CN101509595A - Circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline - Google Patents
Circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline Download PDFInfo
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- CN101509595A CN101509595A CNA2009100033396A CN200910003339A CN101509595A CN 101509595 A CN101509595 A CN 101509595A CN A2009100033396 A CNA2009100033396 A CN A2009100033396A CN 200910003339 A CN200910003339 A CN 200910003339A CN 101509595 A CN101509595 A CN 101509595A
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Abstract
The invention relates to a circular plate bimetallic temperature-adjusting superheated steam drain valve. The steam drain valve is characterized in that that an inner cavity of a valve body (27) is provided with a filtering net (23), the valve body (27) is fixedly connected with a valve cover (4) by a B-level equilong double end stud (7), the valve cover (4) is connected with a valve bonnet (11). A screw hole is arranged at the bottom part of the inner cavity of the valve body (27), and a small head end of a valve seat (26) is connected with the screw hole. The outer diameter of the valve seat (26) is sheathed with a large spring (25), the inner holes of the large spring are provided with a support (22), the support (22) is internally provided with a valve core (2), a push rod (5), a support screw nut (20) in sequence, wherein, the push rod (5) is sheathed with a small spring (21). The support screw nut (20) is connected with the support (22), the inner hole of the support screw nut (20) is provided with a valve core shaft (17), the valve core shaft (17) is provided with a bimetallic strip (18). An adjusting bolt (10) is connected with an adjusting screw nut (14), and the adjusting screw nut (14) is connected with the valve cover (4). The steam drain valve of the invention features timely elimination of condensed water, high rate of back pressure, contribution to recovery of condensed water, elimination of air blocking and steam locking, agile and reliable movement, low noise and long service life.
Description
Technical field
The present invention relates to a kind of dual metal type drain valve, can satisfy superheated vapor pipeline eliminating water of condensation and non-condensable gas more specifically to a kind of, stop the usage requirement of steam leakage, and help a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline that water of condensation is recycled.
Background technique
At present, known flow rate circular plate dual metal type steam drain valve has two kinds, and a kind of is flow rate circular plate dual metal temperature mode, and another kind is the non-adjustable integral expression of flow rate circular plate dual metal temperature.Homemade flow rate circular plate dual metal temperature mode Automatic steam trap Trap just can not correct operation greater than 4.5MPaG at Maximum operating pressure, and the non-adjustable integral expression Automatic steam trap Trap of flow rate circular plate dual metal temperature just can not correct operation greater than 1.8MPaG in working pressure.
Summary of the invention
The technical problem to be solved in the present invention is: overcoming existing flow rate circular plate dual metal temperature mode Automatic steam trap Trap just can not correct operation greater than 4.5MPaG at Maximum operating pressure, the non-adjustable integral expression Automatic steam trap Trap of existing flow rate circular plate dual metal temperature working pressure greater than 1.8MPaG just can not correct operation defective, provide that a kind of range of working pressure is big, the circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline of the single valve seat cut-off type of stability and good reliability, self-alignment, automatic closing.
In order to solve the problems of the technologies described above, the present invention includes valve body, valve gap, bonnet, its characteristics are: a, the little head end of valve seat are connected with body cavity bottom screw, the valve seat external diameter is with big spring, the valve seat endoporus is equipped with support, the support endoporus is equipped with spool, push rod, support nut successively, be with little spring on the push rod external diameter, the support nut is threaded with support, the support nut inner hole is equipped with mandrel, bimetallic strip is housed on the mandrel, between per two bimetallic strips a pad is housed and separates, locate by E shape jump ring.Regulate bolt and be connected with adjusting nut, adjusting nut is connected with valve gap.The mandrel two ends are supported by support nut, adjusting bolt bore respectively.
