CN113008546A - Portable safety valve calibration equipment and calibration method - Google Patents
Portable safety valve calibration equipment and calibration method Download PDFInfo
- Publication number
- CN113008546A CN113008546A CN202110229967.7A CN202110229967A CN113008546A CN 113008546 A CN113008546 A CN 113008546A CN 202110229967 A CN202110229967 A CN 202110229967A CN 113008546 A CN113008546 A CN 113008546A
- Authority
- CN
- China
- Prior art keywords
- safety valve
- mounting
- mounting seat
- flange
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- G01M13/003—Machine valves
-
- 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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Safety Valves (AREA)
Abstract
The application relates to portable safety valve calibration equipment which comprises a workbench, a control console, a pressure gauge and an installation assembly, wherein the workbench is arranged on the workbench; the console is used for connecting and controlling an air source; the mounting assembly comprises a mounting cylinder, a mounting seat and a support sleeve, and the mounting cylinder is fixedly mounted on the workbench; the mounting seat is integrally of an annular structure, the mounting seat is provided with a plurality of positioning pins which are used for being connected with the flange holes of the air inlet flange in a penetrating way, the outer peripheral wall of the mounting seat is provided with external threads, and the inner peripheral wall of the mounting cylinder is provided with internal threads matched with the external threads; a support sleeve is arranged in the mounting cylinder and used for supporting the lower surface of an air inlet flange of the safety valve; the mount pad is split type structure, and the mount pad includes left semi-ring and right semi-ring, and one side that left semi-ring is close to right semi-ring is equipped with the location arch, and right semi-ring is equipped with the positioning groove with the protruding adaptation of location. Installation component simple structure in this application makes check-up equipment whole comparatively light, easily carries the transport.
Description
Technical Field
The application relates to the field of valve detection technology, in particular to portable safety valve calibration equipment and a calibration method.
Background
The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation. The safety valve must be pressure tested before it can be used. The safety valve calibration stand is a device for simulating the working environment of a safety valve in an off-line manner, increasing the internal pressure to the jump of the safety valve and displaying the jump pressure of the safety valve through a pressure gauge on the device. The sealing test pressure of the tripping pressure (also called starting pressure and setting pressure) of the safety valve can be verified.
The safety valve calibration stand on the market at present is generally provided with a pneumatic or hydraulic clamping device, wherein the pneumatic clamping device is used for clamping the safety valve by using a large-caliber cylinder and using compressed gas or nitrogen as a medium; the hydraulic clamping mode adopts a hydraulic clamping device, the clamping device uses a hydraulic oil cylinder to clamp the safety valve, and the required equipment comprises the hydraulic oil cylinder, a hydraulic oil pump, a connected hydraulic oil pipe and a hydraulic control system; the large-diameter cylinder of the pneumatic clamping device is large in size, so that the whole equipment is large in size and inconvenient to carry, and the hydraulic clamping device is inconvenient to carry and install due to the fact that the number of required accessories is large.
Disclosure of Invention
In order to enable safety valve verification equipment for verifying the safety valve to be carried and transported more easily, the application provides portable safety valve verification equipment and a verification method.
The application provides a portable safety valve calibration device and a calibration method, which adopt the following technical scheme:
a portable safety valve calibration device comprises a workbench, a control console, a pressure gauge and an installation assembly; the console is used for connecting and controlling an air source; the mounting assembly comprises a mounting cylinder, a mounting seat and a support sleeve, wherein the mounting cylinder is provided with an upward opening and is fixedly mounted on the workbench; the control console is connected with the mounting cylinder through a pipeline, and the pressure gauge is connected with the mounting cylinder through a pipeline; the mounting base is integrally of an annular structure and provided with a plurality of positioning pins, the positioning pins are used for being connected with flange holes of the air inlet flange in a penetrating mode, external threads are arranged on the outer peripheral wall of the mounting base, and internal threads matched with the external threads are arranged on the inner peripheral wall of the mounting cylinder; a support sleeve is arranged in the mounting cylinder and used for supporting the lower surface of an air inlet flange of the safety valve; the mounting seat is of a split structure and comprises a left half ring and a right half ring, wherein a positioning protrusion is arranged on one side of the left half ring close to the right half ring, and a positioning groove matched with the positioning protrusion is arranged on the right half ring; the left half ring and the right half ring have magnetism, and the left half ring and the right half ring are detachably connected through magnetic attraction.
By adopting the technical scheme, when the safety valve is installed on the portable safety valve calibration equipment, the left half ring and the right half ring are spliced into the installation seat, aligned and positioned through the positioning protrusion and the positioning groove, and attracted and connected into a whole through magnetic attraction so as to be convenient for operation, the positioning pin on the installation seat and the air inlet flange penetrating through the safety valve are connected with the installation seat and the installation cylinder through threads; in the process, under the positioning action of the positioning pin, the safety valve and the mounting seat can be directly rotated to drive the mounting seat to be screwed into the mounting cylinder until the air inlet flange of the safety valve abuts against the support sleeve, so that the mounting seat and the support sleeve form a clamping action on the air inlet flange of the safety valve; the installation assembly for installing the safety valve is simple in structure relative to a pneumatic clamping device and a hydraulic clamping device, the overall weight of the equipment is greatly reduced, and the carrying and carrying work of the safety valve calibration equipment is easier to perform.
Optionally, the lower part of the mounting seat is provided with a guide part, the outer peripheral surface of the guide part is a cylindrical surface, and the outer diameter of the guide part is smaller than or equal to the small diameter of the internal thread.
