CN207569913U - Fire observation device - Google Patents

Abstract

The application provides a fire viewing device, it includes: the base is provided with a first opening and a second opening which are opposite, a first channel is arranged in the base, and the first opening is communicated with the second opening through the first channel; the first opening is used for being communicated with the hearth; a sealing part close to the first opening is arranged in the base; the side wall of the base is provided with an opening; an observation portion disposed in the second opening; the valve core is rotatably arranged in the first channel and is in rolling contact with the sealing part; the valve core is internally provided with a second channel penetrating through the valve core, and the valve core at least has two working positions: in the first working position, the hearth can be opened toward the observation part through the second passage; in the second working position, the first opening is sealed; the operating part penetrates through the opening, and the operating part can drive the valve core to rotate between the first working position and the second working position. The application embodiment provides a fire observation device that can guarantee the leakproofness, can nimble switching again.

Description

Fire observation device

Technical field

This application involves Industrial Boiler field more particularly to a kind of fire observation devices.

Background technology

Fire observation device can be used for the burner hearth of boiler carry out check see fire.Existing fire observation device includes and boiler wall Installed part, the fiery visor of sight for being observed burner hearth and the gear ash between installed part and the fiery visor of sight being connected Plate.Mounting groove is provided on existing installed part, is provided on the inner wall of the mounting groove towards the open through-hole of fiery visor is seen, it should The size and shape of mounting groove is identical with dust block board, and the side of dust block board is fixed with shaft.Shaft can drive dust block board to carry out 90 Degree rotation, to open or close through-hole.

Since the inner wall of dust block board and mounting groove is closer to dust block board is better to the sealing effect of through-hole.So in order to carry For high dust block board to the sealing effect of through-hole, the distance between inner wall of dust block board and mounting groove is smaller.So when opening through-hole, Outer wall of the dust block board close to shaft side slides on the inner wall of mounting groove, so as to generate sliding-frictional resistance, so easily makes It is stuck into dust block board, it is impossible to open or close through-hole, fire is seen so as to affect.

Utility model content

In view of this, the application embodiment provides one kind and not only can guarantee leakproofness, but also the sight fire dress that can be flexibly opened and closed It puts.

To achieve the above object, this application provides following technical solutions：A kind of fire observation device, including：With opposite The first opening and the second opening pedestal, first passage is provided in the pedestal, first opening passes through described first Channel and second opening in communication；Described first is open to be connected with burner hearth；It is provided in the pedestal close to institute State the sealing of the first opening；Be provided with trepanning on the side wall of the pedestal, the trepanning be located at the described first opening with it is described Between second opening；Observation portion is set in second opening；Spool, the spool can be rotatably arranged in described In one channel and the spool is in rolling contact with the sealing；It is provided in the spool by its perforative second channel, institute Spool is stated at least to have there are two operating position：At the first operating position, the burner hearth can be by the second channel towards institute Observation portion is stated to open wide；At the second operating position, first opening is sealed；Operating parts, the operating parts are arranged in described In trepanning, one end of the operating parts is connected with the spool, and the operating parts can drive the spool in first work Make to rotate between position and second operating position.

As a preferred embodiment, the spool includes upper wall surface and lower wall surface, the sealing has and institute State the first cambered surface that upper wall surface fits and the second cambered surface to fit with the lower wall surface.

As a preferred embodiment, the upper wall surface and the lower wall surface form spherical structure.

As a preferred embodiment, the second channel is linear.

As a preferred embodiment, being provided with annular groove on the inner wall of the pedestal, the sealing is annular in shape, is in It is provided on the outer wall of the cricoid sealing and the matched limiting section of the annular groove.

As a preferred embodiment, the sealing includes being arranged side by side along the extending direction of the first passage The first ring portion and the second ring portion, second ring portion is located at the side of first end of first ring portion back to the pedestal, The inner wall of the outer wall and the pedestal of second ring portion fits, the second ring described in the outer wall radially protruding of first ring portion The outer wall in portion forms the limiting section.

