CN1606722A - Thermostat valve cap - Google Patents
Thermostat valve cap Download PDFInfo
- Publication number
- CN1606722A CN1606722A CN 02825708 CN02825708A CN1606722A CN 1606722 A CN1606722 A CN 1606722A CN 02825708 CN02825708 CN 02825708 CN 02825708 A CN02825708 A CN 02825708A CN 1606722 A CN1606722 A CN 1606722A
- Authority
- CN
- China
- Prior art keywords
- thermostat
- thermostat element
- pressure chamber
- change
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
Disclosed are a thermostat valve cap (1) and a method for adjusting the set point thereof. The inventive thermostat valve cap (1) comprises a thermostat element (7) provided with a pressure chamber (8) in which volume-adjusting means are arranged, and an actuating element (12) interacting with an expansion area of the thermostat element (7). External shape-modifying means modifying the shape of the pressure chamber (8) outside the expansion area from outside are used to keep the size of the thermostat valve cap as small as possible.
Description
The present invention relates to a kind of thermostat bonnet, it has a thermostat element, and this thermostat element has a pressure chamber, is provided with the internal mechanism that changes volume in this pressure chamber, the thermostat bonnet also has an executive component, and it effectively is connected with a stretching area of thermostat element.The invention still further relates to a kind of method of setting up the ratings of thermostat bonnet, this thermostat bonnet has a thermostat element that a pressure chamber is arranged, and is provided with the internal mechanism that changes volume in this pressure chamber, and described mechanism is according to temperature change pressure chamber volume.
Most of heating installation in residential building and office building all have this thermostat bonnet.Here, real heating installation valve is being opened on the direction by pretension, thereby valve rod is attached on the executive component of thermostat bonnet.When temperature was low, the pressure chamber in the thermostat element had its minimum volume, thereby executive component can be pushed down in the thermostat element very dark in the valve rod effect.Valve is opened this moment fully.When temperature raise, it also may be wax filling material-expansion perhaps that the filling material of thermostat element such as gas or liquid reach, thereby the volume of pressure chamber is strengthened.Executive component is continued to push to heating installation valve and turning off steam valve more strongly in the case.
The ratings of thermostat bonnet for a change, known way is mobile thermostat element, that is to say, or shifts to the heating installation valve so that set up out lower temperature rating, or leave the heating installation valve so that set up out higher temperature rating.This moving realizes by rotary handle that usually this handgrip is fixed on the shell by screw thread.Thermostat element can directly be fixed in the rotary handle.But also can be arranged in thermostat element in the auxiliary body that moves by rotary handle.
Thermostat element can displacement precondition be that the thermostat bonnet has the certain structure size.The thermostat bonnet must be enough big, so that it can hold all positions of thermostat element.
Certainly, also want to make the physical dimension of thermostat bonnet as far as possible little, so that the thermostat bonnet can not stretch in the cavity is too far away.This may bring impaired risk.In addition, less if the thermostat bonnet can guarantee, then general its outward appearance just better.
Task of the present invention is to make the physical dimension of thermostat bonnet keep less.
In the thermostat bonnet of the described type of beginning, so finish this task, the external agency that changes shape promptly is set, the shape of the pressure chamber beyond described mechanism changes in the stretching area from the outside.
Utilize this design proposal, just no longer need whole mobile thermostat element.Change if will realize ratings, just change the pressure chamber shape, that is to say, thermostat element is dwindled, so that executive component continues to be forced out in thermostat element, perhaps thermostat element increases, thereby makes executive component can continue to enter in the thermostat element.The volume of this outside changes and can so accomplish, promptly changes the outer shape of thermostat element.Thermostat element can completely or partially be compressed or stretch.The volume of the mechanism of this change shape is usually less than making the needed volume size of the whole displacement of thermostat element.
Here particularly preferably be, the external agency of change shape plays a role to the whole cross sectional area of thermostat element.Thereby the less compression variation of thermostat element or stretching, extension change just is enough to make pressure chamber to produce sizable volume-variation.In this case, utilized such conversion ratio, it is the ratio between the cross sectional area of thermostat element and useful area, acts on the executive component than thermostat element by this conversion.If for example executive component is loaded into cup-shaped that of thermostat element has a ripple jacket wall and caves in the portion, the transversal section of the portion of then only caving in acts on executive component.The volume of pressure chamber itself should remain unchanged if change the pressure chamber shape from the outside, and then this alteration of form just causes executive component further to be shifted out in the thermostat element or can further enter thermostat element.Executive component also just obtains another reference position by changing the pressure chamber shape, and from this position, it can act on the heating installation valve.The thermostat bonnet designs in particular for the heating installation valve.But it also can be used to other temperature device, for example air-conditioning.
