DE2125237C3 - Shut-off valve, especially for regulating the liquid level in a liquid basin - Google Patents

Description

the side facing the closure part of the 15
The membrane is located and can be acted upon by the operating pressure, and with one the relief

effecting the membrane, in particular The invention relates to a shut-off valve, in particular float-controlled Auxiliary valve, the outside of which is used to regulate the liquid level in an inlet side connected to the liquid outlet 20 liquid basin, according to the generic term of Anist, characterized in that claim 1.

Locking device! It is known that the closing of a flushing valve is arranged in such a way that it is formed by the operating part of the same by a membrane, pressure being applied in the opening direction so that this and the associated valve seat are at the inlet The inlet side of the auxiliary valve (28 to 30) with the »5 passage side of a through chamber. The diaphragm which is connected to the first auxiliary chamber (23) is provided with a narrow cross-passage while the second auxiliary chamber is cut from liquid, through which the pending line is free and so that the cross-section of one of the pressure can constantly get into an auxiliary chamber, through-chamber (13 ) to the first auxiliary chamber which is also smaller on its lower side by the same (23) leading supply line (24) than the membrane is limited. On the upper side of the cross section of the passage chamber from the first auxiliary chamber (23) is the valve seat of the auxiliary valve (28 to 30) leading to the auxiliary fluid valve.
outlet (12) leading line (27). This embodiment has the disadvantage that

2. Valve according to claim 1, characterized in that the liquid inlet and the liquid outlet only draws that the membrane (19) can be arranged on the first 35 so that the latter is immediately next to Auxiliary chamber (23) facing away from the side on one of the liquid inlet in the same wall of the vender Rod (18) attached disc (21) rests, tilgehäuses must lie so that a deflection of the which has a larger area than the liquid flowing through it by 180 ° cross section at the liquid outlet (12). is. This results in high flow losses,

3. Valve according to claim !, characterized thereby, 40 during the largest possible passage cross-section indicates that the first auxiliary chamber (23) is small from that that the valve does not allow the passage of Db'chgangskammer (13) by means of a separator is suitable for larger amounts of liquid. The opening wall (15) is divided, the one annular gap (24) degree of the closing part is always from the rest of the has through which the rod (18) passes. Dependent on the size of the pressure at the liquid inlet.

4. Valve according to claim 3, characterized in 45 Darübei also requires this valve a behaved, that this annular gap (24) as a supply line nism moderately large construction space.

serves for the first auxiliary chamber (23). Another valve has the closing part and

5. A valve according to any one of claims 1 to 4, the valve seat on the outlet side of the passage therethrough characterized in that the second auxiliary chamber is arranged. The locking part is on one Chamber attached to the valve housing (10) 50 end of a spindle, at the other end attached cover (22) is covered, one of which is sealed against a cylinder wall Has ventilation opening (26). Piston is arranged. The assigned to the locking part

6. Valve according to one of claims 1 to 5, the side of this piston turned by the operating pressure characterized in that the liquid is applied while on the opposite outlet (12) leading line (27) from which an auxiliary chamber is located on the piston side. This is first auxiliary chamber (23) from initially in an axial direction, via an auxiliary valve with the passage chamber bindable in the radial direction through the partition. Since to open this valve the closing (15) is guided and lifted in a radial Rieh- part in the outflow direction from the valve seat device extending auxiliary valve chamber (28) opens, a part of the required closing, in which the closure part (30) and the valve pressure 60 due to the pressurization of the piston seat (29) of the auxiliary valve are arranged. apply area from the passage chamber,

7. Valve according to claim 6, characterized in that the piston cross-section is larger indicates that the central axis of the closure part is greater than the cross section of the valve seat. This one (30) of the auxiliary valve in the radial direction and the ko-closing force is still relatively low, axially to that in the auxiliary valve chamber (28) it is necessary to end an additional closing spring Line (27) is arranged to bring the closing part constantly in the sense of a The mouth of the valve seat (29) of the auxiliary valve is acted upon by closing movement. To open the venge formed is. tils, the auxiliary valve is opened so that the loading

operating pressure is also present in the auxiliary chamber and that acting from the passage chamber Compensated for pressure. The flow pressure is then sufficient to counteract the action of the closing part Spring force to open.

