CN101818852B - Metallic diaphragm wax thermodynamic component for automatic steam trap - Google Patents
Metallic diaphragm wax thermodynamic component for automatic steam trap Download PDFInfo
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- CN101818852B CN101818852B CN 200910117568 CN200910117568A CN101818852B CN 101818852 B CN101818852 B CN 101818852B CN 200910117568 CN200910117568 CN 200910117568 CN 200910117568 A CN200910117568 A CN 200910117568A CN 101818852 B CN101818852 B CN 101818852B
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Abstract
The invention discloses a metallic diaphragm wax thermodynamic component for an automatic steam trap, which is characterized in that: an upper shell 1 is a thickened near-hemispherical component, and a sealing strip 2 and a diaphragm 3 are both disc-shaped components and coaxial with the axis OO' of the upper shell 1; the central position of the sealing strip 2 is provided with a circular hole, and the edge of the diaphragm 3 is connected with the edge of the circular hole at the central position of the sealing strip 2; a plunger piston 4 is arranged below the diaphragm 3 and coaxial with the axis OO' of the upper shell 1; and the edge of a disc-shaped lower shell 5 is connected with the edge of the upper shell 1, the lower shell 5 is coaxial with the axis OO' of the upper shell 1, and the central position of the lower shell 5 is provided with a circular hole, and the diameter of the circular hole is slightly greater than that of the plunger piston 4; and a closed space formed by the inner wall of the upper shell, the sealing strip 2 and the diaphragm 3 is filled with solid temperature-sensitive wax 6.
Description
Technical field
The present invention relates to a kind of Automatic steam trap Trap thermodynamic element.
Background technique
Steam has been widely used in all trades and professions, such as industries such as oil, chemical industry, weaving, medicine, food as important secondary energy.In whole vapour system, the thermal efficiency that uses in order to improve steam, Automatic steam trap Trap is used in a large number.The effect of Automatic steam trap Trap is on steam pipe system or steam-heating apparatus, automatically gets rid of water of condensation, air and non-condensable gas, prevents steam leakage, improves the thermal efficiency.In actual use, what generally adopt is saturated vapour formula metal bellows, what namely fill in bellows is thermosensitive liquid, the part but saturated vapour formula metal bellows bellows comes with some shortcomings, the vaporization of thermosensitive liquid in some special environment, volume change easily is subject to the impact of ambient, external environment, as the temperature owing to surrounding environment is lower at dead of night, can in pipeline, produce a large amount of condensed water and cool air, its temperature is determined value, because temperature sensitive liquid is subject to temperature than the impact of low environment, need the long period just can reach required variance ratio, expanding volume is affected, the pressure that produces is also unstable, and bellows is moved normally, affects the use of steam; The expansivity of this thermosensitive liquid that adopts at present is low, the pressure that produces is not high, and element is well played a role, and existing metal bellows structure, easily produce bellows all directions unbalance stress during the thermosensitive liquid phase transformation, so that the amount of deformation of diaphragm is affected.
The wax formula thermodynamic element made from temperature sensitive wax at present, it can satisfy the requirement of micrometric displacement and large driving force simultaneously, and has simple in structure, reliable in action, temperature control precision than advantages of higher.It is incompressible according to solid and liquid and utilizes the volume of working medium in the seal container (mixture of temperature-sensing wax and copper powder) to vary with temperature the physical property that changes and work, because seal container adopts the red copper that is, there is certain hysteresis quality in the transmission of temperature in less heat transfer area, fluorine rubber capsule rubber and phrenic serviceability temperature all can be at 100～180 ℃, so wax formula thermodynamic element can only be applied to the occasion that the thermostatic Automatic steam trap Trap generally is lower than 100 ℃, can not be used in higher temperature, so using scope is subject to great restriction.
Summary of the invention
The purpose of this invention is to provide metallic diaphragm wax thermodynamic component for automatic steam trap.
