217results about How to "Improve cooling and heating effect" patented technology

The invention provides a heat tower heat pump, mainly consisting of a cold / heat source absorption device closed heat tower and a low-temperature heat tower elevating device low-temperature heat source heat pump. The invention can be used as an efficient water evaporation cooling device in summer and an efficient broadband frost-free air source heat pump in winter, realizing cooling in summer and heating in winter, capable of supplying hot water for households; thereby the invention can be used for the three purposes.

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 a water system multi-online control method and system. The method comprises the steps that the total horsepower of all started indoor units is calculated; the average temperature difference of all the started indoor units is calculated every other set time; the difference value of the average temperature difference is calculated; the set temperature corrected value is calculated; the target set water temperature is calculated; and operation of a compressor is adjusted according to the target set water temperature. The user set water temperature is corrected through the set environmental temperatures, the actual environmental temperatures and the capacity horsepower of the started indoor units, operation of the compressor is adjusted according to the target set water temperature, the cooling / heating speed is increased, the cooling / heating effect is rapidly improved, and the problem that in the prior art, the cooling / heating speed is low is solved; when the actual environmental temperatures of the indoor units do not reach the set environmental temperatures, the user set water temperature is corrected, the cooling / heating speed is increased, and the cooling / heating effect is rapidly improved; and when the actual environmental temperatures of the indoor units reach the set environmental temperatures, the user set water temperature is corrected, energy waste is avoided, energy conservation and environmental protection are achieved.

The invention discloses a combined alternation operation method and device of outdoor units and a VRV system. The method comprises the following steps that 1, a plurality of combination modes of the outdoor units are determined according to the current power-on indoor unit capacity; 2, priority ranking is carried out on the plurality of combination modes according to a preset rule; and 3, the outdoor units are operated in an alternating mode according to the ranked combination modes. According to the method, efficient combination modes of the outdoor units are determined according to the current power-on indoor unit capacity and the capacity of each outdoor unit, the efficient alternation operation scheme is determined through priority ranking, and therefore the energy efficiency of the system during partial-load operation can be improved, the purpose that the optimal refrigerating and heating effects are achieved while the operation cost is saved is achieved, and the effective servicelife of the units is prolonged.

The invention relates to a dual-purpose cooling and heating air-conditioning system and a valve opening control method of the multiple air-conditioning system that connect multiple indoor units to one outdoor unit. When the operating capacity changes or when the operation starts, it can shorten the tracking The optimal opening time of the electronic expansion valve. The specific solution is: the compound air-conditioning system targeted by the control method has multiple indoor units and electronic expansion valves capable of adjusting the degree of superheat and subcooling of the refrigerant flowing into the multiple indoor units, and the above-mentioned electronic expansion valves After the opening is adjusted to a predetermined initial value, judge whether it is the optimal opening. If it is the optimal opening, then judge whether the current opening of the above-mentioned electronic expansion valve is within the range of the initial value. When the current opening is outside the range of the initial value At this time, the deviation between the current opening and the initial value is calculated, and the initial value is corrected using the calculated deviation, thereby controlling the opening of the electronic expansion valve.

The invention discloses a solar energy and air energy ground source air conditioning plant with a geothermy balance and energy storage device, which comprises a solar energy thermal collector, an air source cooling tower, a heat pump unit, an underground laid pipe, an air conditioning user end, a water replenishing device, a motor-operated valve and a water pump, wherein the heat pump unit, the underground laid pipe, the water replenishing device, the motor-operated valve and the water pump are connected to form a main loop of a unit side; the solar energy thermal collector, the motor-operated valve and the water pump form an auxiliary thermal collection loop which is accessed into the main water supply loop of the unit side; the air source cooling tower, the motor-operated valve and the water pump form an auxiliary cooling loop which is accessed into the main water supply loop of the unit side; and the heat pump unit, the motor-operated valve, the water pump and the air conditioning user end are connected to form a user side loop. According to the solar energy and air energy ground source air conditioning plant, geothermy energy, solar energy and air energy are fully utilized to refrigerate or heat, and the solar energy and air energy ground source air conditioning plant has the advantages of environment protection, energy saving, low energy consumption and low operation cost.

