CN217559171U - Furnace top pressure-equalizing blow-off valve anti-scouring structure - Google Patents
Furnace top pressure-equalizing blow-off valve anti-scouring structure Download PDFInfo
- Publication number
- CN217559171U CN217559171U CN202122132219.5U CN202122132219U CN217559171U CN 217559171 U CN217559171 U CN 217559171U CN 202122132219 U CN202122132219 U CN 202122132219U CN 217559171 U CN217559171 U CN 217559171U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- reinforcing block
- furnace top
- valve core
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of bleeding valves, and provides a furnace top pressure-equalizing bleeding valve anti-scouring structure, which comprises a valve seat and a bleeding runner; the valve core is arranged on the valve seat in a sliding manner and is positioned in the bleeding flow passage; one end of the valve rod is connected with the valve core, and the other end of the valve rod is arranged on the valve seat in a sliding manner; the valve rod is sleeved with a reinforcing sleeve, the outer diameter of the reinforcing sleeve is gradually increased, and the outer diameter of one end close to the valve core is smaller than that of one end far away from the valve core; through above-mentioned technical scheme, the problem of the easy wearing and tearing rupture in the middle part of the valve rod of blow-off valve among the prior art has been solved.
Description
Technical Field
The utility model relates to a diffuse valve technical field, specificly relates to furnace roof voltage-sharing diffuse valve scour prevention structure.
Background
The relief valve is a safety early warning device for conveying combustible explosive gas by a pipeline, and when the pressure of a control point exceeds a set value (bubble burst pressure) due to a certain temporary reason, a certain amount of gas is discharged; the blast furnace top charging bucket pressure-equalizing and bleeding system is key equipment which is necessary to be adopted by bell-less top equipment, and is equipment which leads blast furnace semi-clean gas or clean gas to a top charging bucket through a pressure-equalizing pipeline, so that the pressure in the charging bucket is equal to the pressure of the top of the charging bucket, the lower sealing valve is convenient to open for discharging, after the distribution of the blast furnace is finished, the gas in the charging bucket is bled to the normal pressure through the pressure-equalizing and bleeding pipeline, and the upper sealing valve is convenient to open for charging the charging bucket with the charging burden of a receiving bucket.
In a pressure-equalizing bleeding valve used in a conventional blast furnace top feeding system, an oil cylinder pushes a valve rod to act, a valve handle moves downwards to open, airflow is discharged upwards to finish bleeding pressure action, the airflow is discharged upwards in the process to scour the valve rod, and the middle part of the valve rod is easy to wear and break; the furnace top accidents such as discharging failure and the like are caused by the broken part of the erosion abrasion part of the valve rod, and other parts of the damaged part do not reach the abrasion replacement degree, and the whole set of valves still need to be replaced, thus causing the waste of production cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a furnace roof voltage-sharing bleeding valve anti-scouring structure has solved the problem of the easy wearing and tearing rupture in the middle part of the valve rod of bleeding valve among the correlation technique.
The technical scheme of the utility model as follows:
the furnace top pressure equalizing blow-off valve anti-scouring structure comprises
A valve seat having a bleed flow passage;
the valve core is arranged on the valve seat in a sliding manner and is positioned in the bleeding flow passage;
one end of the valve rod is connected with the valve core, and the other end of the valve rod is arranged on the valve seat in a sliding mode;
and also comprises
And the reinforcing sleeve is sleeved on the valve rod, the outer diameter of the reinforcing sleeve is gradually increased, and the outer diameter of one end close to the valve core is smaller than that of one end far away from the valve core.
According to a further technical scheme, the reinforcing sleeve is arranged in a split mode and comprises a first reinforcing block and a second reinforcing block which are arranged in an involutory mode.
According to a further technical scheme, the valve rod is provided with a mounting groove, and the first reinforcing block and the second reinforcing block are arranged in the mounting groove.
