CN104968982A - A fluid flow control arrangement adapted to maintain a fluid level within a containment area - Google Patents

Abstract

A fluid flow control arrangement adapted to maintain a fluid within a containment area to a set fluid level. The arrangement includes a float device within a hollow chamber resting inside the fluid containment area in communication with a pivotally supported arm which in the raised position is adapted to close a valve arrangement to stop a flow of fluid from a supply inlet side through to an outlet side of the fluid control arrangement into the containment area and when said pivotally supported arm is in the lowered position is adapted to open the valve arrangement to allow a flow of fluid from the supply inlet into the containment area.

Description

A kind of adaptation maintains the fluid flow control device of volume area inner fluid liquid level

Technical field

The present invention relates to a kind of newly with improvement fluid flow control device, this fluid flow control device uses the adaptive valve system maintaining appropriate fluid liquid level in volume area, and the present invention relates more specifically to a kind of valve system, this valve system relates to the use of floating equipment, this floating equipment can overcome or get rid of the shortcoming of conventional former available float valve, other impact (this upsets the functional of control mechanism) that such float valve is produced the structure characteristic of the valve be included in fluid by the solid of encrustation and dissolving, and the problem of inappropriate release fluids by the fluctuating of interval fluid level usually caused by surface wave motion etc., thus cause excessively using to provide fluid to flow through this device valve system and/or pump and valve system collaborative work.

Background technique

As usual, the valve system of floating equipment is used to provide simple and constructional device easily, in order to being control fluid flowing in lifting position or lowering position according to float, float is the fluid level depended in lifting position or lowering position in volume area.

Such as, in animal groove, float will be connected to an arm, foreseeable, when fluid level in groove declines, the control valve that this arm is simple to operate, wherein animal from groove drinking-water and/or evaporation or other environmental conditionss see water level decreasing, float reduces and wherein the reduction of float activates the attached arm being connected to valve system and flows between the entrance and exit of device to allow water.

In many cases, thisly become easy to the control of groove by using pump to water, when therefore each groove middle water level needs to promote, meanwhile, pump will be unlocked to be helped by control valve mechanism in water inflow groove.

But as will be appreciated, float is the external equipment exposed, and its structure characteristic is simplified, is subject to element and water surface disturbance in groove.

In many fluid flow control devices, usually being settled out from solution by the solid dissolved and becoming fouling in water is formed on float and valve system, cause gathering to a certain extent, this gathering likely can block float in any position, and fluid level no matter in volume area how, in this example, volume area we refer to a kind of animal groove.

Therefore can find out, if float is stuck in a position, and do not consider the position of fluid level, valve can be fixed on "ON" or off-position, and any one position all has potential adverse effect.

Such as, if the fouling on floating equipment is such so that valve system is maintained at open position, so result will be that water passes valve lasting inflow groove, overflow and waste extremely valuable resource.

Focus attentions equally on be, if fouling effect is such so that floating equipment or related valves mechanism become and be stuck in operating position when trough inner water position becomes decline, due to the fact of salt fouling on valve system, as long as valve work, float just effectively remains on lifting position and so there is no water and enters in groove, and so there is no further water will be introduced into.

When groove fluid level remains on low or empty, those rely on grooves for feedwater animals start to become dehydration, and if the fault of idle valve is not identified in reasonable time, he those animals will dies.

The other problem of conventional float mechanism relates to such fact, namely when the apparent motion of float fluid-responsive moves up and down, the things of such as wave motion etc. is identified and be interpreted as decline and/or the fluctuating of fluid level simply by float, although be temporarily, this will cause water to be joined in fluid volume area constantly in short time interval.

The easy imagination is in swimming pool, and when there being motion, people jump etc., and wave motion will be introduced in swimming pool.

Use conventional float mechanism, the apparent motion of this ripple is identified immediately by float and works as float when moving downwards through the trough of ripple, this is identified as fluid level and declines and therefore open current, although just temporarily, but because then the moving upward of float at the crest place of period of wave will see that valve system is closed, will also draw water if be comprised in valve system in water system.

The following fact has increased the weight of this problem: interval is unnecessarily filled swimming pool in fact continuously; Rely on that the pump of pump draws water open and pass situation means the excessive use of pump, thus add the operating cost of pump and maintenance and cause shorter use operating life.