By adopting the technical scheme, in the process of connecting the mounting seat and the mounting cylinder by the threads, the safety valve is heavier, and the threads are relatively larger in size, so that the process of spirally meshing the mounting seat and the threads of the mounting cylinder is inconvenient; through setting up the guide part, when threaded connection mount pad and installation section of thick bamboo, can make the guide part insert the upper end of installation section of thick bamboo earlier to force the central line of mount pad and the central line of installation section of thick bamboo to align as far as possible, rotate the relief valve afterwards and can make the external screw thread of mount pad more easily with the internal thread spiral meshing of installation section of thick bamboo.
Optionally, a sliding block is fixedly arranged at the upper end of the positioning pin, a sliding groove adapted to the sliding block is formed in the mounting seat, and the sliding block is connected with the sliding groove in a sliding manner along a direction close to or far away from the center of the mounting seat; the upper surface of the sliding block is fixedly provided with a guide rod, the mounting seat is provided with a plurality of first waist-shaped holes through which the guide rod penetrates, and the length direction of the first waist-shaped holes faces the radial direction of the mounting seat; the top of mount pad is equipped with annular positioning disk, the positioning disk is along the split type structure of radial surface subdivision, the positioning disk is equipped with a plurality of confessions the second waist shape hole that the guide bar wore to establish, the length direction in second waist shape hole has the contained angle with the length direction in the first waist shape hole that corresponds.
By adopting the technical scheme, the positioning pins are connected with the sliding grooves in a sliding manner through the sliding blocks, so that the distance between each positioning pin and the central position of the mounting seat can be adjusted, and the positioning pins can adapt to flange holes of air inlet flanges at different relative positions of safety valves with different sizes; the guide bar wears to establish with second waist shape hole and is connected, and second waist shape hole has the contained angle with the length direction in the first waist shape hole that corresponds, and when rotating the positioning disk, the lateral wall in second waist shape hole has the effect of spigot surface to the guide bar, and when the positioning disk rotated promptly, second waist shape hole can drive the central point that the guide bar is close to or keeps away from the mount pad and put to rotate the positioning disk and can realize the synchro-control to each guide bar, realize the synchro-control to each locating pin promptly, and is comparatively convenient.
Optionally, a first flange of an annular structure is fixedly arranged at the upper end of the support sleeve, a first rubber gasket of an annular structure is fixedly arranged on the upper surface of the first flange, and the first rubber gasket is used for being attached to an air inlet flange of the safety valve; a second flange with an annular structure is fixedly arranged at the lower end of the supporting sleeve, and a second rubber gasket with an annular structure is arranged between the lower surface of the second flange and the bottom wall of the mounting cylinder; the installation cylinder is communicated with the pipelines through the bottom wall, and the inner peripheral wall of the support sleeve surrounds the pipelines and the communication holes in the bottom wall of the installation cylinder.
By adopting the technical scheme, when the safety valve is installed through the installation assembly, the first rubber gasket blocks the gap between the air inlet flange and the support sleeve, and the second rubber gasket blocks the gap between the support sleeve and the bottom wall of the installation barrel, so that a closed gas channel is formed between the support sleeve and the safety valve, and the leakage of compressed gas can be reduced.
Optionally, a spring is fixedly arranged on the bottom wall of the mounting cylinder, a pressing plate of an annular structure is fixedly arranged on the inner wall of the support sleeve, the distance from the pressing plate to the bottom wall of the mounting cylinder is smaller than the length of the spring, and the lower surface of the pressing plate abuts against the upper end surface of the spring; the outer peripheral surface of the spring abuts against the inner peripheral surface of the support sleeve.
By adopting the technical scheme, in the process of spirally connecting the mounting seat and the mounting barrel, the spring jacks up the support sleeve, so that the upper end of the support sleeve is abutted against the mounting seat, the support sleeve supports the mounting seat and the safety valve, and the process of installing the mounting seat by workers is relatively labor-saving; the outer peripheral surface of the spring is abutted against the inner peripheral surface of the support sleeve, so that the spring has a guiding effect on the support sleeve, and the situation that the support sleeve deviates is favorably reduced.
Optionally, the safety valve further comprises a rubber air bag, wherein the rubber air bag is in a corrugated pipe shape, an opening is formed in one end of the rubber air bag, and the rubber air bag is used for being connected with the air outlet flange of the safety valve.
By adopting the technical scheme, the rubber air bag is arranged on the air outlet flange of the safety valve, so that the air outlet end of the safety valve is sealed by the rubber air bag; when the safety valve leaks in the checking process, the rubber air bag is inflated and expanded, the visual effect is obvious, and the judgment of workers is facilitated; the rubber air bag is in a corrugated pipe shape, the shape is flat in a contraction state, and when the air outlet end of the safety valve leaks air, the axial size of the rubber air bag changes obviously.
Optionally, one end of the rubber air bag, which is far away from the opening, is provided with a rubber tube, the rubber tube is communicated with the inner side and the outer side of the rubber air bag, and the rubber tube is provided with a plug.
Through adopting above-mentioned technical scheme, make quick aerate bloated in the rubber air bag when relief valve gas leakage speed is very fast, make the interior air pressure of rubber air bag continuously rise to when dashing the chock plug open, the air in the rubber air bag is outwards discharged through the rubber tube, makes the interior pressure release of rubber gas, reduces the condition that the rubber air belt bursts.
