CN212203147U - Balance valve with balance weight for heat treatment furnace - Google Patents
Balance valve with balance weight for heat treatment furnace Download PDFInfo
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- CN212203147U CN212203147U CN202020395344.8U CN202020395344U CN212203147U CN 212203147 U CN212203147 U CN 212203147U CN 202020395344 U CN202020395344 U CN 202020395344U CN 212203147 U CN212203147 U CN 212203147U
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Abstract
The utility model relates to a balance valve for a heat treatment furnace with a balance weight, which comprises a valve body (1), wherein the valve body (1) is connected with a mounting plate (2), a circle of annular sealing groove (4) is fixed on the mounting plate (2), and a sealing ring (5) is connected in the annular sealing groove (4); one side of the valve body (1) is connected with a fixed seat (6) and a fixed lug (7), the fixed lug (7) is connected with a rotating shaft (8), the rotating shaft (8) is connected with a rotating plate (9), one side of the rotating plate (9) is connected with a cover plate (10) one side of which is matched with the valve body (1), and the other side of the rotating plate is connected with a counterweight shaft (11) and a counterweight block (12); a circular groove (10 a) matched with the sealing ring (5) is arranged in the cover plate (10); the outer side of the fixed ear (7) is connected with a limiting block (13). The utility model has the advantages that improve the leakproofness and the structural strength of valve body, noise when reducing the switching is convenient for adjust and change.
Description
Technical Field
The utility model belongs to the technical field of the balanced valve technique and specifically relates to a balanced valve for heat treatment furnace from taking counter weight.
Background
At present, the requirement of domestic heat treatment furnaces on furnace pressure control is higher and higher, and particularly, the final quality of products is influenced by the pressure and the tightness of a hearth of the domestic heat treatment furnaces. Normally, such devices are equipped with a balancing valve device, which is mainly used in two forms: one is a horizontal valve plate, namely when the furnace pressure is ultrahigh, the horizontal valve plate is jacked open to release the pressure, and when the pressure is reduced, the valve plate falls and closes by gravity; the other type is an inclined-port pipeline type balance valve, a valve plate of the balance valve is in a hinge mode and is installed on a pipeline slope notch, when the furnace pressure is ultrahigh, the valve plate is automatically pushed open, and when the furnace pressure is reduced, the valve plate is closed.
However, both of these valves suffer from serious drawbacks. Firstly, as the sealing surface is only rigid seal, the valve plate is easy to deform under the action of high-temperature air flow of heat treatment exhaust, thus causing poor seal; secondly, because the valve plate is opened and is closed frequently, can often collide the vibration between valve plate and the casing, this not only produces very big noise, also can cause the valve plate to drop.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is just in order to solve the poor, the low and easy impaired problem of structural strength of current balance valve leakproofness, provides a from heat treatment furnace balance valve of taking the counter weight, can effectively increase the sealed face of valve body, improves the leakproofness and the structural strength of valve body, noise when reducing the switching, and convenient adjustment and change.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a balance valve with a balance weight for a heat treatment furnace comprises a valve body, wherein the upper end of the valve body is connected with an annular mounting plate, the inner diameter of the mounting plate is the same as that of the valve body, the axes of the mounting plate and the valve body are superposed, a circle of annular sealing groove coaxial with the mounting plate is fixed on the mounting plate, and a sealing ring is connected in the annular sealing groove to play the roles of sealing and buffering;
one side of the valve body is connected with a fixed seat, the fixed seat is connected with a vertical fixed lug, the fixed lug is connected with a horizontal rotating shaft, the rotating shaft is connected with a pair of rotating plates, one side of each rotating plate is connected with a cover plate, one side of each rotating plate is matched with the valve body, the other side of each rotating plate is connected with a counterweight shaft, the counterweight shafts are fixed between the two rotating plates, and a group of counterweight blocks are sleeved on the counterweight shafts to meet the furnace pressure regulation requirements of various heat treatment furnaces;
one side of the cover plate, which faces the valve body, is provided with a circular groove which is coaxial with the valve body, the diameter of the circular groove is not smaller than the outer diameter of the sealing ring, and the sealing ring can be embedded into the circular groove of the cover plate so as to be clamped in the circular groove when the cover plate is closed;
the outer side of the fixing lug is connected with a limiting block parallel to the rotating shaft, and the length of the limiting block is larger than the distance between the two rotary plates so as to limit the cover plate when the cover plate is opened and prevent the mechanism from deflecting by too large angle.
