CN2041766U - Side sealing structure for fire grate - Google Patents
Side sealing structure for fire grate Download PDFInfo
- Publication number
- CN2041766U CN2041766U CN 88221221 CN88221221U CN2041766U CN 2041766 U CN2041766 U CN 2041766U CN 88221221 CN88221221 CN 88221221 CN 88221221 U CN88221221 U CN 88221221U CN 2041766 U CN2041766 U CN 2041766U
- Authority
- CN
- China
- Prior art keywords
- fire grate
- grate
- supporting
- utility
- model
- 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.)
- Withdrawn
Links
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model belongs to a component of a boiler fire grate (grate), in particular to a floating type side sealing structure for a fire grate, which mainly comprise side fire grate segments, a grate support frame, a support fender bracket and a floating type sealing plate. Because the utility model has stable optimum clearances and can realize reliable floating type sealing between the grate lateral face and the grate support frame which relatively move and have variable separation distance, the utility model can guarantee the normal running of the grate, prevent serious coal leakage and air excess, improve boiler efficiency, etc. Hence the utility model can be used for the structure of boiler grates, in particular for the side seal of reciprocating grates.
Description
The utility model belongs to the parts of boiler grate (or fire grate).Specifically a kind of floating type fire grate side seal structure that mainly comprises limit fire grate segment, furnace grate support, floating seal plate and its supporting and protecting frame.
Sealing between fire grate both sides and the furnace grate support (side seal) has important direct influence for the normal operation and the operating efficiency of boiler.At present, the side seal of reciprocal grate is generally adopted is the side seal structure that fixed side seal is promptly adopted the cast iron backplate to be set in to form the limit fire grate on the furnace grate support.This structure is in when assembling, leaves certain expansion slit according to the thermal expansion of fire grate between fire grate both sides and furnace grate support.But because boiler is when actual motion, be subjected to the load of thickness, boiler in the power of content, coking capacity of caloric value, the ash content of coal and coal seam and fire grate segment factor affecting such as distance, cause the actual overall expansion amount of fire grate to change and be difficult to determine apart from the high-temperature region, coal seam.Stuck in order to prevent fire grate, cause the blowing out accident and leave bigger above-mentioned slit, coal is serious with regard to causing inevitably Lou for this, air excess and produce burner, makes shortcomings such as boiler efficiency greatly reduces.What often adopt in addition is labyrinth type side seal structure.Though this structure makes moderate progress to the fire grate sealing condition, do not solve above-mentioned root problem yet.
" the chain fire-gate side-sealing device " by name that a kind of application number is CN88200266U disclosed in the Chinese patent gazette on August 17th, 1988.Its objective is the problem that solves the reliable side seal of traveling-grate stoker, formation is the sealing block that fixedly has seal groove on furnace grate support, and in its groove, be equipped with the movable block that contacts above the fire grate segment of limit and realize, weak point is can not be applicable to reciprocal grate and working face has certain relief fabric on other fire grate side seal.
The purpose of this utility model is to overcome the shortcoming and defect part in above-mentioned and a kind of floating type fire grate side seal structure of contacts side surfaces is provided.
The purpose of this utility model realizes by following structure: a kind of fire grate side seal structure, formed by main parts size by limit fire grate segment 1, furnace grate support 2, supporting and protecting frame 3 and floating seal plate 4.Special feature of the present utility model is that supporting and protecting frame 3 is fixed on the furnace grate support 2 of close limit fire grate segment 1, and an end of the floating seal plate 4 that is provided with between limit fire grate segment 1 and supporting and protecting frame 3 is supported by supporting and protecting frame 3 or is articulated and connected.Its supporting axis or hinge axes and fire grate parallel sided.Distolateral or the side of another of floating seal plate 4 then rides against on the side of limit fire grate segment 1.The center of gravity that special feature of the present utility model also is floating seal plate 4 between limit fire grate segment 1 and supporting axle center 5, be provided with near fire grate segment 1 place, limit and supporting and protecting frame 3 with floating seal plate 4 upper end cambered surfaces 6 corresponding be the protection arc top 7 in the center of circle with supporting axle center 5.
Accompanying drawing is the utility model example structure schematic diagram.
Illustrated embodiment further specifies the utility model in conjunction with the accompanying drawings: the supporting and protecting frame 3 of some connects by bolt or is weldingly fixed on above the furnace grate support 2.The shape of supporting and protecting frame 3 is that the side of corresponding sides fire grate segment 1 has groove, and the last medial surface of groove is the cambered surface (arc top 7) in the center of circle for the pin joint 5 with base angle under the groove, and the cambered surface opening part is a little more than limit fire grate segment 1 upper surface.The shape of the floating seal plate 4 between limit fire grate segment 1 and supporting and protecting frame 3 is provided with the cast iron groove of the upside outside of gusset for the cambered surface 6 on corresponding supporting and protecting frame 3 arcs top 7 in the middle of being; the base angle is articulated in pin joint 5 under the groove of the lower opening of its groove and supporting and protecting frame 3, and bottom land outside rides against the side of limit fire grate segment 1 on it.Making floating seal plate 4 do trace around hinged axle center 5 with the variation of expanding with heat and contract with cold of fire grate both sides swings.Thereby realized relatively moving and fire grate side that spacing changes and furnace grate support between reliable floating type sealing and stable desirable gap.
