CN2446383Y

CN2446383Y - Hydraulic liquid level self-controlling combiner

Info

Publication number: CN2446383Y
Application number: CN 00239261
Authority: CN
Inventors: 路玉明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-19
Filing date: 2000-06-19
Publication date: 2001-09-05
Anticipated expiration: 2010-06-19

Abstract

The utility model relates to a hydraulic liquid level automatic controlling combined device which comprises a hydraulic valve and a liquid level sensing device. The utility model is characterized in that the hydraulic valve is composed of a valve body, a minitype ball valve, a valve cover, a valve rod, a rubber film and a hole sleeve. The interface of the hydraulic valve is connected with the interface of the liquid level sensing device by a capillary pipe. The utility model has the advantage that the device adopts a hydraulic pressure differential principle to open or close the valve by the pressure of tap water without external force, such as electric power, etc., the structure of the device is simple, the service life is long, and the device has no phenomena of drop, leakage and overflow.

Description

Hydraulic type automatic control of liquid level composite set

The utility model belongs to the water saving fixtures of industrial automation instrument and valve field, particularly a kind of hydraulic type automatic control of liquid level composite set that is applied to the industry water saving.

In industrial production, usually use tank or equipment, water in container constantly uses when consuming, need constantly in container, to replenish, to guarantee to have certain moisture storage capacity, for example: the feedwater of Industrial Boiler (or heating boiler), a container that possesses certain moisture storage capacity is arranged, and guarantee when water pump constantly feeds water in boiler, water in the container will keep certain water level, otherwise will cause the waste of a large amount of excessive formation water resources of water in boiler water shortage accident or the container, and often have the phenomenon of metalling run out in a large number to take place in the reality.The following two kinds of forms of the general employing of automatic control of liquid level at present: 1. electric formula level control: use electric installations such as electrode, mercoid switch, when liquid level surpasses the height prescribed limit, send the signal of telecommunication, control electrically operated valve unlatching or close, this kind method needs electric energy to be used as power, the cost height of whole device, maintenance also bothers, and therefore uses less in the water saving field; 2. ball-cock assembly (ball valve) control: ball-cock assembly is used more at present, its structure and principle all are similar to the ball-cock assembly in the cistern between domestic hygiene, it relies on the buoyancy of ball float, amplify with direct valve-off afterwards by lever, be subjected to the restriction of structure, it can only be installed in the position of internal tank near the water surface, install and repair all inconvenient, to the container of some semitights, for example only stay hand-hole, the container of pore has used difficulty more, in addition, owing to be the position that is installed near the water surface, its material also is restricted, and for preventing corrosion, generally is to make with brass.

The purpose of this utility model is to design a kind of hydraulic type automatic control of liquid level composite set, and it can overcome the deficiency of above liquid level control device effectively, and can control water level automatically to normal pressure tank automatic water supplement, for water saving device has increased new varieties.

The technical solution of the utility model: a kind of hydraulic type automatic control of liquid level composite set, comprise surge valve and liquid level sensing device, it is characterized in that the said valve that surges is made up of valve body, little shape ball valve, valve gap, valve rod, rubber diaphragm and borehole jack, little shape ball valve places on the valve gap, the aperture that press water is led to the above and below of diaphragm is arranged respectively on valve body and the borehole jack, borehole jack and valve body are fixing, and valve rod and diaphragm link together together, adopt between valve rod and the borehole jack to be slidingly matched; The interface of the said valve that surges is connected according to capillary with the interface of liquid level sensing device.

Said liquid level sensing device is established the liquid level gauge of floating drum in can being or is installed in the ball float of internal tank.

Establishing the liquid level gauge of floating drum in the said liquid level sensing device is made up of table body, table pipe, floating drum, driving lever, connecting rod, loam cake, little valve body, steel ball, thimble, slide block, wherein floating drum is contained in the table body, the floating drum top is connected with little valve body according to connecting rod, driving lever connects slide block, thimble and slide block are fixed as one, and can slide at the Kong Zhongcheng of valve body, and steel ball is enclosed under the valve port of little valve inner, thimble is butted under the steel ball, and little valve body is installed on the table body according to screw.

