DE20317426U1 - Valve block comprises identical square cross section modular bodies with valves to control connections between pressure and sensor lines - Google Patents

Abstract

A valve block (1) comprises identical square cross section modular bodies (2) fixed (4) as a multiple valve block with valves (6) to control connections between pressure (3) and sensor (5) lines and through holes providing pressure connection throughout the block.

Description

The invention relates to a valve block according to the preamble of the attached Claim 1 and a pressure measuring station provided with it.

Such valve blocks are available on the market. They are used to measure different pressures of a machine, a vehicle, an industrial plant or similar objects at a central Measuring station accessible close. The valve block is located at the central measuring station. At least a pressure line that carries a pressure to be measured connected to him. Next are pressure sensors or the like pressure Monitors connected to the valve block. Through the valve block is pro pressure monitor or a closed area with at least one for each pressure to be measured provided a valve. The valve is between the pressure line and arranges the pressure measuring device and serves the pressure measuring device to depressurize. The valve is only used for pressure measurement open, can otherwise be locked. This will put the strain on the pressure measuring device was kept low. Depending on whether only one Pressure measuring device or several pressure measuring devices connected So far, special valve blocks with one, two or more are to be second connection devices for the pressure gauges used.

The object of the invention is a Valve block of the type mentioned can be used in a variety of ways shape. The production should also be simplified and significantly cost-effective his.

This object is achieved by a valve block according to claim 1 or 2 solved.

Advantageous embodiments of the Invention are the subject of the dependent claims. One with the valve block according to the invention provided pressure measuring station is the subject of the further independent claim.

With the solution according to claim 1 is a modular design from several basic bodies formed multiple valve block, with which several pressure lines to a pressure measuring device and / or several pressure measuring devices lockable to a pressure line can be connected. With the solution According to claim 2 pressure lines or other connections are selectable different sides can be connected.

They are each advantageous identical basic body, which are combined in a modular design to form a multiple valve block can be each provided with a through channel. Are the through channels of adjacent base bodies in each case connected to each other, you can create a through line through the entire multiple valve block. One connected to a base body Pressure can then be distributed through the entire multiple valve block and on every body be detected by an appropriate pressure measuring device. For example to a pressure line a pressure transducer or measuring sensor and several pressure switches be connected.

The basic bodies themselves also form their passage channel the respective fluid connection to the neighboring Body. In this way, any number of basic bodies can be placed side by side are attached, all with the same pressure connected to one of the base bodies are available. In this way, one can Pressure line valve-controlled any number of pressure measuring devices connect.

Such a valve block is preferred at a central pressure measuring station, for example in a control cabinet accommodated. Areas of application include industrial plants, Power plants, vehicles, ships or machines such as excavators, cranes, manufacturing machines etc.

For example, with the multiple valve block according to the invention a lubricating oil circuit at the same time with two pressure switches responding to different values and can be connected to a pressure transmitter.

One with one or more the valve blocks according to the invention provided Pressure measuring station can all for monitoring one Device interesting pressures be summarized. For example, at a measuring station on different valve blocks or individual separate sections of a multiple valve block the pressure of a lubricating oil circuit, several cooling water circuits, one fuel pressure, etc. measured or for switching operations be used. The pressure measuring station, for example, is only closed audit purposes used, with the valves closed in normal operation (without test) are. When the valve is closed, it can also be used during operation the individual pressure gauges remove or replace for maintenance, repair or the like.

Through a valve at the pressure inlet you can separate the measuring unit from the pressure to be measured. The "depressurization" of the measuring unit is for that advantageous, units connected to the basic block or blocks, for example a transmitter or switch or a control device, in general to test their function.

For example, with a reference print, too a reference value is to be output, for example "0 bar" should be output at "0 bar" at the device output On the other hand, could with a separately to be connected Pressure line a function test that is not conditional is coupled to a constant high pressure volume of the machine.