As a preferred embodiment, the pedestal includes hollow ontology and is respectively arranged at the ontology both ends The first cover and the second cover, the sealing includes the first sealing between first cover and the spool And the second sealing between second cover and the spool.

As a preferred embodiment, first opening is provided in first cover, first opening Front end cylinder is inside equipped with, one end of the front end cylinder back to first cover is provided with the peace for being connected with furnace wall Substrate is filled, the side of the installation base plate back to the front end cylinder is provided with the gasket for offseting with the furnace wall.

As a preferred embodiment, second opening is provided in second cover, second opening Rear end cylinder is inside equipped with, card slot is provided on the inner wall of the rear end cylinder, the observation portion is embedded in the card slot, and institute It states and is arranged with the pressure cap to offset with the observation portion outside the cylinder of rear end.

As a preferred embodiment, the first seal is provided between the observation portion and the card slot, it is described The second seal is provided between observation portion and the pressure cap.

As a preferred embodiment, it is formed with annular between the outer wall of the operating parts and the inner wall of the trepanning Space, sealing element is provided in the annular space, and the sealing element seals the annular space.

As a preferred embodiment, the stopper section in the trepanning is provided on the operating parts, it is described Stopper section has the stop surface for being limited to the sealing element.

As a preferred embodiment, the operating parts has the connecting pin that cross section is in multilateral shape, the valve Set fluted on core, the connecting pin is stretched into the groove and the connecting pin can drive the valve core rotation.

As a preferred embodiment, the handle for gripping is arranged with outside the operating parts.

As a preferred embodiment, the handle include along the first extended segment radially extended of the pedestal and Along the second axially extending extended segment of the pedestal, second extended segment is sheathed on outside the operating parts, on the pedestal It is provided with the positioning pin for offseting with first extended segment.

As a preferred embodiment, the centre of sphere of the spool be located at it is on the pivot center of the operating parts and described The extending direction of pivot center and the first passage is perpendicular.

As a preferred embodiment, the observation portion includes the first glass and the second glass that are superimposed, it is described It is in vacuum state between first glass and second glass.

By above technical solution, the fire observation device described in the application embodiment by setting the spool that can be rotated, So that spool, at the second operating position, sealing first is open, so as to can guarantee leakproofness.When needing that burner hearth is checked When, by operating parts rotational valve core so that burner hearth can be opened wide by second channel towards observation portion, due to spool and sealing Portion is in rolling contact, so the friction between spool and sealing is rolling friction.And dust block board of the prior art and mounting groove Friction between inner wall is sliding friction, so the friction resistance generated between the spool and sealing described in the application embodiment Power is smaller relative to the frictional resistance suffered by dust block board in the prior art, so as to improve the flexibility of opening and closing.In this way, this Shen Please embodiment provide and a kind of not only can guarantee leakproofness, but also the fire observation device that can be flexibly opened and closed.

Description of the drawings

Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, the understanding to the application is used to help, and It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings：

Fig. 1 is the structure diagram of the fire observation device of the application embodiment.

Specific embodiment

Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear Chu is fully described by, it is clear that described embodiment is only the reality of a part of embodiment of the application rather than whole Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts The every other embodiment obtained, shall fall in the protection scope of this application.

Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein The purpose of the embodiment of body, it is not intended that in limitation the application.

Referring to Fig. 1, a kind of fire observation device that present embodiment is provided, including：With the first opposite 25 Hes of opening The pedestal of second opening 27, first passage 29 is provided in the pedestal, and first opening 25 passes through the first passage 29 It is connected with the described second opening 27；First opening 25 is used to be connected with burner hearth；It is provided in the pedestal close to institute State the sealing 17 of the first opening 25；Trepanning 15 is provided on the side wall of the pedestal, the trepanning 15 is opened positioned at described first Between mouth 25 and second opening 27；Observation portion 23 is set in second opening 27；Spool 19, the spool 19 It can be rotatably arranged in the first passage 29 and the spool 19 is in rolling contact with the sealing 17；In the spool 19 It is provided with its perforative second channel 31, the spool 19 at least has there are two operating position：At the first operating position, institute Burner hearth is stated to open wide towards the observation portion 23 by the second channel 31；At the second operating position, first opening 25 are sealed；Operating parts 21, the operating parts 21 are arranged in the trepanning 15, one end and the spool of the operating parts 21 19 are connected, and the operating parts 21 can drive the spool 19 between first operating position and second operating position Rotation.

In use, it is first that the first opening 25 is facing with burner hearth, so that the first opening 25 is connected with burner hearth.Then pass through 21 rotational valve core 19 of operating parts makes spool 19 be located at the first operating position, i.e., burner hearth by second channel 31 towards observation portion 23 It opens wide, so as to be checked by observation portion 23 to burner hearth.Then after checking, by 21 rotational valve core 19 of operating parts, Spool 19 is made to be in the second operating position, that is, the first opening 25 is sealed, to prevent the flue gas in burner hearth from spraying.

By the fire observation device described in the application embodiment it can be seen from above scheme by setting the spool that can be rotated 19 so that spool 19 is at the second operating position, the first opening 25 of sealing, so as to can guarantee leakproofness.When need to burner hearth into When row is checked, by 21 rotational valve core 19 of operating parts so that burner hearth can be opened wide by second channel 31 towards observation portion 23, Since spool 19 and sealing 17 are in rolling contact, so the friction between spool 19 and sealing 17 is rolling friction.It is and existing The friction between dust block board and mounting groove inner wall in technology is sliding friction, thus the spool described in the application embodiment with The frictional resistance generated between sealing 17 is smaller relative to the frictional resistance suffered by dust block board in the prior art, so as to improve The flexibility of opening and closing.

As shown in Figure 1, in the present embodiment, pedestal 11 has opposite the first opening 25 and the second opening 27.First Opening 25 is used to be connected with burner hearth.It is provided with first passage 29 in pedestal 11, the first opening 25 passes through first passage 29 and the Two openings 27 are connected.Specifically, pedestal 11 is in hollow cylindrical shape on the whole.The first passage 29 prolongs along the axis of pedestal 11 It stretches.So as to which when the first opening 25 is connected with burner hearth, burner hearth can be by first passage 29 towards external open.The side of pedestal 11 Trepanning 15 is provided on wall, trepanning 15 is located between the first opening 25 and the second opening 27.Further, the axis of the trepanning 15 With the axis perpendicular of pedestal 11.

In the present embodiment, observation portion 23 is set in the second opening 27.The observation portion 23 is used to look into burner hearth It sees.Further, the temperature difference in order to prevent inside and outside burner hearth to generate fog in observation portion 23 and influence clarity, observation portion 23 It is in vacuum state between the first glass and the second glass including the first glass and the second glass being superimposed.The vacuum state, can To be state of the air pressure as 5KPA.First glass and the second glass can be heat safe quartz materials, such as heatproof 1100 ℃。

In one embodiment, pedestal 11 includes hollow ontology 33 and the first lid for being respectively arranged at 33 both ends of ontology 35 and second cover 37 of body.Can be between first cover, 35 and second cover 37 and ontology 33 threaded connection, screw connection, Welding is integrally formed.Preferably, ontology 33 is provided at both ends with internal thread hole, 35 and second cover 37 of the first cover it is outer The external screw thread being adapted with the internal thread hole is provided on wall.

