CN116026582A

CN116026582A - Valve pressure test structure of supporting self-contained cold box

Info

Publication number: CN116026582A
Application number: CN202310164786.XA
Authority: CN
Inventors: 魏高鹏; 胡赟; 黄卫民; 李怡贤
Original assignee: Hangzhou Hangyang Koso Pump & Valve Co ltd
Current assignee: Hangzhou Hangyang Koso Pump & Valve Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-04-28

Abstract

The application discloses valve pressure testing structure of supporting self-contained cold box relates to the technical field of valve, including the box, set up in the inside valve of box, the valve is including the valve rod that runs through the box, still includes pressure testing mechanism, and pressure testing mechanism includes the stifle of fixed connection in the lateral wall of cold box, threaded connection opening and closing nut on the stifle, opening and closing nut rotates to be connected on the valve rod, and the valve rod wears to locate on the stifle. According to the valve rod pressure test device, tools such as a wrench drive the opening and closing nut to rotate around the axial lead of the valve rod, the opening and closing nut is in threaded connection with the blank cap, the opening and closing nut is displaced along the length direction of the valve rod, the valve rod is driven to be displaced along the length direction of the valve rod, the valve is opened, and pressure test is facilitated; compared with the actuating mechanism with larger volume, the pressure testing mechanism has smaller volume and simple structure, effectively reduces damage to the valve in the transportation process, saves the process of disassembling and assembling the actuating mechanism after pressure testing, and is more convenient.

Description

Valve pressure test structure of supporting self-contained cold box

Technical Field

The application relates to the technical field of valves, in particular to a valve pressure test structure of a complete set self-contained cooling box.

Background

The traditional air-separation cold box mainly adopts a manufacturing mode of manufacturing parts in factories and assembling and forming in the project site. The manufacturing mode is limited by conditions such as project site construction technology, equipment and the like, and has the problems of long installation period, relatively weak quality control and the like. In recent years, the integral manufacturing mode of the air separation cooling box is gradually developed, and the mode can effectively avoid the limitations of on-site assembly sites and construction technologies.

The special valve matched with the self-contained cold box needs to be subjected to pressure test before delivery or after being installed on a specific structure, and the conventional pressure test structure needs to install an actuating mechanism on the outer side of the self-contained cold box and drives the valve installed in the self-contained cold box to be opened through the actuating mechanism to perform pressure test.

But in the transportation process of the self-contained cold box, the actuating mechanism is installed in the transportation process, the volume of the actuating mechanism is large, the size of the protruding cold box is large, and in the transportation process, the actuating mechanism is easy to damage and damage the valve.

Disclosure of Invention

The utility model aims at providing a valve pressure test structure of supporting whole dress cold box, in order to solve the problem that conventional pressure test structure causes the damage of valve easily in the in-process of transportation.

The application provides a supporting valve pressure test structure of whole dress cooler bin adopts following technical scheme:

the utility model provides a supporting valve pressure testing structure of whole dress cold box, includes the box, set up in the inside valve of box, the valve is including running through the valve rod of box still includes pressure testing mechanism, pressure testing mechanism including fixed connection in the outer lateral wall of cold box stifle, threaded connection in opening and close the nut on the stifle, open and close the nut rotate connect in on the valve rod, the valve rod wears to locate stifle is last.

By adopting the technical scheme, the pressure testing mechanism replaces the executing mechanism, and only comprises a blank cap and an opening and closing nut, the opening and closing nut is driven to rotate around the axial lead of the valve rod by tools such as a spanner, the opening and closing nut is in threaded connection with the blank cap, the opening and closing nut is displaced along the length direction of the valve rod, the valve rod is driven to be displaced along the length direction of the valve rod, the valve is opened, and the pressure testing is facilitated; compared with the actuating mechanism with larger volume, the pressure testing mechanism has smaller volume and simple structure, effectively reduces damage to the valve in the transportation process, saves the process of disassembling and assembling the actuating mechanism after pressure testing, and is more convenient.

Optionally, the opening and closing nut is fixedly connected with a handle, and the handle comprises a connecting part fixedly sleeved on the opening and closing nut and a rod part fixedly connected on the connecting part.

