LT3124B - Regulator - Google Patents

Abstract

In a heating installation having a plurality of streams, in order, on the one hand, to make possible presetting of the opening condition of the valves on the plurality of heaters provided in one stream and, on the other hand, also to ensure that all user points are sufficiently supplied with heating liquid but nevertheless that the thermostatic valves of the individual heaters operate quietly and do not whistle, the invention proposes a stream regulation device for individual supply streams of a heating installation, having a valve housing (2) in which a desired-flow adjuster (8, 11, 12), forming a restrictor (9), is arranged between an inlet (3) and an outlet (4), and which has a valve (7) with a closing piece (21), and having an actuator housing (27) in which a first pressure space (36) is in fluid connection (41, 42) with a region downstream of the restrictor (9), the first pressure space (36) is separated from a second pressure space (37), provided with a first control connection (43), by means of a flow actuator (28), and the second pressure space (37) is separated from a pressure space (38), provided with a second control connection (44), by means of a pressure actuator (29), and a desired-pressure adjuster (54 to 59) being connected to the actuator housing (27). <IMAGE>

Description

The present invention relates to a regulator, in particular to separate supply lines for a heating system, comprising a valve body with a valve controlled at least by a flow regulating means.

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The heating systems used usually have several separate supply lines which, as a rule, are directed vertically from the basement of the building upwards and to the supply line are several radiators on several floors of the house, each controlled by a / thermostatic valve. On the one hand, it is guaranteed that all users, including all radiators with sufficient supply of heating fluid, on the other hand, the differential pressure in each thermostatic valve must be such that it operates quietly and does not cause whistling noise.

There is a known regulator, with a dual chamber housing, // for heating systems.

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However, the use of this regulator is not foreseen in a home supply system with supply lines for multiple users. Nor is it possible to set or change the required size of at least one of the regulatory bodies.

German patent DE-AS 1253429 discloses a regulating device for heating systems, in particular connected to a heat network with a backflow regulator, in which the regulator has a control valve operated by a regulator. The switching device switches the supply pressure in the regulator, in the control device, so that instead of the flow being passed, the pressure difference in the supply and return branches of the heating circuit is regulated. The unit is more commonly used in the trunk line, as well as in control line throttles, branchings, and in addition, an additional shut-off valve must be provided. ..... _.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simplified controller for alternative / flow control, respectively, for differential pressure control. / /. 7 / ,.'·

According to the invention, this object is solved by a regulator of the type mentioned above, which differs in that in the common cavity of the regulator body / one after the other. · Two control units are provided for alternative control of the valve by the control unit depending on the planned set size / -7 ·? .

According to the invention, there is also provided an actuator in a housing having a chamber only, an actuator having two independent regulating members which divide the chamber or the chamber housing into three pressure zones. Lines - For control two / 7 pressure zone control line connections are connected 'to the heating and heating return line 7 valve Third pressure zone connected to the branch inlet.

flowing flow / size requiredVikliy / without / to ^

ISO records this pressure in the valve connection measuring tube and delivers it to one of the chambers by means of holes. The following actuator is connected externally to the actuator housing and is designed as a differential pressure regulator.

A significant benefit of the present invention is that it is possible to / make / set / adjust a size; / without fully opening -all thermostatic 'valves / located .. to individual liner radiators-. At the same time maybe charge ^; significantly save labor and work time, especially with introduction. commissioning, repair, maintenance, etc. The invention has the significant advantage that it has two independent diaphragm actuators in the design of the / 4 ^ 3524 B regulator and especially in the diaphragm housing, one for regulating the flow and the other for differential pressure. Both required sizes are set directly by adjusting the regulator without further adjustment and regardless of pressure drop in the unit. - '

Accordingly, preferred designs provide for a socket between at least one of the adjusting members, particularly when the socket is round. Preferably, one or both of the flow regulators are membrane regulators with a membrane mounted on a diaphragm plate such that the pressure areas in the regulator body cavity are divided by membranes as movable walls20.

Other improvements imply that holes are made in the socket and that at least one membrane is pressed by its peripheral circumference between the edge of the socket and the housing.

In a particularly preferred embodiment, and in particular in the line regulator, the heating system with separate supply lines provides that the first pressure zone for the fluid is connected to the part behind the throttle, the first pressure zone by the first control member and the second control zone. organ is separated from the second pressure connection having a third control connection, and in particular a regulator of the required size is provided with the regulator body, in particular for determination of the required pressure. to

In the preferred embodiments, the flow control valve presses against the rear damper without being rigidly connected to one another and / or that a pressure pusher protruding against the control valve protrudes over the flow jet and presses on the rear damper. without connecting to each other. .7 '''. .. _: y When the regulator is closed under pressure and still. over-y / inbound-pressure 7 / differential offset / / provided with £ 7first_7777kfcruction, <y / h / pressure / control y ' ^? the organ is equipped with a flush valve.y.

