36results about How to "Guaranteed cooling and heating effect" patented technology

The invention discloses a multiple online control method and system. The method comprises the steps that the set temperature and the indoor environment temperature of each indoor unit are obtained, and the temperature difference is calculated; the comprehensive temperature difference is calculated; a refrigeration modification value ETS/a heating modification value CTS is calculated according to the comprehensive temperature difference; and the evaporation temperature/condensation temperature is modified, and the frequency of each compressor is adjusted. According to the multiple online control method, the frequency of each compressor is adjusted according to the modified evaporation temperature/refrigeration temperature, energy is saved, and meanwhile the refrigerating/heating effect of each indoor unit can be guaranteed. When the requirement for each indoor unit is low, the frequency of the corresponding compressor is reduced, the corresponding compressor runs at the low frequency and is kept running with the low output in a low energy consumption manner, the corresponding compressor is protected against start stop, and accordingly power rise caused by start stop of the corresponding compressor is avoided. Meanwhile, the indoor units continuously run, so that the indoor temperature is maintained near the set temperature, the constant indoor temperature is achieved, a good refrigerating/heating effect is guaranteed, and the comfort degree is improved.

The invention discloses an air conditioner starting and operating at low voltage and a control method thereof. The air conditioner comprises a compressor, a voltage detection unit, a controller and an electric control component, wherein input voltage is electrically connected with the controller through the voltage detection unit; the controller is electrically connected with the compressor through the electric control component; four binding posts are arranged on the compressor, namely a main winding, a secondary winding, a first common terminal and a second common terminal; and the second common terminal is a tap extending from the main winding of the compressor. When the air conditioner starts, the voltage detection unit detects the input voltage, and an initial operating state of the air conditioner is determined according to the detected input voltage; during operation, the voltage detection unit detects the input voltage, and operation switching of the air conditioner is determined according to the detected input voltage when the voltage greatly fluctuates, namely the first common terminal is connected/disconnected with the second common terminal; and the invention has the characteristic that: the air conditioner can normally and stably start and operate at low voltage and has a wide application range.

The present invention relates to an air conditioner fan control method, system and air conditioner, wherein, the control method includes acquiring the current wind gear of the fan in the air conditioner; acquiring a parameter representing the clogging degree of the filter component in the air conditioner; and judging the clogging degree of the filter component Whether the parameter exceeds the allowable threshold under the current wind gear, if yes and the current wind gear is not the highest wind gear, increase the current wind gear by one gear. This control method can increase the air volume by increasing the windshield when the filter parts of the air conditioner are seriously blocked, so as to prevent the air conditioner from entering the anti-freezing, anti-high temperature or compressor protection state, thereby ensuring the cooling and heating effect of the air conditioner. Improve the comfort of use; but also ensure the reliability of the compressor, so as to improve the service life of the whole machine.

The invention relates to the technical field of air conditioners, in particular to a control method for an air conditioner. The control method for the air conditioner aims at solving the problems of low universality and poor user experience in an existing control method for the air conditioner. For the purpose, the control method comprises the following steps: calculating the temperature difference between an indoor environment temperature and a set temperature; calculating the valve closing speed of an expansion valve according to a first fitting formula; calculating the frequency-increasingspeed of a compressor in a frequency-increasing stage according to a second fitting formula; controlling the expansion valve to be closed to reach a target opening degree according to the valve closing speed; and controlling the compressor to carry out frequency increasing according to the frequency-increasing speed while the expansion valve is closed to reach the target opening degree according to the valve closing speed. Through the control manner, the control method for the air conditioner is capable of improving the universality of the air conditioner and improving the use experience of auser.

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner. Through the control method, the problems of poor universality and poor user experience existing in an existing air conditioner control method can be solved. The control method comprises the steps that the temperature difference between indoor environment temperature and the set temperature is calculated; according to a fitting formula, frequency raising speed of a compressor in the frequency raising stage is calculated; and the compressor is controlled to raise frequency according to the frequency raising speed, specifically, the fitting formula is determined according to the corresponding relation between the temperature difference and the frequency raising speed of the compressor. The fitting formula is determined in advance, then the frequency raising speed of the compressor in the frequency raising stage is calculated according to the fitting formula, and thenthe compressor is controlled to raise the frequency according to the frequency raising speed. Through the control method of the air conditioner, the universality of the air conditioner and use experience of a user can be improved.

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner. The control method of the air conditioner aims to solve the problems of pooruniversality and poor user experience of an existing control method of the air conditioner. The control method includes the steps that a temperature difference between the indoor ambient temperature and the set temperature is calculated; a valve closing speed of an expansion valve is calculated according to a first fitting formula; an accelerated speed of an external fan is calculated according toa second fitting formula; a frequency ascending speed of a compressor in a frequency ascending stage is calculated according to a third fitting formula; the expansion valve is controlled to be closedto a target opening degree according to the valve closing speed; the external fan is controlled to accelerate to a target rotational speed according to the accelerated speed; and preferably, the compressor is controlled to perform frequency ascending according to the frequency ascending speed when the expansion valve is closed to the target opening degree and the external fan speeds up to the target rotational speed. According to the control mode, the control method of the air conditioner can improve the universality of the air conditioner and improve the use experience of a user.

