CN203686193U - High-temperature-resistant rigidity seal rapidly-closed door - Google Patents
High-temperature-resistant rigidity seal rapidly-closed door Download PDFInfo
- Publication number
- CN203686193U CN203686193U CN201420018988.XU CN201420018988U CN203686193U CN 203686193 U CN203686193 U CN 203686193U CN 201420018988 U CN201420018988 U CN 201420018988U CN 203686193 U CN203686193 U CN 203686193U
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- Prior art keywords
- closed
- high temperature
- temperature resistant
- hard sealing
- resistant hard
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims description 43
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a high-temperature-resistant rigidity seal rapidly-closed door which comprises a shell, an upper circular joint, a lower circular joint, a cylinder, a main shaft, a crank, a rocker arm, a valve plate and a valve seat. The high-temperature-resistant rigidity seal rapidly-closed door is connected with a coal mill inlet cold air pipeline or a coal mill inlet hot air pipeline through transition of the upper circular joint and the lower circular joint. The main shaft is rapidly pushed by the crank to rotate by 90 degrees in the clockwise direction, namely, the closing direction, or in the anticlockwise direction, namely, the opening direction, under thrust or pull force of a cylinder rod. The main shaft rotates to drive the valve plate to move through the rocker arm, so that the valve plate and the valve seat are attached tightly or separated, the effect of isolating media in the pipeline or enabling the media in the pipeline to be circulated is achieved, and the functions of being simple in structure, free of leakage and dust accumulation and short in opening and closing time are achieved. After the high-temperature-resistant rigidity seal rapidly-closed door is rapidly closed, the temperature inside a coal mill is 40 DEG C or lower, safe running of a boiler is ensured, and repair work of the coal mill is smoothly completed.
Description
Technical field
The utility model relates to station boiler subsidiary engine, particularly relates to a kind of high temperature resistant hard sealing and closes the door soon.
Background technique
High temperature resistant hard sealing is closed the door soon, claims again high temperature resistant butterfly valve, and it is the important supplementary equipment of boiler, is installed on the hot and cold air channel of heat power plant boiler and needs in shutoff fast isolated occasion, particularly coal pulverizer import heat primary air road.
Coal pulverizer is one of Important Auxiliary equipment of boiler, and safety and stability, the economical operation of its reliability on boiler has important impact.Coal pulverizer work under bad environment, be in operation and unavoidably there will be various faults, for the service work that guarantees coal pulverizer in unit operation is carried out safely and reliably, must a wind cold of coal pulverizer will be entered, hot blast is quick, reliably and closely isolate, especially hot blast, and a wind is cold, hot blast adjustment doors is normally not bery tight, so wind isolation door of coal pulverizer must be set specially, this not only can play the effect of safety isolation in the time that coal pulverizer overhauls, also can in the time that normally stopping, playing by coal pulverizer tight buffer action, have influence on the safe operation of coal pulverizer and boiler to prevent primary air flow from revealing excessive.
But, tradition hot air isolating door is generally pneumatic single inserting board type isolating door and flashboard type isolation door etc., that traditional pneumatic single inserting board type isolating door exists is poorly sealed, the soft packing seal problems such as easily aging, opening and closing time is long, and flashboard type isolation door complex structure, high, the easy dust stratification of rate of fault need additionally install the problems such as soot blowing system additional.
Because the problem that above-mentioned existing traditional hot air isolating door exists, practical experience and the professional knowledge of the inventor based on being engaged in this type of product specification manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, close the door soon to the high temperature resistant hard sealing of founding a kind of new structure, can solve the problem that existing traditional hot air isolating door exists, make it have more practicability.Through constantly research, design, and after repeatedly studying sample and improving, finally create the utility model having practical value.
Summary of the invention
The purpose of this utility model is to overcome existing traditional hot air isolating door in structure and the defect that uses existence, and provides a kind of high temperature resistant hard sealing to close the door soon.
The purpose of this utility model is to adopt following technological scheme to realize.A kind of high temperature resistant hard sealing of the utility model is closed the door soon, it is characterized in that it comprises: housing; Top round knot, is fixed on housing; Below round knot with top round knot is oppositely arranged, is fixed on housing; Cylinder, is connected with housing; Main shaft, two ends are connected on the circumference of housing; Crank, is connected in one end of cylinder and main shaft; Rocking arm, is connected in the centre of main shaft; Valve plate, is connected in rocking arm; And valve seat, be fixed on housing.
