CN-122015250-A - Cold water unit regulation and control method and system based on heat production

CN122015250ACN 122015250 ACN122015250 ACN 122015250ACN-122015250-A

Abstract

The embodiment of the application discloses a method and a system for regulating and controlling a water chilling unit based on heat generation, electronic equipment and a storage medium. According to the technical scheme provided by the embodiment of the application, by introducing analysis and scheduling of the heat energy temperature grade and time dynamic heat demands of different areas in the market, the high-grade recovered heat energy generated by the water chilling unit is separated and stored while meeting the demands of the first area, the schedulable adaptive heat energy which is adapted to the demands of the second area is preferentially distributed in the time period of the demands of the second area, so that the accurate matching and active scheduling of the recovered heat energy under different grade demands and different time space scenes are realized, the overall energy efficiency and the energy utilization rate of the system are improved, and the running cost of an air conditioning system of the market is effectively reduced.

Inventors

CHEN ZEKE
ZHAO MAOJIN
CHEN JIEPING

Assignees

广州思茂特冷冻设备制造有限公司

Dates

Publication Date: 20260512
Application Date: 20260304

Claims (10)

1. A heat-generating-based water chilling unit regulation and control method is characterized by comprising the following steps: Acquiring heat demand information of at least one appointed first area in a first period of time and heat demand information of at least one appointed second area in a second period of time of a target market, wherein the heat demand information at least comprises a demand heat energy temperature grade and a corresponding demand period of time, and the demand heat energy temperature grade of the first area is higher than the demand heat energy temperature grade of the second area; Determining a temperature grade height relationship and a time relationship of heat energy demand of the first area and the second area based on the heat demand information of the first area and the second area, and determining a cooperative operation scheduling instruction sequence for the water chilling unit and the heat storage device in the first period and the second period according to the temperature grade height relationship and the time relationship of heat energy demand, wherein the cooperative operation scheduling instruction sequence is used for controlling the water chilling unit to produce heat energy recovered in corresponding temperature grade and controlling the heat storage device to store and release the heat energy recovered; The high-grade recovered heat energy is controlled to be produced by the water chilling unit in the first period according to the collaborative operation scheduling instruction sequence, the high-grade recovered heat energy comprises first grade recovered heat energy and schedulable adaptive heat energy, the first grade recovered heat energy is matched with the heat demand information of the first area, the first grade recovered heat energy is directionally distributed to the first area through a heat distribution pipe network, and the schedulable adaptive heat energy is synchronously conveyed to the heat storage device for storage; And under the condition that the schedulable adaptive heat energy does not match the heat demand information of the second area, controlling the water chilling unit to produce second grade recovered heat energy, and distributing the second grade recovered heat energy to the second area in a directional manner through a heat energy distribution pipe network, wherein the second grade recovered heat energy and the schedulable adaptive heat energy are matched with the heat demand information of the second area.
2. The heat generation-based water chiller control method of claim 1, wherein the first zone is a designated dining area, the first period is a period above a preset threshold determined from indoor heat load and/or people flow density monitoring data of the dining area, the second zone is a designated cinema area, and the second period is a ventilation preheating period including a set movie discrete time period.
3. The heat generation-based water chiller control method of claim 2, wherein the first grade recovered heat energy is used for distribution to a reheat coil inside a fresh air handling unit of the dining area to reheat dehumidified air to a set supply air temperature.
4. The method for controlling a heat-generating-based water chiller according to claim 1, wherein the obtaining the heat demand information of the at least one designated first area of the target market in the first period and the heat demand information of the at least one designated second area in the second period comprises: acquiring real-time temperature and humidity monitoring data of the first area and the second area; And predicting to obtain the heat demand information based on the real-time temperature and humidity monitoring data and the corresponding pre-stored regional load characteristic model.
5. The method for controlling a water chiller based on heat generation according to claim 1, wherein determining a coordinated operation scheduling instruction sequence for a water chiller and a heat storage device in the first period and the second period according to the required heat energy temperature grade relationship and the required time relationship comprises: Based on the demand time relationship, determining a time interval between the first time period and the second time period, generating a thermal energy storage instruction based on the time interval, adding the thermal energy storage instruction to the collaborative operation scheduling instruction sequence, wherein the thermal energy storage instruction is used for instructing the heat storage device to store the schedulable adaptive thermal energy.
6. The heat generation-based water chiller control method of claim 1, wherein the directionally distributing the first grade recovered heat energy to the first zone through a heat distribution pipe network and synchronously conveying the schedulable adaptive heat energy to the heat storage device for storage comprises: And acquiring the real-time heat demand load of the first area, dynamically adjusting the proportion of the high-grade recovered heat energy distributed to the first grade recovered heat energy of the first area based on the real-time heat demand load, and taking the rest of recovered heat energy as the schedulable adaptive heat energy.
7. The heat generation-based water chiller control method of claim 1, wherein the water temperature of the schedulable adaptive heat energy stored by the thermal storage device is between a required heat energy temperature grade of the first zone and a required heat energy temperature grade of the second zone.
8. A chiller regulation and control system based on heat generation, comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring heat demand information of at least one appointed first area in a first period of time and heat demand information of at least one appointed second area in a second period of time of a target market, the heat demand information at least comprises a heat demand temperature grade and a corresponding demand period of time, and the heat demand temperature grade of the first area is higher than the heat demand temperature grade of the second area; The instruction determining module is used for determining a required heat energy temperature grade height relation and a required time relation of the first area and the second area based on the heat requirement information of the first area and the second area, and determining a cooperative operation scheduling instruction sequence for the water chilling unit and the heat storage device in the first period and the second period according to the required heat energy temperature grade height relation and the required time relation, wherein the cooperative operation scheduling instruction sequence is used for controlling the water chilling unit to produce the recovered heat energy with the corresponding temperature grade and controlling the heat storage device to store and release the recovered heat energy; The first scheduling module is used for controlling the water chilling unit to generate high-grade recovered heat energy in the first time period according to the collaborative operation scheduling instruction sequence, the high-grade recovered heat energy comprises first-grade recovered heat energy and schedulable adaptive heat energy, the first-grade recovered heat energy is matched with the heat demand information of the first area, the first-grade recovered heat energy is directionally distributed to the first area through a heat distribution pipe network, and the schedulable adaptive heat energy is synchronously conveyed to the heat storage device for storage; And under the condition that the heat demand information of the second area is not matched with the heat adaptive energy, controlling the water chilling unit to generate second grade recovered heat energy, distributing the second grade recovered heat energy to the second area in a directional manner through a heat energy distribution pipe network, wherein the second grade recovered heat energy and the schedulable adaptive heat energy are matched with the heat demand information of the second area.
9. An electronic device, comprising: a memory and one or more processors; the memory is used for storing one or more programs; When executed by the one or more processors, causes the one or more processors to implement the heat generation-based chiller control method of any of claims 1-7.
10. A storage medium containing computer executable instructions, which when executed by a computer processor are for performing the heat generation based chiller control method of any of claims 1-7.