Optionally, a separation blade is arranged at one end, far away from the opening, of the rubber air bag, the separation blade is perpendicular to the rubber tube, the diameter of the separation blade is smaller than or equal to the inner diameter of the rubber air bag, a push rod is fixedly arranged on one side, close to the rubber tube, of the separation blade, the push rod is inserted into the rubber tube, and one end, far away from the separation blade, of the push rod abuts against the plug head.
Through adopting above-mentioned technical scheme, when the end of giving vent to anger of relief valve blows compressed gas in to the rubber air pocket, form the effect of similar piston in the rubber air pocket, make the separation blade receive great thrust to the push rod that makes and be fixed in the separation blade produces great thrust to the chock plug, is favorable to making the push rod release the rubber tube with the chock plug sooner, makes the compressed gas in the rubber air pocket discharge sooner.
Optionally, the air inlet end of the pressure gauge is connected with a spherical connecting assembly, and the spherical connecting assembly comprises two ball joints, a ball connecting piece and two cap joints; the ball joint comprises a spherical part and a tubular part, the size of the tubular part is smaller than the diameter of the spherical part, the tubular part of one ball joint is connected with a pipeline, and the tubular part of the other ball joint is connected with the pressure gauge; two opposite sides of the ball connecting piece are provided with first concave spherical surfaces matched with the spherical part, and the two first concave spherical surfaces are communicated with each other; the cap head is connected with the tubular part in a penetrating mode, a second inner spherical surface matched with the spherical part is arranged on the cap head, and the cap head is in threaded connection with the ball connecting piece.
By adopting the technical scheme, the pressure gauge is connected with the pipeline through the two ball joints, the ball connecting piece and the cap head, after the pressure gauge is used, the cap head and the ball connecting piece can be relatively unscrewed, and the pressure gauge is rotated downwards to be close to the surface of the workbench, so that the collision of the pressure gauge in the process of carrying equipment is reduced, the pressure gauge does not need to be completely detached from the workbench, and the pressure gauge is convenient to use again; the ball connection structure is limited in rotation angle usually, and the ball joints are set to be two, so that the rotation angle of the pressure gauge relative to the workbench can be increased, and the pressure gauge is enabled to be close to the workbench as far as possible.
A verification method of portable safety valve verification equipment comprises the following technical scheme:
step S1, connecting the air source pipe with a console;
step S2, assembling the left half ring and the right half ring above an air inlet flange of the safety valve to form a mounting seat, connecting the mounting seat with the air inlet flange of the safety valve, and enabling a positioning pin to penetrate through a flange hole of the air inlet flange of the safety valve when the mounting seat is connected with the safety valve;
step S3, connecting the mounting seat with the mounting cylinder by screw thread until the lower surface of the air inlet flange of the safety valve is tightly pressed against the upper end surface of the support sleeve, so that the support sleeve and the mounting seat form a clamping effect on the air inlet flange of the safety valve, and the safety valve is fixed;
step S4, opening an air source switch;
and step S5, adjusting the pressure increasing valve to observe the pressure value change of the pressure gauge, and verifying the safety valve according to the verification rule.
Through adopting above-mentioned technical scheme, among the relief valve verification process, install in the workstation through the installation component, installation component simple structure, weight are less, and it is comparatively convenient laborsaving to install.
In summary, the present application includes at least one of the following beneficial technical effects:
1. compared with a pneumatic clamping device and a hydraulic clamping device, the mounting assembly for mounting the safety valve is simpler in structure, so that the overall weight of the equipment is greatly reduced, and the carrying and carrying work of the safety valve calibration equipment is easier to perform;
2. the rubber air bag is arranged on the air outlet flange of the safety valve, when the safety valve leaks in the checking process, the rubber air bag is inflated and expanded, the visual effect is obvious, and the judgment of workers is facilitated;
3. the manometer passes through sphere coupling assembling and pipe connection, uses when the manometer and accomplishes the back, can loosen cap head and the relative soon of ball connecting piece to make the manometer be close to the workstation surface with the manometer rotation down, thereby reduce the condition that the collision appears in equipment handling process in the manometer, and the manometer need not to demolish completely from the workstation, and is comparatively convenient when reuse manometer.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a sectional view of the present embodiment showing the positional relationship between the safety valve and the mounting assembly;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an exploded view of the present embodiment showing the positional relationship between the mounting seat and the guiding plate;
FIG. 5 is an exploded view of the present embodiment for showing the fitting relationship between the positioning groove and the positioning protrusion;
fig. 6 is a sectional view of the structure for embodying the spherical connecting assembly of the present embodiment.
Description of reference numerals: 1. a work table; 11. a support; 12. a platen; 121. mounting holes; 122. avoiding holes; 2. a console; 21. a boost valve; 22. a pressure relief valve; 23. an air source pressure gauge; 3. mounting the component; 31. mounting the cylinder; 311. an internal thread; 32. a mounting seat; 321. an external thread; 322. a guide portion; 323. a left half ring; 3231. positioning the projection; 324. a right half ring; 3241. a positioning groove; 325. a stepped groove; 326. a chute; 327. a first waist-shaped hole; 33. positioning pins; 331. a slider; 332. a guide bar; 34. a guide plate; 341. a second waist-shaped hole; 35. a support sleeve; 351. a first flange; 352. a first rubber gasket; 353. a second flange; 354. a second rubber gasket; 355. pressing a plate; 36. a spring; 4. a rubber air bag; 41. a cylindrical section; 42. a rubber tube; 43. a plug head; 45. hooping; 46. a baffle plate; 461. a push rod; 6. a pressure gauge; 7. a spherical surface connecting assembly; 71. a ball joint; 711. a spherical portion; 712. a tubular portion; 72. a ball connector; 721. a first concave spherical surface; 73. a cap head; 731. a second inner spherical surface; 8. a safety valve; 81. an air outlet flange; 82. an air inlet flange; 9. a pipeline.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses portable safety valve checking equipment and a checking method. Referring to fig. 1, the portable safety valve verification apparatus includes a work table 1, a console 2, a pressure gauge 6, a mounting assembly 3, and a rubber air bag 4; the control console 2 is used for connecting an air source pipe and controlling air source input, the safety valve 8 is installed on the workbench 1 through the installation component 3, and the control console 2 and the safety valve 8 are communicated with the installation component 3 through a pipeline 9; the pressure gauge 6 is used for judging the check pressure of the safety valve 8, and the pressure gauge 6 is communicated with the air inlet end of the safety valve 8 through a pipeline 9 and the mounting assembly 3; the rubber air bag 4 is detachably connected with an air outlet flange 81 of the safety valve 8.
