389 results about "Water capacity" patented technology

When heating up the water in the lower inner part of a hot water tank by a heat pump unit, a control unit stops the heat-up operation while leaving the hot water in an amount corresponding to the residual water capacity in the hot water tank detected by water level thermistors. In the heat-up operation in the hot water tank, the residual hot water capacity in the tank is first detected, then the heat-up operation is stopped when the residual hot water reaches an amount corresponding to the detected residual hot water capacity. At this point, the hot water is stored so that the hot water newly heated up by the heat pump unit is laid above the residual hot water for the preceding day. Consequently, the reduction in the operating efficiency of the heat pump cycle is prevented without supplying the medium-temperature residual hot water to a condenser.

This invention describes a bioerodible fibrin material which is obtained by mixing fibrinogen and thrombin reconstituted or diluted with a particular high tonic strength medium, free of calcium. Such a fibrin-based biomaterial develops a tight structure with thin fibers and small pore size suitable for use as an anti-adhesion barrier. In this invention, thrombin is no longer the variable which governs the tightness and the porosity of the fibrin material obtained, but still controls the clotting time. The mechanical behavior, high-water capacity, and releasable retention properties for therapeutic agents of this fibrin structure causes the fibrin material to be ideally suited for use as a drug delivery device, capable of delivering proteins, hormones, enzymes, antibiotics, antineoplastic agents and even cells for local and systemic treatment of human and non-human patients.

An apparatus for humidifying a flow of pressurised, breathable air includes varying a first pressure of the flow of breathable gas to vary a level of thermal engagement between the conductive portion of the reservoir and the heater plate, varying a height of the variable portion varies a level of thermal engagement between the conductive portion of the reservoir and the heater plate, use of a humidifier reservoir base component with a maximum water capacity substantially equal to the predetermined maximum volume of water of the humidifier reservoir or the use of intersecting inlet and outlet axes.

A greening system us disclosed for enabling plants/vegetation to grow only with natural rainfall, without any particular irrigation facilities, enabling a full-blown garden to be constructed on building rooftops, minimizing the applicable loads on the building, and free from the risk of leakage. Planting container 1 comprises box 2 with stickers 3 to carry perforated partition panel 4. The lower half of the container is constituted as water storage 5, and drain holes 6 are opened on sides of the container. Soil layer 7 placed on partition panel 4 is formed of light woody soil-based on charcoal 9 and humus timber chips for absorbing moisture transported from the water 8 stored in water storage 5 by evaporation or difference in humidity, to have a large water capacity letting less water evaporate into the air. Charcoal 9 absorbs water from the air inside the lower half of the container to water the plants. Water storage 5 assures an amount of water necessary for plants to grow.

The invention provides a variable-frequency air-cooled heat pump unit and a control method and device thereof. The control method comprises the following steps: determining the change rate of outlet water temperature according to the change value of the outlet water temperature of the variable-frequency air-cooled heat pump unit in a preset acquiring period; acquiring the change rate of running frequency of a compressor according to the change rate of the outlet water temperature; and controlling the running frequency of the compressor according to the change rate of the running frequency of the compressor. By measurement of the change rate of the total outlet water temperature, overall water capacity and load of a user can be judged preliminarily, frequency increasing or reducing rate of the compressor is regulated and controlled, and therefore, the circumstances that over-regulation of the water temperature is severe so that the unit stops or the frequency is regulated over slowly, and the effect is poor can be prevented effectively.

The invention relates to a device and method to measure precipitation runoff in farm field water conservancy. The runoff well and seepage well are connected by runoff-seepage communicating pipe. A water counter is set on water-yielding port of communicating pipe. Runoff bucket is at the bottom of well. There is a micro-water pump in well. Water counter connects radio-transmitting set. The method is suitable for measurement of seepage discharge, crop requirement and water quality. Surface runoff observation is divided to runoff Q track, moisture-holding Q soil and seepage water Q seepage, that is: Q fall=Q track + Q soil + Q seepage. The formula of water capacity is: Q soil=Q fall - Q track - Q seepage. According to duty Q fill and moisture variety DeltaQ soil, crop water requirement (water consumption Q crop in a period) is achieved: Q crop= Q fall+ Q fill- Q track- Q seepage+ DeltaQ soil. The invention resolves the problem of large error and high cost by using runoff field to measure.

Disclosed are soil additives capable of hydrophilizing soil particles and/or increase available water capacity in soil. The soil additive are capable of increasing the available water content/capacity (AWC) in soils, the additive in one embodiment comprising a polymer composition having a hydrophilic portion and a hydrophobic portion, wherein the hydrophobic portion of the copolymer binds with the soil particle surface and the hydrophilic portion of the copolymer can bind with water. This results in the prevention, arrest or decelerated loss of water from the targeted area, for example the plant root zone, which allows for improved water usage efficiency by plants, grasses, vegetation, etc.

The invention relates to a hollow fiber anion exchange membrane and a preparation method thereof, and is characterized in that bromide polyphenylether is dissolved in organic solvent to obtain spinning solution the polymer mass concentration of which is 20 to 60 percent; then a dry-jet wet spinning is adopted for molding to obtain a bromide polyphenylether hollow fiber inophragma, wherein, the methyl bromide degree is 60 to 120 percent, and the benzene ring bromide degree is 0 to 20 percent; then the inophragma is pretreated and aminated to obtain the hollow fiber anion exchange membrane, wherein, the anion exchange capacity is 1.5 to 2.5mmol/g-dry membrane, and the water capacity is 50 percent to 90 percent. The preparation method has the advantages of simpleness, convenience, rapidity and economy, and obtains a homogeneous phase hollow fiber anion exchange membrane with different exchange capacity and stable performance through the control on the bromide polyphenylether structure, the spinning conditions, etc.; the hollow fiber anion exchange membrane has the characteristics of uniform structure, high ion exchange capacity, and strong pollution resistibility, and can be series-developed to meet the needs of different application fields.

A humidifier has a first sealable reservoir feeding water to a second reservoir communicating with ambient atmosphere. A blower is adapted to blow a stream of air through the humidifier to ambient atmosphere, such that the stream of air picks up water vapor from any water that may be in the second reservoir. A feeder valve feeds a quickly-evaporable quantity of water from the first reservoir into the second reservoir. The quickly-evaporable quantity of water in the second reservoir is substantially smaller than the water capacity of the first reservoir. A dry-out mechanism shuts off the feeder valve upon a user command and continues to run the blower at least until the quickly-evaporable quantity of water has evaporated to an extent effective in inhibiting the growth of microorganisms in the microorganism-vulnerable reservoir.

The invention is to protect the coolant extrinsic cycle system of the engine bench test. The engine water-yielding is educed the cooling liquid pipe which returns to the engine infall after passing a heat exchanger to form a closed circle. The cool end pipe of the heat exchanger is installed with the valve which is closed. The temperature sensor is set in the engine water-yielding and the signal line is connected to the controlling unit which the controlling line is connected with the valve and the alarming device. The controlling unit is set with two temperature value, one is the highest cooling liquid temperature endured by the engine and the other is the proper cooling liquid temperature of the engine. The invention can shorten the warming time of the engine and improve the quality and reliability of the engine bench test.

The invention discloses a load control method and device of a multi-compressor unit and an air conditioner. The load control method comprises the steps that the water outlet temperature of cooling water of a condenser and air returning temperature of an indoor unit are obtained in real time; if the water outlet temperature is within the starting-up range, and the air returning temperature is larger than the set target temperature, a first compressor is started; according to the difference value of the real-time water outlet temperature, the air returning temperature and the target temperature,the number of loading or deloading compressors can be determined; the water outlet temperature of the cooling water and the air returning temperature of the indoor unit are obtained, in combination with the set refrigeration target temperature, through analysis of the refrigeration need and the allowable load of the cooling water, the number of loading compressors is decided, or the number of thecorrespondingly deloading compressors is decided; under the condition that the cooling water temperature is high, within the cooling water capacity range, a certain number of compressors are allowedto work, the cooling water high temperature alarm can be reduced, the condition that all compressors are shut down and do not carry out refrigeration is avoided, and the user experience is improved.

A tree and plant watering system relating to improved transfer of water to trees and plants (both new and existing) is provided. The system comprises soil penetrators, soil anchors, and area extenders to enhance water capacity and to provide ease of water transfer to root systems. Additionally, the system provides plant growth ladders to assist upward plant growth and root apertures to assist root growth.

The invention provides a temperature-adjustable water dispenser. The temperature-adjustable water dispenser structurally comprises a water inlet pipe, a water purifier, a hot water tank, a cold water tank, a temperature adjusting tank, a controller, a display touch screen, a power supply, a loudspeaker, a boiled water outlet, a cold water outlet, a temperature adjusting water outlet, a cup water sensor, a base and a machine body. According to the temperature-adjustable water dispenser, a tap water purification function, a function of storing boiled water and cooled boiled water, a function of adjusting a water temperature needed by a user, a water dispenser speaking function and a function of monitoring the water capacity of a cup can be realized; the temperature-adjustable water dispenser is convenient and stable and is low in cost.

The invention discloses a fertilizing device and a fertilizing method. The fertilizing device comprises a fertilizing head, a fertilizer storage apparatus and a negative pressure chamber, wherein the fertilizing head is disposed on the bottom of the fertilizing device, equipped with fine pores, connected with the fertilizer storage apparatus, and positioned at a predetermined depth and a predetermined distance away from crop roots in soil; the fertilizer storage apparatus, one end of which communicates with the fertilizing head and the other end of which communicates with the negative pressure chamber, is positioned in the middle portion of the fertilizing device and used to store a fertilizer solution; The negative pressure chamber, the lower portion of which communicates with the fertilizer storage apparatus, is positioned on the top of the fertilizing device and filled with air of preset air pressure and volume, so as to make the water potential of the fertilizing head at a pressure containing reserved air higher than that of the soil corresponding to the vigorous growth of crops and less than that of the soil at the field water capacity. By the application of the fertilizing device and the fertilizing method, the utilization rate of fertilizers can be raised, the waste of fertilizers can be minimized, the cost of crops planted by peasant households can be reduced, and the environmental negative effects of fertilizing can be mitigated.