DE7932463U1 - Control valve for one-pipe heating - Google Patents

Description

it I « t * * * * IIII

\ i designation :,

Control valve for one-pipe heating Description :,

The invention relates to a Regelarmatür for pipe heating systems with a housing which has a bypass channel and a flow channel, both channels are provided with a hot-water inlet in communication and which has a Anschlüßstutzen for a radiator connected to the flow channel, and a hot water outlet in communication _A in the also the bypass channel opens and which is provided with a valve , preferably a thermostatic valve ″ ₃ through

Ih-Ii-79 if

- 2 - · ■ I

that the flow channel opposite to the hot water inflow -is at least partially lockable.

From DE-OS 19 15 296 a control valve is the Initially known type, which, however, consists of a complicated structure and therefore difficult to be produced casting consists. -A major disadvantage of the known control valve is that that through the complicated course of the individual - ^ O channels in the control valve there is a considerable flow resistance results, so that a heating system in which several radiators one behind the other by one Pipeline is supplied with hot water, a considerable pump output must be provided, so that there is still a perfect flow of hot water through the last radiator. Another The disadvantage of the known control valves is that the heat sensor of the thermostatically controlled Control valve is located above the fitting and thus in an ascending, warm air flow lieg-υ by the below the thermostatic valve lying outer surfaces of the valve body is warmed up. This makes it practically impossible to use the The heating system and the thermostats are reasonably accurate, since every change in the flow temperature

j ". " Ί . "* ί

immediately changes the valve position on the thermostatic valves. However, the actual room temperature has practically no influence on the control process. Another disadvantage of the known valves is that ₃ that the desired se division of the two hot-water flows in the bypass passage and in the flow channel at fully open valve ₃ is to have basically the same quantity of flow per unit of time on both channels by the complicated management of the individual channels can not be reached is -

The invention is based on the object of providing a control valve of the type indicated at the outset create that is not only much simpler and therefore cheaper to manufacture,

but also enables the hot water flow to be reliably divided into two equal partial flows, And with the heat sensor of a thermostatically controlled control valve outside of itself around the valve body forming, rising warm air flow lies.

a · · · ff 1

· ■ · Iff ··· · Γ ·

This object is achieved according to the invention in that the housing has a continuous, has axial channel which at one end through the valve and at the other end through the connecting piece is limited that at the valve end through a side opening of the hot water inlet opens into the channel that at the other end through a side opening the hot water drain into the Channel opens that in the area between the hot water inlet and hot water outlet the channel through a Partition ir. Two sub-channels is subdivided, that the one Teilkaual as a bypass channel in the housing connects the hot water inlet with the hot water outlet that the other sub-channel as a flow channel at least as far as the area of the radiator connection piece and no connection with the Has hot water drain and that the remaining cross-section of the channel in this area with the hot water drain communicates.

1
) ι

. e e

Il · '

1 1> I It

1 I 1 i 1>

The advantage of a control valve designed in this way is, on the one hand, that the housing is very large is easier to manufacture, since there is only one continuous, preferably straight channel, which is open on both sides, so that the division into the bypass channel and the flow channel required partition can be produced in a simple manner. This can be done, for example, by Pour in or take place by inserting a separate dividing piece. Editing is also considerably simplified because the required thread for the valve at one end of the housing and for the connection piece for the radiator at the other end of one corresponding machine tool can be attached in one clamping. Aurh editing the required valve seat in the area of the confluence of the hot water inlet in the housing can be in the make the same clamping. The same applies to the processing of the hot water inlet and the Side openings forming the hot water drain, which are used accordingly as connecting pieces for pipelines are trained. Experiments have shown that the flow resistance on such a structure Control valve is significantly less than previously known