Description

Cold water unit regulation and control method and system based on heat production Technical Field The embodiment of the application relates to the technical field of air conditioning equipment, in particular to a method and a system for regulating and controlling a water chilling unit based on heat production. Background At present, in a water chilling unit regulation scene of a central air conditioning system of a large-scale market, in order to improve energy utilization efficiency, a condensation heat recovery technology is generally adopted to perform heat energy recovery. The technology generally adds a heat recovery device on the condenser side of the chiller to recover waste heat generated during the refrigeration cycle. The recovered heat is transferred to a unified heat storage tank for storage or directly for relatively stationary use, such as providing domestic hot water. The realization process aims to utilize waste heat which is originally discharged into the environment through the cooling tower, thereby achieving the purpose of reducing the comprehensive energy consumption of the building. However, the simple use of condensation heat recovery technology has significant limitations in dealing with the dynamic and diverse cold and heat demands within the building. It is essentially a static heat transfer, lacking active scheduling between the recovered heat source and the specific heat needs of the store. The heat energy recovered by the system can be degraded for use or storage loss due to the fact that the heat energy cannot be instantly adapted to high-grade requirements (namely, a heat use scene which can be met by heat energy with higher temperature), and the system can be supplied insufficiently when the requirements are sudden, so that the system still needs to be supplemented by additional energy, and further improvement of the overall energy efficiency of the system and optimization of the running cost are limited. Disclosure of Invention The embodiment of the application provides a heat generation-based water chilling unit regulation and control method, a heat generation-based water chilling unit regulation and control system, electronic equipment and a storage medium, which can realize accurate matching and active dispatching of heat energy recovered by a market under different grade requirements and different empty scenes, and solve the technical problem of insufficient heat energy supply caused by lack of active dispatching in the traditional condensation heat recovery technology. In a first aspect, an embodiment of the present application provides a method for controlling a water chiller based on heat generation, including: Acquiring heat demand information of at least one appointed first area in a first period of time and heat demand information of at least one appointed second area in a second period of time of a target market, wherein the heat demand information at least comprises a demand heat energy temperature grade and a corresponding demand period of time, and the demand heat energy temperature grade of the first area is higher than the demand heat energy temperature grade of the second area; Based on the heat demand information of the first area and the second area, determining the temperature grade height relationship and the demand time relationship of the heat energy demand of the first area and the second area, and determining a cooperative operation scheduling instruction sequence for the water chilling unit and the heat storage device in a first period and a second period according to the temperature grade height relationship and the demand time relationship of the heat energy demand, wherein the cooperative operation scheduling instruction sequence is used for controlling the water chilling unit to produce the recovered heat energy with the corresponding temperature grade and controlling the heat storage device to store and release the recovered heat energy; the method comprises the steps of controlling a water chilling unit to produce high-grade recovered heat energy in a first period according to a collaborative operation scheduling instruction sequence, wherein the high-grade recovered heat energy comprises first-grade recovered heat energy and schedulable adaptive heat energy, the first-grade recovered heat energy is matched with heat demand information of a first area, the first-grade recovered heat energy is directionally distributed to the first area through a heat energy distribution pipe network, and the schedulable adaptive heat energy is synchronously conveyed to a heat storage device for storage; And under the condition that the heat demand information of the second area is not matched with the heat energy of the schedulable adaptive heat energy, controlling the water chilling unit to produce second grade recovered heat energy, distributing the second grade recovered heat energy to the second area in a directional manner through the heat energy distribu