173results about How to "Avoid temperature fluctuations" patented technology

The invention discloses an aerobic fermentation reaction system and method. The high-efficiency intelligent aerobic fermentation reaction system comprises an aerobic fermentation reactor, a circular water system, a gas intake and exhaust system, a detection system and a control system, wherein a water jacket is arranged outside a horizontal roller of the aerobic fermentation reactor; a material feeding and discharging hole and a gas intake and exhaust hole are respectively formed in sealing covers at two sides of the horizontal roller; the circular water system is connected and communicated with the water jacket on the horizontal roller; the gas intake and exhaust system is connected and communicated with the gas intake and exhaust hole in the sealing cover of the horizontal roller; a sensor of the detection system is arranged in the aerobic fermentation reactor and on a water passing pipe of the aerobic fermentation reactor; a signal output by the sensor is respectively connected with the control system; and the control system is used for controlling the circular water system, the gas intake and exhaust system, the aerobic fermentation reactor and external feeding and discharging conveying equipment. According to the high-efficiency intelligent aerobic fermentation reaction system and method disclosed by the invention, the occupied area is smaller and the fermentation efficiency is higher; no secondary pollution occurs; and the reduction, harmlessness and resourceful treatment of organic wastes can be quickly realized.

The invention discloses a refrigerator and a defrosting method thereof. A defrosting channel air inlet and a defrosting channel air outlet which are communicated with the outside are arranged at the back of a refrigerator body, the defrosting channel air inlet and the defrosting channel air outlet are arranged on the lower portion and the upper portion of an evaporator respectively, two groups of insulation devices are fixed to the defrosting channel air inlet and the defrosting channel air outlet respectively in a moving mode and are blocked to the defrosting channel air inlet and the defrosting channel air outlet respectively, or two groups of insulation devices are blocked to a duct air outlet and a duct air inlet respectively. By the aid of the refrigerator and the method, the heat exchange between the hot air outside the refrigerator body and the evaporator is conducted to defrost, the energy consumption is low, the refrigerator and the method are safe and reliable and things stored in the refrigerator body cannot be affected.

The invention provides an air-conditioner control system and a control method thereof; the air-conditioner comprises a low output running mode with relatively low output energy and a high output running mode with relatively high output energy; the air conditioner can be mutually switched between two running modes, and the control system comprises a detecting unit, a judging unit, and a control unit. The detecting unit is used for detecting an inner ring of indoor environment temperature T; the judging unit is used for calculating the inner ring-T setting I of delta T=IT, and judging if delta T is not more than T1, wherein T is set as the indoor setting temperature of the air conditioner, T 1 is setting value and any positive number; the control unit can run the air condition in low output running mode or high output running mode according to the judging result of the judging unit. Through the invention, the room temperature can slowly change when closing to the T setting scale, prevent exceeding the setting temperature for too fast drop or rise of room temperature, avoid frequent startup of compressor, effectively prevent fluctuation of indoor environment temperature, and improve the comfort level of the indoor environment.

The invention discloses a sampling and collecting system of SO3 in wet method desulphurization system tail flue gas. The system includes a probe for acquiring wet flue gas, a heating device connected with the probe and used for heating the wet flue gas, a dedusting device connected with the heating device and used for removing solid particles comprising dusts and the like in the flue gas, a condensing device connected with the dedusting device and used for condensing sulfuric acid steam in the flue gas, an examining device connected with the condensing device and used for examining whether the sulfuric acid steam collected in the condensing device reaches saturation and collecting the sulfuric acid steam in the flue gas when the saturation is realized, a drier connected with the examining device and used for removing water in the flue gas, an adjusting valve connected with the drier and used for adjusting the flow velocity of the flue gas to ensure that sampling is constant speed sampling, a vacuum pump connected with an outlet of the adjusting valve and used for pumping the flue gas, and a wet gas meter connected with an outlet of the vacuum pump and used for determining the flow, temperature and pressure of the flue gas and discharging the flue gas.