Floating seal plate 3 of the present utility model can be designed to multiple shape and structure according to above-mentioned unbalanced structural principle, as sliding, spring and edge roll-type etc.
The utility model has following advantage compared to existing technology:
1. realized reliable floating sealing and stable desirable gap, can guarantee the normal operation of fire grate and prevent from seriously leaking coal, air superfluous and improve boiler efficiency.
2. simple in structure, highly versatile are particularly useful for the side seal of reciprocal grate.
Claims (2)
1, a kind of fire grate side seal structure; formed by main parts size by limit fire grate segment 1, furnace grate support 2, supporting and protecting frame 3 and floating seal plate 4; it is characterized in that supporting and protecting frame 3 is fixed on the furnace grate support 2 of close limit fire grate segment 1; one end of the floating seal plate 4 that is provided with between limit fire grate segment 1 and supporting and protecting frame 3 is supported by supporting and protecting frame 3 or is articulated and connected; its supporting axis or hinge axes and fire grate parallel sided, another distolateral or side then rides against on the side of limit fire grate segment 1.
2, fire grate side seal structure according to claim 1; near fire grate segment 1 place, limit, be provided with corresponding with floating seal plate 4 upper end cambered surfaces 6 in the supporting and protecting frame 3 is the protection arc top 7 in the center of circle with supporting axle center 5 to the center of gravity that it is characterized in that floating seal plate 4 between limit fire grate segment 1 and supporting axle center 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88221221 CN2041766U (en) | 1988-12-15 | 1988-12-15 | Side sealing structure for fire grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88221221 CN2041766U (en) | 1988-12-15 | 1988-12-15 | Side sealing structure for fire grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2041766U true CN2041766U (en) | 1989-07-26 |
Family
ID=4853291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88221221 Withdrawn CN2041766U (en) | 1988-12-15 | 1988-12-15 | Side sealing structure for fire grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2041766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014667A1 (en) * | 2006-07-26 | 2008-02-07 | Dalian Boiler Works | Gas-injection boiler for oil field |
-
1988
- 1988-12-15 CN CN 88221221 patent/CN2041766U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014667A1 (en) * | 2006-07-26 | 2008-02-07 | Dalian Boiler Works | Gas-injection boiler for oil field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206308616U (en) | A kind of road and bridge guardrail fixing device | |
| CN100491882C (en) | Sintering machine wind box end sealing apparatus | |
| CN2787627Y (en) | Gravity automatic open-close type slab clamp | |
| CN2041766U (en) | Side sealing structure for fire grate | |
| CN1306192C (en) | Head and tail sealed active seal device with angle adjustable upper cover board for sintering machine | |
| CN201133767Y (en) | Sintering machine trolley bottom and air chest partition beam dynamic seal device | |
| CN202041082U (en) | Belt type machine air box end and partition sealing device | |
| CN101893378B (en) | Flexible sealing device of sintering machine | |
| CN2373643Y (en) | High-temperature resistant gas steel plate sluice valve | |
| CN204329607U (en) | Sintering machine adjustable-side sealing device | |
| CN212618419U (en) | Hot end radial sealing device capable of self-adapting to thermal deformation of air preheater rotor | |
| CN112524631A (en) | Long-life sealing device for rotary air preheater of thermal power boiler | |
| CN201059871Y (en) | Top sealing plate linkage rod supporting mechanism of sintering device air box end | |
| CN209558230U (en) | A kind of Intelligent windproof displaying street lamp | |
| CN2297643Y (en) | Damper for air-blower | |
| CN2722166Y (en) | Flexibly movable front and rear sealing device of sintering apparatus | |
| CN214120116U (en) | Long-life sealing device for rotary air preheater of thermal power boiler | |
| CN207229766U (en) | The air switch valve of conical seal (contact) face | |
| CN201059869Y (en) | Device for sealing sintering device air box end | |
| CN2937985Y (en) | Self-regulating head-tail sealing device of sintering machine | |
| CN214095523U (en) | Connecting rod type furnace door dead weight pressing device | |
| CN212620123U (en) | Furnace door pressing device | |
| CN2481989Y (en) | Banking and ash overflow device for small boiler | |
| CN211451983U (en) | Sealing piece mounting frame and sealing piece for air preheater | |
| CN215673723U (en) | Large-scale three-way valve plate structure capable of resisting high temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |