DE1604162A1 - Control valve - Google Patents

Description

Dipl-Ing. Heinz Ciaessen

7ooo Stuttgart-W
Rotebühlstrasse 7o

DR-GO / Reg. 17th '. .- "

W Klebahn - H. Maurer 4-2

DRAGEE GGREGELUNGSTECHNIK GmbH. _t eat

Control valve .... ""

The invention relates to a bell valve for high pressure air conditioning systems that work according to the four-wire system with admixing control «..

For regulating induction devices in high-pressure air conditioning systems according to it is known to either the four-line system with admixing control two mixing valves and one switching valve with a total of nine connections or two special valves with a total of eight inlet ports au ver * ·. turn · The expenditure on actuators is therefore considerable and makes such a system more expensive. ■

The invention addresses the problem.-Au basically _t the expense of actuators reduce only eineia valve for "reach d.he dis function of several yeiitile with which only se many connections Ala © i @ t _f as because of Rohrleitungin lassbMingt © rforderlioh einfi »- .. · -. ■ ·. '.,

of which at: Β; ρ $ ρβμ & | ^ ββ & this becomes

g daduroii. ^; © 2 ^ © feMf 'Äwsi.-'& m ober® 'Ifil maidas un *. tare ΊΕ & ί%: \ & m -Verttllfcjßrf-erjs., .-. 4 | k $ öK iÖ f cmgeoimtoetee tmi. psralXti, sft \ llts «.-

The structure of the inside of the valve body corresponds to a * Hydraulic gate valves, however, aren't just on the openings The simple type customary there is closed, but rather the valve cone is provided, according to a further embodiment of the invention, with profiles to achieve certain flow characteristics.

The control valve according to the invention provides several advantages. In the case of a high-pressure air conditioning system that uses the four-pipe system Mixing control works, is when using the valve according to the Invention only one valve compared to previously at least two or more valves necessary. Since only a single drive is required for this »the cost savings are also considerable. In addition, a such a control valve due to its simple puncture with far less Fitters built into the air conditioning systems to be built »as e.g. two mixing valves and a switching valve of the previously known type * The control valve according to the invention combined So the function of three pressure valves with a switchover relay in a single compact component. -

• -

The invention is explained with reference to a drawing

In the drawing, a control valve is shown, which consists of the valve housing 1 with the connection openings 2,3,4,5,6 and 7, the bypass line 8, the sliding seats 9, Io, 11,12,13,14 * the valve cone with its! profiles 16, 17, 18 and 19, the spindle 2o and the stuffing box 21 exists * The valve is actuated by a pneumatic or electric drive (not shown). However, the type of drive has does not affect the sanction.

The control valve has only seohs Anschlüsset Ytermwasser-forward, Warmwasßer "-Rü0klauf, chilled water flow, Kaltw ^ ter return, ■ Indutio" sgerä1 * e "V0rl & uf _i Xndutionsgeräts return.

The VfBitil is connected as follows *

. ^: "■". Warm water flow at 4 - · -

Warnwaee'er-BÜoKlaaf at 5 λβιπμδι INSPECTED

Kaltwaeeer-Yorlauf "l» ei 3 original -

- -. XaXtwaeeeivBttoklauf feel 2 ■ '■

09835 / 04-1

In the illustrated valve position, there is full flow of the Hot water through the induction device

The hot water flows from connection 4 via sliding seat 12 (completely open), connection 7, induction device, connection 6, bypass 8, sliding seat 14 (fully open) for connection 5, *

. '■■ "■■." - ^c

The cold water flows from connection 3 via sliding seat 10 (completely open) to connection 2. The sliding seat 9 and the sliding seat 11 are closed.

