CN211205669U

CN211205669U - Gate valve detection equipment

Info

Publication number: CN211205669U
Application number: CN202020198287.4U
Authority: CN
Inventors: 富文华; 丁邦建; 陈军
Original assignee: Neway Valve Suzhou Co Ltd
Current assignee: Neway Valve Suzhou Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-08-07
Anticipated expiration: 2030-02-21

Abstract

The utility model provides a gate valve detection device, set up the detection device who has the detection chamber on the workstation, the process valve rod slides and wears to establish in detecting the intracavity, the front end of process valve rod is fixed and is detected the flashboard, the workstation drives under the drive of first drive assembly and detects chamber and process valve rod and move towards the valve body that detects, make the detection chamber communicate with the lumen of detecting the valve body, and the junction seals the setting, process valve rod promotes to detect the flashboard butt on the seat circle sealing surface of detecting the valve body, through injecting into detection fluid into detecting the intracavity, in order to detect the leakproofness that detects between flashboard and the valve body that detects, can be timely when the leakproofness problem appears and treat detection flashboard or seat circle sealing surface and reprocess, when not having the leakproofness problem, can carry this group of flashboards and valve body together to next process and assemble, when avoiding appearing the leakproofness problem after the assembly, the valve body is disassembled for maintenance, the rate of finished products of valve body assembly is provided, and the repair cost is reduced.

Description

Gate valve detection equipment

Technical Field

The utility model belongs to the technical field of valve equipment, concretely relates to gate valve check out test set.

Background

The gate valve is also called as gate valve, and is a widely used valve. A gate valve is a valve in which a closing element (gate) is moved in a direction perpendicular to the axis of a passage, and is used on a pipe primarily as a shut-off medium, i.e., fully open or fully closed. The closing principle is that the height of the sealing surface of the flashboard and the sealing surface of the seat ring of the valve seat are smooth, smooth and consistent, and the flashboard and the seat ring are mutually attached, so that the medium can be prevented from flowing through. The gate valve is generally provided with two sealing pairs, which increases some difficulties in processing, grinding and maintenance, and the gate valve is sealed by contacting a valve seat and a gate plate, and metal materials are usually deposited on a sealing surface to increase the wear resistance.

In the prior art, the gate valve is usually subjected to a leak test after the gate plate is mounted in the valve body. At the moment, when the problems of poor welding between the valve body and the valve seat, casting defects of the flashboard, poor grinding of the sealing surface and the like occur, the whole valve needs to be disassembled for repair, the process is complex, and the repair cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses the technical problem that will solve lies in current gate valve and carries out the leakproofness at the assembly and detect, when the leakproofness problem appears, and repair work is complicated loaded down with trivial details, and is with high costs.

Therefore, the utility model provides a gate valve check out test set, include

The workbench is arranged on the base;

the detection device is arranged on the workbench; having a detection chamber;

the process valve rod is axially vertical to the workbench and is arranged in the detection cavity in a sliding manner; the front end of the process valve rod is suitable for fixing the flashboard to be detected;

the first driving component is arranged between the base and the workbench in a sliding manner;

the detection cavity is suitable for being communicated with the middle cavity of the valve body to be detected and the opening end face of the detection cavity is in sealing and abutting joint with the opening of the middle cavity of the valve body to be detected;

the process valve rod is suitable for moving towards the inner part of the middle cavity of the valve body to be detected and enabling the flashboard to be detected to abut against the sealing surface of the seat ring of the valve body to be detected;

the detection cavity is suitable for being filled with detection fluid.

The detection device includes:

the fixing plate is fixed on the workbench; at least two fluid channels communicated with the outside are arranged on the upper part of the water tank;

the blind plate is hermetically arranged on the fixing plate; the detection cavity is formed in the blind plate, the process valve rod penetrates through the fixed plate in a sliding mode, and the front end of the process valve rod is located in the detection cavity;

any one of the fluid channels communicates with the detection chamber.

Further comprising:

the fixing seat is arranged at the front end of the process valve rod; the fixed seat is provided with fixing parts which are symmetrical left and right; any one of the fixing parts is suitable for fixing the flashboard to be detected.

Further comprising:

the first guide assembly is arranged between the first driving assembly and the workbench; the first guide assembly includes:

the first guide rail is arranged on the base along the direction that the process valve rod moves towards the valve body to be detected;

at least one first slide block fixed on the workbench; the first sliding block is arranged on the first guide rail in a sliding mode.

Further comprising:

and the connecting plate is arranged between the first sliding block and the workbench.

Further comprising:

the second driver is arranged on the workbench; and the driving end of the second driver is connected with the process valve rod.

