CN112443687A - High-temperature-resistant, safe and explosion-proof quick-opening blind plate structure - Google Patents
High-temperature-resistant, safe and explosion-proof quick-opening blind plate structure Download PDFInfo
- Publication number
- CN112443687A CN112443687A CN201910835250.XA CN201910835250A CN112443687A CN 112443687 A CN112443687 A CN 112443687A CN 201910835250 A CN201910835250 A CN 201910835250A CN 112443687 A CN112443687 A CN 112443687A
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- CN
- China
- Prior art keywords
- quick
- opening blind
- blind plate
- gland
- boss
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/24—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
Abstract
The invention relates to a high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure which is characterized by comprising a quick-opening blind plate body, a gland, a rotating shaft and the like, the lower side of the hand wheel is connected with a lead screw, the lead screw is sleeved at one end of a shaft arm, the other end of the shaft arm is sleeved on a rotating shaft, the lower side of the rotating shaft penetrates through the mounting groove on the side surface of the cylinder seat and is fixed by the nut, the lower end of the screw rod is connected with the connector, the quick-opening blind plate body and the gland are in a coaxial double-plate structure, when the gland is rotated, the inclined plane of the boss of the outer ring and the boss on the upper edge of the cylinder body seat generate axial thrust to push the quick-opening blind plate to translate and compress the graphite sealing ring, and the quick-opening blind plate is fixedly connected with the positioning plate, under the effect of guiding axle and pivot, the quick-opening blind plate does not produce the friction with the graphite sealing washer, prevents that the impaired production of graphite sealing washer from revealing, has also improved the life of graphite sealing washer.
Description
Technical Field
The invention relates to the technical field of a fast-opening blind plate of a pyrolysis furnace, in particular to a high-temperature-resistant, safe and explosion-proof fast-opening blind plate structure.
Background
The quick-opening blind plate is a mechanical device which is used on a circular opening of a pressure pipeline or a pressure container and can realize quick opening or closing.
The working temperature of the fast-opening blind plate of the pyrolysis furnace is about 400 ℃, a large amount of combustible gas is generated in a pipeline during heating, and once a sealing ring is damaged, leakage is generated, and detonation and other problems can occur.
The existing quick-opening blind plate is limited by a sealing ring material, and the service temperature is generally as follows: -20 ℃ to 90 ℃; when the pressure pipeline or the pressure container meets extreme conditions, namely the pressure rises suddenly and even the pressure is released everywhere when the pressure is exploded, the potential safety hazard is brought to equipment;
when the existing quick-opening blind plate is sealed, the blind plate and the sealing ring can move relatively, so that the sealing ring is easily damaged and leaks. Aiming at the technical defects existing when the existing quick-opening blind plate is applied to a pyrolysis furnace, the invention provides a high-temperature-resistant, safe and explosion-proof quick-opening blind plate.
Disclosure of Invention
According to the technical problems, the invention provides a high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure which is characterized by comprising a quick-opening blind plate body, a gland, a rotating shaft, a rotating arm, a hand wheel, a lead screw, a connector, an end cover, a gear shaft, a positioning plate, a guide shaft, a pinion, a large gear, a large nut, a mandrel, a disc spring, a cylinder, a graphite sealing ring and a cylinder seat, wherein the lower side of the hand wheel is connected with the lead screw, the lead screw is sleeved at one end of a shaft arm, the other end of the shaft arm is sleeved on the rotating shaft, the lower side of the rotating shaft penetrates through an installation groove in the side surface of the cylinder seat and is fixed through a nut, the lower end of the lead screw is connected with the connector, the connector is installed inside the end cover, the end cover is fixed on the positioning, a gear shaft is arranged in the mounting hole, a pinion is arranged on the lower side of the gear shaft and is meshed with a gearwheel, the gearwheel is arranged on a gland, a quick-opening blind plate body is arranged on the lower side of the gland, a disc spring is arranged between the gland and the quick-opening blind plate body, the lower side of the connector is connected with a mandrel, the mandrel sequentially penetrates through a positioning plate, the gland and the quick-opening blind plate body, and a large nut is fixed on the mandrel between the gland and the positioning plate; barrel seat one end and pivot are connected, the guiding axle is installed to the barrel seat other end, the inside recess that is equipped with of barrel seat, install the graphite sealing washer in the recess, barrel seat top edge has boss, recess to constitute, this boss, recess cross arrangement are on body seat upside edge.
The core shaft and the quick-opening blind plate body are welded into a whole, a group of involutory disc springs are arranged between the quick-opening blind plate body and the gland, and the disc springs are compressed by a certain height through the large locknuts so that the quick-opening blind plate body obtains certain pre-pressure; the bull gear and the gland are connected into a whole through a bolt; the screw rod and the connector are connected into a whole through a bolt; the positioning plate is connected with the mandrel through a small lock nut and connected with the end cover through a bolt; the cylinder body and the cylinder body seat are welded into a whole; the rotating arm is connected with the screw rod through a screw rod nut; the lead screw is connected with the hand wheel through a key and a bolt; the positioning plate and the rotating arm can rotate around the rotating shaft together.
The barrel is installed to barrel seat downside.
The outer ring of the gland is provided with a boss A, the side face of the boss A is of an inclined structure, and the boss A is overlapped with the boss on the upper edge of the cylinder seat when the quick opening blind plate is closed.
The hand wheel is connected with the shaft arm in a threaded mode.
The mounting holes are located on the inner sides of the positioning holes.
The disc spring is selected according to the pressure in the pipeline connected with the cylinder body.
The invention has the beneficial effects that: a group of involutory disc springs are added between the quick-opening blind plate body and the gland, the pressure of the quick-opening blind plate can be set according to the difference of the pressure of the disc springs, the pressure of the quick-opening blind plate can be set through the shape selection of the disc spring and the adjustment of the compression amount of the disc spring according to the requirement, when the pressure in the pipeline is higher than the pressure set by the disc spring, the disc spring is tightened, but because the pressure plate can not move at the moment, therefore, the quick-opening blind plate body can move upwards, the quick-opening blind plate body is separated from the graphite sealing ring, the gas in the pipeline is led to the outside through the groove of the cylinder body seat, thereby the pressure in the pipeline is released quickly, the safety of the equipment operation is greatly improved, when partial gas leaks and the pressure is less than the bearing force of the disc spring, the quick-opening blind plate body and the graphite sealing ring are sealed, because only a small amount of gas leaks, the risk is not high, and the problems that a large amount of gas leaks to generate deflagration and the like are avoided.
The quick-opening blind plate body and the gland are of a coaxial double-plate structure, when the gland is rotated, the inclined plane of the boss on the outer ring of the quick-opening blind plate and the boss on the upper edge of the cylinder body seat generate axial thrust to push the quick-opening blind plate to move horizontally to compress the graphite sealing ring, and the quick-opening blind plate is fixedly connected with the positioning plate, so that the quick-opening blind plate and the graphite sealing ring do not generate friction under the action of the guide shaft and the rotating shaft, the graphite sealing ring is prevented from being damaged to generate leakage, and the service life of the graphite sealing ring is.
The graphite sealing ring is made of graphite, the melting point of the graphite is 3652 ℃, the graphite sealing ring can bear high temperature, and the high-temperature resistance of the graphite sealing ring is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic opening view of the present invention.
In the figure: the quick-opening blind plate comprises a quick-opening blind plate body 1, a gland 2, a rotating shaft 3, a rotating arm 4, a hand wheel 5, a lead screw 6, a connector 7, an end cover 8, a gear shaft 9, a positioning plate 10, a guide shaft 11, a small gear 12, a large gear 13, a large nut 14, a core shaft 15, a small nut 16, a disc spring 17, a cylinder 18, a graphite sealing ring 19 and a cylinder seat 20.
Detailed Description
The application is illustrated in the accompanying drawings:
it should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified. In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following examples.
