Embodiment
Embodiment one, this embodiment is described in conjunction with Fig. 1, the constant water level auto control system of a kind of high precision, it comprises water tank 2 and water tank bracing frame 1, a water tank 2 is suspended on the top of the container 5 for the treatment of water filling, and the water delivering orifice of a water tank 2 is towards the container 5 for the treatment of water filling, and the water delivering orifice of a described water tank 2 stretches in the container 5 for the treatment of water filling; The center line of the water delivering orifice of a water tank 2 and the angle of vertical direction are between 0 degree and 90 degree, and No. one water tank 2 is fixed on the water tank bracing frame 1.
Principle of work: a water tank 2 of the present invention is upside down in the top of the container 5 for the treatment of water filling, water in water tank 2 flows into the pond through water delivering orifice under the effect of gravity, the inside of a water tank 2 forms negative pressure simultaneously, air enters the inside of a water tank 2 through water delivering orifice under the effect of the outside of a water tank 2 and air pressure inside difference.The container 5 interior water levels for the treatment of water filling progressively rise, until the water delivering orifice that floods a water tank 2, air can not enter water tank 2 inside again No. one, cause in a water tank 2 and form negative pressure, No. one water tank 2 interior water can not flow in the container 5 for the treatment of water filling owing to the negative pressure swabbing action again, thereby water level is controlled in the aperture position of a water tank 2, has promptly realized the control of constant water level.
The present invention only relies on the effect of liquid gravity and atmospheric pressure to realize without any need for additionaling power; The present invention is simple in structure, working stability.
The present invention is under the situation of corrosion resistivity and structural stability at the material that guarantees a water tank 2, can also carry multiple liquid, realizes the constant of multiple liquid level.
The difference of embodiment two, this embodiment and the constant water level auto control system of embodiment one described a kind of high precision is, has water supplement port on the water tank 2.
The difference of embodiment three, this embodiment and embodiment one or the constant water level auto control system of two described a kind of high precision is, it also comprises plug 3, No. one water tank 2 tops have water supplement port, and plug 3 is with the sealing of the water supplement port on water tank 2.
The course of work of present embodiment is: original state, No. one valve 4 is closed, water supplement port 2 sealings.
During work, open water supplement port 2,, then, use plug (rubber plug) sealing water supplement port 2 topped up with water in water tank 2.The water of opening in 4, numbers water tanks 2 of a valve treats in the container 5 of water filling that by the water delivering orifice inflow simultaneously, ambient atmos enters water tank 2 inside No. one by water delivering orifice, realizes water and gas exchange, with water tank of balance 2 inside and outside pressure.Treat that the water level in the container 5 of water filling constantly rises, until the water delivering orifice that floods a water tank 2.At this moment, gas can not enter in water tank 2 again, and the water in water tank 2 also can't flow out from a water tank 2 again, and container 5 middle water levels for the treatment of water filling are by the constant water delivering orifice position that is controlled at a water tank 2.
When the outside draining of the container 5 for the treatment of water filling, when container 5 decline of water tables for the treatment of water filling, the water delivering orifice of a water tank 2 communicates with air, air enters in water tank 2, cause the water in the water tank 2 to flow out to the container 5 for the treatment of water filling once more, the water level in the container 5 for the treatment of water filling floods the water delivering orifice of a water tank 2 once more.Carry out so repeatedly, realize to keep treating that the water level in the container 5 of water filling is constant.
When the current in water tank 2 to the greatest extent after, close valve 4 No. one, original state is got back to by system.
Embodiment four, this embodiment is described in conjunction with Fig. 2, this embodiment is with the difference of the constant water level auto control system of embodiment three described a kind of high precision, it also comprises water tank 7 No. two, described water tank 2 lower sidewall have water supplement port, the side wall upper part of a described water tank 2 has scavenge port, the moisturizing hole of a described water tank 2 is communicated with the water delivering orifice of No. two water tanks 7, and the air-vent of a described water tank 2 is communicated with the scavenge port of No. two water tanks 7.
The difference of embodiment five, this embodiment and embodiment one or the constant water level auto control system of four described a kind of high precision is, it also comprises valve 4 No. one, a described valve 4 is arranged on the water delivering orifice place of a water tank 2, is used to control passing through or ending of water in water tank 2.
The difference of embodiment six, this embodiment and the constant water level auto control system of embodiment five described a kind of high precision is, also comprise two No. two valves 9, described two No. two valves 9 are separately positioned on the water delivering orifice place and the scavenge port place of No. two water tanks 7.
The difference of embodiment seven, this embodiment and the constant water level auto control system of embodiment six described a kind of high precision is, it also comprises Pneumatic unidirectional valve 6, the top of No. two water tanks 7 has air-vent, and Pneumatic unidirectional valve 6 is arranged on described air-vent place.
The course of work of present embodiment is: original state: two No. two valves 9, No. two water tank moisturizing valves 8 are all closed.At first, open water tank moisturizing valve 8 No. two, adopt water pump, head-tank or other relevant devices topped up with water in No. two water tanks 7.Add in the water process, the air in No. two water tanks 7 is compressed and causes its inner air pressure greater than ambient pressure, at this moment, opens Pneumatic unidirectional valve 6, makes No. two air pressure in the water tank 7 revert to atmospheric pressure.So, in No. two water tanks 7, close Pneumatic unidirectional valve 6 after the topped up with water.Then, close water tank moisturizing valve 8 No. two, open two No. two valves 9, under the effect of gravity, treat in the container 5 of water filling in No. two water tanks 7 by flowing in the water tank 2, and a water tank 2 and No. two water tank 7 inside form negative pressure at short notice, Pneumatic unidirectional valve 6 cuts out, form closed environment in a water tank 2 and No. two water tanks 7, following process is identical with this partial content in the embodiment, thereby will treat the constant water delivering orifice place that is controlled at a water tank 2 of water level in the container 5 of water filling.When current in No. two water tanks 6 to the greatest extent the time, close two No. two valves 5, original state is got back to by system.
The difference of embodiment eight, this embodiment and the constant water level auto control system of embodiment seven described a kind of high precision is, it also comprises water tank moisturizing valve 8 No. two, No. two water tank 7 has backed down water supplement port, and No. two water tank moisturizing valve 8 is arranged on described water supplement port place.
The difference of embodiment nine, this embodiment and the constant water level auto control system of embodiment eight described a kind of high precision is, the volume of No. two water tanks 7 be a water tank 2 volume N doubly, N is the positive number greater than 1.
The volume of No. two water tanks 7 can be many times of water tank 2 volumes in the present embodiment, can increase the water yield of system's one action greatly, and can dwindle the volume of a water tank 2 greatly, and control is practical more flexibly automatically to make water level proposed by the invention.
The difference of embodiment ten, this embodiment and the constant water level auto control system of embodiment nine described a kind of high precision is that place, the bottom surface level of No. two water tanks 7 is higher than the water delivering orifice peak place surface level of a water tank 2.
Present embodiment need not adopt other auxiliary setting, can realize the operate as normal of system.