The present invention can provide a kind of Automatic steam trap Trap that is applicable to that the superheated steam pipe line uses to the user, its operating pressure differential scope 0.01MPaG～6.5MPaG, TMA475 ℃ of Maximum allowable pressure PMA8.2MPaG/ Maximum allwable temperature, functional reliability height, simultaneously can in time get rid of water of condensation, the steam leakage loss is little, and Rate of load steam loss is zero, and the operating pressure scope is big, do not influence correct operation after the variation in pressure, the Rate of back pressure height helps water of condensation and reclaims, and can eliminate the stifled and steam vapour lock of air gas.Be active in one's movements, reliably, noise is little, long service life (greater than 16000 hours).Level is easy for installation, and all parts all are installed under the valve gap in the chamber, on pipeline, keep in repair easily, and beautiful shape, weight is lighter, the cost performance height.
Description of drawings
Below in conjunction with drawings and embodiments the present invention is described in further detail.
Fig. 1 is the structure cross-sectional schematic of a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline of the present invention.
Fig. 2 is for taking off the plan view behind the bonnet 11 among Fig. 1.
Fig. 3 is an A place enlarged view among Fig. 1.
Fig. 4 looks up enlarged view for Fig. 1 medium-height trestle 22.
Fig. 5 be among Fig. 4 B-B to sectional view.
Fig. 6 is air, low-temperature condensate, condensed water in high temperature, steam schematic representation in a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline cavity of the present invention.
Fig. 7 is in original state emptying gas schematic representation for spool 2 in the working principle of the present invention.
Fig. 8 is in original state row cold condensate schematic representation for spool 2 in the working principle of the present invention.
Fig. 9 is spool 2 closed condition schematic representation in the working principle of the present invention.
Figure 10 opens for spool in the working principle of the present invention 2, enters new recurrent state schematic representation.
Embodiment
In Fig. 1,2,3,4,5: valve body 27 inner chambers are equipped with 100 order filter screens 23, lining net 24 is filtered in spot welding, the water inlet 28 of valve body 27 and arranged on left and right sides, osculum 29 centers are on same axis, making water of condensation level turnover, valve body 27 intracavity bottoms be provided with the water outlet 31 that screw links to each other with osculum 29 communicates.3 sealings of wrap style sealing gasket are housed between valve body 27 and the valve gap 4, are connected by 4 isometric stud 7 of B level, nut 6 is fixing.Valve body 27, valve gap 4 are by high pressure P N100 design, adopt the 15CrMo forging, valve body 27 and valve gap 4 wall thickness and pressure rating meet the regulation of GB/T12224-2005 " steel valve fitness for purpose ", Maximum allowable pressure PMA8.2MPaG/, Maximum allwable temperature TMA475 ℃.Pad 9 sealings are housed between valve gap 4 and the bonnet 11, and employing is threaded, and valve gap 4 is a step through-hole, and label 12 is fixed on above the bonnet 11 by rivet 13.Valve seat 26 profiles are step-like, and its little head end is threaded with valve body 27 intracavity bottom screws, and valve seat 26 is a step through-hole, and closed hole 30 is 60 ° of taper holes.Valve seat 26 external diameters are with big spring 25, and valve seat 26 inner chambers are equipped with support 22, and support 22 is a step through-hole, its profile is step-like, supported by spring 25, support 22 microcephalies hold and are equipped with 4 tanks 32 excessively on the circumference, and support 22 upper-end surfaces are equipped with 4 water inlets 33 and communicate with mistake tank 32.Support 22 endoporus are equipped with spool 2, push rod 5, support nut 20 successively.Spool 2 profiles are step-like, and 60 ° of taper holes that its top is the closed hole 30 of 60 ° of conical surfaces and valve seat 26 inner chambers match.Push rod 5 external diameters are with little spring 21, and support nut 20 is threaded with support 22.Support nut 20 inner chambers are equipped with mandrel 17, and bimetallic strip 18 is housed on the mandrel 17, between per two bimetallic strips 18 pad 8 are housed and separate, by E shape jump ring 19 location.It is step-like regulating bolt 10, and its little head end is provided with screw thread and is threaded with adjusting nut 14, and adjusting nut 14 is threaded with valve gap 4, and by sealing gasket 16, pad 15 sealings, mandrel 17 two ends are supported by support nut 20, adjusting bolt 10 endoporus respectively.The effect of regulating bolt 10 is: the distance of regulating moving circle spool 2 of bolt 10 revolutions and valve seat 26 sealing surfaces changes a pitch 1.5mm, equals the total deformation that 9 groups of (18) bimetallic strip 18 temperature differ 20 ℃, and the corresponding Temperature at discharging condensate of regulating differs 20 ℃.During use according to the working pressure at user scene and set Opening valve temperature and will regulate bolt 10 and adjust to the corresponding adjustment number of turns.
