CN112344085A - Self-operated self-locking valve with vortex breaking function - Google Patents
Self-operated self-locking valve with vortex breaking function Download PDFInfo
- Publication number
- CN112344085A CN112344085A CN202011334657.3A CN202011334657A CN112344085A CN 112344085 A CN112344085 A CN 112344085A CN 202011334657 A CN202011334657 A CN 202011334657A CN 112344085 A CN112344085 A CN 112344085A
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- Prior art keywords
- valve
- valve core
- self
- valve seat
- vortex
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
- F16K31/22—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with the float rigidly connected to the valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
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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
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Float Valves (AREA)
Abstract
The invention provides a self-operated self-locking valve with a vortex breaking function, which comprises a valve seat and a valve core; a liquid outlet is formed in the valve seat, a vortex breaking device is arranged on the valve seat, and the vortex breaking device is positioned above the liquid outlet; a plurality of guide rods with limiting pieces are arranged on the valve seat around the annular breaking swirler; the valve core is of a barrel-shaped structure with an opening at the bottom, guide rings which correspond to the guide rods one by one are arranged on the inner wall of the valve core, and the guide rings are sleeved on the corresponding guide rods in a sliding manner; the guide ring is limited by the limiting piece when sliding upwards; the outer side of the top of the valve core is sequentially provided with a balancing weight and a buoyancy block from bottom to top; when the valve is used, when the liquid level of the working medium is higher than a set value, the valve core rises, so that the bottom of the valve core is separated from the valve seat; when the liquid level of the working medium is lower than a set value, the valve core descends, and the sealing surface at the bottom of the valve core contacts with the sealing surface on the valve seat to form sealing. The invention can solve the problem of high-pressure channeling and low-pressure channeling caused by control loop faults or personnel misoperation in the prior art.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a self-operated self-locking valve with a vortex breaking function.
Background
Containers such as buffer tank, gas-liquid separation jar, reflux drum are the common equipment among the chemical plant equipment for liquid material storage, gas-liquid mixture material separation etc. have the vortex to produce in order to prevent that the liquid phase export, set up broken vortex ware in the exit usually. Chemical materials mostly have the characteristics of combustibility, explosion, toxicity, harm and the like, meanwhile, pressure difference often exists between the upstream and the downstream, and high pressure channeling and low pressure can be caused by too low evacuation of liquid level in a container, so that overpressure of a downstream low-pressure pipeline or equipment is caused.
In order to solve the safety problem, the traditional method is to match a corresponding liquid level SIS interlocking system and a DCS liquid level control system, when the liquid level in the container is reduced to a certain degree, the interlocking is triggered, and a stop valve on an outlet pipeline of the container is closed. For containers with relatively low drainage volumes, the hand valve is typically opened manually directly by a worker staring at the site level gauge for drainage.
For the container of supporting liquid level control system, its configuration is complicated, and the investment is high, and control circuit has certain failure probability, and for the container of manual operation, has personnel's maloperation's risk.
Disclosure of Invention
The invention aims to provide a self-operated self-locking valve with a vortex breaking function, which can solve the problem of high pressure channeling and low pressure channeling caused by control loop faults or misoperation of personnel in the prior art.
The invention is realized by the following technical scheme:
a self-operated self-locking valve with a vortex breaking function comprises a valve seat and a valve core;
a liquid outlet is formed in the valve seat, a vortex breaking device is arranged on the valve seat, and the vortex breaking device is positioned above the liquid outlet; a plurality of guide rods with limiting pieces are arranged on the valve seat around the annular breaking swirler;
the valve core is of a barrel-shaped structure with an opening at the bottom, guide rings which correspond to the guide rods one by one are arranged on the inner wall of the valve core, and the guide rings are sleeved on the corresponding guide rods in a sliding manner; the guide ring is limited by the limiting piece when sliding upwards;
the outer side of the top of the valve core is sequentially provided with a balancing weight and a buoyancy block from bottom to top; when the valve is used, when the liquid level of the working medium is higher than a set value, the valve core rises, so that the bottom of the valve core is separated from the valve seat; when the liquid level of the working medium is lower than a set value, the valve core descends, and the sealing surface at the bottom of the valve core contacts with the sealing surface on the valve seat to form sealing.
Preferably, the sealing surface of the valve seat is designed as a spherical surface, and the sealing surface at the bottom of the valve core is designed as an inner spherical surface matched with the sealing surface of the valve seat.
