CN218761461U - Flue valve and flue gas emission system using same - Google Patents
Flue valve and flue gas emission system using same Download PDFInfo
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- CN218761461U CN218761461U CN202222890532.XU CN202222890532U CN218761461U CN 218761461 U CN218761461 U CN 218761461U CN 202222890532 U CN202222890532 U CN 202222890532U CN 218761461 U CN218761461 U CN 218761461U
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Abstract
The utility model provides a flue valve and use its flue gas discharge system, flue valve, include: a valve body; the valve plate is rotatably arranged in the valve body; the boss is arranged in the valve body and used for sealing the valve plate in a stepped manner; and a cooling mechanism for cooling the valve plate; two groups of steps are arranged in the boss, are respectively positioned on two sides of the valve plate and cover the peripheral side of the valve plate; seal the space between valve plate and the valve body through setting up cascaded boss, improve the leakproofness of flue valve, reduce and let out leakage quantity, sealing performance is good, and need not additionally to operate convenient to use.
Description
Technical Field
The utility model relates to a flue technical field especially relates to a flue valve and use its flue gas discharge system.
Background
Industrial furnaces such as gas roasting furnaces and the like generate a large amount of high-temperature flue gas in the working process, in order to discharge the flue gas and control the furnace pressure, a flue valve needs to be arranged in a flue gas discharge system of the industrial furnace, and because the flue valve can generate expansion deformation under the high-temperature working condition, the opening and closing actions of the valve are influenced, gaps are reserved between a valve plate and a valve body in the valve to ensure that the valve body can normally operate, but the reserved gaps also reduce the sealing performance of the valve.
Chinese patent CN 207316108U discloses a dual-seal anti-jamming flue gate valve, which comprises a pair of gate valve frames, a gate, and a pair of sealing plates; the flashboard valve frames are I-shaped, the pair of flashboard valve frames are respectively and oppositely fixed in the flue, and two ends of the flashboard are respectively fixed at the sunken parts of the I-shaped flashboard valve frames; one end of the sealing plate is connected with the top of the flashboard valve frame through a hinge. The flue gate valve is simple in structure, low in cost and convenient to modify, except for sealing of the frame and the valve plate, the newly added sealing plate plays a role in double-layer sealing, and meanwhile, the problem of expansion with heat and contraction with cold of the valve are solved.
However, the technical scheme still has some problems, in the using process, the inserting plate needs to move in place firstly, and then the sealing plate is driven to be closed by controlling the hinge, so that the operation of closing the valve is completed, the additionally arranged hinge not only increases the operation amount, but also is of a movable installation structure, the shape and the movement of the hinge are easily influenced by high temperature, and the using effect of the hinge is influenced by the factors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's weak point, provide a flue valve and use its flue gas discharge system, seal the space between valve body and the valve through setting up cascaded boss, improve sealing performance, simple structure, convenient to use solves between valve body and the valve and leads to the problem at the end is handed over to the leakproofness because of leaving the space.
In order to achieve the above object, the utility model provides a following technical scheme:
a flue valve, comprising:
a valve body;
the valve plate is rotatably arranged in the valve body;
the boss is arranged in the valve body and used for sealing the valve plate in a stepped manner; and
and the cooling mechanism is used for cooling the valve plate.
Specifically, the valve plate is preferably but not limited to a circular shape, and a channel with a circular section is arranged inside the valve body;
the inner wall or the boss of the valve body is molded by adopting casting materials for heat preservation.
Preferably, a gap for deforming the valve plate is left in the valve body, and the width of the gap is smaller than the width of the boss.
Specifically, the inner diameter of the valve body is larger than the outer diameter of the valve plate, an annular cavity is formed between the inner wall of the valve body and the outer wall of the valve plate, and the annular width of the annular cavity is smaller than that of the boss;
the opening and closing state of the valve body is controlled through the rotary valve plate, when the valve plate rotates to the valve body to be closed, the valve plate simultaneously supports the boss, the gap between the valve plate and the valve body is sealed through the stepped boss, the sealing performance of the flue valve is further improved, and the leakage amount is reduced.
Preferably, two sets of steps are provided in the boss, and the two sets of steps are respectively located on two sides of the valve plate and cover the peripheral side of the valve plate.
Specifically, the boss is circular as a whole, and the step is preferably but not limited to a circular ring shape;
when the flue valve is closed, the two sides of the valve plate are respectively abutted to the two sets of steps, and the steps plug the gap between the peripheral sides of the valve plate and the valve body, so that the function of enhancing the sealing effect is achieved.
As one preference, the cooling mechanism includes:
two rotating shafts which are rotatably arranged on the valve body and are used for driving the valve plate to rotate, and
and the cooling cavity is arranged in the rotating shaft and the valve body and used for cooling liquid to circulate.
