CN117145590A - Steam turbine unit sliding pressure operation pressure optimization adjusting steam valve - Google Patents
Steam turbine unit sliding pressure operation pressure optimization adjusting steam valve Download PDFInfo
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- CN117145590A CN117145590A CN202311215742.1A CN202311215742A CN117145590A CN 117145590 A CN117145590 A CN 117145590A CN 202311215742 A CN202311215742 A CN 202311215742A CN 117145590 A CN117145590 A CN 117145590A
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- 238000005457 optimization Methods 0.000 title abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 230000001681 protective effect Effects 0.000 claims abstract description 27
- 238000007664 blowing Methods 0.000 claims abstract description 22
- 238000000605 extraction Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 241000220317 Rosa Species 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a sliding pressure operation pressure optimization adjusting steam valve of a steam turbine unit, and relates to the technical field of adjusting steam valves. The sliding pressure operation pressure optimizing and adjusting steam valve of the steam turbine unit comprises a valve body arranged on the adjusting steam valve, wherein the valve body comprises two symmetrically arranged valve rods, the tops of the valve rods are fixedly connected with connecting blocks, the tops of the valve bodies are connected with two symmetrically arranged protective covers through reset mechanisms, and the number of the protective covers in each group is two. This kind of turbo unit smooth pressure operating pressure optimizes and adjusts steam valve, after the valve rod upwards moves, can use the protection casing to carry out self-sealing protection to the valve rod, avoid its surface to adhere to impurity, simultaneously, can carry out automatic absorption to the air in the protection casing, avoid the surface of valve rod by air oxidation, when the valve rod moves down, can carry out automatic clearance of blowing to impurity such as the dust on valve rod surface, make it more smooth and easy when moving, avoid the jam, guarantee the result of use and the life-span of adjusting the steam valve.
Description
Technical Field
The invention relates to the technical field of regulating steam valves, in particular to a sliding pressure operation pressure optimization regulating steam valve of a turbine unit.
Background
The valve is characterized in that the valve is used for adjusting the steam inlet flow to control the power of the steam turbine, the steam flow entering the steam turbine can be changed according to the instruction of the control unit, so that the controlled parameters of the unit meet the operation requirement, the optimal adjustment of the sliding pressure operation pressure of the steam turbine unit is realized, the valve is mainly composed of a valve body of the adjusting valve, a transmission mechanism and an oil motor, a valve rod is inserted at the top of the valve body, the top of the valve rod is fixedly connected with a connecting block, and when the valve is used, the oil motor and the transmission mechanism drive the valve rod to move up and down through the connecting block, so that the valve disc is opened and closed.
However, when the existing steam turbine unit sliding pressure operation pressure optimization adjusting steam valve is used, when the valve rod moves upwards, the valve rod can be directly exposed in the air, impurities such as dust are easy to adhere to the valve rod, the valve rod is easy to be affected by oxidation of the air, the valve rod is easy to be blocked when moving after long-time use, the valve rod is not smooth enough, and the using effect and the service life of the adjusting steam valve are further affected.
Disclosure of Invention
The invention aims to provide a sliding pressure running pressure optimizing and adjusting steam valve of a steam turbine set, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a turbine unit sliding pressure operating pressure optimizes and adjusts steam valve, includes the valve body that sets up on adjusting steam valve, the valve body includes two valve rods that set up symmetrically, and the top fixedly connected with connecting block of valve rod, the top of valve body is connected with two sets of protection casings that set up symmetrically through canceling release mechanical system, and the quantity of each set of protection casing is two, two the lateral wall that the protection casing is relative is provided with the rubber strip, the top of valve body is provided with a plurality of air extraction mechanism that are used for carrying out absorbing to the air in the protection casing, and the lateral wall of each protection casing is provided with the mechanism of blowing that is used for blowing the clearance to the valve rod;
each air extraction mechanism includes fixed pipe at the valve body top, and has the movable rod through moving mechanism sliding connection in the fixed pipe, the top fixedly connected with intake pipe of fixed pipe, and be provided with first unidirectional mechanism in the intake pipe, the lateral wall of protection casing is fixed to be inserted and is equipped with the exhaust tube, and the other end fixedly connected with rose box of exhaust tube, the lateral wall fixedly connected with connecting pipe of rose box, and fixedly connected with first hose between connecting pipe and the intake pipe, the tip fixedly connected with outlet duct of fixed pipe, and be provided with second unidirectional mechanism in the outlet duct, the lateral wall of connecting pipe is provided with break-make mechanism.
