CN114858434A - Exhaust device for hydrostatic test of steam turbine cylinder - Google Patents
Exhaust device for hydrostatic test of steam turbine cylinder Download PDFInfo
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- CN114858434A CN114858434A CN202210524155.XA CN202210524155A CN114858434A CN 114858434 A CN114858434 A CN 114858434A CN 202210524155 A CN202210524155 A CN 202210524155A CN 114858434 A CN114858434 A CN 114858434A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses an exhaust device for a hydraulic test of a steam turbine cylinder, which relates to the technical field of the hydraulic test of the steam turbine cylinder and comprises a water tank, a supporting mechanism and a pressure discharge mechanism, wherein an inverted T-shaped bracket capable of rotatably supporting a first supporting roller is rotatably arranged at the end part of the first supporting roller, the side walls of two sides of the first V-shaped supporting plate are rotatably arranged between the top ends of two first supporting rods through connecting rods, the side walls of two sides of a second V-shaped supporting plate are rotatably arranged between the top ends of two second supporting rods through connecting rods, the pressure discharge mechanism comprises an air cylinder adjustably arranged at the upper end of the water tank, a push rod extending into the air cylinder is inserted into a threaded hole in a sliding mode, and the end part of an air guide pipe is fixedly connected with a connecting cap connected with an exhaust port of the steam turbine cylinder. The invention utilizes the supporting mechanism to stabilize the steam turbine cylinder, so that the steam turbine cylinder is completely immersed below the liquid level of the water tank, and utilizes the pressure discharge mechanism to collect the air in the cylinder, thereby ensuring that the air can be completely discharged completely in the process of pressurizing and irrigating, and improving the pressure boosting speed.
Description
Technical Field
The invention relates to the technical field of hydraulic tests of steam turbine cylinders, in particular to an exhaust device for the hydraulic tests of the steam turbine cylinders.
Background
In the production process of the steam turbine cylinder, the operation of a hydrostatic test needs to be carried out in the cylinder, in the process of pressurizing in the cylinder of the steam turbine cylinder, an exhaust connecting pipe is not arranged at the top in the cylinder of the steam turbine cylinder, air cannot be completely exhausted in the pressurizing and water filling process, partial space in the cylinder is a gas phase space, the air is continuously compressed in the continuous pressurizing process due to the fact that the compression coefficient of the air is much larger than that of water, the pressure is slowly boosted, the pressure boosting is slow in the pressurizing process, and the hydrostatic test efficiency is influenced, so that the exhaust device for the hydrostatic test of the steam turbine cylinder is designed, and the problem is solved conveniently.
Disclosure of Invention
The invention aims to provide an exhaust device for a hydraulic test of a steam turbine cylinder, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an exhaust device for a hydrostatic test of a steam turbine cylinder comprises a water tank, a supporting mechanism and a pressure discharge mechanism, wherein the upper end of the water tank is of an open structure, test water is filled in the water tank, the supporting mechanism is arranged at the bottom end inside the water tank, the steam turbine cylinder is stabilized by the supporting mechanism, so that the steam turbine cylinder is completely immersed below the liquid level of the water tank, air cannot be completely discharged in the pressurizing and watering process, partial space inside the cylinder is a gas phase space, the air is continuously compressed in the continuously pressurizing process due to the fact that the compression coefficient of the air is much larger than that of the water, the pressure is slowly increased, the pressure increase in the pressurizing process is slow, the efficiency of the hydrostatic test is influenced, the pressure discharge mechanism is used for collecting air inside the steam turbine cylinder, the air can be completely discharged in the pressurizing and watering process, partial space inside the cylinder is prevented from being a gas phase space, and the pressure increase speed is improved, the hydrostatic test efficiency is improved.
