storage device, it achieves maximum energy utilization.

[0011] In addition, as a backup energy source, the energy storage device can continuously provide cooling / heating to the terminal equipment when the heat pump unit fails or the energy supply is interrupted, ensuring the stability of the indoor environment and avoiding the deterioration of the indoor environment due to equipment failure. At the same time, in the face of sudden peak loads, the energy storage device can quickly release the stored energy to work with the heat pump unit to meet the demand and avoid the system from becoming unstable or shutting down due to a sudden increase in load.

[0012] Furthermore, through the efficient conversion of the air-cooled heat pump module unit and the energy regulation of the energy storage device, the maximum utilization of energy is achieved, reducing the requirements of traditional split air conditioning systems on the equipment placement environment. Through intelligent control and energy optimization management, the operating and maintenance costs are reduced, and its integrated design improves the stability and reliability of the system. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0014] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0015] In the attached diagram: Figure 1 A schematic diagram of a three-dimensional assembly structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the three-dimensional assembly bottom view structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the planar structure of an integrated cold and heat source system according to an embodiment of the present invention is shown; Figure 4 A flowchart of an integrated cold and heat source system according to an embodiment of the present invention is shown.

[0016] List of reference numerals 1. Heat pump unit; 2. Energy storage device; 3. Circulation device; 4. Control device. Detailed Implementation

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0018] Example 1: Please refer to Figures 1 to 4 This invention proposes an integrated cold and heat source system, comprising: a heat pump unit 1; an energy storage device 2 connected to the heat pump unit 1 via a pipe; a circulation device 3 connected to the heat pump unit 1 and the energy storage device 2 via pipes respectively; a control device 4 externally provided for the heat pump unit 1; and the control device 4 connected to the heat pump unit 1 and the circulation device 3 via signal lines respectively.

[0019] Example 2: Based on Example 1, as follows Figures 1 to 4 As shown, the heat pump unit 1 consists of components such as a compressor, condenser, expansion valve, and evaporator. The heat pump unit 1 can transfer heat from a low-temperature heat source to a high-temperature heat source by consuming a small amount of electrical energy or other energy.

[0020] The energy storage device 2 is a device that stores cold or heat and releases it when needed to meet the air conditioning load requirements. It can store energy in the form of cold or heat in an energy storage medium.

[0021] The circulation device 3 can transfer cold / heat from the heat pump unit 1 to the terminal equipment.

[0022] Control device 4 ensures that indoor temperature, humidity, air quality and other indicators meet the requirements through the coordinated work of sensors, controllers and actuators.

[0023] The specific usage and function of this embodiment: In this invention, when the user sets indoor temperature, humidity and other parameters through the operation interface of the control device 4, the control device 4 compares and calculates the current indoor environment data collected by the sensor with the set value. If cooling is required, the control device 4 sends a start command to the heat pump unit 1, and the compressor starts to work, compressing the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure gas. After being liquefied by the condenser, the gas enters the evaporator after being depressurized and cooled by the expansion valve. In the evaporator, the gas absorbs heat from the low-temperature heat source and evaporates into a gaseous state, completing the refrigeration cycle. At the same time, the control device 4 starts the chilled water circulation pump in the circulation device 3, and transports the cooled low-temperature water in the evaporator to the terminal equipment through the pipeline. The fan in the terminal equipment blows cold air into the room to reduce the indoor temperature. When the indoor temperature reaches the set value, the control device 4 adjusts the compressor frequency of the heat pump unit 1 or the water pump flow rate of the circulation device 3 to make the system enter a low-power maintenance state. In heating mode, heat pump unit 1 changes the refrigerant flow direction through a four-way valve, turning the condenser into an evaporator and the evaporator into a condenser. After the compressor compresses and heats the refrigerant, the high-temperature and high-pressure refrigerant gas releases heat to the circulating water in the condenser. The heated hot water is then transported to the terminal equipment by the hot water circulation pump of the circulation device 3 to achieve the heating function. Simultaneously, the control device 4 automatically starts the charging program based on the remaining capacity of the energy storage device 2 and real-time electricity price information. If cold energy storage is performed, the control device 4 controls the heat pump unit 1 to operate at full capacity in cooling mode. The generated low-temperature chilled water is transported to the energy storage device 2 through the circulation device 3. After absorbing the cold energy, the temperature of the energy storage medium decreases, completing the cold energy storage. If heat energy storage is performed, the heat pump unit 1 switches to heating mode and inputs the generated high-temperature hot water into the energy storage device 2, causing the energy storage medium to heat up and store heat. During the charging process, the control device 4 monitors the temperature, pressure and other parameters of the energy storage device 2 in real time. When the set energy storage limit is reached, the charging is automatically stopped.

[0024] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0025] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0026] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A system for an integrated cold and heat source, comprising: The heat pump unit (1) is characterized in that the heat pump unit (1) is connected with an energy storage device (2) through a pipeline; The heat pump unit (1) and the energy storage device (2) are respectively connected with a circulating device (3) through a pipeline; The heat pump unit (1) is externally provided with a control device (4); The control device (4) is respectively connected with the heat pump unit (1) and the circulating device (3) through a signal line.

2. The system of claim 1, wherein: The heat pump unit (1) is composed of a compressor, a condenser, an expansion valve, an evaporator and other components, and can transfer the heat of a low-temperature heat source to a high-temperature heat source by consuming a small amount of electric energy or other energy.

3. The system of claim 1, wherein: The energy storage device (2) is a device that stores cold or heat and releases it when needed to meet the air conditioning load demand, and can store energy in the form of cold or heat in the energy storage medium.

4. The system of claim 1, wherein: The circulating device (3) can deliver cold / heat from the heat pump unit (1) to the end device.

5. The system of claim 1, wherein: The control device (4) ensures that the indoor temperature and humidity, air quality and other indicators meet the requirements through the cooperative work of sensors, controllers and actuators.

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