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

The invention relates to a preparation method for methyl nitrite. The preparation method is characterized by comprising the following steps of: taking NO-containing gas, O2 and methanol as raw materials, inputting the NO-containing gas, the O2 and the methanol into at least one esterification column, reacting to obtain methyl nitrite, and recycling nitric acid and the residual methanol, wherein the residual methanol is recycled in at least one methanol recycling column, and the nitric acid is recycled in at least one nitric acid recycling column. Compared with the prior art, the preparation method for the methyl nitrite has the advantages that MN can be effectively generated, the NO conversion rate can be improved, the yield of the MN can be increased, the heating capacity of the bottom of the esterification column can be reduced, and the wastewater discharged from a system does not contain the nitric acid; the problem of the nitric acid wastewater generated in a process for generating methyl nitrite from NO is thoroughly solved, and the preparation method is beneficial to environmental protection and has a good practical application value and production significance.

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 solar ground surface and kang surface combined heating system. The solar ground surface and kang surface combined heating system comprises a solar heat collecting system, a heat storage system, a kang surface heating system, a ground surface heating system and a control system, wherein the heat collecting system collects solar radiation heat which is then output and stored in the heat storage system, and operation time and supplied heat amount of independent heat supply of the ground surface and kang surface heating system are set through the control system so as to meet the heat demand of people. When a user moves in a room in the daytime, the ground surface heating system supplies heat to the room so as to meet the indoor temperature demand; when the user is in the sleeping state at night, the kang surface heating system provides comfortable quilt temperature. The ground surface and kang surface time-division partition-area heating mode is adopted, and the heat is supplied according to different heat demands in different states and people moving areas in the daytime or at night; the energy consumption of a building is reduced; system scale and cost are reduced; the application is convenient; control is easy; the operability is high; the solar ground surface and kang surface combined heating system is good in economic and social benefits when applied to and popularized in solar heating buildings of villages and small towns.

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 an air conditioning system control device based on a pressure sensor. The air conditioning system control device comprises an air conditioning system controller, the air conditioning system controller is connected with a solar radiation sensor, an outdoor temperature sensor, an outdoor humidity sensor, an indoor temperature sensor, an indoor humidity sensor, a pressure sensing ground mat and a plurality of air conditioning air supply tail ends, the air conditioning air supply tail ends are connected with an air conditioning fan three-speed controller and an air conditioning water system electric valve, and the air conditioning fan three-speed controller and the air conditioning water system electric valve are connected with the air conditioning system controller. The air conditioning system control device based on the pressure sensor has the advantages of being high in intelligent degree, wide in applicability, good in energy-saving effect, and capable of measuring personnel density, controlling the air conditioning air supply tail ends to run at maximum refrigerating capacity in summer and run in minimum heating quantity in winter when the density of indoor personnel is high and the apparent temperature rises instantly and obviously improving human body thermal comfort when personnel at a waiting hall and an entrance of a high-speed rail or a metro are intensive.

A low-cost and practically useful method for preventing global warming by decomposing N2O wherein N2O contained in an N2O-containing gas to be treated can be decomposed at a relatively low temperature; and an apparatus therefor. That is, a method for preventing global warming comprising, in a process of thermally or catalytically decomposing N2O in an N2O-containing gas to be treated, dividing the N2O-containing gas stream to be treated in portions, preheating a portion thereof so as to exothermally decompose N2O in said gas stream to form a hot gas stream, and supplying the remainder of the divided gas stream to be treated into said hot gas stream to thereby continuously decompose N2O.