Furthermore, the bottom of the valve seat and the position below the sealing surface are circumferentially provided with bosses, and when the valve core and the valve seat form sealing, a gap is reserved between the end surface of the bottom of the valve core and the upper end surface of the boss at the bottom of the valve seat.
Preferably, the top of the valve core is longitudinally provided with a connecting rod, and the balancing weight and the buoyancy block are sleeved on the connecting rod.
Preferably, the bottom of the vortex breaker is provided with a fixed support, and the fixed support is fixedly connected to the valve seat through a bolt.
Preferably, three guide rods are uniformly distributed on the valve seat around the annular breaking swirler at an angle of 120 degrees.
Preferably, when the valve core rises to the highest position, the lower end face of the valve core is higher than the upper end face of the vortex breaker.
Preferably, the limiting member is a bolt.
Compared with the prior art, the invention has the following beneficial technical effects:
the vortex breaking device is arranged above the liquid outlet of the valve seat, so that the vortex breaking effect of the vortex breaking device is kept; the valve core can rise or fall by arranging the guide rod and the guide ring, the self-regulation of the resultant force direction of gravity and buoyancy borne by the valve core and a component thereof can be realized according to the height of the liquid level by arranging the buoyancy block, when the liquid level is higher than a set value, the buoyancy is greater than the gravity, the bottom of the valve core is separated from the valve seat, and a working medium can normally flow; when the liquid level is lower than the set value, the buoyancy is lower than the gravity, and the sealing surface at the bottom of the valve core is contacted with the sealing surface on the valve seat to form sealing, so that self-operated opening and closing are realized, and the evacuation of the container is essentially prevented. Through the design of guide bar, can ensure accurate case angle of falling back on the one hand, on the other hand, with the locating part, can guarantee that the valve has sufficient circulation channel when being in the open mode liquid.
Furthermore, the sealing surface of the valve seat is designed to be a spherical surface, and the sealing surface of the valve core is designed to be an inner spherical surface, so that the valve core can still form sealing within a certain angular deviation range.
Furthermore, when the valve core and the valve seat form sealing, a gap is reserved between the end face of the bottom of the valve core and the upper end face of the boss at the bottom of the valve seat, so that the valve seat and the valve core can be sealed through a spherical surface, and the problem that the sealing is not tight due to the contact of the valve core and the boss is avoided.
Drawings
FIG. 1 is a schematic structural view of a self-operated self-locking valve with a vortex breaking function according to the present invention;
FIG. 2 is a top view of the latching valve seat of FIG. 1;
FIG. 3 is a top view of the self-latching valve cartridge of FIG. 1;
the reference numerals are represented as: 1-a valve seat; 2-a valve core; 3-fixing a support; 4-breaking the vortex device; 5-a balancing weight; 6-a buoyancy block; 7-a first fixing nut; 8-pins; 9-a connecting rod; 10-a second fixing nut; 11-a stop; 12-a guide bar; 13-a guide ring; 14-a third fixing nut; 15-bolt; 16-breaking the fixed screwed hole of the eddy current device; 17-a liquid outlet; 18-guide bar threaded holes; 19-connecting rod threaded hole.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
As shown in fig. 1, 2 and 3, the self-locking valve in this embodiment includes a valve seat 1, a valve element 2, and a vortex breaker 4 disposed on the valve seat 1. The top of the valve core 2 is sequentially provided with a balancing weight 5 and a buoyancy block 6 with a hollow structure from bottom to top.
The valve seat 1 is provided with a liquid outlet 17, and the vortex breaker 4 is positioned above the liquid outlet 17. The bottom of the vortex breaker 4 is provided with a fixed support 3, 6 bolt holes are uniformly distributed on the fixed support 3 in a ring-surrounding manner according to an angle of 60 degrees, and the fixed support 3 is in threaded connection with a threaded hole 16 for fixing the vortex breaker on the valve seat 1 through a bolt 15 and is fastened by a nut 14.
The annular breaking vortex device 4 a week on the valve seat 1 has 3 guide bars 12 according to 120 degrees evenly distributed, corresponds on the valve seat 1 and is equipped with 3 guide bar screw holes 18, and guide bar 12 is fixed in on the valve seat 1 through threaded connection.
3 guide rings 13 are uniformly distributed and welded in the valve core 2 according to an angle of 120 degrees, the guide rings 13 are sleeved on the guide rod 12, and the top end of the guide rod 12 is provided with a limiting part 11. The limiting member 11 is preferably a bolt.
