VALVE ARRANGEMENT

Abstract

A valve arrangement has a valve housing comprising lower and upper housing parts, in which a flow channel with a flow chamber is formed. A blocking device closes the flow channel. The housing parts can rotate relative to each other about a common vertical axis and are detachably connected. At least one transverse end channel section is formed in the lower housing part and extends transversely to the axis of rotation between an opening in the peripheral wall of the lower housing part for the inlet or outlet of fluid and a lower vertical channel section, and/or in the upper housing part a transversely extending end channel section is formed which extends transversely to the axis of rotation between an opening in the circumferential wall of the upper housing part for the inlet or outlet of fluid and an upper vertical channel section.

Claims

1. Valve arrangement having a valve housing (2) in which a flow channel (3) is formed, said flow channel (3) comprising a lower vertical channel section (3a), an upper vertical channel section (3c) and a flow chamber (3b) disposed therebetween, and extending between an opening for inlet or outlet of a fluid (4a, 4b) and a further opening for inlet or outlet of a fluid (5a, 5b) of the valve housing (2), and having a blocking device assigned to the flow chamber (3b) for closing the flow channel (3), said blocking device comprising a valve seat (6) surrounding the flow channel (3) and a valve body (7), which is movable in the valve housing (2) between an open position, in which the valve body (7) is not in contact with the valve seat (6) in order to open the flow channel (3), and a closed position, in which the valve body (7) comes into sealing contact with the valve seat (6), the valve housing (2) having a lower housing part (2a) and an upper housing part (2b) which are rotatable relative to each other about a common vertical axis of rotation (X), wherein the lower housing part (2a) and the upper housing part (2b) are detachably connected to one another in defined relative positions, wherein at least one transversely extending end channel section (3e) is formed in the lower housing part (2a) and extends transversely to the axis of rotation (X) between one opening for inlet or outlet of a fluid (4a) provided in the circumferential wall of the lower housing part (2a) and the lower vertical channel section (3a), and/or wherein a transversely extending end channel section (3f) is formed in the upper housing part (2b) and extends transversely to the axis of rotation (X) between one opening for inlet or outlet of a fluid (5b) provided in the circumferential wall of the upper housing part (2b) and the upper vertical channel section (3c).

2. Valve arrangement according to claim 1, wherein at least one vertical end channel section (3d) of the flow channel (3) is formed in the lower housing part (2a) and extends in the direction of the axis of rotation (X) between one opening for inlet or outlet of a fluid (4b) provided in the bottom wall of the lower housing part (2a) and the lower vertical channel section (3a) or forms an end section thereof, and/or in that a vertical end channel section (3f) is formed in the upper housing part (2b) and extends in the direction of the axis of rotation (X) between one opening for inlet or outlet of a fluid (5a) provided in the upper side of the upper housing part (2b) and the upper vertical channel portion (3c) or forms an end section thereof.

3. Valve arrangement according to claim 1, wherein connection means (11) are assigned to at least one transversely extending end channel section (3e, 3g) and/or vertical end channel section (3d, 3f), via which connection means (11) a connection branch (12) assigned to the respective end channel section (3d, 3e, 3f, 3g) and inserted therein can be detachably connected to the valve housing (2).

4. Valve arrangement according to claim 3, wherein at least one transversely extending and/or vertical end channel section (3d, 3e, 3f, 3g) is provided with an internal thread (11) as connection means, into which a connection branch (12) can be screwed or is screwed.

5. Valve arrangement according to claim 3, wherein at least one opening for inlet or outlet of a fluid (4a, 4b) provided in the lower housing part (2a) and one opening for inlet or outlet of a fluid (5a, 5b) provided in the upper housing part (2b) are provided with a connection branch (12) and each further opening for the inlet or outlet of a fluid present is sealingly closed by a cover (13) which is inserted into the respective opening for inlet or outlet of a fluid and is detachably connected via the connection means to the valve housing (2), in particular screwed into the respective end channel section (3d, 3e, 3f, 3g).

6. Valve arrangement according to claim 5, wherein connection branches (12) and/or covers (13) inserted into the openings for inlet or outlet of a fluid (4a, 4b, 5a, 5b) are secured against rotation about an axis of the end channel section to which they are respectively assigned.

7. Valve arrangement according to claim 6, wherein the connection branches (12) and/or the covers (13) are secured by securing means (16), which can be detachably fastened, in particular screwed to the valve housing (2), the securing means (16) on the one hand and the connecting branches (12) and/or the covers (13) on the other hand being designed in such a way that they engage in a force-fitting manner and/or in a form-fitting manner in order to prevent rotation.

8. Valve arrangement according to claim 7, wherein a respective flattening (17) in the circumferential wall is assigned to each of the openings for inlet or outlet of a fluid (4a, 5b) provided in the circumferential wall of the valve housing, a radial projection or collar of the connection branch/cover (12, 13) inserted into the respective opening for inlet or outlet of a fluid coming into flat contact against said respective flattening (17).

9. Valve arrangement according to claim 1, wherein the upper housing part (2b) and the lower housing part (2a) are centered with respect to one another.

10. Valve arrangement according to claim 9, wherein the lower housing part (2a) has a centering collar (8) and the upper housing part (2b) has a centering recess (9) corresponding thereto, the lower housing part (2a) has a plurality of radial blind holes (19) in the region of the centering collar (8), the upper housing part (2b) has radial through-openings corresponding to the blind holes (19) in the region of the centering recess (9), and securing elements are provided which extend over the through-openings of the upper housing part (2b) and the blind holes (19) of the lower housing part (2a) and thus prevent the two housing parts (2a, 2b) from rotating relative to one another in a force-fitting and/or form-fitting manner.

11. Valve arrangement according to claim 10, wherein the blind holes (19) formed in the region of the centering collar (8) of the lower housing part (2a) have an internal thread and the securing elements are formed as fixing screws (10).

12. Valve arrangement according to claim 1, wherein the valve seat (6) is formed in the upper housing part (2a).

13. Valve arrangement according to claim 1, wherein the valve body (7) is formed as a ball.

14. Valve arrangement according to claim 1, wherein the housing parts (2a, 2b) and the valve body (7) essentially consist of non-metallic materials, in particular ceramics and/or plastics.

15. Use of a valve arrangement according to claim 1 as a check valve, wherein the openings for inlet or outlet of a fluid (4a, 4b) formed in the lower housing part (2a) serve as outlet openings and the openings for inlet or outlet of a fluid (5a, 5b) formed in the upper housing part (2b) serve as inlet openings.

16. Use of the valve arrangement according to claim 1 as a venting valve, wherein at least one of the openings for inlet or outlet of a fluid (4a, 4b) formed in the lower housing part (2a) serves as an inlet opening for a fluid and the openings for inlet or outlet of a fluid (5a, 5b) formed in the upper housing part (2b) serve as outlet openings for a fluid.

17. Method for configuring a valve arrangement according to claim 1, comprising the steps below: Connecting the connection branch (12) and/or cover (13) to the end channel sections (3d, 3e) of the lower housing part (2a); Connecting the connection branch (12) and/or cover (13) to the end channel sections (3f, 3g) of the upper housing part (2b); securing the connection branches (12) and/or covers (13) against unintentional loosening by means of the securing means (16); and Turning the lower housing part (2a) relative to the upper housing part (2b) into the relative position to one another intended for operation, and fixing the two housing parts to one another by means of the securing elements.

Description

[0028] With regard to further advantages embodiments of the invention, reference is made to the subclaims as well as to the following description of an embodiment with reference to the enclosed drawing. The drawing shows

[0029] FIG. 1 a valve arrangement according to the present invention in a perspective view,

[0030] FIG. 2 the valve arrangement from FIG. 1 in a plan view,

[0031] FIG. 3 the valve arrangement in closed position in a longitudinal sectional view,

[0032] FIG. 4 the arrangement from FIG. 3 with the valve in open state,

[0033] FIG. 5 the valve arrangement in a second application version in a perspective view,

[0034] FIG. 6 the valve arrangement from FIG. 5 in a plan view,

[0035] FIG. 7 the valve arrangement from FIG. 5 in closed state in a longitudinal sectional view,

[0036] FIG. 8 the longitudinal sectional view form FIG. 7 with the valve in open state,

[0037] FIG. 9 the valve arrangement in a third application version in a perspective view,

[0038] FIG. 10 the valve arrangement from FIG. 9 in a plan view,

[0039] FIG. 11 the valve arrangement from FIG. 9 in closed state in a longitudinal sectional view,

[0040] FIG. 12 the longitudinal sectional view from FIG. 11 with the valve in open state,

[0041] FIG. 13 the valve arrangement in a force application version in a perspective view,

[0042] FIG. 14 the valve arrangement from FIG. 13 in a plan view,

[0043] FIG. 15 the valve arrangement from FIG. 13 in closed state in a longitudinal sectional view,