The supporting mechanism comprises a first supporting roller, a second supporting roller, a first V-shaped supporting plate and a second V-shaped supporting plate, wherein an inverted T-shaped bracket capable of rotatably supporting the first supporting roller is rotatably arranged at the end part of the first supporting roller, two first supporting rods are vertically arranged at the upper end of the outer wall of the first supporting roller, the side walls at two sides of the first V-shaped supporting plate are rotatably arranged between the top ends of the two first supporting rods through connecting rods, a torsional spring is arranged at the rotating part, the end part of the second supporting roller is fixedly spliced with the side walls at two sides in the water tank, two second supporting rods are vertically arranged at the upper end of the outer wall of the second supporting roller, the side walls at two sides of the second V-shaped supporting plate are rotatably arranged between the top ends of the two second supporting rods through connecting rods, the torsional spring is arranged at the rotating part, one end of a steam turbine cylinder to be tested is placed at the upper end of the second V-shaped supporting plate, the second V-shaped supporting plate can rotate around the rotating part of the two second supporting rods under the influence of the gravity of the steam turbine cylinder, the torsion spring generates torsion potential energy, so that one end of the steam turbine cylinder is erected at one end inside the water tank.
According to the position of the other end of the steam turbine, the inverted T-shaped support at the end part of the first supporting roller horizontally slides along the top end face inside the water tank, a first V-shaped supporting plate between the top ends of the two first supporting rods is conveniently horizontally adjusted and supported at the supporting position inside the water tank until the first V-shaped supporting plate is adjusted to the position right below the other end inside the steam turbine cylinder, the other end of the steam turbine cylinder is placed at the upper end of the first V-shaped supporting plate, the first V-shaped supporting plate is influenced by gravity of the steam turbine cylinder and can rotate around the rotating position of the two first supporting rods, and the torsion spring generates torsional potential energy so that the other end of the steam turbine cylinder is emptied and erected at the other end inside the water tank.
The pressure relief mechanism includes the adjustable inflator that sets up in the water tank upper end, the screw hole with the inside intercommunication of inflator is seted up to the inflator upper end, the inside slip of screw hole is pegged graft and is had the push rod that extends to the inflator inside, the bottom mounting of push rod is equipped with the pull piece with the slip laminating of inflator inner wall, the bottom of inflator is connected with the air duct, and the tip fixedly connected with of air duct is connected with the connecting cap of being connected with steam turbine cylinder gas vent, water with the inside filling test of water tank usefulness, make the steam turbine cylinder immerse below the water tank liquid level completely, the exhaust vent connection that the cap and steam turbine cylinder seted up in advance will be connected, the push rod upwards mentions along the inflator inside afterwards, drive the pull piece and upwards synchronous sliding along the inflator inner wall, produce the negative pressure and take the inside air of steam turbine cylinder body out completely, it has partial space to avoid the jar inside to be gaseous phase space, lead to step up very slowly.
In further embodiment, the outer wall of push rod is fixed to be cup jointed and is located the thread sealing post of pull piece upper end, and the thread sealing post rotates through external screw thread and screw hole inside and pegs graft, and after the push rod lifted up the pull piece upwards and produced the negative pressure and extract steam turbine cylinder air, the air was kept in the inflator temporarily, utilizes the thread sealing post to peg graft in the screw hole on follow-up and inflator top, and the push rod position is restricted, and pull piece position is restricted equally, avoids the interior air of inflator to be pushed again in the steam turbine cylinder body.
In a further embodiment, two inverted L-shaped supports are symmetrically and fixedly arranged on the outer wall of the air cylinder, a support block capable of sliding along the upper end of the water tank is fixedly arranged at the bottom end of each inverted L-shaped support, an inverted T-shaped sliding block is fixedly arranged at the bottom end of each support block, an inverted T-shaped sliding groove in sliding clamping connection with the inverted T-shaped sliding block is formed in the upper end of the water tank, and the position of the air cylinder is adjusted according to the position of the exhaust hole of the air cylinder of the steam turbine, namely the specific position of the pressure discharge mechanism can be adjusted by horizontally sliding the inverted T-shaped sliding blocks at the bottom ends of the two inverted L-shaped supports along the interior of the inverted T-shaped sliding groove.
In a further embodiment, the end, far away from each other, of the upper end of the first V-shaped supporting plate and the upper end of the second V-shaped supporting plate are both vertically and fixedly provided with a limiting baffle, the two limiting baffles are limited at the end part of the steam turbine cylinder, and the steam turbine cylinder can be prevented from being separated from the first V-shaped supporting plate and the second V-shaped supporting plate.