For the construction of the valve, it is advantageous if this is a shut-off part with a shut-off surface has, which lies on a portion of a cylinder jacket of a vertical circular cylinder. Pressure-guiding regions can then be formed by recesses that extend axially and / or in the circumferential direction and recess in the radial direction. An annular recess for receiving a sealing ring can be provided on the circumference of the cylindrical jacket-shaped shut-off surface. Such training is characterized by a particularly simple assembly and disassembly option, a simple structure and a simple method of manufacture. The receiving opening for such a part can simply be formed by a circular-cylindrical through hole in the base body, to which the pressure lines to be blocked or connected in the base body extend radially. By rotating the shut-off part inserted into this bore, the mouths of these pressure lines can be shut off by means of the sealing ring or brought into communication with a bulge of the radially recessed recess, in order to connect different pressure lines to one another.

Safe positioning of the shut-off part can by a larger diameter base at one of the ends of the shut-off part and a correspondingly larger one Recess at a corresponding end of the cylinder bore in the body can be achieved. Preferably at the other end of the shut-off part there is a detection device such as a Square, on which a hand gag, a handle or the like handling device form-fitting can be attached to twist the shut-off part.

Embodiments of the invention are explained below with reference to the accompanying drawing. In this shows:

1 a perspective view from the front, from the left and from above of a multiple valve block constructed from several basic bodies in modular construction;

2 a perspective view from the front, from the right and from below of a base body;

3a a left side view of a base body in use as a block of 1 with side connection;

3b a front view of the base body in use as a block of 1 with side connection;

4a a left side view of a base body in use as a block of 1 for media connection;

4b a front view of the base body in use as a block of 1 for media connection;

5a a side view of a base body in use in a multiple valve block as a connection block for media connection;

5b a front view of the base body in use in a multiple valve block as a connection block for media connection;

6a a side view of a base body in use as a middle connecting block (intermediate block) in a multiple valve block;

6b a front view of the base body in use as a middle connecting block in a multiple valve block;

7a a side view of a base body in use as an end-connecting block (end block) in a multi-valve block;

7b a front view of the base body in use as an end-connecting block in a multi-valve block;

8th an exploded perspective view from behind, above and right of the in 3a and 3b shown basic body in use as a block of 1 with side connection;

9 an exploded perspective view from behind, above and right of the in 4a and 4b shown basic body in use as a block of 1 for media connection;

10 an exploded perspective view of the in 5a and 5b shown basic body in use in a multiple valve block as a connection block for media connection;

11 an exploded perspective view of the in 6a and 6b shown basic body in use as a middle connecting block in a multiple valve block;

12 an exploded perspective view of the in 7a and 7b shown basic body in use as a terminal block at one end in a multiple valve block;

13 an exploded perspective view of the in 1 multiple valve blocks shown in modular design;

14 another exploded perspective view of the in 1 multiple valve blocks shown in modular design;

15 another perspective view of the multiple valve block of 1 ;

16 a side view of a shut-off element of a valve for use in a further embodiment of a base body, which is suitable for building a multi-valve block in a modular design;

17 a front view of the further embodiment of the base body for receiving the shut-off according to 16 ; and

18 a side view of the body of 17 ,

1 shows a modular multiple valve block 1 , which consists of a total of four basic bodies 2 is assembled in a modular design. It shows the four basic bodies 2 , a first connection device 3 , which serves the media connection by connecting a pressure line leading to the medium, a Be fastening device 4 that the basic body 2 connects, a second connection device 5 on every body 2 for connecting a pressure measuring device (not shown) and a lockable valve for each body 6 on. The basic body 2 are shown in the drawing for clarity. Through the standardized basic body 2 is the multiple valve block 1 structured flexibly.

The basic body 2 are constructed identically in the example shown here. 2 shows one of these standard bodies 2 , Any basic body 2 can be used and set for the following five different purposes:

• - 1er block side connection (shown in 3a . 3b and 8th )
• - 1er block media connection (shown in 4a . 4b and 9 )
• - Connection block media connection (shown in 5a . 5b and 10 )
• - connecting block (intermediate block) multiple (shown in 6a . 6b and 11 ) and
• - Connection block termination (shown in 7a . 7b and 12 ).