Object of the present invention also can be applied to the following technical measures to achieve further.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and wherein said valve seat is Cast Steel.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and the potted line of wherein said valve plate and valve seat faying surface is complete circle sealing.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and wherein said cylinder comprises: cylinder column and air cylinder support; This cylinder column connecting crank, this air cylinder support connects housing.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and the sense of rotation of wherein said main shaft is clockwise 90 ° or counterclockwise 90 ° of directions.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and the external diameter of wherein said valve plate is greater than the internal diameter of valve seat, and the faying surface build-up wear-resistant alloy material of valve plate and valve seat is hard sealing.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, wherein more comprises: retaining ring and absorption cover, this retaining ring is fixed on housing, is provided with stainless steel and absorbs cover between this retaining ring and this valve seat.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and wherein said main shaft position adopts shaft seal.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and the mode that wherein said valve plate opens and closes is pneumatic mode.
Preferably, aforesaid high temperature resistant hard sealing is closed the door soon, and the mode that wherein said valve plate opens and closes also comprises: manual or electronic mode.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, hard sealing that the utility model is high temperature resistant is closed the door soon and is at least had following advantages and beneficial effect: simple in structure, zero reveal, short, the long service life of dust stratification, opening and closing time not, close the door soon after quick closedown in high temperature resistant hard sealing, coal-grinding built-in temperature is below 40 ℃, guarantee the safe operation of boiler, and the completing smoothly of coal pulverizer service work.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the plan view that high temperature resistant hard sealing of the present utility model is closed the door soon.
Fig. 2 is the plan view that high temperature resistant hard sealing of the present utility model is closed the door soon.
[primary component symbol description]
1: air cylinder support 2: cylinder
3: top round knot 4: cylinder column
5: crank 6: rocking arm
7: valve plate 8: retaining ring
9: absorb cover 10: valve seat
11: main shaft 12: shaft seal
13: below round knot 14: housing
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to close the door soon according to the high temperature resistant hard sealing of one the utility model proposes its embodiment, structure, feature and effect thereof, be described in detail as follows.
Refer to Fig. 1, high temperature resistant hard sealing is closed the door and is comprised soon: housing 14; Top round knot 3 and below round knot 13, cylinder 2, main shaft 11, crank 5, rocking arm 6, valve plate 7 and valve seat 10.
Close the door soon top round knot 3 and below round knot 13 of high temperature resistant hard sealing is oppositely arranged, and is welded to connect with housing 14, and transition by top round knot 3 and below round knot 13 and coal pulverizer inlet cold air duct or hot air duct carry out reinforcement of weld; Cylinder 2 is welded to connect by air cylinder support 1 and quick closing valve door shell body 14, is connected with crank 5 by cylinder column 4; The thrust of cylinder column 4 or pulling force, promote fast main shaft 11 by crank 5 and carry out clockwise (pass direction) 90 ° or counterclockwise (evolution to) 90 ° of rotations, main shaft 11 is connected with valve plate 7 by rocking arm 6, the rotation of main shaft 11 is by rocking arm 6 and then drive valve plate 7 to move, realize valve plate 7 and reach with fitting tightly of valve seat 10 effect that completely cuts off pipeline internal medium, or realize the separation of the two, to reach the effect that allows pipeline internal medium circulate.
As shown in Figure 1, the special wear resistant alloy material of faying surface built-up welding of valve plate 7 and valve seat 10, for hard sealing, and through machinings such as car mills, thereby guarantee the leakproofness of sealing surface, wherein the potted line of valve plate 7 and valve seat 10 faying surfaces is complete circle sealing, and valve seat 10 is Cast Steel, the open and close of this valve plate can be completed by manual, pneumatic, electronic, but mainly adopt pneumatic mode.And between retaining ring 8 and valve seat 10 that housing 14 welds together, have the absorption cover 9 of stainless steel, effectively heat-absorbing deformation difference, guarantees the sealability of cold and hot lower valve.
