20results about How to "Lower condensation temperature" patented technology

The invention discloses a double-water-tank hot water system and a control method thereof.The double-water-tank hot water system comprises a heat preservation water tank, a heating water tank and a heat pump unit, the water outlet side of the heat preservation water tank is connected to a user side through a second pump unit, and a pressure difference water supplementing pipe with the controllable on-off state is connected between the heating water tank and the heat preservation water tank; the heating water tank is further connected with an external water supplementing pipe. The water inlet side of the heat pump unit is connected to the water outlet side of the heating water tank through the first pump set, and the water outlet side of the heat pump unit is connected with the water inlet side of the heating water tank and / or the water inlet side of the heat preservation water tank in a switchable mode. The heat pump unit is designed on the water outlet side of the heating water tank, the heating water tank and the heat preservation water tank are heated or supplemented with water by switching the connecting state of the water outlet side of the heat pump unit, the condensation temperature of the heat pump unit is reduced while the system structure is simplified, and the operation energy efficiency of the hot water system is effectively improved.

The invention relates to a machine room refrigerating system and a refrigerating method. A water collecting tank is communicated with a water inlet of a water-fluorine heat exchanger through a circulating water pump, and a water outlet of the water-fluorine heat exchanger is communicated with a water inlet of a rectangular sprayer through a spraying water pump; refrigerant between the indoor equipment and the outdoor equipment circulates, an inlet of the water-fluorine heat exchanger is communicated with an exhaust port of the compressor, an outlet of the water-fluorine heat exchanger is communicated with an inlet of the dry cooler, and an outlet of the dry cooler is communicated with an inlet of the evaporator through a fluorine pump and an electronic expansion valve. According to the technical scheme, besides the dry cooler, the water-fluorine heat exchanger and the four air-water heat exchangers are further installed in the outdoor machine case, the water-fluorine heat exchanger can firstly reduce the temperature of a refrigerant, then the temperature of the refrigerant is further reduced through the dry cooler, and meanwhile the air-water heat exchangers are further reduced through the air-water heat exchangers. The spraying assembly can cool the heat transferred to water by the water-fluorine heat exchanger through the four air-water heat exchangers. Therefore, the refrigerant evaporation temperature of the machine room can be further reduced, and the cooling efficiency is improved.

The invention relates to a periodic adsorption-desorption type inner cooling and rotating wheel composite deep dehumidification system. The system comprises a dehumidification system, a regeneration system, an air conditioning system, a compressor, a four-way valve, an adsorption / desorption type heat exchanger, a throttling valve, a dehumidification rotating wheel, an air feeder, an exhaust fan and an air valve, wherein the heat exchange surface of the adsorption / desorption type heat exchanger is covered with a moisture absorption material. Outdoor air is sequentially subjected to the processes of cooling and dehumidification of the adsorption type evaporator, isenthalpy dehumidification of the dehumidification rotating wheel and secondary cooling and dehumidification of the adsorption type evaporator, and the treatment process of large-humidity-difference and deep dehumidification of the air is completed. Meanwhile, return air is sequentially subjected to the treatment processes of temperature rise and moisture absorption of the desorption type condenser, moisture absorption of the dehumidification rotating wheel and moisture absorption of the desorption type condenser, and the regeneration process of a system adsorbent is completed. According to the system, through switching of a four-way valve and an air valve of an air conditioning system, periodic switching between the adsorption type evaporator and the desorption type condenser, between the dehumidification area and the regeneration area of the dehumidification rotating wheel and between an air supply pipeline and an air return pipeline is achieved. The energy is reasonably utilized, and the regeneration temperature in the regeneration process can be effectively reduced.