Specifically, when the flue valve works, cooling liquid flows in the valve plate through the cooling cavity in a circulating mode, the temperature rise of the flue valve is reduced, expansion deformation is reduced, and therefore the sealing effect is improved.
As still another preference, the cooling cavity is of a unidirectional structure.
Specifically, the one-way structure makes the better circulation flow of coolant liquid carry out cooling in the valve plate.
Preferably, the cooling chamber includes:
the main cavity is arranged in the valve plate and is in an S shape; and
a liquid inlet cavity and a liquid outlet cavity which are respectively communicated with the two ends of the main cavity body are arranged on the two rotating shafts.
Specifically, the shape of the main cavity is preferentially but not limited to a single S-shaped structure, and the S-shaped main cavity can better cover the valve plate and improve the cooling area while realizing the unidirectional flow of the cooling liquid.
Preferably, the rotating shaft extends to the outer side of the valve body and is externally connected with a cooling liquid circulating system.
Specifically, the cooling liquid enters the main cavity through the liquid inlet cavity, cools and cools the valve plate, and then flows out through the liquid outlet cavity.
Another purpose of the utility model is to provide a flue gas discharge system to prior art's weak point, through setting up two exhaust ports one big one little, improve control range and regulation sensitivity.
In order to achieve the above object, the utility model provides a following technical scheme:
a flue gas discharge system, the discharge system using the above-mentioned flue valve, further comprising:
main pipe line: and
the smoke exhaust pipes are arranged on the main pipeline, and two smoke exhaust ports are formed in the smoke exhaust pipes;
the flue valve is arranged in the main pipeline and the smoke exhaust port.
Specifically, the opening and closing states of the main pipeline and each smoke outlet can be controlled through the flue valve respectively.
Preferably, the inner diameters of the two smoke outlets in the same group are different.
Specifically, through setting up one big one little two exhaust ports, compare with traditional single row exhaust port or a plurality of exhaust port structures of the same size, the control range is wider, and is especially more sensitive to the fluctuation of furnace pressure and adjusts.
The beneficial effects of the utility model reside in that:
(1) The utility model discloses a set up cascaded boss and seal the space between valve plate and the valve body, improve the leakproofness of flue valve, reduce and let out leakage quantity, sealing performance is good, and need not additionally to operate convenient to use.
(2) The utility model discloses a set up the cooling body of one-way circulation flow and cool off the valve plate in the valve plate, reduce the temperature rise of flue valve, reduce the inflation and warp, further improve sealing performance.
(3) The utility model discloses a set up one big one little two exhaust ports on discharging fume the pipe, control range is wider, and is especially more sensitive to the fluctuation control of furnace pressure.
To sum up, the utility model has the advantages of improve the sealing performance of flue valve, simple structure, convenient to use.
Drawings
FIG. 1 is a schematic view of a flue valve according to the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the valve body of the present invention;
FIG. 4 is a schematic view of the valve plate of the present invention;
FIG. 5 is a schematic view of the flue gas discharge system of the present invention;
fig. 6 is an enlarged view of a portion B of fig. 5 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example one
As shown in fig. 1-4, the present embodiment provides a flue valve comprising:
a valve body 1;
a valve plate 2 rotatably disposed inside the valve body 1;
a boss 3 arranged in the valve body 1 for sealing the valve plate 2 in a stepped manner; and
and a cooling mechanism 4 for cooling the valve plate 2.
Specifically, the valve plate 2 is preferably but not limited to a circular shape, and a passage with a circular cross section is arranged inside the valve body 1;
the inner wall or the boss 3 of the valve body 1 is molded by casting material for heat preservation.
As shown in fig. 2, a gap for deforming the valve plate 2 is left in the valve body 1, and the width of the gap is smaller than the width of the boss 3.
Specifically, the inner diameter of the valve body 1 is larger than the outer diameter of the valve plate 2, an annular cavity is formed between the inner wall of the valve body 1 and the outer wall of the valve plate 2, and the annular width of the annular cavity is smaller than that of the boss 3;
control the state of opening and shutting of valve body 1 through rotatory valve plate 2, when valve plate 2 is rotatory to when closing valve body 1, valve plate 2 supports simultaneously on boss 3, seals the space between valve plate 2 and the valve body 1 through setting up cascaded boss 3, further improves the leakproofness of flue valve, reduces and lets out leakage quantity.
As shown in fig. 1-2, two sets of steps are further disposed in the boss 3, and the two sets of steps are respectively disposed on two sides of the valve plate 2 and cover the periphery of the valve plate 2.
Specifically, the whole boss 3 is circular, the steps are preferably but not limited to circular, and a space for the valve plate 2 to rotate is reserved between the two groups of steps;
when the flue valve is closed, the two sides of the valve plate 2 are respectively abutted to the two sets of steps, the steps plug the gap between the peripheral side of the valve plate 2 and the valve body 1, the function of enhancing the sealing effect is achieved, the structure is simple, and the use is convenient.