The invention discloses a method for cooling stainless steel slag in a tank, which belongs to a stainless steel production process. The method comprises: discharging stainless steel slag into a slag tank, transporting the stainless steel slag to a slag field and naturally cooling (standing for air cooling) for 36 to 42 hours; hoisting the slag tank to a water pumping and hot stewing workshop, and performing water pumping and hot stewing for 18 to 24 hours, wherein the flow of the water pumping spray is 0.8 to 1.3 ton/h; and turning cooled stainless steel slag in the tank, wherein the content of red slag is reduced to less than 10 percent, and the left over 90 percent of stainless steel slag can be directly subjected to steel slag treatment, crushing and magnetic separation and favorable metals including iron, chromium and nickel are recovered. When the method is used, the cooling and hot stewing effect of the stainless steel slag is ensured, safety hazards are eliminated, the red slag content in the stainless steel slag is reduced to less than 10 percent, and direct on-line treatment capacity reaches over 90 percent.

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner. Through the control method, the problems of poor universality and poor user experience existing in an existing air conditioner control method can be solved. The control method comprises the steps that rotation speed of an inner fan is obtained; according to a fitting formula,frequency raising speed of a compressor in the frequency raising stage is calculated; and the compressor is controlled to raise frequency according to the frequency raising speed, wherein the fittingformula is determined according to the corresponding relation between the rotation speed of the inner fan and the frequency raising speed of the compressor. The fitting formula is determined in advance, then the frequency raising speed of the compressor in the frequency raising stage is calculated according to the fitting formula, and then the compressor is controlled to raise the frequency according to the frequency raising speed. Through the control method of the air conditioner, the universality of the air conditioner and use experience of a user can be improved.

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner. Through the control method, the problems of poor universality and poor user experience existing in an existing air conditioner control method can be solved. The control method of the air conditioner comprises the steps that rotation speed of an inner fan is obtained; accordingto a first fitting formula, accelerated speed of an outer fan is calculated; according to a second fitting formula, frequency raising speed of a compressor in the frequency raising stage is calculated; the outer fan is controlled to accelerate to the target rotation speed according to the accelerated speed; and preferably, the compressor is controlled to raise frequency according to the frequencyraising speed while the outer fan accelerates to the target rotation speed according to the accelerated speed. Through the control mode, the control method of the air conditioner can improve universality of an air conditioner and improve use experience of a user.

The invention relates to a ducted air conditioner air guide device and a control method thereof. The control method of the ducted air conditioner air guide device comprises the following steps that S1, a ducted air conditioner is started, and an air guide strip at an air outlet of the ducted air conditioner is controlled to be rotationally opened according to a preset air guide angle; S2, the running current of a motor and the actual static pressure are detected through a current detection unit and a wind pressure detection unit respectively, and the detected values are transmitted to a controller; S3, the controller compares the motor running current and the actual static pressure obtained through detection with the rated current and the rated static pressure respectively; and S4, the controller correspondingly adjusts the air guide angle of the air guide strip by controlling the swing motor according to the comparison result in the step S3.

The invention provides air treatment equipment. The air treatment equipment comprises an air heat exchanger, a filter which is arranged outside the air inlet end of the air heat exchanger and comprises a filter screen, a power source arranged between the air heat exchanger and the filter, and a cleaner arranged outside the air inlet end of the filter and used for cleaning the filter screen. According to the air treatment equipment, the filter can be arranged in front of the air heat exchanger and used for filtering oil smoke in air and guaranteeing the cleanliness of output air, meanwhile, the cleaner is arranged at the air inlet end of the air heat exchanger, and the cleaner is used for cleaning the filter screen and guaranteeing the cleanliness of the filter screen.

The invention relates to a purification type fan coil unit. The purification type fan coil unit comprises a fan coil, an air return box body is arranged on the air return side of the fan coil, the airreturn box body is in a rectangular box shape, the lower end and the inner side of the air return box body are open, the inner side of the air return box body is connected with a fan plate of the fancoil, so that a fan of the fan coil is arranged in the air return box body, and a filtering device is arranged at the lower end of the air return box body, so that air entering the air return box body is purified. According to the purification type fan coil unit, the design is reasonable, the structure is simple, use is convenient, and the air can be rapidly and effectively purified on the premise that the refrigerating and heating effects are guaranteed; and moreover, the operation energy consumption of the unit is not increased, the assembly and disassembly are very convenient, and the market requirements are fully met.