When the safety valve 8 is verified, the gas source is connected into the control console 2, the control console 2 controls the gas to be input into or output from the safety valve 8 so as to verify the safety valve 8, and when the gas leaks from the safety valve 8, the rubber air bag 4 bulges.
Referring to fig. 1, the workbench 1 includes a support 11 and a platen 12, the console 2 is fixedly installed on one side of the support 11, the console 2 is provided with a gas source pressure gauge 623, a pressure increasing valve 21 and a pressure reducing valve 22, the gas source pressure gauge 623 is used for judging whether the pressure of a gas source meets the requirement of verification pressure, the pressure increasing valve 21 is used for controlling the rising and falling of the gas pressure input into the safety valve 8, and the pressure reducing valve 22 is used for discharging the gas stored in the safety valve 8.
Referring to fig. 3, the mounting assembly 3 includes a mounting cylinder 31, a mounting seat 32 and a support sleeve 35, the mounting cylinder 31 has an upward opening, the mounting cylinder 31 is mounted below the bedplate 12, and the plate of the workbench 1 is provided with a mounting hole 121 for exposing the mounting cylinder 31; the installation cylinder 31 is fixedly installed on the workbench 1, and the pressure gauge 6 is connected with the bottom wall of the installation cylinder 31 through a pipeline 9.
Referring to fig. 4 and 5, the mounting seat 32 is of an annular structure, a stepped groove 325 is formed in the lower surface of the mounting seat 32, the stepped groove 325 is used for placing the air inlet flange 82 of the safety valve 8, the mounting seat 32 is of a split structure, the mounting seat 32 includes a left half ring 323 and a right half ring 324, a positioning protrusion 3231 is arranged on one side of the left half ring 323 close to the right half ring 324, and a positioning groove 3241 matched with the positioning protrusion 3231 is formed in the right half ring 324; the left half ring 323 and the right half ring 324 have magnetism, the left half ring 323 and the right half ring 324 are detachably connected through magnetic attraction, the left half ring 323 and the right half ring 324 form an installation seat 32, and the installation seat 32 can be attracted with the air inlet flange 82 of the steel or iron safety valve 8.
Referring to fig. 3 and 4, a plurality of positioning pins 33 are arranged at the bottom of the stepped groove 325, the length of each positioning pin 33 is smaller than or equal to the thickness of the air inlet flange 82 of the safety valve 8, and the positioning pins 33 are used for being connected with the flange holes of the air inlet flange 82 in a penetrating manner; the number of the positioning pins 33 is set according to the number of the flange holes of the air inlet flange 82; the number of flange holes of the air inlet flange 82 of different safety valves 8 is different, so that the mounting seat 32 can be set to be of multiple specifications, and the mounting seats 32 of different specifications have different numbers of positioning pins 33; the pins 33 are equiangularly arranged about the valve seat.
Referring to fig. 3 and 4, a sliding block 331 is fixedly arranged at the upper end of the positioning pin 33, a sliding groove 326 matched with the sliding block 331 is formed in the groove bottom of the stepped groove 325, when the sliding block 331 is located in the sliding groove 326, the lower surface of the sliding block 331 is flush with the groove bottom of the stepped groove 325, the sliding block 331 is made of a ferromagnetic material, and the sliding block 331 and the mounting base 32 are attracted through magnetic attraction; the sliding block 331 is connected with the sliding groove 326 in a sliding manner along a direction close to or far away from the center of the mounting seat 32; the upper surface of the sliding block 331 is fixedly provided with a guide rod 332, the mounting base 32 is provided with a plurality of first kidney-shaped holes 327 through which the guide rod 332 penetrates, and the length direction of the first kidney-shaped holes 327 faces the radial direction of the mounting base 32; an annular guide disc 34 is arranged above the mounting seat 32, the guide disc 34 is of a split structure split along a radial surface, is made of ferromagnetic materials and is detachably connected with the mounting seat 32 through magnetic attraction, the guide disc 34 is provided with a plurality of second kidney-shaped holes 341 for the guide rods 332 to penetrate through, and an included angle is formed between the length direction of the second kidney-shaped holes 341 and the length direction of the corresponding first kidney-shaped holes 327.
When the mounting seats 32 are connected with the air inlet flange 82 of the safety valve 8, the mounting seats 32 with corresponding specifications are selected according to the number of the flange holes of the air inlet flange 82, then the guide disc 34 is rotated, each positioning pin 33 synchronously slides to a position corresponding to the position of the flange hole of the air inlet flange 82 under the guiding action of the second kidney-shaped hole 341 of the guide disc 34, and then the positioning pins 33 penetrate through the flange holes of the air inlet flange 82 to complete positioning.
