CN105276596A - Sealing device for sampling hole of boiler flue - Google Patents
Sealing device for sampling hole of boiler flue Download PDFInfo
- Publication number
- CN105276596A CN105276596A CN201410231136.3A CN201410231136A CN105276596A CN 105276596 A CN105276596 A CN 105276596A CN 201410231136 A CN201410231136 A CN 201410231136A CN 105276596 A CN105276596 A CN 105276596A
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- CN
- China
- Prior art keywords
- thieff hatch
- sealing device
- boiler flue
- unlatching
- seal cover
- 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.)
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- Pipe Accessories (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to the technical field of boiler flue sampling, and discloses a sealing device for a sampling hole of a boiler flue. The sealing device comprises a sampling hole pipe and a sealing cover connected with the sampling hole pipe in a matched way, wherein a plurality of bumps which are arranged at intervals are arranged on the outer wall of a pipe orifice of the sampling hole pipe; a plurality of grooves adapted to the bumps are formed in the inner wall of the sealing cover; each groove is provided with a first vertical rail, a second vertical rail and an inclined rail along the inner wall of the groove from a lower port of the sealing cover; the two ends of the inclined rails are in smooth transition connection with the first and second vertical rails respectively; when the sealing cover is connected with the sampling hole pipe in a sealing way, the bumps clockwise rotate to the inclined rails along the first vertical rails of the grooves, and are finally locked on the second vertical rails of the grooves. According to the sealing device, the sampling hole in the boiler flue can be normally opened to smoothly sample smoke and flue gas.
Description
Technical field
The present invention relates to boiler flue Sampling techniques field, particularly relate to a kind of sealing device for boiler flue thieff hatch.
Background technology
In the performance of precipitator test of power plant, operating personnel need to carry out flue dust, flue gas sampling at the flue place, gateway of deduster equipment, need the thieff hatch at the flue place, gateway of deduster equipment to open during sampling, in the equipment test such as boiler load, deduster, the normal unlatching of thieff hatch is the key link of experiment work.The fixing major part employing of existing thieff hatch and thieff hatch seal cover is threaded or Flange joint fixes sealing, when not opening for a long time, thieff hatch seal cover can issue in the effect of high-temperature flue gas (dirt) and erosion the erosion and be difficult to open of getting rusty, waste time and energy in opening process, not only need to consume manpower, time and bolt looseness agent etc., and often must employ cutting tool carry out destructiveness open, the unlatching difficulty of thieff hatch adds the labour intensity of operating personnel, has put off test period and has been unfavorable for carrying out smoothly of experiment work.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention how normally to open the thieff hatch at boiler flue place, to carry out the sampling work of flue dust, flue gas smoothly.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of sealing device for boiler flue thieff hatch, the seal cover comprising thieff hatch pipe and be connected with described thieff hatch pipe, the mouth of pipe outer wall of described thieff hatch pipe be circumferentially provided with multiple spaced apart projection, the inwall of described seal cover is provided with the groove that multiple and described projection adapts, described groove is provided with the first vertical rail from the lower port of described seal cover along its inwall, second vertical rail and inclined plane, the two ends of described inclined plane are connected smoothly with described first vertical rail and the second vertical rail respectively, when described seal cover is connected with the thieff hatch seal of tube, describedly project through clockwise turn and move to described inclined plane and finally stuck on the second vertical rail of described groove along the first vertical rail of described groove.
Wherein, described groove is that N font is arranged.
Wherein, the top of described seal cover is provided with unlatching auxiliary block, and described unlatching auxiliary block is provided with opens power-assisted hole.
Wherein, described unlatching power-assisted hole is vertically arranged along the length direction of described unlatching auxiliary block.
Wherein, also comprise unlatching assister bar, described unlatching assister bar passes through to insert in described unlatching power-assisted hole, for auxiliary opening encapsulation lid.
Wherein, described multiple projection is distributed on the mouth of pipe outer wall of described thieff hatch pipe circumferentially.
Wherein, the quantity of described projection is four, and correspondingly the quantity of described groove is also four.
Wherein, the inner top surface of described seal cover is provided with sealing gasket.
(3) beneficial effect
Compared with prior art, the present invention has the following advantages:
A kind of sealing device for boiler flue thieff hatch provided by the invention, by arranging multiple spaced apart projection at the mouth of pipe outer wall of described thieff hatch pipe, and on the inwall of described seal cover, be provided with the groove that multiple and described projection adapts, and described groove is arranged to the first vertical rail of connecting in turn along the inwall of seal cover, inclined plane and the second vertical rail, can be facilitated by seal cover described in turn, reliably realize the opening and closing of thieff hatch, solve the problem that thieff hatch is difficult to open, improve deduster, the medium flue dust of boiler load performance test, the operating efficiency of flue gas sampling.