Preferably, the moving mechanism comprises a pushing plate fixedly connected to the side wall of each protective cover, and the pushing plate is fixed with the end part of the moving rod.
Preferably, the reset mechanism comprises two symmetrically arranged first T-shaped guide rods fixedly connected to the side walls of the protective covers, a first spring is sleeved on the side walls of the first T-shaped guide rods, a connecting plate is sleeved on the side walls of the first T-shaped guide rods, the connecting plate is fixed to the top of the valve body, and the protective covers are pushed by a first pushing mechanism.
Preferably, the first pushing mechanism comprises permanent magnets fixedly connected to the side walls of the protective covers, and electromagnets are fixedly connected to the tops of the connecting plates.
Preferably, the blowing mechanism comprises a blowing pipe fixedly inserted into the side wall of each protective cover, and a second hose is fixedly connected between the blowing pipe and the air outlet pipe.
Preferably, the on-off mechanism is arranged at a notch on the side wall of the connecting pipe, a fixed cover is fixedly inserted in the notch, a sliding plate is connected in the fixed cover in a sliding manner through a resetting component, a round hole is formed in the side wall of the sliding plate, and the sliding plate is pushed by a pushing component.
Preferably, the reset component comprises two symmetrically arranged first supporting blocks fixedly connected to the side wall of the sliding plate, two symmetrically arranged second T-shaped guide rods are fixedly connected to the bottom of the first supporting blocks, the lower ends of the second T-shaped guide rods are fixedly connected with second supporting blocks, the second supporting blocks are fixed to the side wall of the fixed cover, and second springs are sleeved on the side wall of the second T-shaped guide rods.
Preferably, the pushing assembly comprises a pushing block fixedly connected to the top of the sliding plate, the pushing block comprises an inclined plane, the side wall of each protecting cover is fixedly connected with a fixing block, and the side wall of the fixing block is fixedly connected with a pushing rod.
Preferably, the first unidirectional mechanism comprises a first conical tube and a first hollow disc which are fixedly connected in the air inlet tube, a third spring is fixedly connected to the top of the first hollow disc, a first ball is fixedly connected to the upper end of the third spring, and the first ball abuts against the inner side wall of the first conical tube.
Preferably, the second unidirectional mechanism comprises a second conical tube and a second hollow disc which are fixedly connected in the air outlet tube, the end part of the second hollow disc is fixedly connected with a fourth spring, the other end of the fourth spring is fixedly connected with a second ball, and the second ball is propped against the inner side wall of the second conical tube.
Compared with the prior art, the invention has the beneficial effects that:
(1) This kind of turbo unit smooth pressure operating pressure optimizes and adjusts steam valve, through setting up air extraction mechanism etc, when the connecting block drives the valve rod and upwards move, at this moment, two protection casings are close to each other under the effect of first spring and move, simultaneously, drive the movable rod through the push plate and remove to the direction of keeping away from the fixed pipe when the protection casing moves, simultaneously, second unidirectional mechanism is closed, first unidirectional mechanism opens, the break-make mechanism disconnection, produce the negative pressure in the fixed pipe this moment, after the connecting block moves in place, two protection casings offset with the lateral wall of valve rod, thereby seal the protection to the valve rod, avoid its surface to adhere to impurity, and, after push rod offsets with the inclined plane, promote the sliding plate and move downwards, simultaneously, the second spring is compressed, thereby make the round hole align with the connecting pipe, at this moment, under the negative pressure effect, with the air in the protection casing carry out automatic absorption, get into the rose through the filter box, after the air after the filtration passes through the connecting pipe, the round hole and first hose get into the fixed pipe, thereby can carry out automatic absorption to the air in the protection casing, avoid the surface of valve rod to be oxidized by air, thereby make smooth and easy when moving, guarantee when the card, service life is prolonged, and steam valve.