The invention provides an indoor unit of an air conditioner and an airflow control method thereof. The indoor unit of the air conditioner and the airflow control method thereof can solve the problems that the circulation and convection effect between air output by air conditioners and indoor air is poor in the refrigeration process of indoor units, balance of the indoor temperature is difficult and the comfort level is low in the prior art. The indoor unit of the air conditioner comprises a shell, a framework, an evaporator, a fan, an air outlet and an air guide plate, an air suction port is formed in the bottom side surface of the framework, an air suction channel is formed in the back of the framework, an air inlet is formed in the top of the shell, a top panel used for opening or closing the air inlet is arranged on the top of the shell, and a first drive part used for driving the top panel to open or close the air inlet is installed in the shell. According to the indoor unit of the air conditioner and the airflow control method thereof, flowing circulation can be formed between the air output by the air conditioner and the indoor air both in the refrigeration process and the heating process, the air output by the air conditioner and the indoor air can be fully mixed, and the comfort level can be increased; in the refrigeration process, the top panel closes the air inlet, indoor hot air enters the air conditioner from the air suction port in the lower part for participating in heat exchange, top hot air close to the roof does not participate in heat exchange, and therefore the energy conservation effect is greatly improved, and the energy consumption is lowered.

The invention discloses a method for achieving temperature control in an elevator car and an elevator system. The method comprises the steps that based on an elevator car controller, a user command isreceived and comprises a temperature control command; based on a temperature sensor, the current temperature in the elevator car is obtained; the magnitude and plus-minus relations between the current temperature and the temperature value in the temperature control command are judged, and based on the magnitude relation and the plus-minus relation, a semiconductor cooler work command and / or an air capacity control command are / or generated; the air capacity control command is sent to a motor driving a cross flow fan to work, so that the motor drives the cross flow fan to work; and the semiconductor cooler work command is sent to a semiconductor cooler, so that the semiconductor cooler works according to the semiconductor cooler work command. According to the method for achieving temperature control in the elevator car and the elevator system, the semiconductor refrigeration and heating effects can be controlled for the elevator car.

The invention discloses a heating and refrigerating control system for a chair. The heating and refrigerating control system comprises a fan, a semiconductor energy device, a pipeline system and a control circuit, wherein the fan, the semiconductor energy device and the pipeline system are sequentially connected, the semiconductor energy device is used for converting electric energy into heat energy to heat or refrigerate air generated by the fan; the control circuit comprises a central control unit, a temperature sensing unit and a touch input unit, and the central control unit is connected with the temperature sensing unit and the touch input unit respectively. The heating and refrigerating control system has the following beneficial effects that by adopting a touch control technology, the heating and refrigerating system is conveniently controlled; by adopting a gravity sensing technology, the heating and refrigerating system intelligently works, and is energy-saving and environmentally friendly; by making a brand-new design on the structure of the pipeline system, the heating and refrigerating effect is improved, and the energy consumption is reduced.

The invention discloses a mute control method of an air conditioner. The mute control method comprises the following steps: when an operation mode is a mute mode, controlling rotary speeds of a compressor and an indoor draught fan to be reduced; when the environment temperature does not reach pre-set temperature, judging whether an actual noise value is less than a pre-set noise value or not; if not, reducing the rotary speeds of the compressor and the indoor draught fan; if so, raising the rotary speeds of the compressor and the indoor draught fan; judging whether the environment temperature reaches the pre-set temperature or not. According to the mute control method, whether the environment temperature reaches the pre-set temperature or not and whether the actual noise value is less than the pre-set noise value or not are judged in real time in a whole control flow, so that shutdown or startup of the compressor and the indoor draught fan, and increasement or reduction of the rotary speeds are controlled; noises are reduced, the refrigeration and heating effects are improved and the user experience is improved; the market competitiveness of the air conditioner is improved.

The invention provides a method for improving the heating and cooling effect of an air-conditioner. According to the method, the optimal refrigerant flow of each indoor unit is obtained through the detection of the relationship between refrigerant flow values and the indoor temperature and the coiler temperature and the adjustment of the opening degree of an electronic expansion valve, mistaken adjustment occurring when the evaporating temperature is changed significantly is avoided, and meanwhile, the specific flow of each indoor unit can be learned. Due to the fact that the refrigerant flow of corresponding indoor units is optimal, energy is saved, and the heating and cooling effect is good.

The invention discloses an air conditioner and a dust removal control method and device of an indoor unit of the air conditioner. The method comprises the steps that the dust thickness of the indoor unit is acquired through a dust thickness detecting device; according to the dust thickness, a target dust removal control mode needing to be executed by the air conditioner is determined, wherein thetarget dust removal control mode comprises the reverse rotating speed and operation time of an indoor fan; and the air conditioner is controlled to carry out dust removal on the indoor unit accordingto the target dust removal control mode. Therefore, dust removal detection and rust removal control on the indoor unit are achieved, output of the refrigerating and heating amount of air conditioner operation is guaranteed, and the user experience is improved.

