CN203837958U - Flue sampling hole sealing cover - Google Patents
Flue sampling hole sealing cover Download PDFInfo
- Publication number
- CN203837958U CN203837958U CN201420266652.5U CN201420266652U CN203837958U CN 203837958 U CN203837958 U CN 203837958U CN 201420266652 U CN201420266652 U CN 201420266652U CN 203837958 U CN203837958 U CN 203837958U
- Authority
- CN
- China
- Prior art keywords
- thieff hatch
- flue
- gland bonnet
- inner sleeve
- side arms
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 238000005070 sampling Methods 0.000 title abstract description 15
- 210000004907 gland Anatomy 0.000 claims description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 239000010881 fly ash Substances 0.000 description 4
- 239000003500 flue dust Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model relates to the technical field of boiler flue sampling and discloses a flue sampling hole sealing cover. The flue sampling hole sealing cover comprises a sampling hole tube and a sealing cover body which is in fit connection with the sampling hole tube, the sealing cover body comprises a cover body, an inner bushing, an outer bushing and a lifting handle, wherein the inner bushing and the outer bushing extend downward along the cover body and are arranged coaxially, and the lifting handle is arranged on the cover body; a gap for holding the sampling hole tube remains between the inner bushing and the outer bushing, two side arms of the lifting handle downward extend into the inner bushing and are capable of moving relatively, a locating pin is connected with the end of each of the side arms, the two locating pins are arranged oppositely and connected together through a spring, an interval remains between the locating pins, a locating hole is formed in the inner wall of the inner bushing, a locating slot is formed in the inner wall of the sampling hole tube, and the locating pins can pass through the locating hole to insert in the locating slot. By means of the flue sampling hole sealing cover, the sampling hole in the boiler flue can be opened and closed easily, and the labor intensity of the worker is alleviated.
Description
Technical field
The utility model relates to boiler flue Sampling techniques field, particularly relates to a kind of flue thieff hatch gland bonnet.
Background technology
In the performance test such as fly-ash separator, desulphurization and denitration of power plant, operating personnel need to carry out flue dust, flue gas sampling at flue place, the gateway of the equipment such as fly-ash separator, desulphurization and denitration, when sampling, the thieff hatch at flue place, gateway need to be opened.Existing thieff hatch major part is to fix sealing with bolt, nut, when unlatching, will use the instruments such as spanner, wastes time and energy; And the time grown corrosion often can occur, be difficult to open, need to use bolt looseness agent etc., thereby increase operating personnel's labour intensity, be unfavorable for carrying out smoothly of experiment work.
Utility model content
(1) technical matters that will solve
How unfavorable with the thieff hatch on the light opening and closing boiler flue of instrument the technical problems to be solved in the utility model is, alleviates operating personnel's labour intensity.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of flue thieff hatch gland bonnet, the gland bonnet that comprises thieff hatch pipe and be connected with described thieff hatch pipe, described gland bonnet comprises lid and the inner sleeve and the outer tube that also coaxially arrange along described lid to downward-extension respectively and is located in the handle on described lid, between described inner sleeve and outer tube, leave the gap that holds described thieff hatch pipe, two side arms of described handle extend into downwards in described inner sleeve, and two described side arms can relatively move under external force, the end of two described side arms is connected with respectively register pin, two described register pins are oppositely arranged and leave spacing between the two, and link together by spring, the inwall of described inner sleeve is provided with pilot hole, the inwall of described thieff hatch pipe is provided with locating slot, described register pin can be plugged in described locating slot through described pilot hole.
Wherein, on described lid, be respectively equipped with for two through holes that described side arm passes.
Wherein, the outer face of described register pin is arcwall face, and the inside surface of described locating slot is the arcwall face matching with described arcwall face.
Wherein, on described register pin, be provided with sealing gasket with corresponding described pilot hole junction.
Wherein, the bottom of described inner sleeve is provided with the flue gas dividing plate adapting with the caliber size of described inner sleeve, and described flue gas dividing plate is positioned at the below of described pilot hole.
Wherein, two described side arms weld with corresponding described register pin respectively.
