42results about How to "Constant water level" patented technology

The invention discloses a time domain reflection technology-based moisture transport measuring device. The device comprises a soil accommodating cylinder, a water accommodating base, a technical data report (TDR) soil moisture quick measurer and a water supply device, wherein a soil body sample is filled in the soil accommodating cylinder; the bottom end of the soil accommodating cylinder is matched with the top end of the water accommodating base; the middle part of the water accommodating base is a cavity; a water-permeable support component is arranged in the cavity; a water inlet pipe and a water level observing pipe are arranged outside the water accommodating base; the TDR soil moisture quick measurer comprises a probe, a wire and a host; the probe is embedded in the soil body sample of the soil accommodating cylinder; one end of the wire is connected with the probe; the other end passes through a through hole on the wall surface of the soil accommodating cylinder and can be connected with the host; the water supply device comprises a water supply tank and a base plate; the water supply tank is positioned above the base plate; an elastic bearing device is connected between the water supply tank and the base plate; and the water outlet of the water supply tank is connected with the water inlet pipe of the water accommodating base by a conduit. The moisture content in the soil body can be accurately measured in real time by the moisture transport measuring device.

The invention discloses a simulation test model device for studying hyporheic exchange under drive of flood pulse and a using method thereof. The simulation test model device comprise a trough body, an upstream ground surface water supplementing system, an underground water control box and a flood pulse driving device. A partition plate capable of dividing the trough body into a water level control chamber and a water discharging chamber, and a river nearby beach model is arranged in the water level control chamber. The underground water control box can perform hyporheic exchange with the river nearby beach model. The flood pulse driving device comprises a lifting piston capable of lifting in a partition plate and a periodic waveform driving device. The lifting piston can periodically lift under the drive of the periodic waveform driving device and enables a flood peak process line in the water level control chamber to change periodically. After the simulation test model device and the using method are adopted, the upstream ground surface water level periodically and proportionally changes along the flood peak process line under the drive of the periodic flood pulse, and the downstream underground water level is kept constant and is approximate to the hyporheic exchange situation of a natural flooding beach land.

The invention discloses a foundation pit groundwater recharging system. The foundation pit groundwater recharging system comprises a back wash unit, a water pumping well, a one-level water storage tank, an aeration unit, a one-level filter, a two-level filter, a two-level water storage tank and a recharge well. The water pumping well, the one-level water storage tank, the aeration unit, the one-level filter, the two-level filter, the two-level water storage tank and the recharge well are sequentially connected. The back wash unit is connected with the one-level filter and the two-level filter. The foundation pit groundwater recharging system further comprises a control treatment unit and a water level monitoring unit which is connected with the water pumping well, the two-level water storage tank and the recharge well. The control treatment unit comprises a water pumping control subunit connected with the water pumping well, a water treatment control subunit connected with a recharge water quality treatment system and a recharge and flow control subunit connected with the recharge well. According to the foundation pit groundwater recharging system, the effect that land subsidence surrounding a foundation pit due to rainfall is avoided can be ensured, and meanwhile, optimization of recharge water quality is further really achieved. After recharge of recharge water is finished, drop of the water level of regional groundwater, water quality reduction and pollution do not occur, blocking of the recharge well is also avoided, and the recharge effect is good.

The invention relates to a vertical greening system easy to maintain and belongs to a greening device arranged on the vertical surface of a building. The vertical greening system comprises a plurality of planting boxes, water absorption filler layers, planting soil layers and an irrigation system, wherein the water absorption filler layers and the planting soil layers are arranged in the planting boxes, and the irrigation system is used for supplying water for the planting boxes. The vertical greening system is characterized by further comprising a plurality of grooved support plates parallelly arranged in an up-down manner. The planting boxes (2) are evenly arranged in each grooved support plate. The irrigation system comprises a water supply pipe arranged at the upper end of the highest grooved support plate, a capillary connected between the water supply pipe and the highest grooved support plate, an overflow pipe connected between every two adjacent grooved support plates, and a timing irrigation water valve for controlling the water supply of the water supply pipe. The vertical greening system has the advantages that the grooved support plates can be conveniently and firmly mounted on a common wall surface or a vertical keel, the irrigation system is simple and effectively, the system needs not to be maintained in several years, and the system is widely applicable to the greening of the vertical walls of high-rise buildings.

The invention provides a process and a system for using waste heat of steam of a steam box. The waste heat of the steam of the steam box can be efficiently recycled, crossed gas mixing is avoided, the environment of an operation room is purified, and the energy utilization rate is increased. The process comprises the following steps of (1) recycling the heat of the steam; (2) transferring the stored heat; and (3) using the transferred heat. The system comprises the steam box, a heat storage water tank, a circulating water tank, a domestic hot water terminal, a connecting pipeline and a valve, wherein a steam outlet of the steam box is connected with a steam inlet of the heat storage water tank; a heat exchanger is arranged in the heat storage water tank; an outlet and an inlet of the heat exchanger are respectively connected with a high-temperature circulating water inlet formed in the upper portion of the circulating water tank and a low-temperature circulating water outlet formed in the bottom of the circulating water tank correspondingly; and the high-temperature circulating water outlet formed in the upper portion of the circulating water tank is connected with the domestic hot water terminal. The grade of the heat is increased by primary heat exchange, the heat is transferred by secondary heat exchange, and finally the heat is used at the domestic hot water terminal.