The present invention relates to a refrigeration / warming multiple air conditioner system wherein one outdoor unit is connected with several indoor units and its operation and control method, in particular relates to a multiple air conditioner system wherein the running state of the indoor unit is transmitted to the outdoor unit by compressor signal and its operation and control method. Therefore, the invention provides a multiple air conditioner system wherein one outdoor unit is connected with several indoor units, the air conditioner system is characterized in that, it comprises: an electromotive valve adjusting the refrigerant flow into the indoor units; a signal part receiving the compressor signal from at least one indoor unit and transmitting the running state of the indoor unit to the outdoor unit; a control part controlling the opening degree of the electromotive valve based on the running state of the indoor transmitted together with the compressor signal.

The invention relates to an auxiliary device of an oil separator in an air-conditioning system and a control method for the auxiliary device, which comprises a compressor, an oil separator and a return capillary. A pipe branch is in parallel provided with the return capillary between an oil outlet of the oil separator on exhausting side of the compressor and an air suction pipe of the compressor. A solenoid valve is connected in series on the pipe branch. The solenoid valve and an unloading valve of the air-conditioning system are merged into a whole, and oil unloading or return is carried out through controlling the solenoid valve respectively by the program. The control method for the auxiliary device of the oil separator is composed of selecting the return capillary and controlling opening period and duration of the solenoid valve. The invention has the advantages of effectively solving contradiction between normal oil return of the compressor assured by frequency conversion or variable capacity air-conditioning system and realizing high EER / COP and good cooling or heating, the unloading valve and the solenoid valve being merged into a whole, oil return of the compressor being optimized and cost of the system being not increased.

The invention discloses an air conditioning system in cars and a controlling method. A back row air blower is arranged in a car, the wind blown from a front air conditioning cabinet is led into the back row air blower through a transition air duct and a lead-in air duct, and a motor of the back row air blower drives fan blades to generate air flow and supplies air into the car through an air outlet channel, and a back row priority mode is provided, air supply can be achieved through an air supply mode and air supply volume under the back row priority mode, so that the air supply volume of back row is increased, a great cooling effect and a great heating effect can be felt in the back row, and the air supply volume and the air supply mode are optional, the air supply can be intelligentialized, and air supply requirements under many circumstances can be satisfied.

The invention discloses a constant air volume control method of an air conditioner. The air conditioner comprises an air pressure sensor; the constant air volume control method of the air conditionerincludes steps of detecting current air pressure of an air outlet of the air conditioner through the air pressure sensor, acquiring the target air volume set by a user; calculating the current air volume according to current air pressure, and calculating the air volume differential value between the current air volume and the standard air volume; correspondingly controlling the motor rotate speedof the air conditioner according to the differential value of the air volume, thereby keeping the constant air volume of the air conditioner. The invention further discloses an air conditioner and a computer readable storage medium. According to the constant air volume control method of the air conditioner, the air conditioner and the computer readable storage medium, the constant air volume control of an indoor air conditioner is realized, and the cooling and heating effects of the air conditioner are improved.

The invention provides a double-stage enthalpy increasing rotor compressor, including a shell and a low pressure compression part and a high pressure compression part arranged in the shell. The compressor is characterized in that the low pressure compression part includes a first cylinder and a second cylinder, and the first cylinder and the second cylinder are overlapped. The invention increases displacement of the double-stage compressor without changing the diameter of the cylinder, broadens the displacement range of the double-stage compressor under the existing cylinder diameter, and improves the cooling and heating capacity of the double-stage compressor.

The invention discloses a cold-hot conversion display cabinet. The cabinet comprises a countertop, wherein the countertop is arranged in a box body, and a push-pull air door is arranged on the countertop; a PTC heating wire which is arranged in the heating chamber on the rear side of the first chamber and used for providing circulating heat for the display cabinet; two evaporation fans, wherein the upper parts of the two evaporation fans can transfer heat generated by the PTC heating wires downwards, and the evaporation fan at the lower part can transfer the cooling capacity generated by the evaporator upwards. The cold-hot conversion display cabinet has the following beneficial effects: the countertop is additionally arranged in a chamber of the display cabinet, the upper space of the chamber can be separated to serve as a heating area, the PTC heating wire is installed in the heating chamber to provide circulating heat for heating, different requirements for independent heating, independent refrigerating and simultaneous refrigerating and heating of the display cabinet are met through opening and closing of the air door, and the purpose of mutual conversion of different functionsof the display cabinet is achieved. Air-cooling and air-heating circulation is adopted for cooling and heating, temperature rising is faster, and the cooling and heating efficiency of the display cabinet is greatly improved.