The invention relates to a garbage incinerator, in particular to a rotating dual-roller incinerator. The flue gas residual heat is used as a heating source of garbage drying. The natural air is used as the combustion improver for garbage burning. The consumption plan that the flying ash is used for absorbing dioxin and heavy metal and substituting the auxiliary fuel for combustion supporting and the absorbent is input to purify the glue gas is adopted. The methods of active prevention and the decomposition and elimination of the organic pollutant substitute the passive preventive measures after the generation of the pollutants. The rotating dual-roller incinerator enables the garbage burning and treatment to save resources and overcome the secondary pollution, realizes the coexistence of environment protection and economy, and achieves the dual purposes of energy saving and environment protection.

When a detection temperature by a hot-water tank thermister (42) has been equal to or lower than a re-heating determination temperature over at least a re-heating determination time, a tank controller (50) performs a sterilization process by heating hot water within a hot-water tank (31) by means of a heat pump unit (60); and when the detection temperature by the hot-water tank thermister (42) has been equal to or lower than a determination temperature for prohibiting the use of stored hot water over at least a determination time for prohibiting the use of stored hot water, the tank controller (50) performs only a temperature regulation control via heating while keeping a hot-water flow regulation valve (34) in a closed state.

An embodiment of the invention discloses an air conditioner and a dehumidification control method. The air conditioner comprises a heat exchanger, at least one first fan, at least one second fan and a controller. The heat exchanger comprises a first section and a second section. The first fans are arranged at positions corresponding to the first section. The second fans are arranged at positions corresponding to the second section. The controller is set to be the one controlling the first fans to operate at first rotating speed when dehumidification conditions are met so as to enable the first section performs dehumidification on air flowing through the first section and controlling second rotating speed of the second fans so as to regulate refrigerating capacity outputted from the second section, wherein the second rotating speed is larger than the first rotating speed. According to the embodiment that the fans are controlled in groups, one part of the fans can perform dehumidification at the preset rotating speed while the other part of the fans can be regulated in the rotating speed according to refrigeration requirements, the outputted refrigeration capacity can be regulated when the air is dehumidified, and temperature changes of surroundings of the air conditioner can be avoided.

To control fluctuation of blown air temperature of a heat exchanger to a small value without adding a movable mechanism such as a variable restricting valve, a heat exchanger for heating air by exchanging heat between hot water supplied from a water-cooling type engine and air, a flow control valve for controlling a hot water flow amount to the heat exchanger and a bypass circuit for allowing hot water to flow while bypassing the heat exchanger are provided. A pressure-responsive valve is provided on the bypass circuit and an opening degree of the bypass circuit corresponding to a pressure rise of the hot water is increased. The flow of returning hot water from the heat exchanger is blocked by the flow of the bypass side hot water at a merging portion where the bypass side hot water discharged from the pressure-responsive valve merges with the returning hot water discharged from the heat exchanger.

A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths.

The invention discloses a coating agent for refreshing bamboo shoots and a method for refreshing the bamboo shoots with shells. The coating agent for refreshing the bamboo shoots comprises chitosan, konjac glucomannan and iso-vitamin C. The method for refreshing the bamboo shoots with the shells comprises the steps of coating, cooling and refrigerating the bamboo shoots with the shells sequentially. The preservative bamboo shoots prepared by the method has the advantages of high whiteness and moisture content, little increment of crude fiber content, little reduction in the content of total sugar and vitamin C and little loss of nutrient substances in the bamboo shoots. The method effectively retards the ageing speed of the bamboo shoots and obviously prevents brown stain, dehydration, ageing and mildew.