As shown in fig. 4, further, the cooling mechanism 4 includes:
two rotating shafts 41 rotatably provided on the valve body 1 for driving the valve plate 2 to rotate, and
and a cooling chamber 42 provided in the rotary shaft 41 and the valve body 1 and through which a cooling liquid flows.
Specifically, when the flue valve works, cooling liquid circularly flows in the valve plate 2 through the cooling cavity 42, so that the temperature rise of the flue valve is reduced, the expansion deformation is reduced, and the sealing effect is improved.
As shown in fig. 4, further, the cooling chamber 42 is of a one-way construction.
Specifically, the one-way structure enables the cooling liquid to better circularly flow in the valve plate 2 for cooling.
As shown in fig. 4, further, the cooling chamber 42 includes:
a main cavity 421 disposed in the valve plate 2 and having an S-shape; and
a liquid inlet cavity 422 and a liquid outlet cavity 423 which are respectively arranged on the two rotating shafts 41 and are communicated with the two ends of the main cavity 421.
Specifically, the shape of the main cavity 421 is preferably but not limited to a single S-shaped structure, and the S-shaped main cavity 421 can better cover the valve plate 2 and increase the cooling area while realizing the unidirectional flow of the cooling liquid.
As shown in fig. 1, further, the rotating shaft 41 extends to the outside of the valve body 1 and is externally connected with a cooling liquid circulation system.
Specifically, the coolant liquid enters the main cavity 421 through the liquid inlet cavity 422, and flows out through the liquid outlet cavity 423 after cooling the valve plate 2.
Example two
As shown in fig. 5-6, the present embodiment provides a flue gas exhaust system, which employs a flue valve as described above, and further includes:
a main pipeline 5: and
a plurality of smoke exhaust pipes 6 arranged on the main pipeline 5, wherein two smoke exhaust ports 61 are arranged in the smoke exhaust pipes 6;
the flue valve is arranged in the main pipeline 5 and the smoke outlet 61.
Specifically, the opening and closing states of the main pipe 5 and the exhaust ports 61 can be controlled by the flue valves respectively.
As shown in fig. 6, further, the inner diameters of the two smoke discharge openings 61 in the same group are different.
Specifically, through setting up one big one little two exhaust ports 61, compare with traditional single exhaust port 61 or a plurality of exhaust port 61 structures of the same size, the control range is wider, and is especially more sensitive to the fluctuation regulation of furnace pressure.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A flue valve, comprising:
a valve body;
the valve plate is rotatably arranged in the valve body;
the boss is arranged in the valve body and used for sealing the valve plate in a stepped manner; and
a cooling mechanism for cooling the valve plate;
and a gap for deforming the valve plate is reserved in the valve body, and the width of the gap is smaller than that of the boss.
2. A flue valve according to claim 1,
two sets of steps are arranged in the boss and are respectively positioned on two sides of the valve plate and cover the peripheral sides of the valve plate.
3. A flue valve according to claim 1,
the cooling mechanism includes:
two rotating shafts which are rotatably arranged on the valve body and are used for driving the valve plate to rotate, and
and the cooling cavity is arranged in the rotating shaft and the valve body and used for cooling liquid to circulate.
4. A flue valve according to claim 3,
the cooling cavity is of a one-way structure.
5. A flue valve according to claim 3,
the cooling chamber includes:
the main cavity is arranged in the valve plate and is in an S shape; and
a liquid inlet cavity and a liquid outlet cavity which are respectively communicated with the two ends of the main cavity body are arranged on the two rotating shafts.
6. A flue valve according to claim 3,
the rotating shaft extends to the outer side of the valve body and is externally connected with a cooling liquid circulating system.
7. A flue gas discharge system comprising a flue valve according to any of claims 1-6, further comprising:
main pipe line: and
a plurality of smoke exhaust pipes are arranged on the main pipeline, and two smoke exhaust ports are arranged in the smoke exhaust pipes;
the flue valve is arranged in the main pipeline and the smoke exhaust port.
8. The fume evacuation system of claim 7,
the inner diameters of the two smoke exhaust ports in the same group are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222890532.XU CN218761461U (en) | 2022-11-01 | 2022-11-01 | Flue valve and flue gas emission system using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222890532.XU CN218761461U (en) | 2022-11-01 | 2022-11-01 | Flue valve and flue gas emission system using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218761461U true CN218761461U (en) | 2023-03-28 |
Family
ID=85645697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222890532.XU Active CN218761461U (en) | 2022-11-01 | 2022-11-01 | Flue valve and flue gas emission system using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218761461U (en) |
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2022
- 2022-11-01 CN CN202222890532.XU patent/CN218761461U/en active Active
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