The structure of the basic body 2 is based on the 2 explained in more detail. On the front side 10 has the main body 2 a hole 12 with a larger diameter, which is used to hold a connection nipple 8th (please refer 1 ) of the first connection device 3 and to hold shut-off devices 9 of the valve 6 serves. From the larger hole 12 goes a first fluid connection system 14 and a second fluid connection system 15 from. The first fluid connection system 14 has one from the hole 12 to the bottom 16 of the basic body 2 leading fluid channel 17 and one communicating with this from the left 20 to the right 19 continuous through channel 18 , Thus, the first fluid connection system connects 14 the hole 12 with a first mouth opening 21 at the bottom, a second mouth opening 22 on the right side 19 and a third mouth opening on the left side 20 , A part 29 of the fluid channel 17 also leads to the front 10 and ends in a fourth mouth opening 30 ,

The first fluid connection system 14 is through that in the hole 12 shut-off device used 9 opposite one at the hole 12 attached connection nipple 8th and opposite the second fluid connection system 15 lockable.

The second fluid connection system 15 has a channel 24 making the hole 12 with the one on the back 25 arranged second connection device 5 connects that as the mouth of the canal 24 is trained.

Both the connection nipple 8th as well as the first to fourth mouth openings 21 - 23 . 30 can be used to introduce pressurized medium into the body 2 are used, i.e. part of the first connection device 3 form. Depending on the purpose of the body 2 can the mouth openings 21 . 22 . 23 and 30 through plug elements 31 (please refer 1 ) be sealed fluid-tight and pressure-tight.

The base body also has two from the top 26 to the bottom 16 consistently leading vertical channels 26 on.

As part of the fastener 4 are in the area of each corner of the cuboid base 2 vertical through holes 27 provided that at the top 26 and at the bottom 16 in each case also to the sides 19 and 20 open recesses 28 end up.

The following is based on the 3a . 3b and 8th the formation and function of a basic body 2 to form a single valve block with side connection explained.

How out 8th three of the four orifices can be seen as the medium connection for setting a side connection 21 . 22 . 23 . 30 of the first fluid connection system 14 with the plug elements 31 locked. Even the hole 12 after or with the insertion of the shut-off device 9 of the valve 6 with an end screw 32 locked. The shut-off device 9 of the valve 6 can by a square element 33 be operated.

At the in 8th The example shown is the medium at the first mouth opening 21 connected while the second to fourth mouth openings 22 . 23 . 30 through the plug elements 31 be closed. The basic block 2 is designed for a so-called "PICO" medium connection as a side connection. That of the base body 2 The 20 mm hole pattern provided corresponds to the PICO standard M5 × 45 mm. This makes the single valve block suitable for retrofitting to existing PICO applications. Due to the modular design, it can also be expanded several times.

The following is based on the 4a . 4b and 9 the equipment of the basic body 2 to form a 1-way valve block with medium connection explained. For this, the first fluid connection system 14 by two in the fluid channel 17 , more precisely in one from the front 10 towards the back 20 leading section 29 of the Fludican channel 17 , plug elements to be inserted 31 closed. Instead of the end screw 32 becomes the connection nipple 8th in the hole 12 screwed. With the valve 6 can be attached to the connection nipple 8th connected medium-carrying pressure line (not shown) with the second fluid connection system 15 and thus with the second connection device 5 connect. As a connection nipple 8th a screw-in adapter G1 / 4 "can be used. Optionally, a media connection with additional connection threads is possible.

The following is the equipment of the main body 2 to form a multiple to connection block 35 , which is used to connect the medium to one of several basic bodies 2 formed multiple valve block 1 serves, based on the representation in the 5a . 5b and 10 explained. Here again is the connection nipple 8th (e.g. G1 / 4 media connection) into the hole 12 screwed. The mouth openings 30 and 21 on the front side 10 and the bottom 16 are by plug elements 31 locked. If the multiple connection block 35 at one end of a multiple valve block 1 to be arranged is also one of the side openings 22 . 23 , here the second mouth opening 22 on the right side 19 , through a plug element 31 clogged. The medium can then be shut off via the valve 6 into the first fluid connection system 14 and can be opened through the open mouth of the through-channel 18 to an adjacent body 2 transfer. In addition, the second connection device 5 of the multiple connection block 35 a pressure measuring device (not shown) can be connected. One advantage of this design is the uniform cross-sectional diameter for all subsequent measuring applications. This is around 4mm, for example.

