CN101818850B - Corrugated pipe pilot piston steam trap - Google Patents

Corrugated pipe pilot piston steam trap Download PDF

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Publication number
CN101818850B
CN101818850B CN200910117548A CN200910117548A CN101818850B CN 101818850 B CN101818850 B CN 101818850B CN 200910117548 A CN200910117548 A CN 200910117548A CN 200910117548 A CN200910117548 A CN 200910117548A CN 101818850 B CN101818850 B CN 101818850B
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CN
China
Prior art keywords
trap
valve
corrugated pipe
spool
steam trap
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.)
Expired - Fee Related
Application number
CN200910117548A
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Chinese (zh)
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CN101818850A (en
Inventor
李树勋
王朝富
徐登伟
李确
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Lanzhou University of Technology
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Lanzhou University of Technology
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Publication date
Application filed by Lanzhou University of Technology filed Critical Lanzhou University of Technology
Priority to CN200910117548A priority Critical patent/CN101818850B/en
Publication of CN101818850A publication Critical patent/CN101818850A/en
Application granted granted Critical
Publication of CN101818850B publication Critical patent/CN101818850B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a corrugated pipe pilot piston steam trap, which comprises a trap body, a trap cap and a trap plug. The trap body (11) is provided with the upper trap cap (1) and the trap plug (10). The inlet end I and the outlet end II of the trap body are respectively provided with pipe threads. A filter screen (8) is arranged in a lower oblique cavity of the inlet end I, and a winding gasket (9) and the trap plug (10) are used for tightly closing a lower port and fixing the filter screen (8). A trap base (6) is installed on an upper cavity of the trap body (11). A trap core (3) is arranged above the trap base (6) and the gap between the trap base (7) and the trap core (3) is provided with a piston (4). A hole in the trap core is connected with a drainage pipe (5). The upper end of the trap core (3) is provided with a trap mouth. A corrugated pipe assembly (13) is arranged on the trap base. The upper trap cap (1) is connected with the trap body (11) through threads.

Description

A kind of corrugated pipe pilot piston steam trap
Technical field
The present invention relates to a kind of Automatic steam trap Trap, relate in particular to a kind of corrugated pipe pilot piston steam trap that is applicable to big discharge capacity.
Background technique
Steam is as important secondary energy, and is essential at most industrial fields; Automatic steam trap Trap then is to ensure the vapour system proper functioning, the important self-powering type control type valve of energy saving.Along with development of science and technology, plant-scale continuous expansion; The Automatic steam trap Trap discharge capacity is required also more and more big, and bellow type Automatic steam trap Trap commonly used at present, though have regulate highly sensitive; Steady performance; Because it is less that bellows is opened displacement amplitude, thereby discharge capacity is also less, can't satisfy the usage requirement of big discharge capacity.
Summary of the invention
The object of the invention just is to overcome above-mentioned deficiency of the prior art, and a kind of corrugated pipe pilot piston steam trap that is applicable to big discharge capacity is provided, and has improved the ability of row's condensed water greatly.
In order to solve the technical problem of present existence; The invention provides a kind of corrugated pipe pilot piston steam trap; Comprise valve body, bonnet, valve plug, valve body 11 is provided with bonnet 1, valve plug 10, is equipped with pipe thread on the entrance point I of valve body 11 and the outlet end II; Filter screen 8 is arranged in the declivity cavity of valve entrance point I, with wrap style sealing gasket 9, valve plug 10 tightening seal lower end mouth and fixing filter screen 8; Valve seat 6 is installed in the upper cavity place of valve body 11, and spool 3 is installed above valve seat 6, and the space between valve seat 6 and spool 3 goes out to be provided with piston 4.In the hole of spool 3, be connected to drainage tube 5, be provided with valve nozzle, bellows component 13 is installed on the valve seat in the upper end of spool 3; Bonnet 1 adopts with valve body 11 and is threaded.
The present invention has combined bellows, and the advantage of piston adopts bellows component as the guide, under the effect of medium power, drives main valve plug through piston and moves open primary flow passage, thereby realized big discharge capacity; Adjusting of the present invention is highly sensitive, and stable performance is simple in structure, is used in the more pipe-line system of condensed water, helps the recycling of condensed water.
Description of drawings
Fig. 1 is a section of structure of the present invention, and Fig. 2 is a side view of the present invention, and Fig. 3 is a bellows component structural drawing of the present invention, and Fig. 4 is the structure plan view of fixed plate of the present invention.
Reference character and corresponding name are called: bonnet 1; Bellows 2; Main valve plug 3; Piston 4; Drainage tube 5; Valve seat 6; Fixed plate 7; Filter screen 8; Wrap style sealing gasket 9; Valve plug 10; Valve body 11; Spiral wound gasket 12; Bellows component 13; Support ring 14; Flap 15; Rigid support 16; Fixing frame 17.
Embodiment
As shown in Figure 1, corrugated pipe pilot piston steam trap of the present invention comprises valve body, bonnet, valve plug, and valve body 11 is provided with bonnet 1, valve plug 10, and the entrance point I and the outlet end II of valve body 11 are equipped with pipe thread; Filter screen 8 is arranged in the declivity cavity of valve entrance point I, with wrap style sealing gasket 9, valve plug 10 tightening seal lower end mouth and fixing filter screen 8; Valve seat 6 is installed in the upper cavity place of valve body 11, and spool 3 is installed above valve seat 6, and the space between valve seat 6 and spool 3 goes out to be provided with piston 4.In the hole of spool 3, be connected to drainage tube 5, be provided with valve nozzle, bellows component 13 is installed on the valve seat in the upper end of spool 3; Bonnet 1 adopts with valve body 11 and is threaded.Filter screen 8 is the stainless steel circle tube leaching net.
As shown in Figure 3, bellows component 13 is made up of flap 15, bellows 2, rigid support 16, fixing frame 17, support ring 14; Be welded with flap 15 at bellows 2 lower loops, top ring is welded with rigid support 16; Be provided with fixing frame 17 outside the bellows 2, fixing frame 17 upper ends and rigid support 16 weld together, and lower end and support ring 14 are integrally welded.
In Fig. 1,2,3: valve body 11 is the straight horizontal general formula, and valve body 11 is provided with bonnet 1, valve plug 10, and the entrance point I and the outlet end II of valve body 11 are equipped with pipe thread; Filter screen 8 is arranged in the declivity cavity of valve entrance point I, with wrap style sealing gasket 9, valve plug 10 tightening seal lower end mouth and fixing filter screen 8; Valve seat 6 is installed in the upper cavity place of valve body 11, employing be to be threaded fixingly, upper cavity, the outlet end II of the center hole of valve seat 6, valve body 11 connect; Spool 3 is installed above valve seat 6, and the space between valve seat 6 and spool 3 goes out to be provided with piston 4, and piston 4 welds together with spool 3; In the hole of spool 3, be connected to drainage tube 5, drainage tube 5 passes valve seat 6, fixed plate 7, is connected to the outlet end II of valve, and fixed plate 7 adopts spot welding to be connected with valve seat 6 and fixes, and effect is to prevent that drainage tube 5 is oversize, under the pressure of fluid, rocks; Upper end at spool 3 is provided with valve nozzle, and bellows component 13 is installed on the valve nozzle; Be provided with spiral wound gasket 12 between bonnet 1 and the valve body 11 and adopt and be threaded.Have four circular holes on the fixing frame 17, support ring 14 lower ends are provided with four strong points, and the groove of the strong point through valve nozzle below promptly is with fixing bellows component 13.
Valve seat 6 and contact seal place of spool 3 will be passed through grinding processing, and can guarantee security seal.
Working principle of the present invention is such: when drain valve was just opened, temperature was lower in the valve, and bellows 2 shrinks, and valve nozzle is in opening state, discharges cool air, condensed water in a large number; Along with increasing of steam, temperature raises in the valve, and bellows 2 expansions drive flap 15 and close valve nozzle.Condensed water in valve increases, and temperature reduces in the valve, and bellows 2 shrinks; Flap 15 is lifted off a seat, and valve is in opening state, and the condensed water of piston 4 epicoeles is discharged rapidly along drainage tube 5; Because piston 4 is less with the gap of inwall, the medium of piston 4 belows can not be full of epicoele immediately, causes the pressure of piston 4 epicoeles to descend rapidly; This moment under the pressure effect of piston 4 upper and lower cavities and spool 3 underparts, piston 4 by on push away, the spool 3 that is attached thereto also rises; Lift off a seat 6, condensed water through the hole on the valve seat 6 by a large amount of discharges; The condensed water discharging finishes, and the higher steam of temperature gets in the valve, and temperature rises in the valve; Bellows 2 expansions drive flap 15 and close valve nozzle, and along with medium gets into piston 4 epicoeles, the pressure of epicoele rises gradually; This moment, piston 4 drive spools 3 descended, and resealed valve seat 6.Above-mentioned course of action repeats, thereby reaches the hydrophobic purpose of choke.

Claims (5)

1. a corrugated pipe pilot piston steam trap comprises valve body, bonnet, valve plug, it is characterized in that: valve body (11) is provided with bonnet (1), valve plug (10), is equipped with pipe thread on the entrance point I of valve body and the outlet end II; Filter screen (8) is arranged in the declivity cavity of valve entrance point I, with wrap style sealing gasket (9), valve plug (10) tightening seal lower end mouth and fixing filter screen (8); Valve seat (6) is installed in the upper cavity place of valve body (11), in valve seat (6) top spool (3) is installed, and the gap between valve seat (6) and spool (3) is provided with piston (4); In the hole of spool (3), be connected to drainage tube (5), be provided with valve nozzle in the upper end of spool (3), bellows component (13) is installed on the valve seat, bellows component (13) is made up of flap (15), bellows (2), rigid support (16), fixing frame (17), support ring (14); Be welded with flap (15) at bellows (2) lower loop, top ring is welded with rigid support (16); The outer fixing frame (17) that is provided with of bellows (2), fixing frame (17) upper end welds together with rigid support (16), and lower end and support ring (14) are integrally welded; Bonnet (1) adopts with valve body (11) and is threaded.
2. corrugated pipe pilot piston steam trap according to claim 1 is characterized in that: filter screen (8) is the stainless steel circle tube leaching net.
3. corrugated pipe pilot piston steam trap according to claim 1 is characterized in that: what the upper cavity place of valve seat (6) and valve body (11) adopted is to be threaded.
4. corrugated pipe pilot piston steam trap according to claim 1 is characterized in that: spool (3) welds together with piston (4).
5. corrugated pipe pilot piston steam trap according to claim 1 is characterized in that: have four circular holes on the fixing frame (17), support ring (14) lower end is provided with four strong points.
CN200910117548A 2009-10-30 2009-10-30 Corrugated pipe pilot piston steam trap Expired - Fee Related CN101818850B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910117548A CN101818850B (en) 2009-10-30 2009-10-30 Corrugated pipe pilot piston steam trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910117548A CN101818850B (en) 2009-10-30 2009-10-30 Corrugated pipe pilot piston steam trap

Publications (2)

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CN101818850A CN101818850A (en) 2010-09-01
CN101818850B true CN101818850B (en) 2012-10-24

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112728393A (en) * 2021-01-18 2021-04-30 中科立得工业节能装备有限公司 Visual regulation ripple steam trap

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220519B1 (en) * 1999-11-01 2001-04-24 Watts Investment Company Sanitary steam trap
CN200982519Y (en) * 2006-11-16 2007-11-28 于德武 Concave type metal corrugated pipe steam hydrophobic valve
CN201096264Y (en) * 2007-10-17 2008-08-06 河南省高山阀门有限公司 Hot static force type steam bleeder
CN201187681Y (en) * 2008-05-15 2009-01-28 李生辉 Accurate seal corrugated tube type steam drain valve
CN201202960Y (en) * 2008-05-15 2009-03-04 李生辉 Y-shaped anti-return bellow-type steam drain valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220519B1 (en) * 1999-11-01 2001-04-24 Watts Investment Company Sanitary steam trap
CN200982519Y (en) * 2006-11-16 2007-11-28 于德武 Concave type metal corrugated pipe steam hydrophobic valve
CN201096264Y (en) * 2007-10-17 2008-08-06 河南省高山阀门有限公司 Hot static force type steam bleeder
CN201187681Y (en) * 2008-05-15 2009-01-28 李生辉 Accurate seal corrugated tube type steam drain valve
CN201202960Y (en) * 2008-05-15 2009-03-04 李生辉 Y-shaped anti-return bellow-type steam drain valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP平1-234697A 1989.09.19

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Granted publication date: 20121024

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