(2) This kind of turbine unit smooth pressure operating pressure optimizes and adjusts steam valve, through setting up blowing mechanism etc, when the connecting block drives the valve rod and moves down, switch on the electro-magnet, at this moment, attract two protection casings to keep away from each other and remove, simultaneously, first spring is compressed, simultaneously, drive the movable rod through the push plate and slide in to the fixed pipe, extrude the air in the fixed pipe, and, drive the push rod through the fixed block and move down when the connecting block moves down, at this moment, the sliding plate can upwards move under the effect of second spring and reset, make round hole and connecting pipe stagger, can utilize the sliding plate to carry out shutoff sealing to the connecting pipe, and, at this moment, the second unidirectional mechanism is opened, air in the fixed pipe gets into in the gas-blowing pipe through outlet duct and second hose after being extruded and blowout, thereby can carry out automatic blowing clearance to impurity such as dust on the valve rod surface, make it smooth and easy when moving, avoid the jam, guarantee the result of use and the life-span of adjusting the steam valve.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the position of the air extraction mechanism according to the present invention;
FIG. 3 is a schematic view of a part of a cross-sectional structure of a connection block and a shield of the present invention;
FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 1;
FIG. 5 is an enlarged schematic view of the structure shown at B in FIG. 2;
FIG. 6 is an enlarged schematic view of FIG. 2 at C;
fig. 7 is an enlarged schematic view of the structure at D in fig. 3.
In the figure: 1. a valve body; 101. a valve stem; 102. a connecting block; 2. a reset mechanism; 201. a connecting plate; 202. a first T-shaped guide bar; 203. a first spring; 3. a first pushing mechanism; 301. an electromagnet; 302. a permanent magnet; 4. an on-off mechanism; 401. a notch; 402. a fixed cover; 403. a sliding plate; 404. a round hole; 5. a reset assembly; 501. a second support block; 502. a second T-shaped guide bar; 503. a first support block; 504. a second spring; 6. a pushing assembly; 601. a pushing block; 602. an inclined plane; 603. a fixed block; 604. a push rod; 7. an air blowing mechanism; 701. an air blowing pipe; 702. a second hose; 8. a second unidirectional mechanism; 801. a second tapered tube; 802. a second hollow-out disc; 803. a fourth spring; 804. a second sphere; 9. a first unidirectional mechanism; 901. a first conical tube; 902. a first hollow-out disc; 903. a third spring; 904. a first sphere; 10. a pushing plate; 11. a protective cover; 12. an air extraction mechanism; 1201. a fixed tube; 1202. a moving rod; 1203. an air inlet pipe; 1204. an air outlet pipe; 1205. an exhaust pipe; 1206. a filter box; 1207. a connecting pipe; 1208. a first hose.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a turbine unit sliding pressure operating pressure optimizing and adjusting steam valve, including setting up the valve body 1 on adjusting steam valve, valve body 1 includes the valve rod 101 that two symmetries set up, and the top fixedly connected with connecting block 102 of valve rod 101, the top of valve body 1 is connected with two sets of protection casing 11 that set up symmetrically through canceling release mechanical system 2, and the quantity of each set of protection casing 11 is two, the opposite lateral wall of two protection casings 11 is provided with the rubber strip, the leakproofness when guaranteeing protection casing 11 counterbalance, simultaneously, have certain compression, guarantee the pumping effect of pumping mechanism 12, the top of valve body 1 is provided with a plurality of pumping mechanisms 12 that are used for carrying out absorbing to the air in the protection casing 11, and the lateral wall of each protection casing 11 is provided with the mechanism 7 that blows to valve rod 101 and clear up;