The formation of the basic body 2 to a multiple connection block 36 that acts as an intermediate block 34 between two basic bodies 2 of a multiple valve block 1 is to be used, is based on the representation in the following 6a . 6b and 11 explained in more detail. Here is the hole 12 again through the final element 32 locked. The mouth openings 21 . 30 on the front side 10 and at the bottom 16 are by plug elements 31 locked. The two side openings 22 . 23 are open. Pressure-carrying medium passes through one of these side openings 22 in the main body 2 and can be shut off by the valve 6 into the second fluid connection system and to the second connection device 5 be directed. Through the through channel 18 the pressure-carrying medium can be passed through to yet another adjacent base body to the opposite lateral opening 23 be transported.

There is no other basic body 2 more, then this opposite mouth opening 23 through a plug element 31 locked. This gives you a multiple end block 37 as he in the 7a . 7b and 12 is shown.

In an alternative embodiment, not shown, such an intermediate block 34 is used for the media connection. Then it is in place of the end screw 32 with the connection nipple 8th Mistake.

As plug elements 31 expanders are preferred. These are elements made of elastic material, the diameter of which can be selectively increased evenly. They can be brought into place with a small diameter and then expanded there for clogging. An advantage of the standardized body system is that different variants can be generated by different expander positions. This is done via a simple, rational expander assembly. The expander holes (channels and mouths of the first fluid connection system 14 ) are consistently provided with the same cross-section, for example approx. 4 mm. Within the fluid connection system 14 the desired expander position from 0 - 30 mm can be set with the appropriate stop. With through channel open on both sides 18 it can be made from a basic body 2 formed valve block as an intermediate block 34 insert that is used from a three-way valve block. By lining up such intermediate blocks 34 can be a multiple valve block of any length 1 form.

The composition of such a multiple valve block 1 is based on the representations of the 13 - 15 explained in more detail. Like from the 13 and 14 can be seen in the example shown here a multiple connection block 35 , two intermediate blocks 34 and a multiple end block 37 by means of the fastening device 4 to the multiple valve block 1 connected. The fastener 4 has one intermediate plate per separating surface 40 and four each with a connecting bridge 41 provided pins 42 as connecting elements 46 on.

The intermediate plate 40 has one using an O-ring 43 sealed through hole 44 on. The hole 44 is positioned so that it is between two orifices 22 . 23 neighboring body 2 for connecting the through channels 18 comes to rest. The intermediate plate 40 is further up and down with recesses 45 for the connecting bars 41 Mistake.

The connecting bars 41 have essentially an 8-shaped contour with two openings for receiving the pin 42 , The pencils 42 through the vertical through holes 27 in the basic bodies to be connected 2 plugged.

The connecting bars 41 reach into the recesses 28 and 40 one and are on the ends of the pins 42 attached. In this way you get a block connection with existing housing bores 27 , The fastening device has assembly-friendly connecting elements 46 , Installation is preferably hydropneumatic. This results in a vibration-proof press connection. The individual elements of the multiple valve block are optional 1 attached to each other via (not shown) detachable screw connections.

The standard components of the multiple valve block 1 as he in the 14 in exploded view and in 15 shown in the assembled state are:

• - four standard housings in the form of basic bodies pern 2 with ball valve / minimess connection,
• - three intermediate plates 40 with o-ring 43 .
• - twelve connecting elements 46 (each made up of a pen 42 and a connecting bridge 41 )
• - a medium connection G1 / 4i (this is one from the valve 6 and the connection nipple 8th of the multiple connection block 35 unit formed),
• - three locking ball valves (these are here through the end screws 32 and the valve 6 units formed), and
• - ten expanders SK 4 mm (as plug elements 31 ).

Thanks to the multiple valve block 1 can be connected to a single first connection device 3 four second connection devices 5 connect. This gives you four measuring points with one medium connection.

The vertical channels 26 can be used to attach the multiple valve block 1 be used. For this purpose, they form a hole pattern that can be designed to be compatible with a hole pattern attachment at the place of use. The fastener 4 ensures a vibration-proof press connection. With the multiple valve block 1 pressures up to 250 bar can be easily handled and this at temperatures of –20 ° C - 100 ° C.

The following is based on the 16 - 18 yet another embodiment shown for a base body. The embodiment differs essentially in the design of the shut-off element of the valve and its inclusion in the base body. The remaining features can be designed comparable to the previously described exemplary embodiments and are not shown further or in more detail here. That in the 17 and 18 The fluid connection system shown serves as a further example, modifications in adaptation to the fluid connection system of the basic body described above are possible. Corresponding parts are identified with the same reference numerals as in the previously described exemplary embodiments.