The present invention relates to the technical field of refrigeration cycle, and specifically to a refrigeration system and circulation method for realizing low-temperature refrigeration, wherein the refrigeration system comprises a high-temperature cycle system and a low-temperature cycle system, wherein the high-temperature cycle system comprises a high-temperature low-pressure compressor, a high-temperature high-pressure compressor, a high-temperature condenser, a high-temperature intermediate cooler, a high-temperature low-pressure economizer and a condensing evaporator connected in series in sequence, wherein the high-temperature intermediate cooler is connected to the pipeline between the high-temperature low-pressure compressor and the high-temperature high-pressure compressor through a pipeline, and the high-temperature low-pressure economizer is connected to the high-temperature low-pressure compressor through a pipeline; and the low-temperature cycle system comprises an evaporator, a regenerator, a low-temperature low-pressure compressor, a low-temperature high-pressure compressor, a condensing evaporator and a liquid storage device connected in series, wherein the outlet of the liquid storage device is connected to the regenerator, and the regenerator is connected to the evaporator through a pipeline, so that the refrigerant circulates and refrigerates in a subcritical state, thereby improving the refrigeration efficiency.

The utility model discloses a test device for a high and low temperature test machine, which comprises a compressor, an oil-gas separator arranged on one side of the compressor, a gas-liquid separator arranged on the other side of the compressor, a condenser arranged on one side of the compressor, a liquid storage tank fixedly sleeved on one end of the condenser, a drying filter fixedly connected with the end part of the liquid storage tank, and a gas-liquid separator arranged on the other side of the compressor, a first plate heat exchanger is arranged at the end of the drying filter, and a thermostatic expansion valve is arranged on the side of the first plate heat exchanger. Through mutual cooperation of the compressor, the gas-liquid separator, the condenser, the liquid storage tank, the drying filter, the first plate heat exchanger and the thermostatic expansion valve, the temperature of-40 DEG C passing through the evaporator is-35-40 DEG C, the temperature of-40 DEG C passing through the condenser is 20-30 DEG C, and the condensation temperature is reduced through heat exchange of the plate heat exchanger; and therefore, the refrigerating capacity of the compressor can be increased, the air return temperature of the compressor can be increased, and the liquid impact phenomenon of the compressor can be prevented.

The present application provides a battery integration system based on geothermal energy, including: a heat storage layer; a heat extraction device, which is placed in the heat storage layer, and the heat extraction device is provided with a working fluid inlet and a heat source outlet, and the working fluid inlet is suitable for passing the working fluid to exchange heat with the heat extraction device and generate a constant temperature difference; an in-situ power generation subsystem, which is arranged on the heat extraction device to generate electricity using the constant temperature difference; at least one level of ground power generation subsystem, which is provided with a heat energy inlet and a heat energy outlet, and the heat energy inlet is connected to the heat extraction device to obtain the heat source of the heat extraction device and generate electricity, and the ground power generation subsystem is placed in a cold source environment, and the heat energy outlet of the ground power generation subsystem is connected to the working fluid inlet so that the working fluid with a reduced temperature after power generation returns to the heat extraction device. By setting the in-situ power generation subsystem in the constant temperature gradient layer of the heat storage layer, and using the phase change of the working fluid to reduce the temperature to form a constant temperature difference, an enhanced geothermal battery can be obtained, which improves the utilization efficiency and power generation efficiency of geothermal energy.

The present invention belongs to the technical field of waste heat recovery, and discloses a plant steam waste heat recovery and utilization system, including: a steam turbine; a generator and a compressor, which are coaxially connected to the steam turbine; the compressor is provided with a cooling cavity, and the steam inlet of the compressor is connected to the outlet of the cooling cavity; a steam pipeline, which is used to supply steam with waste heat and is connected to the inlet of the cooling cavity of the compressor; a pressure matcher; a low-pressure steam inlet valve, which is arranged between the cooling cavity of the compressor and the side steam inlet of the pressure matcher; a high-pressure steam inlet valve, which is arranged between the steam outlet of the compressor and the axial steam inlet of the pressure matcher; a bypass regulating valve, whose inlet is connected between the high-pressure steam inlet valve and the steam outlet of the compressor, and whose outlet is connected between the outlet of the pressure matcher and the steam inlet of the steam turbine. The present invention solves the problem that the existing steam waste heat recovery system can only convert the waste heat of steam into the heat of water for utilization, and cannot be converted into other energy forms, and has limitations.

