CN215290498U - Device for protecting tail end water hammer of marine discharging pipeline of petrochemical facility - Google Patents
Device for protecting tail end water hammer of marine discharging pipeline of petrochemical facility Download PDFInfo
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- CN215290498U CN215290498U CN202120813770.3U CN202120813770U CN215290498U CN 215290498 U CN215290498 U CN 215290498U CN 202120813770 U CN202120813770 U CN 202120813770U CN 215290498 U CN215290498 U CN 215290498U
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- water hammer
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Abstract
The utility model discloses a device that is used for terminal water hammer of petrochemical industry facility row sea pipeline to protect, including the type of falling U return bend, flange branch pipe seat, check valve and 8 font blind slabs, the type of falling U return bend is installed at the very end of arranging the sea water flat tube, and the top of the type of falling U return bend is provided with the flange branch pipe seat that is linked together, is connected with 8 font blind slabs between the exit end of flange branch pipe seat and check valve. The check valve is automatically opened in a negative pressure or vacuum state in the pipeline, a large amount of air is sucked into a gap generated by the breaking of a water column in the inverted U-shaped bent pipeline, and the vacuum in the pipeline is effectively destroyed; then it will close immediately, entrap compressed air to form air bag to buffer the speed of newly added water column, eliminate the water hammer and its harm. Meanwhile, the characteristic that the sealing performance of the check valve is generally poor is utilized, so that air can be discharged from the pipeline in a trace manner, and accumulated air is gradually discharged, so that normal working pressure in the pipeline is gradually recovered, and the damage can not be caused.
Description
Technical Field
The utility model relates to a water hammer protector especially relates to a device that is used for the terminal water hammer protection of petrochemical industry facility sea drainage pipeline.
Background
The tail end of a petrochemical facility sea drainage pipeline can be broken by a water column and a cut-off closing water hammer is generated, on one hand, the pressure of the pipeline is excessively reduced due to the breaking of the water column, and the pipeline can be deformed and shriveled due to the instability of the pipeline caused by the vacuum in the pipeline; on the other hand, the pipeline can be broken by the pressure rise of the cut-off closing water hammer, so that the safe operation of the pipeline and equipment is seriously influenced. In the prior art, an air valve capable of freely entering and exiting air is generally arranged at the tail end of a sea drainage pipeline, so that the effect of breaking vacuum in the pipeline can be achieved to a certain extent, but the air drainage speed is too high, and the high pressure rise can be caused by cutoff to close a water hammer. Therefore, a need exists for a safe, reliable, cost effective water hammer guard.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem to a certain extent.
In order to solve the technical problem, the utility model provides a device that is used for the terminal water hammer of petrochemical industry facility row sea pipeline to protect can prevent effectively that the water column from breaking and the cut-off from closing the influence of water hammer to the pipeline.
The utility model provides a device that is used for terminal water hammer of petrochemical industry facility row sea pipeline to protect, a serial communication port, including the type of falling U return bend, flange branch pipe seat, check valve and 8 font blind slabs, the type of falling U return bend is installed at the most terminal of arranging the flat pipe of sea water, the top of the type of falling U return bend is provided with and is linked together the flange branch pipe seat, the exit end of flange branch pipe seat with be connected with between the check valve 8 font blind slabs.
Further, the check valve is a vertical check valve, and when the inside of the inverted U-shaped bent pipe is in a negative pressure state, the check valve is in an open state; when be the malleation state in the type of falling U elbow, the check valve is the closed condition.
Further, the vertical distance between the central line of the seawater discharging horizontal pipe and the central line of the top pipeline of the inverted U-shaped bent pipe is larger than 1000 mm.
Furthermore, a connector is arranged in the middle of the top end of the inverted U-shaped bent pipe, and the flange branch pipe seat is welded on the connector.
Furthermore, the inverted U-shaped elbow is formed by welding a plurality of right-angle elbows and a plurality of straight pipes.
Further, the flange branch pipe seat is connected with the check valve through a flange, and a sealing gasket is arranged between the 8-shaped blind plate and the flange branch pipe seat.
The utility model has the advantages that: the utility model provides a pair of a device that is used for terminal water hammer of petrochemical industry facility row sea pipeline to protect, including the type of falling U return bend, flange branch pipe seat, check valve and 8 font blind slabs, the type of falling U return bend is installed at the very end of arranging the sea water flat tube, and the top of the type of falling U return bend is provided with the flange branch pipe seat that is linked together, is connected with 8 font blind slabs between the exit end of flange branch pipe seat and check valve. The check valve is automatically opened in a negative pressure or vacuum state in the pipeline, a large amount of air is sucked into a gap generated by the breaking of a water column in the inverted U-shaped bent pipeline, and the vacuum in the pipeline is effectively destroyed; then it will close immediately, entrap compressed air to form air bag to buffer the speed of newly added water column, eliminate the water hammer and its harm. Meanwhile, the characteristic that the sealing performance of the check valve is generally poor is utilized, so that air can be discharged from the pipeline in a trace manner, and accumulated air is gradually discharged, so that normal working pressure in the pipeline is gradually recovered, and the damage can not be caused.