How 16 shows, the shut-off device 9 of the further embodiment, a cylinder body 50 on, the outer contour of which is shaped essentially in the shape of a cylinder jacket like the jacket of a vertical circular cylinder. In this context, the outer contour means the envelope; no part of the cylinder body except for a base explained in more detail later 52 extends over the surface of the cylinder 54 which from part of the cylinder body 50 is formed, but there are radially recessed recesses. In the circumferential direction concentric to the cylinder surface 54 annular recesses 56 and 58 can be used to hold O-rings that form an inner area of the cylinder body 50 can seal against its ends. A second radially recessed recess 60 has an area extending in a ring over the entire circumference 62 and cantilevers extending from this area in the axial direction 64 , There are three outriggers in total 64 provided, the center lines of which are each offset by 90 ° on three quadrants of the circumference of the cylindrical surface 54 to distribute. The fourth quadrant of the cylinder surface 54 does not have such a boom, but a circular ring-shaped depression 66 to hold an O-ring 68 , The central axis through the center of this annular depression 66 is perpendicular to the axis of rotation 70 of the shut-off device 9 ,

The base is at one end of the shut-off passage 52 arranged, which is designed as an approximately circular plate with a larger diameter than the diameter of the cylinder surface 54 , At the other end, as in the previously explained embodiments, is the square element 33 available, by means of which the shut-off device 9 about its axis of rotation 70 can be rotated.

Like from the 17 and 18 can be seen, the main body points 2 not the sack-like hole in this embodiment 12 to accommodate the shut-off device, but instead places a cylindrical through hole 72 on. While in the previously described embodiments, the bore 12 is arranged so to speak from the front, here is the through hole 72 perpendicular to it from "above" to "below". The through hole 72 has an inner cylindrical surface, the inner diameter of which closely matches the outer diameter of the cylindrical surface 54 is adjusted. On this inner wall 74 seal in the first recesses 56 . 58 used seals (not shown) the inner area of the base body 2 towards the outer ends of the through hole 72 down. The through hole is at one end 72 step-shaped to accommodate the base 52 extended, the extended area is with the reference symbol 76 specified.

The channels of the first and second connection devices 3 . 5 open on the inner wall 74 , In the exemplary embodiment shown, one opens into the first connection device 3 leading channel 77 relative to the axis of rotation 70 of the shut-off device 9 axially spaced from other channels. Different fluid connection systems 14 . 15 can also be formed, for example, by arranging them on different levels. The O-ring lies in the corresponding rotary positions of the shut-off device 68 on the edge area of the inner wall 74 around the mouth of the canal 77 and thus blocks the first connection device 3 from. If the position is offset by 90 °, the booms connect 64 the mouth of the canal 77 over the annular area 72 with the two fluid connection systems 14 . 15 , In the opposite position, where the O-ring 68 around the mouth 78 of the channel 77 is positioned by 180 ° of the shut-off device 9 the O-ring lies down 68 for a second muzzle 80 and thus blocks the fluid connection system behind it 14 while the channel 77 over one of the outriggers 64 and the annular area 62 with the other fluid connection system 15 is in fluid communication.

In the illustrated embodiment, the first and second connection devices 3 . 5 through enlarged holes 82 with internal thread 84 and conical to a channel 77 . 86 provided tapered end. Corresponding connecting elements designed with a conical tip for connecting pressure-carrying lines or measuring or switching elements can be screwed into these bores.

The shut-off device 9 according to 16 is overall one-story, with the different recesses 56 . 58 . 62 . 64 preferably by machining into the cylinder body 50 are introduced.