Furthermore, a connecting flange is fixed at the lower end of the valve body, the inner diameter of the connecting flange is the same as that of the valve body, and the axes of the connecting flange and the valve body coincide, so that the valve body can be conveniently installed.
Further, a set of reinforcing ribs is connected between the lower surface of the mounting plate and the outer wall of the valve body so as to reinforce the strength of the whole structure.
Further, the sealing ring is a rectangular flexible sealing rope.
Further, the balancing weight is a group of weight type balancing weights, so that the weight can be increased or decreased according to the requirement.
In the technical scheme of the utility model, the concave cover plate is adopted, so that the strength of the cover plate can be increased, and the sealing surface is increased; the sealing form of the combination of the rectangular flexible sealing ring and the rigid concave cover plate is adopted, so that the sealing effect of the valve body is improved; meanwhile, the combined type balancing weight is adopted, so that the adjustment and the replacement are convenient, and the furnace pressure adjusting requirement of various heat treatment furnaces can be met. The utility model discloses a device novel structure can satisfy the stove pressure control requirement of all kinds of heat treatment furnaces, and sealing performance is good, structural strength is high, and the noise when the apron falls down can effectively be reduced because the effect of sealing washer when the apron opens and shuts.
Drawings
FIG. 1 is a schematic view showing a structure of a heat treatment furnace according to the present invention when a balance valve is opened and closed;
fig. 2 is a plan view of the balance valve for a heat treatment furnace according to the present invention.
Detailed Description
Example 1
In order to make the present invention more clearly understood, the following description is made with reference to the accompanying drawings for further explaining the balance valve for heat treatment furnace with balance weight, and the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
Referring to fig. 1, a balance valve for a heat treatment furnace with a balance weight comprises a valve body 1, and is characterized in that:
referring to fig. 1 and 2, an annular mounting plate 2 is connected to the upper end of a valve body 1, the inner diameter of the mounting plate 2 is the same as the inner diameter of the valve body 1, and the axes of the mounting plate 2 and the valve body 1 are overlapped, a group of reinforcing ribs 3 is connected between the lower surface of the mounting plate 2 and the outer wall of the valve body 1, a circle of annular sealing groove 4 coaxial with the mounting plate 2 is fixed on the mounting plate 2, a sealing ring 5 is connected in the annular sealing groove 4, and the sealing ring 5 is a rectangular flexible sealing rope to play a role in sealing;
one side of the valve body 1 is connected with a fixed seat 6, the fixed seat 6 is connected with a vertical fixed lug 7, the fixed lug 7 is connected with a horizontal rotating shaft 8, the rotating shaft 8 is connected with a pair of rotating plates 9, one side of each rotating plate 9 is connected with a cover plate 10, one side of each rotating plate is matched with the valve body 1, the other side of each rotating plate is connected with a counterweight shaft 11, each counterweight shaft 11 is fixed between the two rotating plates 9, a group of counterweight blocks 12 are sleeved on each rotating plate 9, and the counterweight blocks 12 are a group of counterweight type counterweight blocks so that the increase and decrease of the counterweight can meet the furnace pressure regulation;
a circular groove 10a coaxial with the valve body is formed in one surface, facing the valve body 1, of the cover plate 10, the diameter of the circular groove 10a is not smaller than the outer diameter of the sealing ring 5, and the sealing ring 5 can be embedded into the circular groove 10a of the cover plate 10 so that the sealing ring is clamped in the circular groove when the cover plate is closed;
the outer side of the fixed lug 7 is connected with a limiting block 13 parallel to the rotating shaft 8, and the length of the limiting block 13 is greater than the distance between the two rotary plates 9, so that the limiting block is used for limiting the cover plate when the cover plate is opened and preventing the deflection angle of the mechanism from being too large;
a connecting flange 14 is fixed at the lower end of the valve body 1, the inner diameter of the connecting flange 14 is the same as that of the valve body 1, and the axes of the connecting flange and the valve body are overlapped, so that the valve body can be conveniently installed.
