CN217714134U - Online water seal gate valve replacing device - Google Patents
Online water seal gate valve replacing device Download PDFInfo
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- CN217714134U CN217714134U CN202221735025.2U CN202221735025U CN217714134U CN 217714134 U CN217714134 U CN 217714134U CN 202221735025 U CN202221735025 U CN 202221735025U CN 217714134 U CN217714134 U CN 217714134U
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- seamless steel
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- pressing plate
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Abstract
The utility model provides an online water seal gate valve replacing device, which comprises an air bag, a brass pipe, a connecting flange, a first seamless steel pipe and a retainer ring; the air bag is in threaded connection with the upper end of the brass pipe; the connecting flange is fixed on the outer side of the first seamless steel pipe and is flush with the upper end of the first seamless steel pipe, and the check ring is fixed at the bottom of the inner side of the first seamless steel pipe; the lower end of the brass pipe passes through a through hole in the center of the retainer ring; a rubber pad and a pressing plate are arranged above the retainer ring, the rubber pad is positioned between the pressing plate and the retainer ring, and the pressing plate, the rubber pad and the retainer ring are fixed through bolts and nuts; the center of the pressing plate, the rubber pad and the retainer ring is provided with a through hole with the same diameter. The problem of the water seal gate valve change that exists must close the upper pipeline among the prior art is solved.
Description
Technical Field
The utility model belongs to the technical field of the water seal gate valve is changed, a device is changed to online water seal gate valve is related to.
Background
The water seal gate valve adopts water pressure as dynamic seal of a valve rod, the movement direction of the gate plate is vertical to the medium direction, and the gate plate can only be used for full opening and full closing and can be widely applied to gas pipelines. Produce at the water seal gate valve and leak to the same pipeline upper end of this gate valve does not have under the condition of other valves, will have rivers to leak, can only close other pipeline valves at this moment and dismantle the trouble gate valve, will influence production greatly, causes unnecessary economic loss.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the utility model provides an online water seal gate valve changes device has solved the water seal gate valve that exists among the prior art and has changed the problem that must close the upper pipeline.
In order to solve the technical problem, the utility model adopts the technical proposal that the on-line water seal gate valve replacing device comprises an air bag, a brass pipe, a connecting flange, a first seamless steel pipe and a retainer ring; the air bag is in threaded connection with the upper end of the brass pipe; the connecting flange is fixed on the outer side of the first seamless steel pipe and is flush with the upper end of the first seamless steel pipe, and the check ring is fixed at the bottom of the inner side of the first seamless steel pipe; the lower end of the brass pipe penetrates through a through hole in the center of the retainer ring; a rubber pad and a pressing plate are arranged above the check ring, the rubber pad is positioned between the pressing plate and the check ring, and the pressing plate, the rubber pad and the check ring are fixed through bolts and nuts; the center of the pressing plate, the rubber pad and the retainer ring is provided with a through hole with the same diameter.
Furthermore, the lower end of the brass pipe is in threaded connection with one end of the counter thread; the other end of the counter thread is connected with the air tap through threads.
Further, the device also comprises a ball valve and a second seamless steel pipe; the second seamless steel pipe is positioned on the side surface of the first seamless steel pipe and is communicated with the first seamless steel pipe in a welding mode, and the ball valve is arranged at the tail end of the second seamless steel pipe.
The water leakage gate valve further comprises a steel fork, a longitudinal U-shaped groove is formed above the steel fork, the width of the U-shaped groove is larger than the diameter of the brass pipe and the maximum diameter of a flange connecting bolt on the water leakage gate valve, and the length of the U-shaped groove is larger than the distance between the connecting bolts at the front end and the rear end of the flange on the water leakage gate valve; the width of the widest part of the steel fork is smaller than the inner side distance of two bolt holes opposite to the left end and the right end on the flange of the water leakage gate valve; the steel fork is evenly opened along the circumferencial direction has four screw holes, the diameter of screw hole is the same with the flange bolt hole diameter of the gate valve that leaks, and the position of screw hole corresponds with the flange bolt hole position of the gate valve that leaks.
The utility model has the advantages that:
1. the fault water seal gate valve can be replaced under the condition that the upper pipeline is not closed, and the problem that the upper pipeline is closed when the gate valve leaks under the condition that no other valves exist at the upper end of the same pipeline is solved.
2. The upper leakage pipeline is sealed by air bag expansion, and the operation is simpler and more convenient.
3. Adopt the form that the brass pipe segmentation is connected, intensity is higher, stretches into height-adjustable festival, and the practicality is stronger, accomodates more conveniently.
4. The air faucet is mounted at the lower end of the brass pipe, the air bag can be inflated by using the inflator or the air pump, the inflation is convenient and rapid, the air bag cannot escape after inflation is guaranteed, and only the air faucet needs to be pressed for deflation during deflation.
5. After the water leakage gate valve is detached, the air bag is lifted through the steel fork, so that the air bag is prevented from falling off, and the sealing is more reliable.