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The other T-fill provides that -''- 'for flow:. the right size gauge consists of a 7 'socket / cylindrical cut -'; / sukimbsiyyMūfi0 // '+ which - / sayo y // in a circular wall 7 / has / a continuous circular

15, - 7 groove ^ such. that rotating body adjusts '/ effective throttle cross section between rotation / body input and interior, plus flowing 77s, wheel. size / gauge: Covered> 7 This way / 7 7covering 77 / can be done easily / accurately' and prompt ¹ ask .7 7 - // Flowing Flow / Required Size.

/ 7 7 Finishing- / 7. . ' ^? section. 7- //disrupt/.<your stream: / // stream:

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It is also particularly preferred that the valve / axis be perpendicular to the axis of symmetry of the inlet and / or outlet. In this way, a very ///compactfacial / • /// IpIldymaSi - '/ v / .typically 7 valve body is obtained, as well as a simple connection to the / - regulator body. /./ '-7 / ^ .. 7. / ..

. The preferred embodiment of the regulator according to the invention provides that the part behind the throttle 'which is connected to the pressure zone located in front of the valve. The principle connection between the pressure measuring point behind the throttle and in this case the flow control valve makes it possible to achieve in the preferred embodiment that the rear lock has a center tube which, when the valve is closed, fits into and behind the valve. with pressure zone.

its inner parti§ channels

Regulatory bodies can be done in a variety of ways. In the case of diaphragm actuators, it is possible to make a regulator body in which the regulating organs are compactly arranged for regulating the flow fluid, in particular in the direction of the liquid passing through it.

on the opposite guide

Another preferred design is that the pressure sensor of the required size is made such that the regulator body on the valve body side has an external threaded transmission part and that the free end of the transmission part is provided with a first support and a second support spring of the required size , and that the support may be repositioned by rotating it on the guide and changing its axial height along the guide. <

Other advantages and features of the line regulator of the present invention will be apparent from the following description, in which the preferred line regulator construction is separately explained on the basis of the drawings. They * show:

FIG. 1 is a cross-sectional view of the regulator of the present invention, and

FIG. 2 is the use of a regulator according to the invention as a regulator of a heating system line.

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The regulator 1 according to the invention, shown as a line regulator, first has a valve body 2. The valve body 2 has an inlet 3 and an outlet 4. The inlet 3 and the outlet 4 are separated from one another.

3, a valve 7 having a symmetry axis A is directed perpendicular to axis B passing through inlet 3 and outlet 4. Overflow valve 7 is provided with a flow sensor of appropriate size 8 which, with the inlet, forms a <throttle position S. / Inlet flow. the required size 8 is made in the form of a cylindrical, + ^ cut * X valve half 'open pivoting body 11 having a circumferential wall / continuous + widening groove 12. It is possible to rotate the flow flow required size 8 in the housing 2 slot 13. to change the cross-section of the entrance portion from the entrance 3 to the interior of the rotating body 14 by guiding the <wider part of the groove or / the narrower / part 3 of the groove 12 towards the entrance 3. Adjustment of the flow-through sensor 8 of the required flow size is performed by / a control part 16 which is pressed into the housing 2 by a circular cross-section ^; 17 in the center.

In the middle of the control part 16 for protection against unauthorized displacement there is a cap 18 which can be sealed with a seal 19.

The valve 7 has a movable end / valve 21 in the valve seat 6 having a sealing ring 22 on its front which can be pressed against the valve seat 6. The end valve 21 is controlled by a control part 23 secured in the valve body 2. thanks to rear damper pressure .. .... load.

The valve 2 -korpusu užmetamąja nut 26 connected to the control unit 27, in which one after the other are on the first control body 28 is indicated as a flow control body 28 and the second control body 29 is shown as a pressure control ^Ί body 29. Both of the regulatory bodies 28, 29 are membrane regulatory organs with membrane 31, respectively membrane 32, which have membrane ///''//./plates' 33, 34.

/5,7./// ^7: '////.////' / / .////// / /.// '' ⁷ '/''' ⁷ //tt/./ 7 The sighting means 28, 29 are provided in the single common chamber of the regulator housing 27. The regulator body 27 comprises a base portion 27a and a partially enveloping covering portion 27b which surrounds its respective region of the base portion by its periphery.

An annular portion 30 is disposed between the two portions, between which the diaphragm 32 is embossed and the main portion 27a, and the diaphragm 31 embedded between the annular portion 30 and the covering portion 27b so that the membranes retain their geometric shape.