Further, the first opening 25 is provided in the first cover 35, front end cylinder 39 is equipped in the first opening 25, it is preceding One end of end cylinder 39 back to the first cover 35 is provided with installation base plate 43 for being connected with furnace wall, installation base plate 43 back to The side of front end cylinder 39 is provided with the gasket 45 for offseting with furnace wall.So as to which pedestal 11 can pass through installation base plate 43 and pot The furnace wall of stove is mutually fixed.Specifically, installation base plate 43 is plate-like, and installation base plate 43 is set on the front end face of front end cylinder 39 And radially extending along front end cylinder 39.The marginal portion of installation base plate 43 is provided with mounting hole, so as to pass through the mounting hole Installation base plate 43 with furnace wall screw is fixed or bolt is fixed.Can be that welding is solid between the installation base plate 43 and front end cylinder 39 Fixed, integrated molding.When installation base plate 43 and furnace wall are mutually fixed, gasket 45 positioned at furnace wall and installation base plate 43 between, thus The gap between installation base plate 43 and furnace wall is sealed, to prevent the flue gas in burner hearth from leakage between the gap and heat-insulated work With.Preferably, the side of installation base plate 43 back to front end cylinder 39 is provided with the liner plate component 47 extended forward, the liner plate component 47 see burner for being inserted into furnace wall, for further strengthening fixed fastness between installation base plate 43 and furnace wall.The pedestal 11, Front end cylinder 39, installation base plate 43 and liner plate component 47 are stainless steel, so as to prevent from corroding and get rusty.

Further, the second opening 27 is provided in the second cover 37, rear end cylinder 41 is equipped in the second opening 27, after It holds and card slot 49 is provided on the inner wall of cylinder 41, observation portion 23 is embedded in card slot 49, and is arranged with and is observed outside rear end cylinder 41 The pressure cap 51 that portion 23 offsets.Specifically, rear end cylinder 41 includes undergauge section and outer diameter is more than the extension diameter section of undergauge section.This second is opened Internal thread is provided in mouth 27.External screw thread is provided on the outer wall of the undergauge section, which can pass through the external screw thread and second Internal thread in opening 27 is threadedly coupled.The end face of the extension diameter section back to one end of undergauge section is recessed inwardly to form card slot 49.

Preferably, the first seal 53 is provided between observation portion 23 and card slot 49, is set between observation portion 23 and pressure cap 51 It is equipped with the second seal 55.When can prevent from checking burner hearth so as to the first seal 53 and the second seal 55, in burner hearth Flue gas from the situation of the clearance leakage between portion 23 and front end cylinder 39.First seal, 53 and second seal 55 can be graphite.

In the present embodiment, the sealing 17 close to the first opening 25 is provided in pedestal.The sealing 17 can be Airtight and watertight padding or graphite-seal ring.Sealing 17 includes the first sealing between the first cover 35 and spool 19 Portion 17 and the second sealing 17 between the second cover 37 and spool 19.So as to pass through the first sealing 17 and the second sealing Portion 17 can strengthen the leakproofness to the first opening 25, and at the end of ensureing to check, the flue gas in burner hearth will not be from the first opening It is revealed in 25.

In a specific embodiment, annular groove 13 is provided on the inner wall of pedestal 11, sealing 17 is annular in shape, in ring It is provided on the outer wall of the sealing 17 of shape and 13 matched limiting section of annular groove.So as to which sealing 17 can be consolidated with 11 phase of pedestal Fixed, so ensure that can keep the state fitted closely between sealing 17 and spool 19, so as to ensure sealing 17 and spool Leakproofness between 19.

Preferably, sealing 17 includes the first ring portion being arranged side by side along the extending direction of first passage 29 and the second ring Portion, the second ring portion are located at the first ring portion back to the side of the first end of pedestal 11, the outer wall of the second ring portion and the inner wall of pedestal 11 It fits, the outer wall of the second ring portion of outer wall radially protruding of the first ring portion forms limiting section.So as to be sealed by the second ring portion Gap between the outer wall of spool 19 and the inner wall of pedestal 11, during so as to ensure that spool 19 is in the second operating position, sealing Portion 17 fits with cambered surface can seal the first opening 25.

In one embodiment, spool 19 includes upper wall surface and lower wall surface, and sealing 17 has to fit with upper wall surface The first cambered surface and the second cambered surface for fitting with lower wall surface.So as to which when spool 19 rotates, spool 19 can seal the first opening 25, so as to which the first opening 25 be made to be in sealing state.