Thermostat element preferably has a periphery wall, and it is configured to variable-length.So, can change the length of thermostat element in a word.In other words, so reduce thermostat element, promptly cause executive component further in thermostat element, to be forced out thus.But thermostat element also can extend, and this makes executive component further to be pushed in the thermostat element.
In the case, especially preferably make periphery wall have ripple.Ripple the wall of radiation fins shape be an especially simply structure, it can make periphery wall length change.Length variations is little.That is, ripple bears bend loading very weakly.In addition, the ripple on the periphery wall of thermostat element also has following advantage, has promptly strengthened thus and the thermostat element surface that contacts on every side.Thereby, further improved the heat transmission between thermostat element and surrounding environment.
Here particularly preferably be, make ripple quantity on the periphery wall less than the ripple quantity in the elongation zone that forms because of caving at.Will make such consideration here, promptly the operational stroke of executive component is much larger than the required length variations of thermostat element.Because the length variations of thermostat element is less, thereby a small amount of ripple is just enough.But the quantity of ripple also can be smaller than the quantity that can accomplish in the prior art before this in the stretching area.The stretching area just is used for the operation of executive component.Security function when temperature is too high or defencive function can guarantee by the periphery wall ripple.
The external agency that changes shape preferably has screw thread, and by screw thread and by these two parts of rotation, just can change can be for the cavity of thermostat element use.For example, the both ends of the surface that can make cavity mutually near or they are separated from each other.If make them close mutually, then thermostat element is compressed, the result, and remaining unchanged with volume when the temperature constant is precondition, executive component further is forced out in thermostat element.And when cavity extends, the thermostat element lengthening, the result, volume so remains unchanged, and promptly executive component further moves in the thermostat element.
Be preferably between thermostat element and a rotary handle and be provided with screw thread.In other words, by rotary handle, part of thermostat element such as base plate are moved, so that make whole compression of thermostat element or stretching, extension.The position of thermostat element must not be changed certainly.
Stipulate that in another replacement form of implementation an operator is stretching into by projection in the lid, thermostat element just is arranged in this lid.This also is a fairly simple approach that makes the thermostat element compression or stretch.
In the case, especially preferably with screw threaded arrangement on projection.Therefore, direct transmission power between screw thread and thermostat element.Do not have following danger, promptly transmitting element is out of shape in unallowed mode, thereby can't guarantee the accurate setting of ratings.
Thermostat element preferably has an anti-rotation east mechanism.Therefore, can cause ratings to change by rotating rotary handle or operator handle, and needn't fear that thermostat element rotates together.
Thermostat element is more preferably crossed pressing spring with one and is supported.The advantage of this embodiment is that the change of shape of thermostat element also can be used to overvoltage protection.If the heating installation valve has cut out under the executive component effect fully, and because external action, as the strong sunlight irradiation or a lot of people are arranged in the room and the precocity higher temperature then needs overvoltage protection.In this case, higher temperature has improved the pressure in the pressure chamber consumingly, and the result exists to make thermostat element or the impaired danger of other parts.Executive component can't be avoided again, continues motion because the heating installation valve of cutting out has stoped.But in this case, the shape variable of itself can change thermostat element, and for example its length can change, and that is to say the power that overcame pressing spring.Length variations is smaller, because length variations is to work on a big cross-sectional area.Volume is then drawn by the size of length variations and the cross sectional area of pressure chamber.
In the method for the described type of beginning, also so finish this task, promptly outside the stretching area, change the pressure chamber shape from the outside.
Suppose temperature constant, then the pressure chamber change of shape just makes the volumetric ratio of pressure chamber inside or volume distribute and must change.This change can so realize after all: executive component further is shifted out or further moves on the contrary thermostat element in thermostat element.Thereby, obtained another reference position of executive component, in other words, ratings has changed.
Preferably the stroke by a weak point changes shape, and this short stroke works on a big cross sectional area.Like this, also can obtain big volume when short stroke changes.Thereby the motion of executive component also just can reach by less stroke.
Preferably change the length of thermostat element.This is a fairly simple measure that changes the pressure chamber shape from the outside, and the result produces corresponding effect to executive component.
Below, also describe the present invention in conjunction with the accompanying drawings in detail according to preferred embodiment.Accompanying drawing is depicted as:
Fig. 1: the schematic cross-sectional view of first form of implementation of a heating installation thermostat bonnet;
Fig. 2: second form of implementation of thermostat bonnet;
Fig. 3: the synoptic diagram that is used for the illustration mode.