The invention discloses a smart air conditioning system based on the infrared temperature measuring technology. The smart air conditioning system comprises an air conditioning system controller, and an indoor detecting device and an outdoor detecting device which are electrically connected with the air conditioning system controller. The air conditioning system controller is connected with a plurality of air conditioner terminal air supply equipment parallelly connected. An electric rotation platform is disposed at the front end of each air conditioner terminal air supply equipment and provided with an infrared temperature measuring sensor and a remote jet flow nozzle, and the infrared temperature measuring sensor and the remote jet flow nozzle are electrically connected with the air conditioning system controller. Each air conditioner terminal air supply equipment is provided with an air conditioner fan three-speed controller matched with each air conditioner terminal air supply equipment and an air conditioner water system electric valve, and the air conditioner fan three-speed controller and the air conditioner water system electric valve are electrically connected with the air conditioning system controller. The smart air conditioning system is high in intelligence level, widely applicable, good in energy saving effect, and capable of evidently increasing human body thermal comfortableness of people in waiting halls and at entrances of high-speed railways or subways when the waiting halls and the entrances are crowded.

The invention discloses an oxygen-enriched combustion system based on novel chemical chain oxygen production. The oxygen-enriched combustion system mainly comprises an air compressor, an air preheater, a first reactor, a second reactor, a first heating device, a second heating device, a boiler and an acting device, wherein an inlet of the air compressor communicates with an air supply pipeline, anoutlet of the air compressor communicates with a first inlet of a first four-way valve through the air preheater, a first outlet of the first four-way valve communicates with an inlet of the first reactor, a second outlet of the first four-way valve communicates with an inlet of the second reactor, and oxygen-carrying bodies are arranged in the first reactor and the second reactor respectively. The invention further discloses an oxygen-enriched combustion method based on the novel chemical chain oxygen generation. The oxygen-enriched combustion system has the beneficial effects that the air compressor is used for pressurizing and heating the air entering the reactors, oxygen absorption reaction occurs under the condition that the oxygen-carrying bodies in the reactors is higher than the oxygen-releasing temperature of the oxygen-carrying bodies, the heat absorbed by the oxygen-carrying bodies is accumulated by the oxygen-carrying bodies and inert carriers, and the heat of the oxygen-carrying bodies and the inert carriers are used for supplying self-release oxygen.

The invention relates to a thin micro reforming apparatus used in a fuel cell system. The reforming apparatus includes a substrate having a flow path formed therein, and a fuel inlet portion for introducing fuel to the flow path of the substrate. The fuel inlet portion allows the fuel to flow through a predetermined length of a channel, thereby preheating the fuel. The reforming apparatus also includes an evaporator having a flow path for gasifying liquid fuel, and a reformer for reforming fuel into hydrogen gas via heat absorption reaction. The reforming apparatus further includes a CO remover for removing CO gas contained in the hydrogen gas via heat generation reaction, and a cover for sealing the flow paths of the substrate. The channel of the fuel inlet portion surrounds the evaporator, reformer and CO remover, thereby facilitating insulation at the sides of the reforming apparatus and increasing heat efficiency.

The invention relates to a wide-load heat supply energy saving system of a back pressure type small turbine driving induced draft fan. The system comprises a main turbine, a back pressure type small turbine, an induced draft fan, a boiler reheater, a deaerator and a low-pressure heater, wherein a steam discharge end of a high-pressure cylinder in the main turbine is connected with a steam inlet end of the boiler reheater; one of steam outlet ends of the boiler reheater is connected with a steam inlet end of a medium-pressure cylinder to form a reheating loop; the other one of the steam outlet ends of the boiler reheater is connected with a steam inlet end of the back pressure type small turbine to form a heat supply loop; a power output end of the back pressure type small turbine is connected with a driving input end of the induced draft fan to form an induced draft fan driving loop; one of steam discharge ports of the medium-pressure cylinder is connected with a steam inlet end of the deaerator through a heat return steam extracting pipe; the other one of the steam discharge ports of the medium-pressure cylinder is connected with a steam inlet end of the low-pressure heater through a steam extracting pipe to form a heat returning loop; and a steam extracting and replenishing structure of the heat supply loop is formed between all connecting pipelines of the low-pressure heater, a condensed water pipe, the deaerator and the medium-pressure cylinder and a heat supply pipe network. The system improves the heat supply operation economy, and has the advantages of higher operation adjusting flexibility and better heat supply economy.