Refer to Fig. 2, shaft seal 12 is taked at main shaft 11 positions, and feature high temperature resistant, selflubricating that this shaft seal has, can not only guarantee the normal work that high temperature resistant hard sealing is closed the door soon, and can effectively prevent that the race that high temperature resistant hard sealing passes into medium in closing the door soon from leaking, improve work on the spot environment.
Calculating this high temperature resistant hard sealing by space analysis how much closes the door and the motion of whole mechanism soon, guarantee that external diameter is greater than the valve plate 7 of valve seat 10 internal diameters, can complete the motions such as upset, slippage, locking, the functions such as implementation structure is simple, zero reveal, dust stratification, opening and closing time be not short, close the door soon after quick closedown in high temperature resistant hard sealing, coal-grinding built-in temperature, below 40 ℃, guarantees the safe operation of boiler, and the completing smoothly of coal pulverizer service work.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a high temperature resistant hard sealing is closed the door soon, it is characterized in that it comprises:
Housing (14);
Top round knot (3), is fixed on housing (14);
With the below round knot (13) that top round knot (3) is oppositely arranged, be fixed on housing (14);
Cylinder (2), is connected with housing (14);
Main shaft (11), two ends are connected on the circumference of housing (14);
Crank (5), is connected in one end of cylinder (2) and main shaft (11);
Rocking arm (6), is connected in the centre of main shaft (11);
Valve plate (7), is connected in rocking arm (6); And
Valve seat (10), is fixed on housing (14).
2. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that this valve seat (10) is Cast Steel.
3. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that this valve plate (7) and the potted line of valve seat (10) faying surface are complete circle sealing.
4. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that this cylinder (2) comprising: cylinder column (4) and air cylinder support (1); This cylinder column connecting crank (5), this air cylinder support connects housing (14).
5. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, and the sense of rotation that it is characterized in that this main shaft (11) is clockwise 90 ° or counterclockwise 90 ° of directions.
6. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that the external diameter of this valve plate (7) is greater than the internal diameter of valve seat (10), and the faying surface build-up wear-resistant alloy material of valve plate (7) and valve seat (10), is hard sealing.
7. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that it more comprises: retaining ring (8) and absorption cover (9), it is upper that this retaining ring is fixed in housing (14), is provided with stainless steel and absorbs cover (9) between this retaining ring (8) and this valve seat (10).
8. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that this main shaft (11) position adopts shaft seal (12).
9. high temperature resistant hard sealing as claimed in claim 1 is closed the door soon, it is characterized in that the mode that this valve plate (7) opens and closes is pneumatic mode.
10. high temperature resistant hard sealing as claimed in claim 9 is closed the door soon, it is characterized in that the mode that this valve plate (7) opens and closes also comprises: manual or electronic mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018988.XU CN203686193U (en) | 2014-01-13 | 2014-01-13 | High-temperature-resistant rigidity seal rapidly-closed door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018988.XU CN203686193U (en) | 2014-01-13 | 2014-01-13 | High-temperature-resistant rigidity seal rapidly-closed door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686193U true CN203686193U (en) | 2014-07-02 |
Family
ID=51008093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420018988.XU Expired - Lifetime CN203686193U (en) | 2014-01-13 | 2014-01-13 | High-temperature-resistant rigidity seal rapidly-closed door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851215A (en) * | 2014-01-13 | 2014-06-11 | 洛阳广盈机械设备有限公司 | High temperature resistance hard sealing quickly-closed door |
| CN106439066A (en) * | 2016-12-08 | 2017-02-22 | 福州麦辽自动化设备有限公司 | Equal-flow gap type inlet-outlet based on lever transmission |
| CN106499834A (en) * | 2016-12-08 | 2017-03-15 | 福州麦辽自动化设备有限公司 | One kind waits flow clearance type to import and export based on worm geared |
-
2014
- 2014-01-13 CN CN201420018988.XU patent/CN203686193U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851215A (en) * | 2014-01-13 | 2014-06-11 | 洛阳广盈机械设备有限公司 | High temperature resistance hard sealing quickly-closed door |
| CN106439066A (en) * | 2016-12-08 | 2017-02-22 | 福州麦辽自动化设备有限公司 | Equal-flow gap type inlet-outlet based on lever transmission |
| CN106499834A (en) * | 2016-12-08 | 2017-03-15 | 福州麦辽自动化设备有限公司 | One kind waits flow clearance type to import and export based on worm geared |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |