CN107387776A - A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler - Google Patents
A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler Download PDFInfo
- Publication number
- CN107387776A CN107387776A CN201710578630.0A CN201710578630A CN107387776A CN 107387776 A CN107387776 A CN 107387776A CN 201710578630 A CN201710578630 A CN 201710578630A CN 107387776 A CN107387776 A CN 107387776A
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- valve body
- cavity
- turbo
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000008439 repair process Effects 0.000 abstract description 2
- 241000233855 Orchidaceae Species 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
- F22B37/545—Valves specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
Abstract
The present invention proposes a kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler.Including valve body and flap, valve body and flap are tightly connected firmly by cone torus, and described hard part in sealing contact uses antifriction metal (AFM) overlaying structure；The flap afterbody of flap bottom is a square bulge-structure, and the valve body of flap bottom has one to lead to outside cavity；The exit of cavity is connected by end cap flange seal；The diameter of bore of cavity is more than the maximum outside diameter of flap.The present invention has the advantages that：Contact surface position is formed using antifriction metal (AFM) built-up welding, and rub proofness is stronger, meets the work requirements of valve, life of valve can be improved, increase operational reliability, do not have to during maintenance integrally pull down valve, directly open bonnet and take out flap and flap is repaired, also instrument can be put in valve body, grinding valve contact level, repairs relative ease, and flap afterbody uses squared design, gripping flap is easier to and will not damage flap, favorably promotes the use of.
Description
Technical field：
The present invention relates to Naval Boiler technical field, specifically a kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler.
Background technology：
As the hydrophobic headstock gear of boiler blow-off, whether the use reliability of valve will well directly affect the normal of drainage
Operation, blowoff valve is located at the bottom of boiler, and the characteristics of based on Turbo-charged Marine Boiler, bottom blowoff valve has that operating space is narrow and small,
Harsh environmental conditions, situations such as high temperature, high humidity, once breaking down, maintenance work is extremely difficult, needs blowing out and pot during maintenance
Stove discharges water, and directly affects the mobility and security of boiler, totally unfavorable to boiler operatiopn；
During Test And Trials interior the problems such as leaking, maintenance and dimension repeatedly occur for common Turbo-charged Marine Boiler bottom blowoff valve
It is big to protect workload, due to boatman's boiler rigorous service condition, impurities in water accumulates clamping stagnation easily at sealing surface, destroys sealing surface；
Common flap is not easy to remove during grinding seal surface, and work consuming takes.
The content of the invention：
In order to solve the above problems, the present invention provides a kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler.
The technical scheme is that：A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler, including medium entrance method
Orchid, handwheel devices, valve rod, media outlet flange, valve body and flap, valve body and flap are tightly connected firmly by cone torus, institute
The hard part in sealing contact stated uses antifriction metal (AFM) overlaying structure, wherein, the resurfacing welding material that flap built-up welding contact surface uses for
EDCoCrB, the resurfacing welding material that valve body built-up welding contact surface uses is EDCoCrA；
The flap afterbody of described flap bottom is a square bulge-structure, and the valve body of flap bottom has one outside
The cavity in portion；
The valve body of described flap bottom has an exit for leading to outside cavity to be connected by end cap flange seal；
The valve body of described flap bottom has one to lead to outside cavity, and the diameter of bore of cavity is more than outside the maximum of flap
Footpath.
The present invention has the advantages that：The contact surface of flap and valve body is the key position for controlling medium channel, is connect
Contacting surface position is formed using antifriction metal (AFM) built-up welding, and rub proofness is stronger, and material is satisfied by the work requirements of valve, can improve valve
In the life-span, increase operational reliability, can not have to during maintenance integrally pull down valve, directly open bonnet, flap is taken out, to valve
Valve is repaired, and instrument can also be put in valve body, and grinding valve contact level repairs relative ease, and flap afterbody is set using square
Meter, when flap is taken out in maintenance, gripping flap is easier to and will not damage flap, favorably promotes the use of.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is flap portion partial structural diagram in the present invention；
Accompanying drawing 3 is the structural representation of flap in the present invention；
Accompanying drawing 4 is the upward view of accompanying drawing 3.
1- medium entrances flange in figure, 2- handwheel devices, 3- valve rods, 4- media outlet flanges, 5- valve bodies, 6- flaps, 7-
End cap, 8- flap built-up welding contact surfaces, 9- flap afterbodys, 10- valve body built-up welding contact surfaces.