Drawings
Fig. 1 is a schematic structural view of a device for protecting a water hammer at the tail end of a drainage pipeline of a petrochemical facility according to the present invention;
in the figure, 1-an inverted U-shaped bent pipeline; 2-a flange base; 3-a check valve; 4-8 shaped blind plates; 5-bending the pipe; 6-discharging the seawater flat pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
According to the utility model discloses a concrete embodiment, the utility model provides a device that is used for terminal water hammer of petrochemical industry facility row's sea pipeline to protect, by shown in fig. 1, including type of falling U return bend 1, flange branch pipe seat 2, check valve 3 and 8 font blind plates 4, type of falling U return bend 1 is installed at row's sea water flat tube 6 endmost, and the top of type of falling U return bend 1 is provided with the flange branch pipe seat 2 that is linked together, is connected with 8 font blind plates 4 between the exit end of flange branch pipe seat 2 and check valve 3.
According to the specific embodiment of the utility model, the utility model provides a device for protecting the end water hammer of the sea drainage pipeline of petrochemical facilities, as shown in figure 1, the check valve 3 is a vertical check valve 3, when the inside of the inverted U-shaped elbow 1 is in a negative pressure state, the check valve 3 is in an open state; when the inside of the inverted U-shaped elbow 1 is in a positive pressure state, the check valve 3 is in a closed state. The check valve 3 is automatically opened in a negative pressure or vacuum state in the pipeline, a large amount of air is sucked into a gap generated by the breakage of a water column in the inverted U-shaped bent pipe 1, and the vacuum in the pipeline is effectively destroyed; then it will close immediately, entrap compressed air to form air bag to buffer the speed of newly added water column, eliminate the water hammer and its harm.
According to the utility model discloses a specific embodiment, the utility model provides a device that is used for the terminal water hammer of petrochemical industry facility row sea pipeline to protect, by shown in FIG. 1, the perpendicular distance between the central line of row's sea water horizontal pipe 6 and the center line of the top pipeline of the type of falling U return bend 1 is greater than 1000 mm.
According to the utility model discloses a concrete embodiment, the utility model provides a device that is used for the terminal water hammer of petrochemical industry facility row's sea pipeline to protect, by shown in fig. 1, the connector has been seted up at the middle part on the top of the type of falling U return bend 1, and the welding has flange branch pipe seat 2 on the connector. In the present embodiment, the inverted U-shaped bent pipe 1 is formed by welding a plurality of right-angle bends 5 and a plurality of straight pipes. In practical application, the flange branch pipe seat 2 can be prefabricated, and a combined prefabricated pipe fitting formed by welding the flange, the pipe section and the branch pipe seat is fixedly welded at the middle position of the upper edge of the top end of the inverted U-shaped elbow pipe 1. Further reducing the cost.
According to the utility model discloses a concrete embodiment, the utility model provides a device that is used for the terminal water hammer of petrochemical industry facility row's sea pipeline to protect, by shown in fig. 1, flange branch seat 2 and 3 flange joint of check valve are provided with seal gasket between 8 font blind plates 4 and flange branch seat 2. The 8-shaped blind plate is a commercially available finished product. One end of the flange of the 8-shaped blind plate occupies the gap between the flange branch pipe seat 2 and the check valve 3 to keep the pipeline smooth at ordinary times; when check valve 3 needs to be overhauled or changed, the blind flange end that trades 8 word blind flanges is with the interim pipeline that cuts off, convenient the change, simultaneously, utilizes the general not good enough characteristics of check valve 3 sealing performance, can make the air from the pipeline trace emission, gets rid of the air that accumulates gradually to resume normal operating pressure in the pipeline gradually, and can not cause the damage.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (6)
1. The utility model provides a device that is used for terminal water hammer of petrochemical industry facility row sea pipeline to protect, its characterized in that, includes the type of falling U return bend, flange branch pipe seat, check valve and 8 font blind slabs, the type of falling U return bend is installed at the very end of arranging the sea water flat tube, the top of the type of falling U return bend is provided with and is linked together the flange branch pipe seat, the exit end of flange branch pipe seat with be connected with between the check valve 8 font blind slabs.
2. The apparatus of claim 1, wherein the check valve is a vertical check valve, and the check valve is opened when a negative pressure is applied to the inverted U-shaped pipe; when be the malleation state in the type of falling U elbow, the check valve is the closed condition.
3. The apparatus of claim 1, wherein a vertical distance between a centerline of the horizontal sea drainage pipe and a centerline of the top end pipe of the inverted U-bend is greater than 1000 mm.
4. The device for protecting the end water hammer of the offshore pipeline of the petrochemical facility as claimed in claim 1, wherein a connection port is formed in the middle of the top end of the inverted U-shaped elbow, and the flange branch seat is welded to the connection port.
5. The device for protecting the end water hammer of the marine pipeline of petrochemical facilities as claimed in claim 1, wherein the inverted U-shaped elbow is formed by welding a plurality of right-angled bends and a plurality of straight pipes.
6. The device of claim 1, wherein the flange branch base is connected to the flange of the check valve, and a sealing gasket is disposed between the 8-shaped blind plate and the flange branch base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120813770.3U CN215290498U (en) | 2021-04-21 | 2021-04-21 | Device for protecting tail end water hammer of marine discharging pipeline of petrochemical facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120813770.3U CN215290498U (en) | 2021-04-21 | 2021-04-21 | Device for protecting tail end water hammer of marine discharging pipeline of petrochemical facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215290498U true CN215290498U (en) | 2021-12-24 |
Family
ID=79537187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120813770.3U Active CN215290498U (en) | 2021-04-21 | 2021-04-21 | Device for protecting tail end water hammer of marine discharging pipeline of petrochemical facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215290498U (en) |
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2021
- 2021-04-21 CN CN202120813770.3U patent/CN215290498U/en active Active
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