CN210347131U

CN210347131U - Clamping mechanism of safety valve calibration equipment

Info

Publication number: CN210347131U
Application number: CN201921220509.1U
Authority: CN
Inventors: 陆司政; 杨洪哲; 梁达斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-17
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a relief valve calibration equipment clamping mechanism, including the calibration bench, first anchor clamps are installed to top one side of calibration bench, and first anchor clamps include first fixed plate and first spout, and the bottom and the first spout block of first fixed plate are connected, and first spout is established in top one side of calibration bench. The relief valve that will wait to detect is placed on the bridge plate, act on the telescopic link through the cylinder, the height of adjustable bridge plate, then press from both sides tight fixedly to the relief valve through first fixed plate and second fixed plate, first fixed plate and second fixed plate can adjust different positions in the spout, with the not unidimensional relief valve of adaptation, simultaneously first auxiliary fixed plate and second auxiliary fixed plate can assist fixedly to some dysmorphism relief valves, this design is not only convenient for to the fixed of relief valve, can also adapt to the relief valve of various shapes and size simultaneously, application scope is wide, moreover, the steam generator is simple in structure, the fruit is convenient for popularize.

Description

Clamping mechanism of safety valve calibration equipment

Technical Field

The utility model belongs to the technical field of the relief valve check-up, specifically be a relief valve check-up equipment clamping mechanism.

Background

The safety valve is a valve for safety protection, and its opening and closing member is in normally closed state under the action of external force, and when the pressure of medium in the equipment or pipeline is raised and exceeds the defined value, it can be automatically opened, and the medium pressure in the pipeline or equipment can be prevented from exceeding the defined value by means of discharging medium to the exterior of system. Aiming at the problems that the volume ratio of the safety valve of a power plant is high and the pressure is high in a supercritical or above power plant, the safety valve is generally directly welded on a protected equipment pipeline, and the tripping specified value is influenced by the change of mechanical properties such as a spring due to the rise of temperature after the equipment is operated. After normal operation, the safety valve needs to be subjected to thermal state online verification to ensure the safety of equipment, and the safety valve is adjusted to an accurate take-off specified value so as to eliminate potential safety hazards; according to the relevant national regulations, safety valves need to be checked regularly to ensure their safe and reliable performance. During calibration, the safety valve needs to be fixed on calibration equipment, so that the clamping pin of the calibration equipment can be adjusted to advance and retreat so as to adapt to different calibers and flange thicknesses of safety valves of various models.

In the prior art, a clamping mechanism of a calibration device comprises a bracket, a stand column, an air cylinder and other main components. The vertical column is provided with an eccentric disc type clamping pin, a steel circle is padded under the eccentric disc, and the height of the position of the eccentric disc is adjusted by installing steel rings with different thicknesses or dismounting the steel rings. The steel ring clamping device has the disadvantages that the clamping pins are required to be repeatedly disassembled and assembled when the height of the clamping pins is adjusted, steel rings with different thicknesses are replaced, the operation steps are complicated, and the automation degree is not high.

Therefore, the utility model provides a relief valve check-up equipment clamping mechanism.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems of complex operation process and low automation degree of the existing safety valve checking tool, a clamping mechanism of safety valve checking equipment is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a safety valve checking equipment clamping mechanism comprises a checking platform, wherein a first clamp is installed on one side of the top end of the checking platform, the first clamp comprises a first fixing plate and a first sliding groove, the bottom end of the first fixing plate is connected with the first sliding groove in a clamping mode, the first sliding groove is formed in one side of the top end of the checking platform, a second clamp is installed on the other side of the top end of the checking platform, the second clamp comprises a second fixing plate and a second sliding groove, the bottom end of the second fixing plate is connected with the second sliding groove in a clamping mode, the clamping connection is formed in the other side of the top end of the checking platform, a safety valve placing plate is arranged in the middle of the top end of the checking platform, an air cylinder fixing frame is arranged at the bottom end of the safety valve placing plate and fixedly connected with the bottom end of the checking platform through bolts, and an air cylinder, the telescopic link is installed on the top of cylinder, the telescopic link with calibration bench through connection, the top fixed mounting of telescopic link has the bridge plate.

The bridge plate is characterized in that one end of the bridge plate is provided with a first movable groove, a first auxiliary fixing plate is installed in the first movable groove, a plurality of first bolt openings are formed in the first auxiliary fixing plate, the other end of the bridge plate is provided with a second movable groove, a second auxiliary fixing plate is installed in the second movable groove, and a plurality of second bolt openings are formed in the second auxiliary fixing plate.