Through adopting above-mentioned technical scheme, connecting portion fixed cover is established on opening and close the nut, drives connecting portion through handheld pole portion and rotates, just also drives the rotation of opening and close the nut, makes pressure testing mechanism have the effect of taking the spanner certainly, convenient operation.

Optionally, the connecting portion is provided with a nut groove for the opening and closing nut to be clamped in, and the nut groove and the opening and closing nut are in interference fit.

Through adopting above-mentioned technical scheme, nut groove and opening and close nut interference fit realize connecting portion and opening and close nut's fixed connection, simple structure.

Optionally, the blank cap fixedly connected with holding ring, connecting portion rotate and be connected with the holding ring, the holding ring is along circumference interval fixedly connected with a plurality of locating piece, the locating piece slide connect in the holding ring, connecting portion be provided with be used for with the locating piece cooperation is in order to restrict opening and close nut pivoted location structure.

Through adopting above-mentioned technical scheme, when the headstock nut takes place the displacement, the headstock nut can take place to rotate for the go-between to drive go-between synchronous displacement, the go-between drives the locating piece and slides on the locating ring, and after the valve was opened, through location structure and locating piece cooperation, the rotation of realization restriction connecting portion, just also the rotation of restriction headstock nut, the realization headstock nut rotates the postfixing.

Simultaneously, be provided with a plurality of locating piece, location structure can be according to the rotation angle and the corresponding locating piece cooperation of opening and close the nut, realizes opening and close the multiple angle fixation of nut.

Optionally, the positioning ring is provided with dovetail grooves corresponding to the positioning blocks one by one along the circumferential direction and used for the positioning blocks to be clamped in, and the positioning blocks are dovetail blocks matched with the dovetail grooves.

Through adopting above-mentioned technical scheme, the cooperation of forked tail piece and dovetail plays direction and spacing effect to the slip of locating piece, can effectively get rid of the condition that the go-between takes place the rotation at the influence of opening and close the nut rotation, improves the stability of the displacement of slip and go-between of locating piece.

Optionally, the location structure include with locating piece one-to-one fixed block, rotate connect in fixed cover on the connecting portion, connect in the fixed block with fixed rope between the fixed cover, one end fixed connection of fixed rope in on the fixed block, the other end twine in on the fixed cover, the fixed block has been seted up and has been supplied the fixed slot that the fixed block card was gone into, the fixed block slide connect in on the connecting portion, the fixed block with be provided with between the fixed cover and be used for driving the fixed block is slided towards the direction of locating piece elastic component.

Through adopting above-mentioned technical scheme, drive fixed cover and rotate around self axial lead and make fixed rope further twine on fixed cover, fixed rope pulling fixed block shifts out the fixed slot gradually, and the elastic component atress produces elastic deformation and keeps the trend that elasticity reset, when the fixed block shifts out the fixed slot completely and keeps fixed cover not to understand, can drive the nut through the handle and rotate this moment.

When the opening and closing nut rotates to a required angle and the fixing blocks are in one-to-one correspondence with the fixing grooves, the fixing sleeve is released, the elastic piece elastically resets, the fixing blocks are driven to slide towards the direction of the positioning blocks, the fixing ropes are gradually separated from the fixing sleeve, and the opening and closing nut is limited to rotate after the fixing blocks are clamped into the corresponding fixing grooves.

Optionally, the extension groove has been seted up to the handle, extend the groove follow connecting portion extend to the pole portion, the pole portion seted up with the linkage groove of extension groove intercommunication, pole portion slide be connected with the card go into and slide in linkage piece in the linkage groove, the linkage rope has been laid to the extension inslot, the one end winding of linkage rope in on the fixed cover, other end fixed connection in the cell wall of extension groove, the one end of linkage piece with the linkage rope corresponds.

Through adopting above-mentioned technical scheme, through pressing the linkage piece and moving towards the link inslot, the linkage piece butt is linked to the rope simultaneously to taut the rope that links makes the rope deviate from fixed cover, drives fixed cover and winds self axial lead rotation, drives the fixed piece and shifts out the fixed slot to and the elastic component atress produces elastic deformation, realizes opening and close the quick unblock of nut.