The annular portion 30 is a socket for the regulating body 28. Along the annular portion 30 of the regulating body 28 between the contact 33 and the intermediate zone formed between the annular portion / 30 and the membrane 31 on its periphery on the one hand and the remaining zone 37 on the other. On the side 30 (between the control bodies 28 and 29), for the possible flow of fluid and / or for pressure relief, the annular part 30 / is provided with openings 30a.

// This fulfillment allows the simultaneous attachment of both membranes 7 //// • /./'- rie7pxi3c717aia.sonThese membranes.

³⁰ '..'</ / / /// '>·' / ⁷ · / ./>: /7/.7 '/ · / · - ⁷ 7 // //7/.7//'/ ⁷ / ⁷ '// /// Two pressure zones 36, 37 are separated by the regulating / organs 28, and the pressure zone 37 by the regulating organ 29 is separated from the pressure zone 38.' /./..- · _: Z //////. /

The pressure zone 36 is located above the longitudinal tube 41 in the center of the end valve 21, which, when closed / with the valve 7, flows into the throttle position 9

a cavity inside the flow sensor of the required flow size, as well as a tube 41, extending through the tube 41, inside the end valve 21, in a fluid. connected to the flow of the required flow flow size / 5 /, /. opening areas .9- within the cavity. · '

-With ··'·. pressure zone. 37 with connected '-' control line 'nozzle ·; << // -: --43., While / with' / pressure .zone '.-., 38 // connected, -.management. lines / nozzle 44. ' ^: t-. .. / End../: Valve with valve /// 21 / ', housing 21a /..- - //..Pressed: .Valve. / 7 ..for opening, with screw. 46 /'./. '. / incoming. - / flow </ regulator ... organ., 28 // This // / centered / located / - / spring -47. / (required _: size setting

- / spring / for flow /., for regulation). .print s //.-to socket-48 ../'--. /. 'Pressure //./ adjusting ..... ..organ 25' / center / is - provided ;; pressure relief valve 51 / with between pressure zones '37 and 38' over. sealing / ring / 'squeezing / ball ... .

The diaphragm plate 34 of the pressure / regulating member 29 and thus / the / pistons / 52 / which are connected to the regulating member 29 and which intervene in the axial / bore / 53 of the valve body 21a. e / abutment /.- in the rear damper cushion ^: 2 on the side, / thereby loading the rear // damper 21 and enabling valve 7 control. The pusher 5.2 passes through the 28th centrifugal section of the flow control orgap and is provided with a round seal. in cross-section.— ring. t / .'...

The regulator body 27 has a guide 54 opposite to its valve body 2 for a transfer portion 56 connected to a pressure regulating member 29 which is connected to an annular portion 57 at its opposite end to its diaphragm plate 34 through which the transfer portion and the central pressure regulating member · A helical spring 58 with a different support on the guide ring 54, pressed against the valve body X,

..in an open position. The annular portion-59 is screwed on the guide 54 such that its axial height can be set by the guide pin and thereby the tension of the helical spring1-58 [/. (the spring of the required size setting pressure 'difference, ·, ·.

. for regulation). ''.

Parts 54-59 of the regulator housing 27 are covered with a sealing cover 61 .. ·. . : / · '[/. .. -V / '/ ??' /?

Flow sensors of appropriate size © 8. it is possible .. to determine the amount of flowing flow [-. . '? [[,.' / [[When: · pressure difference P ₂ ' ^P 3 between inlet 3 to which fluid control nozzle is connected! .'43 · '- · // ir ^: . for 'drose.liaviiao instead of .9 becomes .too large, [resulting in differential pressure in pressure chambers.36'and 37 shifting, ⁷ flow control! to organ 28 is converted. opening the valve Ί, which raises the pressure [inside the flow gate © / 8; at the pressure P ₃ measuring point behind throttle 9.

_: When flowing '-' stream, .and that. pressure /. difference itself.

for and against throttle 9 .not insignificant, no more control over valve 7 flowing regulator '28. in this case, the pressure regulating member 29 becomes operative with a sufficient pressure difference Pf-Py between the pressure chamber 38 and the pressure chamber _; 37 pusher 52 actuates valve body 21a and valve 23 actuates end valve 7. The displacement pressure difference Pi 'P ₂ can be adjusted by

the axial height .'- of the annular member 59 and the initial tension of the spring 58 at the same time. When the pressure difference between the pressure zones 38 'and 37 becomes so large that the valve 7 closes and the pressure continues to rise, the' pressure relief valve 51 'may open, causing pressure equalization between zones 38; 37.

According to the invention, the regulator 'is arranged as a line regulator, preferably in the return branch 63 of a supply line supplying multiple users of the heating system (radiators 62).

The pressure zone 38 is connected by a nozzle 44 to a supply line feed branch 64 with a relative higher / pressure P ₃ . The chamber 37 is connected by a nozzle 43 to an inlet 3 under pressure P ₂ of the valve 2 on the return branch 63. The internal connection of the throttle body 11 below the throttle position 9, which is dominated by the pressure P ₃ with the pressure zone 36, is taken from FIG. 1 and is explained with reference to this drawing. .

In the regulator according to the invention it is possible to determine the flow through the difference P ₂ -P ₃ ) and the pressure difference P ₁ -P ₂ between the feed and return independently of each other in the required values and measure it. Very simple control of the line flow rate and the aforementioned differential pressure is possible, as is the case with known regulators where pressure and flow measurement are not possible ^; independently and apart from each other but can. only a general setting should be made in which, for example, for pressure measurement, the valve is independently and -through-flow-dependent 'Pressure drop inseparably /:' closed / cir </ pressurized / unqualified / not supplied / to users and unregulated.

DEFINITION OF INVENTION

Claims (18)

DEFINITION OF INVENTION 1. Regulator, namely for heating systems, for supply lines having a valve body ( 2) with valve (7), 5, which is at least controlled by a flow regulating means (8), characterized in that two are arranged side by side in the common cavity of the regulator body (27). adjusting means (28,29) for alternative control of the valve (7) by one of adjustment 10 7 organs (28.29) depending on the planned required size. a. '. The regulator according to claim 1, characterized in that between the two regulating bodies (28,29) 15th built-in socket (48). at least one regulatory body. Regulator according to claim 2, characterized in that the socket (48) is of round shape. 20th Regulator according to one of the preceding claims, characterized in that at least one regulating organ · (28,29) is a membrane regulating organ + with a membrane plate (33,3¾). existing Membrane 7 (31,32), 25th ///..+. ' // '/' / '..' / '/ .7 ^; The regulator according to claim 4, characterized in that both regulating organs (28,29) are membrane regulating organs with a membrane (31,32) on the membrane (33,34). 30 ',. ·. ·' / 77 Regulator according to one of Claims 2 to 5, characterized in that the socket (48) has holes (30a). 35 Regulator according to one of claims 2 to 6, characterized in that at least one membrane; / 5- / 12 /// ¾¾ edge collar compressed between socket edge · (30) and housing. 8. Regulator according to one of the preceding claims, characterized in that the first pressure zone (36) in the regulator body (27>) is connected by fluid channels (4.1,42) to a part outside the throttle position (9) for the first _k adjustment. the organ (28) being separated from the second pressure zone (37) having the first control line nozzle (43) and the second regulating body (29) being separated from the second pressure zone region (38). The regulator according to one of the preceding claims: · - · '·. . '* · .. /, · ... · ·. · ·! :: characterized in that the regulator body (27) is fitted with a sensor of the required size (54 to 59), in particular a sensor of the required pressure. ' 10. An adjuster according to any one of claims 1 to 9, characterized in that the first adjusting member (28) which presses on the rear flap (21) is not rigidly connected thereto. Regulator according to one of Claims 1 to 10, characterized in that a pusher (52) is connected to the second regulating means (29) by a first regulating member (28) which protrudes against and is pressed against the rear damper (21), without being rigidly connected to it. 12. The regulator according to one of the preceding claims, characterized in that in the second The 35 regulating bodies (29) are equipped with an overpressure valve + J3 Regulator according to one of the preceding claims, characterized in that the flow sensor (8) of the required size is made up of. a cylindrical cut off rotary body (11) in the rotation socket (13) which has a continuous / expanding circular groove (12) in its circumferential wall such that the rotating body (11) is rotated; determining the effective cross section of the throttle / (9) between the inlet (3) and the rotating body (11). / '/ - ^ - / 7/777 /, 14. / Adjustable according to one of the preceding claims, characterized in that the flow sensor (8) of the required flow size is covered with a cover. 15. Regulator according to one of the preceding claims, characterized in that the axis of symmetry (A) of the valve (7) is perpendicular to the axis of symmetry (B) of the inlet (3) and / or the outlet (4). _f Regulator according to one of the preceding claims, characterized in that the part behind the throttle (9) which is connected to the pressure zone (36) is located in front of the valve (7). -. '/ 17th The regulator according to claim 16 / a, characterized in that the end valve (21) has a tube (41) in its center which intervenes in and in front of the valve (7) with its closed valve (7). connected by channels (42) to a pressure zone (36). The regulator according to one of the preceding claims, characterized in that the pressure regulator of the required size is made so that the regulator body (27) has an external threaded guide (54) on the transverse side of the valve body with the first support (56). 57) and on the guide