The present invention is metallic diaphragm wax thermodynamic component for automatic steam trap, upper casing 1 be one the thickening near hemispherical member, diaphragm seal 2, diaphragm 3 is the disc member, and diaphragm seal 2, diaphragm 3 is all coaxial with the axes O O ' of upper casing 1, home position place at diaphragm seal 2 has a circular hole, the edge of diaphragm 3 is connected with the edge of the home position place circular hole of diaphragm seal 2, plunger 4 is installed in below the diaphragm 3, and coaxial with the axes O O ' of upper casing 1, the edge of the lower casing 5 of disc is connected with the edge of upper casing 1, lower casing 5 is coaxial with the axes O O ' of upper casing 1, home position place at lower casing 5 has a circular hole, the slightly larger in diameter of this circular hole is in the diameter of plunger 4, at upper casing 1 inwall and diaphragm seal 2, be filled with solid-state temperature sensitive wax 6 in the confined space that diaphragm 3 consists of.
The temperature control precision of the temperature sensitive wax that the present invention uses is high, and when solid, liquid became, volumetric expansion was up to 11～15%; When ambient temperature raise, the dilatant in the wax element became liquid phase by solid phase, and volume sharply expands, and can produce the pressure up to tens of MPas, produces larger active force; The heat transfer area of bellows is large, can rapidly energy be passed to temperature sensitive wax, is quick on the draw, and is swift in motion.When temperature sensitive wax is heated by solid phase change liquid phase, be subjected to the impact of external environment less, so volume change is constant, the pressure stability of generation.Also can arrange according to use occasion the temperature of condensed water and cool air, select the temperature sensitive wax of respective phase change point, when reaching this temperature, temperature sensitive wax all undergoes phase transition, the effect of bellows is fully played, condensed water and cool air are discharged fully, improved the utilization efficiency of steam.
Description of drawings
Fig. 1 is each member separate type sectional drawing of the present invention, and Fig. 2 is assembly structure figure of the present invention.
Embodiment
Such as Fig. 1, shown in Figure 2, upper casing 1 be one the thickening near hemispherical member, diaphragm seal 2, diaphragm 3 is the disc member, and diaphragm seal 2, diaphragm 3 is all coaxial with the axes O O ' of upper casing 1, home position place at diaphragm seal 2 has a circular hole, the edge of diaphragm 3 is connected with the edge of the home position place circular hole of diaphragm seal 2, plunger 4 is installed in below the diaphragm 3, and coaxial with the axes O O ' of upper casing 1, the edge of the lower casing 5 of disc is connected with the edge of upper casing 1, lower casing 5 is coaxial with the axes O O ' of upper casing 1, home position place at lower casing 5 has a circular hole, the slightly larger in diameter of this circular hole is in the diameter of plunger 4, at upper casing 1 inwall and diaphragm seal 2, be filled with solid-state temperature sensitive wax 6 in the confined space that diaphragm 3 consists of.
As shown in Figure 2, upper casing 1 can utilize corresponding mould with lower casing 5, disposable impact briquetting and obtaining; Pour in the mould by the temperature sensitive wax liquid that high temperature is dissolved, obtain the solid-state responsive wax 6 of moulding through supercooling; With diaphragm seal 2, diaphragm 3, plunger 4 usefulness welding manners are fixed together with condenser discharge welder or other welding equipment, form member 7.The solid-state responsive wax 6 of moulding is placed between upper casing 1 and the member 7 and compresses remove redundance, then with argon arc welding machine or other welding equipment part obtained above and lower casing 5 are integral in the disposable rapid welding of peripheral direction, avoid solid-state responsive wax to dissolve outflow as far as possible.
The selection of temperature sensitive wax
The temperature sensitive wax commonly used that can enumerate according to following form selects suitable temperature sensitive wax to fill the bellows that obtains function admirable.