In a further embodiment, L-shaped support frames are fixedly arranged on the side walls of the inverted T-shaped supports at two sides, which are far away from the second supporting roller, sleeve pipes are fixedly arranged at the end parts of the two L-shaped support frames, sleeve shafts are rotatably inserted in the sleeve pipes, worms are fixedly arranged at the bottom ends of the sleeve shafts, turbines matched with the worms are fixedly sleeved on the outer walls of the first supporting rollers, and according to the supporting requirements, the sleeve shaft is rotated in the sleeve to drive the worm to synchronously rotate, the rotating worm can drive the worm wheel on the outer wall of the first supporting roller to synchronously rotate, so that the inclination angles of the two first supporting rods are changed, namely the height of the first V-shaped supporting plate is changed, the height of the first V-shaped supporting plate is adjusted to be below the liquid level of the water tank according to the test requirement, so that the cylinder of the steam turbine can be completely immersed below the liquid level, the effective operation of the test is ensured, and the principle of the transmission of the turbine and the worm is utilized to determine that the turbine cannot automatically rotate reversely.
In a further embodiment, the inner wall of the sleeve is provided with an annular rotating groove, the outer wall of the sleeve shaft is fixedly sleeved with an annular block rotationally clamped with the annular rotating groove, and the annular block is freely rotated in the annular rotating groove, so that the sleeve shaft can be ensured to freely rotate in the sleeve, and the sleeve can be prevented from falling from the sleeve.
The through hole that slides with the gag lever post grafting is seted up to sleeve shaft and worm, and the outer wall symmetry of gag lever post is fixed and is equipped with spacing slider, and the spacing breach with the slip joint of spacing slider is seted up to the inner wall of through hole, inserts the gag lever post into the through hole, and spacing slider and spacing breach joint just can drive sleeve shaft and worm synchronous rotation through rotating the gag lever post simultaneously.
In a further embodiment, the bottom fixing of gag lever post is equipped with the clamp plate, and the outer wall of gag lever post has cup jointed the spring that is located between worm and the clamp plate, and the bottom fixing of clamp plate is equipped with the fixture block, and the inside bottom face of water tank sets up the draw-in groove with the fixture block joint, utilizes the elasticity of spring can slide the gag lever post down along the through hole, can drive the fixture block joint of the bottom of clamp plate in the draw-in groove of corresponding position, ensures that first V type layer board supported position does not change.
In a further embodiment, rollers capable of rolling along the bottom end surface of the water tank interior are rotatably arranged on two sides of the bottom end of the inverted T-shaped support, and the rollers are used for replacing the inverted T-shaped support to horizontally slide along the bottom end surface of the water tank interior, so that the speed of adjusting the position of the first V-shaped supporting plate is increased.
In a further embodiment, a plurality of convex blocks with conical structures are fixedly arranged at the upper ends of the first V-shaped supporting plate and the second V-shaped supporting plate, and the contact static friction force between the convex blocks with the conical structures and the outer wall of the steam turbine cylinder is increased, so that the steam turbine cylinder is prevented from swinging on the first V-shaped supporting plate and the second V-shaped supporting plate.
Preferably, based on the above method for operating the exhaust device for the hydraulic test of the steam turbine cylinder, the method comprises the following steps:
a1, utilize supporting mechanism to stabilize the steam turbine cylinder for the steam turbine cylinder soaks below the water tank liquid level completely, utilizes the pressure extraction mechanism to collect the inside air of steam turbine cylinder, ensures to be pressing and irritates the water in-process and can totally discharge the air totally, avoids that the cylinder is inside to have partial space to be the gas phase space, improves the speed of stepping up, improves hydrostatic test efficiency.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to an exhaust device for a hydrostatic test of a steam turbine cylinder, which is characterized in that a support mechanism is utilized to stabilize the steam turbine cylinder, so that the steam turbine cylinder is completely immersed below the liquid level of a water tank, then a pressure discharge mechanism is utilized to collect air in the steam turbine cylinder, the air can be completely discharged in the pressurizing and water filling process, partial space in the cylinder is prevented from being a gas phase space, the pressure boosting speed is increased, and the hydrostatic test efficiency is improved.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a partial cross-sectional view of the pressure venting mechanism of the present invention;
FIG. 3 is a half sectional view of the water tank of the present invention;
FIG. 4 is a schematic structural view of a first support roller and a first V-shaped pallet according to the present invention;
FIG. 5 is a schematic structural view of a second support roller and a second V-shaped pallet according to the present invention;
FIG. 6 is a partial structural view of the supporting mechanism of the present invention;
FIG. 7 is a half-sectional view of the bushing of the present invention;
fig. 8 is an exploded view of the sleeve and quill arrangement of the present invention.