Referring to fig. 3 and 4, the outer peripheral wall of the mounting seat 32 is provided with an external thread 321, the inner peripheral wall of the mounting tube 31 is provided with an internal thread 311 matched with the external thread 321, the lower part of the mounting seat 32 is provided with a guide part 322, the outer peripheral surface of the guide part 322 is a cylindrical surface, and the size of the guide part 322 is equal to the small diameter of the internal thread 311; the mounting seat 32 is in threaded connection with the mounting cylinder 31, and when the mounting seat 32 is connected with the mounting cylinder 31, the guide portion 322 of the mounting seat 32 is inserted into the upper end of the mounting cylinder 31 to form a positioning effect, and then the safety valve 8 is rotated to drive the mounting seat 32 to rotate, so that the mounting seat 32 is easier to be in threaded engagement with a valve to be mounted.
Referring to fig. 3, a support sleeve 35 is arranged in the mounting cylinder 31, the support sleeve 35 is used for supporting the lower surface of the air inlet flange 82 of the safety valve 8, and when the mounting seat 32 is screwed with the mounting cylinder 31, the mounting seat 32 and the support sleeve form a clamping effect on the air inlet flange 82 of the safety valve 8, so that the safety valve 8 is positioned; the upper end of the support sleeve 35 is fixedly provided with a first flange 351 with an annular structure, the upper surface of the first flange 351 is fixedly bonded with a first rubber gasket 352 with an annular structure, and the first rubber gasket 352 is used for being attached to the air inlet flange 82 of the safety valve 8; a second flange 353 with an annular structure is fixedly arranged at the lower end of the support sleeve 35, a second rubber gasket 354 is fixedly bonded to the lower surface of the second flange 353, and the second rubber gasket 354 is used for being attached to the bottom wall of the installation cylinder 31; the inner peripheral wall of the support sleeve 35 surrounds the port of each duct 9 connected to the bottom wall of the mounting cylinder 31.
When the safety valve 8 is mounted with the mounting assembly 3, the gap between the air inlet flange 82 of the safety valve 8 and the first flange 351 is blocked by the first rubber gasket 352, and the gap between the second flange 353 and the bottom wall of the mounting cylinder 31 is blocked by the second rubber gasket 354, so that a closed channel is formed between the safety valve 8 and the support sleeve 35.
Referring to fig. 3, a spring 36 is fixedly arranged on the bottom wall of the mounting cylinder 31, a pressing plate 355 of an annular structure is fixedly arranged on the inner wall of the supporting sleeve 35, the pressing plate 355 is perpendicular to the axis of the supporting sleeve 35, the distance from the pressing plate 355 to the bottom wall of the mounting cylinder 31 is smaller than the length of the spring 36, and the lower surface of the pressing plate 355 abuts against the upper end surface of the spring 36; the outer peripheral surface of the spring 36 abuts against the inner peripheral surface of the support sleeve 35; the spring 36 jacks up the support sleeve 35, so that the support sleeve 35 supports the air inlet flange 82 of the safety valve 8 in advance in the installation process of the safety valve 8, and the installation process of the safety valve 8 is labor-saving.
Referring to fig. 1 and 2, the rubber air bag 4 is in a bellows shape, one end of the rubber air bag 4 is provided with an opening, the opening end of the rubber air bag 4 is sleeved with an air outlet flange 81 of the safety valve 8, the opening end of the rubber air bag 4 is detachably provided with an anchor ear 45, and the rubber air bag 4 is detachably connected with the air outlet flange 81 of the safety valve 8 through the anchor ear 45; a rubber tube 42 is arranged at one end of the rubber air bag 4 far away from the opening, the axis of the rubber tube 42 is superposed with the axis of the rubber air bag 4, the rubber tube 42 is communicated with the inner side and the outer side of the rubber air bag 4, and a plug 43 is arranged on the rubber tube 42; the end of the rubber air bag 4 far away from the opening is provided with a cylindrical section 41, the end of the rubber air bag 4 far away from the opening is provided with a baffle 46, the baffle 46 is perpendicular to the rubber tube 42, the diameter of the baffle 46 is equal to the inner diameter of the rubber air bag 4, one side of the baffle 46 near the rubber tube 42 is fixedly provided with a push rod 461, the push rod 461 is inserted into the rubber tube 42, the diameter of the push rod 461 is smaller than the inner diameter of the rubber tube 42, and the end of the push rod 461 far away from the baffle 46 is.
When the safety valve 8 is checked, the compressed gas leaked by the safety valve 8 leaks into the rubber air bag 4, so that the air bag is rapidly inflated, and the judgment of a worker is facilitated; the compressed gas leaked from the safety valve 8 pushes the baffle 46, so that the baffle 46 pushes the plug 43 open, the compressed gas in the rubber air bag 4 is discharged from the rubber tube 42, and the situation of expansion and rupture of the rubber air bag 4 is reduced.
