CN101339440A - Pressure balance type temperature control bellow element - Google Patents
Pressure balance type temperature control bellow element Download PDFInfo
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- CN101339440A CN101339440A CNA2008100539628A CN200810053962A CN101339440A CN 101339440 A CN101339440 A CN 101339440A CN A2008100539628 A CNA2008100539628 A CN A2008100539628A CN 200810053962 A CN200810053962 A CN 200810053962A CN 101339440 A CN101339440 A CN 101339440A
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- diaphragm
- temperature control
- pressure balance
- balance type
- type temperature
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Abstract
Provided is a pressure-balancing temperature control bellows element for associative use in manufacture of pressure pipelines, which is precisely manufactured with a full-stainless steel material, thereby being high temperature resistant, corrosion resistant, acid and alkali resistant, highly sensitive, and stable in operation. When the external pressure is changed, the element can be adjusted automatically, thereby ensuring the balance of the internal pressure and the external pressure, and long service life.
Description
Technical field
The present invention relates to the temperature control field, especially make the pressure balance type temperature control bellow element of accessory as the pressure pipeline element.
Background technology
At present the temperature control field generally is the principle that adopts thermometal to expand with heat and contract with cold, and produces expulsive force by bimetallic strip distortion when the temperature variation, realizes the function of switch, is called the temperature control sheet metal element.Although the temperature control sheet metal element can reach the effect of automatic switch, this element still exists serviceable life very short, the serviceability problem of unstable.Under the long-term temperature difference constantly changed, sheet metal was easy to generate metal fatigue, and deformation coefficient reduces, and does not reach the function of closing fully, and the fatigue phase generally is 1-2, had a strong impact on support equipment overall serviceable life.
The temperature control sheet metal element have fatigability be always influence the support equipment work efficiency and serviceable life maximum a difficult problem, can utilize the temperature-sensitive characteristic of other objects to make temperature detect switch (TDS) so and come the alternative metals sheet? the present invention just in time can solve this difficult problem.
Summary of the invention
For solving existing temperature control sheet metal element short, serviceability problem of unstable in serviceable life, the invention discloses a kind of temperature control bellow element, aim to provide a kind of long service life, the pressure balance type temperature control bellow element of stable work in work.
The present invention mainly by upper diaphragm, diaphragm seal, middle diaphragm, diaphragm is airtight down is welded to form, wherein upper diaphragm, middle diaphragm and following diaphragm are by the punching press direct forming, the position punching press of upper diaphragm top center has the dome-type pit-holes of a diameter 2mm, and the punching press of following diaphragm centre bottom has four strong points; Middle diaphragm is a soft foil metal, adopts Hastelloy, and performance is more stable; Diaphragm seal is selected wimet for use, is fixed on the middle diaphragm by spot welding; A kind of boiling point of airtight preservation prescription liquid lower between upper diaphragm and middle diaphragm than water, general this prescription liquid is selected silicone oil or alcohol proportioning for use, utilize prescription liquid externally during temperature variation temperature-sensitive produce and vaporize or liquefy, volumetric expansion or dwindle, promote valve block and produce change in displacement; When external temperature raise, the prescription heated liquid changed into gaseous state by liquid state in the bellows, and pressure increases, volumetric expansion, and middle diaphragm outwards moves, and when temperature acquired a certain degree, liquid was all vaporized in the bellows, and middle diaphragm displacement amount also reaches maximization; When temperature reduced, the saturated gas cooling was converted into liquid in the bellows, volumetric contraction, and middle diaphragm is returned to the original position, the function that the realization that so circulates opens and closes automatically.This element can be used for temperature control type drain valve and temperature control instrument valve etc., as main seal element.
Welding of the present invention is to finish in the product technology most importantly, also is the most difficult step, and temperature sensing liquid can vapour loss when this technology should guarantee to weld high temperature, guaranteed that again whole element is in the short time welded closed.At present, this road technology can only adopt the weldering of fully-automatic laser circumferential weld, disposable at short notice finishing.
Temperature sensing liquid of the present invention is to be kept between upper diaphragm and the following diaphragm by seal welding technology, because the inner space is a full closeding state, temperature sensing liquid can not leak or volatilizing loss, when the temperature difference constantly changes, temperature sensing liquid is conversion mutually between vaporization or liquefaction, and original doses remains constant, therefore, bellow element expansion coefficient is each time fixed, and serviceability also is an absolute stability; When externally pressure constantly changed, bellow element can be adjusted expansion coefficient automatically, kept internal and external pressure balance.
Whole material of the present invention is all selected the high-quality stainless steel for use, and is high temperature resistant, corrosion-resistant, and antiacid alkali adds perfect welding technology, and the overall serviceable life of this bellow element is very long, is the best of breed element that accurate support equipment is selected.
Description of drawings
Fig. 1 is the section of structure of pressure balance type temperature control bellow element;
Among Fig. 1, upper diaphragm (1), diaphragm seal (2), middle diaphragm (3), following diaphragm (4).
