CN103615557A - Boiler feed water regulating valve - Google Patents
Boiler feed water regulating valve Download PDFInfo
- Publication number
- CN103615557A CN103615557A CN201310652758.9A CN201310652758A CN103615557A CN 103615557 A CN103615557 A CN 103615557A CN 201310652758 A CN201310652758 A CN 201310652758A CN 103615557 A CN103615557 A CN 103615557A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve cage
- hard alloy
- overlaid
- spool
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a boiler feed water regulating valve which comprises a valve body, a valve cage and a valve core. The valve cage comprises a valve cage upper part and a valve cage base. Overlaid hard alloy is arranged at the easily abraded position of the valve cage base. Furthermore, overlaid hard alloy is arranged at the easily abraded position of the valve core. Due to the fact that the overlaid hard alloy is arranged at the easily abraded position of the valve cage base and the hard alloy has extremely high hardness, strength, abrasion resistance and corrosion resistance, the service life of the valve cage base can be prolonged, the environmental sealing performance is better, and leakage or pressure loss does not occur easily. Furthermore, due to the fact that the overlaid hard alloy is arranged at the easily abraded position of the valve core, the service life of the valve core can be prolonged.
Description
Technical field
The present invention relates to boiler feedwater control valve, especially a kind of boiler feedwater control valve.
Background technique
Boiler feedwater control valve is a kind of for regulating the equipment of boiler feedwater flow and pressure.By the folding of boiler feedwater control valve, control boiler internal pressure and boiler water level.In moving process, between spool and valve cage, having friction, easily weares and teares and does not reach seal request in junction, and because boiler internal environment is all generally high temperature and high pressure environment, wear phenomenon can be more serious.This wearing and tearing can affect sealing and the working life of boiler, cause existing boiler feedwater control valve after using very short time, just to need to change.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of boiler feedwater control valve of longer service life.
The present invention solves the boiler feedwater control valve that its technical problem adopts, and comprises valve body, valve cage and spool, and described valve cage comprises valve cage top and valve cage pedestal; The easily-worn position place of described valve cage pedestal is provided with the cemented carbide of built-up welding.
Further, the easily-worn position place of described spool is provided with the cemented carbide of built-up welding.
The invention has the beneficial effects as follows: due to boiler feedwater control valve of the present invention, at the easily-worn position place of valve cage pedestal, be provided with the cemented carbide of built-up welding, cemented carbide has very high hardness, intensity, wear resistance and corrosion resistance, therefore can extend its working life, better in environment lower seal performance, be difficult for occurring to leak or the pressure loss.Further, at the easily-worn position place of described spool, be provided with the cemented carbide of built-up welding, can extend the working life of spool.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of valve cage in Fig. 1;
Fig. 3 is the schematic diagram of spool in Fig. 1;
Shown in figure: the easily-worn position of 101-valve body, 102-valve cage pedestal, 103-valve cage top, 104-actuator, 110-spool, 111-spool, the easily-worn position of 112-valve cage pedestal.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1, Figure 2 and Figure 3, boiler feedwater control valve of the present invention, comprises valve body 101, valve cage and spool 110, and described valve cage comprises valve cage top 103 and valve cage pedestal 102; Easily-worn position 112 places of described valve cage pedestal 102 are provided with the cemented carbide of built-up welding.When needs regulate boiler internal pressure and/or water level, the position of actuator's 104 regulating spools 110, to realize closure or openness modulating valve, in the process of above-mentioned closure or openness modulating valve, between spool 110 and valve cage, have friction, the position being easily worn is the easily-worn position 112 of valve cage pedestal 102 and the easily-worn position 111 of spool 110.At easily-worn position 112 places of described valve cage pedestal 102, be provided with the cemented carbide of built-up welding, because cemented carbide has very high hardness, intensity, wear resistance and corrosion resistance, therefore can extend the working life of valve cage pedestal 102, thereby extend the working life of whole boiler feedwater control valve.
Because the easily-worn position 111 of spool 110 is also easily worn and causes sealability bad, therefore, in order further to extend the working life of whole boiler feedwater control valve, easily-worn position 111 places of described spool 110 are provided with the cemented carbide of built-up welding.
Claims (2)
1. a boiler feedwater control valve, comprises valve body (101), valve cage and spool (110), it is characterized in that: described valve cage comprises valve cage top (103) and valve cage pedestal (102); The easily-worn position (112) of described valve cage pedestal (102) locates to be provided with the cemented carbide of built-up welding.
2. boiler feedwater control valve as claimed in claim 1, is characterized in that: the easily-worn position (111) of described spool (110) locates to be provided with the cemented carbide of built-up welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652758.9A CN103615557A (en) | 2013-12-05 | 2013-12-05 | Boiler feed water regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652758.9A CN103615557A (en) | 2013-12-05 | 2013-12-05 | Boiler feed water regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103615557A true CN103615557A (en) | 2014-03-05 |
Family
ID=50166270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310652758.9A Pending CN103615557A (en) | 2013-12-05 | 2013-12-05 | Boiler feed water regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615557A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2849359Y (en) * | 2005-10-28 | 2006-12-20 | 天津精通控制仪表技术有限公司 | High performance cage regulating valve |
| CN202171006U (en) * | 2011-06-16 | 2012-03-21 | 伯特利阀门集团有限公司 | Abrasion-proof and scouring-proof stop valve |
| JP2012145130A (en) * | 2011-01-07 | 2012-08-02 | Ihara Science Corp | Piston valve |
| CN202884084U (en) * | 2012-11-05 | 2013-04-17 | 中国石油天然气股份有限公司长庆石化分公司 | Temperature and pressure reducer adjusting valve |
| CN202914778U (en) * | 2012-11-22 | 2013-05-01 | 浙江贝尔控制阀门有限公司 | High temperature sleeve adjustment valve |
-
2013
- 2013-12-05 CN CN201310652758.9A patent/CN103615557A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2849359Y (en) * | 2005-10-28 | 2006-12-20 | 天津精通控制仪表技术有限公司 | High performance cage regulating valve |
| JP2012145130A (en) * | 2011-01-07 | 2012-08-02 | Ihara Science Corp | Piston valve |
| CN202171006U (en) * | 2011-06-16 | 2012-03-21 | 伯特利阀门集团有限公司 | Abrasion-proof and scouring-proof stop valve |
| CN202884084U (en) * | 2012-11-05 | 2013-04-17 | 中国石油天然气股份有限公司长庆石化分公司 | Temperature and pressure reducer adjusting valve |
| CN202914778U (en) * | 2012-11-22 | 2013-05-01 | 浙江贝尔控制阀门有限公司 | High temperature sleeve adjustment valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140305 |