214 results about "Humidistat" patented technology

A heat pump heat pump system, operating with an R-410A refrigerant, comprised of at least one of an air source heat pump system, a water source heat pump system, and a direct expansion heat pump system, preferably for use in a Deep Well Direct Expansion heat pump system, which incorporates a three-mode receiver and an interior air handler, with at least one fan, with such air handler comprised of a combination of two sets of refrigerant to air heat exchange tubing/interior air heat exchange means, with by-pass lines and solenoid valves to facilitate system operation in the desired operational mode, all enabling optimum system performance in one of the desired heating mode, cooling mode, and dehumidification mode of system operation, as controlled by at least one of a thermostat/humidistat.

A method, system, apparatus, and device to provide an effective, automatic means to effect exhaust, supply, or balanced ventilation, or a combination thereof, by automatically activating a ventilation fan for the selected operation time per cycle interval based on prior fan operation due to automatic cycle operation and user demand. In a second embodiment the ventilation fan controller automatically activates said ventilation fan in conjunction with operation of a blower of a central air conditioning system. In a third embodiment, the ventilation fan controller also automatically operates the blower for the selected operation time per blower cycle interval, including operation due to thermostat and/or humidistat demand and operates the ventilation fan in conjunction with operation of the blower and/or for the minimal time selected per interval, including operation due to user demand. Optionally, a position of an outside air intake damper is controlled in conjunction with activation of the blower.

Method and apparatus for monitoring, controlling and adjusting sleeper's environmental conditions of the space above entire bed surface by partially sealing and insulating the space above the entire bed surface; monitoring, controlling and adjusting temperature, quality, oxygen level and moisture level of the air within the partially sealed and insulated space according combinational factors of the sleeper's preferences, the sleeper's physiological conditions, heat transfer rate between sleeper's body and ambient air, the internal conditions and external conditions of the partially sealed and insulated space. In particular, a system uses a three-dimensional structure to partially seal and insulate an adequate amount of space above entire bed surface; uses physiological state sensors, thermometers, thermostats, heating device, cooling device, humidistat (hygrostat), humidifier and dehumidifier, oxygen sensor, oxygen supply device, air filtration device to monitor, control and adjust the temperature, moisture level, oxygen level and quality of the air inside the partially sealed and insulated space.

A steam humidifier for use with a forced air heating system includes a steam nozzle mounted in the plenum of the heating system and connected to a water feed line connected to a continuous pressurized water source. The water feed line is made of a thermal conducting material and is coiled about a heating element wherein the heating element and conductive coil are substantially surrounded by an insulation barrier. The water feed line is controlled by a solenoid operated valve that will be activated only when the heater is on and a humidistat detects that humidity is required by the area being serviced by the forced hot air system.

Devices and methods for moisture removal from conditioned air. A speed control is provided that selectively operates the blower motor of an air conditioning system at a lower speed. The speed control may include a time delay circuit and single pole, double throw relay. The speed control is used to slow the speed of the air cycler during the initial stage of a cooling cycle. This initial stage is typically the first 5–7 minutes of the air conditioning cycle. In a further aspect, a humidistat is operably associated with the system for detection of humidity levels within the air of a home or other structure. The system is programmed to close the motorized outside air damper in the event that humidity levels exceed a predetermined level, thereby limiting further entry of humid outside air into the home.

Irrigation systems, moisture sensors and related methods having a sensor imbedded in the ground to sense moisture and help control watering. The sensor is responsive to capacitance changes from ground moisture variations. The sensor uses spaced insulated electrodes which are mounted within a granular filled chamber within a water-permeable shell. The sensor is mounted as part of a ground unit that also includes a high frequency driver that excites the sensor. The ground unit further has a detector circuit which produces a moisture indicating signal based on the capacitance which varies with ground moisture. Also disclosed are controllers that electrically isolate the ground units so that reliable moisture signals can be obtained and used to control irrigation. The controllers can be configured to provide multiple zone operation using a shared controller having shared or independent moisture adjusters.

The invention discloses a multifunctional indoor air quality improving device which comprises a shell. An air inlet and an air outlet are arranged on the shell, an air duct connected the air inlet and the air outlet is arranged in the shell, a fan is arranged on the air duct, a sterilization cavity, an oxygen generating device, an ozone generator, an anion generator, a humidity adjustor and a detection control system are arranged in the shell. The multifunctional indoor air quality improving device can improve indoor air from multiple sides and has an automatic adjusting function, so that indoor air quality is constantly maintained optimal and a good indoor environment is provided for people.