(3) beneficial effect
Compared with prior art, the utlity model has following advantage:
A kind of flue thieff hatch gland bonnet that the utility model provides, adopt the double-decker of gland bonnet being arranged to comprise inner sleeve and outer tube, between described inner sleeve and outer tube, leave the gap that thieff hatch pipe is installed, and be equipped with handle on described lid, two side arms of described handle extend into downwards in described inner sleeve, and two described side arms can relatively move, the end of two described side arms is connected with respectively register pin, two described register pins are oppositely arranged and leave spacing between the two, and link together by spring, the inwall of described inner sleeve is provided with pilot hole, the inwall of described thieff hatch pipe is provided with locating slot, described register pin can be plugged in described locating slot through described pilot hole, can drive register pin to shrink by Compress Spring, thereby gland bonnet can be extracted from thieff hatch pipe, realize the convenient and swift unlatching of thieff hatch, solve the problem that thieff hatch is difficult to open, improve fly-ash separator, desulfurization, flue dust in the performance tests such as denitration, the work efficiency of flue gas sampling.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of flue thieff hatch of the utility model gland bonnet.
In figure: 1: thieff hatch pipe; 2: gland bonnet; 21: lid; 22: outer tube; 23: inner sleeve; 3: handle; 31: side arm; 4: spring; 5: register pin; 6: pilot hole; 7: flue gas dividing plate; 8: locating slot; 9: sealing gasket; 10: through hole.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following instance is used for illustrating the utility model, but is not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 1, a kind of flue thieff hatch gland bonnet providing for the utility model, the gland bonnet 2 that comprises thieff hatch pipe 1 and be connected with described thieff hatch pipe 1, described gland bonnet 2 comprises lid 21 and the inner sleeve 23 and the outer tube 22 that also coaxially arrange along described lid 21 to downward-extension respectively, between described inner sleeve 23 and outer tube 22, leave the gap that holds described thieff hatch pipe 1, described thieff hatch pipe 1 directly can be nested in the inner sleeve 23 of described gland bonnet 2 and the gap of outer tube 22 thus, realize being connected between the two, described gland bonnet 2 also comprises the handle 3 being located on described lid 21, described handle 3 comprises the support bar of horizontally set and is located at respectively the side arm 31 at described support bar two ends, two side arms 31 of described handle 3 extend into downwards in described inner sleeve 23, on described lid 21, be respectively equipped with for two described side arms 31 through the through hole 10 that also can relatively move, described relatively move comprise mutually near or mutually away from, the length direction of described through hole 10 is towards the direction of two described side arm 31 relative motion trend, the end of two described side arms 31 is connected with respectively register pin 5, two described register pins 5 are oppositely arranged and leave spacing between the two, and link together by spring 4, the inwall of described inner sleeve 23 is provided with pilot hole 6, the inwall of described thieff hatch pipe 1 is provided with locating slot 8, described register pin 5 can be plugged in described locating slot 8 through described pilot hole 6, in the time pinching two described side arms 31, two described side arms 31 are mutually close by the length direction along described through hole 10, compress described spring 4 simultaneously, described spring 4 drives described register pin 5 to shrink, described register pin 5 leaves described locating slot 8 and pilot hole 6, now gland bonnet 2 can be extracted from thieff hatch pipe 1, to carry out dependence test work, realize the convenient and swift unlatching of thieff hatch, solved the problem that thieff hatch is difficult to open.
For the optimization of structure, preferably, the outer face of described register pin 5 is set to arcwall face, and the inside surface of described locating slot 8 is arranged to the arcwall face matching with described arcwall face, be connected with the neat fit of locating slot 8 to realize described register pin 5, to reach good sealing effectiveness.
For further lift-off seal effect, sealing gasket 9 that preferably can be closely connected with described pilot hole 6 with corresponding described pilot hole 6 junctions settings on two described register pins 5, described sealing gasket 9 is fixedly sleeved on described register pin 5, the two ends of described spring 4 are fixedly connected on respectively the inner side of described sealing gasket 9, by the contraction of described spring 4, thereby drive described register pin 5 to shrink, realize the unlatching of thieff hatch.
In order to stop that flue gas directly enters in gland bonnet 2, the bottom of described inner sleeve 23 is provided with the flue gas dividing plate 7 adapting with the caliber size of described inner sleeve 23, and described flue gas dividing plate 7 is positioned at the below of described pilot hole 6.