Accompanying drawing explanation
Fig. 1 is the structural front view of a kind of sealing device for boiler flue thieff hatch of the present invention;
Fig. 2 is the structure left view of a kind of sealing device for boiler flue thieff hatch of the present invention;
Fig. 3 be a kind of sealing device for boiler flue thieff hatch of the present invention and thieff hatch pipe in conjunction with schematic diagram.
In figure: 1: seal cover; 2: open auxiliary block; 3: groove; 4: open power-assisted hole; 5: protruding; 6: thieff hatch pipe; 7: open assister bar; 8: sealing gasket; 9: the terminal rail of groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
In describing the invention, it should be noted that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In addition, in describing the invention, except as otherwise noted, the implication of " multiple ", " many ", " many groups " is two or more.
As depicted in figs. 1 and 2, for a kind of sealing device for boiler flue thieff hatch provided by the invention, the seal cover 1 comprising thieff hatch pipe 6 and be connected with described thieff hatch pipe 6, the mouth of pipe outer wall of described thieff hatch pipe 6 be circumferentially provided with multiple spaced apart protruding 5, described protruding 5 can be latching, the inwall of described seal cover 1 is provided with multiple and described protruding 5 grooves adapted 3, such as, the width of described groove 3 and the degree of depth will match with the described width of protruding 5 and length, described groove 3 is provided with the first vertical rail from the lower port of described seal cover 1 along its inwall, second vertical rail and inclined plane, the two ends of described inclined plane are connected smoothly with one end of described first vertical rail and the second vertical rail respectively, described protruding 5 can smoothly by the bending part of groove 3 to facilitate, when described seal cover 1 is tightly connected with thieff hatch pipe 6, described protruding 5 move to described inclined plane and the end of final stuck the second vertical rail at described groove by clockwise turn along the first vertical rail of described groove 3, thus being tightly connected both realizing, described groove 3 is preferably arranged in N font, when thieff hatch opened by needs, upwards mention described seal cover 1, make the bending part that described protruding 5 are in the N font track of described groove 3, and be rotated counterclockwise and upwards mention seal cover 1 again and can open, can facilitate, reliably realize the opening and closing of thieff hatch thus, solve the problem that thieff hatch is difficult to open, improve the operating efficiency of deduster, the medium flue dust of boiler load performance test, flue gas sampling.
The top of described seal cover 1 is provided with opens auxiliary block 2, described unlatching auxiliary block 2 is provided with opens power-assisted hole 4, described unlatching power-assisted hole 4 is vertically arranged along the length direction of described unlatching auxiliary block 2, when run into thieff hatch because of for a long time need not and clog time, as shown in Figure 3, can insert in described unlatching power-assisted hole 4 by unlatching assister bar 7, described unlatching assister bar 7 is pulled out for the described seal cover 1 of auxiliary unlatching from the both sides of described unlatching assister bar 7, realize the convenient and swift unlatching of flue thieff hatch, to solve the problem that thieff hatch is difficult to open.
In order to the optimization of structure and the convenience of use, preferably, described multiple protruding 5 the mouth of pipe outer wall of described thieff hatch pipe 6 is distributed on circumferentially.For the ease of arranging, the described quantity of protruding 5 is preferably four, and correspondingly the quantity of described groove 3 is also four.
The inner top surface of described seal cover 1 is provided with sealing gasket 8, for realizing described seal cover 1 and the sealing of thieff hatch pipe 6, leaks to have prevented flue dust or flue gas.
The operating procedure of the present invention when reality uses is: first the opening of N font groove 3 is aimed at corresponding projection 5 on described thieff hatch pipe 6, first bending part that downward compression makes described protruding 5 to move to described groove 3, and seal cover 1 described in clockwise direction turn, make described protruding 5 to move to second bending part along the inclined plane of the N font of described groove 3 and continue to rotate until the described protruding 5 stuck terminal rails 9 at N font groove, with being tightly connected of both realizations, in the present invention, with the bending part of the N font of process successively of turning clockwise described first bending part of regulation and the second bending part, when seal cover 1 taken apart by needs, first upwards mention second bending part making described protruding 5 to slide into described groove 3, and be rotated counterclockwise described seal cover 1, make described protruding 5 to be moved upwards up to first bending part along the inclined plane of described groove 3 and upwards mention the opening making described protruding 5 to slip away described groove 3 along the vertical rail of described groove 3, final realize both separation, as run into thieff hatch blocking, can insert in described unlatching power-assisted hole 4 by unlatching assister bar 7 and helping afterburning unlatching.