Referring to fig. 1 and 6, a spherical connecting assembly 7 is connected between an air inlet end of the pressure gauge 6 and the pipeline 9, and the spherical connecting assembly 7 comprises two ball joints 71, a ball connecting member 72 and two cap joints 73; the ball joints 71 comprise a spherical part 711 and a tubular part 712, the size of the tubular part 712 being smaller than the diameter of the spherical part 711, wherein the tubular part 712 of one of the ball joints 71 is connected with a vent pipe, and the tubular part 712 of the other ball joint 71 is connected with the air inlet end of the pressure gauge 6; two opposite sides of the ball connecting member 72 are respectively provided with two first concave spherical surfaces 721 matched with the spherical part 711 and communicated with each other; the outer peripheral surface of the cap head 73 is a hexagonal prism surface, the cap head 73 is connected with the tubular part 712 of the ball joint 71 in a penetrating way, the cap head 73 is provided with a second inner spherical surface 731 matched with the spherical part 711, and the cap head 73 is in threaded connection with the ball connecting piece 72; the middle of the ball connector 72 is a hexagonal prism surface.
When the spherical connecting component 7 is connected, the two cap heads 73 are respectively in threaded connection with two ends of the ball connecting component 72, so that the two spherical parts 711 are forced to be simultaneously attached to the first concave spherical surface 721 and the second concave spherical surface respectively, and a sealing effect is formed; in the process of carrying the safety valve 8 calibration equipment, the cap head 73 can be loosened to rotate the pressure gauge 6, so that the pressure gauge 6 is close to the workbench 1, and the spherical connecting component 7 has two groups of spherical connecting structures, so that the rotating angle of the pressure gauge 6 is improved.
Referring to fig. 1, the spherical connecting assembly 7 is located below the platen 12, an avoiding hole 122 for avoiding the safety valve 8 is formed in the platen 12 of the workbench 1, when the pressure gauges 6 rotate in opposite directions, the pressure gauge 6 is located inside the avoiding hole 122, and the highest point of the pressure gauge 6 is lower than the upper surface of the platen 12, so that the pressure gauge 6 is protected by the platen 12.
The implementation principle of the portable safety valve calibration device and the calibration method provided by the embodiment of the application is as follows: when the safety valve 8 is installed on the portable safety valve 8 calibration device, the left half ring 323 and the right half ring 324 are spliced into the installation seat 32, the positioning pin 33 on the installation seat 32 and the air inlet flange 82 penetrating through the safety valve 8 enable the safety valve 8 and the installation seat 32 to be positioned by the positioning pin 33, then the safety valve 8 is rotated to drive the installation seat 32 to be screwed into the installation cylinder 31 until the air inlet flange 82 of the safety valve 8 abuts against the support sleeve 35, and the installation seat 32 and the support sleeve 35 form a clamping effect on the air inlet flange 82 of the safety valve 8; the mounting component 3 for mounting the safety valve 8 has a simple structure, so that the overall weight of the equipment is greatly reduced, and the safety valve 8 calibration equipment is convenient to carry and transport; meanwhile, the pressure gauge 6 can be hidden below the bedplate 12 of the workbench 1, the collision condition of the pressure gauge 6 in the carrying process can be reduced, the carrying is convenient, the pressure gauge does not need to be completely dismounted, and the operation is simple and convenient.
The embodiment also discloses a verification method of the portable safety valve verification device, which comprises the following steps:
step S1, connecting the air source pipe with the console 2;
step S2, assembling the left half ring 323 and the right half ring 324 into the installation seat 32 above the air inlet flange 82 of the safety valve 8, then connecting the installation seat 32 with the air inlet flange 82 of the safety valve 8, wherein when the installation seat 32 is connected with the safety valve 8, the positioning pin 33 penetrates through a flange hole of the air inlet flange 82 of the safety valve 8, and the bottom of the stepped groove 325 is attached to the upper surface of the air inlet flange 82 of the safety valve 8;
step S3, screwing the mounting seat 32 and the mounting cylinder 31 until the lower surface of the air inlet flange 82 of the safety valve 8 abuts against the upper end surface of the support sleeve 35, so that the support sleeve 35 and the mounting seat 32 clamp the air inlet flange 82 of the safety valve 8, and the safety valve 8 is fixed;
step S4, opening an air source switch, and observing whether the air source pressure meets the requirement of checking pressure according to an air source pressure gauge 623;
step S5, the pressure-increasing valve 21 is adjusted to observe the pressure value change of the pressure gauge 6, the safety valve 8 is verified according to the verification rule, and the opening and closing of the safety valve 8 are judged according to the change of the rubber air bag 4 in the process of verifying the safety valve 8;
and step S6, after the verification is finished, closing the pressure increasing valve 21, opening the pressure reducing valve 22, closing the air source switch and taking down the safety valve 8.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a portable relief valve check-up equipment which characterized in that: comprises a workbench (1), a control console (2), a pressure gauge (6) and a mounting component (3); the control console (2) is used for connecting and controlling an air source; the mounting assembly (3) comprises a mounting cylinder (31), a mounting seat (32) and a support sleeve (35), the mounting cylinder (31) is provided with an upward opening, and the mounting cylinder (31) is fixedly mounted on the workbench (1); the control console (2) is connected with the installation cylinder (31) through a pipeline (9), and the pressure gauge (6) is connected with the installation cylinder (31) through the pipeline (9); the mounting base (32) is integrally of an annular structure, a plurality of positioning pins (33) are arranged on the mounting base (32), the positioning pins (33) are used for being connected with flange holes of the air inlet flange (82) in a penetrating mode, external threads (321) are arranged on the outer peripheral wall of the mounting base (32), and internal threads (311) matched with the external threads (321) are arranged on the inner peripheral wall of the mounting cylinder (31); a support sleeve (35) is arranged in the mounting cylinder (31), and the support sleeve (35) is used for supporting the lower surface of an air inlet flange (82) of the safety valve (8); the mounting seat (32) is of a split structure, the mounting seat (32) comprises a left half ring (323) and a right half ring (324), a positioning protrusion (3231) is arranged on one side, close to the right half ring (324), of the left half ring (323), and a positioning groove (3241) matched with the positioning protrusion (3231) is arranged on the right half ring (324); the left half ring (323) and the right half ring (324) are magnetic, and the left half ring (323) and the right half ring (324) are detachably connected through magnetic attraction.