Claims (12)

Valve block ( 1 ), in particular for use in a pressure measuring station, for connecting a pressure line that carries the pressure to be measured to a pressure measuring device with a base body ( 2 ), which is a first connection device ( 3 ) for connecting the pressure line and a second connection device ( 5 ) for connecting the pressure measuring device, and with a valve ( 6 ) on or in the base body ( 2 ) for selectable opening and closing of a fluid connection ( 14 . 15 ) between the first ( 3 ) and the second connection device ( 5 ) is arranged, characterized in that at least two identical base bodies ( 2 ) are provided, which are modular in construction by a fastening device ( 4 ) to a multiple valve block ( 1 ) are connected by means of which several pressure measuring devices can be connected to a pressure line and / or by means of which pressures to be measured can be applied from several different pressure lines to one pressure measuring device or several pressure measuring devices. Valve block ( 1 ), in particular according to claim 1, for connecting a pressure line, which carries the pressure to be measured, to a pressure measuring device with a base body ( 2 ), which is a first connection device ( 3 ) for connecting the pressure line and a second connection device ( 5 ) for connecting the pressure measuring device, and with a valve ( 6 ) on or in the base body ( 2 ) for selectable opening and closing of a fluid connection ( 14 - 15 ) between the first ( 3 ) and the second connection device ( 5 ) is arranged, characterized in that the base body ( 2 ) has a substantially cuboidal outer contour that on at least two side surfaces ( 10 . 16 . 19 . 20 ) at least one lockable first connection device ( 3 ; 8th . 21 - 23 . 30 ) are provided, the first connection devices ( 3 ; 8th . 21 - 23 . 30 ) through a fluid connection system in fluid connection ( 14 ) through the valve ( 6 ) from the second connection device ( 5 ) can be separated or connected to it. Valve block according to claim 1 and claim 2, characterized in that fluid connection systems ( 14 ) of the two basic bodies ( 2 ) via laterally arranged connection devices ( 22 . 23 . 44 ) are in fluid communication with one another or can be brought. Valve block according to claim 1, characterized in that the fastening device ( 4 ) into one of the basic bodies ( 2 ) insertable pin ( 42 ) and a connecting bar with a holder for the pin ( 41 ) having. Valve block according to claim 4, characterized in that each base body ( 2 ) with at least one through hole ( 27 ) for the pen ( 42 ) is provided. Valve block according to one of claims 4 or 5, characterized in that each base body ( 2 ) with a recess ( 28 ) for complete press absorption of the approximately 8-shaped connecting web ( 41 ) is provided. Valve block according to claim 1, characterized in that the fastening device ( 4 ) an intermediate plate ( 40 ) between the basic bodies ( 2 ) which has a through opening ( 44 ) for a fluid connection between the base bodies ( 2 ) is provided. Valve block according to one of the preceding claims, characterized in that the base body ( 2 ) with one with the first or second connection devices ( 3 . 8th . 21 - 23 . 30 ) in fluid communication, across the base body ( 2 ) guided through channel ( 18 ) with side, closable openings ( 22 . 23 ) is provided, the through channels ( 18 ) neighboring basic body ( 2 ) through their opposite openings ( 22 . 23 ) are connected to each other in fluid connection. Valve block according to one of the preceding claims, characterized by: - a cylindrical through bore ( 72 ) to accommodate a shut-off device ( 9 ) into which the first connection device or at least one with the first connection device ( 3 ) connected channel ( 77 ) and the second connection device or at least one with the second connection device ( 5 ) connected channel ( 86 ) open in a radial direction and - one in the through hole ( 72 ) usable or used shut-off device ( 9 ), which has an essentially cylindrical outer contour with the diameter of the through hole ( 72 ) adapted outer diameter and with a radial opposite to a cylinder surface ( 54 ) the outer contour radially recessed, extending in the axial and / or circumferential direction, which depending on the rotational position of the shut-off member ( 9 ) the mouths of the connection devices or channels ( 77 . 86 ) fluidly connects or separates from each other. Valve block according to claim 9, characterized in that the shut-off device ( 9 ) a base at one end area ( 52 ), the diameter of which is enlarged compared to the cylindrical outer contour and that the through hole ( 72 ) at a corresponding end on the base ( 52 ) adapted extended end area opening ( 76 ) having. Valve block according to one of claims 9 or 10, characterized in that the cylinder jacket surface ( 54 ) of the shut-off device ( 9 ) on a sector of the circumference has a preferably annular recess for receiving a seal, which in a rotational position of the shut-off element ( 9 ) lies on a border around one of the mouths in order to close them pressure-tight. Pressure measuring station in vehicles, ships, systems or similar devices for measuring different pressures or for switching due to pressure changes characterized by one or more of the valve blocks according to one of the preceding claims.