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34results about How to "Avoid highs and lows" patented technology

Refrigerating system for CCD (Charge Coupled Device) detector

The invention provides a refrigerating system for a CCD (Charge Coupled Device) detector, which comprises a cold plate, a semiconductor refrigerating sheet, a temperature sensor, a temperature controller and a conversion unit, wherein the cold plate is provided with a first face, a second face and a side wall; the cold face of the semiconductor refrigerating sheet is contacted with the first face of the cold plate, and the cold face cools the CCD detector through the second face of the cold plate; the temperature sensor is used for detecting the current temperature of the cold plate and outputting a temperature indicating signal; the temperature controller reads the current temperature of the cold plate according to the temperature indicating signal and compares the current temperature with the first predetermined temperature to obtain a control signal; and the conversion unit is used for adjusting the current temperature of the cold face to the first predetermined temperature selectively by supplying power to the semiconductor refrigerating sheet through a power supply according to the control signal. According to the refrigerating system, the temperature of the CCD detector can be freely controlled, so that influence of high temperature on the CCD detector is reduced. In addition, the temperature of the CCD detector is ensured to change stably through the cold plate, so that the service life of the CCD detector is prolonged.
Owner:北京中科美伦数字技术股份公司

Tail gas detection and absorption device for nitric acid production and installation method thereof

The invention discloses a tail gas detection and absorption device for nitric acid production and an installation method thereof. Two gas outlets of a three way pipe are connected to a detection pipeline and an absorption pipeline respectively. The detection pipeline is connected to a gas drier. The gas drier is connected to a mixing box. The mixing box is externally provided with a thermal insulation jacket. The mixing box is connected to a booster pump. The booster pump is connected to a detection cavity. A pressure stabilizing valve is arranged on the pipeline that connects the booster pump and the detection cavity. A nitrogen monoxide probe and a nitrogen dioxide probe are arranged in the detection cavity. The nitrogen monoxide probe and the nitrogen dioxide probe are connected to a micro controller. A wireless module is arranged on the micro controller. The micro controller is connected to a display screen through the wireless module. The absorption pipeline is connected to an alkali liquid absorbing box. An electromagnetic valve is arranged on the absorption pipeline. The electromagnetic valve is connected to the micro controller. A communication pipe is arranged between the absorption pipeline and the detection cavity. A non-return valve is arranged on the communication pipe. The structure is simple, the device is user-friendly, the detected data is accurate, the detection and absorption are combined, the absorbing effect is good, and the pollutant discharge is reduced.
Owner:TIANJIN CITY PO MOIST CHEM

Terrain-imitating cutting table for sugarcane harvester

The invention discloses a terrain-imitating cutting table for a sugarcane harvester. The cutting table comprises a harvester body and a cutting table assembly, wherein the cutting table assembly comprises a cutting part, a control part and a power part; the power part comprises a hydraulic motor and a hydraulic motor base; the hydraulic motor is arranged on the hydraulic motor base; the cutting part comprises a cutter head and a cutting blade, wherein the cutter head is mounted under the hydraulic motor base, and a base is arranged at the bottom of the cutter head and is hemispherical; the control part comprises a swinging arm, an air spring and a swinging limiting seat, wherein a lower swinging arm pin is arranged at the lower end of the swinging arm, and the other end of the lower swinging arm pin is connected with a movable pin of the hydraulic motor base; an upper swinging arm pin is arranged at the upper end of the swinging arm, and the other end of the upper swinging arm pin is connected with a movable pin on a suspension fork of the harvester body; and the swinging limiting seat is mounted at the upper end of the swinging arm, and the air spring is connected with the swinging arm through the swinging limiting seat. The terrain-imitating cutting table disclosed by the invention adopts a unique terrain imitating technique for harvesting sugarcane.
Owner:王剑 +1