6. The whole of part of the device and the water leakage gate valve falls off, and a new gate valve is replaced offline, so that the operation safety is ensured.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a replacing device according to an embodiment of the present invention.
Fig. 2 is an installation diagram of a replacing device according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of the steel fork according to the embodiment of the present invention.
In the figure, 1, an air bag, 2, a brass tube, 3, a water leakage gate valve, 4, a connecting flange, 5, a first seamless steel tube, 6, a pressing plate, 7, a rubber pad, 8, a retaining ring, 9, an air nozzle, 10, a pair of threads, 11, a ball valve, 12, a second seamless steel tube and 13, a steel fork are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
The utility model provides an online water seal gate valve changes device, as shown in figure 1, include: the device comprises an air bag 1, a brass pipe 2, a connecting flange 4, a first seamless steel pipe 5 and a retainer ring 8; wherein, one end of the brass tube 2 is provided with 1/8 external thread, and the other end is provided with 1/8 internal thread. The air bag 1 (1/8 internal thread) is in threaded connection with the upper end (1/8 external thread) of the brass tube 2; the connecting flange 4 is welded on the outer side of the first seamless steel pipe 5 and is flush with the upper end of the first seamless steel pipe 5, the retainer ring 8 is welded at the bottom of the inner side of the first seamless steel pipe 5, the rubber gasket 7 is arranged on the retainer ring 8, and the rubber gasket 7 is pressed and fastened through the pressing plate 6, a plurality of bolts and nuts. The center of the pressing plate 6, the rubber pad 7 and the retainer ring 8 is provided with a through hole with the same diameter, and the diameter of the through hole is larger than or equal to that of the brass tube 2, so that the pressing plate can smoothly pass through the through hole during assembly and disassembly, and meanwhile, a certain sealing effect is achieved.
In some embodiments, the lower end (1/8 internal thread) of the brass tube 2 is connected with one end of a counter wire 10 (both ends are 1/8 external thread, and the inner hole is phi 6 mm); the other end of the wire 10 is in threaded connection with an air tap 9 (1/8 internal thread), the air bag 1 can be inflated and exhausted by using a common inflator through the air tap 9, and the air bag expands to seal the upper pipeline.
In some embodiments, the brass tubes 2 are provided in plurality, the brass tubes 2 are in threaded connection, and the number of the brass tubes 2 is increased or decreased according to actual needs.
In some embodiments, the second seamless steel pipe 12 is located on the side of the first seamless steel pipe 5 and is in welded communication with the first seamless steel pipe 5, the ball valve 11 is installed at the tail end of the second seamless steel pipe 12, when too much water is accumulated in the pipeline, the ball valve 11 is opened to drain the water, and the replacement operation is more reliable.
In some embodiments, the replacement device further comprises a steel fork 13; a longitudinal U-shaped groove is formed above the steel fork 13, the width of the U-shaped groove is slightly larger than the diameter of the brass pipe 2 and the maximum diameter of a flange connecting bolt on the water leakage gate valve 3, and the length of the U-shaped groove is larger than the distance between connecting bolts at the front end and the rear end of a flange on the water leakage gate valve 3, so that the steel fork 13 can smoothly pass through the connecting bolts at the front end and the rear end of the flange on the brass pipe 2 and the water leakage gate valve 3; fig. 3 shows that the width W of the widest part is slightly smaller than the inner side distance of two bolt holes opposite to the left and right ends on the upper flange of the water leakage gate valve 3, so as to ensure that the bolts on the left and right sides of the upper flange of the water leakage gate valve 3 can not block the insertion of the steel fork 13; the steel fork 13 is uniformly provided with four threaded holes along the circumferential direction, the diameter of each threaded hole is the same as that of a flange bolt hole of the water leakage gate valve 3, and the positions of the threaded holes correspond to the positions of the flange bolt holes of the water leakage gate valve 3.
The use method of the steel fork 13 comprises the following steps: after the replacing device is moved in place (namely H = 50-100 mm), after the medium is sealed by the expansion of the air bag 1, four bolts and nuts of the flange on the water leakage gate valve 3 are uniformly removed (namely the bolts and the nuts at the positions of 4 solid line holes of the steel fork 13), the remaining four bolts and nuts are slowly loosened to a gap of about 10-15mm between the flange on the water leakage gate valve 3 and the pipeline flange, the steel fork 13 is inserted into the gap, 4 holes of the bolts are removed from the steel fork 13 and the pipeline flange in an aligned mode, new bolts are installed, and the connection of the steel fork 13 is finished. At this time, the four bolts and the nuts which are not completely removed can be completely removed. At this time, the whole of the device composed of the connecting flange 4, the first seamless steel pipe 5, the pressure plate 6, the rubber pad 7, the retainer ring 8, the ball valve 11 and the second seamless steel pipe 12 and the water leakage gate valve 3 fall off. At the same time, the air bag 1 falls down and is supported by the steel fork 13.