[0044] FIG. 16 the longitudinal sectional view from FIG. 15 with the valve in open state,

[0045] FIG. 17 the valve arrangement in a fifth application version in a perspective view,

[0046] FIG. 18 the valve arrangement from FIG. 17 in a plan view,

[0047] FIG. 19 the valve arrangement from FIG. 17 in closed state in a longitudinal sectional view,

[0048] FIG. 20 the longitudinal sectional view from FIG. 19 with the valve in open state,

[0049] FIG. 21 the valve arrangement in a sixth application version in a perspective view,

[0050] FIG. 22 the valve arrangement from FIG. 21 in a plan view,

[0051] FIG. 23 the valve arrangement from FIG. 21 in closed state in a longitudinal sectional view,

[0052] FIG. 24 the longitudinal sectional view from FIG. 23 with the valve in open state,

[0053] FIG. 25 the valve arrangement in a seventh application version in a perspective view,

[0054] FIG. 26 the valve arrangement from FIG. 25 in a plan view,

[0055] FIG. 27 the valve arrangement from FIG. 25 in the closed state in a longitudinal sectional view,

[0056] FIG. 28 the longitudinal sectional view from FIG. 27 with the valve in open state, and

[0057] FIG. 29 a detailed sectional view of the housing parts in the region of the centering collar.

[0058] The drawing shows a valve arrangement 1 according to the present invention, which can be installed vertically in the pipeline of a low-pressure water system, for example, in the manner shown. The valve arrangement can be used as a check valve, with the flow direction from top to bottom. Alternatively, the valve arrangement can be used as a venting valve, whereby the flow direction is reversed. The valve arrangement 1 has a valve housing 2, which is substantially formed by a lower housing part 2a and an upper housing part 2b. A flow channel 3 is formed in the valve housing 2 and extends in a substantially vertical direction between an opening for inlet or outlet of a fluid 4a, 4b at the lower housing part 2a and an opening for inlet or outlet of a fluid 5a, 5b at the upper housing part 2b.

[0059] The flow channel 3 comprises a lower vertical channel section 3a provided in the lower housing part 2a, followed by an equally vertical flow chamber 3b, which has a considerably larger diameter than the lower vertical channel section 3a and is formed between the housing parts 2a, 2b. Furthermore, the flow channel 3 comprises an upper vertical channel section 3c which is connected to the flow chamber 3b at the top. The vertical channel sections 3a, 3c and the flow chamber 3b are arranged concentrically to each other.

[0060] In the transition region between the upper vertical channel section 3c and the flow chamber 3b, a valve seat 6 is formed in the upper housing part 2a surrounding the upper vertical channel section 3a. In the flow chamber 3b, a valve body 7 is provided in the form of a ball made of a floatable material, for example a plastic or a ceramic, the valve body 7 being movable in the vertical direction between a lower open position and an upper closed position, in which the valve body comes into sealing contact with the valve seat 6.

[0061] The lower vertical channel section 3a, the flow chamber 3b and the upper vertical channel section 3c of the valve housing 2 define a vertical longitudinal axis X with respect to which the two housing parts 2a, 2b are centered. Therefore, a centering collar 8 is provided on the lower housing part 2a and a corresponding centering recess 9 is provided on the upper housing part 2b in such a way that the two housing parts 2a, 2b can be plugged together axially, the upper housing part 2b embracing the lower housing part 2a in the plugged state. In the axial overlap region, the two housing parts 2a, 2b are screwed together. Several fixing screws 10 are provided for this purpose. These penetrate through-openings that are provided in the upper housing part 2b with a uniform offset to each other, and are screwed into corresponding threaded holes located in the centering collar of the lower housing part 2a. The arrangement is such that the housing parts 2a, 2b can be turned against each other after loosening the fixing screws 10 about the longitudinal axis X and can be reconnected in the turned relative position.

[0062] The gap between the housing parts 2a, 2b is sealed by a sealing element 18.

[0063] As it can be clearly seen in the figures, the lower housing part 2a has in total two openings for inlet or outlet of a fluid 4a, 4b, and in the same way the upper housing part 2b has in total two openings for inlet or outlet of a fluid 5a, 5b. The arrangement is such that one opening 4b in the underside of the lower housing part 2a is arranged concentrically to the longitudinal or rotational axis X and thus concentrically aligned to the lower vertical channel section 3a and is connected to this via a vertical end channel section 3d concentrically with the longitudinal axis. The further opening 4a is provided in the circumferential wall of the lower housing part 2a and connected to the lower vertical channel section 3a via a transversely extending end channel section 3e, which extends transversely to the longitudinal axis X. In the embodiment shown, the axis Y of the end channel section 3e extends in the radial direction.