2 $ control units and that the desired distribution of the

· * < T I it 4 I

* * I t II * 4 I (I

* * «· Llllfl i I

t · · * T ι t ι ι

• I <· ** - ti (4 Il

i ♦ »

deep t

it » II t « « *

i i.u H

OUTER FILLS OF HOT WATER ISOLATE FOR ^{1 HALF PER ACID}

the Bypässkänäl and the VörläUfkäfiäl at full

An open valve is also guaranteed » ζ

Ih an advantageous embodiment of the invention is |

it is also provided that the flow channel is tubular |

beyond the area of the connecting piece

is longer and protrudes into the radiator * Here- f

through it is possible to insert the into the radiator |

leading hot water flow only at a sufficient distance |

from the connection piece to enter this, '.

so that due to the tubular extension i

produced the objector effect practically a compulsion through ^ |

flow of the radiator is achieved and the hot 1

water only after a corresponding residence time and heat I = release through the connection piece into the hot water drain of the housing flows back and mixes there with the partial flow passed through the bypass channel and flows to the next radiator.

[

^s ; Ih a particularly advantageous embodiment of the |

It is provided that the plane of the channel,;

dividing partition perpendicular to the axes |

the junction of the hot water inlet and hot water | drain is aligned and the cross section of the hot |

^f 4ί *

WässergüiäUfs in about 2Ur half and the cross-section of the hot water outlet gäriä overö'cktj where i / öri the so formed partial channels of the narrow confluences, turned part channels as a discharge channel serves as a discharge channel _s dessert the confluence of the hot water inlet is provided with a valve at the end of the valve can be produced in a simple manner by the conventional casting or pressing processes, whereby the partition wall can be integrally connected to the remaining parts of the housing or can be inserted as a separate component in the axial channel of the housing.

In an advantageous embodiment of the invention is additionally provided that are arranged in the openings of the Einmüdnungen hot water inlet and hot water outlet deflection and flow divider elements for the hot water ₃ which are connected to the partition wall. This J

ümlehk- and flow divider elements can be integrally connected to the other parts of the housing or else äls _i; Solid elements have to be pushed into the housing after casting or pressing, for example through the openings of the hot water inlet and the hot water outlet.
25th

<«4 4 < iiit ίφ

14 1 «<4 YY 4 ,

i Φ 4 «4 4 4 ''

"Eft a ¹ particularly * advantageous embodiment of the invention iät provided j that the subdivision of the channel into two partial channels is constituted by a in the channel · = öchiebbäres and in this fixable component * This embodiment has the advantage j that" [the channel in the Housing initially as a cylindrical

Bore can be made so that on any Internals in the channel interior is dispensed with in the manufacture of the housing and that a corresponding one is then applied The fitting part is pushed into the hole. This fitting part not only divides the Channel into two sub-channels, but is more expedient ^ manner at its valve-side end accordingly than Machined valve seat and at its end on the radiator side with a corresponding tubular extension provided «The processing of the housing body is reduced to just a few work steps, as well Due to the simplified design of the housing piece, production by casting or pressing is er-20 considerably simplified and thus the reject rate is reduced. The assembly of the retractable component is due to the cost-effective and yet precise machining

f Possibility to be accomplished with the help of simple devices

digit. Conveniently, the Ümlenk- and 2 $ Strömüngsteilerelemente are immediately on the einzuschie-

«Ti (I '*

III I "H" (K "**

bonding component attached ι

In a preferred embodiment of the invention is foreseesj that the insertable component through a Body is formed * dessert cross section the cross section of the channel corresponds and the one axial bore as Vöriaufkanäl and a channel-like recess on his Has outer surface as a bypass channel.

In a further advantageous embodiment of the invention it is provided that the housing with a device is provided, through which the flow cross-section of the flow channel can be reduced independently of the valve is. This can be advantageous in the arrangement of several radiators on a pipe string reduce the flow rate to the respective radiator by reducing the cross-section in the flow channel, so that the front radiators seen in the direction of flow through the pipe run with one per unit of time less hot water is applied than the radiators in the end of the pipe string and thus a better distribution of the available amount of heat to all radiators is guaranteed;

When using a retractable component for

• * i

ϊΐΐ

- 10 -

Formation of flow channel and bypass channel is provided in an expedient embodiment that the component is secured against axial displacement in the housing.