The present invention discloses an energy-saving, ecological, and automatic irrigation system. The system includes a downpipe, a water supply pipe, a water collecting container arranged under the downpipe, an overflow pipe arranged on the side wall of the water collecting container, an irrigation container arranged below the overflow pipe, and a water delivery pipe for irrigation arranged on the side wall of the irrigation container; a water supply pipe outlet is situated above the water collecting container, a floating ball valve is arranged above the water supply pipe, and a floating ball of the floating ball valve is located in the irrigation container. A deinsectization device for providing food for aquatic animals and plants in the water collecting container is arranged above the water collecting container. The system is provided with the water collecting container and the irrigation container, and collected rainwater is used separately for aquatic animal and plant cultivation and irrigation so that the water quality between the water collecting container and the irrigation container cannot be affected. The arranged downpipe cooperates with the water supply pipe and the floating ball valve, so that the water level of the water collecting container and the water level of the irrigation container are kept basically constant. The deinsectization device arranged above the water collecting container can provide food for aquatic animals and plants in the water collecting container.

A birdbath fountain includes a water reservoir and recirculating system. Water for the fountain is pumped from the reservoir, with the excess water from the bowl being returned to the reservoir, thereby allowing for a bowl which remains full or at a consistent depth for a longer period of time, including periods of dry or windy weather conditions. In the preferred configuration, the bowl has a depth defined by an outer raised rim and an inner raised rim. A water-containing reservoir having a depth greater than the depth of the bowl resides within the inner raised rim. An electrically operated submersible pump disposed in the water-containing reservoir is operative to pump water from the reservoir to the fountain head, after which the water returns to the bowl. At least one notch in the inner raised rim provides a fluid path from the bowl back to the reservoir, thereby keeping the water level of the bowl substantially constant.

The invention relates to a physical model for affecting a layered reservoir water temperature structure by silt carrying flow and an experimental method, and belongs to the technical field of water environment research in water resource and hydropower engineering. According to the method, the influence on the vertical water temperature of a reservoir by the silt carrying flow can be simulated in alaboratory by controlling the inflow sand content, water temperature and initial vertical water temperature distribution of environmental water. A PIV two-dimensional flow field measuring device is adopted to effectively capture the silt carrying flow, density current forward flow field distribution is formed, and important flow field verifying data are provided for model verification of numerical simulation. Quartz sand is adopted to simulate suspended sediments in the silt carrying flow in testing, and the phenomenon that the silt carrying flow forms bottom density currents and inter-layerdensity currents to influence the water temperature structure is successfully simulated. An electrical heating bar is adopted in a heating device for heating at a water temperature thermocline position, the heating speed is higher compared with that of an existing lamplight heating mode, the thermocline position can be controlled conveniently, and the initial temperature field can be controlled more accurately.

An aquarium filtration system with enhanced features comprising a continuous flow of filtered and processed water as well as a continuous drain system is herein disclosed. In such a manner, the water is continually changed over time, thus minimizing required emptying and/or cleaning. Additionally the system holds and maintains the desired pH level and water hardness, while controlling ammonia and nitrite levels. A filter on the incoming water line removes chlorine and other chemicals before the water passes onto the aquarium. The system works in conjunction with a conventional automatic water level controller. Automatic check valves control water flow and prevent back flow.

An energy efficient electrically operated steam generator is capable of producing pressure less high temperature as well as superheated steam. It comprise of main body (14) defined by side wall, roof (2) and open bottom, securely fixed to the rim of water holding tray (7). Said roof is provided with steam outlet nozzles (16) to allow the steam to emerge out of the steam generator. A porous ceramic honeycomb (3) with plurality of parallel channels (4), and grooves (5) or holes (23) are created therein for inserting heating element (6). One end of all the channels (4) is always submerged in water (11) in tray (7), and the other end of most of the channels is open to the roof and both ends of the heating element are connected to the power source for heating the water to generate steam.

The invention discloses a giant salamander culture pond with a constant water level. The giant salamander culture pond is used for culture of giant salamanders and comprises a glass water pond. A water inlet pipe is arranged above the water pond. A water discharge pipe is arranged on the bottom portion of the water pond. 3-5 water limiting holes are longitudinally formed at intervals in the side wall of any face of the water pond. Rubber plugs are plugged into the water limiting holes. The giant salamander culture pond has the advantages that the water level in the culture pond can be limited through the water limiting holes, the water level in the pond can be kept constant, and the rubber plugs can be opened or closed to control the height of the water level.

The invention provides a loop heat pipe heat exchange device of mobile phone APP water level intelligent control. A motor is connected with a draught fan and drives the draught fan to rotate, the motor, a water sensor and a central controller are in data connection, wherein the central controller is connected with a cloud end server, and the cloud end server is connected with a client end. The controller transmits water level data and motor frequency data measured by the water level sensor to the cloud end server, then, the water level data and the motor frequency data are transmitted to the client end through the cloud end server, the client end is a mobile phone, an APP is installed in the mobile phone, a working pattern of automatic control or manual control can be selected by a user atthe client end, and the controller controls the frequency of the motor according to the working pattern selected by the user. According to the loop heat pipe heat exchange device of the mobile phoneAPP water level intelligent control, the water level of a heat exchange system is monitored through the mobile APP, and intelligent control of remote monitoring of the heat exchange system is realized.

The present invention relates to a bio-ink supply system, and more particularly, to a bio-ink supply system comprising: a hydrogel storage part; a cell storage unit; a mixing unit for receiving the hydrogel and the cell solution from the hydrogel storage unit and the cell storage unit; a sensor part for measuring the water level of the bio-ink inside the syringe; and a control section that receives a signal from the sensor section to maintain a constant water level of the bio-ink inside the syringe, and the mixing section supplies the bio-ink prepared by mixing a hydrogel and a cell solution to the syringe. The bio-ink supply system according to the present invention can continuously supply active bio-ink to a syringe of a bio-printer even in a 3D bio-printing process, and thus can continuously print large-scale living body tissues, or a plurality of orgonoids, organ chips, and the like.