In the utility model, the valve body 1 can be connected and matched with the corresponding position of the heat treatment furnace through the connecting flange 14 at the bottom, when pressure release is needed, the cover plate 10 at the upper part of the valve body 1 is jacked up, the cover plate 10 is opened along the rotating shaft 8, the maximum opening and closing angle is reached when the rotary plate 9 on the cover plate 10 is clamped at the limiting block 13, the cover plate 10 falls back due to self gravity after pressure release is finished, the circular groove 10a in the cover plate 10 is matched with the sealing ring 5 at the upper part of the valve body 1, and the effect of double air tightness is achieved; according to the furnace pressure adjusting requirement of the heat treatment furnace, the counterweight block 12 can be increased or decreased to adapt to different requirements. The utility model discloses structural strength is high, sealing performance is good, conveniently adjusts and changes to different pressure requirements, and accommodation is wide.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (5)
1. The utility model provides a balanced valve for heat treatment furnace from area counter weight, includes valve body (1), its characterized in that:
the upper end of the valve body (1) is connected with an annular mounting plate (2), the inner diameter of the mounting plate (2) is the same as that of the valve body (1), the axes of the mounting plate and the valve body are overlapped, a circle of annular sealing groove (4) coaxial with the mounting plate (2) is fixed on the mounting plate (2), and a sealing ring (5) is connected in the annular sealing groove (4);
one side of the valve body (1) is connected with a fixed seat (6), the fixed seat (6) is connected with a vertical fixed lug (7), the fixed lug (7) is connected with a horizontal rotating shaft (8), the rotating shaft (8) is connected with a pair of rotating plates (9), one side of each rotating plate (9) is connected with a cover plate (10) with one side matched with the valve body (1), the other side of each rotating plate is connected with a counterweight shaft (11), and a group of counterweights (12) are sleeved on the counterweight shafts (11);
one surface of the cover plate (10) facing the valve body (1) is provided with a circular groove (10 a) coaxial with the valve body (1), and the sealing ring (5) can be embedded into the circular groove (10 a);
the outer side of the fixed lug (7) is connected with a limiting block (13) parallel to the rotating shaft (8), and the length of the limiting block (13) is greater than the distance between the two rotary plates (9).
2. The balance valve for heat treatment furnace with self-weight according to claim 1, wherein:
the lower end of the valve body (1) is fixedly provided with a connecting flange (14), the inner diameter of the connecting flange (14) is the same as that of the valve body (1), and the axes of the connecting flange and the valve body coincide.
3. The balance valve for heat treatment furnace with self-weight according to claim 1 or 2, wherein:
a group of reinforcing ribs (3) are connected between the lower surface of the mounting plate (2) and the outer wall of the valve body (1).
4. The balance valve for heat treatment furnace with self-weight according to claim 1 or 2, wherein:
the sealing ring (5) is a rectangular flexible sealing rope.
5. The balance valve for heat treatment furnace with self-weight according to claim 1 or 2, wherein:
the balancing weight (12) is a group of weight type balancing weights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395344.8U CN212203147U (en) | 2020-03-25 | 2020-03-25 | Balance valve with balance weight for heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395344.8U CN212203147U (en) | 2020-03-25 | 2020-03-25 | Balance valve with balance weight for heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212203147U true CN212203147U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020395344.8U Active CN212203147U (en) | 2020-03-25 | 2020-03-25 | Balance valve with balance weight for heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212203147U (en) |
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2020
- 2020-03-25 CN CN202020395344.8U patent/CN212203147U/en active Active
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