In the figure: 1. a water tank; 11. an inverted T-shaped chute; 12. a card slot; 2. a pressure discharge mechanism; 21. an inverted L-shaped bracket; 22. a supporting block; 23. an air cylinder; 24. a push rod; 25. an air duct; 26. a connecting cap; 27. drawing the block; 28. a threaded sealing post; 3. a support mechanism; 31. a first support bar; 32. a first V-shaped supporting plate; 33. a limit baffle; 34. a limiting rod; 35. a second V-shaped supporting plate; 36. a second support bar; 37. a bump; 38. a first support roller; 39. a turbine; 310. an inverted T-shaped bracket; 311. a roller; 312. an L-shaped support frame; 313. a sleeve; 314. a limiting slide block; 315. a worm; 316. pressing a plate; 317. a second support roller; 318. a spring; 319. a clamping block; 320. an annular rotating groove; 321. a sleeve shaft; 322. and (4) a ring block.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, 2 and 4, the embodiment provides an exhaust device for a hydraulic test of a steam turbine cylinder, which includes a water tank 1, a supporting mechanism 3 and a pressure-releasing mechanism 2, wherein the upper end of the water tank 1 is of an open structure and is filled with test water, the supporting mechanism 3 is arranged at the bottom end inside the water tank 1, the steam turbine cylinder is stabilized by the supporting mechanism 3, so that the steam turbine cylinder is completely immersed below the liquid level of the water tank 1, air cannot be completely discharged completely during the pressure-releasing and water-filling process, and a part of the space inside the cylinder is a gas-phase space, because the compression coefficient of air is much greater than that of water, the air is continuously compressed during the continuous pressure-releasing process, the pressure-releasing process is slow, the pressure-releasing process affects the hydraulic test efficiency, the pressure-releasing mechanism 2 is used for collecting air inside the steam turbine cylinder, so as to ensure that the air can be completely discharged during the pressure-releasing and water-filling process, and partial space in the cylinder is prevented from being a gas phase space, so that the boosting speed is increased, and the hydrostatic test efficiency is improved.
The supporting mechanism 3 comprises a first supporting roller 38, a second supporting roller 317, a first V-shaped supporting plate 32 and a second V-shaped supporting plate 35, the end part of the second supporting roller 317 is fixedly connected with the side walls of the two sides inside the water tank 1 in an inserting mode, two second supporting rods 36 are perpendicularly arranged at the upper end of the outer wall of the second supporting roller 317, the side walls of the two sides of the second V-shaped supporting plate 35 are rotatably arranged between the top ends of the two second supporting rods 36 through connecting rods, a torsional spring is arranged at the rotating position, one end of a steam turbine cylinder to be tested is placed at the upper end of the second V-shaped supporting plate 35, the second V-shaped supporting plate 35 is influenced by the gravity of the steam turbine cylinder and can rotate around the rotating position of the two second supporting rods 36, the torsional spring generates potential energy torsion, and one end of the steam turbine cylinder is erected at one end inside the water tank 1.
The end part of the first supporting roller 38 is rotatably provided with an inverted T-shaped bracket 310 capable of rotatably supporting the first supporting roller 38, the upper end of the outer wall of the first supporting roller 38 is vertically provided with two first supporting rods 31, the side walls of the two sides of the first V-shaped supporting plate 32 are rotatably arranged between the top ends of the two first supporting rods 31 through connecting rods, a torsional spring is arranged at the rotating position, according to the other end position of the steam turbine, the inverted T-shaped bracket 310 at the end part of the first supporting roller 38 is horizontally slid along the top end surface in the water tank 1, so that the supporting position of the first V-shaped supporting plate 32 between the top ends of the two first supporting rods 31 is horizontally adjusted in the water tank 1 until the first V-shaped supporting plate 32 is adjusted to be right below the other end in the steam turbine cylinder, the other end of the steam turbine cylinder is arranged at the upper end of the first V-shaped supporting plate 32, and the first V-shaped supporting plate 32 can rotate around the rotating position of the two first supporting rods 31 under the gravity effect of the steam turbine cylinder, the torsion spring generates torsion potential energy, so that the other end of the steam turbine cylinder is erected at the other end inside the water tank 1.