In this embodiment, it is disadvantageous that

the use of a recoil spring is required,

"because springs of this type often give rise to

The disturbances are «» at _night

J «ftnebes located ^ ^ _{

^ _r ^^ _m ^dIC _the already considered

. " _{F% 1} , - _n y _we ; ter enlarged,
little effort ™> £ ™ | _{Invent the be}

ίί Cons "Ruktion a check valve be. ^ g J ™ ° _Sch i _ie ßfeder not" for-

the spring force decreases with aging. It is also disadvantageous that the supply of the compensation pressure to the auxiliary comb. via a line outside the valve housing

Another known valve is the Ventilsiiz and the closure part is arranged on the entrance side of the passage chamber. Em to the passage chamber adjoining and cushioned by this Space is created by a membrane with two auxiliary chambers divided. A rod-shaped spindle connecting the valve seat and the diaphragm is as Executed hollow spindle, so that it touches the closed end or at the entrance of the through-hole hcnde operating pressure can go through the spindle or rod into that auxiliary chamber which is arranged on the side of the membrane facing away from the closure part and from which also d, e supply line goes off to the auxiliary valve.

This embodiment has the disadvantage that the effort required for production by the: i de? Spindle is enlarged as a high spindle. The effort required to guide them and to seal them is also relatively large. Another disadvantage arises from the large amount of space required for this valve separate and ^{behaved measure long line 1} SSi further known embodiment for

.O

a ₅ Skr

That is, g ^ ^e g " ⁵⁶¹ J _task are inventive ^^^ eSnungste« of claim 1 ge> ₅ wet the ^ ™ ^ beat.

named Dimension ™ * ^ «^ _{ür ^ _AbsperrV ent.I has

numerous Wei ^ a D «*« ™ of to -

^^^ not ichtung their leadership _more the rod _{can be} virtually rei. _A , _ic h is overall the for t ^ w ^^ _being , i, _{ch ge}

1 « _Storage event.i required

h ^B g | _small construction space. ; _it ^g _except Venül-

^ J ¹ any surfaces which one particularly scarcely suffices _{or those after the}

"A EIGE £ ^ VrTtellung of the individual parts" ™ _tw f make _constantly J "^^. As a result of

2 "' ^ens _d ^g _info , _{e of the} fact that verhaltnisma_ o £ J]" ^un J ™haben | _{chen erfor} are sary, is Big _"icherne it makes little Since u.cnin." the encryption

" ⁿ 8" ·

30 sch ™ ^te ^ ^m "j _{bt further the} advantage that the beat w rd, it provides sealing neces-

for ^ E z.elung eme «closure part so

agile. 8 _{can be conical}

is omt ^ J «any filing

Dense flat ^ always clean ^ .1 ^ ^ ^ rungs on de en t ^ _d

rnung ™ ^ ™ ^sen _locking valve? il _s a favorable arrangement ^^ ^^ ^ _{this form the}

we ^ igr Verwirbe.ung.m

is a piston is mounted, the above one _{of the} operating pressure of the eigent- ° _failure ^e

Operating pressure for opening the valve lifted once the facing away from the valve seat _ne overall _the help of a pressure ™ _{an eve} ntuell sucked

the, whereby this dimensional accuracy is not only the manufacturing process: vand increased, but also vernaltn.sma-

Part side view with which the Ab-Fig. 2 e.ne

shut-off valve and the float connecting device. This is intended to ensure that the actuation of the pole. Globe valve not already at minor

The shut-off valve has a valve housing 10 which changes the water level in the area of a liquid inlet 11 and a liquid float, that is to say, for example, does not show changes through the shaft outlet 12. Between these there is 5 impact that can be caused
a through chamber 13, at the outlet side of which the operation of this valve is as follows:

A valve seat 14 is formed at the end. On which the- It is to be assumed that by the

At the opposite end, the through float 36 is a sufficiently high water level chamber 13 bounded by a partition 15. That is indicated and that therefore the shut-off valve Valve seat 14 cooperates with a closing part 16 which is in its closed position. Where d; is men, which consists of a sealing ring 16 a and one through the closure part 30 and the valve seat 29 ge plate 16 ö consists and closed by means of a threaded nut formed auxiliary valve, so that the in you 17 is attached to a rod 18. The latter through-through chamber 13 prevailing pressure over the sets the passage chamber 13 and the partition wall annular gap 24 can act on the membrane 19 15 and carries at its other end an elastic 15 and the pressure prevailing in the hip chamber 23 Membrane 19, which is not dismantled by means of a further thread. Since the mother through the disc 21 20 and a disk 21 on the rod 17 a certain surface part of the membrane 19, which is used to hold the force and which can be used for transmission to the rod 18 by means of a housing cover 22, is larger is covered and attached to the valve housing 10. This is called the flow cross section in the area of the ven disk 21 has a larger area than the transverse valve seat 14, the shut-off valve is in its closing section held in the area of the valve seat 14th position.