The utility model discloses a theory of operation does:
will leak gate valve 3 and close, then lift the connecting tube of 3 lower flanges of gate valve that leak off, will the utility model discloses a connecting flange 4 is connected to 3 lower flanges of gate valve that leak, and gasbag 1 is dropped on clamp plate 6 this moment, and ball valve 11 is in the closed condition. And opening the water leakage gate valve 3, lifting the brass tube 2 to a position H (50-100 mm) shown in figure 2, inflating the air bag 1 through an air nozzle 9 by using an inflator or an air pump, and forming sealing after the air bag is expanded to be larger than the inner diameter of the pipeline. At this time, the ball valve 11 is opened to drain water, then four bolts and nuts at the same position of the upper flange of the water leakage gate valve 3 are removed according to the hole opening position of the steel fork 13 shown in fig. 3, the other four bolts and nuts of the upper flange are loosened until the gate valve sags by 10-15mm, and then the steel fork 13 is inserted into the pipe flange to be connected with the pipe flange through the bolts. After the steel fork 13 is fixed by the bolt connection, the four bolts and the nuts which are not completely removed can be completely removed. At this time, all the parts except the air bag 1, the brass tube 2, the air nozzle 9 and the counter thread 10 fall off. The new gate valve is used for replacing an old water leakage gate valve 3 offline, after the new gate valve is connected with a detached part replacing device, the brass tube 2 is lifted to the original position, at the moment, the upper pipeline flange is connected with the upper flange of the new gate valve through 4 bolts and nuts (the bolts and the nuts are arranged at the positions of dotted line holes of the steel fork 13), and at the moment, the new gate valve cannot fall off. The 4 bolts connected to the fork 13 are removed, the fork is removed and a new gate valve is tightened. Close ball valve 11, then deflate through air cock 9, gasbag 1 contracts, slowly descends to below the new gate valve, closes the new gate valve this moment, lift off the device of this application can.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (4)
1. An online water seal gate valve replacing device is characterized by comprising an air bag (1), a brass pipe (2), a connecting flange (4), a first seamless steel pipe (5) and a retainer ring (8); the air bag (1) is in threaded connection with the upper end of the brass tube (2); the connecting flange (4) is fixed on the outer side of the first seamless steel pipe (5) and is flush with the upper end of the first seamless steel pipe (5), and the check ring (8) is fixed at the bottom of the inner side of the first seamless steel pipe (5); the lower end of the brass pipe (2) passes through a through hole in the center of the retainer ring (8); a rubber pad (7) and a pressing plate (6) are arranged above the check ring (8), the rubber pad (7) is positioned between the pressing plate (6) and the check ring (8), and the pressing plate (6), the rubber pad (7) and the check ring (8) are fixed through bolts and nuts; through holes with the same diameter are formed in the centers of the pressing plate (6), the rubber pad (7) and the check ring (8).
2. The on-line water seal gate valve replacing device as claimed in claim 1, wherein the lower end of the brass tube (2) is in threaded connection with one end of the counter screw (10); the other end of the counter thread (10) is connected with the air tap (9) through a thread.
3. The on-line water seal gate valve replacing device according to claim 1, further comprising a ball valve (11), a second seamless steel pipe (12); the second seamless steel pipe (12) is positioned on the side surface of the first seamless steel pipe (5) and is communicated with the first seamless steel pipe (5) in a welding way, and the ball valve (11) is arranged at the tail end of the second seamless steel pipe (12).
4. The on-line water seal gate valve replacing device as claimed in claim 1, further comprising a steel fork (13), wherein a longitudinal U-shaped groove is formed above the steel fork (13), the width of the U-shaped groove is larger than the diameter of the brass tube (2) and the maximum diameter of a flange connecting bolt on the water leakage gate valve (3), and the length of the U-shaped groove is larger than the distance between the connecting bolts at the front end and the rear end of the flange on the water leakage gate valve (3); the width of the widest part of the steel fork (13) is less than the inner side distance of two bolt holes opposite to the left end and the right end on a flange on the water leakage gate valve (3); the steel fork (13) is uniformly provided with four threaded holes along the circumferential direction, the diameter of each threaded hole is the same as that of a flange bolt hole of the water leakage gate valve (3), and the positions of the threaded holes correspond to those of the flange bolt holes of the water leakage gate valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221735025.2U CN217714134U (en) | 2022-07-07 | 2022-07-07 | Online water seal gate valve replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221735025.2U CN217714134U (en) | 2022-07-07 | 2022-07-07 | Online water seal gate valve replacing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217714134U true CN217714134U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221735025.2U Active CN217714134U (en) | 2022-07-07 | 2022-07-07 | Online water seal gate valve replacing device |
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| CN (1) | CN217714134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189007A (en) * | 2023-09-23 | 2023-12-08 | 东北石油大学 | Oil field high pressure well does not release pressure and trades valve gear |
-
2022
- 2022-07-07 CN CN202221735025.2U patent/CN217714134U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189007A (en) * | 2023-09-23 | 2023-12-08 | 东北石油大学 | Oil field high pressure well does not release pressure and trades valve gear |
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