As the stroke begins, the sliding seat 14 is gradually closed and at the same time the sliding seat 13 is gradually opened, so that the amount of water that no longer flows through the induction device immediately flows from connection 4 via sliding seat 13 to connection 5f. The same control process for the cold water takes place in the lower part of the stroke. The lengths of the valve housing and the cone are designed in such a way that no water flows through the induction device when the lift is in the middle. The sliding seats 9, 11, 12 and 14 are then closed, the sliding seats 10 and 13 are open. This ensures that cold and hot water cannot be mixed in any valve position. \ ■ . ·. ' .. '. ,. / ^: -: .. _;

The length dimensions of the profiles and the cylindrical guides of the The cone on the one hand and the distances between the valve seats in the housing on the other hand are therefore matched to one another in such a way that they are independent of the valve position of the cold water connections 2 and 3 never There is an open passage to the hot water connections 4 and 5 · The length dimensions of the profiles are also on the cone on the one hand and the distances between the valve seats on the housing on the other hand matched so that during the entire stroke the free area on the sliding seat 10 remains constant and the sliding seat 9 remains closed as long as the lifting movement of the cone on the Schi ebesitzeit 13 and 14, the free areas

■ 009835/0415. -.

change. The sliding seat 14 also remains closed and remains the. Free area on the sliding seat 13 is constant as long as the lifting movement of the cone on the sliding seats 9 and 10 causes the free Surfaces change. Furthermore, the length dimensions of the profiles and cylindrical guides of the cone on the one hand and the distances • On the other hand, the valve seats in the housing are matched to one another, that when sliding seat 14 is open, sliding seat 12 is also open and the sliding seats 11 and 12 are closed; accordingly that when sliding seat 9 is open, sliding seat 11 is also open and the sliding seats 12 and 14 are closed; further, daas, from the sliding seats 9 and 14 are never both open at the same time; likewise that of the sliding seats 11 and 12 never both at the same time are open and both sliding seats 10 and 13 are never closed at the same time *

The valve connections 2 and 4 are preferably against the valve connections 3 and 5 offset by 90 °.

Any amount of cold or hot water required by the induction device corresponds to a certain stroke position. The amounts of water flowing in and out at ports 2, 3, 4, 5 are for every stroke position the same.

6 patent claims

1 sheet of drawing. with 1 figure

- ¹ Y--

009 8 3 5/0415

Claims (6)

Claims 1. Hegel valve for high-pressure air conditioning systems, which are based on the four-wire system work with admixture control, characterized that the upper part and the lower part of the valve body (1) by a connecting pipe or a bypass line arranged outside the valve body (1) and running parallel to it (8) are connected » 2. Hegel valve according to claim 1, characterized in that the Valve cone (15) with profiles (16, 17, 18 and 19) for ore! development of certain flow characteristics is provided. 3 »Control valve according to spoke 1 and. 2, characterized in that the length dimensions of the profiles and the cylindrical guides of the. Cone on the one hand and the distances between the valve seats in the housing on the other hand are so coordinated that independent the valve position of the quay water connections (2 and 3) never an open passage to the hot water connections (4 and 5) is available. 4. Control valve according to claim 1 to 3, characterized in that the length dimensions of the profiles on the cone on the one hand and the distances on the other hand, the valve seats on the housing are matched to one another are that during the entire stroke the free area on the slide * - possession (10) remains constant and the sliding seat (9) is closed remains as long as the stroke movement of the cone on the sliding points (13 and 14) the free areas change; likewise that Sliding seat (14) remains closed and the free area on Sliding seat (13) remains constant as long as the free surfaces are cleared by the lifting movement of the cone on the sliding seats (9 and 10) sioh change. 00983570415 ^DE " ^{GG / Ees} ·" ■ 160A162 5 x control valve according to claim 1 to 4 _f characterized in that the length dimensions of the profiles and cylindrical guides are matched to the cone on the one hand, and the distances .the valve seats in the housing on the other hand to one another so ,, that when 'jchiebesitz (14) is open, sliding seat (12) are also open and the sliding seats (11 and 12) are closed; accordingly that when the sliding seat (9) is open, the sliding seat (11) is also open and the sliding seats (12 and 14) are closed; Furthermore, that both of the sliding seats (9 and 14) are never reopened at the same time, and that both of the sliding seats (11 and 12) are never open at the same time and that of the sliding seats (10 and 13) both are never closed at the same time, 6. Control valve according to claim 1 to 5, characterized in that the3 the valve connections (2 and 4) by 90 ° against the valve connections (3 and 5) are offset.