Embodiment：
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1 combinations Fig. 2~Fig. 4, a kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler, including medium entrance flange
1st, handwheel devices 2, valve rod 3, media outlet flange 4, valve body 5 and flap 6, valve body 5 and flap 6 pass through the cone torus company of sealing firmly
Connecing, described hard part in sealing contact uses antifriction metal (AFM) overlaying structure, wherein, the heap wlding that flap built-up welding contact surface 8 uses
Expect that for EDCoCrB, built-up welding hardness HRC39 ~ 46, rub proofness is stronger, the resurfacing welding material that valve body built-up welding contact surface 10 uses for
EDCoCrA, material are satisfied by the work requirements of valve, can improve life of valve, increase operational reliability；
The flap afterbody 9 of the described bottom of flap 6 is a square bulge-structure, and flap afterbody 9 designs squarely, can made
Flap afterbody 9 is clamped with instrument to take out flap 6, flap is not worn during taking-up, and the valve body 5 of the bottom of flap 6 has one
It is individual to lead to outside cavity；
The valve body 5 of the described bottom of flap 6 has an exit for leading to outside cavity to be connected by the flange seal of end cap 7；
The valve body 5 of the described bottom of flap 6 has one to lead to outside cavity, and the diameter of bore of cavity is more than the maximum of flap 6
External diameter, flap 6 can be taken out by the cavity from bottom.
Handwheel devices 2 are rotated, valve rod 3 drives flap 6 to move down, and flap 6 separates with the contact surface of valve body 5, now bottom
Blowoff valve is open mode, and medium is from boiler furnace header by medium entrance flange 1, the upper space of flap 6, media outlet method
Orchid 4 flows out blowoff valve and enters blow-off line.
The contact surface of flap 6 and valve body 5 is the key position for controlling medium channel, and contact surface position uses antifriction metal (AFM) heap
Weldering forms, and valve body contact surface build-up welding material is EDCoCrA built-up welding hardness HRC39 ~ 46, and rub proofness is stronger, valve flap contacts face heap
Wlding material is EDCoCrB, and material is satisfied by the work requirements of valve, can improve life of valve, increases operational reliability.
Blowoff valve is located at the bottom of boiler, and the characteristics of based on Turbo-charged Marine Boiler, bottom blowoff valve has operating space narrow
Small, harsh environmental conditions, situations such as high temperature, high humidity, once breaking down, maintenance work is extremely difficult, such a bottom blowoff valve
It can not have to integrally pull down valve, directly open bonnet, flap is taken out, flap is repaired, instrument can also be put in
Valve body, grinding valve contact level, relative ease is repaired, flap afterbody uses squared design, when flap is taken out in maintenance, grips flap
It is easier to and flap will not be damaged.
Claims (1)
1. a kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler, including medium entrance flange（1）, handwheel devices（2）, valve rod
（3）, media outlet flange（4）, valve body（5）And flap（6）, it is characterised in that：Valve body（5）And flap（6）Pass through cone torus
Hard to be tightly connected, described hard part in sealing contact uses antifriction metal (AFM) overlaying structure, wherein, flap built-up welding contact surface（8）Adopt
Resurfacing welding material is EDCoCrB, valve body built-up welding contact surface（10）The resurfacing welding material used is EDCoCrA；
Described flap（6）The flap afterbody of bottom（9）For a square bulge-structure, flap（6）The valve body of bottom（5）
There is one to lead to outside cavity；
Described flap（6）The valve body of bottom（5）There is an exit for leading to outside cavity to pass through end cap（7）Flange seal
Connection；
Described flap（6）The valve body of bottom（5）There is one to lead to outside cavity, the diameter of bore of cavity is more than flap（6）
Maximum outside diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710578630.0A CN107387776A (en) | 2017-07-17 | 2017-07-17 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710578630.0A CN107387776A (en) | 2017-07-17 | 2017-07-17 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387776A true CN107387776A (en) | 2017-11-24 |
