CN1776375A

CN1776375A - Flowmeter

Info

Publication number: CN1776375A
Application number: CN 200510116269
Authority: CN
Inventors: 奥特马尔·厄迪尔
Original assignee: FLOW RATE MEASUREMENT GmbH
Current assignee: FLOW RATE MEASUREMENT GmbH; Hydrometer GmbH
Priority date: 2004-11-18
Filing date: 2005-11-04
Publication date: 2006-05-24
Anticipated expiration: 2025-11-04
Also published as: DE102004055816A1; DE102004055816B4; CN100470210C

Abstract

The invention relates to a fluid meter, in particular to a water metering mechanism or a heat metering mechanism (1). The fluid meter comprises an interconnecting piece (2), a measurement box (3) and a measurement insertion piece (4); the measurement insertion piece is positioned in the measurement box, wherein, the measurement box (3) comprises an inlet (5) which is connected with an entering part (14) of the interconnecting piece (2) in a flowing way, and an outlet (6) which is connected with a discharging part (15) of the interconnecting piece (2) in a flowing way and is optimally selected in the middle, wherein, a sieve (8) is arranged in the area of the outlet (6).

Description

Fluid meter

Technical field

The present invention relates to a kind of fluid meter, especially water meter or calorimeter measuring device, have a web member, a measuring box and a measurement insert that is arranged in measuring box, wherein, measuring box has an inlet and a central outlet, and this central outlet is in mobile the connection with the entering part or the discharge section of web member.

Background technology

Traditional fluid meter, for example water meter or calorimeter measuring device are to design for using in the good water of water quality.If in the water supply installation of water quality inferiority, often causing the pollution of measurement space to reach the measured value distortion, the especially pollution for the vital geometry of measuring accuracy by measuring box inside that cause thus, these instruments uses cause.Under serious situation, even can cause instrument malfunctioning fully, especially for example when the impeller of fluid meter gets clogged.Enter into measuring box for fear of foul, in traditional instrument, pack in the zone, ingate one and sieve, the measurement insert of this sieve and measuring box is configured to whole parts.Yet verified, although in entrance area, used sieve, measure insert and still can be polluted.

Summary of the invention

Task of the present invention is: a kind of novel fluid meter is provided, and this fluid meter has prevented to measure the pollution of insert effectively.

According to the present invention, a kind of fluid meter, especially water meter or calorimeter measuring device have been proposed, it has a web member, a measuring box and a measurement insert, this measurement insert is arranged in measuring box, wherein, measuring box have one with the entering part of web member be in the flow inlet is connected and one and the discharge section of web member be in mobile that be connected, preferably in the outlet of centre, wherein, a sieve is arranged in the zone of outlet.

This task solves by in the zone of outlet a sieve being set in the fluid meter of described type.Confirmed already: in the assembling that does not meet technical requirement, especially in the flushing of mistake,, also can measure the pollution of insert just even in inlet, be provided with sieve.Sieve by in exit region, packing into one, also do not avoided this pollution even meet in assembling under the situation of technical requirement.

What meet purpose is that sieve conduct independently parts is set up.Layout on this simplifies the structure on the one hand, manufacturing and assembling.Can sieve be taken off, purifies, and and pack into plain mode on the other hand.

Sieve is arranged in the zone that separates the position of web member and measuring box, thus, has easy especially accessibility for the assembler.Only measuring box need be pulled down from web member.

A kind of assembling of special form is: will sieve and be installed on upside in the notch or stage that correspondingly is provided with for this reason, is complementary with the size of sieve.

Scheme also can be positioned at sieve in the exit region of measuring box as an alternative.

Meet the configuration of purpose according to of the present invention another, in the outlet of calorimeter measuring device, be provided with a zone of shrinking gradually.The zone that this shrinks gradually---for example be configured to the transitional region of taper, can realize optimization for the required xsect of percolation, the pressure loss and protective action.

What meet purpose is that the zone of Shou Suoing is positioned on the web member gradually, specifically is positioned on hole upside, adjacent with measuring box.

Also propose according to the present invention, on the front side of sieve, in the zone of the bottom side of measuring box, be provided with one on width, see run through, the free space of plate-like especially, pass this free space, but fluid or water large volume ground passes and sieves and flow.

Correspondingly, sieve has a cross sectional dimensions configuration relatively large, the disc shape.Guaranteed characteristic favourable on fluid technique thus.

Meet the configuration of purpose according to another, sieve not only has the function that stops foreign matter to enter into the inside of measuring insert, but also be used on purpose influencing mobile, especially on purpose influence percolation, the pressure loss and/or predetermined flow direction (Stroemungsrichtungsvorgabe).Like this, in the exit region of fluid meter, except stopping foul, also obtain or can realize favourable mobile influence.Especially can prevent or reduce the pressure loss and similar phenomenon.

Sieve has: an interior zone, for example an especially circular interior zone; At least one is round the outer shroud of interior ring in case of necessity; And a plurality of contact pin, these contact pin are connected interior zone with a plurality of outer shrouds.

Observe with respect to flow axes on the longitudinal extension direction of contact pin, these contact pin are extended obliquely, and thus, the flow direction that passes the sieve extension makes the optimization of flow characteristics become possibility.

These contact pin are radially basically extends, if perhaps rest on the interior zone prejudicially---wish so to talk about for the reason on the flow technique.

Scheme as an alternative but, the contact pin of sieve also can be each other in structures squarely, with form the right angle or foursquare sieve percolation hole.The configuration of sieve is not subjected to restriction of the present invention under certain condition.

The sieve in the exit region of fluid meter, meet the destination sieve also is set in the entrance area of measuring box.This sieve can be used as also independently that parts are incorporated in the entrance area in this wise, makes it to take off in simple mode when web member separates and pack into again at measuring box.

What meet purpose is, sieve be configured to the injection molding parts, especially be configured to articles injection-moulded.

Description of drawings

A configuration that meets purpose of the present invention has been described in following accompanying drawing.Accompanying drawing is represented:

The sectional view of a configuration of the fluid meter of Fig. 1 prescription protection,

Fig. 2 follows according to the skeleton view of the web member of the fluid meter of Fig. 1 and can be installed to different sieve in this web member,

Fig. 3 reaches at the enlarged drawing according to a sieve in the exit region of fluid meter of the present invention

Fig. 4 is at the enlarged drawing according to a sieve as an alternative in the exit region of fluid meter of the present invention.

Embodiment

Label 1 among Fig. 1 is the calorimeter measuring device shown in the presentation graphs 1 always.This calorimeter measuring device comprises that connects a housing 2, and this connection housing is installed in the already present water supply line.Web member has an entering part 14 and a discharge section 15.

On the upside of web member 2, be mounted with 3, one (unshowned) impellers of a measuring box and be arranged in this measuring box, fluid, for example water-driven that this impeller is crossed by percolation, and its rotational motion is by the APU collection.

Here the whole of required parts are provided by a measurement insert 4, and this measurement insert is being packed state inside between connection housing 2 and measuring box 3.

Measure insert 4 and comprise sieve 7 in the inlet 5, that be configured to ring-type.In addition, by measuring insert 4 and the flox condition between definite inlet 5 of some passages wherein and measuring chamber 16.

In the zone of the outlet 6 of measuring box 3, be provided with another sieve 8.This sieve 8 is installed in the notch 9 on the upside of web member 2.This sieves 8 present positions and measuring chamber 16 direct neighbors, makes fluid to pass to large volume incessantly or without barrier the zone of discharge section 15 that this sieve 8 flows to web member 2 from measuring chamber 16.On the bottom side of sieve 8, connecting a zone 10 of shrinking gradually.

As shown in Figure 2, can use difform sieve 8.Sieve 8 can noly under the situation of needs be changed difficultly, and does not relate to other parts.

According to above-mentioned configuration, can be by measuring box 3 be disassembled simply and will sieve 8 and take off, clean and pack into from web member 2, and needn't dismantle web member.

Configuration according to the sieve 8 of Fig. 3 comprises an interior zone, for example with the interior zone of the form of as shown in Figure 1 interior ring 11.Be provided with a plurality of outer shrouds 12 with one heart round interior ring 11, these outer shrouds are connected by contact pin 13 with interior ring 11.