Plate heat exchanger with water storage tank

The invention discloses a plate heat exchanger with a water storage tank. The plate heat exchanger comprises a heat exchange body, a water tank body and a water outlet pipe, wherein the heat exchangebody is provided with a bathroom water flow channel, a heating water flow channel, a bathroom water inlet channel, a bathroom water outlet channel, a heating water inlet channel and a heating water outlet channel; the water tank body comprises a second plate body, a water tank plate set, a third plate body and a fourth plate body; the water tank plate set is provided with a first flow channel, a second flow channel, a first inlet channel, a first outlet channel, a second inlet channel and a second outlet channel; the second plate body is provided with a communication opening; the third plate body is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet; a first fluid channel and a second fluid channel are arranged between the fourth plate body and the third plate body; the water outlet pipe is inserted in a communication channel formed by the bathroom water outlet channel, the communication opening and the first water inlet channel in amatched manner; and a circulation gap is formed between the communication channel and the water outlet pipe. By means of the heat exchanger, the problem that bathroom water is high and low can be effectively solved.
Owner:NINGBO HRALE PLATE HEAT EXCHANGER

Intelligent electronic constant-temperature water heater

The invention discloses an intelligent electronic constant-temperature water heater. The intelligent electronic constant-temperature water heater comprises a shell, wherein a wind pressure switch, a controller, an air inlet solenoid valve, a water outlet temperature probe, an electronic constant-temperature valve, a water outlet, a gas volume adjustment knob, a gas inlet, a pressure release valve,a water inlet, a water quantity adjustment knob, a water flow sensor, a combustor, a heat exchanger, a temperature controller and an air blower. The intelligent electronic constant-temperature waterheater has the advantages of reasonable structure and high practicability; an electronic constant-temperature valve is additionally mounted based on an original water heater; when the water heater isstarted, hot water flowing out of the water heater flows into the electronic constant-temperature valve; the constant-temperature valve can automatically carry out calculation according to a temperature set by a user in advance; and through adjustment of cold water and hot water, the water at the temperature set by the user flows out of the water heater, so that an appropriate bath temperature isachieved, and the situation that the water temperature is sometimes hot and sometimes cold and is sometimes high and sometimes low when the water heater is used under a condition of no constant temperature is avoided. The water heater is automatically constant in temperature, so that convenience for bathing is greatly improved.
Owner:王智勇

Wind speed control method and device for air conditioner system and electronic equipment

The invention relates to the technical field of air conditioners, in particular to a wind speed control method and device for an air conditioner system and electronic equipment. The wind speed controlmethod for the air conditioner system comprises the following steps that a current return air temperature difference value of the air conditioner system is obtained; if the current return air temperature difference is less than the first difference threshold value, an instruction for adjusting the opening of a cooling water control valve is issued to control the current return air temperature difference to be within the target return air temperature difference; and if the current return air temperature difference is greater than or equal to the first difference threshold value, an instructionfor adjusting the opening of the cooling water control valve to the maximum is issued, and an instruction for adjusting the wind speed of a fan is issued to control the current return air temperaturedifference to be within the target return air temperature difference. By the adoption of the scheme, the energy consumption in the process of adjusting the return air temperature difference can be reduced, and the service life of the air conditioner system is prolonged; and the scheme can be used for environmental management in spaces such as machine rooms.
Owner:PING AN TECH (SHENZHEN) CO LTD

Motor rotating speed control method for food processor

The invention provides a motor rotating speed control method for a food processor. The motor rotating speed control method comprises the steps: acquiring the actual rotating speed of a motor; determining the number of chopping points of an alternating-current half-wave according to the power modulation precision and the total work of the alternating-current half-wave, and uniformly dividing the alternating-current half-wave through the chopping points; and acquiring an alternating current zero crossing point, comparing an actual rotating speed of the motor with a preset rotating speed, determining a target chopping point corresponding to the alternating current half-waves according to a comparison result of the actual rotating speed of the motor and the preset rotating speed, and controlling conduction from the target chopping point of the alternating current half-wave. In the scheme, the alternating-current half-wave is uniformly divided. When the rotating speed of the motor of the food processor is modulated, stepless smooth adjustment of the power can be achieved, namely, equal-power control is carried out, the rotating speed of the motor of the food processor is prevented frombeing changed suddenly, and the user experience degree is improved.
Owner:JOYOUNG CO LTD

Air conditioner control method, device, air conditioner and computer readable storage medium