Above-mentioned said valve rod can be made solid, also can be made into hollow.

Operation principle of the present utility model, installation and operation instruction: form by valve and liquid level gauge two parts by surging for this device (counting example with the liquid level of establishing floating drum in the liquid level sensing device), the function one of liquid level gauge is the liquid level that shows in the container, the 2nd, according to the liquid level height, send the action command of opening or closing to the valve that surges, hydraulic valve is according to the signal of accepting, feedwater or stop feedwater in container.The valve body of this valve that surges adopts the valve body structure that is similar to stop valve, but be to install in the other direction when using, so just can cut down the changement that to set up when general hydraulic pressure execution architecture commutates, draw a capillary thereby reach, the keying of controlling the current in this capillary can reach the purpose of the valve opening and closing that surges.Make and rely on the fluid power automatic control to become possibility.Originally the valve that surges is done power by hydraulic pressure and is come execution, has therefore both made under the state of valve opening, and the back in front of the door certain pressure differential of also necessary maintaining valve when needs are closed, is just understood dynamic finishing like this., disposed borehole jack here, main effect is to obtain certain pressure reduction by limited flow, and the quantity in hole and aperture are according to the size of valve aperture and each is variant on the borehole jack; The effect of borehole jack also has two other, the one, because being counterintuitive opposite direction, installs valve body, the lifting resistance that valve rod in the time of can overcoming valve opening effectively is set of borehole jack, the 2nd, can eliminate the hydraulic shock phenomenon that quick closedown caused that forms owing to the suck-back effect when closing.

Superiority of the present utility model is: 1, this device adopts the hydraulic differential principle, and the action of finishing valve opening and closing by running water self pressure does not need other external force such as electric power fully; 2, this device is installed in the tank outside, and therefore maintenance and installation portion are more convenient, and various forms of containers all are suitable for; 3, owing to be to use at external container, the selection of material can be relaxed greatly, and except that the minority attrition surface, other can select plastic materials such as general steel, cast iron or ABS, PVC for use; 4, this apparatus structure is simple, the valve pad on valve and a slice rubber diaphragm, does not have consumable accessorys such as other sealing rings and spring, therefore in the frequent occasion that opens and closes, can improve service life greatly; Though 5 install and use at external container, owing to there is not dynamic sealing point, do not need packing filling etc., therefore do not have the evaporating, emitting, dripping or leaking of liquid or gas phenomenon.

Further specify present technique below in conjunction with drawings and Examples.

Accompanying drawing is the related a kind of hydraulic type automatic control of liquid level composite set overall structure schematic diagram of the utility model.

Wherein: 1 is valve body, and 2 is little shape ball valve, and 3 is valve gap, and 4 is valve rod, and 5 is rubber diaphragm, and 6 is borehole jack, 7 are the table body, and 8 are the table pipe, and 9 is floating drum, and 10 is driving lever, and 11 is connecting rod, and 12 is loam cake, 13 is little valve body, and 14 is steel ball, and 15 is that thimble, 16 is slide block, and 17 is capillary, and a, b are respectively aperture.

Embodiment: a kind of hydraulic type automatic control of liquid level composite set (seeing accompanying drawing), comprise surge valve and liquid level gauge, it is characterized in that the said valve that surges is made up of valve body 1, little shape ball valve 2, valve gap 3, valve rod 4, rubber diaphragm 5 and borehole jack 6, little shape ball valve 2 places on the valve gap 3, the aperture a and the b that press water are led to the above and below of diaphragm are arranged respectively on valve body 1 and the borehole jack 6, borehole jack 6 and valve body 1 are fixed together, valve rod 4 and diaphragm 5 link together, and adopt between valve rod 4 and the borehole jack 6 to be slidingly matched; Said liquid level gauge is made up of table body 7, table pipe 8, floating drum 9, driving lever 10, connecting rod 11, loam cake 12, little valve body 13, steel ball 14, thimble 15, slide block 16, wherein floating drum 9 is contained in the table body 7, floating drum 9 tops are connected with little valve body 13 according to connecting rod 11, driving lever 10 connects slide block 16, thimble 15 and slide block 16 are fixed as one, can slide at the Kong Zhongcheng of little valve body 13, steel ball 14 is enclosed under the valve port of little valve body 13 inside, thimble 15 is butted under the steel ball 14, and little valve body 13 is installed on the table body 7 according to screw; Capillary 17 connects two interfaces of the little valve body 13 on little shape ball valve 2 and the liquid level gauge on the valve that surges.

Above-mentioned said valve rod 4 can be made solid.

The course of work of the present utility model: during installation, liquid level gauge is installed according to liquid level required in the container, the valve that surges can be installed in high position slightly, also can parallelly install, after installing, both interface is coupled together with capillary 17 thin plastic pipe, the nylon tube of bearing certain pressure (can), open little shape ball valve 2, whole device promptly enters automatic mode, and water level in the container is remained in the shown scope of sighting rule 8.

Shown position is the high water level closed condition, use consumption along with water in the container, water level can descend gradually, when dropping to a certain degree, the gravity of floating drum 9 has overcome hydraulic pressure and has acted on pressure on the steel ball 14 in the liquid level gauge, by connecting rod 11, driving lever 10, stir on the slide block 16 and move, thimble 15 backs down steel ball 14, at this moment the current in the capillary are open-minded, constantly flow in the container by the hole on the little valve body 13, make valve diaphragm 5 tops of surging be in depressurization phase, the pressure that this moment, diaphragm 5 belows were subjected to remains the hydraulic pressure of running water, diaphragm 5 below drive on the valve rod 4 under the effect of pressure and move, make the valve opening that surges, water is pressed in the container through the outlet of the many holes on the borehole jack by valve, water level in the container is raise gradually, when the water level in the container is raised to a certain degree, buoyancy has overcome the gravity of floating drum 9, make on the floating drum and move, and by connecting rod 11, driving lever 10 is stirred slide block 16 and is moved down, steel ball 14 resets under the effect of current, has closed the current in the capillary, and the pressure of valve diaphragm 5 tops of surging this moment raises, make, the pressure of below reaches balance, because on the diaphragm 5, the compression area of below is unequal, and the top area is greater than the below, and diaphragm 5 is up under the effect of thrust, driving valve rod 4 moves down, the hole of borehole jack 6 at first is closed, and pressure further raises, the position of reaching home then, the valve that surges is firmly closed, and returns to the illustrated beginning position of opening.

The present tap water hydraulic in general area is 0.2-0.3Mpa, and this device is suitable for the tentative 0.1-0.4Mpa of being of pressure.

Claims

1, a kind of hydraulic type automatic control of liquid level composite set, comprise surge valve and liquid level sensing device, it is characterized in that the said valve that surges is made up of valve body, little shape ball valve, valve gap, valve rod, rubber diaphragm and borehole jack, little shape ball valve places on the valve gap, the aperture that press water is led to the above and below of diaphragm is arranged respectively on valve body and the borehole jack, borehole jack and valve body are fixing together, valve rod and diaphragm link together, and adopt between valve rod and the borehole jack to be slidingly matched: the interface of the said valve that surges is connected according to capillary with the interface of liquid level sensing device.

2,, it is characterized in that liquid level sensing device establishes the liquid level gauge of floating drum in can being or be installed in the ball float of internal tank by the said hydraulic type automatic control of liquid level of claim 1 composite set.

3, by the said hydraulic type automatic control of liquid level of claim 2 composite set, establishing the liquid level gauge of floating drum in it is characterized in that in the liquid level sensing device is made up of table body, table pipe, floating drum, driving lever, connecting rod, loam cake, little valve body, steel ball, thimble, slide block, wherein floating drum is contained in the table body, the floating drum top is connected with little valve body according to connecting rod, driving lever connects slide block, thimble and slide block are fixed as one, can slide at the Kong Zhongcheng of valve body, steel ball is enclosed under the valve port of little valve inner, thimble is butted under the steel ball, and little valve body is installed on the table body according to screw.