The top of the valve core 2 is symmetrically provided with 2 connecting rod threaded holes 19, and the connecting rod 9 is in threaded connection in the connecting rod threaded holes 19.
The balancing weight 5 is provided with 2 holes corresponding to the connecting rod 9 on the valve core 2, and the balancing weight 5 is sleeved on the connecting rod 9 and fastened by a nut 10.
The buoyancy block 6 is provided with 2 holes corresponding to the connecting rod 9 on the valve core 2, and the buoyancy block 6 is sleeved on the connecting rod 9 and fastened by a fixing nut 7 and a pin 8.
The sealing surface of the valve seat 1 is designed to be a spherical surface, the sealing surface of the valve core 2 is designed to be an inner spherical surface, and the two are matched with each other to form sealing.
The welding height of the guide ring 13 welded on the inner wall of the valve core 2 is 20mm higher than that of the upper end face of the valve seat 1 when the valve core 2 and the valve seat 1 form a seal.
The length of the limiting piece 11 at the upper end of the guide rod 12 is larger than the inner diameter of the guide ring 13, and the installation height needs to ensure that the lowest end of the valve core 2 is higher than the upper end face of the vortex breaker 4 when the valve core is lifted to the highest position.
And a gap of 10mm is reserved between the lower end of the valve core 2 and the upper end surface of the boss at the bottom of the valve seat 1 when the valve core 2 and the valve seat 1 form sealing.
For any liquid phase working medium, the size of the buoyancy block 6 is adjusted to ensure that the gravity of the valve core 2 and the upper assembly thereof is smaller than the borne buoyancy when the liquid level is higher than the top end of the buoyancy block 6, and the gravity of the valve core 2 and the upper assembly thereof is larger than the borne buoyancy when the liquid level is lower than the bottom end of the buoyancy block 6.
The working process of the self-operated self-locking valve with the vortex breaking function in the embodiment is as follows:
install the auto-lock valve in the container, when the container began to annotate the liquid, the liquid level was lower (be less than buoyancy piece bottom), and case 2 and subassembly (including guide ring, balancing weight, buoyancy piece, connecting rod and fastener) received gravity is greater than the buoyancy that receives, and the case falls on the disk seat, and the auto-lock valve is in the closed condition.
When the liquid level is higher (higher than the top end of the buoyancy block), the buoyancy force borne by the valve core 2 and the assembly (comprising the guide ring, the balancing weight, the buoyancy block, the connecting rod and the fastener) thereof is larger than the gravity force borne by the valve core, the valve core rises along the guide rod until the guide ring touches the limiting part to stop rising, the self-locking valve is completely opened, and liquid flows in through a gap between the valve core and the valve seat and is discharged from a liquid outlet on the valve seat after breaking the vortex device.
When the container outlet liquid level adjusting device is opened in a fault mode, liquid in the container can be continuously discharged outwards. When the liquid level is lowered and lower than the lower end face of the buoyancy block, the gravity borne by the valve core and the components thereof is larger than the buoyancy borne by the valve core, the valve core descends along the guide rod and falls back to form sealing with the valve seat, and the self-locking valve is closed.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. It will be apparent to those skilled in the art that other variations and modifications may be made in the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments herein. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (8)
1. A self-operated self-locking valve with a vortex breaking function is characterized by comprising a valve seat (1) and a valve core (2);
a liquid outlet is formed in the valve seat (1), a vortex breaking device (4) is arranged on the valve seat (1), and the vortex breaking device (4) is positioned above the liquid outlet; a plurality of guide rods (12) with limiting pieces (11) are arranged on the valve seat (1) around the annular breaking vortex device (4);
the valve core (2) is of a barrel-shaped structure with an opening at the bottom, guide rings (13) which correspond to the guide rods (12) one by one are arranged on the inner wall of the valve core (2), and the guide rings (13) are sleeved on the corresponding guide rods (12) in a sliding manner; the guide ring (13) is limited by the limiting piece (11) when sliding upwards;
the outer side of the top of the valve core (2) is sequentially provided with a balancing weight (5) and a buoyancy block (6) from bottom to top; when the valve is used, when the liquid level of the working medium is higher than a set value, the valve core (2) rises, so that the bottom of the valve core (2) is separated from the valve seat (1); when the liquid level of the working medium is lower than a set value, the valve core (2) descends, and the sealing surface at the bottom of the valve core (2) is in contact with the sealing surface on the valve seat (1) to form sealing.
2. Self-operated self-locking valve with vortex breaking function according to claim 1, characterized in that the sealing surface of the valve seat (1) is designed as a spherical surface, and the sealing surface of the bottom of the valve core (2) is designed as an inner spherical surface matched with the sealing surface of the valve seat (1).
3. The self-operated self-locking valve with the function of breaking vortex flow according to claim 2 is characterized in that a boss is arranged at the bottom of the valve seat (1) and below the sealing surface along the circumferential direction, and when the valve core (2) and the valve seat (1) form a seal, a gap is reserved between the end surface of the bottom of the valve core (2) and the upper end surface of the boss at the bottom of the valve seat (1).
4. The self-operated self-locking valve with the vortex breaking function according to claim 1, wherein a connecting rod (9) is longitudinally arranged at the top of the valve core (2), and the balancing weight (5) and the buoyancy block (6) are sleeved on the connecting rod (9).
5. Self-operated self-locking valve with vortex breaking function according to claim 1, characterized in that the bottom of the vortex breaker (4) is provided with a fixed support (3), and the fixed support (3) is fastened on the valve seat (1) through a bolt (14).
6. The self-operated self-locking valve with the function of breaking vortex flow as claimed in claim 1, wherein three guide rods (12) are uniformly distributed on the valve seat (1) around the ring breaking vortex device (4) at an angle of 120 degrees.
7. The self-operated self-locking valve with the function of breaking vortex flow as claimed in claim 1, wherein when the valve core (2) rises to the highest position, the lower end surface of the valve core (2) is higher than the upper end surface of the vortex breaker (4).
8. Self-operated self-locking valve with vortex breaking function according to claim 1, wherein the limiting member (11) is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334657.3A CN112344085B (en) | 2020-11-24 | 2020-11-24 | Self-operated self-locking valve with vortex breaking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334657.3A CN112344085B (en) | 2020-11-24 | 2020-11-24 | Self-operated self-locking valve with vortex breaking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112344085A true CN112344085A (en) | 2021-02-09 |
| CN112344085B CN112344085B (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011334657.3A Active CN112344085B (en) | 2020-11-24 | 2020-11-24 | Self-operated self-locking valve with vortex breaking function |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1704501A (en) * | 1927-12-05 | 1929-03-05 | John W Force | Automatic cut-off and gauge valve for oil tanks and the like |
| US5096578A (en) * | 1990-08-15 | 1992-03-17 | Texaco Inc. | Vortex breaker for horizontal liquid draw off tray sump |
| CN2246734Y (en) * | 1995-10-21 | 1997-02-05 | 吴艳元 | Automatic water-storing controller |
| US20040238771A1 (en) * | 2003-05-27 | 2004-12-02 | David Smith | Valve assembly |
| CN201401547Y (en) * | 2009-04-10 | 2010-02-10 | 上海普丽盛轻工设备有限公司 | Switch device for floating ball |
| CN104014148A (en) * | 2014-05-09 | 2014-09-03 | 江苏嘉泰蒸发结晶设备有限公司 | Separator vortex preventing device |
| CN210372249U (en) * | 2019-07-24 | 2020-04-21 | 精晶药业股份有限公司 | Float ball type liquid level balance valve |
-
2020
- 2020-11-24 CN CN202011334657.3A patent/CN112344085B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1704501A (en) * | 1927-12-05 | 1929-03-05 | John W Force | Automatic cut-off and gauge valve for oil tanks and the like |
| US5096578A (en) * | 1990-08-15 | 1992-03-17 | Texaco Inc. | Vortex breaker for horizontal liquid draw off tray sump |
| CN2246734Y (en) * | 1995-10-21 | 1997-02-05 | 吴艳元 | Automatic water-storing controller |
| US20040238771A1 (en) * | 2003-05-27 | 2004-12-02 | David Smith | Valve assembly |
| CN201401547Y (en) * | 2009-04-10 | 2010-02-10 | 上海普丽盛轻工设备有限公司 | Switch device for floating ball |
| CN104014148A (en) * | 2014-05-09 | 2014-09-03 | 江苏嘉泰蒸发结晶设备有限公司 | Separator vortex preventing device |
| CN210372249U (en) * | 2019-07-24 | 2020-04-21 | 精晶药业股份有限公司 | Float ball type liquid level balance valve |
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| Publication number | Publication date |
|---|---|
| CN112344085B (en) | 2022-11-04 |
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