each air extraction mechanism 12 includes fixed pipe 1201 of fixed connection at valve body 1 top, and be provided with movable rod 1202 through moving mechanism sliding connection in the fixed pipe 1201, the top fixedly connected with intake pipe 1203 of fixed pipe 1201, and be provided with first unidirectional mechanism 9 in the intake pipe 1203, the lateral wall of protection casing 11 is fixed to be inserted and is equipped with exhaust pipe 1205, and the other end fixedly connected with rose box 1206 of exhaust pipe 1205, the lateral wall fixedly connected with connecting pipe 1207 of rose box 1206, and fixedly connected with first hose 1208 between connecting pipe 1207 and the intake pipe 1203, the tip fixedly connected with outlet duct 1204 of fixed pipe 1201, and be provided with second unidirectional mechanism 8 in the outlet duct 1204, the lateral wall of connecting pipe 1207 is provided with break-make mechanism 4, after valve rod 101 upwards moves, can use protection casing 11 to carry out self-sealing protection to valve rod 101, avoid its surface to adhere to impurity, simultaneously, can carry out automatic absorption to the air in the protection casing 11, avoid the surface of valve rod 101 to be oxidized by the air, when valve rod 101 moves down, can carry out automatic blowing to impurity such as dust on the valve rod 101 surface, make it clear up smoothly when moving, guarantee to adjust the effect and life when moving, the throttle valve.
The moving mechanism comprises pushing plates 10 fixedly connected to the side walls of the protecting covers 11, the pushing plates 10 are fixed to the end portions of the moving rods 1202, and when the protecting covers 11 move, the moving rods 1202 are driven to move in the fixed tube 1201 through the pushing plates 10.
The reset mechanism 2 comprises two symmetrically arranged first T-shaped guide rods 202 fixedly connected to the side walls of the protective covers 11, a first spring 203 is sleeved on the side walls of the first T-shaped guide rods 202, a connecting plate 201 is sleeved on the side walls of the first T-shaped guide rods 202, the connecting plate 201 is fixed to the top of the valve body 1, the protective covers 11 move to be pushed by the first pushing mechanism 3, and the protective covers 11 move to be guided and reset.
The first pushing mechanism 3 comprises permanent magnets 302 fixedly connected to the side walls of the protection covers 11, the top of each connecting plate 201 is fixedly connected with an electromagnet 301, when the connecting block 102 drives the valve rod 101 to move upwards, the electromagnet 301 is powered off, at the moment, the two protection covers 11 move close to each other under the action of the first spring 203, when the connecting block 102 drives the valve rod 101 to move downwards, the electromagnet 301 is powered on, and at the moment, the two protection covers 11 are attracted to move away from each other.
The blowing mechanism 7 comprises a blowing pipe 701 fixedly inserted into the side wall of each protective cover 11, a second hose 702 is fixedly connected between the blowing pipe 701 and the air outlet pipe 1204, and air in the fixed pipe 1201 is extruded and then enters the blowing pipe 701 through the air outlet pipe 1204 and the second hose 702 to be sprayed out, so that impurities such as dust on the surface of the valve rod 101 can be automatically blown and cleaned, the dust can be more smoothly moved, and jamming is avoided.
The on-off mechanism 4 is arranged at a notch 401 on the side wall of the connecting pipe 1207, a fixed cover 402 is fixedly inserted in the notch 401, a sliding plate 403 is connected in the fixed cover 402 in a sliding manner through a reset component 5, a round hole 404 is formed in the side wall of the sliding plate 403, the sliding plate 403 is moved through a pushing component 6 to be pushed, when the connecting block 102 drives the valve rod 101 to move upwards, the sliding plate 403 is pushed to move downwards through the pushing component 6, the round hole 404 is aligned with the connecting pipe 1207, at the moment, the on-off mechanism 4 is opened, when the connecting block 102 drives the valve rod 101 to move downwards, the sliding plate 403 can move upwards to reset under the action of the reset component 5, the round hole 404 is staggered with the connecting pipe 1207, the connecting pipe 1207 can be plugged and sealed by the sliding plate 403, and at the moment, the on-off mechanism 4 is closed.
