CN1445631A

CN1445631A - Constant temp. regulating device

Info

Publication number: CN1445631A
Application number: CN 03120519
Authority: CN
Inventors: B·弗雷德里克森; H·C·埃尔布斯
Original assignee: Danfoss AS
Current assignee: Danfoss AS
Priority date: 2002-03-14
Filing date: 2003-03-13
Publication date: 2003-10-01
Anticipated expiration: 2023-03-13
Also published as: DE10211131A1; DE10211131B4; SE0300319D0; SE0300319L; CN1252553C; SE524537C2; PL359113A1; PL204811B1

Abstract

Thermostatic temperature regulation arrangement with first (2) and second (14) operating elements, each of which has a connection (12, 28) to a valve (3, 15) and an operating space (9, 16). The operating spaces of the two elements are linked by a capillary tube (22). The first operating element has a thermostat (8) that controls a valve drive (11) and also acts as a remote temperature sensor for the second activation device.

Description

Constant temp. regulating device

Technical field

The present invention relates to a kind of Constant temp. regulating device, it has one first operating control and one second operating control, in these two devices each all has the geometry syndeton and the working chamber that are used for fixing on a valve, and wherein this working chamber is connected with each other by a kapillary.

Background technology

DE197 55 200 C2 disclose a kind of temperature control equipment of such type.A regulating device is connected with a remote sensor by one first kapillary.This regulating device links to each other with the working chamber of first operating control by one second kapillary, and this first operating control is controlled a Radiator valve again.The working chamber of first operating control links to each other with the working chamber of one second operating control by another kapillary, and in the temperature control equipment of the disclosure, this second operating control is also controlled a cooling medium valve, and in order to handle the cooling medium valve, direction of motion must be opposite.

Be applied to one at temperature control equipment and have its position when being the office block of the inwall that changes, such situation often occurs, promptly will change the distribution of office floor this class.Because remote sensor and regulating device generally all are fixed on the wall, so in the temperature control equipment of the disclosure, also must change the position of these members.This involves the change that kapillary lays again.In view of the above, this change makes the distribution of office floor become complicated.

Summary of the invention

Task of the present invention is to simplify thermostatic structure.

Start in the Constant temp. regulating device of described type at this paper, this task is so solved, and promptly first operating control has a thermostatic element, and this thermostatic element and the shared same-action of valve driver element are also as the remote sensor that is used for second operating control.

By this regulating device disclosed regulating device has been realized a kind of significant simplification.People have saved additional structural elements, i.e. a remote sensor.Whether this and this remote sensor is arranged in the regulating device in disclosed temperature control equipment or branch is arranged irrelevant.In addition, another advantage is, the position that often has been fixed on this calandria on the calandria with coefficient first operating control of valve driving member does not change owing to the adjustment of inwall when the distribution of an office floor changes yet.People save laying of an end capillaceous thus.Second task that this constant temperature member is accepted is that it is the operation valve driving member not only, and simultaneously also with the remote sensor that acts on second operating control.By the combination of two kinds of functions, it is more reasonable that this regulating device is not only cost, and its installation has also been simplified.

Wherein, particularly preferably be, the working chamber of first operating control constitutes in thermostatic element.In other words, this constant temperature member can directly act on the valve driving member, first operating control can directly be worked to a Radiator valve or a cooling medium valve, and the inner structure of this operating control does not need an additional working chamber.This has further simplified the structure of this regulating device.

Preferably, the first operating control work is to retainer of the arrival that overcomes an opposite force, and this opposite force is less than the opposite force of second operating control.When these two operating controls were controlled different temperature effect devices, this form of implementation was particularly advantageous.For example when calandria of first operating control control, during dissipating cover of second operating control control, then nonsensical is: for controlling first operating control in this place, promptly allow first operating control open a Radiator valve and the heating of this calandria, and second operating control Be Controlled simultaneously like this, promptly dissipating cover also is cooled.If what people will do now is: thermostatic element at first makes first operating control sail on " retainer ", in other words before second operating control puts into operation at all, Radiator valve is closed fully, and what people can will do automatically is: can not allow the function of these two registers interleave occur.These needs is for this reason, and first operating control is under the much bigger opposite force when arriving a retainer, thereby temperature rise can show no longer in the scope in the working chamber in the thermostatic element that and opposite result starts second operating control.Usually people set up a dead band with a numerical value one from 0.5 to 5 ℃ the scope, to guarantee, do not open two registers simultaneously.This point can realize by matching each other of spring.