In a further aspect, the first reinforcing block and the second reinforcing block each include
A mounting surface arranged in contact with the valve rod;
the end face is connected to one end of the mounting face and is positioned on one side far away from the valve core; and
one end of the flow guide surface is used for being connected with the mounting surface, and the other end of the flow guide surface is connected with the end surface.
According to a further technical scheme, the end face is an arc-shaped face.
According to a further technical scheme, bolt holes are formed in the first reinforcing block and the second reinforcing block.
The further technical proposal also comprises
The access hole is arranged on the valve seat and is positioned on one side of the valve core, and the valve core is close to the access hole when closed; and
and the access cover is arranged on the access hole.
The utility model discloses a theory of operation and beneficial effect do:
1. the utility model discloses set up the reinforcement sleeve on the valve rod, the external diameter of reinforcement sleeve is crescent gradually, make the surface of reinforcement sleeve be the frustum shape face, and the little one end of reinforcement sleeve external diameter is close to the case, when the case is opened, carry out the air current and diffuse, the air current passes the clearance between case and the disk seat, then on the surface of the reinforcement sleeve on the flow direction valve rod, the air current flows along the surface of this slope, make gaseous flow direction change in diffusing the runner, avoided gaseous direct impact valve rod behind the case, and cause the wearing and tearing rupture of valve rod, the life of valve rod has been prolonged by a wide margin.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of various reinforcement sleeves of the present invention;
fig. 3 is a schematic structural view of a reinforcing sleeve according to the present invention;
in the figure: 1. the valve comprises a valve seat, 2 parts of a flow dispersing channel, 3 parts of a valve core, 4 parts of a valve rod, 5 parts of a reinforcing sleeve, 6 parts of a first reinforcing block, 7 parts of a second reinforcing block, 8 parts of a mounting groove, 9 parts of a mounting surface, 10 parts of a terminal surface, 11 parts of a flow guide surface, 12 parts of a bolt hole, 13 parts of an access hole, 14 parts of an access cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts relate to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 3, the embodiment proposes an anti-scouring structure of a furnace top pressure equalizing blow-off valve, which comprises a valve seat 1 with a blow-off flow passage 2; the valve core 3 is arranged on the valve seat 1 in a sliding mode, and the valve core 3 is located in the bleeding flow channel 2; one end of the valve rod 4 is connected with the valve core 3, and the other end of the valve rod is arranged on the valve seat 1 in a sliding mode; the valve rod is characterized by further comprising a reinforcing sleeve 5, the reinforcing sleeve is sleeved on the valve rod 4, the outer diameter of the reinforcing sleeve 5 is gradually increased, and the outer diameter of one end close to the valve core 3 is smaller than the outer diameter of one end far away from the valve core 3.
In this embodiment, in order to solve the problem of the easy wearing and tearing rupture in the middle part of the valve rod of the valve that diffuses in the correlation technique, the anti-scouring structure of furnace roof pressure-equalizing diffusion valve is designed now, set up reinforcing sleeve 5 on valve rod 4, reinforcing sleeve 5's external diameter crescent or reduce, make reinforcing sleeve 5's surface be the frustum profile, and the little one end of reinforcing sleeve 5 external diameter is close to case 3, when case 3 is opened, carry out the air current and diffuse, the air current passes the clearance between case 3 and the disk seat 1, then on the surface of reinforcing sleeve 5 on the flow direction valve rod 4, the surface flow of air current along this slope, make gaseous flow direction change in diffusing runner 2, avoided gaseous direct impact valve rod 4 behind case 3, and cause the wearing and tearing rupture of valve rod 4, valve rod 4's life has been prolonged by a wide margin.
As shown in fig. 1 to 3, the reinforcing sleeve 5 is provided separately and includes a first reinforcing block 6 and a second reinforcing block 7 which are provided to be opposed to each other.