Family
ID=60339840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710578630.0A Pending CN107387776A (en) | 2017-07-17 | 2017-07-17 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387776A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355551A (en) * | 2017-08-29 | 2017-11-17 | 四川固特阀门制造有限公司 | Inverse formula opens and closes cut-out cock |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0612876U (en) * | 1992-07-21 | 1994-02-18 | 三郎 半田 | Gate valve with conical valve seat |
| CN2231741Y (en) * | 1995-06-15 | 1996-07-24 | 刘树范 | Autobalance stop valve with changeable valve seat |
| CN1379199A (en) * | 2002-01-07 | 2002-11-13 | 王洪福 | Reverse on-off valve for cut-off regulation or throttling |
| CN2527794Y (en) * | 2001-11-26 | 2002-12-25 | 王洪福 | Reverse opening/closing stop valve |
| CN202203421U (en) * | 2011-09-08 | 2012-04-25 | 浙江凯瑞特阀业有限公司 | Needle-shaped stop valve |
| CN202790585U (en) * | 2012-09-08 | 2013-03-13 | 环球阀门集团有限公司 | Erosion-resistant small-caliber forged steel stop valve |
| EP2811211A2 (en) * | 2013-06-07 | 2014-12-10 | Kabushiki Kaisha Toshiba | Valve apparatus and method of manufacturing the same |
| CN204248822U (en) * | 2014-11-10 | 2015-04-08 | 中国石油天然气股份有限公司 | Pneumatic valve extracting tool |
| CN206958271U (en) * | 2017-07-17 | 2018-02-02 | 中国船舶重工集团公司第七0三研究所 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
-
2017
- 2017-07-17 CN CN201710578630.0A patent/CN107387776A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0612876U (en) * | 1992-07-21 | 1994-02-18 | 三郎 半田 | Gate valve with conical valve seat |
| CN2231741Y (en) * | 1995-06-15 | 1996-07-24 | 刘树范 | Autobalance stop valve with changeable valve seat |
| CN2527794Y (en) * | 2001-11-26 | 2002-12-25 | 王洪福 | Reverse opening/closing stop valve |
| CN1379199A (en) * | 2002-01-07 | 2002-11-13 | 王洪福 | Reverse on-off valve for cut-off regulation or throttling |
| CN202203421U (en) * | 2011-09-08 | 2012-04-25 | 浙江凯瑞特阀业有限公司 | Needle-shaped stop valve |
| CN202790585U (en) * | 2012-09-08 | 2013-03-13 | 环球阀门集团有限公司 | Erosion-resistant small-caliber forged steel stop valve |
| EP2811211A2 (en) * | 2013-06-07 | 2014-12-10 | Kabushiki Kaisha Toshiba | Valve apparatus and method of manufacturing the same |
| CN204248822U (en) * | 2014-11-10 | 2015-04-08 | 中国石油天然气股份有限公司 | Pneumatic valve extracting tool |
| CN206958271U (en) * | 2017-07-17 | 2018-02-02 | 中国船舶重工集团公司第七0三研究所 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355551A (en) * | 2017-08-29 | 2017-11-17 | 四川固特阀门制造有限公司 | Inverse formula opens and closes cut-out cock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201326823Y (en) | Corrugated pipe stop valve for chlorine | |
| CN104315175B (en) | Gate valve and its manufacture craft | |
| CN206958271U (en) | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler | |
| CN107387776A (en) | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler | |
| WO2020038008A1 (en) | High-performance nano-coated corrugated-tube special chlorine gas valve | |
| CN101225886A (en) | Regulating valve special for chlorine | |
| CN204985801U (en) | Eccentric V -arrangement ball valve | |
| CN105587872B (en) | Floating spherical cap type angle valve | |
| CN205207741U (en) | Automatic electrical heating ball valve | |
| CN204922067U (en) | Eccentric hemisphere valve of upper assembling type | |
| CN101806364A (en) | Maintenance-free corrugated tube valve special for chlorine | |
| CN101169139B (en) | Ultra-high temperature high pressure three-way change-over valve core | |
| US1951037A (en) | Blow-off valve | |
| CN205908789U (en) | Ceramic hemisphere valve of two off -centre | |
| CN213332386U (en) | Hard sealing blowoff valve | |
| CN208348553U (en) | A kind of plug valve | |
| CN206572002U (en) | A kind of high temperature expansion valve | |
| CN101225885A (en) | Fluoroplastics whole lining stop valve special for alkali-chloride | |
| CN106015622A (en) | Double-eccentricity ceramic hemispherical valve | |
| CN206592362U (en) | A kind of screw thread inserting type Fill valve | |
| CN207569249U (en) | A kind of high steam pipeline copper valve deck | |
| CN204387477U (en) | Bellows ball valve | |
| CN206786018U (en) | A kind of valve sealing structure | |
| CN219774806U (en) | Prevent rotatory stop valve of valve clack | |
| CN203309233U (en) | High-temperature spring full lift safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20171124 |