The bottom four corners of the calibration table are fixedly provided with supporting legs through bolts, and the bottom ends of the supporting legs are provided with rubber anti-slip pads.

The top surface of the checking table is provided with a control switch, and the control switch is electrically connected with the air cylinder.

The first sliding groove is a splayed sliding groove with a top opening smaller than a bottom opening, the bottom end of the first fixing plate is also splayed, and the second clamp and the first clamp are identical in structure.

Bolts are mounted at two ends of one side of the bridge plate and are in active connection with the first bolt ports and the second bolt ports.

Compared with the prior art, the beneficial effects of the utility model are that:

the relief valve that will treat the detection is placed on the bridge plate, act on the telescopic link through the cylinder, the height of adjustable bridge plate, then press from both sides tight fixedly to the relief valve through first fixed plate and second fixed plate, first fixed plate and second fixed plate can adjust different positions in the spout, with the not unidimensional relief valve of adaptation, simultaneously first auxiliary fixed plate and second auxiliary fixed plate can assist fixedly to some dysmorphism relief valves, this design is not only convenient for to the fixed of relief valve, can also adapt to the relief valve of various shapes and size simultaneously, application scope is wide, moreover, the steam generator is simple in structure, and is convenient for popularize.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic plan view of the present invention;

fig. 3 is a schematic view of a partial structure of the present invention.

In figure 1, a calibration stand; 2. supporting legs; 201. a rubber non-slip mat; 3. a first clamp; 301. a first fixing plate; 302. a first chute; 4. a second clamp; 401. a second fixing plate; 402. a second chute; 5. a safety valve placing plate; 501. a cylinder fixing frame; 502. a cylinder; 503. a telescopic rod; 504. a bridge plate; 505. a first movable slot; 506. a first auxiliary fixing plate; 507. a first plug port; 508. a second movable slot; 509. a second auxiliary fixing plate; 510. a second plug port; 6. and controlling the switch.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiment one, referring to fig. 1-3, the utility model provides a technical scheme: a safety valve checking equipment clamping mechanism comprises a checking platform 1, a first clamp 3 is installed on one side of the top end of the checking platform 1, the first clamp 3 comprises a first fixing plate 301 and a first sliding groove 302, the bottom end of the first fixing plate 301 is connected with the first sliding groove 302 in a clamping mode, the first sliding groove 302 is arranged on one side of the top end of the checking platform 1, a second clamp 4 is installed on the other side of the top end of the checking platform 1, the second clamp 4 comprises a second fixing plate 401 and a second sliding groove 402, the bottom end of the second fixing plate 401 is connected with the second sliding groove 402 in a clamping mode, the second sliding groove 302 is arranged on the other side of the top end of the checking platform 1 in a clamping mode, a safety valve placing plate 5 is arranged in the middle of the top end of the checking platform 1, an air cylinder fixing frame 501 is arranged at the bottom end of the safety valve placing plate 5, the air cylinder fixing frame 501 is fixedly, the telescopic rod 503 is connected with the calibration stand 1 in a penetrating way, and the top end of the telescopic rod 503 is fixedly provided with a bridge plate 504; first fixed plate 301 and second fixed plate 401 can slide on first spout 302 and second spout 402 respectively, can adjust the interval between first fixed plate 301 and the second fixed plate 401 for it can be fixed the relief valve of unidimensional not, and cylinder 502 acts on telescopic link 503, makes the bridge 504 of being connected with it can reciprocate, makes the relief valve of placing on bridge 504 can contact with first fixed plate 301 and second fixed plate 401, and fix.

Wherein, the one end of bridge plate 504 is equipped with first movable groove 505, install first auxiliary fixing plate 506 in the first movable groove 505, be equipped with the first bolt mouth 507 of a plurality of on the first auxiliary fixing plate 506, the other end of bridge plate 504 is equipped with second movable groove 508, install second auxiliary fixing plate 509 in the second movable groove 508, be equipped with a plurality of second bolt mouth 510 on the second auxiliary fixing plate 509, first auxiliary fixing plate 506 and second auxiliary fixing plate 509 can assist fixedly to some dysmorphism relief valves, when need not use first auxiliary fixing plate 506 and second auxiliary fixing plate 509, can take in first auxiliary fixing plate 506 and second auxiliary fixing plate 509 in first movable groove 505 and second movable groove 508, can not influence the result of use of bridge plate 504.

Wherein, the bottom four corners of calibration stand 1 all has supporting leg 2 through bolt fixed mounting, and rubber slipmat 201 is installed to the bottom of supporting leg 2, and rubber slipmat 201 can prevent that the calibration stand from skidding, guarantees the stability of calibration stand.

Wherein, install control switch 6 on the top surface of check-up table 1, control switch 6 and cylinder 502 electric connection.

The first sliding groove 302 is a splayed sliding groove with a smaller opening at the top end than the opening at the bottom end, the bottom end of the first fixing plate 301 is also splayed, the second clamp 4 and the first clamp 3 have the same structure, and the splayed sliding groove and the splayed fixing plate can limit the position of the fixing plate so as not to be drawn out of the sliding groove.

Wherein, the two ends of one side of the bridge plate 504 are provided with pins which are actively connected with the first pin opening 507 and the second pin opening 510.

The working principle is as follows:

a safety valve calibration equipment clamping mechanism comprises a calibration table; the safety valve is first placed on the bridge plate 504, then the telescopic rod 503 is acted on by the cylinder 502, so that the bridge plate 504 connected with the bridge plate can move up and down, when the external arrangement of the bridge plate 504 is adjusted to a certain degree, the first fixing plate 301 and the second fixing plate 401 can respectively slide on the first sliding groove 302 and the second sliding groove 402, the distance between the first fixing plate 301 and the second fixing plate 401 can be adjusted, so that the first fixing plate 301 and the second fixing plate 401 can be connected with the safety valve and can clamp the safety valve, the first auxiliary fixing plate 506 and the second auxiliary fixing plate 509 can be used for auxiliary fixing of some specially-shaped safety valves, while when the first and second

auxiliary fixing plates

506 and 509 are not required to be used, the first auxiliary fixing plate 506 and the second auxiliary fixing plate 509 can be received in the first movable groove 505 and the second movable groove 508 without affecting the use effect of the bridge plate 504.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a relief valve check-up equipment clamping mechanism, includes check-up platform (1), its characterized in that: a first clamp (3) is installed on one side of the top end of the checking platform (1), the first clamp (3) comprises a first fixing plate (301) and a first sliding groove (302), the bottom end of the first fixing plate (301) is connected with the first sliding groove (302) in a clamping mode, the first sliding groove (302) is arranged on one side of the top end of the checking platform (1), a second clamp (4) is installed on the other side of the top end of the checking platform (1), the second clamp (4) comprises a second fixing plate (401) and a second sliding groove (402), the bottom end of the second fixing plate (401) is connected with the second sliding groove (402) in a clamping mode, the second clamp is connected with the other side of the top end of the checking platform (1) in a clamping mode, a safety valve placing plate (5) is arranged in the middle of the top end of the checking platform (1), and an air cylinder fixing frame (501) is arranged at the bottom end, the cylinder mount (501) pass through the bolt with the bottom fixed connection of check-up platform (1), fixed mounting has cylinder (502) in cylinder mount (501), telescopic link (503) are installed on the top of cylinder (502), telescopic link (503) with check-up platform (1) through connection, the top fixed mounting of telescopic link (503) has bridge plate (504).

2. The safety valve verification device clamping mechanism of claim 1, wherein: the one end of bridge plate (504) is equipped with first activity groove (505), install first auxiliary fixing plate (506) in first activity groove (505), be equipped with first bolt mouth of a plurality of (507) on first auxiliary fixing plate (506), the other end of bridge plate (504) is equipped with second activity groove (508), install second auxiliary fixing plate (509) in second activity groove (508), be equipped with a plurality of second bolt mouth (510) on second auxiliary fixing plate (509).

3. The safety valve verification device clamping mechanism of claim 1, wherein: the bottom four corners of the calibration stand (1) are respectively provided with a supporting leg (2) through a bolt, and the bottom ends of the supporting legs (2) are provided with rubber non-slip pads (201).

4. The safety valve verification device clamping mechanism of claim 1, wherein: the top surface of the calibration stand (1) is provided with a control switch (6), and the control switch (6) is electrically connected with the cylinder (502).

5. The safety valve verification device clamping mechanism of claim 1, wherein: the first sliding groove (302) is a splayed sliding groove with a top opening smaller than a bottom opening, the bottom end of the first fixing plate (301) is also splayed, and the second clamp (4) and the first clamp (3) are identical in structure.

6. The safety valve verification device clamping mechanism of claim 2, wherein: bolts are arranged at two ends of one side of the bridge plate (504), and the bolts are in active connection with the first bolt openings (507) and the second bolt openings (510).