The utility model discloses a cooling device and energy -conserving air conditioner, cooling device includes fan, condenser and energy -conserving module, and the condenser forms the cooling coil for the refrigerant flow, and the fan's air intake mouth is toward cooling coil, energy -conserving module includes water tank and water outlet pipe, and water outlet pipe and water tank intercommunication, and water outlet pipe is connected in condenser, and water outlet pipe is used for cooling cooling coil. Compared with prior art, the present application combines air cooling and water cooling two kinds of heat dissipation mode, and in water cooling heat dissipation system, liquid medium (water) can directly and cooling coil heat exchange, compared with air cooling heat dissipation, the heat transfer coefficient is higher when liquid and solid heat exchange, and the heat exchange effect is better, when the ambient temperature is high, two kinds of cooling mode work simultaneously, to reduce condensing temperature, reduce the equipment power consumption, realize energy -conserving effect. And when water cooling system breaks down, the device can still rely on air cooling system to continue working, greatly improve the practicality of the device.

The invention discloses an air conditioner additional water atomization evaporative cooling device which comprises a water tank, an atomizer, a liquid level sensor, a water inlet electromagnetic valve, an atomization conveying pipeline, a water mist spray head, a control module and a power module. The liquid level sensor is arranged in the water tank to monitor the height of the water level, the water inlet electromagnetic valve is arranged in a water inlet channel of the water tank and used for controlling a water inlet switch, and a mist outlet port of the atomizer is connected to the water mist spray head beside a condenser of an air conditioner outdoor unit through the atomization conveying pipeline in a conveying mode. The control module is connected with the atomizer, the liquid level sensor and the water inlet electromagnetic valve, and the power module is used for supplying power to the whole device.

The embodiment of the utility model provides an evaporation cooling cold and heat combined supply four-pipe unit which comprises a refrigerant circulating system, a four-way valve, a compressor, an air cooling fin heat exchanger, a heat recoverer and an evaporator, the four-way valve is provided with a first port, a second port, a third port and a fourth port, the first port and the third port are connected with the compressor, and the compressor is connected with the evaporator. The second port is connected with the air-cooled fin heat exchanger, the fourth port is connected with the heat recoverer, the heat recoverer and the air-cooled fin heat exchanger are respectively connected with the evaporator, and the evaporator is connected with the compressor; one end of the evaporative condenser is connected with the second port and the fourth port, and the other end of the evaporative condenser is connected with the evaporator. Compared with air cooling, more energy is saved, the amount of refrigerants entering the evaporative condenser is adjusted, the heat recovery amount is controlled, and the problem that operation is unstable due to frequent switching of the four-way valve is solved.

The invention relates to a waste heat warming large vacuum freeze drying system which comprises a waste heat warming unit, a refrigeration unit and a vacuum unit which are connected with one another. The waste heat warming unit comprises a carbon dioxide compressor, a first plate heat exchanger, a heat storage tank, an electric auxiliary heater and a freeze-drying bin; the refrigeration unit comprises a two-stage screw compressor, a cold storage tank, an evaporative cooling tower, a second plate heat exchanger, a freezer and a third plate heat exchanger; the vacuum unit comprises a cold trap, a pre-pumping pump set and a maintaining pump set. The invention further relates to a waste heat warming large-scale vacuum freeze drying method. The method comprises the following steps: S1, a pre-cooling process; s2, a drying process; and S3, a defrosting process. High-temperature heating of the partition plate in the one-time drying process is achieved through waste heat warming, the product quality and the drying efficiency are guaranteed, and energy consumption of the freeze dryer can be greatly reduced.

The invention discloses a household intelligent healthy hydrolat humidifying device. The household intelligent healthy hydrolat humidifying device comprises a shell, a hydrolat extracting assembly and a humidifying and atomizing assembly. The hydrolat extraction assembly comprises a heating barrel, a steaming tray, a hydrolat cup, a heating element and a refrigerating element, the heating barrel is heated through the heating element located at the bottom of a heating bin, and aromatic plant essential oil is carried out through water vapor; water vapor carrying aromatic plant essential oil and coming from the interior of the heating barrel is collected through the collecting opening, the water vapor in the condensation pipe is condensed into a liquid state through temperature difference, pure dew is separated out and conveyed into the hydrolat cup, and extraction of the hydrolat is completed; the extracted hydrolat is absorbed through a water absorption cotton swab in the humidifying and atomizing assembly, is converted into mist through an atomizing piece located at the upper end of an atomizing support, and is discharged through a mist outlet in the surface of a cover. According to the device, hydrolats with different smells can be prepared for humidification according to self requirements, the device is easy to install, and the effects of miniaturization, energy conservation and environmental protection can be achieved.

The present invention relates to a multi-connected cold storage air cooler and its system, including a compression condensing unit and an air cooler module, the compression condensing unit includes a condenser, a gas-liquid separator, a compressor and an oil separator, the outlet of the condenser is connected to a plurality of groups of air cooler modules through a high-pressure liquid pipe, the air cooler module includes an expansion valve, a solenoid valve, an evaporator, and a four-way valve, the inlet of each evaporator is connected to the air cooler inlet branch, the expansion valve is installed in the air cooler inlet branch, the air cooler inlet branch is connected to the high-pressure liquid pipe, a fan is installed on one side of the evaporator, and the outlet of the evaporator is connected to the four-way valve through the air cooler outlet branch. This patent realizes the switching of three modes: normal refrigeration mode, defrost drainage mode and defrost mode, which can avoid defrosting due to liquefaction of gaseous refrigerant in the high-pressure gas pipe and accumulation of liquid in the valve, prevent the influence of "water hammer" when switching modes, and can also realize uninterrupted refrigeration to ensure the quality and safety of refrigeration and freezing.

The utility model discloses a heat recovery device and an air conditioner with the heat recovery device, and aims to solve the technical problem that heat redundancy generated by a fin type heat exchanger is wasted when a triple co-generation heat pump refrigerates in summer in the prior art, and the heat redundancy generated by the fin type heat exchanger is recovered for heating domestic water. Therefore, the operation energy consumption of the whole heat pump is reduced, and the purposes of energy conservation and environmental protection are achieved. The utility model further provides an air conditioner with the heat recovery device, the air conditioner comprises a heat pump system and the heat recovery device, the heat recovery device is used for recycling heat redundancy generated in the refrigeration process of the fin type heat exchanger, domestic water is heated to a certain temperature, and the heat recovery device is used for recycling the heat redundancy generated in the refrigeration process of the fin type heat exchanger. Therefore, the condensation temperature required by the heat pump system for making hot water is reduced, so that the operation energy consumption of the compressor is reduced, and the effect of reducing the operation energy consumption of the whole machine is finally achieved.

The application discloses a condensing compression integrated unit realizing gravity liquid supply, and relates to the technical field of industrial refrigeration. The unit comprises a support structure, an evaporative condenser, a compressor, an economizer, a gravity liquid supply barrel and an evaporator. The support structure is designed in layers, the evaporative condenser is arranged in an upper layer cavity, and the compressor is arranged in a lower layer cavity. The economizer is connected with the evaporative condenser and the gravity liquid supply barrel, and the gravity liquid supply barrel is connected with the evaporator. The condensing compression integrated unit realizing gravity liquid supply disclosed by the application can effectively improve the energy efficiency of a refrigeration system by supercooling treatment of refrigerant through the economizer and a full-liquid supply mechanism of the gravity liquid supply barrel, thereby being applicable to the demand of medium and large-sized refrigeration projects. In addition, the evaporative condenser and the compressor are arranged in an up-down mode, and the economizer, the gravity liquid supply barrel and the like are arranged on the base, so that the overall structure of the condensing compression integrated unit is more compact, and transportation and installation are facilitated.

The application discloses a rotary dehumidifier. It comprises a fresh air channel, a return air channel and an outdoor air channel, a dehumidifying rotary wheel is arranged between the fresh air channel and the return air channel, a first heat exchanger and a second heat exchanger are arranged in the fresh air channel on the front and back sides of the dehumidifying rotary wheel respectively, a third heat exchanger is arranged in the return air channel on the front side of the dehumidifying rotary wheel, and a fourth heat exchanger is arranged in the outdoor air channel; one end of the first heat exchanger and the second heat exchanger is connected with one end of a four-way reversing valve, the other end of the first heat exchanger and the second heat exchanger is connected with one end of a first electronic expansion valve and a second electronic expansion valve respectively, the other end of the first electronic expansion valve and the second electronic expansion valve is connected with one end of a third electronic expansion valve and a fourth electronic expansion valve respectively, and the other end of the third electronic expansion valve and the fourth electronic expansion valve is connected with one end of the third heat exchanger and the fourth heat exchanger respectively. The application can meet the temperature and humidity requirements in the whole year while saving energy and reducing consumption.

This invention relates to the field of air conditioning and refrigeration room control technology, and more particularly to a high-efficiency intelligent control method for air conditioning and refrigeration rooms based on a DDC module. This invention analyzes the cooling and heat dissipation trends of the monitored air conditioning and refrigeration room using environmental parameters to determine if there is a risk of insufficient heat dissipation margin. It performs time-series coupling analysis on each monitoring optical path to mark characteristic monitoring optical paths. Based on the transmitted light intensity parameters of each characteristic monitoring optical path, it constructs several optical path fluctuation curves to determine the deficiency tendency category of the monitored air conditioning and refrigeration room. Based on the deficiency tendency category, it determines the cooling optimization adjustment method for the monitored air conditioning and refrigeration room. This invention enables rapid identification of whether there is a risk of insufficient heat dissipation in the monitored air conditioning and refrigeration room, and adaptively adjusts the cooling optimization method according to the actual situation of the monitored air conditioning and refrigeration room, improving the reliability of intelligent control of the air conditioning and refrigeration room.

The invention discloses a method for preparing fruit cell water by freeze drying technology, comprising the following steps: step 1, precooling the freeze dryer, and then putting the raw material into the freeze dryer for vacuum pulse treatment and annealing treatment, the vacuum pulse treatment method is: the first section is 0.8-1KPa, 10s, the second section is 101KPa, 10s, the third section is 0.8-1KPa, 10s, the fourth section is 101KPa, 10s, the fifth section is 200-400Pa, 5min, and the annealing method is: 1-3KPa, the heating plate is heated to 4°C and maintained for 30min. The invention enhances the permeability of plant tissues through vacuum pulses, and then freezes the water in plant cells (mixed with volatile components in plants) into ice through vacuum freezing technology, and combines the annealing process to enlarge the ice crystals in the material, increase the sublimation pore channels, and effectively increase the aroma component content in the cell water.

The utility model discloses an air cooling and evaporative cooling double-cooling efficient heat pump air conditioner, which relates to the technical field of air conditioners and comprises a compressor, the output end of the compressor is connected with a four-way valve through a pipeline, and three output ports of the four-way valve are respectively connected with an air-cooled condenser, an evaporator and a gas-liquid separator through independent pipelines. And the output end of the air-cooled condenser is connected with the evaporative condenser through a pipeline. According to the utility model, a refrigerant is cooled by the evaporative condenser after being fully cooled by the air-cooled condenser, so that the condensing temperature is greatly reduced, and the energy efficiency ratio of the compressor is greatly improved; and after the refrigerant is fully cooled by the air-cooled air condenser, the condensation temperature of the refrigerant is relatively low, so that the scale formation degree of the circulating cooling water on the evaporation condensation pipe is greatly reduced after the refrigerant is subjected to evaporative condensation, in addition, the evaporative condensation is used as secondary auxiliary condensation, the heat exchange amount is not very large, and the cost of an evaporative condenser is greatly reduced.