2. The portable safety valve verification device of claim 1, wherein: the lower part of the mounting seat (32) is provided with a guide part (322), the outer peripheral surface of the guide part (322) is a cylindrical surface, and the outer diameter of the guide part (322) is smaller than or equal to the small-diameter size of the internal thread (311).
3. The portable safety valve verification device of claim 1, wherein: a sliding block (331) is fixedly arranged at the upper end of the positioning pin (33), a sliding groove (326) matched with the sliding block (331) is formed in the mounting seat (32), and the sliding block (331) is connected with the sliding groove (326) in a sliding mode along the direction close to or far away from the center of the mounting seat (32); a guide rod (332) is fixedly arranged on the upper surface of the sliding block (331), the installation base (32) is provided with a plurality of first waist-shaped holes (327) for the guide rod (332) to penetrate through, and the length direction of each first waist-shaped hole (327) faces the radial direction of the installation base (32); the top of mount pad (32) is equipped with annular deflector disc (34), deflector disc (34) are along the split type structure of radial surface subdivision, deflector disc (34) are equipped with a plurality of confessions second waist shape hole (341) that guide bar (332) wore to establish, the length direction in second waist shape hole (341) and the length direction in the first waist shape hole (327) that corresponds have the contained angle.
4. The portable safety valve verification device of claim 1, wherein: a first flange (351) with an annular structure is fixedly arranged at the upper end of the support sleeve (35), a first rubber gasket (352) with an annular structure is fixedly arranged on the upper surface of the first flange (351), and the first rubber gasket (352) is used for being attached to an air inlet flange (82) of a safety valve (8); a second flange (353) with an annular structure is fixedly arranged at the lower end of the support sleeve (35), and a second rubber gasket (354) with the annular structure is arranged between the lower surface of the second flange (353) and the bottom wall of the installation cylinder (31); the mounting cylinder (31) is communicated with the pipelines (9) through the bottom wall, and the inner peripheral wall of the support sleeve (35) surrounds the communication holes of the pipelines (9) and the bottom wall of the mounting cylinder (31).
5. The portable safety valve verification device of claim 1, wherein: a spring (36) is fixedly arranged on the bottom wall of the mounting cylinder (31), a pressure plate (355) of an annular structure is fixedly arranged on the inner wall of the support sleeve (35), the distance from the pressure plate (355) to the bottom wall of the mounting cylinder (31) is smaller than the length of the spring (36), and the lower surface of the pressure plate (355) abuts against the upper end face of the spring (36); the outer peripheral surface of the spring (36) abuts against the inner peripheral surface of the support sleeve (35).
6. The portable safety valve verification device of claim 1, wherein: the safety valve is characterized by further comprising a rubber air bag (4), wherein the rubber air bag (4) is in a corrugated pipe shape, an opening is formed in one end of the rubber air bag (4), and the rubber air bag (4) is used for being connected with an air outlet flange (81) of the safety valve (8).
7. The portable safety valve verification device of claim 6, wherein: the rubber air bag (4) is far away from the one end of open-ended and is equipped with rubber tube (42), rubber tube (42) intercommunication the inside and outside of rubber air bag (4), rubber tube (42) are equipped with chock plug (43).
8. The portable safety valve verification device of claim 7, wherein: keep away from open-ended one end in rubber air bag (4) and be equipped with separation blade (46), separation blade (46) with rubber tube (42) are perpendicular, the diameter of separation blade (46) is less than or equal to the internal diameter of rubber air bag (4), separation blade (46) are close to one side of rubber tube (42) has set firmly push rod (461), push rod (461) insert rubber tube (42), the one end butt that separation blade (46) were kept away from in push rod (461) stopper head (43).
9. The portable safety valve verification device of claim 1, wherein: the air inlet end of the pressure gauge (6) is connected with a spherical connecting assembly (7), and the spherical connecting assembly (7) comprises two ball joints (71), a ball connecting piece (72) and two cap heads (73); said ball joint (71) comprising a spherical portion (711) and a tubular portion (712), said tubular portion (712) having dimensions smaller than the diameter of said spherical portion (711), wherein the tubular portion (712) of one of said ball joints (71) is connected to a duct (9) and the tubular portion (712) of the other of said ball joints (71) is connected to said pressure gauge (6); two opposite sides of the ball connecting piece (72) are provided with first concave spherical surfaces (721) matched with the spherical part (711), and the two first concave spherical surfaces (721) are communicated with each other; the cap head (73) is connected with the tubular part (712) in a penetrating mode, a second inner spherical surface (731) matched with the spherical part (711) is arranged on the cap head (73), and the cap head (73) is in threaded connection with the ball connecting piece (72).