The invention discloses an invisible intelligent full-automatic outer sun-shading system, comprising a roller shade box, wherein two ends of the roller shade box are connected to the wall by a head installing seat and a trail installing seat. The invisible intelligent full-automatic outer sun-shading system also comprises a plurality of roller shade pieces, wherein one end sof the roller shade pieces are connected to the roller shade box and the other ends are vertically arranged. The invisible intelligent full-automatic outer sun-shading system also comprises a temperature/light sensor, a controller, a clock controller, an electric rotating motor, an unrolling and rolling electric motor and a turning wheel which are sequentially electrically connected, wherein the clock controller, the electric rotating motor, the unrolling and rolling electric motor and the turning wheel are arranged in the roller shade box; and a leading cable is connected with the electric rotating motor, and one ends of the roller shade pieces are connected to the leading cable. The three-dimensional full-weather automatic control of the outer sun-shading system is realized, the heat-proof quality of the sun-shading system is effectively improved, most of sunlight heat can be reflected and shaded; the outer sun-shading system can avoid that the solar radiation directly enter into the indoor room, is beneficial to the prevention of the fluctuation of the indoor temperature, reduces the cold and hot load loss of the air-condition, greatly improves the heat insulation and daylighting performance of the common sun-shading system and the performance of the air-condition system, and achieves better energy saving effect.

The invention discloses a control method for preventing an indoor heat exchanger from frosting when a frequency conversion air conditioner operates in a refrigerating mode. The control method includes the steps that the coil pipe temperature Tm of the indoor heat exchanger is detected to serve as a judgment basis in the refrigerating process; a compressor starts in the normal state, and the frequency of the frequency conversion compressor rises slowly at the speed of 10 s/Hz to 15 s/Hz when the Tm drops to 8 DEG C to 9 DEG C; when the Tm drops to 3 DEG C to 5 DEG C, the compressor is kept to operate stably at the current frequency; when absorbed heat is slightly insufficient, the Tm drops to 1 DEG C to 2 DEG C, the frequency of the frequency conversion compressor is lowered slowly at the speed of 5 s/Hz to 10 s/Hz and does not stop being lowered until the Tm rises to 5 DEG C to 6 DEG C again, and then the compressor is kept to operate stably at the current frequency; when the absorbed heat is seriously not enough, and the Tm drops to be -1 DEG C to -2 DEG C, the frequency conversion compressor stops working. By means of the method, the temperature fluctuation of a room can be lowered.

The invention relates to a temperature control method of a plasma chemical vapor deposition base, comprising the following steps of: providing an plasma chemical vapor deposition base with a resistance wire and a target temperature for heating the base; acquiring the total temperature difference of the target temperature and the original temperature according to the original temperature of the base and the target temperature of the base to be heated; deciding the number of temperature gradients to be set and the numerical value range of temperatures in each temperature gradient according to the total temperature difference; and heating the resistance wire according to the set temperature gradients to sequentially increase the temperature of the base according to the numerical value range of the temperatures in the temperature gradients and controlling the temperature rise parameter of the last temperature gradient so that the fluctuation range of the base temperature after the base temperature reaches the target temperature satisfies the process requirement. By adopting the temperature control method, the fluctuation range of the base temperature after reaching the target temperature is small. An amorphous silicon membrane or a microcrystalline film formed by the temperature control method provided by the invention has high quality.

The invention belongs to the technical field of remote sensing applications and particularly relates to an improved diurnal temperature cycle model (IDTCM) based remote sensing ground surface temperature and time normalization method. The IDTCM based remote sensing ground surface temperature and time normalization method comprises the following steps that data pretreatment is performed, improvement is performed based on DTCM to obtain an IDTCM, remote sensing ground surface temperature and time normalization is performed and TASI aerial remote sensing ground surface temperature and time normalization is performed. By means of the method, the improved diurnal temperature cycle model is established, and the shortcoming that an existing model cannot overcome wind speed fluctuation is overcome. The remote sensing ground surface temperature and time normalization method is established based on the improved diurnal temperature cycle model.

