CN210701340U - Pressure dredging device suitable for pouring - Google Patents
Pressure dredging device suitable for pouring Download PDFInfo
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- CN210701340U CN210701340U CN201921387010.XU CN201921387010U CN210701340U CN 210701340 U CN210701340 U CN 210701340U CN 201921387010 U CN201921387010 U CN 201921387010U CN 210701340 U CN210701340 U CN 210701340U
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- flange
- sealing
- screw rod
- pouring
- reinforcing sleeve
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Abstract
The utility model discloses a pressure dredge suitable for pour and drench, its characterized in that: the screw rod is matched and connected with a threaded hole formed in the middle of the flange, and the sealing reinforcing sleeve is fixed on the flange and is in threaded fit with the screw rod to achieve sealing. The dredging device has good reverse sprinkling effect and high safety.
Description
Technical Field
The utility model relates to a pull throughs, concretely relates to area is pressed dredge suitable for pour and drench.
Background
In a refinery, in order to depressurize a facility or a pipeline during shutdown purging or during a facility-cut-out inspection, it is necessary to provide a back-shower at a low point of the facility or the pipeline. Because the inverted shower is in a closed state for a long time, coke, asphaltene, coke powder and the like are deposited, coked and solidified at the inverted shower valve, and when the inverted shower valve is required to be used, the pressure can not be released for discharging. In order to dredge the inverted shower, the traditional method is to open the inverted shower valve and poke the inverted shower valve by using a tool such as a hard steel bar for dredging, the method is not only difficult to be effective when hard solids are encountered, but also has two risks, on one hand, the system has residual pressure, and after the inverted shower is dredged, a medium in the system is suddenly sprayed out, so that the risk of injury to operators is easily caused; on the other hand, because the system has no pressure relief, whether the upstream and downstream valves have internal leakage or not is difficult to judge, once the valves leak internally, the media after dredging can be sprayed out in large quantity and cannot be controlled, and disastrous accidents are caused.
For example, the Chinese utility model patent ZL201520237597.1 (CN 204638663U) discloses a dredging device of a pipeline for emptying and pouring, which comprises a hand wheel, a lead screw, a nut, a flange with a neck, a sealing filler, a sealing gland and a supporting arm, wherein the device is characterized in that the nut is connected with the flange with the neck through the supporting arm, the sealing filler is arranged between the flange with the neck and the lead screw, the sealing filler has the effect of sealing, and the safety of dredging and pouring is improved. Firstly, the design connects the screw nut and the neck flange through the supporting arm, and the design is complex; secondly, the sealing adopts the packing, and the packing is pressed by the sealing gland, so that the risk of leakage of the sealing packing exists after the packing is repeatedly used for many times.
Disclosure of Invention
The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a pressure dredge that is applicable to and pours to drench that the design is simple, the security is high.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a take area dredge suitable for pour and drench which characterized in that: the screw rod is matched and connected with a threaded hole formed in the middle of the flange, and the sealing reinforcing sleeve is fixed on the flange and is in threaded fit with the screw rod to achieve sealing.
In order to facilitate the lead screw to break through hard solid objects, the upper end of the lead screw is preferably provided with a threaded drill.
In order to facilitate the rotation of the screw rod, preferably, the lower end of the screw rod is fixedly connected with a nut.
Preferably, a sealing gasket contacting with the inverted shower valve is arranged on the outer end face of the flange for facilitating the sealing fixation of the dredging device and the inverted shower valve.
Compared with the prior art, the utility model has the advantages of: 1) the flange is provided with the threaded hole, and the screw rod and the flange are installed in a matched mode through the threaded hole, so that the design is simple; 2) for further strengthening the sealing effect of the screw rod and the flange, the bottom of the flange is provided with the sealing reinforcing sleeve, and the sealing reinforcing sleeve is sleeved outside the screw rod through threads, so that the sealing filler is safer and more reliable compared with a sealing filler design.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in FIGS. 1 to 3, it is a preferred embodiment of the present invention.
Example 1
In this embodiment, be applicable to the area of falling area of drenching and press dredge, including lead screw 1, flange 2 and sealed boss 3, lead screw 1 is connected with the screw hole 21 cooperation that sets up at flange 2 middle part, and sealed boss 3 is fixed on flange 2 and is realized sealedly with 1 screw-thread fit of lead screw. The sealing reinforcing sleeve 3 is provided with internal threads, and the internal threads of the sealing reinforcing sleeve are matched with the external threads of the screw rod 1 for sealing.
In this embodiment, the upper end of the screw rod 1 is a screw-shaped drill 11.
In this embodiment, a nut 4 is fixedly connected to the lower end of the screw rod 1. In other embodiments, the nut 4 may be replaced with a handle.
Example 2
Example 2 differs from example 1 in that: the outer end face of the flange 2 is provided with a sealing gasket 5 which is contacted with the inverted shower valve.
The working principle is as follows: the method is characterized in that a sealing gasket 5 is additionally arranged on a flange 2 and connected with a reverse-flow valve, a screw rod 1 with a drill bit 11 is screwed into a threaded hole 21 of the flange 2, after the reverse-flow valve is completely opened, a nut 4 is screwed clockwise by a movable wrench, the drill bit 11 moves towards the reverse-flow side to enter the valve, the drill bit 11 continuously drills out blocked solids, the reverse-flow valve is unblocked finally, the nut 4 is screwed anticlockwise after the unblocked is confirmed, the drill bit 11 is slowly withdrawn, even if an inner medium in the reverse-flow valve is suddenly sprayed out due to the sealing gasket 5 and a sealing reinforcing sleeve 3, the flange 2 can be blocked in the reverse-flow valve by the flange 2, the leakage cannot occur, after the drill bit 11 is withdrawn to the reverse-flow valve, the reverse-flow valve is closed, the flange 2 is removed, and.
This design adopts lead screw 1, flange 2, sealed reinforcement sleeve 3, and this dredge pours and drenches effectual, the security height.
Claims (4)
1. The utility model provides a take area dredge suitable for pour and drench which characterized in that: the sealing device comprises a screw rod (1), a flange (2) and a sealing reinforcing sleeve (3), wherein the screw rod (1) is matched and connected with a threaded hole (21) formed in the middle of the flange (2), and the sealing reinforcing sleeve (3) is fixed on the flange (2) and is in threaded fit with the screw rod (1) to realize sealing.
2. The pressure dredger suitable for pouring and sprinkling of claim 1, wherein: the upper end of the screw rod (1) is provided with a threaded drill bit (11).
3. The pressure dredger suitable for pouring and sprinkling of claim 1, wherein: the lower end of the screw rod (1) is fixedly connected with a nut (4).
4. The pressure dredger suitable for pouring and sprinkling of claim 1, wherein: and a sealing gasket (5) in contact with the inverted shower valve is arranged on the outer end face of the flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387010.XU CN210701340U (en) | 2019-08-23 | 2019-08-23 | Pressure dredging device suitable for pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387010.XU CN210701340U (en) | 2019-08-23 | 2019-08-23 | Pressure dredging device suitable for pouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210701340U true CN210701340U (en) | 2020-06-09 |
Family
ID=70941009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921387010.XU Active CN210701340U (en) | 2019-08-23 | 2019-08-23 | Pressure dredging device suitable for pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210701340U (en) |
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2019
- 2019-08-23 CN CN201921387010.XU patent/CN210701340U/en active Active
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