The invention relates to a multifunctional graphene/high-molecular composite material water permeable membrane, a preparation method, and an application thereof. A high-molecular moisture-conductive polymer and a graphene-based composite material are organically bonded in a manner of forming effective chemical bonds, such as a hydrogen bond, an ionic bond, a covalent bond and the like, through polar functional groups, thereby forming a water permeation channel with reinforced hydrophilic-hydrophobic groups on the basis of the moisture-conductive polymer, and meanwhile, significantly improving the mechanical strength, anti-friction strength and acid- and alkali-resistant property, anti-bacterial and anti-fouling capabilities, heat conductivity and heat resistance and the like characters. The multifunctional composite water permeable membrane has long service life, is free of replacement during operation and has self-cleaning capability, and can be applied in the field of whole-heat exchanger, humidity conditioner, sewage treatment and other fields requiring water permeation or water filtration.

The invention discloses a multifunctional indoor air purification system and a control method thereof. The multifunctional indoor air purification system comprises a controller, a storage and a power supply management module; the multifunctional indoor air purification system is characterized in that an input end of the controller is connected with an air quality sensor and a temperature/humidity sensor, an output end of the controller is connected with a draught fan control unit, an anion generator, a temperature/humidity regulator, an electrostatic dust removing unit, a walking control unit, a spice perfuming unit and a music playing unit through a control bus, and the controller is also connected with a wireless communication module. The multifunctional indoor air purification system and the control method, disclosed by the invention, have the obvious effects that the indoor air quality can be effectively controlled, not only can various indexes such as the oxygen content of indoor air, PM2.5 (Particulate Matter 2.5) value and temperature/humidity be comprehensively regulated, but also brand new experience can be provided for people through background music and air smell, the functions of the multifunctional indoor air purification system are perfect, the intelligent degree is high, and the comfortable sensation of a user is strong.

Provided are an atmospheric corrosion test procedure and an apparatus used for the test. The procedure involves a salt spray step for supplying salt content containing chloride ions on the surfaces of test pieces placed in a thermo-humidistat chamber and a subsequent dry-wet cyclic step including a dry sub-step for drying the surface of the test pieces in the thermo-humidistat chamber at a low relative humidity and a subsequent wet sub-step at a higher relative humidity than that in the dry sub-step, which are cycled. The salt content is supplied by spraying the salt water in the salt spray step. An exhaust step for removing the salt mist sprayed inside thermo-humidistat chamber is further inserted between the salt deposition step and the dry sub-step. The quantity of the salt content deposited on the surfaces of the test pieces is controlled by adjusting the quantity of the sprayed salt water.

The invention relates to a sensor performance testing device, particularly to a gas sensor performance testing device, which includes a temperature control and humidity control mechanism, wherein the temperature control and humidity control mechanism is used for controlling the humiture of a test cabinet and includes a heating pipe layer, a refrigerating pipe layer, a thermal insulation layer and humidistats; a cavity is defined through the heating pipe layer; the test cabinet includes a test area which is the space area inside the cavity; heating pipes are arranged in the heating pipe layer; the heating pipe layer is wrapped by the refrigerating pipe layer; refrigerating pipes are arranged in the refrigerating pipe layer; the refrigerating pipe layer is wrapped by the thermal insulation layer; the heating pipe layer, the refrigerating pipe layer and the thermal insulation layer are provided with mounting holes; and the humidistats are fixed in the mounting holes and positioned in the test area. The invention solves the technical problem that the conventional gas sensor performance testing device can only simulate the high temperature environment.

The invention discloses an intelligent food preservation device, a preservation method and a refrigerator using the intelligent food preservation device. An irradiation generator is used for emitting an irradiation signal for sterilization; an image detector is used for acquiring image and ingredient information of food; a gas sensor array is used for acquiring smell emitted by food; a pressure sensor, the irradiation generator, the image detector, the gas sensor array, a humidity sensor and a humidity regulator are connected with an analysis and control unit respectively for data transmission; a display mechanism is used for displaying data signals transmitted by the analysis and control unit. By acquisition of concentration changes of gas emitted by food in a preservation process, the freshness and security degree of food in the current refrigerator can be accurately judged; weight of different kinds of food in the refrigerator is further detected dynamically, and specific food types are recognized and detected through combination with images, therefore, information related to the food preserved in the refrigerator can be known more comprehensively and effectively.

The invention discloses an intelligent household atmosphere regulation method and an intelligent household atmosphere regulation system. The method comprises the following steps that: a central processing unit (CPU) acquires data information and an operation signal sent by a user through a control terminal, analyzes the data information and the operation signal, separates an odor generator operation signal, a brightness regulator operation signal, a humidity regulator operation signal, a temperature regulator operation signal and an audio signal, and sends a working signal to an odor remover; the odor remover filters the indoor air according to the working signal; the odor generator diffuses plant essential oil molecules indoors according to the operation signal; the brightness regulator regulates the brightness and color according to the operation signal; the humidity regulator regulates the indoor temperature according to the operation signal; the temperature regulator regulates the indoor temperature according to the operation signal; and an audio generator plays music according to the audio signal. The method and system build a household atmosphere required for a user and improve the quality of life.

The invention discloses a three dimensional biology printing device and a three dimensional biology printing method. The three dimensional biology printing device comprises a printing platform, a spray head, a spray head electric controller, two CCD (charge coupled device) optical systems with light sources, a plasma sterilization mechanism, a motion control system, a pneumatic control mechanism, a humidity regulator, a temperature control unit, a liquid storage tank, an open container which can contain a nutrient solution, an installation frame and a housing, wherein the installation frame is arranged in the housing and higher than the middle of the housing, the spray head is arranged on the installation frame, the optical systems are respectively arranged above the spray head and on a portion of the installation frame, on the left side of the spray head, the open container is arranged in the housing, the printing platform is arranged in the open container, a nozzle of the spray head faces downwards, and corresponds to the printing platform, the pneumatic control mechanism is installed on the exterior of the housing, and all the other units except the pneumatic control mechanism are located in the housing. The invention further provides the method using the three dimensional biology printing device to print a model. The three dimensional biology printing device does not need to be placed in a clean work room for use, is low in cost, can control a device environment, and is suitable for various biological materials and cells.

A bistable display comprising a display element with at least a layer of bistable material, and a humidistat, is described, as well as methods of reducing voltage and controlling contrast in a bistable display using a humidistat. The bistable display including a humidistat has better viewability, consistent power requirements, and lowered power requirements, regardless of external environmental conditions.

The invention discloses a method for controlling humidity under an air conditioner sleeping environment. The method comprises the first step of calculating to obtain a first relative humidity value according to the preset environment temperature, the preset air conditioner air speed, the preset clothes thermal resistance corresponding to an operating mode, a preset human energy metabolic rate and a PMV index, and the second step of detecting a second relative humidity value under the air conditioner environment, comparing the first relative humidity value with the second relative humidity value and controlling a humidity adjustor according to the comparative result. The invention further discloses an air conditioner and the humidity adjustor. The air conditioner and the humidity adjustor are used for achieving the method for controlling the humidity under the air conditioner sleeping environment. According to the method for controlling the humidity under the air conditioner sleeping environment, the air conditioner and the humidity adjustor, the humidity can be adjusted according to the change of the preset temperature, and the comfort level of a user is obviously improved.

A forced airflow air conditioning system includes a humidifier which is operable to humidify air bypassed from a supply air plenum to a return air duct or vice versa, the humidifier airflow being controlled by a damper closure member which is operably connected to a bimetal spring actuator or to an electric motor, both responsive to temperature of air flowing through the system. One embodiment includes an electric motor connected to the damper closure member and in circuit with a humidistat for opening the damper when humidification is required.

The invention relates to an electrostatic spinning device capable of adjusting the spinning temperature and humidity. The electrostatic spinning device comprises a charging basket, a piston, a spinning nozzle, a high-voltage power supply unit, a receiving plate, a grounded power cord, a two-layer glass cover which covers the periphery of the spinning nozzle to form a closed spinning area, and an interlayer space positioned between the two-layer glass cover, a temperature and humidity prober and a humidity adjustor, wherein the interlayer space is connected with a cold-hot source device which selectively conveys a cold source or a hot source into the interlayer space according to the temperature and humidity indications of the temperature and humidity prober. According to the electrostatic spinning device, the spinning area is designed into a space closed by the two-layer glass cover, different cold and hot sources can be introduced into the interlayer space to perform cycle heating or cooling reaction, and meanwhile, the temperature and humidity prober and the humidity adjuster can be used for simply and quickly feeding back the spinning temperature and humidity, so that the cold-hot source device can alternately introduce a cold source or a hot source into the interlayer space conveniently.

The present invention provides a droplet ejecting apparatus including an ejector that ejects a liquid, and a humidity regulator that includes a humidity regulating material and regulates humidity around the ejector. The invention also provides a cap for maintaining a droplet ejecting port in an airtight condition, the droplet ejecting port being for ejecting a droplet by an ink jet system, the cap including, at least in an inner wall, a humidity regulating material containing an inorganic porous material.