Thermostat bonnet 1 be used to handle heating installation valve 2 that with dashed lines schematically illustrates and thereby be used to influence environment temperature, heat this environment temperature by the heating installation of heating installation valve 2 controls.Heating installation valve 2 has an operating rod 3, and it is being opened on the direction by pretension, that is to say to be extruded for 2 li from the heating installation valve.
The thermostat bonnet has 4, one rotary handle 5 of a shell to rotate on shell.Rotary handle 5 links to each other by supporting-point 6 with shell 4.In fact the rotation of rotary handle 5 opposite shell 4 does not make thermostat bonnet 1 lengthening.
Be provided with a thermostat element 7 in rotary handle 5, it has a pressure chamber 8.Filling liquid is arranged or fill gas 8 li of pressure chambers, the volume and the temperature of this filling material matter a lot, and that is to say, when temperature was low, the volume of the filling material that pressure chamber is 8 li was less than when temperature is higher.
According to known way, thermostat element 7 has the portion 9 of caving in, and it is surrounded by a ripple shell-like wall that is also referred to as " inwall ".Ripple shell-like wall 10 has the ripple struction that a plurality of ripples 11 are arranged.Have the executive component 12 of a manipulatable end 13 to be inserted in 9 li in the portion of caving in, manipulatable end 13 again with operating rod 3 actings in conjunction.In other words, operating rod 3 is pressed onto executive component 12 as entering 7 li of thermostat elements always.When the temperature of pressure chamber 8 raise, this had caused the volume change of the filling material in the pressure chamber, must make executive component 12 further be forced out from 7 li of thermostat elements so.This makes control lever 3 further be pressed into 2 li on heating installation valve again and thereby causes the stronger throttling of heating installation valve 2.
Thermostat element 7 has a base plate 14 and an end plate 15.Base plate 14 and end plate 15 interconnect by periphery wall 16, and periphery wall 16 has corrugated part 17 equally, and it has the ripple 18 of predetermined quantity.Thereby, the variable-length of periphery wall 16.If the length of periphery wall 16 changes, then the shape of thermostat element 7 has just changed.
Lower end 19 radial and outward deformation of periphery wall 16.This end 19 embeds one 20 li of the internal threads of the weak point of 5 li of rotary handle.Should " internal thread " also can form by simple surface of contact with predetermined lift.Thermostat element 7 just can't opposite shell 4 rotate by a rotation preventing mechanism 21.
If rotary handle 5 is opposite shell 4 rotations on the supporting-point 6 that rotates, then the changing of transformation of screw thread 20 axial location of base plate 14 5 li of rotary handle.But, the lift of screw thread 20 is shorter, and for example 3mm/ revolution or littler, particularly 1.5mm/ change or be littler.That is to say that the change in location of base plate 14 is especially little.
Under the situation of the position that keeps end plate 15, along with the variation of base plate 14 positions must make the shape of thermostat element 7 change.If base plate 14 more near end plate 15, then must make executive component 12 further be shifted out for 7 li from thermostat element under the situation of chamber 8 constancies of volume that keep-ups pressure.In this case, made full use of certain conversion ratio, promptly work in base plate 14 whole transversal section to thermostat element 7 in one stroke.In order to cause corresponding volume balance, must make executive component 12 shift out a segment distance for 7 li from thermostat element, this distance is equivalent to many times of base plate 14 strokes.Described multiple is corresponding to the ratio of transversal section with the transversal section of base plate 14 of the portion of caving in 9.
This should be narrated in the embodiment shown in fig. 3.Supposition here, when adjusting base plate 14, the volume of pressure chamber 8 is constant.This precondition is just in order to simplify narration.Concerning the ratings of adjusting thermostat valve cap 1, do not need such precondition.
If base plate 14 moves a bit of distance, then cause in 9 li in the portion of caving in the volume of a correspondence is squeezed.Need to make a bit of distance b of executive component 12 motions for this reason.In this case, according to the ratio of the transversal section of the development length of base plate 14 and the portion 9 of caving in, can obtain 3 times or higher and particularly 5 times or higher conversion ratio.This is suitable for interference-free situation, in other words as long as valve does not cut out as yet and executive component 12 still can be mobile the time.
Concerning common thermostat valve element, the change in location of executive component 12 is estimated as 0.2mm/ ℃.Concerning changing as 10 °-30 ℃ ratings, correspondingly need the motion of 4mm 20 ℃ of scopes.That is to say, if resemble before make change ratings by mobile thermostat element 7, just thermostat element 7 must be moved 4mm.Owing to,, therefore, only need to also have the stroke of a 0.8mm here even base plate 14 moves from now on as long as change the shape of thermostat element 7.