The reset component 5 comprises two symmetrically arranged first supporting blocks 503 fixedly connected to the side wall of the sliding plate 403, two symmetrically arranged second T-shaped guide rods 502 are fixedly connected to the bottom of the first supporting blocks 503, the lower ends of the second T-shaped guide rods 502 are fixedly connected with second supporting blocks 501, the second supporting blocks 501 are fixed to the side wall of the fixed cover 402, and second springs 504 are sleeved on the side wall of the second T-shaped guide rods 502 and play a role in guiding and resetting the movement of the sliding plate 403.
The pushing assembly 6 comprises a pushing block 601 fixedly connected to the top of the sliding plate 403, the pushing block 601 comprises an inclined plane 602, the side wall of each protection cover 11 is fixedly connected with a fixing block 603, the side wall of the fixing block 603 is fixedly connected with a pushing rod 604, and when the pushing rod 604 abuts against the inclined plane 602, the sliding plate 403 is pushed to move downwards.
The first unidirectional mechanism 9 comprises a first conical tube 901 and a first hollow disc 902 which are fixedly connected in the air inlet pipe 1203, a third spring 903 is fixedly connected to the top of the first hollow disc 902, a first ball 904 is fixedly connected to the upper end of the third spring 903, the first ball 904 abuts against the inner side wall of the first conical tube 901, when the moving rod 1202 moves away from the fixed tube 1201, negative pressure is generated in the fixed tube 1201, meanwhile, the first ball 904 moves downwards to enable the first ball 904 to abut against the inner side wall of the first conical tube 901 no longer, the first unidirectional mechanism 9 is opened, when the moving rod 1202 slides into the fixed tube 1201, air in the fixed tube 1201 is extruded, meanwhile, the inner side wall of the first conical tube 901 keeps abutting against, and the first unidirectional mechanism 9 is closed.
The second unidirectional mechanism 8 comprises a second conical tube 801 and a second hollow disc 802 which are fixedly connected in the air outlet tube 1204, the end part of the second hollow disc 802 is fixedly connected with a fourth spring 803, the other end of the fourth spring 803 is fixedly connected with a second ball 804, the second ball 804 is propped against the inner side wall of the second conical tube 801, when the moving rod 1202 moves away from the fixed tube 1201, negative pressure is generated in the fixed tube 1201, meanwhile, the second ball 804 is propped against the inner side wall of the second conical tube 801, the second unidirectional mechanism 8 is closed, when the moving rod 1202 slides into the fixed tube 1201, air in the fixed tube 1201 is extruded, meanwhile, the second ball 804 is not propped against the inner side wall of the second conical tube 801, and the second unidirectional mechanism 8 is opened.
