216results 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 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 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 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 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 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 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.

A solar energy semiconductor air conditioning system relates to air conditioning apparatus for room refrigeration and heating by using solar energy and semiconductor. refrigeration and heating module, comprising semiconductor refrigeration and heating module, solar energy optical-electrical converter which supplies power for semiconductor refrigeration and heating module, energy accumulation device and digital controlled matching unit to which is electrically connected to solar energy optical-electrical converter, energy accumulation and semiconductor refrigeration and heating module. The solar energy optical-electrical converter is comprised of several multi-silicon crystal panel which are connected in series or paralleled; the semiconductor refrigeration and heating module is consisted of one or several model which consists of fixed carrier and several refrigeration and heating modules. The invention with simple and compact structure is easy to extend and has good refrigeration and heating effects, saves energy, and it has effectively solved the problems exist in present technology that the structure is complex and practical use is unsatisfied.

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.