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention is mainly by upper diaphragm (1), diaphragm seal (2), middle diaphragm, following airtight being welded to form of diaphragm (4), wherein upper diaphragm (1), middle diaphragm (3) and following diaphragm (4) are by the punching press direct forming, diaphragm seal (2) is fixed on the middle diaphragm (3), liquid closed being kept between upper diaphragm (1) and the middle diaphragm (3) of filling a prescription.When external temperature reaches the temperature sensing liquid boiling point, prescription fluid temperature between upper diaphragm (1) and the middle diaphragm (3) begins to raise, liquid volatilizees gradually, becomes gas, volumetric expansion, pressure begins to increase, middle diaphragm (3) outwards moves, and when temperature reached capacity, liquid was all vaporized in the bellows, middle diaphragm (3) displacement also reaches maximization, and middle diaphragm (3) drives diaphragm seal (2) and closes temperature control device; When external temperature reduces, pressure decreases, saturated gas begins to be converted into liquid in the bellows, volumetric contraction, the adjustment of middle diaphragm (3) and diaphragm seal (2) are replied contraction coefficient, and temperature control device is adjusted discharge capacity and exhaust temperature automatically, when external pressure changes, prescription fluid temperature between upper diaphragm (1) and the middle diaphragm (3) is adjusted expansion coefficient automatically also along with saturation temperature changes, and keeps internal and external pressure balance.
So circulation, support equipment can realize the function that opens and closes automatically within certain temperature range.
Claims (4)
1, a kind of pressure balance type temperature control bellow element, its structure mainly are made of jointly upper diaphragm, diaphragm seal, middle diaphragm, following diaphragm, and it is characterized in that: upper diaphragm, middle diaphragm and following diaphragm are fixed together by the closed loop seam welding.
2, according to the pressure balance type temperature control bellow element described in the claim 1, it is characterized in that, be added with the prescription temperature sensing liquid between upper diaphragm and the middle diaphragm.
According to the pressure balance type temperature control bellow element described in the claim 1, it is characterized in that 3, the position punching press of upper diaphragm top center has the dome-type pit-holes of a diameter 2mm.
According to the pressure balance type temperature control bellow element described in the claim 1, it is characterized in that 4, the punching press of following diaphragm centre bottom has four strong points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100539628A CN100573394C (en) | 2008-07-28 | 2008-07-28 | Pressure balance type temperature control bellow element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100539628A CN100573394C (en) | 2008-07-28 | 2008-07-28 | Pressure balance type temperature control bellow element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101339440A true CN101339440A (en) | 2009-01-07 |
| CN100573394C CN100573394C (en) | 2009-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100539628A Active CN100573394C (en) | 2008-07-28 | 2008-07-28 | Pressure balance type temperature control bellow element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100573394C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568189A (en) * | 2014-12-08 | 2015-04-29 | 太原航空仪表有限公司 | High-temperature sensor capable of converting temperature change into displacement signal |
| CN106373828A (en) * | 2016-11-24 | 2017-02-01 | 佛山通宝华盛电热控制器有限公司 | Double-probe pressure type manual reset temperature limiter |
-
2008
- 2008-07-28 CN CNB2008100539628A patent/CN100573394C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568189A (en) * | 2014-12-08 | 2015-04-29 | 太原航空仪表有限公司 | High-temperature sensor capable of converting temperature change into displacement signal |
| CN104568189B (en) * | 2014-12-08 | 2017-11-21 | 太原航空仪表有限公司 | A kind of pyrostat that temperature change is converted to displacement signal |
| CN106373828A (en) * | 2016-11-24 | 2017-02-01 | 佛山通宝华盛电热控制器有限公司 | Double-probe pressure type manual reset temperature limiter |
| CN106373828B (en) * | 2016-11-24 | 2018-02-06 | 佛山通宝华盛电热控制器有限公司 | Dual probe pressure type manual reset temperature limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100573394C (en) | 2009-12-23 |
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Free format text: FORMER OWNER: LI NENGBIN Effective date: 20130529 Owner name: TIANJIN YINQIU MACHINERY MANUFACTURING CO., LTD. Free format text: FORMER OWNER: LI SHENGHUI Effective date: 20130529 |
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Free format text: CORRECT: ADDRESS; FROM: 361005 XIAMEN, FUJIAN PROVINCE TO: 301508 NINGHE, TIANJIN |
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Effective date of registration: 20130529 Address after: 301508, Tianjin pan Zhuang Industrial Park Patentee after: Tianjin Yinqiu Machinery Manufacturing Co. Ltd. Address before: Hexiangxi Road, Siming District of Xiamen city in Fujian province 361005 No. 174 room 904 Patentee before: Li Shenghui Patentee before: Li Nengbin |
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Owner name: YINQIU ENERGY SAVING ENGINEERING CO., LTD. Free format text: FORMER NAME: TIANJIN YINQIU MACHINERY MANUFACTURING CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 301508 pan Zhuang Industrial Park, Tianjin Patentee after: Yinqiu Energy Engineering Co. Ltd. Address before: 301508 pan Zhuang Industrial Park, Tianjin Patentee before: Tianjin Yinqiu Machinery Manufacturing Co. Ltd. |