Working principle: when the valve rod 101 is driven by the connecting block 102 to move upwards, the electromagnet 301 is powered off, at the moment, the two protective covers 11 move close to each other under the action of the first spring 203, meanwhile, the protective covers 11 drive the moving rod 1202 to move away from the fixed pipe 1201 through the pushing plate 10 when moving, meanwhile, the second one-way mechanism 8 is closed, the first one-way mechanism 9 is opened, the on-off mechanism 4 is disconnected, at the moment, negative pressure is generated in the fixed pipe 1201, and after the connecting block 102 moves in place, the two protective covers 11 are propped against the side wall of the valve rod 101, so that the valve rod 101 is sealed and protected, and impurities are prevented from adhering to the surface of the valve rod 101;
when the pushing rod 604 abuts against the inclined plane 602, the sliding plate 403 is pushed to move downwards, meanwhile, the second spring 504 is compressed, so that the round hole 404 is aligned with the connecting pipe 1207, at the moment, under the action of negative pressure, air in the protecting cover 11 is automatically absorbed, enters the filtering box 1206 through the air extraction pipe 1205 to be filtered, and the filtered air enters the fixing pipe 1201 through the air inlet pipe 1203 after passing through the connecting pipe 1207, the round hole 404 and the first hose 1208, so that the air in the protecting cover 11 can be automatically absorbed, the surface of the valve rod 101 is prevented from being oxidized by the air, the valve rod 101 is enabled to be smoother in moving, the clamping is avoided, and the use effect and the service life of the regulating steam valve are ensured;
when the connecting block 102 drives the valve rod 101 to move downwards, the electromagnet 301 is electrified, at this time, the two protective covers 11 are attracted to move away from each other, meanwhile, the first spring 203 is compressed, at the same time, the pushing plate 10 drives the moving rod 1202 to slide into the fixed pipe 1201, air in the fixed pipe 1201 is extruded, and when the connecting block 102 moves downwards, the pushing rod 604 is driven by the fixing block 603 to move downwards, at this time, the sliding plate 403 can move upwards to reset under the action of the second spring 504, so that the round hole 404 and the connecting pipe 1207 are staggered, the connecting pipe 1207 can be plugged and sealed by the sliding plate 403, and the second unidirectional mechanism 8 is opened, at this time, air in the fixed pipe 1201 enters the air blowing pipe 701 through the air outlet pipe 1204 and the second hose 702 after being extruded and is sprayed out, so that impurities such as dust on the surface of the valve rod 101 can be blown and cleaned automatically, the air is prevented from being jammed during movement, and the use effect and service life of the regulating steam valve are ensured.
Claims (10)
1. The utility model provides a steam turbine unit smooth pressure operating pressure optimizes and adjusts steam valve, is including setting up valve body (1) on adjusting the steam valve, valve body (1) are including valve rod (101) that two symmetries set up, and the top fixedly connected with connecting block (102) of valve rod (101), its characterized in that: the top of the valve body (1) is connected with two groups of symmetrically arranged protective covers (11) through a reset mechanism (2), the number of each group of protective covers (11) is two, rubber strips are arranged on the opposite side walls of the two protective covers (11), a plurality of air extraction mechanisms (12) for absorbing air in the protective covers (11) are arranged on the top of the valve body (1), and air blowing mechanisms (7) for blowing and cleaning the valve rods (101) are arranged on the side walls of the protective covers (11);
each air extraction mechanism (12) comprises a fixed pipe (1201) fixedly connected to the top of the valve body (1), a moving rod (1202) is slidably connected in the fixed pipe (1201) through a moving mechanism, an air inlet pipe (1203) is fixedly connected to the top of the fixed pipe (1201), a first one-way mechanism (9) is arranged in the air inlet pipe (1203), an air extraction pipe (1205) is fixedly inserted into the side wall of the protective cover (11), the other end of the air extraction pipe (1205) is fixedly connected with a filter box (1206), a connecting pipe (1207) is fixedly connected to the side wall of the filter box (1206), a first hose (1208) is fixedly connected between the connecting pipe (1207) and the air inlet pipe (1203), an air outlet pipe (1204) is fixedly connected to the end part of the fixed pipe (1201), a second one-way mechanism (8) is arranged in the air outlet pipe (1204), and an on-off mechanism (4) is arranged on the side wall of the connecting pipe (1207).
2. The slip pressure operating pressure optimizing steam valve of a steam turbine unit as set forth in claim 1, wherein: the moving mechanism comprises pushing plates (10) fixedly connected to the side walls of the protective covers (11), and the pushing plates (10) are fixed with the end parts of the moving rods (1202).
3. The slip pressure operating pressure optimizing steam valve of a steam turbine unit as set forth in claim 2, wherein: the reset mechanism (2) comprises two symmetrically arranged first T-shaped guide rods (202) fixedly connected to the side walls of the protective covers (11), first springs (203) are sleeved on the side walls of the first T-shaped guide rods (202), connecting plates (201) are sleeved on the side walls of the first T-shaped guide rods (202), the connecting plates (201) are fixed to the tops of the valve bodies (1), and the protective covers (11) are pushed by the first pushing mechanism (3).