The device also comprises at least two limiting components;

any spacing subassembly includes:

a third driver installed on the table;

the limiting part is fixed at the driving end of the third driver; the limiting part is suitable for moving along the extending direction of the process valve rod under the driving of the third driver;

the limiting part is suitable for abutting against and limiting the opening of the middle cavity of the valve body to be detected.

The limiting assemblies are symmetrically arranged on two sides of the process valve rod.

Further comprising:

and the at least one fourth driving assembly is suitable for driving any limiting assembly to move along the direction perpendicular to the extending direction of the process valve rod.

The device also comprises at least two groups of second guide assemblies; any of the second guide assemblies comprises:

the second guide rail corresponds to the limiting assembly and is arranged on the workbench on two sides of the process valve rod in a direction perpendicular to the extending direction of the process valve rod;

at least one second sliding block which is arranged on the second guide rail in a sliding way; the third drivers correspond to the second sliding blocks one by one and are fixed on the second sliding blocks;

the fourth drive assembly includes:

a fourth driver;

the driving disc is coaxially arranged with the process valve rod and is rotatably arranged on the workbench; the driving end of the fourth driver is hinged to the driving disc;

the connecting rods are arranged in one-to-one correspondence with the limiting assemblies; one end of any connecting rod is fixed on the second sliding block, and the other end of the connecting rod is fixed on the driving disc; the two connecting rods are arranged in central symmetry around the center of the driving disc;

the limiting assembly is suitable for synchronous movement under the driving of the fourth driver.

Further comprising:

and the controller is electrically connected with the first driving assembly, the second driver, the third driver and the fourth driver.

The technical scheme of the utility model, have following advantage:

1. the utility model provides a gate valve detection equipment, set up detection device on the workstation, set up the detection chamber on the detection device, the technology valve rod slides and wears to establish in detecting the intracavity, the front end of technology valve rod is fixed and is detected the flashboard, the workstation drives under the drive of first drive assembly and detects chamber and technology valve rod and moves towards the valve body that detects, make the detection chamber communicate with the lumen of detecting the valve body, and the junction seals up and sets up, technology valve rod drives the flashboard and continues to move to the lumen of detecting the valve body, make and detect the flashboard butt on the seat circle sealing surface of detecting the valve body, through injecting into detection fluid into detecting the intracavity, in order to detect the leakproofness that detects between flashboard and the valve body that detects, can be timely when the leakproofness problem appears treat that detect flashboard or seat circle sealing surface reprocess, when there is not the leakproofness problem, can carry this group of flashboards and valve body together to next process and assemble, when the leakproofness problem appears after avoiding assembling to accomplish, disassemble the valve body and overhaul, provide the yield of valve body assembly, reduced the cost of reprocessing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a gate valve detection device of the present invention;

fig. 2 is a schematic structural diagram of the gate valve detection device of the present invention;

FIG. 3 is a schematic view of a part of the workbench in the gate valve detecting apparatus of the present invention;

FIG. 4 is a first schematic view of the detection process of the gate valve detection device of the present invention;

FIG. 5 is a schematic view of the detection process of the gate valve detection device of the present invention;

fig. 6 is the detection process schematic diagram of the gate valve detection device of the present invention is three.

Description of reference numerals:

10-a base; 20-a production line; 30-a controller; 11-a connecting plate; 12-a shutter to be detected; 13-valve body to be detected; 131-a flange; 132-guide rail ribs; 133-valve seat;

1-a workbench;

2-a detection device; 21-fixing the plate; 211-a fluid channel; 22-a blind plate; 221-a detection chamber;

3-a process valve stem; 31-a fixed seat;

4-a first drive assembly; 41-a first driver; 42-a support frame;

5-a first guide assembly; 51-a first guide rail; 52-a first slide;

6-a second driver;

7-a limiting component; 71-a third driver; 72-a limiting part;

8-a fourth drive assembly; 81-a drive disc; 82-a connecting rod;

9-a second guide assembly; 91-a second guide rail; 92-second slider.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.

Example 1

The present embodiment provides a gate valve detection apparatus, as shown in fig. 1, including a base 10, a workbench 1, a detection device 2, a process valve rod 3, and a first driving assembly 4. The base 10 of check out test set sets up in the assembly line 20 one side of the valve body 13 that waits to detect of transport, and the first drive assembly 4 of installation on the base 10, and first drive assembly 4 includes first driver 41 and support frame 42, and support frame 42 is vertical to be installed on base 10, and workstation 1 is the flat plate structure of cuboid type, and the horizontal direction extends to be installed on support frame 42, and first driver 41 is installed on support frame 42 top, is suitable for along vertical direction promotion workstation 1 and does the up-and-down motion.