Same situation is same relevant in animal groove, in animal groove, not only wind etc. can produce the slight fluctuating that the motion of animal in the movable but also groove of surface wave to a certain degree and their drinking motion all cause fluid level, although and again temporarily, but still use conventional valve gear will see "ON" and "Off" fluid or be fed water by control valve unit pump, because for the float mechanism exposed, use these conventional equipments to have no idea to avoid the rising as the result of surface wave and decline.

Therefore, if likely fluid control device is introduced in correlative technology field to maintain the fluid level in volume area (as swimming pool, animal groove and/or vaporizing type air conditioner), this is by particularly advantageous, and it can be avoided these problems relevant to the salt fouling on the valve system opened and close of responsible valve and also can solve the problem relevant with not responded the instantaneous fluctuating of volume area inner fluid liquid level by surface wave.

The object of this invention is to provide a kind of fluid control device, it can use relocation mechanism to maintain volume area inner fluid liquid level, this relocation mechanism is not by the scale effect of undissolved salt on valve system in any substantial extent, and this relocation mechanism flows through valve system and the impact that will be not also subject to by mistake allowing fluid to flow through valve system (this fluctuating only caused due to the fluctuation in the flow surface in volume area or carry out self-relocation or any physical disturbance of other fragment in it) by controlling fluid.

Summary of the invention

Correspondingly, in a kind of form of the present invention, provide a kind of adaptation to maintain the fluid flow control device of volume area inner fluid to the fluid level of setting, described device comprises:

Cavity, its hollow cavity outer wall adaptation rests in the fluid that is maintained in volume area at least in part, and its hollow cavity is arranged and is adapted when being sucked into convenient fluid or discharging cavity, and the fluid level in cavity is consistent with the fluid level of volume area;

Floating equipment, adaptive next fluid in cavity floats, and this floats in the float lifting position when reaching the fluid level of setting with between the fluid in cavity is lower than the float lowering position during fluid level set;

Described floating equipment be communicated with pivotal support arm with convenient floating equipment when float lifting position pivotal support arm in lifting position, and when floating equipment is at float lowering position pivotal support arm at lowering position;

The described pivotal support arm of lifting position adaptive come shut-off valve assembly with stops fluid from supply entrance effluent through to fluid control device outlet side thus enter described volume area, and when described pivotal support arm opens control valve unit to allow fluid from supplying entrance effluent warp to the outlet side of fluid control device and then enter in described volume area in lowering position adaptation.

Correspondingly, in another kind of form of the present invention, provide a kind of adaptation to maintain the fluid flow control device of volume area inner fluid liquid level, described device comprises:

Cavity, its hollow cavity outer wall adaptation is immersed in the fluid of volume area at least in part.

Floating equipment, adaptation fluctuates in cavity according to the liquid level of the fluid inside cavity.

Described floating equipment is communicated with pivotal support arm, and pivotal support arm is raised according to the rising of floating equipment in cavity and lowering position and declines.

Described arm is communicated with control valve unit and flows out to control fluid and enter in described volume area from supplying entrance side via outlet side; And

So that fluid is sucked into or discharges described cavity with consistent with fluid level when using, cavity is immersed in the fluid of volume area at least in part, so that the rising of cavity fluid inside is characterized by the rising of floating equipment, the rising lifting pivot arm of floating equipment enters raised position, raised position is delivered to control valve unit, make the fluid level reaching volume area, and wherein when water is drawn out of from cavity, it is lowered sign by floating equipment, reduce pivotal support arm thus, the decline of pivotal support arm is passed to control valve unit with identified, make the fluid level in volume area in the below of the fluid level preset and correspondingly then fluid be conveyed through control valve unit, volume area is entered through outlet from entrance.

Preferably, cavity has the longitudinal cylindrical body with valve system, and valve system is at this cylindrical body top.

Preferably, fluid flow control device comprises floating slider further.

Preferably, control valve unit comprises the valve body at the top that can be fixed to cylindrical cavity.

Preferably, valve body comprises installation supporting element, and guiding elongated portion can be stretched to installation supporting element from the inner length along cylindrical cavity.

Preferably, guiding elongated portion is columniform, and its opening end is adapted for and can fixes or rest on the inside dimple of cylindrical cavity base portion.