The present invention devises the shape of groove 3 dexterously, makes seal cover 1 and thieff hatch can realize like a cork opening and closing, solves the problem that thieff hatch is difficult to open.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the sealing device for boiler flue thieff hatch, the seal cover comprising thieff hatch pipe and be connected with described thieff hatch pipe, it is characterized in that, the mouth of pipe outer wall of described thieff hatch pipe is provided with multiple spaced apart projection, the inwall of described seal cover is provided with the groove that multiple and described projection adapts, described groove is provided with the first vertical rail from the lower port of described seal cover along its inwall, second vertical rail and inclined plane, the two ends of described inclined plane are connected smoothly with described first vertical rail and the second vertical rail respectively, when described seal cover is connected with the thieff hatch seal of tube, describedly project through clockwise turn and move to described inclined plane and finally stuck on the second vertical rail of described groove along the first vertical rail of described groove.
2. as claimed in claim 1 for the sealing device of boiler flue thieff hatch, it is characterized in that, described groove is that N font is arranged.
3. as claimed in claim 1 for the sealing device of boiler flue thieff hatch, it is characterized in that, the top of described seal cover is provided with unlatching auxiliary block, and described unlatching auxiliary block is provided with opens power-assisted hole.
4., as claimed in claim 3 for the sealing device of boiler flue thieff hatch, it is characterized in that, described unlatching power-assisted hole is vertically arranged along the length direction of described unlatching auxiliary block.
5. as claimed in claim 4 for the sealing device of boiler flue thieff hatch, it is characterized in that, also comprise unlatching assister bar, described unlatching assister bar passes through to insert in described unlatching power-assisted hole, for the described seal cover of auxiliary unlatching.
6., as claimed in claim 1 for the sealing device of boiler flue thieff hatch, it is characterized in that, described multiple projection is distributed on the mouth of pipe outer wall of described thieff hatch pipe circumferentially.
7., as claimed in claim 6 for the sealing device of boiler flue thieff hatch, it is characterized in that, the quantity of described projection is four, and correspondingly the quantity of described groove is also four.
8., as claimed in claim 1 for the sealing device of boiler flue thieff hatch, it is characterized in that, the inner top surface of described seal cover is provided with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231136.3A CN105276596B (en) | 2014-05-28 | 2014-05-28 | A kind of sealing device for boiler flue thieff hatch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231136.3A CN105276596B (en) | 2014-05-28 | 2014-05-28 | A kind of sealing device for boiler flue thieff hatch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105276596A true CN105276596A (en) | 2016-01-27 |
| CN105276596B CN105276596B (en) | 2018-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410231136.3A Active CN105276596B (en) | 2014-05-28 | 2014-05-28 | A kind of sealing device for boiler flue thieff hatch |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19709070A1 (en) * | 1997-03-06 | 1998-09-10 | Bruno Lampka | Method for sealing connection hole in cylindrical chimney pipe |
| CN201568981U (en) * | 2010-01-10 | 2010-09-01 | 胡绍翔 | Joint of smoke exhaust pipe |
| EP2581637A2 (en) * | 2011-10-10 | 2013-04-17 | Dieter Bächle | Closure cap for closing an inspection opening on a plastic waste gas pipe, exhaust pipe and system with a closure cap |
| CN203224374U (en) * | 2013-04-09 | 2013-10-02 | 国家电网公司 | Seal cover of boiler flue sampling hole |
| CN203223923U (en) * | 2013-04-09 | 2013-10-02 | 国家电网公司 | Snap fastener type seal cover for flue sampling hole |
| CN203497480U (en) * | 2013-09-14 | 2014-03-26 | 沧州中渤重工机械装备有限公司 | Novel anti-theft metering hole |
| CN204006054U (en) * | 2014-05-28 | 2014-12-10 | 国网山西省电力公司电力科学研究院 | A kind of sealing device for boiler flue thieff hatch |
-
2014
- 2014-05-28 CN CN201410231136.3A patent/CN105276596B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19709070A1 (en) * | 1997-03-06 | 1998-09-10 | Bruno Lampka | Method for sealing connection hole in cylindrical chimney pipe |
| CN201568981U (en) * | 2010-01-10 | 2010-09-01 | 胡绍翔 | Joint of smoke exhaust pipe |
| EP2581637A2 (en) * | 2011-10-10 | 2013-04-17 | Dieter Bächle | Closure cap for closing an inspection opening on a plastic waste gas pipe, exhaust pipe and system with a closure cap |
| CN203224374U (en) * | 2013-04-09 | 2013-10-02 | 国家电网公司 | Seal cover of boiler flue sampling hole |
| CN203223923U (en) * | 2013-04-09 | 2013-10-02 | 国家电网公司 | Snap fastener type seal cover for flue sampling hole |
| CN203497480U (en) * | 2013-09-14 | 2014-03-26 | 沧州中渤重工机械装备有限公司 | Novel anti-theft metering hole |
| CN204006054U (en) * | 2014-05-28 | 2014-12-10 | 国网山西省电力公司电力科学研究院 | A kind of sealing device for boiler flue thieff hatch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105276596B (en) | 2018-05-08 |
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