The invention provides a system and method for realizing thermoelectric decoupling by using light and heat. A working medium pump is used for transferring a working medium in a cold working medium storage station to a heat collector; the working medium absorbs heat through the heat collector to form high temperature fluid; and the high temperature fluid is fed into a hot working medium storage station under the action of the pressure of the pump. A flow control valve is used for controlling the flow rate of a hot working medium entering a heat exchanger; feed water with the temperature lower than 100 DEG C is heated to generate the steam with the relatively high temperature; the steam with the relatively high temperature enters the heat exchange station to provide heat for heat users; andthe working medium with the temperature lower than 100 DEG C after cooling returns to the cold working medium storage station. As part of the steam in the heating steam comes from the new heating steam of a photothermal system, the heating load coming from a back-pressure turbine is reduced, the electrical load is also reduced simultaneously, and thus, the back-pressure turbine participates in thepower grid peak regulation in the heating mode; and the accumulated heat of the working medium storage station can be used for adjusting the heating load, thereby adjusting the electrical load and quickly participating in frequency modulation. When heat collecting plates do not work, the hot working medium in the hot working medium storage station can still be used for heating the feed water forauxiliary heating so as to enable the unit to have peak and frequency regulation capabilities.

The invention provides a device for synchronously supply heat to a water source heat pump from the geothermal energy and the air energy, belonging to the technical field of water source heat pumps. The device comprises a geothermal energy heat accumulation device which is formed by installing U-shaped inserting pipes into a deep well; and the device also comprises an air energy heat exchange device, a water source heat pump, a heat supply water tank, a geothermal energy heat accumulation device and an air energy heat exchange device which are used for supplying heat to the water source heat pump synchronously. The device for synchronously supply heat to the water source heat pump from the geothermal energy and the air energy is simple and reasonable in structure and convenient to install and use; the water source heat pump is supplied with heat in a mode that the geothermal energy and the air energy are supplied synchronously, so that the device ensures that under any environment, two groups of heat energy are supplied synchronously for the operation of the water source heat pump unit, and an optimal working performance can be obtained constantly; the heat is supplied synchronously from the geothermal energy circulation and the air energy forced convective circulation; the quantity of geothermal energy heat supply is reduced, so that the number of the inserting pipes in the deep well is reduced, then the heat stability of the geothermal energy resource is relatively reliable, and the investment cost is reduced.

The invention discloses a novel coating machine. The coating machine comprises a unreeling mechanism, a first traction mechanism, coating and drying mechanisms, a second traction mechanism and a winding mechanism which are sequentially arranged in the conveying direction of materials; at least two coating and drying mechanisms are arranged in the conveying direction, and the coating and drying mechanisms comprise gluing mechanisms, glue scraping mechanisms and drying mechanisms which are sequentially arranged in the conveying direction; the drying mechanisms comprise heat supply devices and drying boxes; the drying boxes comprise first drying box, a second drying box and a third drying box; each of the first drying box, the second drying box and the third drying box comprises an air inletsand an air outlet; and the number of the heat supply device is two, wherein one heat supply devices is connected with the air inlet of the first drying box through a heat supply pipeline, and the other heat supply device is connected with the air inlet of the second drying oven and the air inlet of the third drying box through another heat supply pipeline. The novel coating machine has the advantages of being low in energy consumption, high in production efficiency.

The invention discloses a convection-radiation combined solar hot air floor heating system and an operation method. The convection-radiation combined solar hot air floor heating system comprises a solar heat collection system, a heat storage floor heating system, a direct air supply heating system and a control system. The solar heat collection system comprises a solar hot air heat collector; the heat storage floor heating system comprises an air coil pipe arranged on a heat storage floor; the direct air supply system comprises an electric heater and an air supply outlet; high-temperature hot air of the solar hot air heat collector enters an air coil of a bedroom through a main air supply pipeline for heat exchange, and medium-temperature hot air obtained after heat exchange is fed into the direct air supply system and enters a living room through the air supply outlet; and living room return air enters a return air pipeline through a return air inlet and is supplied to the solar hot air heat collector. The control system is used for comprehensively adjusting the temperature of each part in the system and adopts an automatic control mode or a manual control mode; and the problems that a traditional solar hot air system is low in efficiency and the direct air supply system is large in air supply temperature fluctuation are solved.

The invention discloses a gas boiler and solar hybrid energy heating system and a control method thereof, and belongs to the field of energy conservation and emission reduction. The system comprises aheat collector, a hot water storage tank, a first electric valve, a first heat exchanger, a ground heating system, a fourth electric valve, a boiler gas heating system and a domestic hot water supplysystem, wherein a water inlet of the heat collector communicates with a water source; a water outlet of the heat collector, the hot water storage tank, the first electric valve, the first heat exchanger and the water inlet of the heat collector communicate sequentially; the first electric valve, the fourth electric valve and the domestic hot water supply system communicate sequentially; a circulating water outlet of the ground heating system, the boiler gas heating system, the first heat exchanger and a circulating water inlet of the ground heating system communicate sequentially; and the water source, the boiler gas heating system and the fourth electric valve communicate sequentially. The system solves the problems of resource waste and poor energy-saving and emission-reducing effects of an existing hybrid energy functional system, and has the advantages of high automation degree, simplicity and reliability.

The invention discloses a virtual power plant optimization scheduling method and system based on building thermal inertia. The method comprises the following steps: sequentially arranging electric heating devices used for heating secondary network circulating water supply in a plurality of heating stations, and adopting hot water and electricity for complementary combined heating; constructing heat storage characteristic models of all buildings according to heat consumer indoor heating radiator structures and room temperature environments, calculating heat storage and heat release time in combination with heat exchange and secondary network heat transmission parameters the electric heating devices, and establishing building indoor temperature dynamic response characteristics in combination with load parameters of the electric heating devices; aggregating the electric heating devices in the plurality of heating stations into a virtual power plant, and establishing a thermoelectric complementary optimization scheduling model through a coordination control center according to heating total load requirements, schedulable heat storage and release loads, load requirements of peak regulation and frequency modulation and other thermoelectric data; and performing electric power regulation and control on the virtual power plant and regulation and control on hydraulic balance loads of a central heating system through the thermoelectric complementary optimization scheduling model.

The invention discloses a preparation device and process of carbon monoxide. The device comprises a cracking zone and a purification zone which communicate; the cracking zone comprises a methanol storage tank, a methanol pump, a raw material preheater, a vaporizer, a heat exchanger, a superheater and a converter which communicate sequentially; the raw material preheater communicates with the heatexchanger and a recovered methanol heater respectively; the recovered methanol heater communicates with a gas-liquid separator, a condenser and the methanol storage tank respectively; the gas-liquid separator communicates with the condenser; the purification zone comprises a plurality of communicating adsorption towers; all the adsorption towers are connected with the gas-liquid separator, a replacement gas buffer tank and a compressor; the compressor communicates with the gas-liquid separator; the preparation process of the carbon monoxide comprises the following steps: (1)decomposing methanol; (2)separating and distilling a cracking gas, and recovering heat; (3) performing adsorption by the adsorption towers; (4) carrying out replacement washing; (5) sucking carbon monoxide. The device has no exhaust gas or waste liquid emissions in the preparation process of carbon monoxide, thereby being safe, environmentally friendly and low in consumption.

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 present invention provides, as simply as possible, a system with which it is possible to reduce a heating heat quantity and / or a cooling heat quantity at a delivery source and a heating heat quantity and / or a cooling heat quantity at a use destination. A pure-water temperature control system 1 according to the present invention is provided with: a pure water production plant 10; a pure water utilization plant 20; an outdoor piping 30 for delivering pure water to the pure water utilization plant from the pure water production plant 10; and a delivery source temperature control device 40 forcontrolling the temperature of the delivery source of pure water at a delivery source target temperature. A data processing server 413 constructs a model for predicting a UA value from past meteorological data of the environs of the outdoor piping and operation record data such as water temperature and flow rate, and then calculates a UA prediction value by inputting, to the model, the most recent meteorological data of the environs of the outdoor piping and the most recent operating data. A heating temperature determination device 42 acquires the delivery source target temperature of pure water in accordance with the UA prediction value and a pure-water use destination target temperature. The heating temperature determination device 42 may be a device that is capable of determining boththe heating temperature and the cooling temperature.