As shown in fig. 2, a first guiding assembly 5 is disposed between the workbench 1 and the supporting frame 42, the first guiding assembly 5 includes at least one first guiding rail 51 extending in the vertical direction and disposed on the supporting frame 42, and at least one first sliding block 52 slidably disposed on the first guiding rail 51, in this embodiment, two first guiding rails 51 are disposed and distributed on two sides of the supporting frame 42, two first sliding blocks 52 are disposed on each first guiding rail 51, a connecting plate 11 is disposed between the first sliding blocks 52 and the workbench 1, the connecting plate 11 is a rectangular flat plate structure, as shown in fig. 2, the connecting plate 11 and the workbench 1 form an L type structure.

The detection device 2 is arranged on the workbench 1, and the detection device 2 comprises a fixing plate 21 and a blind plate 22. As shown in any one of fig. 4 to 6, the fixed plate 21 is fixed on the lower end surface of the workbench 1, the blind plate 22 is fixed on the lower end surface of the fixed plate 21 in a sealing manner, the blind plate 22 is provided with the detection cavity 221, an opening of the detection cavity 221 is located on the lower end surface of the blind plate 22, that is, the opening end surface of the detection cavity 221 is the lower end surface of the blind plate 22, the process valve rod 3 extends in the vertical direction and penetrates through the fixed plate 21 in a sliding manner from top to bottom, the front end of the process valve rod is located in the detection cavity 221 of the blind plate 22, the fixed plate 21 is provided with at least two fluid channels 211 communicated with the outside, in this embodiment, two fluid channels 211 are provided, only one fluid channel 211 is shown in fig. 4 to 6, one of the fluid channels 211 is provided with an exhaust valve (not shown in the figure), the other fluid channel 211 is connected with a.

Driven by the first driver 41, the opening end face of the detection cavity 221 moves downwards and abuts against the opening of the middle cavity of the valve body 13 to be detected on the assembly line below, the opening of the middle cavity of the valve body 13 to be detected is the fixing flange 131, the flange face abuts against the opening end face of the detection cavity 221 in a sealing mode, the detection cavity 221 is communicated with the middle cavity of the valve body 13 to be detected, and the opening size of the detection cavity 221 is equal to or slightly smaller than that of the middle cavity. According to different specifications of the valve body 13 to be detected and the flashboard 12 to be detected, the matched blind plate 22 can be replaced, and the specification of the blind plate 22 can be defined according to the opening size of the detection cavity 221.

As shown in any one of fig. 4 to 6, a second driver 6 is disposed on the upper end surface of the workbench 1, a driving end of the second driver 6 is connected to the process valve rod 3, and the second driver 6 drives the process valve rod 3 to reciprocate along the vertical direction.

As shown in fig. 3, the workbench 1 is further provided with at least two limiting assemblies 7, in this embodiment, the limiting assemblies 7 are provided with two, and are symmetrically distributed on two sides of the process valve rod 3, each limiting assembly 7 includes a third driver 71 and a limiting portion 72, the third driver 71 adopts an oil cylinder or an air cylinder, the limiting portion 72 is fixed at a driving end of the third driver 71 through a connecting rod, the connecting rod is arranged on the workbench 1 in a penetrating manner, the limiting portion 72 is located below the workbench 1 and driven by the third driver 71, and the limiting portion 72 moves up and down along a vertical direction. The limiting part 72 is a hook claw, as shown in fig. 2, the hook claw is integrally of a trapezoidal structure, and the hook claw is suitable for hooking on a flange 131 at an opening of the valve body 13 to be detected, so that the valve body 13 to be detected and the detection device 2 are firmly fixed.

In this embodiment, a fourth driving assembly 8 is further provided to drive any one of the limiting assemblies 7 to move along the horizontal direction, so as to facilitate the hook claw to clamp the flange 131, as shown in fig. 3, a set of second guiding assemblies 9 is respectively provided on the work tables 1 at both sides of the process valve rod 3, the second guiding assemblies 9 are provided corresponding to the limiting assemblies 7, any one set of the second guiding assemblies 9 includes at least one second guide rail 91 arranged along the horizontal direction on the work table 1, at least one second slider 92 is slidably provided on the second guide rail 91, symmetrical long waist holes (not shown in the figure) are provided on the work tables 1 at both sides of the process valve rod 3, in this embodiment, two second guide rails 91 are provided in any one set of the second guiding assemblies 9, the two second guide rails 91 are symmetrically distributed at both sides of the long waist holes, both sides of the second slider 92 are respectively slidably provided in the two second guide rails 91, the third driver 71 is fixed on the second slider 92, and the connecting rod passes through the long waist hole.