Simultaneously, after the opening and closing nut rotates to the required angle, the linkage block is released, the elastic piece resets and drives the fixed sleeve to rotate, the linkage rope is wound on the fixed sleeve again, the linkage rope drives the linkage block to reset, and the fixed block is clamped into the fixed groove, so that the quick fixation after the opening and closing nut rotates is realized.

Optionally, the connecting portion has offered and supplies the fixed cover embedding and rotate the rotation groove of connection, the circumference cell wall of rotation groove has been offered and has been run through the spout of the circumference outer wall of connecting portion, the fixed block card go into and slide in the spout, the one end intercommunication of extension groove the rotation groove.

By adopting the technical scheme, the fixed sleeve is embedded and rotationally connected in the rotating groove, so that the rotational connection of the fixed connection part is realized, and the rotation of the fixed sleeve is limited; the fixed block is blocked and slides in the spout, and the spout can play direction and spacing effect to the slip of fixed block, improves the stability that the fixed block slided, improves the accuracy that the fixed block blocked into the fixed slot.

Optionally, the fixed cover is including first loop portion, fixed connection in second loop portion on the first loop portion, first loop portion supplies the fixed rope is twined, second loop portion supplies the linkage rope is twined.

Through adopting above-mentioned technical scheme, fixed rope twines on first ring portion, and the linkage rope twines on second ring portion, effectively avoids fixed rope and the condition that the linkage rope takes place the intersection each other.

Optionally, the linkage piece fixedly connected with elastic block, the draw-in groove's cell wall is seted up and is supplied the elastic block card goes into and the spacing groove that slides.

Through adopting above-mentioned technical scheme, the elastic block card is gone into and is slided in the spacing inslot, plays spacing and the effect of direction to the slip of linkage piece, and when the linkage piece card was gone into the linkage groove, the cell wall butt and the extrusion of elastic block and linkage groove produced deformation, and when the elastic block was aligned with the spacing groove, the elastic block elasticity reset card was gone into in the spacing groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pressure testing mechanism replaces an executing mechanism, and only comprises a blank cap and an opening and closing nut, the opening and closing nut is driven by tools such as a wrench to rotate around the axial lead of the valve rod, the opening and closing nut is in threaded connection with the blank cap, the opening and closing nut is displaced along the length direction of the valve rod, the valve rod is driven to be displaced along the length direction of the valve rod, the valve is opened, and the pressure testing is facilitated; compared with an actuating mechanism with larger volume, the pressure testing mechanism has smaller volume and simple structure, effectively reduces damage to the valve in the transportation process, saves the process of disassembling and assembling the actuating mechanism after pressure testing, and is more convenient;

2. the linkage block is pressed to move towards the inside of the linkage groove, and simultaneously the linkage block is abutted against the linkage rope and tightens the linkage rope, so that the linkage rope is separated from the fixed sleeve, the fixed sleeve is driven to rotate around the axis of the fixed sleeve, the fixed block is driven to move out of the fixed groove, and the elastic piece is stressed to elastically deform, so that the quick unlocking of the opening and closing nut is realized;

3. after the closing nut rotates to a required angle, the linkage block is released, the elastic piece resets to drive the fixed sleeve to rotate, the linkage rope is wound on the fixed sleeve again, the linkage rope drives the linkage block to reset, and the fixed block is clamped into the fixed groove, so that the quick fixation after the opening and closing nut rotates is realized.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is an exploded schematic view of an embodiment of the present application;

FIG. 3 is a schematic view of the handle and positioning structure of an embodiment of the present application;

FIG. 4 is an exploded schematic view of a handle and positioning structure of an embodiment of the present application;

FIG. 5 is a schematic structural view of a connecting ring according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a retaining sleeve according to an embodiment of the present application;

FIG. 7 is a schematic view of the structure of a handle according to an embodiment of the present application;

fig. 8 is a schematic cross-sectional view of a handle according to an embodiment of the present application.

Reference numerals illustrate: 1. a case; 2. a valve; 21. a valve stem; 3. a cover is closed; 31. a positioning ring; 32. a dovetail groove; 4. opening and closing a nut; 5. a handle; 51. a connection part; 511. a rotating groove; 512. a chute; 52. a stem portion; 53. a nut groove; 54. a connecting ring; 55. a positioning block; 56. a fixing groove; 57. an extension groove; 58. a linkage groove; 59. a limit groove; 6. a positioning structure; 61. a fixed block; 62. a fixed sleeve; 621. a first ring portion; 622. a second ring portion; 63. a fixing rope; 7. an elastic member; 8. a linkage block; 81. an elastic block; 9. a linkage rope.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses a valve pressure test structure of supporting self-contained cold box.

Referring to fig. 1 and 2, a valve pressure test structure of a complete set self-contained cooling box comprises a box body 1, a valve 2 fixedly connected to the inside of the box body 1, and a pressure test structure, wherein the valve 2 comprises a valve rod 21 penetrating through the box body 1. The pressure test structure comprises a blank cap 3 fixedly connected to the outer side wall of the cold box, and an opening and closing nut 4 in threaded connection with the blank cap 3, wherein the opening and closing thread is in rotary connection with one end of a valve rod 21, which is away from the valve 2, the valve rod 21 axially penetrates through the blank cap 3, and the blank cap 3, the opening and closing nut 4 and the valve rod 21 are positioned on the same axis.

Referring to fig. 1 and 2, the cover 3 is fixedly connected to the case 1 through a bolt, the opening and closing nut 4 is sleeved at one end of the valve rod 21, the opening and closing nut 4 is connected to the valve rod 21 through a bolt driving an O-ring, a rod portion 52 of the bolt is arranged through the opening and closing nut 4 and is in threaded connection with one end of the valve rod 21, the opening and closing nut 4 is limited between the O-ring and the end portion of the valve rod 21, and the opening and closing nut 4 is in rotational connection with the valve rod 21. The cover 3 is integrally formed with an external thread part, the opening and closing nut 4 is integrally formed with an internal thread part, the opening and closing nut 4 is sleeved on the external thread part, and the external thread part and the threads of the internal thread part are mutually matched, so that the threaded connection of the opening and closing nut 4 and the cover 3 is realized.

Referring to fig. 2 and 3, the opening and closing nut 4 is connected with a handle 5, and the handle 5 includes a connection portion 51 sleeved on the opening and closing nut 4, and a rod portion 52 fixedly connected to a circumferential side wall of the connection portion 51. The connecting part 51 is provided with a nut groove 53 for clamping the opening and closing nut 4, and the nut groove 53 is in interference fit with the opening and closing nut 4.

Referring to fig. 2 and 3, a positioning ring 31 is fixedly connected to one side of the cover 3, a connecting ring 54 is rotatably connected to one side of the connecting portion 51, a plurality of positioning blocks 55 are fixedly connected to the connecting ring 54 at intervals in the circumferential direction, the number of the positioning blocks 55 is selected according to actual requirements, the positioning blocks 55 are L-shaped blocks, one end of each positioning block 55 is fixedly connected with the circumferential side wall of the connecting ring 54, and the other end of each positioning block 55 is slidably connected to the circumferential inner wall of the positioning ring 31. The connecting portion 51 is provided with a positioning structure 6 for cooperating with the positioning block 55 to limit the rotation of the start-stop nut 4. The circumferential inner wall of the positioning ring 31 is provided with dovetail grooves 32 which are in one-to-one correspondence with the positioning blocks 55 and matched with the positioning blocks 55, and the positioning blocks 55 are dovetail blocks which are clamped in and slide in the dovetail grooves 32.

Referring to fig. 4 and 5, the positioning structure 6 includes a fixing block 61 corresponding to the positioning block 55 one by one, a fixing sleeve 62 rotatably connected to the connecting portion 51, and a fixing rope 63 connected between the fixing block 61 and the fixing sleeve 62, one end of the fixing rope 63 is fixedly connected to one end of the fixing block 61, the other end is wound on a circumferential side wall of the fixing sleeve 62, the positioning block 55 is provided with a fixing groove 56 for the fixing block 61 to be clamped in, the fixing block 61 is slidably connected to the connecting portion 51, and an elastic member 7 for driving the fixing block 61 to slide towards the direction of the positioning block 55 is installed between the fixing block 61 and the fixing sleeve 62.

Referring to fig. 6, the fixing sleeve 62 includes a first ring portion 621 and a second ring portion 622 coaxial with each other, the second ring portion 622 is fixedly connected to one end of the first ring portion 621, the first ring portion 621 is wound with the fixing rope 63, the second ring portion 622 is wound with the linking rope 9, and the fixing rope 63 and the linking rope 9 are both conventional flexible steel wire ropes.

Referring to fig. 6 and 7, a rotating groove 511 into which the fixing sleeve 62 is inserted and rotatably connected is formed in one side of the connecting portion 51, and a sliding groove 512 penetrating through the circumferential outer wall of the connecting portion 51 is formed in the circumferential groove wall of the rotating groove 511, and the sliding grooves 512 are in one-to-one correspondence with the fixing blocks 61, and the fixing blocks 61 are engaged with and slide in the corresponding sliding grooves 512. The elastic member 7 is a spring, one end of which is fixedly connected to one end of the fixed block 61, and the other end of which is fixedly connected to the wall of the chute 512.

Referring to fig. 7 and 8, the handle 5 is provided with an extension groove 57, the extension groove 57 extends from the connection portion 51 to the rod portion 52, the rod portion 52 is provided with a linkage groove 58 communicated with the extension groove 57, the rod portion 52 is slidably connected with a linkage block 8 which is clamped in and slidably moved in the extension groove 57, a linkage rope 9 is paved in the extension groove 57, one end of the extension groove 57 is communicated with the rotation groove 511, one end of the linkage rope 9 is wound on a fixed sleeve 62, the other end of the linkage rope 9 is fixedly connected with the groove wall of the extension groove 57, the rod portion 52 is slidably connected with a linkage block 8 which is clamped in and slidably moved in the linkage groove 58, and one end of the linkage block 8 faces the linkage rope 9.

Referring to fig. 7 and 8, an elastic block 81 made of elastic material such as plastic is fixedly connected to one side of the linkage block 8, and a limit groove 59 into which the elastic block 81 is clamped and slides is formed in the groove wall of the linkage groove 58, and the extending direction of the limit groove 59 is the same as the groove depth direction of the linkage groove 58.

The implementation principle of the valve pressure test structure of the matched self-contained cooling box is as follows:

the pressure testing mechanism replaces an executing mechanism, the pressure testing mechanism only comprises a blank cap 3 and an opening and closing nut 4, the opening and closing nut 4 is driven by tools such as a wrench to rotate around the axial lead of the valve rod 21, the opening and closing nut 4 is in threaded connection with the blank cap 3, the opening and closing nut 4 is displaced along the length direction of the valve rod 21, the valve rod 21 is driven to be displaced along the length direction of the valve rod 21, the valve 2 is opened, and pressure testing is facilitated; compared with the actuating mechanism with larger volume, the pressure testing mechanism has smaller volume and simple structure, effectively reduces damage to the valve 2 in the transportation process, saves the process of disassembling and assembling the actuating mechanism after pressure testing, and is more convenient.

Through pressing the motion of linkage piece 8 towards the interior motion of link groove 58, simultaneously linkage piece 8 butt linkage rope 9 to taut linkage rope 9 makes linkage rope 9 deviate from fixed cover 62, drives fixed cover 62 and rotates around self axial lead, drives fixed piece 61 and shifts out fixed groove 56 to and elastic component 7 atress produces elastic deformation, realizes opening and close nut 4's quick unblock.

Simultaneously, after the start-stop nut 4 rotates to the required angle, the linkage block 8 is released, the elastic piece 7 resets and drives the fixed sleeve 62 to rotate, the linkage rope 9 winds on the fixed sleeve 62 again, the linkage rope 9 drives the linkage block 8 to reset, and the fixed block 61 is clamped into the fixed groove 56, so that the quick fixation after the start-stop nut 4 rotates is realized.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a supporting valve pressure test structure of whole dress cold box, includes box (1), set up in valve (2) inside box (1), valve (2) are including running through valve rod (21) of box (1), its characterized in that: still include pressure testing mechanism, pressure testing mechanism including fixed connection in the closing cap (3) of lateral wall of cold box, threaded connection in opening and close nut (4) on closing cap (3), opening and close nut (4) rotate connect in on valve rod (21), valve rod (21) wear to locate on closing cap (3).