That is to say and to estimate that base plate 14 will have much stroke a just can make the reference position of executive component 12 realize desirable variation, and select the lift of screw thread 20 then according to the maximum permission corner of rotary handle 5.
Fig. 2 represents that wherein, identical parts are represented with identical mark through the form of implementation of changing.Heating installation valve 2 and control lever 3 here do not draw.
Shell 4 has a lid 22 here, and thermostat element 7 just is arranged in this lid.Rotary handle 5 has a projection 24 on its end face 23,25 li of threaded holes of its insert cover 22.Projection 24 and cover being threaded between 22 and have little lift is equally for example changeed for 3mm/ or littler, especially 1mm/ commentaries on classics or littler.Projection 24 is attached on the end plate 15 of thermostat element 7, and wherein, end plate 15 has certain rigid here.
The base plate 14 of thermostat element 7 is pressed towards end plate 15 by a pressing spring 26 of crossing that is bearing on the shell 4.But here, this is stamped a projection 27, and the lower end 19 of periphery wall or the portion of extending radially out of base plate 14 are attached on the projection 27, thereby though base plate 14 can be shifted to heating installation valve 2 downwards, the motion of leaving heating installation valve 2 has been limited.
By making rotary handle 5 opposite shell 4 and even cover 22 rotation relatively, projection 24 is further moved into cover 22 li or continuation and shifts out from covering 22 li.This motion of projection 24 has caused the compression or the stretching, extension of thermostat element 7, and therefore causes the change of pressure chamber 8 shapes, and when volume was constant, this variation just showed as the motion of executive component 12.
If pressure chamber 8 temperature change in the change of shape of pressure chamber 8, then this equally also can certainly.So, in the ratings adjustment, be superimposed with the variation of regulating parameter.
In embodiment as shown in Figure 2, be used for adjusting the required torque of ratings, that is to say that steering force is less than the situation in form of implementation shown in Figure 1.
In embodiment shown in Figure 2, the shape variable of thermostat element brings an additional advantage: if such a case is arranged, be that the heating installation valve cuts out fully, executive component 12 is forced out from 7 li of thermostat elements as far as possible far in other words, but room temperature continues to raise, thermostat element 7 has impaired danger so, and this is because the pressure of 8 li of pressure chambers has raise.But here, it may be no problem that pressure in the pressure chamber 8 raises, because when this pressure raises, base plate 14 can overcome that pressing spring 26 power move and therefore make the volume of pressure chamber 8 become big, and this volume becomes can stop the pressure rising that occurs danger 8 li of pressure chambers greatly.Particularly advantageously here be hour just to have produced desirable volume moving of base plate 14 and increased.
Because it still is all less during at overvoltage protection that base plate 14 moves when ratings is adjusted, thereby the ripple that the ripple 18 of the corrugated part 17 of periphery wall 16 is less than on the inwall 10 is just much of that.
In both cases, also advantageously, for a kind of thermostat element 7 with large-scale ripple shell-like periphery wall 16 of a flexibility, people have selected to compare with traditional thermostat element stuffing pressure chamber 8 more or less and have changed the enhancing of thermostat element 7 thus.This enhancing is exactly the ratio of motion with the temperature change of executive component 12.
Claims (14)
1. thermostat bonnet, it has a thermostat element that a pressure chamber arranged, in this pressure chamber, be provided with the internal mechanism that changes volume, this thermostat bonnet also has an executive component, this executive component effectively is connected with a stretching area of this thermostat element, it is characterized in that, be provided with the external agency (5,20 that changes shape; 24,25), these external agencies change pressure chamber (8) shape outside the stretching area from the outside.
2. by the described cap of claim 1, it is characterized in that the external agency (5,20 of described change shape; 24,25) act on the whole cross sectional area of this thermostat element (7).
3. by claim 1 or 2 described caps, it is characterized in that this thermostat element (7) has a periphery wall (16), this periphery wall is configured to variable-length.
4. by the described cap of claim 3, it is characterized in that this periphery wall (16) has corrugated part (17).
5. by the described cap of claim 4, it is characterized in that be less than ripple in a stretching area that forms by invagination at the ripple (18) of the corrugated part (17) on this periphery wall (16), this executive component (12) is loaded in this stretching area.
6. by any described cap in the claim 1 to 5, it is characterized in that these change the external agency (5,20 of shape; 24,25) has a screw thread, by this screw thread and by two parts (5,14 of rotation; 5,22), just can change a cavity for thermostat element (7) use.