The pressure discharge mechanism 2 comprises an air cylinder 23 which is adjustably arranged at the upper end of the water tank 1, two inverted L-shaped supports 21 are symmetrically and fixedly arranged on the outer wall of the air cylinder 23, a supporting block 22 which can slide along the upper end of the water tank 1 is fixedly arranged at the bottom end of each inverted L-shaped support 21, an inverted T-shaped sliding block is fixedly arranged at the bottom end of each supporting block 22, an inverted T-shaped sliding groove 11 which is connected with the inverted T-shaped sliding block in a sliding and clamping mode is formed in the upper end of the water tank 1, the position of the air cylinder 23 is adjusted according to the position of an exhaust hole of a steam turbine cylinder, namely the inverted T-shaped sliding block at the bottom end of each inverted L-shaped support 21 horizontally slides along the inside of the inverted T-shaped sliding groove 11, and the specific position of the pressure discharge mechanism 2 can be adjusted.
The screw hole with the inside intercommunication of inflator 23 is seted up to inflator 23 upper end, the inside slip of screw hole is pegged graft there is the push rod 24 that extends to the inside of inflator 23, the bottom mounting of push rod 24 is equipped with the pull piece 27 with the inside sliding fit of inflator 23, the bottom of inflator 23 is connected with air duct 25, and the tip fixedly connected with of air duct 25 is connected with the connecting cap 26 of being connected with steam turbine cylinder gas vent, with the water of 1 inside filling test usefulness of water tank, make the steam turbine cylinder completely immerse below the water tank 1 liquid level, the exhaust hole connection that will connect cap 26 and steam turbine cylinder set up in advance, push rod 24 is upwards mentioned along the inside of inflator 23 afterwards, drive pull piece 27 along the ascending synchronous slip of inflator 23 inner wall, produce the negative pressure and take out the inside air of steam turbine cylinder body completely, avoid the cylinder inside to have partial space to be gaseous space, lead to stepping up very slowly.
Example two
Referring to fig. 1-8, a further improvement is made on the basis of embodiment 1:
because the inverted T-shaped support 310 can horizontally slide along the bottom end surface in the water tank 1, the position of the first V-shaped support plate 32 can be randomly adjusted, so that steam turbine cylinders placed on the first V-shaped support plate 32 and the second V-shaped support plate 35 are easy to fall off, the position of the first V-shaped support plate 32 cannot be randomly adjusted, L-shaped support frames 312 are fixedly arranged on the side walls of the inverted T-shaped support 310 at two sides far away from the second support roller 317, sleeve pipes 313 are fixedly arranged at the end parts of the two L-shaped support frames 312, sleeve shafts 321 are rotatably inserted in the sleeve pipes 313, worms 315 are fixedly arranged at the bottom ends of the sleeve shafts 321, turbines 39 matched with the worms 315 are fixedly sleeved on the outer walls of the first support rollers 38, the sleeve shafts 321 are rotated in the sleeve pipes 313 according to support requirements, the worms 315 can be driven to synchronously rotate, and the rotated worms 315 can drive the turbines 39 on the outer walls of the first support rollers 38 to synchronously rotate, so that the inclination angles of the two first supporting rods 31 are changed, that is, the heights of the first V-shaped supporting plates 32 are changed.
According to the test requirement, the height of the first V-shaped supporting plate 32 is adjusted to be below the liquid level of the water tank 1, so that the steam turbine cylinder can be completely immersed below the liquid level, the test is ensured to be effectively carried out, and the turbine 39 can be determined not to automatically rotate reversely by utilizing the transmission principle of the turbine 39 and the worm 315.
In order to ensure that the sleeve shaft 321 freely rotates in the sleeve 313, the inner wall of the sleeve 313 is provided with an annular rotating groove 320, the outer wall of the sleeve shaft 321 is fixedly sleeved with an annular block 322 which is rotationally clamped with the annular rotating groove 320, and the annular block 322 freely rotates in the annular rotating groove 320, so that the sleeve shaft 321 can be ensured to freely rotate in the sleeve 313, and the sleeve 313 can be prevented from falling out of the sleeve 313.