Example 1
The invention provides a high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure, which comprises a quick-opening blind plate body 1, a gland 2, a rotating shaft 3, a rotating arm 4, a hand wheel 5, a screw rod 6, a connector 7, an end cover 8, a gear shaft 9, a positioning plate 10, a guide shaft 11, a pinion 12, a bull gear 13, a large lock nut 14, a core shaft 15, a disc spring 17, a cylinder 18, a graphite sealing ring 19 and a cylinder seat 20, wherein the lower side of the hand wheel 5 is connected with the screw rod 6, the screw rod 6 is sleeved at one end of a shaft arm, the other end of the shaft arm is sleeved on the rotating shaft 3, the lower side of the rotating shaft 3 penetrates through an installation groove on the side surface of the cylinder seat 20 and is fixed through a nut, the lower end of the screw rod 6 is connected with the connector 7, the connector 7 is installed inside the end cover 8, the, a gear shaft 9 is arranged in the mounting hole, a pinion 12 is arranged on the lower side of the gear shaft 9, the pinion 12 is meshed with a gearwheel 13, the gearwheel 13 is arranged on a gland 2, a quick-opening blind plate body 1 is arranged on the lower side of the gland 2, a disc spring 17 is arranged between the gland 2 and the quick-opening blind plate body 1, the lower side of a connector 7 is connected with a mandrel 15, the mandrel 15 sequentially penetrates through a positioning plate 10, the gland 2 and the quick-opening blind plate body 1, and a large nut is fixed on the mandrel 15 between the gland 2 and the positioning plate 10; one end of the cylinder seat 20 is connected with the rotating shaft 3, the guide shaft 11 is installed at the other end of the cylinder seat 20, a groove is formed in the cylinder seat 20, a graphite sealing ring 19 is installed in the groove, a boss and a groove are formed in the edge of the upper side of the cylinder seat 20, and the boss and the groove are arranged on the edge of the upper side of the cylinder seat in a crossed mode. The core shaft 15 and the quick-opening blind plate body 1 are welded into a whole, a group of involutory disc springs 17 are arranged between the quick-opening blind plate body 1 and the gland 2, and the disc springs 17 are compressed by a certain height through the large lock nuts 14 to ensure that the quick-opening blind plate body 1 obtains a certain pre-pressure; the gearwheel 13 and the gland 2 are connected into a whole through bolts; the screw rod 6 and the connector 7 are connected into a whole through a bolt; the positioning plate 10 is connected with the mandrel 15 through a small lock nut 16 and connected with the end cover 8 through a bolt; the cylinder 18 and the cylinder seat 20 are welded into a whole; the rotating arm 4 is connected with a screw rod 6 through a screw rod 6 nut; the lead screw 6 is connected with the hand wheel 5 by a key and a bolt; the positioning plate 10 is rotatable together with the swivel arm 4 about the swivel axis 3. The cylinder 18 is mounted on the lower side of the cylinder seat 20. The outer ring of gland 2 is provided with boss A, and boss A side is the slope structure, and boss A and the boss coincidence of barrel seat 20 upside edge when closing fast open-blind board. The hand wheel 5 is connected with the shaft arm in a threaded mode. The mounting hole is located the locating hole inboard. The disc spring 17 is selected according to the pressure in the pipe to which the cylinder 18 is connected.
Example 2
When the quick-opening blind plate needs to be closed, the hand wheel 5 is rotated, the hand wheel 5 drives the screw rod 6 to rotate downwards, and the positioning plate 10, the gland 2 and the quick-opening blind plate 1 are moved downwards along the rotating shaft 3 through the connector 7 until the positioning hole of the positioning plate 10 penetrates into the guide shaft 11, the quick-opening blind plate body 1 presses the graphite sealing ring 19, and the hand wheel 5 stops rotating, then a torque wrench is used for rotating the gear shaft 9, the gear shaft 9 drives the pinion 12 to rotate, the pinion 12 drives the large gear 13 and the gland 2 to rotate together around the mandrel 15, at the moment, the inclined plane of the boss on the outer ring of the gland 2 and the boss on the cylinder seat 20 generate axial thrust, the quick-opening blind plate body 1 is pushed by the disc spring 17 to compress the graphite sealing ring 19 along the axial direction, and meanwhile, the disc spring 17 is further compressed, so that the quick-opening blind plate body 1 reaches the final preset pressure until the boss on the outer ring of the gland 2 is superposed with the boss on the upper edge of the cylinder seat 20.