7. by the described cap of claim 6, it is characterized in that, between this thermostat element (7) and a rotary handle (5), be provided with screw thread (20).
8. by the described cap of claim 6, it is characterized in that operator stretches into a lid (22) lining to (5) with a projection (24), this thermostat element (7) is arranged in this lid.
9. by the described cap of claim 8, it is characterized in that screw thread (25) is arranged on the projection (24).
10. by any described cap in the claim 6 to 9, it is characterized in that this thermostat element (7) has a rotation preventing mechanism (21).
11., it is characterized in that this thermostat element (17) is crossed pressing spring (26) supporting by one by any described cap in the claim 1 to 10.
12. method of setting up the ratings of thermostat bonnet, this thermostat bonnet has a thermostat element that a pressure chamber is arranged, in this pressure chamber, be provided with the internal mechanism that changes volume, these mechanisms change the volume of pressure chamber according to temperature, it is characterized in that, outside the stretching area, change the shape of this pressure chamber from the outside.
13., it is characterized in that the stroke by a weak point changes shape by the described method of claim 12, this section stroke works to a big cross sectional area.
14. by claim 12 or 13 described methods, it is characterized in that, change the length of this thermostat element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10162608.8 | 2001-12-20 | ||
| DE2001162608 DE10162608B4 (en) | 2001-12-20 | 2001-12-20 | Thermostatic valve top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1606722A true CN1606722A (en) | 2005-04-13 |
| CN100501627C CN100501627C (en) | 2009-06-17 |
Family
ID=7709933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028257081A Expired - Fee Related CN100501627C (en) | 2001-12-20 | 2002-12-13 | Thermostat valve cap |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100501627C (en) |
| AU (1) | AU2002366848A1 (en) |
| DE (1) | DE10162608B4 (en) |
| GB (1) | GB2398621B (en) |
| WO (1) | WO2003054650A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865404A (en) * | 2012-09-26 | 2013-01-09 | 无锡市诚信洗选设备有限公司 | Flow valve knob of radiator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005001842B4 (en) * | 2005-01-14 | 2008-02-14 | Danfoss A/S | Thermostatic attachment for a heating or cooling valve |
| DE102005001841B4 (en) * | 2005-01-14 | 2008-01-24 | Danfoss A/S | Thermostatic attachment for a heating or cooling valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2342157A (en) * | 1941-10-04 | 1944-02-22 | Michael E Miller | Thermostatic radiator valve |
| DK93427C (en) * | 1953-12-16 | 1962-05-14 | Danfoss Ved Ingenioer Mads Cla | Thermostat-controlled radiator valve. |
| DE1946555U (en) * | 1966-07-13 | 1966-09-22 | F W Oventrop Arn Sohn K G | THERMOSTATICALLY CONTROLLED PIPELINE SWITCH. |
| DE2521161A1 (en) * | 1975-05-13 | 1976-11-25 | Heimeier Gmbh Metall Theodor | Thermostatic radiator valve with remote temperature head - has manual temperature adjustment on remote head instead of valve |
| JPS53116361A (en) * | 1977-03-17 | 1978-10-11 | Mitsubishi Chem Ind Ltd | Preparation of 7 acylthioo44enee33oxosteroid |
| US4216902A (en) * | 1978-03-23 | 1980-08-12 | Braukmann Armaturen Ag | Thermostatic control valve |
| DE29805921U1 (en) * | 1997-05-27 | 1998-06-25 | Gebr. Kemper GmbH + Co. KG, 57462 Olpe | Control valve for hot water circulation systems |
-
2001
- 2001-12-20 DE DE2001162608 patent/DE10162608B4/en not_active Expired - Fee Related
-
2002
- 2002-12-13 CN CNB028257081A patent/CN100501627C/en not_active Expired - Fee Related
- 2002-12-13 WO PCT/DK2002/000848 patent/WO2003054650A1/en not_active Application Discontinuation
- 2002-12-13 GB GB0412658A patent/GB2398621B/en not_active Expired - Fee Related
- 2002-12-13 AU AU2002366848A patent/AU2002366848A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865404A (en) * | 2012-09-26 | 2013-01-09 | 无锡市诚信洗选设备有限公司 | Flow valve knob of radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100501627C (en) | 2009-06-17 |
| DE10162608B4 (en) | 2005-09-01 |
| GB0412658D0 (en) | 2004-07-07 |
| DE10162608A1 (en) | 2003-07-17 |
| GB2398621A (en) | 2004-08-25 |
| GB2398621B (en) | 2005-11-09 |
| AU2002366848A1 (en) | 2003-07-09 |
| WO2003054650A1 (en) | 2003-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20171213 |