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

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 discloses an energy-saving type water-changing-free container waterscape which comprises an opening container and water in the opening container. The bottom of the opening container is sequentially paved with a soil layer and a purified packing layer from bottom to top, submerged plants and emergent aquatic plants are planted in the soil layer, floating-leaved plants are paved on thewater face, and aquatic animals are arranged in water. By means of the ecologically-constructed container waterscape, the self-purification function can be maintained, water changing is not needed, only evaporable water needs to be supplemented, only aquatic plants need to be appropriately tailored, and maintenance is simple.

The invention discloses an automatic water adding device with auxiliary electric power. The automatic water adding device is mainly formed by a support, a spring, a water bucket, a control circuit where a proximity switch is located, a water conveying module, an electromagnetic water valve and a hose. According to the situation that the specific gravity of a work water body is fixed, the constant level of the work water surface elevation can be maintained as long as the length change of the spring and the depth change of the water body in the hung water bucket are maintained to be identical, then, along with consumption of the water in the water bucket, the proximity switch is triggered when the water bucket ascends to the set height, the electromagnetic water valve is used for pouring water with the set volume into the container at a time through the water conveying module, the water bucket descends accordingly, and the work water surface elevation is continuously maintained to be unchanged. According to the automatic water adding device, the constant level of the water surface is achieved, and the division of an upper water level and a lower water level does not exist; furthermore, the water with the quantification volume is added at a time through the water conveying module, it is avoided that the circuit of the device is frequently closed and opened at the set water surface elevation, and the fault rate of the circuit is greatly reduced.

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 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.

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 an automatic water replenishing flowerpot. The automatic water replenishing flowerpot comprises a water collecting basin, a planting basin arranged on the inner side of the water collecting bin, and a sponge block arranged at the bottom of the planting basin. An annular water storage groove and an annular liquid storage groove are formed in the upper end face of the water collecting basin. Sliding grooves are vertically formed in the left inner cavity wall and the right inner cavity wall of the water collecting basin, water flow holes penetrate through the portions between the two sliding grooves and the annular water storage groove, capillary holes penetrate through the portions between the two sliding grooves and the annular liquid storage groove, L-shaped channels communicated with the inner cavity walls of the water collecting basin are formed in the bottom side walls of the two sliding grooves, floating blocks are arranged in the vertical portions of the L-shaped channels, a floating rod is connected between the upper ends of the two floating blocks, and the side walls of the upper ends of the two floating blocks are fixedly connected with check blocksfor blocking the water flow holes. The structural design is reasonable, automatic water adding can be achieved, it is guaranteed that water in the water collecting basin is always kept in the same horizontal plane, and therefore normal growth of green plants is guaranteed.