Preferably, guiding elongated portion threadably can join valve body to be at one end fixed against valve body by thread rack in mounting point guiding elongated portion, and is fixed by being fixed by the inside dimple around cylindrical cavity at the other end.

Preferably, fluid flow control device comprises the floating slider connecting floating equipment further.

Preferably, floating equipment is generally circular configuration and has the size that diameter is reduced to cylindrical cavity diameter.

Preferably, floating equipment comprises interior threaded hole, and floating slider comprises corresponding screw thread, so that floating equipment can be screwed on by floating slider screw thread and screw off as required, to set up predeterminable fluid level, be that fluid volume area is operated to this default fluid level for control valve unit.

Preferably, floating slider is included in skirt section and/or the shoulder of the horizontal expansion of described floating slider upper end.

Preferably, pivotal support arm comprises the hook-shaped configuration being positioned at one end, and wherein the adaptive skirt section around the horizontal expansion of floating slider of hook-shaped configuration and/or shoulder hook and engage skirt section and/or the shoulder of the horizontal expansion of this floating slider.

Preferably, pivotal support arm comprises circular cam arrangement in the opposite end of the hook-shaped configuration of pivotal support arm.

Preferably, the circular cam configuration contact engages actuator push rod of pivotal support arm.

Moving upward of the decline level of the floating equipment inside cylindrical cavity and actuator rod is interrelated, actuator rod is communicated with valve system and comprises the primary seal that the entrance of control valve unit and the outlet of control valve unit are separated, so that the rise of the rise of actuator rod and valve seat is interrelated enter fluid volume area to allow fluid to flow out through control valve unit.

The advantage of this device is that floating equipment is internally housed in first and is more generally called as in the cylindrical cavity of tank.

Because floating equipment is placed on inside cavity, therefore under it is not exposed to external environment condition, the salt that Precipitation dissolves by the evaporation of fluid that wherein fluid control device is controlling also becomes fouling in the structure characteristic of control valve unit potentially, makes defective valve by floating equipment of making dirty in arbitrary "ON" constantly or off-position.

Fortunately, in the present invention, those structure characteristics be associated with floating equipment are all housed in inside the main tank block of control cylindrical cavity of air in it easily and uniquely.

Preferably, cavity is included in the entrance of its base portion, and enabling fluid flow is through the speed outflow greatly reduced in it and with the wave motion speed in specific volume region.

In other mode of execution, allow the inlet opening of fluid turnover cavity or tank can be located at below preferably fluid liquid level Anywhere along cavity.

But as expected, when tank is placed in fluid volume area (as animal groove, vaporizing type air conditioner, swimming pool etc.), water by initial in required liquid level.

Floating equipment will be positioned in the preferred liquid level of volume area inner fluid, and when rising with the fluid level in convenient groove, vaporizing type air conditioner and/or swimming pool etc. and decline, floating equipment is along with action.

When water is drawn out of also in volume area thus fluid level declines and therefore floating equipment moves on to lower position, this will fall pivot arm, pressure actuator rod upwards pushes away by pivot arm, then control valve unit is engaged, see that the rising of valve seat enters volume area until reach required fluid level in volume area to allow water through control valve unit eventually through valve system, this will again with following true sign, namely at this time point, water will enter cylindrical cavity, thus cause floating equipment to rise, this then causes pivot arm to be placed into raised position and actuator rod is lowered to this position, and primary seal turns back to its valve seat place, therefore any further fluid is stoped to flow into into volume area from valve system.

In other purposes, device is equipped with superior in head case, vaporizing type air conditioner, swimming pool, animal groove etc.Further, valve to be installed on non-rigid support part and still can to realize the function of Liquid level.

When with reference to preferred implementation and accompanying drawing, more detailed aspect of control valve unit and integrated model will be discussed in more detail.

However, what described at this time point is a kind of fluid flow control device of uniqueness, this device is maintained at inside tank as floating equipment, mean that it is subject to less external environment influence, as evaporation etc., this can cause the fouling for float and valve system structure characteristic, thus makes them not work.

It is also important that, the control moved up and down inside hollow cylindrical chamber due to floating equipment is determined by the water entering and leave the inlet opening be positioned at below preferred liquid level, therefore this means that the activity of surface level ripple temporarily can not by mistake cause valve system "ON" and "Off".