ActiveCN108662723BAvoid high and low frequenciesAvoid large indoor temperature changesMechanical apparatusSpace heating and ventilation safety systemsControl engineeringElectric consumption
The invention discloses a method for controlling an air conditioner. The method comprises the steps that when the air conditioner is started to operate, the current domestic electricity consumption total current is acquired; an electricity consumption function control area where current domestic electric consumption is located is judged; and when the electricity consumption function control area where current domestic electricity consumption is located is a frequency control area, a frequency control parameter based on the function control area is acquired, and the air conditioner is controlled to operate according to the frequency control parameter. The invention further discloses a device for controlling the air conditioner, the air conditioner and the computer readable storage medium. The air conditioner is controlled to operate according to the corresponding frequency control parameter acquired through the electricity consumption function control area determined by the domestic electricity consumption total current, the frequency of the air conditioner is adjusted progressively, frequency extremes are avoided, and then the beneficial effect of preventing indoor temperature changes from being too large is achieved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

A reaction device and method involving methane-water-gas exchange

ActiveCN104749323BAvoid local mixingAvoid errorsMaterial analysisWater vaporThermostat
The invention discloses a reaction device and method involving methane water-vapor exchange. The device comprises a constant temperature device, a bubbling device, a reactor and a measuring device, wherein the constant temperature device comprises a thermostat, a water inlet device and a water outlet device; the bubbling device consists of an air blower, an exhaust plate and a fan; air holes are uniformly formed in the exhaust plate, so that a water sample in the reaction container is fully exchanged with air; the reactor refers to a hollow cylinder with a cover; small holes are formed in the rubber cover and the side walls; the whole reactor is arranged in the constant temperature device in a sleeving manner; the water sample enters the reactor from a water inlet pipe; the measuring device consists of a greenhouse gas analyzer, an air inlet pipe and an air outlet pipe; gas in the reaction container is delivered to the greenhouse gas analyzer to be analyzed by virtue of the air inlet pipe and enters the reactor by virtue of the air outlet pipe after the analysis is finished, so that the environment conditions in the reactor are constant. The device disclosed by the invention is reliable in performance, simple in structure, convenient to manufacture, difficult to damage, low in cost and simple and convenient to operate in field.
Owner:CHINA THREE GORGES UNIV

Air-conditioning system wind speed control method, device and electronic equipment

The present application relates to the technical field of air conditioning, and in particular to a wind speed control method, device and electronic equipment for an air conditioning system. The wind speed control method of the air conditioning system includes: acquiring the current return air temperature difference of the air conditioning system; if the current return air temperature difference is less than the first difference threshold, issuing an instruction to adjust the opening of the cooling water control valve for Control the current return air temperature difference to reach the target return air temperature difference; if the current return air temperature difference is greater than or equal to the first difference threshold, issue an instruction to adjust the opening of the cooling water control valve to the maximum, and issue an instruction to adjust the fan speed, It is used to control the current return air temperature difference to reach the target return air temperature difference. The solution provided by this application is beneficial to reduce energy consumption in the process of adjusting the return air temperature difference and prolong the service life of the air conditioning system. This solution can be used for environmental management in spaces such as computer rooms.
Owner:PING AN TECH (SHENZHEN) CO LTD

Method and device for controlling air conditioner, air conditioner and computer readable storage medium

ActiveCN108662723AAvoid high and low frequenciesAvoid large indoor temperature changesMechanical apparatusSpace heating and ventilation safety systemsElectricityElectric consumption
The invention discloses a method for controlling an air conditioner. The method comprises the steps that when the air conditioner is started to operate, the current domestic electricity consumption total current is acquired; an electricity consumption function control area where current domestic electric consumption is located is judged; and when the electricity consumption function control area where current domestic electricity consumption is located is a frequency control area, a frequency control parameter based on the function control area is acquired, and the air conditioner is controlled to operate according to the frequency control parameter. The invention further discloses a device for controlling the air conditioner, the air conditioner and the computer readable storage medium. The air conditioner is controlled to operate according to the corresponding frequency control parameter acquired through the electricity consumption function control area determined by the domestic electricity consumption total current, the frequency of the air conditioner is adjusted progressively, frequency extremes are avoided, and then the beneficial effect of preventing indoor temperature changes from being too large is achieved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Automobile fuel gauge display strategy compatible with various road conditions