10. A method of using a portable safety valve verification device according to any of claims 1 to 9, wherein:
step S1, connecting the air source pipe with a console;
step S2, assembling the left half ring and the right half ring above an air inlet flange of the safety valve to form a mounting seat, connecting the mounting seat with the air inlet flange of the safety valve, and enabling a positioning pin to penetrate through a flange hole of the air inlet flange of the safety valve when the mounting seat is connected with the safety valve;
step S3, connecting the mounting seat with the mounting cylinder by screw thread until the lower surface of the air inlet flange of the safety valve is tightly pressed against the upper end surface of the support sleeve, so that the support sleeve and the mounting seat form a clamping effect on the air inlet flange of the safety valve, and the safety valve is fixed;
step S4, opening an air source switch;
and step S5, adjusting the pressure increasing valve to observe the pressure value change of the pressure gauge, and verifying the safety valve according to the verification rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229967.7A CN113008546B (en) | 2021-03-02 | 2021-03-02 | Portable safety valve calibration equipment and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229967.7A CN113008546B (en) | 2021-03-02 | 2021-03-02 | Portable safety valve calibration equipment and calibration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113008546A true CN113008546A (en) | 2021-06-22 |
| CN113008546B CN113008546B (en) | 2022-05-17 |
Family
ID=76402322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110229967.7A Active CN113008546B (en) | 2021-03-02 | 2021-03-02 | Portable safety valve calibration equipment and calibration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113008546B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587836A (en) * | 1984-10-02 | 1986-05-13 | Crosby Valve & Engineering Company Limited | Test stand for a valve |
| US20080092632A1 (en) * | 2006-10-20 | 2008-04-24 | Heinfried Hoffmann | Method and system for function testing a valve |
| CN201285349Y (en) * | 2008-11-07 | 2009-08-05 | 南京市锅炉压力容器检验研究院 | Verification apparatus for super-high safety valve |
| CN202693296U (en) * | 2012-07-25 | 2013-01-23 | 聂世全 | Novel portable oil tank breathing valve calibrator |
| CN103278314A (en) * | 2013-04-28 | 2013-09-04 | 江南大学 | Safety valve check bench |
| CN205426483U (en) * | 2015-06-01 | 2016-08-03 | 成都威能科技有限公司 | Relief valve off -line check -up clamping device |
| JP2019095383A (en) * | 2017-11-27 | 2019-06-20 | 株式会社豊田自動織機 | Safety valve inspection device and method |
| CN110441050A (en) * | 2019-08-20 | 2019-11-12 | 中国石油天然气股份有限公司西南油气田分公司川东北气矿 | A kind of mobile regulating platform of Portable safety valve |
-
2021
- 2021-03-02 CN CN202110229967.7A patent/CN113008546B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587836A (en) * | 1984-10-02 | 1986-05-13 | Crosby Valve & Engineering Company Limited | Test stand for a valve |
| US20080092632A1 (en) * | 2006-10-20 | 2008-04-24 | Heinfried Hoffmann | Method and system for function testing a valve |
| CN201285349Y (en) * | 2008-11-07 | 2009-08-05 | 南京市锅炉压力容器检验研究院 | Verification apparatus for super-high safety valve |
| CN202693296U (en) * | 2012-07-25 | 2013-01-23 | 聂世全 | Novel portable oil tank breathing valve calibrator |
| CN103278314A (en) * | 2013-04-28 | 2013-09-04 | 江南大学 | Safety valve check bench |
| CN205426483U (en) * | 2015-06-01 | 2016-08-03 | 成都威能科技有限公司 | Relief valve off -line check -up clamping device |
| JP2019095383A (en) * | 2017-11-27 | 2019-06-20 | 株式会社豊田自動織機 | Safety valve inspection device and method |
| CN110441050A (en) * | 2019-08-20 | 2019-11-12 | 中国石油天然气股份有限公司西南油气田分公司川东北气矿 | A kind of mobile regulating platform of Portable safety valve |
Non-Patent Citations (1)
| Title |
|---|
| 沈华龙: "化工安全阀的检验与维修", 《工艺与设备》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113008546B (en) | 2022-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7841229B2 (en) | Leak detecting apparatus | |
| US7866347B2 (en) | Isolation tool | |
| US4458721A (en) | Pipeline flow restrictor | |
| JPS63246629A (en) | Airtightness test apparatus for joint between hollow body | |
| CN111964841A (en) | Welding tee bend pipe fitting gas tightness detection device | |
| US7591484B2 (en) | Quick-connect fitting | |
| CN113008546B (en) | Portable safety valve calibration equipment and calibration method | |
| CN110268154A (en) | Injector sleeve assembly and method for on-site procedure for repairing | |
| AU551786B2 (en) | Test head | |
| CN113374907A (en) | Adjustable air pressure type pressure relief device and water hammer suppression method based on same | |
| CN114370980A (en) | Clamp airtightness detection device and machine tool with same | |
| CN210442063U (en) | Valve gas tightness detection device | |
| NO303748B1 (en) | Device for testing the gas density of readable connections between hollow bodies | |
| CN108871707B (en) | Leakage detection device of natural gas ball valve | |
| US20070176415A1 (en) | Quick-connect fitting | |
| CN218956032U (en) | Ultrahigh pressure testing device suitable for thin-wall products | |
| CN111120878A (en) | Pipeline air tightness detection device | |
| CN215492238U (en) | Quick water detection device for stop valve | |
| CA2461402A1 (en) | Wellhead and control stack pressure test plug tool | |
| CN117128386A (en) | Metal pipeline repairing device for ocean engineering | |
| CN210335676U (en) | Clamping device is used in pneumatic V type ball valve production of lining fluorine | |
| CN219391244U (en) | Data testing device for precision parts | |
| CN109253851A (en) | A kind of valve air pressure test device | |
| CN217384614U (en) | Pipeline air tightness detection device | |
| CN220649931U (en) | Casing rupture disc pressure testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |