51results about How to "Reduce heat supply" patented technology

The invention relates to a time-of-use partitioned heat supply control system, which comprises a heat source host, supply / return water pipes, electric two-way valves, a time-of-use partitioned controller and control lines, wherein the supply / return water pipe is used for time-of-use partitioned buildings and a building with different functional partitions, the electric two-way valves are used for controlling on and off of water supply of the building or certain regions, and the time-of-use partitioned ontroller is used for setting a time-of-use partitioned scheme for the building or different functional partitions in the inner portion of the building. The time-of-use partitioned heat supply control system can set heat supply time according to respective different demands of the buildings in regions, and automatically turns on and off the electric two-way valve to guarantee reasonable heat supply demands. The time-of-use partitioned heat supply control system automatically opens a valve in a closed period of the valve through comparing a static water temperature and a set value of a monitoring pipeline to prevent pipelines from being frozen off, sets heat supply setting in weekends and holidays through an embedded perpetual calendar, can transmit turn-on time, state and water temperature of the valve and the like to the heat source host through communication, achieves heat supply of different buildings in regions and different functional partitions in the inner portions of the buildings according to demands, reduces consumption of primary energy in the regions in maximum, and reduces discharge of pollutant.

The invention relates to a wide-load heat supply and energy-saving system for a back-pressure small steam turbine driving an induced draft fan, including a main steam turbine, a back-pressure small steam turbine, an induced draft fan, a boiler reheater, a deaerator and a low-pressure heater. The exhaust end of the high-pressure cylinder is connected to the steam inlet end of the boiler reheater, and one of the outlet ends of the boiler reheater is connected to the steam inlet end of the medium-pressure cylinder to form a reheat circuit; one of the outlet ends of the boiler reheater 2. Connect the steam inlet end of the back-pressure small steam turbine to form a heating circuit; the power output end of the back-pressure small steam turbine is connected to the drive input end of the induced draft fan to form the drive circuit of the induced draft fan; one of the exhaust ports of the medium-pressure cylinder passes through The regenerative steam extraction pipeline is connected to the steam inlet end of the deaerator, and the second outlet of the medium-pressure cylinder is connected to the steam inlet end of the low-pressure heater through the steam extraction pipeline to form a regenerative circuit; the low-pressure heater, condensate pipeline, The steam extraction and supplementary structure of the heating circuit is formed between the connecting pipelines of the deaerator and the medium-pressure cylinder and the heating pipe network. The invention not only improves the heating operation economy, but also has the advantages of higher operation adjustment flexibility and better heating economy.

The invention discloses a solar ground-kang surface combined heating system, which includes a solar heat collection system, a heat storage system, a heat storage system, a floor heating system and a control system; the heat collection system collects solar radiation heat and outputs it for storage In the heat storage system, the separate heating operation time and heat supply of the ground-kang surface heating system are set through the control system to meet the heat demand of the human body. When people are active in the room during the day, the floor heating system can heat the room to meet the indoor temperature requirements; at night, when people are sleeping, the kang surface heating system can provide a comfortable bed temperature. The present invention adopts the ground-kang surface time-sharing heating mode to operate, and according to the different heat demands in the day and night human body activity areas and different states, it can be supplied on demand, reduce building energy consumption, reduce system scale and cost, and is easy to apply and easy to control. The operability is strong, and the popularization and application in solar heating buildings in villages and towns has good economic and social benefits.

The invention discloses a parallel type multi-effect vacuum membrane distillation apparatus and method and belongs to the field of membrane distillation. The parallel type multi-effect vacuum membrane distillation apparatus which is low in energy consumption comprises n-stage parallel membrane distillation units; tube passes of a first feed liquid tank, a booster pump, a hollow fiber membrane module form a first closed circulation loop; tube passes of the hollow fiber membrane modules of the second stage to the nth stage, the shell pass of a shell-and-tube heat exchanger of the former stage, the feed liquid tank and the booster pump of the corresponding stage form a second closed circulation loop, a third closed circulation loop..., an nth closed circulation loop. The tube pass of a shell-and-tube heat exchanger of the nth stage is communicated with a cooler. In each stage, the outlet of the shell pass of the hollow fiber membrane module and a finished product collection tank are communicated with the inlet of the tube pass of the corresponding shell-and-tube heat exchanger; a thermometer is arranged on a connection pipeline between the booster pump and the hollow fiber membrane module. Besides, the outlet of the tube pass of the shell-and-tube heat exchanger of the first stage to the outlet of the tube pass of the (n-1)th stage are respectively communicated with the outlet of the shell pass of the hollow fiber membrane module of the next stage and then communicated with the inlet of the tube pass of the shell-and-tube heat exchanger of the next stage, and the outlet of the tube pass of the nth shell-and-tube heat exchanger is communicated with a vacuum pump.

The invention discloses a heat supply system based on a water mixing device. The water mixing device comprises a secondary circulating pump, a temperature sensor and a three-way electric valve, wherein a water inlet of the primary circulating pump is connected with a boiler, a water outlet of the primary circulating pump is connected with one end of a heat exchanger, the other end of the heat exchanger is connected with a water inlet of the water mixing device, a water outlet of the water mixing device is connected with a building heat radiator of a building to be supplied with heat, the temperature sensor is arranged in a room at the tail end of the building to be supplied with heat,, in which the heat supply system is,and a temperature signal acquired by the temperature sensor is associated with an electric valve of the heat supply system. According to the invention, heat supply regulation, constant-temperature PID (Proportion Integration Differentiation) control and the water mixing device are combined, namely, the water supply temperature is controlled by using the water mixing device, and the temperature in the room at the tail end is subjected to constant-temperature PID regulation for controlling the water supply flow.

The invention discloses a massive four-stage moving bed carbonization furnace in a hydrogen-rich environment and a carbonization method thereof. The dry distillation furnace includes a drying preheating section, a sealing section, a dry distillation section, and a cooling section arranged sequentially from top to bottom. The upper part of the drying preheating section is provided with a feed port and the lower part is provided with an air inlet, and the upper part is far away from the air inlet end. There is an exhaust port, and the sealing section is connected to the upper drying and preheating section and the lower retort section through the star feeder installed inside. The oil and gas outlet, the cooling section is connected with the dry distillation section, the bottom of the cooling section is provided with a coke discharge port to connect with the coke discharge system and the lower part is provided with a cold gas inlet. The dry distillation method includes the steps of drying and preheating, sealing, dry distillation and cooling. The invention has the characteristics of low power consumption, high energy utilization rate, high oil production rate, good oil quality, less oil and gas dust, high gas calorific value and high resource utilization rate.

The invention relates to the technical field of automobile air conditioners, in particular to a method for recycling exhaust air heat of an electric automobile and a heat pump air-conditioning system adopting the method. The method for recycling the exhaust air heat of the electric automobile and the heat pump air-conditioning system adopting the method mainly solve the technical problem that in the prior art, due to the fact that a fresh air load is too high in the using process of an air conditioning system of an electric automobile, power consumption of devices is large. By the adoption of the method for recycling the exhaust air heat of the electric automobile, a great amount of heat in exhaust air is recycled, a fresh air load can be lowered to the maximum extent, and therefore compared with the prior art, the power consumption of devices is further reduced. The heat pump air-conditioning system can be switched between a refrigeration mode, a conventional heating mode and a low-temperature heating mode. The heat pump air-conditioning system has the advantages of being high in system efficiency, high in heating performance, low in thermal requirement, high in shock resistance performance, high in system safety and the like under a low-temperature environment.

The invention provides color cathode tube.When the thickness of the panel at an X axis end of the useful portion is expressed by Tx (mm), the thickness thereof at a Y axis end is expressed by Ty (mm), the thickness thereof at the center is expressed by Tc (mm) and an outer dimension of the panel along the diagonal axis direction is expressed by D (mm), 0.8<=(100xTC / D)2x(Tx / Ty)<=2.2 and 0.012<=Tc / D<=0.019 are satisfied. Accordingly, the stress generated in a short side and that generated in a long side in a sealing portion in an exhausting process are substantially equalized. As a result, cracking of the panel can be reduced in the exhausting process even when the panel is made thinner. Therefore, it is possible to provide a cathode ray tube that is easy to manufacture and has a lighter and less expensive panel.