In the configuration according to Fig. 3, the contact pin 13 eccentric slightly extension ground, center of sieve relatively is provided with, and thus, liquid is applied in (verlieren) certain vortex.

By Fig. 3 also as can be known, each contact pin 13 is extended the ground structure with respect to the flow axes inclination, makes and also realizes mobile influence by this measure.

In the configuration according to the sieve 8 of Fig. 4 contact pin 17 is set with extending in parallel, these contact pin constitute each (size is identical under situation shown in Figure 4) sieve percolation hole.For the convection current movable property is given birth to special influence, these sieve percolation holes also can have different sizes.

Sieve 8 conducts independently parts are set up.It can be used as profiled member and for example uses the injection molding method with the different shape manufacturing by plastic material.

The invention provides a kind of novel fluid meter, in this fluid meter, the pollution that causes owing to the installation that does not meet working specification under certain condition can be avoided efficiently.Therefore, the present invention has very special contribution in related technical field.

The reference number inventory

The zone that 1 calorimeter measuring device 10 shrinks gradually

2 connectors, 11 interior rings

3 measuring boxes, 12 outer shrouds

4 measure insert 13 contact pin

5 entrances, 14 entering parts

6 outlets, 15 discharge sections

7 sieve (inlet) 16 measuring chambers

8 sieve (outlet) 17 contact pin

9 notches

Claims

1. fluid meter, especially water meter or calorimeter measuring device (1), have a web member (2), a measuring box (3) and a measurement insert (4), this measurement insert is arranged in measuring box (3), wherein, measuring box (3) have one with the entering part (14) of web member (2) be in the flow inlet (5) is connected and one and the discharge section (15) of web member (2) be in mobile that be connected, preferably in the outlet (6) of centre, it is characterized in that: a sieve (8) is arranged in the zone of outlet (6).

2. according to the fluid meter of claim 1, it is characterized in that: sieve (8) conduct independently parts is set up.

3. according to the fluid meter of claim 1 or 2, it is characterized in that: sieve (8) is arranged in the zone that separates the position of web member (2) and measuring box (3).

4. according to the fluid meter of one of aforesaid right requirement, it is characterized in that: sieve (8) is arranged in the zone of the upside of web member (2), is preferably placed in a stage or the notch (9).

5. according to the fluid meter of one of claim 1～3, it is characterized in that: sieve (8) is arranged in the exit region of measuring box (3).

6. according to the fluid meter of one of aforesaid right requirement, it is characterized in that: in the outlet (6) of calorimeter measuring device (1), be provided with a zone (10) of shrinking gradually.

7. according to the fluid meter of claim 6, it is characterized in that: this zone of shrinking gradually (10) is configured on the web member (2).

8. the fluid meter that one of requires according to aforesaid right is characterized in that: the outlet (6) of measuring box (3) on the upstream side of sieve (8), constitute one on width, see run through, the free space of plate-like especially.

9. according to the fluid meter of one of aforesaid right requirement, it is characterized in that: sieve (8) has the configuration of a disc shape.

10. according to the fluid meter of one of aforesaid right requirement, it is characterized in that: sieve (8) has the device that flows that is used on purpose influencing from measuring box (3) to web member (2).

11. the fluid meter according to aforesaid right one of requires is characterized in that: sieve (8) comprise an interior zone, around outer shroud (12) and some contact pin (13 or 17), they are connected interior zone with outer shroud (12).

12. the fluid meter according to claim 11 is characterized in that: contact pin (13) is tilted to extend ground directed with respect to flow axes.

13. the fluid meter according to claim 11 or 12 is characterized in that: contact pin (13) is radially or prejudicially basically and rests on the interior zone.

14. the fluid meter according to claim 10 or 11 is characterized in that: contact pin (17) is each other in extending squarely.

15. the fluid meter according to one of aforesaid right requirement is characterized in that: in the inlet (5) of measuring box (3) sieve (8) is set.

16. the fluid meter according to one of aforesaid right requirement is characterized in that: be provided with injection molding parts, especially articles injection-moulded as sieve (8).