69 results about "HEAT/MOISTURE EXCHANGE" patented technology

A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy. It has been recognized that users generally prefer to breathe freely rather than to fight the pressurized air when possible. A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy when required, but allows the user to breathe freely with the mask on when positive airway pressure is not required. The system has a valve that moves between two positions to open and close the unassisted breathing vent and the outlet from the flow generator.

The present invention belongs to an improvement of an evaporative cooling cool supply device with dry air energy as power source, and in particular relates to an evaporative refrigeration water chilling unit. A spraying water distributor and a blower are arranged above a direct evaporative cooling heat exchanger; a water storage pool with a circulating water pump is arranged inside a casing on the lower part of the direct evaporative cooling heat exchanger; an air inlet of the casing is provided with a surface air cooler; a water inlet of the circulating water pump is connected with a water outlet at the bottom of the water storage pool through pipelines; a water outlet of the circulating water pump is connected with an indoor sensible heat cool supply terminal through pipelines; an outlet of the indoor sensible heat cool supply terminal is connected with the surface air cooler through pipelines; a water outlet of the surface air cooler is connected with a spraying water distributor through pipelines. The present invention can realize the effective utilization of the cold energy of cold water, reduces the irreversible loss of heat-moisture exchange, improves heat-moisture exchange efficiency, ensures that outlet water temperature can approach to the dew point temperature of inlet air, and improves the efficiency of utilizing dry air energy.

A first and second housing is joined together by a middle housing rotatable with respect to the first and second housing. The first and second housings have conduits passing through exterior walls and an annular ring on an inside wall together with an annular interior edge rotatably joined to first and second side rim channels of the middle housing. A heat-moisture exchanger material having an annular opening through which a tube passes is mounted within the middle housing so that in a first rotatable position air and moisture passes through the first and second housing conduits directly and in a second rotatable position must pass through the heat-moisture exchange material.

A heat and moisture exchange device for being selectively operated between HME mode and bypass mode comprises a rotatable valve and valve selector configured to be rotated without transferring rotational movement to tubing attached to the device.

A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy. It has been recognized that users generally prefer to breathe freely rather than to fight the pressurized air when possible. A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy when required, but allows the user to breathe freely with the mask on when positive airway pressure is not required. The system has a valve that moves between two positions to open and close the unassisted breathing vent and the outlet from the flow generator.

A heat and moisture exchange device for being selectively operated between HME mode and bypass mode comprises a rotatable valve and valve selector configured to be rotated without transferring rotational movement to tubing attached to the device.

There is provided a moisture indicator for a heat and moisture exchange (HME) device that uses a pre-colorant and an activator applied to an inner surface of the HME device. The colorant undergoes a color change of Delta E (ΔE) of equal to or greater than 3 units upon exposure to moisture but not upon exposure to high humidity. The colorant is visually obvious to the unaided human eye under normal light conditions through the body of the device. The HME device with the visual indicator for moisture can indicate to the care-giver that it is time to change the HME device.

The invention relates to a novel air total heat exchanger which comprises a fresh air runner, a fresh air fan, an exhaust air runner, an exhaust fan and a total heat exchange core body. Fresh air and exhaust air are subjected to total heat exchange through a heat-moisture exchange membrane in the total heat exchange core body; inlets and outlets of the fresh air and the exhaust air of the total heat exchanger are laterally arranged relative to the total heat exchange core body; the fresh air inlet and the exhaust air outlet are arranged at the same end faces of different sides on the same horizontal plane; the fresh air outlet and the exhaust air inlet are arranged at the same end faces of the different sides on the same horizontal plane; the fresh air inlet and the exhaust air outlet are respectively arranged at the upper and lower layers (or lower and upper layers) at the same side of the total heat exchange core body; the fresh air outlet and the exhaust air inlet are respectively arranged at the lower and upper layers (or upper and lower layers) at the other same side of the total heat exchange core body, and diversion partition plates are arranged inside the fresh air runner and the exhaust air runner. Therefore, the air can be uniformly arranged on the total heat exchange core body; the total heat exchange efficiency is improved, and the air resistance is reduced.