The embodiment of the invention discloses a frequency regulating method and device for a compressor. The method comprises the following steps of: obtaining an outlet air temperature when the compressor normally works, and calculating ideal output power of a frequency converter when the outlet air temperature is within a preset range; and calculating ideal frequency according to a relationship between the ideal output power of the frequency converter and the frequency of the frequency converter, and regulating frequency of the frequency converter to ideal frequency. According to the embodiment of the invention, when the outlet air temperature is within the normal range, frequency of the compressor is timey regulated according to output power of the frequency converter, so that a response rate of the compressor is increased, and the temperature changing amplitude is reduced.

The invention discloses a refrigerating system with a continuous heating function and a defrosting control method. The refrigerating system comprises a multi-connected unit formed by connecting multiple outdoor units in parallel. A flow adjusting device is arranged on a pipeline, communicating with a heating mode outlet of a four-way valve, in each outdoor unit, when the system needs to carry outdefrosting operation, one outdoor unit is controlled to carry out defrosting operation, and the other outdoor units are kept under heating operation. The heating modes of indoor units can be kept during defrosting of the outdoor units, fluctuation of the indoor environment temperature is avoided, the use comfort of a user is guaranteed, the optimum use experience is brought for the user, and the problem that the indoor units stop heating during defrosting operation of the multi-connected unit is solved.

The invention discloses a constant-temperature control device for CCDs (charge coupled devices) of a spaceflight optical remote sensor. The constant-temperature control device comprises a micro heat pipe, the CCDs, a thin-film electric heater, a switching plate, a conventional heat pipe, a heat dissipation plate and a control circuit, wherein when the CCDs are switched off, the control circuit controls the thin-film electric heater to heat the micro heat pipe; the micro heat pipe simultaneously transmits generated heat to the CCDs and the heat dissipation plate; the heat dissipation plate dissipates redundant heat, so that the temperature of the CCDs can be kept constant; at the moment when the CCDs are switched on, the control circuit controls the thin-film electric heater to be powered off instantly, and redundant heat generated by the CCDs is dissipated by the heat dissipation plate, so that the temperature of the CCDs can be kept constant. According to the constant-temperature control device for the CCDs, power compensation is performed close to the CCDs, so that temperature fluctuation caused by temperature control delay and CCD power change can be avoided; therefore the temperature stability of the CCDs can be improved.

The present invention relates to the method of purifying waste gas containing water soluble organism, and is especially the method of purifying waste gas produced in polyester production. The waste gas produced in polyester production is first made to pass through adsorption homogenizer containing water and then catalytically combusting treated. In the adsorption homogenizer, the high boiling point organism, such as glycol, is absorbed, while the other organic components, such as acetaldehyde, is stabilized and homogenized. The said process can eliminate the high boiling point organism from polyester waste gas effectively to eliminate hidden trouble in safety and homogenize the other components for stable catalytic combustion.

The invention provides an air conditioner control method and an air conditioner. When the air conditioner is in the refrigeration mode, an inner unit electronic expansion valve is subjected to proportional adjusting according to the target superheat degree of an indoor unit, and the inner unit target superheat degree is changed correspondingly along with changing of the indoor environment temperature, changing of the set temperature and changing of the outdoor temperature. Accordingly, the control precision of the indoor environment temperature is improved, and the starting frequency of a compressor is decreased.

The invention discloses low temperature cooling equipment by taking a refrigerator as a cold source. The low temperature cooling equipment comprises a hood body provided with a vacuum cavity, a refrigerator and a liquid helium pond, a superfluid helium pond and a sample container arranged in the vacuum cavity. A condenser is arranged on a secondary cold head; the superfluid helium pond is locatedin a position below the liquid helium pond; an accommodating cavity of the liquid helium pond communicates to an accommodating cavity of the superfluid helium pond through a throttling pipeline; the sample container is located in a position below the superfluid helium pond, and the sample container is attached and fixed to the bottom surface of the superfluid helium pond; the equipment also comprises a main air inlet pipeline and a gas circulating pipeline; one end of the main air inlet pipeline is connected to helium supply equipment while the other end of the main air inlet pipeline is connected to the accommodating cavity of the liquid helium pond in a communicating manner; and one end of the gas circulating pipeline communicates to the accommodating cavity of an accommodating cavity ofthe superfluid helium pond while the other end of the gas circulating pipeline is connected to the main air inlet pipeline in a communicating manner. The low temperature cooling equipment disclosed by the invention can acquire 1.8K superfluid helium quickly by means of constant temperature high purity helium, is short in precooling time of a cooled sample and is convenient to cool a device needing an extremely low temperature quickly.