Between the membranes 19 and the partition Wtnn via the float 36 a sinking Wiis-

15, a hip chamber 23, which is displayed via a stand, and the float arm 35 are formed between the partition 15 and the rod 18 is lowered so far that the upper end of the elongated hole Annular gap 24 which rests against the screw 37 in the through-chamber 13 »5 slot 38 and the air prevailing Liquid pressure is supplied. The one that is taken at 34 is followed by a rotation of the between the membrane 19 and the housing cover axis 33 and the closure part 30 in the thread 22 formed space 25 stands over a vent 31, the valve seat 29 is released and the tion 26 in connection with the free atmosphere. fluid pressure in the hip chamber 23

A line 27 leads from the auxiliary chamber 23 via the line 27 to the liquid outlet 12 next in the axial and then in the radial direction to degrade. This will go through the so far a valve chamber 28, from which the line extends the membrane 19 achieved compensation effect 27 again in the axial direction up to the liquid, so that the in the through-chamber keitsauslaß 12 continues. The flow pressure present at the mouth of the line 13 closes the valve 16 ment 27 is in the valve chamber 28 a valve seat 29 35 can open and the through valve for a Na: home-made, which, together with a closure part 30, is released from water. Thus the increases menacts and with this forms the auxiliary valve. The water level, and once this the required Closure part 30 is with the valve housing 10 above height is above the float 36 and a thread 31 is connected, which is designed so that the float arm 35 of the lever 34 in Gegencnrichdaß it is self-locking and has a slope, actuated with 40 device, so that the closure part 30 on again a sufficient adjustment of the closure part of the valve seat 29 comes to rest in a sealing manner. 30 can be achieved in its axial direction. Now you can enter the hip chamber 23 again Build up between the valve housing 10 and the closure compensation pressure, and as soon as in the Part 30 is the Ventükammei 28 with a ring seal hip chamber 23 in the passage chamber 13 device 32 sealed. 45 is present, the rod 18

The closure part 30 has lifted one out of the valve so that the closure part 16 is in its housing 10 protruding axis 33 to which a lever is brought to the closed position and the water supply 34 is rotatably attached. The latter is stopped at its an- ning.

whose end is connected to a float arm 35. The shut-off valve designed according to the invention

(Fig. 2), which in turn with a float 36 in 50 is not only for controlling a water stick Connection. The lever 34 and the float des applicable, but it can be as a result of his arm 35 are about a screw 37 and a long-simple design and reliable work Lochschlitz 38 connected to each other, specifically so, use wise very versatile. The controls came that the screw 37 within the slot not only by a float, but also ii 38 is freely movable and the lever 34 only with 55 other dependencies such as z. B. by one. tax is taken when the screw 37 takes place at one end of the motor, which verbun with the closing part 30 of the slot 38 comes to a stop. that is.

1 sheet of drawings

Claims (1)

8. Valve according to claim 7, characterized in that the closure part (30) of the auxiliary valve opposite the valve housing (10) in one 1. Shut-off valve, in particular for regulating thread (31) is mounted and that the axial Verdes Liquid level in a liquid reservoir 5 position of the closure part (30) by turning ken, with a passage chamber into which one takes place. Liquid inlet and a liquid outlet 9. Valve according to claims, characterized in that open, with one of the axially movable marks that the closure part (30) of the auxiliary valve Rod fastened closure part and a valve a protruding from the valve housing (10) tilsitz and having a shaft (33) on which the closure part ίο lowing, on which a with a opposite end of the rod attached float (36) connected rod (34, 35) Membrane that attacks one of the passage chamber, partitioned off room into a ** first and a second Subdivided auxiliary chamber, the first of which is on