38results about How to "Reduce transmission and distribution energy consumption" patented technology

The invention discloses a method for reducing return water temperature of a heat supply pipeline, which belongs to the technical field of energy. A waterway system of the heat supply pipeline is divided into a primary network hot water pipeline and a secondary network hot water pipeline, and the return water temperature of a primary network of the heat supply pipeline of a centralized heat supplysystem is reduced with the help of an absorption heat pump / refrigerator and a water-water heat exchanger or the single absorption heat pump / refrigerator, thereby increasing the temperature differencebetween supply water and return water of the primary network, wherein, when the single absorption heat pump / refrigerator is used, the primary network hot water pipeline and the secondary network hot water pipeline are connected by adopting the direct connection way, when the absorption heat pump / refrigerator and the water-water heat exchanger are used, the primary network hot water pipeline and the second network hot water pipeline are connected by adopting the indirect connection way. The method can greatly reduce the return water temperature of the primary network pipeline, increase the temperature resistance between the supply water and the return water of the primary network, further reduce the initial development of the heat supply pipeline and the transmission and distribution energy consumption of the primary network to a greater extent, reduce the operation cost of centralized heat supply and enlarge the heat supply radius of a heat source for heat supply.

The invention discloses an AI-based self-adaptive variable pressure difference control method for an air-conditioning variable flow water system, which is characterized in that it includes the following steps: Load forecast value; b Calculate the instantaneous required flow rate of each terminal equipment based on the predicted load value of each terminal and the maximum temperature difference between supply and return water for safe and stable operation of each terminal equipment; c Based on the pre-measured control pressure difference when all terminal valves are fully open ‑Corresponding database for each terminal flow, obtain multiple control differential pressure values ​​corresponding to different terminal equipment flow rates, and select the control differential pressure value with the largest value as the control differential pressure value for real-time control; dAccording to the control differential pressure value for real-time control The value and the real-time collected water supply and return pressure difference value are used to control the water pump controller so that the real-time collected supply and return water pressure difference value is close to the control pressure difference value. The present invention can more accurately meet terminal requirements, and has the advantages of simple, accurate, safe and stable control.

The invention relates to a full-air unit provided with cold / heat sources without an auxiliary heat dissipation device and capable of outputting a refrigerant / heat medium. The full-air unit comprises cold / heat source units, an air heat-humidity treatment unit and a heat dissipation / heat absorption unit. The air heat-humidity treatment unit comprises a fresh air heat-humidity treatment unit and a mixed air heat-humidity treatment unit. The cold / heat source units prepare the refrigerant and the heat medium to provide all cold energy or heat energy for air heat-humidity load treatment of the unit without other external cold sources or heat sources and meanwhile output the refrigerant and the heat medium to the outside of the unit. The heat dissipation / heat absorption unit conducts heat dissipation treatment or heat absorption treatment through unit exhaust air and part of fresh air without an external auxiliary heat dissipation device. By means of the full-air unit, refrigerating / heating devices are integrated into the full-air air conditioning unit based on a solution manner, cold / heat source devices and transportation and distribution systems between cold / heat sources and a tail end air conditioning unit are omitted, meanwhile all cooling water and hot water transportation and distribution energy consumption is saved, the problem that cold energy / heat energy distribution and adjustment among the cold / heat sources and air conditioner partitions are difficult is solved, and energy is saved remarkably.

The invention discloses a hydraulic decoupling tank for a central heating system. The hydraulic decoupling tank comprises a tank body. A heat source water-supply pipe joint and a heat source water-return pipe joint are respectively distributed on the upper portion and the lower portion of one side wall of the tank body, a heat supply network water-supply pipe joint and a heat supply network water-return pipe joint are respectively distributed on the upper portion and the lower portion of the other side wall of the tank body. The heat source water-supply pipe joint and the heat supply network water-supply pipe joint are arranged at the same level, and the heat source water-return pipe joint and the heat supply network water-return pipe joint are arranged at the same level. An upper end socket and an air bleeder are respectively arranged on the top of the tank body, and a lower end socket and a blow-off valve are respectively arranged at the bottom of the tank body. The hydraulic decoupling tank decouples a heat source water system and a heat supply network system, and circular flow of the heat supply network is adjusted according to changes of heat load, so that an energy saving effect of a distributed variable-frequency water pump heating system is functioned fully and energy consumption in transmission and distribution of the heating system is reduced.

The invention relates to a data center cabinet with its own temperature control device and vertically arranged servers, including a cabinet body, a server and a temperature control device. The cabinet body is provided with an air inlet channel, a heat dissipation area and an air outlet channel in sequence from bottom to top. The air inlet channel is equipped with a cooling device, and the air outlet channel is equipped with an air induction device. The servers are arranged in the heat dissipation area and arranged vertically. , the temperature control device is used to regulate the temperature inside the cabinet body within the preset temperature range. Based on the concept of creating a non-uniform environment, the present invention adopts a distributed cooling terminal to transform the existing uniform environment cooling mode into a quantitative and precise on-demand cooling mode, which improves the cooling capacity supply efficiency and cooling effect, and effectively reduces Reduced transmission and distribution energy consumption and cooling waste. The vertical staggered arrangement of the servers reduces the resistance along the airflow, and utilizes the principle of rising hot air to enhance the heat dissipation effect. At the same time, it cooperates with the temperature control device to realize the automatic adjustment of cooling on demand.

The invention discloses a building-type absorption heat exchange station, which is composed of an absorption heat exchanger, a water replenishment constant pressure device, a secondary circulation pump, a primary network waterway and a secondary network waterway in the station to form an integrated heat exchange station, and the primary network After the water enters, it is divided into two branches, one branch is connected to the hot side inlet of the absorption heat exchanger, and the other branch is connected to the water inlet of the water supply constant pressure device, and the hot side outlet of the absorption heat exchanger passes through the flowmeter It is connected with the primary water outlet of the heat exchange station; the return water from the secondary network is divided into two branches after entering the water treatment device, one branch is connected to the cold side inlet of the absorption heat exchanger, and the other branch is connected to the water supply and constant pressure The water outlet of the device and the cold side outlet of the absorption heat exchanger are connected to the inlet of the secondary circulation pump, and the outlet of the secondary circulation pump is connected to the secondary water outlet of the heat exchange station. The building-type absorption heat exchange station according to the embodiment of the present invention reduces the return water temperature of the primary network, increases the temperature difference between the supply and return water of the primary network, and makes the hydraulic distribution of the secondary network simpler.