The invention relates to the field of control over gas stoves, and discloses a control method and device for a gas stove and the gas stove. The method comprises the steps of obtaining the set temperature of the gas stove; obtaining the cookware temperature of cookware heated by the gas stove; determining a first temperature threshold value, a second temperature threshold value and a preset heat power level according to the set temperature, wherein the second temperature threshold value is larger than the first temperature threshold value; determining that the cookware temperature is between the first temperature threshold value and the second temperature threshold value; determining the change trend of the cookware temperature; when the change trend shows that the cookware temperature rises, adjusting the heat power level of the gas stove to the minimum heat power level; and when the change trend shows that the cookware temperature falls, adjusting the heat power level of the gas stoveto the preset heat power level. In this way, the temperature in the cookware is maintained near the set temperature, so that constant temperature control over the cooking process is achieved.

Disclosed is a self-regenerative integrated device for the synergetic oxidation of low-concentration gas and ventilation gas in a coal mine. The integrated device comprises a metal shell (5). A honeycomb ceramic oxidation bed (13) is arranged within the metal shell (5) and divided into a regenerative section (40) and an oxidation section (41) by a heat exchange chamber (14). A first cavity between the regenerative section (40) and the inner wall of the metal shell (5) is divided into a first inlet chamber (6) and an exhaust chamber (8) by an inlet partition plate (7), a second cavity between the oxidation section (41) and the inner wall of the metal shell (5) is divided into a second inlet chamber (22) and a mixing chamber (20) by a partition plate (21) for averaging gas, and a plurality of gas nozzles (28) are provided on the partition plate (21) for averaging gas. An internal heat exchanger (35) is arranged within the heat exchange chamber (14), and a heat exchanger inlet (16) and a heat exchanger outlet (15) of the internal heat exchanger (35) are respectively connected with a boiler drum (18). The first inlet chamber (6) is connected with an inlet (1) of the ventilation gas through a proportional control valve (38), the second inlet chamber (22) is connected with an inlet (31) for extracting the low-concentration gas through a proportional mixer (33), and the proportional control valve (38) is connected with the proportional mixer (33) through a connecting pipeline (36). The two ends of an inlet preheating pipe (9) on the honeycomb ceramic oxidation bed (13) are respectively communicated with the first inlet chamber (6) and the mixing chamber (20).

The invention belongs to the technical field of agricultural product storage and fresh-keeping, and in particular to disclose an atmosphere-modified fresh-keeping method of Chinese magnoliavine. The method comprises the steps of picking Chinese magnoliavine, sorting, boxing, pre-cooling, carrying out anti-corrosive treatment, atmosphere-modified fresh-keeping and the like; and the key technology comprises the following steps: pre-cooling the Chinese magnoliavine to 3-5 DEG C, then warehousing in batches, wherein during warehousing, 0.01-0.08g of nisin is added to 1kg of Chinese magnoliavine in each box and is simultaneously irradiated with 450-500nm laser to achieve bacteriostasis and disinsection effects; and the parameter control of an air conditioned cold store is as follows: the temperature is 3+/-0.5 DEG C, the humidity is 95+/-2%, the concentration of O2 is 3-5%, and the concentration of CO2 is 2-5%. The atmosphere-modified storage and fresh-keeping of the Chinese magnoliavine is completed under the control of the key technology. The method solves the technical problem that the fresh Chinese magnoliavine fruit can not be stored for long, enables the fresh Chinese magnoliavine fruit to be stored for 3-5 months or even longer, has no quality degradation phenomena of browning, ageing and the like, and maintains favorable commodity quality and vendibility.