Upper casing 1 adopts is structure near the hemispherical head form, stressed evenly; In the situation that the active force that the temperature sensitive wax phase sell of one's property of thickening is given birth to can not make upper casing produce distortion, power all acts on the flexible sheet 3, makes flexible sheet 3 produce distortion.Upper casing 1, lower casing 5 can adopt corresponding mould one time punching molded.Between upper casing, diaphragm seal, flexible sheet, fill temperature sensitive wax.Diaphragm seal 2 adopts cemented carbide, and flexible sheet 3 adopts preferably alloy of elasticity, and diaphragm seal 2 can couple together by welding and flexible sheet 3, or adopts additive method to connect.Be welded with one with the plunger 4 of small aperture at flexible sheet 3, the surface roughness of an end of plunger 4 is higher, valve opening or exhaust port can be sealed well under the drive of flexible sheet 4, has improved the reliability of element.
Working procedure of the present invention: as shown in Figure 1, when steaming device just starts, the temperature in the pipeline is lower, temperature sensitive wax is in solid state, and interior pressure is lower, and flexible sheet shrinks under the effect of interior external pressure, valve is in opening state, this moment condensed water, air and non-condensable gas just can be discharged continuously; When rising along with the temperature in the valve, temperature sensitive wax is heated and begins to dissolve, the volume rapid expansion so that in press liter, when pressing greater than external pressure in the bellows, element expands, diaphragm drives plunger and moves to the closing direction of valve, until throttle down.
Claims (2)
1. metallic diaphragm wax thermodynamic component for automatic steam trap, its diaphragm seal (2), diaphragm (3) is the disc member, and diaphragm seal (2), diaphragm (3) is all coaxial with the axis (OO ') of upper casing (1), home position place at diaphragm seal (2) has a circular hole, the edge of diaphragm (3) is connected with the edge of the home position place circular hole of diaphragm seal (2), plunger (4) is installed in below the diaphragm (3), and coaxial with the axis (OO ') of upper casing (1), the edge of the lower casing of disc (5) is connected with the edge of upper casing (1), lower casing (5) is coaxial with the axis (OO ') of upper casing (1), it is characterized in that upper casing (1) be one the thickening near hemispherical member, home position place at lower casing (5) has a circular hole, the slightly larger in diameter of this circular hole is in the diameter of plunger (4), at upper casing (1) inwall and diaphragm seal (2), be filled with solid-state temperature sensitive wax (6) in the confined space that diaphragm (3) consists of.
2. metallic diaphragm wax thermodynamic component for automatic steam trap according to claim 1, it is characterized in that upper casing (1) and the mould punching moulding of lower casing (5) with respective shapes, the temperature sensitive wax liquid that high temperature dissolves is poured in the mould, obtain the solid-state responsive wax (6) of moulding through supercooling, with diaphragm seal (2), diaphragm (3), plunger (4) installs, fixing together with welding manner, consist of member (7), solid-state responsive wax (6) is placed between upper casing (1) and the member (7) and compresses remove redundance, then with welding manner upper casing (1) is fixedly connected with lower casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910117568 CN101818852B (en) | 2009-11-06 | 2009-11-06 | Metallic diaphragm wax thermodynamic component for automatic steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910117568 CN101818852B (en) | 2009-11-06 | 2009-11-06 | Metallic diaphragm wax thermodynamic component for automatic steam trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818852A CN101818852A (en) | 2010-09-01 |
| CN101818852B true CN101818852B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910117568 Expired - Fee Related CN101818852B (en) | 2009-11-06 | 2009-11-06 | Metallic diaphragm wax thermodynamic component for automatic steam trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818852B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196725Y (en) * | 1994-06-13 | 1995-05-10 | 何钢明 | Heat-sensitive type steam effluent valve |
| CN1162085A (en) * | 1996-03-15 | 1997-10-15 | Tlv有限公司 | Condensate discharging device |
-
2009
- 2009-11-06 CN CN 200910117568 patent/CN101818852B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196725Y (en) * | 1994-06-13 | 1995-05-10 | 何钢明 | Heat-sensitive type steam effluent valve |
| CN1162085A (en) * | 1996-03-15 | 1997-10-15 | Tlv有限公司 | Condensate discharging device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-278612A 2004.10.07 |
| JP特开平11-63389A 1999.03.05 |
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| Publication number | Publication date |
|---|---|
| CN101818852A (en) | 2010-09-01 |
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Granted publication date: 20130102 Termination date: 20151106 |
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