Working principle of the present invention is such: after Automatic steam trap Trap is installed on the pipeline, start working automatically as Fig. 6,7,8,9,10 signal.Under the normal temperature, bimetallic strip 18 is flattened state, makes valve seat 26 be opening state when beginning to lead to vapour, and the air and the water of condensation of low temperature discharged (seeing accompanying drawing 7) rapidly.Temperature raises in the valve, and spool 2 moves down under bimetallic strip 18 metamorphosiss, but still is full of by water in the valve body 27, and valve seat 26 still is opening state, and the lower temperature water of condensation continues discharging (seeing accompanying drawing 8).When the lower temperature water of condensation drained, the higher temperature water of condensation strengthened bimetallic strip 18 distortion, forces spool 2 to move down and closes valve seat 26 (seeing accompanying drawing 9).Along with temperature in the valve reduces, bimetallic strip 18 distortion reduce, and spring I25 valve opening force is greater than closing valve power (power that picks and the pressure medium sums of bimetallic strip 18 distortion), and drive spool 2 rising opening water discharges enter new circulation work automatically (seeing accompanying drawing 10).
In sum, it is 2mm that the present invention has adopted spool 2 shutoff strokes, and the gap of moving about is the new self-alignment of 0.5mm, automatic closing mechanism device (being anti abrasive new SCCV shutdown system).New SCCV closing mechanism device is that the little spring 21 of 2mm is formed by valve seat 26, spool 2 and the compression stroke of 60 ° of conical surface seals mainly, when the power that picks of bimetallic strip 18 distortion during greater than the elastic force of big spring 25, spool 2 moves down, soft contact valve seat 26, under the flowing medium active force, self-alignment, tight closing valve seat 26 automatically.New SCCV shutdown system can compensate the error that closing mechanism device produces automatically, produce rigid collision when avoiding closing, make spool 2 in closing closed procedure, have buffer function, the wearing and tearing of spool 2 and valve seat 26 have been reduced, increase the service life, close all very reliably after drain valve uses initial stage and wearing and tearing, and switch motion is very sensitive, at pressure reduction less than also can regular event under the 0.01MPaG.The present invention has adopted new self-alignment, automatically closing mechanism device and new warm mode mechanism can guarantee that the long-term switch motion of drain valve is correctly reliable in 0.01MPaG～6.5MPaG operating pressure differential scope.Be the single valve seat conical surface cut-off type, self-alignment of a kind of pressure height, stability and good reliability, the circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline of closing automatically.