Through set shaft 321 and worm 315 offer with the through hole of gag lever post 34 slip grafting, the outer wall symmetry of gag lever post 34 is fixed and is equipped with stop slide 314, the inner wall of through hole offer with stop slide 314 slip joint's spacing breach, insert gag lever post 34 through hole, stop slide 314 and spacing breach joint simultaneously, just can drive sleeve shaft 321 and worm 315 synchronous rotation through rotating gag lever post 34.
After the position of the first V-shaped supporting plate 32 is adjusted to the position below the end of the steam turbine cylinder, it is necessary to ensure that the position of the inverted T-shaped bracket 310 cannot be changed at will, a pressing plate 316 is fixedly arranged at the bottom end of the limiting rod 34, a spring 318 between a worm 315 and the pressing plate 316 is sleeved on the outer wall of the limiting rod 34, a clamping block 319 is fixedly arranged at the bottom end of the pressing plate 316, a clamping groove 12 clamped with the clamping block 319 is formed in the bottom end face inside the water tank 1, the limiting rod 34 can slide down along the through hole by the elasticity of the spring 318, the clamping block 319 at the bottom end of the pressing plate 316 can be driven to be clamped in the clamping groove 12 at the corresponding position, and it is ensured that the supporting position of the first V-shaped supporting plate 32 is not changed.
EXAMPLE III
Referring to fig. 1-5, a further improvement is made on the basis of embodiment 2:
the inverted T-shaped support 310 can generate large friction force when horizontally sliding along the bottom end face in the water tank 1, the position of the first V-shaped support plate 32 can be quickly adjusted, the rollers 311 capable of rolling along the bottom end face in the water tank 1 are arranged on two sides of the bottom end of the inverted T-shaped support 310 in a rotating mode, the rollers 311 are used for replacing the inverted T-shaped support 310 to horizontally slide along the bottom end face in the water tank 1, and the position adjusting speed of the first V-shaped support plate 32 is improved.
Through all fixing the lug 37 that is equipped with a plurality of toper structure in the upper end of first V type layer board 32 and second V type layer board 35, utilize the lug 37 increase of toper type structure and steam turbine cylinder outer wall contact static friction, avoid the steam turbine cylinder at first V type layer board 32 and the swing of second V type layer board 35.
The one end that the upper end of first V type layer board 32 and second V type layer board 35 kept away from each other all vertical fixation is equipped with limit baffle 33, utilizes two limit baffle 33 restrictions at the tip of steam turbine cylinder, can avoid the steam turbine cylinder to break away from on first V type layer board 32 and the second V type layer board 35.
In order to avoid the drawing block 27 from sliding downwards along the interior of the air cylinder 23, a threaded sealing column 28 positioned at the upper end of the drawing block 27 is fixedly sleeved on the outer wall of the push rod 24, the threaded sealing column 28 is rotatably inserted into the threaded hole through external threads, when the push rod 24 lifts the drawing block 27 upwards to generate negative pressure to draw air in the cylinder of the steam turbine air cylinder, the air is temporarily stored in the air cylinder 23, then the threaded sealing column 28 is inserted into the threaded hole in the top end of the air cylinder 23, the position of the push rod 24 is limited, the position of the drawing block 27 is also limited, and the air in the air cylinder 23 is prevented from being pushed into the steam turbine air cylinder again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an exhaust apparatus that is used for hydrostatic test of steam turbine cylinder to use, includes water tank (1), supporting mechanism (3) and row's pressure mechanism (2), water tank (1) upper end is open structure, and inside filling has experimental water of using, its characterized in that: the supporting mechanism (3) is arranged at the bottom end inside the water tank (1);
the supporting mechanism (3) comprises a first supporting roller (38), a second supporting roller (317), a first V-shaped supporting plate (32) and a second V-shaped supporting plate (35), the end part of the first supporting roller (38) is rotated to be provided with an inverted T-shaped support (310) capable of rotatably supporting the first supporting roller (38), two first supporting rods (31) are perpendicularly arranged at the upper end of the outer wall of the first supporting roller (38), the side walls at the two sides of the first V-shaped supporting plate (32) are arranged between the top ends of the two first supporting rods (31) through connecting rods in a rotating mode, a torsional spring is arranged at the rotating position, the end part of the second supporting roller (317) is fixedly spliced with the side walls at the two sides of the inner part of the water tank (1), two second supporting rods (36) are perpendicularly arranged at the upper end of the outer wall of the second supporting roller (317), the side walls at the two sides of the second V-shaped supporting plate (35) are rotatably arranged between the top ends of the two second supporting rods (36) through connecting rods, and a torsional spring is arranged at the rotating position;
arrange pressure mechanism (2) including adjustable setting inflator (23) in water tank (1) upper end, inflator (23) upper end offer with the inside screw hole that communicates of inflator (23), the inside slip of screw hole is pegged graft and is had push rod (24) that extend to inflator (23) inside, the bottom mounting of push rod (24) is equipped with the pull piece (27) of inflator (23) inner wall slip laminating, the bottom of inflator (23) is connected with air duct (25), and the tip fixedly connected with of air duct (25) is connected with connecting cap (26) of being connected with steam turbine cylinder gas vent.
2. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 1, wherein: the outer wall of the push rod (24) is fixedly sleeved with a thread sealing column (28) located at the upper end of the drawing block (27), and the thread sealing column (28) is rotatably inserted into the threaded hole through external threads.
3. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 1, wherein: the outer wall symmetry of inflator (23) is fixed to be equipped with two L type supports (21) that stand upside down, the bottom mounting of L type support (21) that stands upside down is equipped with can be along water tank (1) gliding tray (22) in upper end, the bottom mounting of tray (22) is equipped with handstand T type slider, water tank (1) upper end is seted up with handstand T type spout (11) of handstand T type slider slip joint.
4. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 1, wherein: and one ends, far away from each other, of the upper ends of the first V-shaped supporting plate (32) and the second V-shaped supporting plate (35) are vertically and fixedly provided with limit baffles (33).
5. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 1, wherein: the side wall of one side of keeping away from second backing roll (317) of both sides handstand T type support (310) all fixes and is equipped with L type support frame (312), and two L type support frame (312) end fixing are equipped with sleeve pipe (313), sleeve pipe (313) inside is rotated and is pegged graft and has sleeve shaft (321), the bottom mounting of sleeve shaft (321) is equipped with worm (315), the outer wall of first backing roll (38) is fixed to be cup jointed turbine (39) that match with worm (315).
6. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 5, wherein: an annular rotating groove (320) is formed in the inner wall of the sleeve (313), and an annular block (322) rotationally clamped with the annular rotating groove (320) is fixedly sleeved on the outer wall of the sleeve shaft (321);
the through hole that slides with gag lever post (34) grafting is seted up in cover axle (321) and worm (315), the outer wall symmetry of gag lever post (34) is fixed and is equipped with limiting slide block (314), the spacing breach with limiting slide block (314) slip joint is seted up to the inner wall of through hole.
7. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 6, wherein: the utility model discloses a water tank, including gag lever post (34), gag lever post (34) bottom mounting is equipped with clamp plate (316), spring (318) that are located between worm (315) and clamp plate (316) have been cup jointed to the outer wall of gag lever post (34), the bottom mounting of clamp plate (316) is equipped with fixture block (319), draw-in groove (12) with fixture block (319) joint are seted up to the inside bottom face of water tank (1).
8. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 1, wherein: and both sides of the bottom end of the inverted T-shaped support (310) are rotatably provided with rollers (311) capable of rolling along the bottom end surface in the water tank (1).
9. The exhaust apparatus for the hydrostatic test of a steam turbine cylinder according to claim 1, wherein: the upper ends of the first V-shaped supporting plate (32) and the second V-shaped supporting plate (35) are respectively fixedly provided with a plurality of bumps (37) with conical structures.
10. An exhaust apparatus for a hydraulic test of a steam turbine cylinder according to claim 1, characterized in that:
a1, utilize supporting mechanism (3) to stabilize the steam turbine cylinder for the steam turbine cylinder soaks below water tank (1) liquid level completely, utilizes pressure relief mechanism (2) to collect the inside air of steam turbine cylinder, ensures to be beating to press and irritate the in-process and can all discharge the air totally, avoids that the cylinder is inside to have partial space to be the gas phase space, improves the speed of stepping up, improves hydrostatic test efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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