2. The valve pressure test structure of a self-contained cooling box as claimed in claim 1, wherein: the on-off nut (4) is fixedly connected with a handle (5), and the handle (5) comprises a connecting part (51) which is arranged on the on-off nut (4) through a fixing sleeve (62) and a rod part (52) which is fixedly connected to the connecting part (51).

3. The valve pressure test structure of the matched self-contained cooling box according to claim 2, wherein: the connecting part (51) is provided with a nut groove (53) for clamping the opening and closing nut (4), and the nut groove (53) is in interference fit with the opening and closing nut (4).

4. The valve pressure test structure of the matched self-contained cooling box according to claim 2, wherein: the novel sealing cover is characterized in that the sealing cover (3) is fixedly connected with a positioning ring (31), the connecting portion (51) is rotationally connected with a connecting ring (54), the connecting ring (54) is fixedly connected with a plurality of positioning blocks (55) along the circumferential direction at intervals, the positioning blocks (55) are slidingly connected to the positioning ring (31), and the connecting portion (51) is provided with a positioning structure (6) which is matched with the positioning blocks (55) to limit the opening and closing nut (4) to rotate.

5. The valve pressure test structure of the matched self-contained cooling box as set forth in claim 4, wherein: the positioning ring (31) is provided with dovetail grooves (32) which are in one-to-one correspondence with the positioning blocks (55) and are used for clamping the positioning blocks (55), and the positioning blocks (55) are dovetail blocks matched with the dovetail grooves (32).

6. The valve pressure test structure of the matched self-contained cooling box as set forth in claim 4, wherein: the positioning structure (6) comprises fixed blocks (61) corresponding to the positioning blocks (55) one by one, a fixed sleeve (62) connected to the connecting portion (51) in a rotating mode, and a fixed rope (63) connected between the fixed blocks (61) and the fixed sleeve (62), one end of the fixed rope (63) is fixedly connected to the fixed blocks (61) while the other end is wound on the fixed sleeve (62), the positioning blocks (55) are provided with fixed grooves (56) for the fixed blocks (61) to be clamped in, the fixed blocks (61) are connected to the connecting portion (51) in a sliding mode, and elastic pieces (7) used for driving the fixed blocks (61) to slide towards the direction of the positioning blocks (55) are arranged between the fixed blocks (61) and the fixed sleeve (62).

7. The valve pressure test structure of the matched self-contained cooling box of claim 6, wherein: the handle (5) is provided with an extension groove (57), the extension groove (57) extends from the connecting portion (51) to the rod portion (52), the rod portion (52) is provided with a linkage groove (58) communicated with the extension groove (57), the rod portion (52) is connected with a linkage block (8) clamped in and sliding in the linkage groove (58) in a sliding mode, a linkage rope (9) is paved in the extension groove (57), one end of the linkage rope (9) is wound on the fixed sleeve (62), the other end of the linkage rope is fixedly connected with the groove wall of the extension groove (57), and one end of the linkage block (8) corresponds to the linkage rope (9).

8. The valve pressure test structure of a self-contained cooling box as claimed in claim 7, wherein: the connecting part (51) is provided with a rotating groove (511) which is used for embedding and rotationally connecting the fixed sleeve (62), the circumferential groove wall of the rotating groove (511) is provided with a sliding groove (512) penetrating through the circumferential outer wall of the connecting part (51), the fixed block (61) is clamped into and slides to the sliding groove (512), and one end of the extending groove (57) is communicated with the rotating groove (511).

9. The valve pressure test structure of a self-contained cooling box as claimed in claim 7, wherein: the fixed sleeve (62) comprises a first ring part (621) and a second ring part (622) fixedly connected to the first ring part (621), the first ring part (621) is used for winding the fixed rope (63), and the second ring part (622) is used for winding the linkage rope (9).

10. The valve pressure test structure of a self-contained cooling box as claimed in claim 7, wherein: the linkage block (8) is fixedly connected with an elastic block (81), and a limiting groove (59) for the elastic block (81) to clamp in and slide is formed in the groove wall of the linkage groove (58).