Preferably, two described side arms 31 weld with corresponding described register pin 5 respectively, to realize being fixedly connected with between the two.
Described handle 3 adopts the material with sufficient intensity and toughness to make, and as alloy steel etc., two described side arms 31 from top to bottom distance between the two reduce gradually, with convenient, pinch it effortlessly and carry out Compress Spring 4.
Use procedure of the present utility model is: when sealing thieff hatch, first pinch two side arms 31 of handle 3, make its length direction along through hole 10 mutually close, thereby band is dynamically connected, the spring 4 of two described register pins 5 shrinks, two described register pins 5 are followed described spring 4 and are shunk together thus, now, aiming at thieff hatch pipe 1 inserts the lower end of gland bonnet 2 in described thieff hatch pipe 1, after loosing one's grip, spring 4 automatically springs open, drive register pin 5 to pass and push locating slot 8 from pilot hole 6, sealing gasket 9 on described register pin 5 and the inwall close contact of thieff hatch pipe 1, can realize the self-locking of gland bonnet 2, realize the sealing of thieff hatch,
In the time that needs are opened thieff hatch, pinch two side arms 31 of handle 3, make its length direction along through hole 10 mutually close, thereby band is dynamically connected, the spring 4 of two described register pins 5 shrinks, two described register pins 5 are followed described spring 4 and are shunk together thus, and leave described locating slot 8 and pilot hole 6, now lift described handle 3, drive gland bonnet 2 to leave described thieff hatch pipe 1, realize thieff hatch and open.
The utility model passes through structural design cleverly, has realized the convenient and swift unlatching of thieff hatch, has solved the problem that thieff hatch is difficult to open, and has improved the work efficiency of flue dust, flue gas sampling in the performance test such as fly-ash separator, desulphurization and denitration.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a flue thieff hatch gland bonnet, the gland bonnet that comprises thieff hatch pipe and be connected with described thieff hatch pipe, it is characterized in that, described gland bonnet comprises lid and the inner sleeve and the outer tube that also coaxially arrange along described lid to downward-extension respectively and is located in the handle on described lid, between described inner sleeve and outer tube, leave the gap that holds described thieff hatch pipe, two side arms of described handle extend into downwards in described inner sleeve, and two described side arms can relatively move under external force, the end of two described side arms is connected with respectively register pin, two described register pins are oppositely arranged and leave spacing between the two, and link together by spring, the inwall of described inner sleeve is provided with pilot hole, the inwall of described thieff hatch pipe is provided with locating slot, described register pin can be plugged in described locating slot through described pilot hole.
2. flue thieff hatch gland bonnet as claimed in claim 1, is characterized in that, is respectively equipped with for two through holes that described side arm passes on described lid.
3. flue thieff hatch gland bonnet as claimed in claim 1, is characterized in that, the outer face of described register pin is arcwall face, and the inside surface of described locating slot is the arcwall face matching with described arcwall face.
4. flue thieff hatch gland bonnet as claimed in claim 1, is characterized in that, on described register pin, is provided with sealing gasket with corresponding described pilot hole junction.
5. flue thieff hatch gland bonnet as claimed in claim 1, is characterized in that, the bottom of described inner sleeve is provided with the flue gas dividing plate adapting with the caliber size of described inner sleeve, and described flue gas dividing plate is positioned at the below of described pilot hole.
6. flue thieff hatch gland bonnet as claimed in claim 1, is characterized in that, two described side arms weld with corresponding described register pin respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266652.5U CN203837958U (en) | 2014-05-23 | 2014-05-23 | Flue sampling hole sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266652.5U CN203837958U (en) | 2014-05-23 | 2014-05-23 | Flue sampling hole sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837958U true CN203837958U (en) | 2014-09-17 |
Family
ID=51515782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420266652.5U Expired - Lifetime CN203837958U (en) | 2014-05-23 | 2014-05-23 | Flue sampling hole sealing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837958U (en) |
-
2014
- 2014-05-23 CN CN201420266652.5U patent/CN203837958U/en not_active Expired - Lifetime
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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: 20140917 |