The invention discloses an cast-in-place reinforced concrete hollow heating and cooling floor, comprising floors which is made of reinforced concrete beams, ribs, plates and the cavity components in it, in the centre of cavity components is an insulation board separating the cavity into upper and lower cavity, the upper cavity is installed with heating pipe, both ends of the heating pipe are exposed to the stated cavity components, a number of heating pipe are connected through the first connecting pipe forming heating pipe group, the lower cavity is installed with cooling pipes , both ends of the cooling pipe are exposed to the stated cavity components, a number of cooling pipe are connected through the first connecting pipe forming cooling pipe group. The heating pipe group and the heat media supply system are connected, the heat media flows through the heating pipe to heat environmental space on the floor, the cooling pipe group and the cold media supply system are connected, the cold media flows through the cooling pipe group to supply cool to the environmental space on the floor. The invention is simple in structure, with good heating or cooling effect and low cost, and there may be helpful in expanding the applicable space.

The invention relates to a capability output control method of an air conditioner indoor machine, terminal equipment and a computer readable medium. The method comprises the steps of acquiring a capacity parameter of the indoor machine, wherein the capacity parameter is set according to the capacity of the indoor machine; acquiring a temperature difference correction coefficient, corresponding toa current moment, of the indoor machine, wherein the temperature difference correction coefficient is determined according to an environmental temperature where the indoor machine is located and a working target temperature; calculating a capability demand output value of the indoor machine at the current moment according to the capacity parameter and the temperature difference correction coefficient; and performing capability output control on the indoor machine in real time according to the capability demand output value. Feedforward capability output control is performed on the air conditioner indoor machine, the actual capability demand is estimated in real time during the starting and running process of the indoor machine, so that the capability output control of the air conditioner system is more accurate and stable.

The invention discloses an evaporator refrigerant flow rate distribution control method. An evaporator comprises a plurality of refrigerant flow paths. The refrigerant flow rate distribution control method comprises the steps that refrigerant outlet temperatures of the multiple refrigerant flow paths under current working conditions are detected correspondingly; the outlet superheat degrees of all the refrigerant flow paths are calculated according to the refrigerant outlet temperatures and refrigerant saturation temperatures of the refrigerant flow paths; and the refrigerant flow rates of the multiple refrigerant flow paths are adjusted according to the outlet superheat degrees of the refrigerant flow paths correspondingly. According to the evaporator refrigerant flow rate distribution control method, refrigerant distribution is more reasonable, and the use ratio of latent heat of evaporation of a refrigerant under the current working conditions can be increased. The invention further discloses an evaporator refrigerant flow rate distribution control device and an air conditioner system.

The invention discloses a diatom ooze wall plaster, which is prepared from the following raw materials in parts by weight: 40-45 parts of kieselguhr through a 360-mesh screen, 8-10 parts of ash-calcium powder through a 400-mesh screen, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of redispersible latex powder, 10-15 parts of a water-based styrene acrylic emulsion and 30-40 parts of water. According to the diatom ooze wall plaster, the bonding strength, the extrusion and impact properties and hot and cold scalability can be comprehensively improved.

Foam concrete is produced by mixing the following raw materials in parts by weight: 200-300 parts of cement, 250-850 parts of fine sand, 20-40 parts of foaming agent and 10-20 parts of compensating agent. The foam concrete has the advantages that: the foam concrete is light in weight and attractive in appearance; closed holes exist in the foam concrete, so that the volume weight of the foam concrete is 500-1200 kg / m3; the foam concrete is cast in site and integrally formed and is light in weight and high in hardness; the foam concrete is closely connected with a base course, so that the bearing capability of a heat insulating layer is greatly improved; and the original raised heat insulating layer is changed into an attractive, flat and practical garden, or an entertainment place or the like, so that the using space of a building is increased.

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.