Preferably, a maintenance cushion block that does not have valve is set, first operating control can be selected a ground and be fixed on this maintenance cushion block with leading to a valve.This maintenance cushion block constitutes one " ornaments " then so-calledly, promptly only fulfils the parts that keep function for one, and do not possess control function on original meaning.In this case, this first operating control only works as the remote sensor that is used for second operating control, but this first operating control needn't be done any change in configuration aspects.What only must want is, takes off this first operating control and is fixed on this maintenance cushion block from a valve.

Particularly preferably be at this, this maintenance cushion block has a retainer that is used for the valve driving member.The purposes of this retainer is that the valve driving member just can not move further again behind the motion certain distance, thereby the temperature rise in the thermostatic element only plays following effect, and promptly second operating control is handled the valve under its pipe.

Particularly preferably be at this, this retainer is adjustable.Can carry out temperature preset by this adjustable retainer.Particularly people can shorten or prolong that the valve driving member must pass by for the purpose that reaches the retainer that reclines.Preset temperature in view of the above, from the temperature of this preset, second operating control can be handled the valve under its pipe.

Preferably, kapillary is wound on the coil former with the part of its length at least.People can preset long relatively kapillary thus, and this can further improve its dirigibility when using this regulating device.If a length capillaceous is unwanted, then it can be wound up on the coil former, can not continue thus to disturb.People can be arranged in this coil former such place then, have favourable temperature conditions there.Temperature only has less important meaning to effect capillaceous for the function of regulating device.

Description of drawings

Below in conjunction with accompanying drawing by the explanation the present invention that preferred embodiment is detailed.Accompanying drawing is depicted as:

The regulating device of Fig. 1 one first construction journey in the stage; With

The regulating device of the modification of Fig. 2 in another construction stage.

Embodiment

Fig. 1 shows a Constant temp. regulating device 1 that has one first operating control 2, and this first operating control links to each other with a Radiator valve 3.Radiator valve 3 has a valve seat 4 in a kind of known mode, and this valve seat and an element 5 that is fixed on a valve on the axle 6 concur.Axle 6 is by a spring 7 stand under load on opening direction.

First operating control 2 has a thermostatic element 8 that has a working chamber 9, is provided with a kind of filling material in this working chamber, and the volume of this filling material varies with temperature.Thermostatic element 8 is limited by a collapsible camera bellows 10 in inside, inserts a pipe 11 in this camera bellows, and this pipe constitutes the part of a tappet gear.

If the temperature in the working chamber 9 raises, just pipe 11 further from thermostatic element 8, be forced out, and be direction towards the power of spring 7 be forced out make valve element 5 more near valve seat 4 and in view of the above throttling flow through the liquid of Radiator valve 3.Usually, also be provided with another spring (not shown) in operating control 2, this spring is along the directive effect identical with spring 7, with the opposite force of the motion that increases point tube 11.

If valve element 5 abuts on the valve seat 4, it is impossible then managing 11 continuation campaigns that add on the radiator body valve 3.We can say that 2 of first operating controls are on the retainer.

First operating control 2 has a known stationary installation 12, corresponding fixed geometirc structure 13 actings in conjunction on this stationary installation and the Radiator valve 3.Because have multiple disclosed possibility in order to constitute stationary installation 12 and fixed geometirc structure 13, so be not described in detail at this.

One second operating control 14 is set controls a cooling medium valve 15, and link to each other with cooling medium valve 15 by a fixed geometirc structure 28.The cooling medium stream of a cooling dome that is not shown specifically is led in 15 controls of cooling medium valve, can reduce a temperature in the chamber by this cooling dome.

Second operating control 14 has a working chamber 16, and this working chamber is by collapsible camera bellows 17 sealings.A packing elements 18 is set in collapsible camera bellows, and this packing elements reduces the free volume of working chamber 16.This collapsible camera bellows and tappet 19 actings in conjunction, this tappet is handled a valve push rod 21 by a reversing arrangement 20.If the pressure in the working chamber 16 raises, then valve rod 21 is further opened cooling medium valve 15.In contrast, if the pressure in the working chamber 16 reduces, then close cooling medium valve 15.

The working chamber 9 of first operating control 2 and the working chamber 16 of second operating control 14 are connected with each other by a kapillary 22.Kapillary 22 is made of the hollow conduit of a flexibility.Unwanted section of kapillary 22 is wound on the coil former 23.

The thermostatic element 8 of first operating control 2 now has two tasks.One of them is a control Radiator valve 3.As mentioned above, Radiator valve 3 is closed under the temperature of a rising always, up to valve element 5 seatings till on the valve seat 4.

The pressure that causes continues to increase because further temperature raises in the working chamber 9 of first operating control 2, spreads to then in the working chamber 16 of second operating control 14.Increased pressure in the working chamber of second operating control 14 causes opening of cooling medium valve 15 then.The heat eliminating medium that flows in the cooling dome (perhaps another cooling device) causes temperature decline in the chamber then, and this temperature descends can be by thermostatic element 8 identifications.When enough temperature descended, the pressure in the working chamber of second operating control 14 just can drop to the degree that cooling medium valve 15 cuts out once more.

First operating control 2 has a crank 24, can set a theoretical value to thermostatic element 8 by this crank.People neither need an additional regulating element, also do not need an additional remote sensor.On the contrary, just can realize the remote sensor function of second operating control 14 by single, a more or less traditional constant temperature valve gap.

Fig. 2 shows when first operating control 2 is not on a Radiator valve 3 also can realize above-mentioned functions.

As shown in Figure 2, first operating control 2 is installed on the cushion block 25, and this hot piece is except that the function of fixing and keep not having first operating control 2 other.Cushion block 25 has a fixed geometirc structure that schematically illustrates 26, and this fixed geometirc structure is corresponding to the fixed geometirc structure 13 of Radiator valve 3.In addition, as this figure illustrates, a retainer 27 can be set additionally on cushion block 25, this retainer is directed to the valve driver element effect.If retainer 27 is adjustable, in other words, the distance of itself and cushion block 25 also is variable, then can quite accurately set up a temperature in advance, come on this retainer at first operating control 2 under this temperature, promptly under this temperature the continuation of temperature raise cause automatically to second operating control 14 ' control, shown in Fig. 2 below.The adjustment of retainer 27 for example can realize by a little motor, because all be very little at this diameter and torque.Temperature is descended once more or further rising.Obviously, first operating control 2 both can link to each other with a cooling medium valve 15, as shown in Figure 1, again can with another valve, for example Radiator valve 3 ' acceleration, as shown in Figure 2.At this structural detail that also needn't add.Default by 2 pairs second Radiator valves 3 of first operating control ' carry out temperature.

The coil former 23 that is used for kapillary 22 is positioned at such position, a kind of as far as possible little temperature effect occurs at this place, and promptly this temperature effect situation about departing from when opening thermostatic element 8 is as much as possible little.This makes and only acts on kapillary 22 and do not act on the interference that the temperature effect of thermostatic element 8 causes and keep minimum.

Use this regulating device to simplify relatively and have the change of the working environment of wall construction flexibly.As a rule, first operating control 2 is retained on the calandria and not only handles there this calandria, but also with the remote sensor that acts on other valve.Certainly, also it is contemplated that with a unit 14 and be used as remote sensor.If need remove remote sensor from hot body in the future, then have a cushion block 25.This cushion block can be fixed on any one random position in the room, for example on wall, just can hold first operating control 2 then.

Can know aspect a lot of described form of implementation is derived from.For example also plural operating control can be set.In this case, each working

chamber

9,16 is connected with each other by other the kapillary that is not shown specifically.

People also can handle a cooling medium valve and handle a Radiator valve with second operating control with first operating control.

Can have a relatively long length that surpasses 10m from the kapillary that is arranged on the working chamber 9s in the thermostatic element 8, because the working chamber 9 in the thermostatic element 8 has bigger volume.Temperature variation also correspondingly causes the volume of thermostatic element 8 big relatively expansion to occur.

Obviously, the structure shown in Fig. 2 also can be handled a cooling valve, for example valve shown in Fig. 1 below, that have commutation function, or the valve that does not have commutation function of another kind of type.

Claims

1. the Constant temp. regulating device that has one first operating control and one second operating control, in these two operating controls each all has the connection geometry and the working chamber that are used for fixing on a valve, wherein, working chamber is connected with each other by a kapillary, it is characterized in that, first operating control (2) has a thermostatic element (8), and this thermostatic element and a valve driver element (11) acting in conjunction and conduct are used for the remote sensor of second operating control (14,14 ').

2. by the described regulating device of claim 1, it is characterized in that the working chamber (9) of first operating control (2) constitutes in thermostatic element (8).

3. by claim 1 or 2 described regulating devices, it is characterized in that first operating control (2) is worked to arriving a retainer (4) that overcomes an opposite force (7), this opposite force is less than the opposite force of second operating control (14,14 ').

4. by each described regulating device among the claim 1-3, it is characterized in that, a maintenance cushion block (25) that does not have the valve function is set, on this cushion block, can fixedly select first operating control (2) that a ground leads to a valve (3).

5. by the described regulating device of claim 4, it is characterized in that, keep cushion block (25) to have a retainer (27) that is used for valve driver element (11).

6. by the described regulating device of claim 5, it is characterized in that retainer (27) is adjustable.

7. by each described device among the claim 1-6, it is characterized in that kapillary (22) is wound on the coil former (23) with the part of its length at least.