Claims (5)
1, a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline comprises valve body (27), valve gap (4), bonnet (11), it is characterized in that:
A, valve body (27) inner chamber are equipped with filter screen (23), and lining net (24) is filtered in spot welding, and the water inlet (28) of valve body (27) and arranged on left and right sides, osculum (29) center are on same axis; Valve body (27) intracavity bottom is provided with the water outlet (31) that screw links to each other with osculum (29) and communicates; Valve body (27) is connected by the isometric stud of B level (7) with valve gap (4), and nut (6) is fixing, and valve gap (4) adopts with bonnet (11) and is threaded;
B, the little head end of valve seat (26) are connected with valve body (27) intracavity bottom screw, and valve seat (26) external diameter is with big spring (25), and valve seat (26) endoporus is equipped with support (22), and support (22) endoporus is equipped with spool (2), push rod (5), support nut (20) successively; Be with little spring (21) on push rod (5) external diameter, support nut (20) is threaded with support (22); Support nut (20) endoporus is equipped with mandrel (17), and bimetallic strip (18) is housed on the mandrel (17), a pad (8) is housed between per two bimetallic strips (18) separates, and is located by E shape jump ring (19); Regulate bolt (10) and be connected with adjusting nut (14), adjusting nut (14) is connected with valve gap (4); Mandrel (17) two ends are supported by support nut 20, adjusting bolt 10 endoporus respectively.
2, a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline according to claim 1 is characterized in that: valve seat (26) is a step through-hole, and closed hole (30) is 60 ° of taper holes; Valve seat (26) profile is step-like.
3, a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline according to claim 1 is characterized in that: spool (2) profile is step-like, and its top is 60 ° of conical surfaces.
4, a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline according to claim 1 is characterized in that: regulate bolt (10) for step-like, its little head end is provided with screw thread and is connected with adjusting nut (14), and adjusting nut (14) is connected with valve gap (4).
5, a kind of circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline according to claim 1 is characterized in that: support (22) is a step through-hole, and its profile is step-like, is supported by spring (25); Support (22) microcephaly holds and was equipped with tank (32) on the circumference; Support (22) upper-end surface is equipped with water inlet (33) and communicates with mistake tank (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100033396A CN101509595A (en) | 2009-01-15 | 2009-01-15 | Circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100033396A CN101509595A (en) | 2009-01-15 | 2009-01-15 | Circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline |
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| CN101509595A true CN101509595A (en) | 2009-08-19 |
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| CNA2009100033396A Pending CN101509595A (en) | 2009-01-15 | 2009-01-15 | Circular plate dual-metal temperature-adjusting stema-trap for overheat stean pipeline |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914074A (en) * | 2012-11-09 | 2013-02-06 | 江苏元升太阳能集团有限公司 | Thermal bimetal-plate overheating protective device of solar thermal system |
| CN103196028A (en) * | 2013-04-02 | 2013-07-10 | 甘肃红峰机械有限责任公司 | Steam trap with temperature-adjusting high-pressure round-plate dual metal sheets |
| CN108591813A (en) * | 2018-06-09 | 2018-09-28 | 成都凯天电子股份有限公司 | Differential pressure type steam trap |
| CN112197161A (en) * | 2020-10-10 | 2021-01-08 | 济南高瓴机械科技有限公司 | Multifunctional steam trap |
-
2009
- 2009-01-15 CN CNA2009100033396A patent/CN101509595A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914074A (en) * | 2012-11-09 | 2013-02-06 | 江苏元升太阳能集团有限公司 | Thermal bimetal-plate overheating protective device of solar thermal system |
| CN102914074B (en) * | 2012-11-09 | 2014-07-30 | 江苏元升太阳能集团有限公司 | Thermal bimetal-plate overheating protective device of solar thermal system |
| CN103196028A (en) * | 2013-04-02 | 2013-07-10 | 甘肃红峰机械有限责任公司 | Steam trap with temperature-adjusting high-pressure round-plate dual metal sheets |
| CN108591813A (en) * | 2018-06-09 | 2018-09-28 | 成都凯天电子股份有限公司 | Differential pressure type steam trap |
| CN112197161A (en) * | 2020-10-10 | 2021-01-08 | 济南高瓴机械科技有限公司 | Multifunctional steam trap |
| CN112197161B (en) * | 2020-10-10 | 2021-07-27 | 立信阀门集团有限公司 | Multifunctional steam trap |
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Open date: 20090819 |