The fourth driving assembly 8 includes a fourth driver (not shown), a driving disk 81 and a connecting rod 82, as shown in fig. 3, the driving disk 81 is coaxially disposed with the process valve rod 3 and rotatably mounted on the working table 1, a driving end of the fourth driver is hinged to the driving disk 81, and the fourth driver may adopt a push rod cylinder or the like, as required. Connecting rod 82 and spacing subassembly 7 correspond the setting, and arbitrary connecting rod 82 one end is fixed on second slider 92, and the other end is fixed on driving-disc 81, and two connecting rods 82 are central symmetry setting about the center of driving-disc 81. The limiting assemblies 7 on the two sides are suitable for synchronous movement under the driving of the fourth driver.

A controller 30 is further disposed on one side of the assembly line 20, and the controller 30 is electrically connected to the first driver 41, the second driver 6, the third driver 71, the fourth driver, the exhaust valve of the fluid passage, a low pressure pump (not shown) for delivering the detection fluid, and a high pressure pump (not shown) for performing pressure holding. The controller 30 also has conventional arrangements such as an indicator light and a buzzer.

The working process of the gate valve detection equipment provided by the embodiment is as follows:

the worker installs the blind plate 22 and the fixing seat 31 on the process valve rod 3 with proper specifications in advance according to the specifications of the valve body 13 to be detected and the flashboard 12 to be detected. When the valve body 13 to be detected is conveyed to a set position below the workbench 1 along with the production line 20, the two gate plates 12 to be detected are symmetrically installed on the fixed seat 31, and a preset pump inspection program is selected (the preset pressure value and the pressure maintaining time are set according to the specification and the pound level in the pump inspection program).

Fig. 4 to 6 illustrate the removal process that the process valve rod 3 drives to wait to detect flashboard 12 in proper order, open first driver 41 through controller 30, drive workstation 1 and move down, until the opening end face that detects chamber 221 and the flange 131 face butt that waits to detect valve body 13, then start second driver 6, promote process valve rod 3, the drive is waited to detect flashboard 12 and is continued to marcing to the lumen inside that waits to detect valve body 13, it forms the cooperation groove to wait between the flashboard 12 to detect for two, the cooperation groove moves along the bellied guide rail seat circle muscle 132 that waits to detect on the valve body 13 lumen inner wall, it will wait to detect flashboard 12 butt on the sealed face of disk seat 133.

And starting the third driver 71, moving the hook claws downwards to the position below the horizontal plane where the flange 131 is located, then starting the fourth driver, pushing the driving disc 81 to rotate by the fourth driver, driving the connecting rod 82, pulling the second slider 92 to move towards the process valve rod 3 by the connecting rod 82, horizontally moving the hook claws below the flange 131, starting the third driver 71 again, driving the hook claws to move upwards, and synchronously and spacing hooking the hook claws at two sides of the valve body 13 to be detected.

Then injecting a detection fluid through the fluid channel for tightness detection:

1. low pressure gas seal test (detection fluid is gas): the middle cavity is inflated through the fluid channel 211, the pressure is automatically increased to the test pressure, the pressure is maintained, the operating personnel sprays soap water to the sealing surfaces at the two sides, whether bubbles escape or not is observed, and after the pressure maintaining time is up, the worker presses a pressure relief button to relieve the pressure of the equipment. And entering the next procedure of high-pressure water sealing test.

2. High pressure water seal test (test fluid is liquid): when the test medium reaches the pressure value required by the test, the high-pressure pump automatically stops, the system automatically enters a pressure maintaining timing state, when the pressure maintaining timing is finished, a pressure maintaining timing end indicator lamp is lightened, and meanwhile, a buzzer sounds for prompting.

And finally, releasing pressure and draining water, and finishing the test. The process valve rod 3 pulls back the flashboard 12 to be detected, the hook claw is loosened, the radial movement is in place, and the workbench 1 moves upwards to the initial position. The pump inspector operates the assembly line 20 to complete the button, and the valve body 13 to be inspected and the gate plate 12 to be inspected automatically flow to the next process along with the pallet.

As a first alternative embodiment of embodiment 1, the limiting component 7, the fourth driving component 8 and the second guiding component 9 may not be provided, and only by the first driver 41 and the second driver 6 respectively driving the blind plate 22 and the gate plate 12 to be detected to press against the valve body 13 to be detected, the valve body 13 to be detected is firmly fixed on the assembly line 20.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A gate valve inspection apparatus, comprising:

the workbench (1) is arranged on the base (10);

a detection device (2) arranged on the workbench (1); having a detection chamber (221);

the process valve rod (3) is axially vertical to the workbench (1) and is arranged in the detection cavity (221) in a sliding manner; the front end of the process valve rod (3) is suitable for fixing the flashboard (12) to be detected;

the first driving component (4) is arranged between the base (10) and the workbench (1) in a sliding manner;

driven by the first driving assembly (4), the detection cavity (221) is suitable for being communicated with the middle cavity of the valve body (13) to be detected, and the opening end face of the detection cavity (221) is in sealing abutting connection with the opening of the middle cavity of the valve body (13) to be detected;

the technical valve rod (3) is suitable for moving towards the inner cavity of the valve body (13) to be detected and abutting the flashboard (12) to be detected on the seat ring sealing surface of the valve body (13) to be detected;

the detection cavity (221) is suitable for being filled with detection fluid.

2. Gate valve detection apparatus according to claim 1, characterized in that the detection means (2) comprise:

a fixing plate (21) fixed to the table (1); at least two fluid channels (211) communicated with the outside are arranged on the water tank;

the blind plate (22) is arranged on the fixing plate (21) in a sealing mode; the detection cavity (221) is formed in the blind plate (22), the process valve rod (3) penetrates through the fixing plate (21) in a sliding mode, and the front end of the process valve rod is located in the detection cavity (221);

any one of the fluid channels (211) communicates with the detection chamber (221).

3. The gate valve inspection apparatus according to claim 2, further comprising:

the fixing seat (31) is installed at the front end of the process valve rod (3); the fixed seat (31) is provided with fixed parts which are symmetrical left and right; any of the fixing portions is adapted to fix the shutter (12) to be detected.

4. The gate valve inspection apparatus according to claim 3, further comprising:

a first guide assembly (5) arranged between the first drive assembly (4) and the worktable (1); the first guide assembly (5) comprises:

at least one first guide rail (51) arranged on the base (10) in the direction of movement of the process valve rod (3) towards the valve body (13) to be tested;

at least one first slide (52) fixed to the table (1); the first sliding block (52) is arranged on the first guide rail (51) in a sliding mode.

5. The gate valve inspection apparatus according to claim 4, further comprising:

a connecting plate (11) arranged between the first slider (52) and the table (1).

6. The gate valve inspection apparatus according to claim 5, further comprising:

a second driver (6) arranged on the worktable (1); the driving end of the second driver (6) is connected with the process valve rod (3).

7. The gate valve inspection apparatus according to claim 6, further comprising at least two stop assemblies (7);

any one of the limiting assemblies (7) comprises:

a third driver (71) mounted on the table (1);

a stopper (72) fixed to the driving end of the third driver (71); the limiting part (72) is suitable for moving along the extending direction of the process valve rod (3) under the driving of the third driver (71);

the limiting part (72) is suitable for being pressed and limited at an opening of the middle cavity of the valve body (13) to be detected.

8. The gate valve inspection apparatus according to claim 7,

the limiting assemblies (7) are symmetrically arranged on two sides of the process valve rod (3).

9. The gate valve inspection apparatus according to claim 8, further comprising:

at least one fourth driving assembly (8) adapted to drive any of said stop assemblies (7) in a direction perpendicular to the extension of said process valve stem (3).

10. Gate valve inspection apparatus according to claim 9, characterized in that it further comprises at least two sets of second guide assemblies (9); any of the second guide assemblies (9) comprises:

at least one second guide rail (91) which corresponds to the limiting assembly (7) and is arranged on the workbench (1) on one side of the process valve rod (3) in a direction perpendicular to the extending direction of the process valve rod (3);

at least one second slider (92) slidingly arranged on said second guide rail (91); the third drivers (71) correspond to the second sliding blocks (92) one by one and are fixed on the second sliding blocks (92).

11. Gate valve detection apparatus according to claim 10, characterized in that the fourth drive assembly (8) comprises:

a fourth driver;

the driving disc (81) is coaxially arranged with the process valve rod (3) and is rotatably arranged on the workbench (1); the driving end of the fourth driver is hinged on the driving disc (81);

the connecting rods (82) are arranged in one-to-one correspondence with the limiting assemblies (7); one end of any connecting rod (82) is fixed on the second sliding block (92), and the other end of the connecting rod is fixed on the driving disc (81); the two connecting rods (82) are arranged in central symmetry relative to the center of the driving disc (81);

the limiting component (7) is suitable for synchronous movement under the driving of the fourth driver.

12. The gate valve inspection apparatus according to any one of claims 1 to 11, further comprising:

and the controller (30) is electrically connected with the first driving assembly (4), the second driver (6), the third driver (71) and the fourth driver.