[0064] In the same way, an opening for inlet or outlet of a fluid 5a is formed concentrically to the longitudinal axis X in the upper side of the upper housing part 2b and is connected to this via a vertical end channel section 3f concentrically to the longitudinal axis X. The further opening for inlet or outlet of a fluid 5b is formed in the circumferential wall of the upper housing part and is connected to the upper vertical channel section 3c via a transversely extending end channel section 3g which extends transversely to the longitudinal axis X. In concrete terms, the axis Y of the end channel section 3g runs in a radial direction.

[0065] All end channel sections 3d, 3e and end channel sections 3f, 3g are provided with an internal thread 11, so that optionally a connection branch 12 or a cover 13 for closing the respective opening for inlet or outlet of a fluid 4a, 4b; 5a, 5b, which are provided with a corresponding external thread 14, can be screwed into the end channel sections 3d, 3e, 3f, 3g. The annular gaps formed between the valve housing and the components 12, 13 screwed-in are sealed by sealing rings 15 which are pushed onto the external threads 14.

[0066] The fact that the lower housing part 2a and the upper housing part 2b each have a plurality of openings for inlet or outlet of a fluid 4a, 4b; 5a, 5b and corresponding end channel sections 3d, 3e and end channel sections 3f, 3g, respectively, and, in addition, the lower housing part 2a and the upper housing part 2b are rotatable relative to one another about the vertical longitudinal axis X results in different versions of application which are shown in the figures.

[0067] FIGS. 1 to 4 show a first application version in which the bottom opening 4b is closed by a cover 13 and a connection branch 12 is screwed into opening 4a of the circumferential wall. On the other hand, a connection branch is screwed into opening 5a on the upper side of the upper housing part 2b and the further lateral opening 5b is closed by a cover 13.

[0068] In the second application version shown in FIGS. 5 to 8, the arrangement is reversed. A connection branch 12 is screwed into the bottom opening 4b, whereas the lateral opening 4a is closed by a cover 13. On the other hand, the opening 5a of the upper side of the upper housing part 2b is closed by a cover 14 and a connection branch 12 is fitted to the lateral opening.

[0069] In the third application version shown in FIGS. 9 to 12, a lateral opening 4a and the lateral opening 5b are closed by a cover 13 and the connection branches 12 are attached to the other openings 4b and 5a.

[0070] In contrast, the fourth application version shown in FIGS. 13 to 16, connection branches 12 are attached to the lateral openings 4a, 5b, whereas openings 5a, 4b are closed at the top and bottom of the housing by covers 13. The lower housing part 2a and the upper housing part 2b are aligned in such a way that the connection branches are turned 90 to each other. FIGS. 17 to 20 show that same arrangement, except that in this fifth application version the housing parts 2a, 2b are aligned in such a way that the connection branches 12 are twisted 180 against each other, i.e. pointing away from each other.

[0071] The sixth application version shown in FIGS. 21 to 24 corresponds to the fourth application version with the proviso that the connection branches 12 are turned 90 in the opposite direction.

[0072] In the seventh application version shown in FIGS. 25 to 28, the housing parts 2a, 2b are finally aligned in such a way that the connection branches 12 provided at the lateral openings 4a, 5b point in the same direction.

[0073] As can be seen in the drawing, measures have been taken to prevent the connection branch 12 from twisting about it axis X. For this purpose, securing plates 16 are provided, which are screwed to the valve housing 2 and interact in a form-fitting manner with a flattening on a radial collar 12a of the connection branches 12, with which the connection branches 12 come into contact on the outside of the valve housing 2, in order to prevent twisting of the connection branches. Finally, flattenings 17 are assigned to the openings for inlet or outlet of a fluid 5b, 4a in the circumferential wall of the valve housing 2, the radial collars 12a of the connection branches 12 and the covers 13 coming into flat contact with the flattenings 17.

[0074] FIG. 29 shows the securing of the two housing parts against twisting. The lower housing part 2a contains threaded blind holes 19 in the area of the centering collar 8, to which through-openings are correspondingly arranged in the upper housing part 2b, and into which fixing screws 10 can be screwed to prevent the housing parts 2a, 2b from turning relative to each other by means of a form-fitting and/or a force-fitting securing.