A speaking tube for a patient's airway management having a body with a chamber formed therein connected to a tracheotomy tube. A plurality of ramps are disposed within the chamber retaining a ball therein. The body is rotatable through 180° to adjust the positioning of the ball when the patient inhales and exhales, thereby facilitating speech by the patient. An adapter for heat moisture exchange is attachable to the body.

An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

The present disclosure provides a system for conditioning a gaseous supply stream. The system includes a desiccant-free heat and moisture exchange wheel that efficiently transfers both heat and moisture between a warmer, substantially saturated gaseous exhaust stream and a gaseous supply stream such that the supply stream becomes heated and substantially saturated. The presently disclosed conditioning system, therefore, beneficially allows the use of a desiccant-free heat and moisture exchange wheel in applications requiring the transfer of both heat and relatively large amounts of moisture between counter-flowing air streams. The desiccant-free heat and moisture exchange wheel is designed in accordance with the present disclosure to transfer moisture through a process of condensation and re-evaporation. A desiccant-free wheel provides the benefits of being generally easier and less expensive to manufacture than an enthalpy wheel, which is conventionally used in such heat and moisture applications, since an enthalpy wheel includes a coating of desiccant material over its sensible heat exchange media for trapping, transferring, and releasing water vapor between counter-flowing air streams.

A breathing protector to be fitted in a tracheostoma is provided. The breathing protector comprises a filter housing (100, 200, 300) with a central axis, a distal end, a proximal end, a first opening (101, 201, 301), and a second opening (102, 202, 302), wherein said second opening (102, 202, 302) is located in a proximal end of said filter housing (100, 200, 300), and said first opening (101, 201, 301) is located distally of said second opening (102, 202, 302), such that said first opening (101, 201, 301) is located upstream said second opening (102, 202, 302) during inhalation. The breathing protector further comprises a heat-moisture exchanging filter (103, 203, 303) received in said filter housing (100, 200, 300), wherein said heat-moisture exchanging filter (103, 203, 303) is resilient; a valve seat (105, 205, 305) around said first opening (101, 201, 301); a rail, located circumferentially of said valve seat (105, 205, 305), extending axially and distally from said first opening (101, 201, 301), said rail having at least one aperture (108, 208, 308) in the side wall thereof; a valve member (109, 209, 309), arranged in a transversal plane to the central axis, adapted to closingly engage with the valve seat (105, 205, 305) in a closed position, said valve member (109, 209, 309) being reciprocatingly arranged within said rail (106, 206, 306) between the closed position and an open position; and a return spring pressing the valve member (109, 209, 309) axially and distally into the open position, wherein the heat-moisture exchanging filter (103, 203) is the return spring.

The invention relates to a small household-type solution humidifying fresh air handling unit for an external cold source. The small household-type solution humidifying fresh air handling unit mainly comprises an auxiliary cold source, a refrigerating system and a solution module. The auxiliary cold source conducts precooling and pre-dehumidification on fresh air with cooling capacity provided by external high-temperature cold water. An evaporator of the refrigerating system conducts further cooling and dehumidification on the fresh air with cold capacity provided by the refrigerating system of the unit. The heat and humidity transfer mode of gas-liquid crossflow is adopted in a heat and humidity transfer core of the solution module. The refrigerating system includes one or more compressors, the evaporator, a condenser and one or more expansion valves. An outlet of the evaporator is connected with inlets of the compressors, and outlets of the compressors are connected to an inlet of the condenser. An outlet of the condenser is connected to inlets of the expansion valves, and outlets of the expansion valves are connected to an inlet of the evaporator. Therefore, a heat pump refrigerating system circulation loop can be formed.

The invention discloses a cage textile air conditioning spray chamber. The cage textile air conditioning spray chamber can obviously reduce the content of plant dust such as cotton and hemp in air, and the incidence of byssinosis. The cage textile air conditioning spray chamber comprises a bottom tank (1) and five spray racking pipes (2). Each one of the five spray racking pipes (2) comprises two vertical sections and a horizontal section, wherein the vertical sections and the horizontal section are orderly connected together. Spray nozzles (3) are uniformly arranged on the five spray racking pipes (2). The spray nozzles (3) are threadedly connected with the five spray racking pipes (2). A bottom surface of the bottom tank (1) is an inclined plane of which a left side is lower than a right side. A drain outlet (9) is arranged at a lowest point of the bottom tank (1). A plug screw (10) is arranged on the drain outlet (9). A right side of the bottom tank (1) is provided with a water outlet (4). A left side of the bottom tank (1) is provided with a water inlet (5). The water outlet (4) is connected to a water filter (11). The water filter (11) is connected to a water pump (12). The water pump (12) is connected to a circulating water pipe (13). The circulating water pipe (13) is connected to the two sections of each one of the five spray racking pipes (2). The water inlet (5) is connected to a tap water pipe. The cage textile air conditioning spray chamber can solve well the problems of low heat-moisture exchange efficiency of air and water, and incomplete air washing. The cage textile air conditioning spray chamber enables fabrics to satisfy humiture requirements from a weaving technology, guarantees resultant yarn quality, improves workshop air quality, and has a simple structure and a low cost.

The invention discloses an adaptive controlled mine return air waste heat recovery heating system. The adaptive controlled mine return air waste heat recovery heating system comprises a mine return air spraying heat transfer system, a low-grade heat energy lift system, a load side heating system and an adaptive control system. The apparent heat and latent heat in the mine return air are recoveredby the mine return air spraying heat transfer system, are promoted to higher grade heat through the low-grade heat energy lift system and are provided to the load side heating system for use. The adaptive control system monitors, controls, feeds back and regulates the mine return air spraying heat exchange system, the low-grade heat energy lift system and the load side heating system. The adaptivecontrolled mine return air waste heat recovery heating system improves the accuracy and target of the system operation, has obvious effects of energy saving and water saving and solves the problem oflow adaptability of the external environment state and the time change of thermal load and the heat and humidity exchange efficiency, and the adaptive controlled mine return air waste heat recovery heating system applies parameterized adjustment and a frequency converter and other control methods to realize efficient regulation of a mine return air spraying heat exchanger under variable working conditions.

The embodiment of the invention discloses a temperature and humidity detection device, a dehumidifier and a dehumidification method. According to the temperature and humidity detection device, a temperature and humidity detection module is arranged at an air inlet hole of a shell, a first fan is arranged in the shell, the first fan drives air inside the shell to flow during operating, and thus, the air can enter from the air inlet hole and is exhausted from an air outlet hole; and accordingly, the effect that air surrounding the surface of the temperature and humidity detection module is not retained can be kept, sufficient heat and humidity exchange between the air and the temperature and humidity detection module can be achieved, the detected temperature and humidity values are more accurate, and the user experience is greatly improved.

The invention discloses an evaporative cooling heat exchanger which comprises an inner cylinder, an outer cylinder and a driving motor. The inner cylinder is arranged in the outer cylinder, and a first heat exchange channel is formed between the outer cylinder and the inner cylinder; the driving motor is connected with the inner cylinder through a rotating shaft penetrating through the bottom of the outer cylinder; the side surface of the inner barrel is provided with a plurality of through holes, the top surface of the inner barrel is provided with a water inlet pipe, and the inner barrel isinternally provided with blades crossed with the water flow direction; and the side surface of the outer cylinder is provided with an air inlet, and the top surface of the outer cylinder is provided with an air outlet. The driving motor is used for controlling rotation, the blades are arranged in the inner cylinder, water drops in the inner cylinder are collided to generate water mist, the water mist generated by the collision of the blades can enter the first heat exchange channel through the through holes and collide with the inner wall of the outer cylinder, new water mist is generated in the first heat exchange channel, and heat and moisture exchange occurs in air flowing through the first heat exchange channel. The air, water mist and water drops rotationally flow in the evaporative cooling heat exchanger, so that the gas-liquid contact area and the heat-moisture exchange efficiency are increased, and the cooling efficiency is effectively improved.