Example 3
When the quick-opening blind plate is opened: firstly, a torque wrench is used for rotating a gear shaft 9, so that a pinion 12 drives a large gear 13 and a gland 2 to rotate together around a mandrel 15 until a boss on the outer ring of the gland 2 is completely staggered with a boss on the upper edge of a cylinder seat 20, at the moment, a hand wheel 5 is rotated to drive a screw rod 6, a positioning plate 10, the gland 2 and a quick-opening blind plate 1 are enabled to move upwards along a rotating shaft 3 through a connector 7, and when the bottom plane of the quick-opening blind plate 1 is moved to be higher than the upper plane of the cylinder seat 20, a rotating arm 4 can be rotated along the rotating shaft 3, so that the quick-opening blind plate 1 is opened to.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure is characterized by comprising a quick-opening blind plate body, a gland, a rotating shaft, a rotating arm, a hand wheel, a lead screw, a connector, an end cover, a gear shaft, a positioning plate, a guide shaft, a pinion, a gear wheel, a large nut, a mandrel, a disc spring, a cylinder, a graphite sealing ring and a cylinder seat, wherein the lower side of the hand wheel is connected with the lead screw, the lead screw is sleeved at one end of a shaft arm, the other end of the shaft arm is sleeved on the rotating shaft, the lower side of the rotating shaft penetrates through a mounting groove in the side surface of the cylinder seat and is fixed through a nut, the lower end of the lead screw is connected with the connector, the connector is mounted inside the end cover, the end cover is fixed on the positioning plate through a bolt, one end of the, a small gear is mounted on the lower side of the gear shaft and meshed with a large gear, the large gear is mounted on a pressing cover, a quick-opening blind plate body is arranged on the lower side of the pressing cover, a disc spring is arranged between the pressing cover and the quick-opening blind plate body, the lower side of the connector is connected with a mandrel, the mandrel sequentially penetrates through a positioning plate, the pressing cover and the quick-opening blind plate body, and a large nut is fixed on the mandrel between the pressing cover and the positioning plate; barrel seat one end and pivot are connected, the guiding axle is installed to the barrel seat other end, the inside recess that is equipped with of barrel seat, install the graphite sealing washer in the recess, barrel seat top edge has boss, recess to constitute, this boss, recess cross arrangement are on body seat upside edge.
2. The structure of the high temperature resistant, safe and explosion proof quick-opening blind plate according to claim 1, wherein the mandrel is welded with the quick-opening blind plate body as a whole, a set of involutory disc springs are arranged between the quick-opening blind plate body and the gland, and the disc springs are compressed by a certain height through the large locknuts so that the quick-opening blind plate body obtains a certain pre-pressure; the bull gear and the gland are connected into a whole through a bolt; the screw rod and the connector are connected into a whole through a bolt; the positioning plate is connected with the mandrel through a small lock nut and connected with the end cover through a bolt; the cylinder body and the cylinder body seat are welded into a whole; the rotating arm is connected with the screw rod through a screw rod nut; the lead screw is connected with the hand wheel through a key and a bolt; the positioning plate and the rotating arm can rotate around the rotating shaft together.
3. The structure of the high temperature resistant, safe and explosion proof quick-opening blind plate as claimed in claim 1, wherein the cylinder is installed at the lower side of the cylinder seat.
4. The structure of the high-temperature-resistant, safe and explosion-proof quick-opening blind plate as claimed in claim 1, wherein the outer ring of the gland is provided with a boss A, the side surface of the boss A is of an inclined structure, and the boss A is overlapped with the boss on the upper side edge of the cylinder base when the quick-opening blind plate is closed.
5. The high temperature resistant, safe and explosion proof quick-opening blind plate structure according to claim 1, wherein the hand wheel and the shaft arm are connected by a thread.
6. A high temperature resistant, safe and explosion proof quick-opening blind structure according to claim 1, wherein said mounting hole is located inside the positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910835250.XA CN112443687A (en) | 2019-09-05 | 2019-09-05 | High-temperature-resistant, safe and explosion-proof quick-opening blind plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910835250.XA CN112443687A (en) | 2019-09-05 | 2019-09-05 | High-temperature-resistant, safe and explosion-proof quick-opening blind plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112443687A true CN112443687A (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910835250.XA Pending CN112443687A (en) | 2019-09-05 | 2019-09-05 | High-temperature-resistant, safe and explosion-proof quick-opening blind plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112443687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704646A (en) * | 2022-03-30 | 2022-07-05 | 浙江欧菲石油设备有限公司 | Quick-opening blind plate device |
-
2019
- 2019-09-05 CN CN201910835250.XA patent/CN112443687A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704646A (en) * | 2022-03-30 | 2022-07-05 | 浙江欧菲石油设备有限公司 | Quick-opening blind plate device |
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