4. A slip pressure operating pressure optimizing steam valve for a steam turbine unit as set forth in claim 3, wherein: the first pushing mechanism (3) comprises permanent magnets (302) fixedly connected to the side walls of the protective covers (11), and electromagnets (301) are fixedly connected to the tops of the connecting plates (201).
5. The slip pressure operating pressure optimizing steam valve of a steam turbine unit as set forth in claim 1, wherein: the blowing mechanism (7) comprises a blowing pipe (701) fixedly inserted into the side wall of each protective cover (11), and a second hose (702) is fixedly connected between the blowing pipe (701) and the air outlet pipe (1204).
6. The slip pressure operating pressure optimizing steam valve of a steam turbine unit as set forth in claim 1, wherein: the on-off mechanism (4) is provided with a notch (401) on the side wall of the connecting pipe (1207), a fixed cover (402) is fixedly inserted in the notch (401), a sliding plate (403) is connected in the fixed cover (402) in a sliding manner through a resetting component (5), a round hole (404) is formed in the side wall of the sliding plate (403), and the sliding plate (403) is moved to be pushed through a pushing component (6).
7. The optimal regulation steam valve for sliding pressure operation pressure of steam turbine set according to claim 6, wherein: the reset assembly (5) comprises a first supporting block (503) fixedly connected to the side wall of the sliding plate (403) and two symmetrically arranged second T-shaped guide rods (502) fixedly connected to the bottom of the first supporting block (503), the lower ends of the second T-shaped guide rods (502) are fixedly connected with second supporting blocks (501), the second supporting blocks (501) are fixed to the side wall of the fixed cover (402), and second springs (504) are sleeved on the side wall of the second T-shaped guide rods (502).
8. The optimal regulation steam valve for sliding pressure operation pressure of steam turbine set according to claim 6, wherein: the pushing assembly (6) comprises pushing blocks (601) fixedly connected to the tops of the sliding plates (403), the pushing blocks (601) comprise inclined planes (602), the side walls of the protecting covers (11) are fixedly connected with fixing blocks (603), and the side walls of the fixing blocks (603) are fixedly connected with pushing rods (604).
9. The slip pressure operating pressure optimizing steam valve of a steam turbine unit as set forth in claim 1, wherein: the first unidirectional mechanism (9) comprises a first conical tube (901) and a first hollow disc (902) which are fixedly connected in an air inlet tube (1203), a third spring (903) is fixedly connected to the top of the first hollow disc (902), a first ball (904) is fixedly connected to the upper end of the third spring (903), and the first ball (904) abuts against the inner side wall of the first conical tube (901).
10. The slip pressure operating pressure optimizing steam valve of a steam turbine unit as set forth in claim 1, wherein: the second unidirectional mechanism (8) comprises a second conical tube (801) and a second hollow disc (802) which are fixedly connected in the air outlet tube (1204), the end part of the second hollow disc (802) is fixedly connected with a fourth spring (803), the other end of the fourth spring (803) is fixedly connected with a second ball (804), and the second ball (804) is propped against the inner side wall of the second conical tube (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311215742.1A CN117145590A (en) | 2023-09-20 | 2023-09-20 | Steam turbine unit sliding pressure operation pressure optimization adjusting steam valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311215742.1A CN117145590A (en) | 2023-09-20 | 2023-09-20 | Steam turbine unit sliding pressure operation pressure optimization adjusting steam valve |
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| CN117145590A true CN117145590A (en) | 2023-12-01 |
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| CN202311215742.1A Pending CN117145590A (en) | 2023-09-20 | 2023-09-20 | Steam turbine unit sliding pressure operation pressure optimization adjusting steam valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118462847A (en) * | 2024-07-09 | 2024-08-09 | 浙江赛杰阀门制造有限公司 | A double plate sealing gate valve to avoid clogging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118462847A (en) * | 2024-07-09 | 2024-08-09 | 浙江赛杰阀门制造有限公司 | A double plate sealing gate valve to avoid clogging |
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