The invention provides a leaf storage cabinet. The cabinet comprises a cabinet body, at least one first air supply pipe, connecting pipes and a temperature and humidity detector. A first air outlet isformed in each first air supply pipe, an included angle is formed between the air outlet direction of each first air outlet and the inner wall where the corresponding first air supply pipe is installed, and outgoing air is suitable for forming an air curtain above materials in the cabinet body so as to isolate the external environment and avoid heat and humidity exchange with the external environment. A row of microporous air ports are formed in each first air supply pipe, the microporous air ports blow modulated air-conditioning air towards materials below the air curtain, and the hole diameters of the microporous air ports are increased along with increase of the distance between the microporous air ports and the connecting ends, connected with the first air supply pipes, of the connecting pipes. Through variable-diameter arrangement of the air ports, the air outlet amount of the air ports far away from the connecting ends is guaranteed, and the air amount in the cabinet body is more uniform. The first air supply pipes are directly arranged in the cabinet body, so that the temperature and humidity of materials in the cabinet body are more directly and stably controlled.

The invention discloses a drying device for recycling condensed water and a washing machine of the device, wherein a thermoelectric condensed water recycling device is additionally arranged outside awashing system and a drying system of a washing and drying integrated machine, and the thermoelectric condensed water recycling device comprises a thermoelectric heat exchange system and a lint filter; condensate water subjected to heat and moisture exchange with hot and humid air recycles waste heat in the condensed water through the action of the thermoelectric heat exchange system; lints in thecondensed water can be filtered through the lint filter; and condensate water after heat exchange and filtration is reintroduced into a condensation duct to exchange heat with hot and humid air. Thedevice can realize the cyclic utilization of condensed water, can set an appropriate temperature difference for control according to needs, and locally actively reduces the temperature to recycle thewaste heat in the condensed water, and thus the improvement of the drying efficiency in the air duct is favorable, the energy consumption of the washing and drying integrated machine is reduced, the rationality of the overall energy distribution and utilization of the washing and drying integrated machine is improved, and the comfort experience of users is enhanced.

The invention is suitable for the technical field of machine room energy saving, and provides an intelligent efficient machine room energy-saving algorithm model of a central air-conditioning system, comprising: an energy consumption model of a water chilling unit, the energy consumption model of the water chilling unit being used for calculating energy efficiency ratios of the water chilling unit under different operation conditions; an energy consumption performance model of the chilled water pump, wherein the energy consumption performance model of the chilled water pump is used for calculating the energy consumption of the chilled water pump under different operation conditions; and a heat and humidity exchange model of the cooling tower, wherein the heat and humidity exchange model of the cooling tower is used for calculating operation parameters of the cooling tower under different operation conditions. Algorithm models are established for related equipment such as a water chilling unit, a chilled water pump, a cooling water pump and a cooling tower of each refrigerating machine room, manual starting and stopping are conducted on a remote interface, state parameters are monitored, the frequency is automatically controlled according to a chilled water temperature difference set value obtained through an optimization algorithm, the number of the equipment is automatically increased and decreased, and it can be guaranteed that the whole system is safe, reliable and capable of saving energy.

The invention relates to an air conditioner device adopting combination of finned tubes and a direct evaporation technology. An air inlet shutter is arranged at an inlet of a box body, an air supply shutter is arranged at an outlet, and a mid-effect filter, an air-water finned tube type heat exchanger, water spraying stuffing and a centrifugal fan are successively arranged in the box body; spraying systems are arranged above the water spraying stuffing, and the water spraying stuffing is fixed on a water collecting box; a circulating water tube extends from the bottom of the water collecting box and is connected with water tubes in two operational sections through a three-way component after the circulating water tube penetrates through a circulating pump, the water tube in one operational section is connected with the air-water finned tube type heat exchanger, and after flowing out of the air-water finned tube type heat exchanger, circulating water returns the water collecting box from a water returning opening in a disk tube section; the circulating water is uniformly sprayed on the water spraying stuffing through the spraying systems by the water tube in the other operational section so as to perform heat-moisture exchange with air, and then the circulating water drops into the water collecting box. According to the air conditioner device disclosed by the invention, firstly precooling is performed on outdoor fresh air through the air-water finned tube type heat exchanger, so that the efficiency is improved.

A heat moisture exchange device received on a speaking tube mounted on an end of a tracheotomy tube. The heat moisture exchange device has a housing in which the air moves in a turbulent manner and passes through a heat moisture exchange filter.

The invention discloses a fire hose drying device with direct combustion type solution dehumidification and heat recycling. The fire hose drying device comprises a return air inlet, an air pipe, an absorbing machine, a draught fan, an air inlet, a drying chamber, a lithium bromide dilute solution collecting machine, a solution pipe, a solution pump, a direct combustion type generator, a lithium bromide concentrated solution spraying nozzle, a heat recycling device, an electronic bypass air valve, a thermometer, and an exhaust gas pipe. The drying chamber comprises a fire hose inlet, a fire hose outlet, a personnel entering exiting door, and a working table. The drying chamber is internally provided with an air inlet and a return air inlet. When moisture content of circulating air in the drying chamber increases, and under action of the draught fan, the circulating air enters the absorbing machine, and heat-moisture exchange occurs between the circulating air and the lithium bromide concentrated solution. The circulating air is dried and heated and is secondarily heated by the heat recycling device, and enters the drying chamber through the air inlet to dry the fire hose. The problem that the fire hose cannot be dried for a short time after use is solved, maintenance of fire hoses of fire fighting companies after use is facilitated, and the service life of the fire hoses is prolonged.

The invention discloses an air total heat recovery fresh air system which comprises an outdoor exhaust pipe, an outdoor air inlet pipe, a fresh air side wheel type filtering device, an exhaust side wheel type filtering device, a wheel type air total heat recovery heat exchanger, a rotating shaft, a wheel type shell, a fresh air pipe, an exhaust air pipe, an indoor air feeder, an indoor induced draft fan and a rotating shaft partition plate. According to the wheel type air total heat recovery heat exchanger, the cold, heat and water vapor of indoor exhaust air and outdoor fresh air are collected through rotation and a heat and humidity exchange coating. Due to the fact that the indoor exhaust air and outdoor fresh air alternately and reversely pass through the wheel type air total heat recovery heat exchanger, the heat and humidity exchange coating can collect and release the cold and heat quantity of air and water vapor through the temperature difference of the indoor exhaust air and the outdoor fresh air and the water vapor partial pressure difference, heat and humidity exchange can be carried out, and sensible heat can be recovered. And meanwhile, latent heat can be recovered, so that total heat recovery is realized.

The invention discloses a heat moisture exchanger which comprises a tubular shell, wherein two ends of the tubular shell are respectively provided with a filter element; the tubular shell is provided with an oxygen inlet, a general-purpose connector and a sputum suction connector; the tubular shell is also provided with a humidification connector and is internally provided with a first diversion component used for diverting a humidizer flowing in from the humidification connector to the filter element; the humidizer flows into a sputum suction pipe through the humidification connector, and then is mixed with oxygen so as to enter into the body of a patient. By virtue of implementing the heat moisture exchanger provided by the embodiment of the invention, the humidizer is fully mixed with the oxygen, so that a better humidification and warming effect is achieved.

Filter made entirely with natural and biodegradable materials, for the protection of the respiratory tract of patients in the medical-surgical field and process for making it. The filter has a porosity or 80-98% and pore diameters of 100-350 micrometers and the pores have a shape of channels open at the ends, which are parallel to each other. The filter is obtained by preparing an aqueous solution of chitosan and an aqueous solution of gelatin, mixing them, pouring it into a container, keeping the container closed until obtaining a hydrogel and freeze-drying. A cross-linking step takes place by (a) adding a chemical cross-linker to the mixture of the chitosan and gelatine solutions and cross-linking before freeze-drying, or (b) subjecting the freeze-drying product to a thermal dehydration treatment.

The invention relates to a combined water film evaporative air-conditioning cooling device for a subway station. The current subway air-conditioning ventilation system is high in energy consumption, large in size, and high in engineering investment and operation cost. The device is provided with air inflow distribution control valves, a circulating water pump, water film evaporative cooling module units, an air-water separator and an air outflow collecting cover sequentially in an air inflow direction, wherein the water film evaporative cooling module units, a guide groove, the air-water separator and the air outflow collecting cover are connected into a detachable mobile water collecting tank. The combined water film evaporative air-conditioning cooling device is based on a water film evaporative cold source-free air-conditioning principle of heat and humidity exchange; a modular structure form is adopted, so that the device is convenient to transport, mount, and maintain, simple in system, flexible to control, and high in adaptability, and operates flexibly; the detachable mobile water collecting tank and the air-water separator are convenient to clean periodically, so that bacterial growth is reduced; the quality of treated air is improved; the loss of circulating water is reduced; the water treatment expense and operation cost are lowered; and a water resource is saved.

The present invention belongs to an improvement of an evaporative cooling cool supply device with dry air energy as power source, and in particular relates to an evaporative refrigeration water chilling unit. A spraying water distributor and a blower are arranged above a direct evaporative cooling heat exchanger; a water storage pool with a circulating water pump is arranged inside a casing on the lower part of the direct evaporative cooling heat exchanger; an air inlet of the casing is provided with a surface air cooler; a water inlet of the circulating water pump is connected with a water outlet at the bottom of the water storage pool through pipelines; a water outlet of the circulating water pump is connected with an indoor sensible heat cool supply terminal through pipelines; an outlet of the indoor sensible heat cool supply terminal is connected with the surface air cooler through pipelines; a water outlet of the surface air cooler is connected with a spraying water distributor through pipelines. The present invention can realize the effective utilization of the cold energy of cold water, reduces the irreversible loss of heat-moisture exchange, improves heat-moisture exchangeefficiency, ensures that outlet water temperature can approach to the dew point temperature of inlet air, and improves the efficiency of utilizing dry air energy.

The invention discloses a method for decreasing the temperature of a central air conditioner through clear water. The clear water at the temperature of 20+ / -2 DEG C is conveyed into spraying pipes vertically distributed in a central air conditioner chamber through a chilled water pipeline, the clear water in the spraying pipes is sprayed to air in the central air conditioner chamber through nozzles arranged on the spraying pipes to achieve heat-humidity exchange, and the clear water subjected to heat-humidity exchange falls into a spraying pool below the central air conditioner chamber; the clear water falling into the spraying pool enters a refrigeration station through an overflowing pipe, and then a water pump is used for pumping the clear water entering the refrigeration station into a main water producing pipe network. By means of the method, the energy consumption of the central air conditioner in summer is effectively lowered, resources are fully utilized, the objectives of saving energy and reducing emission are achieved, and the purpose of clean and environment-friendly production is achieved.

The invention discloses an ordinary time and epidemic period combined adjustable working condition variable-channel operation air handling unit and a control mode thereof, and belongs to the field ofenergy utilization technologies and air conditioning. The unit is composed of an air feeder, two evaporators, an air return valve, two fresh air valves and three bypass ventilation valves. During refrigeration operation at ordinary time, one air return valve and one fresh air valve are opened, fresh air and return air are mixed in proportion and then are subjected to heat and humidity exchange through the two evaporators at the same time to achieve the purposes of cooling and dehumidification, and the two evaporators are arranged in parallel relative to airflow by adjusting different on-off states of the three bypass ventilation valves; when an epidemic situation happens, the air return valve is closed, the two fresh air valves are opened at the same time, and the rotating speed of a draught fan is adjusted through a frequency converter, so that the air volume can be reduced to the appropriate air volume; and in order to increase the enthalpy difference of air treatment, all fresh airenters the air handling unit and sequentially passes through the two evaporators, the two evaporators are arranged in series relative to airflow by adjusting the different on-off states of the three bypass ventilation valves, and the air is conveyed into a room after being treated to a required heat and humidity state point.