An automobile fuel gauge display strategy compatible with various road conditions comprises the steps that firstly, a vehicle is self-detected, the indication of a fuel gauge is detected to be correct, and meanwhile signals of a fuel level sensor can be received, secondly, the mode of the fuel gauge is judged according to the rotating speed of an engine and the running speed of the vehicle, and thirdly, the mode of an idle speed is judged. In the first step, in the driving mode, signals of the oil level sensor are collected with 15 s as a period, and an indicated value of the oil gauge is obtained through calculation; in the driving mode, signals of the oil level sensor are collected with 10 s as a period, and the indicated value of the oil gauge is obtained through calculation. According to the design, computer-aided calculation can be carried out through the combination instrument, the display stability and accuracy of the fuel gauge are effectively improved, the situation that the fuel gauge displays incorrectly due to the fact that the fuel tank is not located at the horizontal position under various road conditions such as the uphill road section and the downhill road section can be avoided, and the display accuracy of the fuel gauge is effectively improved.
Owner:DONGFENG AUTOMOBILE COMPANY

cooling system for ccd detector

The invention provides a refrigerating system for a CCD (Charge Coupled Device) detector, which comprises a cold plate, a semiconductor refrigerating sheet, a temperature sensor, a temperature controller and a conversion unit, wherein the cold plate is provided with a first face, a second face and a side wall; the cold face of the semiconductor refrigerating sheet is contacted with the first face of the cold plate, and the cold face cools the CCD detector through the second face of the cold plate; the temperature sensor is used for detecting the current temperature of the cold plate and outputting a temperature indicating signal; the temperature controller reads the current temperature of the cold plate according to the temperature indicating signal and compares the current temperature with the first predetermined temperature to obtain a control signal; and the conversion unit is used for adjusting the current temperature of the cold face to the first predetermined temperature selectively by supplying power to the semiconductor refrigerating sheet through a power supply according to the control signal. According to the refrigerating system, the temperature of the CCD detector can be freely controlled, so that influence of high temperature on the CCD detector is reduced. In addition, the temperature of the CCD detector is ensured to change stably through the cold plate, so that the service life of the CCD detector is prolonged.
Owner:北京中科美伦数字技术股份公司

Environment-friendly household waste briquetting machine

The invention discloses an environment-friendly household waste briquetting machine. The environment-friendly household waste briquetting machine comprises an installation rack, a bucket, first bufferbuckets, second buffer buckets and collecting buckets, wherein the bucket is installed on the top of the installation rack, two discharging outlets are formed in the bottom of the bucket, the two buffer buckets are installed on the portion, below the discharging outlets, in the installation rack, the second buffer buckets are installed on the portions, below the first buffer buckets, in the installation rack respectively, and the collecting buckets are installed on the portions, below the second buffer buckets, in the installation rack. By means of the environment-friendly household waste briquetting machine, it is ensured that the size of wastes added to an inner box is mastered under the condition that the volume of the inner box keeps unchanged, the wastes are easily briquetted with the lowest energy, and the running energy loss of the device is reduced. Paddle pieces paddle the wastes on the top side in the inner box along with the rotation of a rotary base, the wastes on the bottom are leveled, the situation that the wastes in the inner box are stacked ups and downs is avoided, it is ensured that after subsequent briquetting, the wastes are compacted, and the loose situationis avoided.
Owner:佛山市顺德区大钲永乐环保有限公司

Gas reservoir sand control screen dynamic corrosion simulation device, simulation method and evaluation method

ActiveCN109632614BSimulate the maximumAvoid Stress Highs and LowsWeather/light/corrosion resistanceThermodynamicsPetroleum oil
The invention relates to a dynamic corrosion simulation device for sand control screens in gas reservoirs, a simulation method and a method for evaluating the dynamic corrosion performance of sand control screens. The simulation device includes a screen corrosion simulation module, a high-pressure gas pumping module, and an exhaust module; the high-pressure gas The outlet of the pumping module is connected to the gas inlet of the screen corrosion simulation module, and the exhaust module is connected to the gas outlet of the screen corrosion simulation module; the screen corrosion simulation module includes a simulated wellbore provided with a manhole cover , sand control screen, electric heating jacket and temperature controller, and the sand control screen is located in the simulated wellbore. The device of the present invention comprehensively and systematically simulates the dynamic corrosion of sand control screens under dynamic flow conditions, and simulates the elements of high pressure, high temperature, partial pressure of corrosive gas, flow rate of corrosive gas, flow rate of liquid and impact of sand grains, and can better simulate Actual dynamic flow in oil and gas unconsolidated sandstone reservoirs and gas hydrate reservoirs.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
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