Stoped by shell the physical disturbance of float movement as discussed above, flow if fluid control device is connected to pump to help fluid, the "ON" on pump and "Off" action are safeguarded also causing the acceleration of pump to worsen and increase.

Accompanying drawing explanation

Now in order to describe the present invention in more detail, under the assistance of following text and accompanying drawing, preferred implementation is shown.

Fig. 1 is the cross sectional view of fluid flow control device in a preferred embodiment of this invention.

Fig. 2 is the control valve unit of fluid control device in a preferred embodiment of this invention enlarged portion in the closed position.

Fig. 3 is the similar expression in an open position relative to the control valve unit of Fig. 2.

Embodiment

Now in more detail with reference to accompanying drawing, wherein fluid flow control device of the present invention is shown as (10) and it comprises the main cylindrical cavity being called as float chamber cover (14) usually.

Float chamber cover (14) is connected to upper valve body part (31).

Valve body (31) comprises floating year elongated portion (15), and it is at one end threadably installed to valve body and rests around inner dimple (44) in the mode of transversal millet cake (45) and (46) at the shown the other end.

Floating equipment (8) is through along the screw thread (47) of floating slider (18).

Floating slider (18) comprises skirt section or the shoulder (48) of horizontal expansion at its upper end, by the hook (49) of the actuator jaws (16) of actuator jaws joint pin (17) pivotal support to skirt section or shoulder (48), actuator jaws joint pin (17) is supported on floating carrying in elongated portion.

Actuator jaws (16) comprises cam type configuration (50) in the opposite end of hook (49), it contacts with actuator rod and is communicated with, when being raised with convenient actuator jaws (16) according to the fluid inside flotation chamber and reducing, the pivot motion of actuator jaws (16) and the relative motion of floating equipment (8) are by relevant to the motion up and down of actuator rod, the motion triggers up and down of actuator rod is comprised in the valve system in valve body (31), and composition graphs 2 and 3 is hereafter being discussed in detail by this.

Usually, there is entrance (52), wherein fluid is stoped through valve body (31) by means of primary seal (13) and the seal is separated the annular vent trap (53) in valve body (31), and then this cause drain flow path (54) as shown in Figure 1.

The key character obtained from the present invention is the following fact, and namely floating equipment is housed in the inner side of pot device.In a preferred embodiment, floating equipment is screwed onto on floating slider, and wherein this floating slider at one end comprises the skirt section extension part of energy engages actuator pawl.

The fluid level depended on inside fluid volume area that moves up and down of float, fluid control device will be applied to this volume area, and this volume area is as swimming pool, vaporizing type air conditioner, animal groove etc.

As the result of floating equipment, when floating slider moves up and down, it can pull down actuator jaws when fluid level is lowered, and again to pull-up actuator jaws when can be introduced in fluid volume area at fluid and reach required fluid level.

In a preferred embodiment, the reason that valve system is started working is due to the interstructural relation between the cam arrangement in actuator jaws one end and the actuator rod upwards extended, the circular movement of the actuator jaws that pivot between rising and lowering position can rotate by this interstructural relation is converted into the opening and closing of valve system, by the opening and closing of the primary seal (13) that entrance (52) and outflow (54) separate.

Referring now to the actual motion of Fig. 2 and 3 and valve system.

Valve is designed to the fluid level of the setting automatically maintained in volume area, simultaneously not by the impact creating disturbances to circulation and interference.

Liquid level adjustment (when float chamber cover (14) is removed) of valve is provided by mobile float (8), and this mobile float can be screwed on the surface of floating slider (18) along molded thread contour.

Fluid level location sensitive is sent to the actuator jaws (16) be arranged on pivot (17) via floating slider (18), cause actuator rod (10) to be shifted at point of contact place via the cam profile be incorporated in actuator jaws (16).

Actuator rod (10) moves freely in actuator rod pipe (23), actuator rod pipe (23) comprises the working clearance (working clearance), this working clearance allows once poppet seal element (21) by the displacement that moves upward of actuator push rod pin (22), fluid is discharged from valve gap (2), is wherein normally held against on the hole of actuator rod pipe (23) by poppet seal element (21) by poppet resets spring (20).