A three-dimensional heating and cooling house relates to a house, in particular to a house with heating and cooling function. The roof and / or the wall and / or the floor are provided with a heating and cooling cavity and the heating and cooling cavity is provided with heating and cooling tubes. The two ends of the heating and cooling tubes are extended out from the cavity so as to form an inlet and an outlet of heating source and cooling source, the inlet and the outlet are covered with bushings, and a connecting pipe is arranged between the bushings. Because the roof and / or the wall and / or the floor are provided with a heating and cooling cavity, the hot fluid and the cold fluid flowing through the heating and cooling tubes utilizes the heat dissipation of the roof, the wall and the floor to emit the hot air or the cold air on one hand, and on the other hand a heat dissipation hole and a cold dissipation hole or a grate are utilized to emit the hot air or the cold air in the room, so the effect of heating and cooling is very good. The heating and cooling cavity has the advantages of low thickness, simple structure, low price, no influence on the normal construction of the house by building the cavity, good load bearing, low construction cost and good heating and cooling effect. The invention is used in the industrial and civil buildings with various heating and cooling requirements.

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner. According to the control method, the problems that an existing control methodof an air conditioner is poor in universality and poor in user experience. Therefore, the control method comprises the following steps that the rotating speed of an inner fan is acquired; according to the first fitting formula, the valve closing speed of an expansion valve is calculated; according to the second fitting formula, the frequency rising speed of a compressor in the frequency rising stage is calculated; the expansion valve is controlled to be closed according to the valve closing speed to reach the target opening degree; and when the expansion valve is controlled to closed according to the valve closing speed to reach the target opening degree, or before or after the expansion valve is controlled to closed according to the valve closing speed to reach the target opening degree,the compressor is controlled to perform frequency rising according to the frequency rising speed. Through the control mode, the control method of the air conditioner can improve the universality of the air conditioner, and the use experience of the user is improved.

The invention discloses a composite condensation / evaporation four-function hot water heat pump air-conditioning installation. Heat recovery device (1) is connected in series between outlet of compressor (2) and four-way valve (3); one end of bypass control pipe (9) is directly connected to the outlet of the compressor (2), and another end is connected to inlet of pneumatic control pipe of the four-way valve (3) or high pressure side inlet thereof; one end of condenser (11) is connected to the four-way valve (3); one end of condenser (11) is connected to the outlet of the four-way valve (3) via first control solenoid valve (17), and another end of the condenser is connected to the four-way valve (3) via second control solenoid valve (19); air-cooling evaporator (13) and water-cooling evaporator (21) are parallel connected and are respectively connected with third solenoid valve (18) and fourth solenoid valve (20). The invention can realize good cooling and heating effects as well as recovery of condensation heat, and has advantages of stable performance, easy production, and low cost, easy operation.

The invention provides a dust removing control method for a heat exchanger of an outdoor unit of an air-cooled air conditioner. After a user stops using the air conditioner, a motor and centrifugal fan blades of the outdoor unit of the air-cooled air conditioner run in a reversed rotating mode under the control of a main control board, the motor and the centrifugal fan blades first run for T1 at the highest reversed rotating running speed V1, are switched to the next gear to fun for T2 at higher reversed rotating running speed V2, and are switched to the lower-speed gears sequentially according to the same control method till the motor and the fan blades run for Ti at the lowest reversed rotating running speed Vi. When running time reaches the total set running time T, the motor and the centrifugal fan blades of the outdoor unit stop running. By means of the method, dust on the heat exchanger of the outdoor unit of the air-cooled air conditioner can be well removed, heat exchange performance of the heat exchanger is improved, refrigeration and heating effects of the air conditioner are improved, the service life of parts of the air conditioner are not affected, and the method can provide comfortable living conditions for users.

The embodiment of the invention provides a water chiller-heater unit and a control method of the water chiller-heater unit and relates to the field of air conditioners. The water chiller-heater unit solves the problem that in the prior art, when a water chiller-heater unit conducts refrigeration, because a balance tank cannot store a refrigerant and the outdoor environment temperature is too high or the indoor load is too low, the water chiller-heater unit gives a high pressure alarm. According to the water chiller-heater unit, a first electromagnetic valve, a second electromagnetic valve, a balance tank connected with an electronic expansion valve in parallel and a controller are additionally arranged in a traditional unit; and the first electromagnetic valve controls the flow direction of a refrigerant in a communicating pipe between the balance tank and a shell and tube heat exchanger, the second electromagnetic valve controls the flow direction of the refrigerant in the communicating pipe between the balance tank and a finned heat exchanger, and the controller controls the first electromagnetic valve to be opened and the second electromagnetic valve to be closed or controls the first electromagnetic valve to be closed and the second electromagnetic valve to be opened according to the operation mode of the water chiller-heater unit and the exhaust pressure of a compressor in a compression assembly. The water chiller-heater unit and the control method are used for production and control of water chiller-heater units.