The invention is explained in more detail with reference to schematic drawings of exemplary embodiments. Show it: 10

1 shows an embodiment with a cast-in partition;

Fig. 2 shows a cross section through the fitting housing

according to the line II-II in Fig. 1; |

3 shows an embodiment with an inserted component;

4 shows a cross section through the fitting housing according to the line IV-IV in FIG. 3.

The embodiment shown in Fig. 1 consists of an elongated housing 1 which is cast, for example, from 2g brass. The housing 1 is in the direction of sei '

II I

i 'Wl, ί "

i ·

on ■

a nn

■ ·

- 11 -

1 'ner longitudinal extension provided with a continuous channel 2 which is closed at one end by a thermostatic valve 3 and which ^{opens at its other end into a connection piece 1} J for a radiator. At the valve-side end of the housing 1, a lateral opening 5 is provided, which is designed as a connection piece for a hot water inlet. At the other end of the housing 1, a lateral opening 6 is preferably provided in the same plane, which is expediently designed as a connection piece for the hot water drain from the relevant control fitting. The channel 2 is divided in its area between the hot water inlet 5 and the hot water outlet 6 by a partition 7 into two sub-channels. In each case at the ends of the intermediate wall 7, deflection and flow divider elements 8, 9 are inserted into the housing, which expediently protrude somewhat into the hot water inlet 5 and the hot water outlet 6. The deflecting divider element 8 is here provided with a bore 10 and machined on the outside in such a way that it serves as a seat for the valve disk 11 of the thermostatic valve 3. The flow divider element 9 also has a bore into which a tubular extension 12 is inserted, which over the j

Connection piece 1 out into the heating body? 13 there

• o. · ·. iif

et * · · f!

protrudes, which is only hinted at here. This arrangement turns the channel 2 into a bypass channel 14 and a flow channel 15 sub ^ where the bypass channel 14 the hot water inlet 5 directly connects to the hot water drain 6. The inflowing hot water 15 via the tubular extension 12 as a result of the injector effect pushed deep into the interior of the radiator j so that after a corresponding flow through the radiator the partially cooled hot water flows towards the hot water outlet 6 in accordance with the arrow 16 and is there with "that from the bypass channel 14 Can mix incoming hot water and can be fed to the next radiator. The cross sections of the Bypass channel 14 and the flow channel 15 are to each other dimensioned so that when the thermostatic valve is fully open, the same amount of hot water flows through both channels per unit of time, that is, half of it flows in each case the amount of hot water flowing through the hot water inlet 5. The actually the radiator 13 through however, the amount of hot water flowing into the flow channel 15 depends on that released by the thermostatic valve Cross section of the inlet opening 10.

The SöhniU representation in Fig. 1 also shows

· ■ * «41« f I

I * · * ICI ** i t

• · · * I ti · «· 41 4 I

know that the temperature sensor I7 of the thermostatic valve 3 outside the convection flow of the surrounding room air generated by the fitting housing and thus enables a much more precise setting than the previously known control valves for single-pipe heating systems where the thermostatic valve was used for manufacturing reasons had to be arranged above d.es housing.

The partition 7 and the deflection and flow divider elements 8, 9 can either be separate Components are used subsequently, for example in the case of a rectangular duct cross-section is possible without difficulty, as shown in FIG. But you can also like the well-known Control valves are manufactured in one piece by a casting process.

Pig * 3 shows a particularly preferred embodiment of the control valve. In this embodiment, the channel 2 is designed as a continuous cylindrical bore in the housing 1, into which the hot water inlet 5 and the hot water outlet 6 also open as cylindrical bores. One end of the case

44t 4t · f M 41 I If MIf

i * t «« 14 ti 1

• * 9 I 1 1 1. . 4 1

f * * · · $ t 4 ti * II

* 4 * 14 14 ** 1

• * # -1144t t r 4 41

It I

i ti

i "* i

it f ti t

<» Nt *

does ι »

• ι ι

t Iff

<ι ι

ί i is again sehlöösen by a Thermöstätventil 3 = äbge While dää change end turn illite a connection piece provided * l for a radiator 13 is t

The subdivision of the channel 2 into a bypass channel 14 and a flow channel 15 takes place here, however, by a separate component i8 ₃ which is pushed into the channel bore 2 * The component 18 is essentially

iÖ formed by a cylindrical body - _t whose cross-section corresponds to the cross-section of the channel 2 and which has an axial bore that forms the flow channel 15 * A channel-like recess on one of its outer surface, on the other hand, forms the bypass channel Ik in cooperation with the inner wall of the channel bore 2. The groove-like recess can here be produced by a flattened area running transversely to the cylinder axis, so that corresponding webs 19 and 20 remain at both ends of the component as deflecting and flow divider elements. The confluence of the flow channel 15 on the valve

iiseitis-eri end is in turn machined as a valve seat, t

which, for example, by a conical design of the j

End of the bore can be effected on this side. |

The end face of the component 18 at the other end can, | as shown in the drawing, correspondingly curved |

■ j

it H

6th 4th

• il Hi

ic I 4 It ti i

t ill 1 i it <

veriäUfeüj So that here the deflection of the return flow entering the KäriälböhrUng 2 is diverted out of the heat body (arrow 21) and so the ßruskver · "losses are reduced this end is extended accordingly by an inserted tube 22, so that again the power supplied to the heating element hot water is fed far enough into this here. in order to avoid "Strömüngskurzschlüsse" in the region of the Connection 'H nozzle.

In this embodiment is on de :? The side of the housing 1 facing away from the hot water inlet 5 or hot water outlet 6 is provided with a threaded hole 23 through which a screw 24 can be inserted, with which the. Component 18 can be fixed immovably in the housing 1. In the illustrated embodiment, the component Ϊ8 is provided with a through-hole 25 in the area of the screw 24, through which the screw tip designed as a cylindrical pin 26 can be screwed into the flow channel 15 * In this way it is possible i with the help of the screw 24 to reduce the flow cross section of the flow channel independently of the thermostat valve 3, so that the quantitative distribution of the hot water flow supplied by the hot water inlet 5

ii ti H i

1-6 -

i i «ii«

lii tit I 4 «

on the Bypäsäkänäl and the VörläUfkäriäi at Völl-ge "Opened Thermöätätveritil KUgühitäten the Bypässkänals i ^ \ can be changed

While the usual armature materials, for example brass ₃ , can in principle also be used for the insertable component 18, it is particularly expedient to manufacture this component from a plastic, in particular from polysulfone. This plastic is not only temperature resistant up to around 150 C °, but also against the heating

water chemically resistant ₄ Such a plastic

part can be produced with the required accuracy by injection molding or casting, so that the machining effort for the production of such a control arm-

■ | door is still reduced.

It should be pointed out that the two embodiments described are shown only schematically, that modifications are possible with regard to the selection of materials, structural design and the assembly of the individual components. For example, in an embodiment according to FIG . 1, it is entirely possible that

ii * * I I. '

it it 1 ι f

I U (I I I

<< i > I i

14 '<

III I'l i Ii

17 «·

the partition 7 in a plane Vefl-Suftj through the axis of the hot water supply 5 and the hot water * ^ äblaUfö 6 is formed And so the hot water inflow " Opening 5 divided in half by the partition 7 * The valve seat on the one hand and the routing of the return flow must then be adapted accordingly «

Claims (1)

Description; Control valve for single-pipe heating requirements: Control valve for one-pipe heating with a housing., Which has a bypass channel and a Has flow channel, both channels are in communication with a hot water inlet, and which has a connection piece for a radiator with the flow channel and a Hot water outlet is connected, into which the bypass channel also opens, and that with a valve, A thermostatic valve is preferably provided through which the flow channel opposite the hot water inlet is at least partially lockable, Phone! (6221) 38023Ö J · I TsWgfaiüWi Ipvejrilßtöc fctöln <Telex! 6883S§§ max d Pöstethöckkentö Cologne (ßL2 3yo10öSÖ) JKtö, M 4 ^ fe§1 ^ 00 ';'De, u, teoh _Ä feötik Ad Cologne (BLZ 37Ö7ÖÖ60) Kte, .Nr, 1236181 characterized in that the housing (1) has a continuous axial channel (2) which at one end through the valve (3) and at the other end through the connecting piece (4) is limited that at the valve end through a side opening of the hot water inlet (5) in the Channel (2) opens, which at the other end by a lateral opening of the hot water drain opens into the channel (2) that in the area between the hot water inlet (5) and hot water drain (6) the channel (2) is divided into two sub-channels (14, 15) by a partition (7) is that the one sub-channel (1 * 0 as a bypass channel in the housing (l) connects the hot water inlet with the hot water outlet (6) that the other sub-channel (15) is routed as a flow channel at least as far as the area of the radiator connection piece (H) and has no connection with the hot water drain (5) and that the remaining cross-section of the channel (2) in this area is connected to the hot water drain (6) . * * * * * * * II ti f Il IfIl * « 4 1 (1 «I I * t * I t »III II I "'I (f I I I I I 1 * * * t t 1 4th i I ■ * l * Il MM I Il ti 2 * ftegölätfmätUrnaeh AilsprUch I ₁ -characterized j that the flow channel (l! I) is pipe-like extended beyond the area of the connecting piece (k) and protrudes into the radiator (Ij) * 3 * RegeiärmätUr according to claim 1 barren 2, characterized _s that the plane of the channel (2)-dividing intermediate wall iö (7) is aligned perpendicular to the axes of the ⁸ junctions of hot water supply (5) and hot water drain (6) and covers the cross section of the hot water inlet (5) approximately half and the cross section of the hot water drain (6) completely, of the sub-channels (IH, 15 ") formed in this way, the sub-channel (15) facing away from the injections serves as a flow channel , whose end associated with the confluence of the hot water supply (5) is provided with a valve seat. 4. Regelaririätür according to eiriem of claims 1 to 3 _a, characterized in that arranged in the openings of the junctions of Heißwasserzüiaüf (5) and Heißwässerablaüf (6) Ümlenk- and Strömüngteilerelemente (8, 9; 19, 20) for the hot water H I. ItI it I t t i ti i ι t t I "I. j that are attached to the ffefin wall (7) * 5 * RegelärmatUr according to any one of claims 1 bit ^ characterized in that the division of the _s Känälä (2) in two Teilkähäle (1 15) and formed by a einschiebbäres in the channel (2) in this fixable member (18) 6 * control valve according to claim 5 »characterized in ₃ that the component (l8) of forming the VorlaUfkanäl sub-channel (15) is provided at one end with the valve seat and at the other end with a connection for a röhrartige extension (22). 7. Control fitting according to one of Claims ^1, _3, 5 or 6, characterized in that the deflection and flow divider elements (19, 20) are attached to the component (18). 8. Regeiärmätür according to one of claims 5 to 7 , characterized in that the sliding component (l8) is formed by a body whose cross-section corresponds to the cross-section of the channel (2) and which has an axial bore as a Vorlärüf- ".." "... φ i '' »· I I. «II 4th I i I · I Il Ϊ i nt Hit 4 <«4 i canal (15) and a rinnehäriiige recess its outer surface has älö Bj / pässkäriäl (IiI), 9 * Regulatory device according to one of claims 1 to O ₃ characterized in that the housing (1) is provided with a device by which the flow cross-section of the supply channel (15) can be reduced independently of the valve (jj). 10 * control door according to one of claims 5 to 3, characterized in that the part (l8) against axial displacement in the housing (1) is secured »