In this embodiment, the split arrangement of the reinforcing sleeve 5 forms the first reinforcing block 6 and the second reinforcing block 7 which are symmetrically arranged, the first reinforcing block 6 and the second reinforcing block 7 are oppositely arranged to form the reinforcing sleeve 5, during installation, the first reinforcing block 6 and the second reinforcing block 7 are directly clamped on the valve rod 4 and then fixed, and the valve rod 4 does not need to be sleeved from one end of the valve rod 4, so that the mounting is simple, the use is convenient, and the manufacturing cost and the mounting cost are low.
As shown in fig. 1 to 3, the valve rod 4 has an installation groove 8, and the first reinforcing block 6 and the second reinforcing block 7 are both disposed in the installation groove 8.
In this embodiment, the height of mounting groove 8 is the same with the height of reinforcing sleeve 5 for first boss 6 and 7 installation joints of second boss take place the skew in mounting groove 8, avoid reinforcing sleeve 5 to receive strong impact back many times, make the position of reinforcing sleeve 5 confirm.
As shown in fig. 2 to 3, each of the first reinforcing block 6 and the second reinforcing block 7 includes a mounting surface 9, and is disposed in contact with the valve rod 4; an end face 10 connected to one end of the mounting face 9 and located on one side far away from the valve core 3; and one end of the flow guide surface 11 is used for being connected with the mounting surface 9, and the other end of the flow guide surface is connected with the end surface 10.
In this embodiment, installation face 9 and valve rod 4 contact setting, two installation faces 9 of first boss 6 and second boss 7 are to closing the internal surface that forms reinforcing sleeve 5, water conservancy diversion face 11 leads the air current, avoid the impact of air current to valve rod 4, two water conservancy diversion faces 11 of first boss 6 and second boss 7 are to closing the conical surface that forms reinforcing sleeve 5, avoid the air current to strike valve rod 4, the wearing and tearing of valve rod 4 have been reduced, the life of valve rod 4 has been prolonged.
As shown in fig. 2, the end face 10 is an arc-shaped face.
In this embodiment, the end face 10 is an arc-shaped face, so that no sharp corner is protruded on the reinforcing sleeve 5, the vortex phenomenon is avoided, and the impact of the airflow on the valve rod 4 is further reduced.
As shown in fig. 1 to 3, the first reinforcing block 6 and the second reinforcing block 7 are provided with bolt holes 12.
In this embodiment, the bolt holes 12 are symmetrically arranged in two numbers, and the axial direction of the bolt holes 12 is perpendicular to the mating surfaces of the first reinforcing block 6 and the second reinforcing block 7, so that the first reinforcing block 6 and the second reinforcing block 7 are connected quickly and are convenient to install. 0
As shown in fig. 1 to 3, the valve further comprises an access hole 13, which is arranged on the valve seat 1 and is located at one side of the valve element 3, and the valve element 3 is close to the access hole 13 when closed; and an access cover 14 provided on the access hole 13.
In this embodiment, the access hole 13 is located on the valve seat 1, the access cover 14 is opened, and the valve rod 4, the valve element 3, and the reinforcing sleeve 5 are inspected, maintained, replaced, and installed through the access hole 13.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the present invention.
Claims (7)
1. The furnace top pressure equalizing blow-off valve anti-scouring structure comprises
A valve seat (1) having a bleed flow passage (2);
the valve core (3) is arranged on the valve seat (1) in a sliding mode, and the valve core (3) is located in the bleeding flow channel (2);
one end of the valve rod (4) is connected with the valve core (3), and the other end of the valve rod is arranged on the valve seat (1) in a sliding manner;
it is characterized by also comprising
And the reinforcing sleeve (5) is sleeved on the valve rod (4), the outer diameter of the reinforcing sleeve (5) is gradually increased, and the outer diameter of one end close to the valve core (3) is smaller than that of one end far away from the valve core (3).
2. The furnace top pressure equalizing blow-off valve anti-scouring structure according to claim 1, characterized in that the reinforcing sleeve (5) is separately arranged and comprises a first reinforcing block (6) and a second reinforcing block (7) which are oppositely arranged.