Preferably, upper wall surface and lower wall surface form spherical structure.When being rotated so as to spool 19 relative to sealing 17, spool Friction between 19 and sealing 17 is rolling friction, and so as to which the resistance suffered by spool 19 is smaller, such spool 19 can be flexibly Rotation.

Preferably, second channel 31 is linear.So as in the extension of 31 extending direction of second channel and first passage 29 Direction is consistent, and burner hearth can be opened wide by the second channel 31 towards observation portion 23, so as to which spool 19 be made to be in the first work Position.

Specifically, when second channel 31 is connected with the first opening 25, spool 19 opens the first opening 25, i.e. spool 19 It can be by second channel 31 towards 23 open first operating position of observation portion in burner hearth.When second channel 31 and first is open 25 when being not attached to logical, and spool 19 is in the second operating position of the first opening 25 of sealing.

In the present embodiment, operating parts 21 is arranged in trepanning 15, and one end of operating parts 21 is connected with spool 19, behaviour 21 energy band movable valve plug 19 of workpiece rotates between the first operating position and the second operating position.Further, the centre of sphere of spool 19 On the pivot center of operating parts 21 and the extending direction of pivot center and first passage 29 is perpendicular.So as to 21 energy of operating parts Along the extending direction rotational valve core 19 perpendicular to first passage 29.

Further, annular space is formed between the outer wall of operating parts 21 and the inner wall of trepanning 15, is set in annular space Sealing element 57 is equipped with, sealing element 57 seals annular space.So as to which when spool 19 rotates, sealing element 57 can prevent the cigarette in burner hearth Gas is revealed out of annular space, so as to strengthen the leakproofness to the flue gas in burner hearth.

Preferably, the stopper section 59 in trepanning 15 is provided on operating parts 21, stopper section 59 has for sealing The stop surface that part 57 is limited.So as to which the stop surface can prevent sealing element 57 from falling, so as to strengthen the stabilization of sealing element 57 Property.Further, the side of sealing element 57 back to stop surface is provided with gland 61, so as to prevent sealing element 57 from altering upwards It is dynamic, so as to further enhance the stability of sealing element 57.

In a specific embodiment, operating parts 21 has the connecting pin 63 that cross section is in multilateral shape, spool 19 Upper setting fluted 65, connecting pin 63 is stretched into groove 65 and 63 energy band movable valve plug 19 of connecting pin rotates.Such as the connecting pin 63 In tetragonal body shape, the inner wall and the outer wall of connecting pin 63 of the groove 65 fit, so as to 21 energy band movable valve plug 19 of rotating operation part Rotation.

Further, the handle 67 for gripping is arranged with outside operating parts 21.Specifically, it is provided with four directions on handle 67 Mouthful, be provided on operating parts 21 with the matched tetragonal body of four square openings, so as to the handle 67 by the four directions muzzle set on four It, can rotating operation part 21 so when gripping handle 67 in cube.Further, the upper end of operating parts 21 is provided with fixed spiral shell Mother 71.

Preferably, handle 67 is included along the first extended segment radially extended of pedestal 11 and along the axially extending of pedestal 11 Second extended segment, the second extended segment are sheathed on outside operating parts 21, are provided with to determine with what the first extended segment offseted on pedestal 11 Position pin 69.So as to which the positioning pin 69 can limit handle 67, to prevent the maloperation of opponent's handle 67.

It should be noted that in the description of the present application, term " first ", " second " etc. are only used for description purpose and difference Similar object, between the two and there is no sequencings, can not be interpreted as indicating or implying relative importance.In addition, In the description of the present application, unless otherwise indicated, " multiple " are meant that two or more.

It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this The four corner of equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed Apply for a part for theme.