Due to the reaction of septum assembly Returnning spring (19), valve flows into and occurs in path (55) and run into the valve face being in normal closed position.The metering stream of fluid can via the czermak space between actuator rod pipe (23) and barrier film internal fixtion folder (11) through septum assembly.Such flowing will produce pressure balance between valve gap (2) chamber and inflow stream, cause the closing force on barrier film (6), the area that the surface area of this closing force and barrier film (6) puts valve seat thereon to primary seal (13) is proportional.

When actuator rod pin (22) opens poppet valve and valve gap (2) chamber is drained with the speed being greater than the speed flowing into chamber by actuator rod pipe (23), valve open generation.The step-down in consequent valve gap (2) chamber allows septum assembly to rise and flow through primary seal (13) and enters annular vent trap (53), then along discharge duct (54) to path (59).

Claims (14)

1. adaptation maintains the fluid flow control device of volume area inner fluid to the fluid level of setting, and described device comprises:

Cavity, wherein this cavity outer wall adaptation rests in the fluid that is maintained in volume area at least in part, and wherein this cavity is arranged and is adapted when to be sucked into convenient fluid or to discharge this cavity, the fluid level in described cavity is consistent with the fluid level of described volume area;

Floating equipment, adaptive fluid in described cavity floats, this float between the float lifting position when reaching the fluid level of described setting and when the fluid level of the fluid in described cavity lower than described setting time float lowering position between;

Described floating equipment be communicated with pivotal support arm with the described floating equipment of box lunch when described float lifting position described pivotal support arm in lifting position, and when described floating equipment is at described float lowering position described pivotal support arm at lowering position;

Shut-off valve assembly is carried out to stop fluid from supply entrance effluent warp to the outlet side of described fluid control device thus to enter described volume area in the described pivotal support arm adaptation of described lifting position, and when described pivotal support arm opens described control valve unit to allow fluid from described supply entrance effluent warp to the outlet side of described fluid control device thus to enter in described volume area in described lowering position adaptation.

2. device described in claim 1, wherein said cavity has longitudinal cylindrical body, its at this cylindrical body top with control valve unit.

3. device described in claim 2, wherein said control valve unit comprises the valve body that can be fixed to described cylindrical cavity top.

4. device described in claim 3, wherein said valve body comprises installation supporting element, and guiding elongated portion can be stretched to described installation supporting element from the cylindrical inner length of longitudinal direction along described cavity.

5. device described in claim 4, wherein said guiding elongated portion is columniform and has opening end, on the inside dimple that maybe can rest the cylindrical base portion of the longitudinal direction being positioned at described cavity that this opening end adaptation can be fixed.

6. device described in claim 5, wherein said guiding elongated portion can threadably join described valve body to so that the elongated portion that leads described in mounting point is at one end fixed against described valve body by screw thread mounting point, and at the other end by the described inner dimple that is fixed or rest the cylindrical base portion of the longitudinal direction being positioned at described cavity is fixed.

7. device described in claim 6, comprises the floating slider being fixed to described floating equipment further.

8. device described in claim 7, wherein said floating equipment is generally circular configuration and has the size of the diameter of the cylindrical minimizing of longitudinal direction of described cavity.

9. device described in claim 8, wherein said floating equipment comprises interior threaded hole and described floating slider comprises respective threaded, so that described floating equipment can be screwed on and screw off by described floating slider screw thread the fluid level setting up described setting.

10. device described in claim 9, wherein said floating slider is included in skirt section and/or the shoulder of the horizontal expansion of upper end.

Device described in 11. claims 10, wherein said pivotal support arm is included in the hook-shaped configuration of one end, and the wherein said adaptive skirt section around the horizontal expansion of floating slider of hook-shaped configuration and/or shoulder hook and engage skirt section and/or the shoulder of the horizontal expansion of this floating slider.

Device described in 12. claims 11, wherein said pivotal support arm comprises circular cam configuration in the opposite end of described hook-shaped configuration.

Device described in 13. claims 12, the described circular cam configuration contact engages actuator push rod of wherein said pivotal support arm, the convert rotational motion of wherein said cam arrangement be described actuator rod opening the vertical motion between control valve unit and shut-off valve assembly.

Device described in 14. claims 13, wherein said cavity is included in the entrance of its base portion, and wherein fluid can be drawn into described cavity or can discharge from described cavity.