The invention provides a unit user heating control system of a central heating system. Each unit user is provided with an indoor control unit, the indoor control unit comprises a set temperature management unit, a windowing monitoring unit, a room location management unit, a human body monitoring unit, a heating management unit, a floor monitoring unit and a data calculation unit, a heat meter isarranged at a heat pipe network inlet of a building in which the unit user is located, and heat shared by each unit user is calculated by the data calculation unit according to received data and datameasured by the heat meter. According to the method, the factors of room positions, persons, windowing and the like are considered, the charge is adjusted in the condition whether the heating reachesthe standard, and the maximum fair heating charge is realized, so that the heat charge is fairly and reasonably shared, the charge dispute is reduced, the relation between the heating party and the unit user is relaxed, and the method is easy to popularize and accept by the public.

The invention discloses an industrial salt residue pyrolysis method. The method comprises a salt residue pretreatment process and a salt residue pyrolysis process, and the salt residue pretreatment process is completed through the steps of salt residue crushing, salt residue pulping, homogenization, salt slurry storage, salt residue dehydration, salt residue drying and the like; and the pretreatedsalt slag passes through an automatic feeding system, a feed pyrolysis heater, a pyrolysis tower and a salt slag discharging heat exchanger, and the pyrolyzed salt slag is cooled, and then is fed into a follow-up brine making, brine refining and brine salt making system to complete the whole salt slag pyrolysis process. After the salt slag enters the pyrolysis tower, the salt slag is finally recovered to an original crystalline state, the temperature of the pyrolysis system is stable, the removal rate of organic matters in the salt slag is high, and the product can be regenerated and recycledand is green and environment-friendly.

The invention provides a photographic fixing device and an image forming device. The photographic fixing device includes a heat insulating device which is disposed on a heat roller and a pressure roller and internally has the heat insulating space therein to maintain heat generated by the heat roller, wherein the heat insulating device is provided with blocking portions at both ends in the lengthdirection, and the blocking portions are used for blocking the heat from being lost from both ends of the heat insulating device. The photographic fixing device is advantaged in that the heat insulating device can maintain the excess heat released by the heat roller in the printing process in the space formed through the heat insulating device, the retained heat remains in the insulated space of the heat insulating device and can be used for maintaining the temperature of the printing environment, so the heat supply of the heat roller to the printing environment is reduced, and thereby photographic fixing energy consumption is reduced.

The invention discloses a method for producing straw mushrooms by utilizing waste of pleurotus eryngii and flammulina velutipes. The method is characterized by comprising the following steps of: a) spraying water and wetting dregs of pleurotus eryngii and flammulina velutipes on a mushroom bed, uniformly mixing until water content is 80%, maintaining for 5-7 days, and turning over once at least during the period; b) mixing the mushroom dregs, wherein coverage thickness on the mushroom bed is 20-30cm; c) spraying water and wetting the mushroom dregs until the water content is 30-40%; d) sealing the mushroom dregs, increasing spatial temperature of a mushroom room, maintaining for 24 hours after the spatial temperature reaches 60-65 DEG C, and then naturally cooling; e) when the spatial temperature is reduced to 29-32 DEG C and material temperature is reduced to 35-40 DEG C, sowing straw mushrooms; f) spraying fruiting water when the spatial temperature is reduced to 28 DEG C and after the straw mushrooms are sown for 7 days; and g) fruiting, and harvesting. The method disclosed by the invention contains no pile forming or pile turning process, self produced heat is utilized for sterilizing and disinfecting raw materials, energy is saved, and production cost is reduced; and production cycle is short.

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 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.