Claims (17)

1. a kind of fire observation device, which is characterized in that including：

With opposite the first opening and the second pedestal being open, first passage, first opening are provided in the pedestal Pass through the first passage and second opening in communication；Described first is open to be connected with burner hearth；In the pedestal It is provided with the sealing close to the described first opening；It is provided with trepanning on the side wall of the pedestal, the trepanning is located at described the Between one opening and second opening；

Observation portion is set in second opening；

Spool, the spool can be rotatably arranged in the first passage and the spool is in rolling contact with the sealing； It is provided in the spool by its perforative second channel, the spool at least has there are two operating position：In the first working position When putting, the burner hearth can be opened wide by the second channel towards the observation portion；At the second operating position, described first opens Mouth is sealed；

Operating parts, the operating parts are arranged in the trepanning, and one end of the operating parts is connected with the spool, the behaviour Workpiece can drive the spool to be rotated between first operating position and second operating position.

2. fire observation device according to claim 1, it is characterised in that：The spool includes upper wall surface and lower wall surface, described Sealing has the first cambered surface to fit with the upper wall surface and the second cambered surface to fit with the lower wall surface.

3. fire observation device according to claim 2, it is characterised in that：The upper wall surface and the lower wall surface form spherical junctions Structure.

4. fire observation device according to claim 1, it is characterised in that：The second channel is linear.

5. fire observation device according to claim 1, it is characterised in that：Annular groove is provided on the inner wall of the pedestal, it is described Sealing is annular in shape, is provided with and the matched limiting section of the annular groove on the outer wall of the sealing annular in shape.

6. fire observation device according to claim 5, it is characterised in that：The sealing includes prolonging along the first passage The first ring portion and the second ring portion that direction is arranged side by side are stretched, second ring portion is located at first ring portion back to the pedestal The side of first end, the inner wall of the outer wall and the pedestal of second ring portion fit, and the outer wall of first ring portion is radially The outer wall for protruding second ring portion forms the limiting section.

7. fire observation device according to claim 1, it is characterised in that：The pedestal includes hollow ontology and sets respectively The first cover and the second cover in the ontology both ends, the sealing include positioned at first cover and the spool it Between the first sealing and the second sealing between second cover and the spool.

8. fire observation device according to claim 7, it is characterised in that：Described first is provided in first cover to open Mouthful, front end cylinder is equipped in first opening, one end of the front end cylinder back to first cover, which is provided with, to be used for The installation base plate being connected with furnace wall, the side of the installation base plate back to the front end cylinder be provided with for the furnace wall The gasket to offset.

9. fire observation device according to claim 7, it is characterised in that：Described second is provided in second cover to open Mouthful, rear end cylinder is equipped in second opening, card slot, the observation portion insertion are provided on the inner wall of the rear end cylinder In the card slot, and the pressure cap to offset with the observation portion is arranged with outside the rear end cylinder.

10. fire observation device according to claim 9, it is characterised in that：It is provided between the observation portion and the card slot First seal is provided with the second seal between the observation portion and the pressure cap.

11. fire observation device according to claim 1, it is characterised in that：The outer wall of the operating parts is interior with the trepanning Annular space is formed between wall, sealing element is provided in the annular space, the sealing element seals the annular space.

12. fire observation device according to claim 11, it is characterised in that：It is provided on the operating parts positioned at the trepanning Interior stopper section, the stopper section have the stop surface for being limited to the sealing element.

13. fire observation device according to claim 1, it is characterised in that：It is in multilateral shape that the operating parts, which has cross section, Connecting pin, set on the spool it is fluted, the connecting pin is stretched into the groove and the connecting pin can drive it is described Valve core rotation.

14. fire observation device according to claim 1, it is characterised in that：The hand for gripping is arranged with outside the operating parts Handle.

15. fire observation device according to claim 14, it is characterised in that：The handle includes prolonging along the radial direction of the pedestal The first extended segment and the second axially extending extended segment along the pedestal stretched, second extended segment is sheathed on the operation Outside part, the positioning pin for offseting with first extended segment is provided on the pedestal.

16. fire observation device according to claim 1, it is characterised in that：The centre of sphere of the spool is located at the operating parts On pivot center and the extending direction of the pivot center and the first passage is perpendicular.

17. fire observation device according to claim 1, it is characterised in that：The observation portion includes the first glass being superimposed It is in vacuum state between first glass and second glass with the second glass.