3. The furnace top pressure equalizing blow-off valve anti-scouring structure according to claim 2, characterized in that the valve rod (4) has a mounting groove (8), and the first reinforcing block (6) and the second reinforcing block (7) are both arranged in the mounting groove (8).
4. The furnace top pressure equalizing blow-off valve anti-scouring structure according to claim 2, characterized in that the first reinforcing block (6) and the second reinforcing block (7) each comprise
A mounting surface (9) provided in contact with the valve rod (4);
the end face (10) is connected to one end of the mounting face (9) and is positioned on one side far away from the valve core (3); and
one end of the flow guide surface (11) is used for being connected with the mounting surface (9), and the other end of the flow guide surface is connected with the end surface (10).
5. The furnace top pressure equalizing blow-off valve anti-scouring structure according to claim 4, characterized in that the end surface (10) is an arc-shaped surface.
6. The furnace top pressure equalizing blow-off valve anti-scouring structure according to claim 2, characterized in that bolt holes (12) are provided on the first reinforcing block (6) and the second reinforcing block (7).
7. The roof pressure equalizing blow-off valve anti-scouring structure according to claim 1, further comprising
The access hole (13) is arranged on the valve seat (1) and is positioned on one side of the valve core (3), and the valve core (3) is close to the access hole (13) when closed; and
and the access cover (14) is arranged on the access hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122132219.5U CN217559171U (en) | 2021-09-06 | 2021-09-06 | Furnace top pressure-equalizing blow-off valve anti-scouring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122132219.5U CN217559171U (en) | 2021-09-06 | 2021-09-06 | Furnace top pressure-equalizing blow-off valve anti-scouring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217559171U true CN217559171U (en) | 2022-10-11 |
Family
ID=83465894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122132219.5U Active CN217559171U (en) | 2021-09-06 | 2021-09-06 | Furnace top pressure-equalizing blow-off valve anti-scouring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217559171U (en) |
-
2021
- 2021-09-06 CN CN202122132219.5U patent/CN217559171U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101120152B (en) | Equalizing flapper for high slam rate applications | |
| CN201236974Y (en) | Non-return valve | |
| CN204226668U (en) | Modulating valve | |
| CN217559171U (en) | Furnace top pressure-equalizing blow-off valve anti-scouring structure | |
| CN113969997B (en) | Double-valve core automatic control valve | |
| CN102344980B (en) | Air dispensation control system for blower system of blast furnace in metallurgical enterprise | |
| CN201973247U (en) | Endless belt type high-voltage explosion prevention electromagnetic valve | |
| CN108662220B (en) | Safety valve with redundant back pressure balancing device | |
| CN202371285U (en) | Diaphragm type anti-cavitation and high-pressure-difference adjustable pressure-reducing valve | |
| CN114109307B (en) | Erosion-resistant normally-open type internal blowout prevention valve | |
| CN203131130U (en) | Check valve | |
| CN205244515U (en) | Diesel engine is two -stage voltage limiting valve for high pressure common rail | |
| CN108506052B (en) | On-line testing and isolating device for emergency trip system of steam turbine generator unit | |
| CN106702993B (en) | The anti-cavitation method of water-delivery valve top sealing | |
| CN106704658B (en) | Two-way automatic cut-off valve | |
| CN203230898U (en) | Common-rail fuel pressure limiting valve | |
| CN220102185U (en) | One-way valve | |
| CN206592362U (en) | A kind of screw thread inserting type Fill valve | |
| CN111609181A (en) | Nuclear grade axial flow type check valve | |
| CN217301766U (en) | Double-sealing flow limiting valve | |
| CN216789241U (en) | Antiscour unloading regulation type trip valve | |
| CN211715842U (en) | Slow-opening slow-closing non-collision check valve | |
| CN220081825U (en) | Hydraulic regulating valve | |
| CN220378906U (en) | Double-valve-core cut-off adjusting type high-pressure-difference adjusting valve | |
| CN210069055U (en) | Piston type safety relief valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |