CN112268157A - Device and method for replacing small-caliber valve on line after plugging and throttling by adopting injection agent - Google Patents
Device and method for replacing small-caliber valve on line after plugging and throttling by adopting injection agent Download PDFInfo
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- CN112268157A CN112268157A CN202011293303.9A CN202011293303A CN112268157A CN 112268157 A CN112268157 A CN 112268157A CN 202011293303 A CN202011293303 A CN 202011293303A CN 112268157 A CN112268157 A CN 112268157A
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- valve
- injection
- agent
- opening
- sealant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/105—Closing devices introduced radially into the pipe or hose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention relates to a device and a method for replacing a small-caliber valve on line after plugging and throttling by adopting an injection agent, belonging to the technical field of valves.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a device and a method for replacing a small-caliber valve on line after plugging and throttling by adopting an injection agent.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. In daily production and operation, the phenomenon of valve internal leakage often occurs due to long-term scouring of media. The valve internal leakage loses the original throttling function of the switch of the valve. However, many devices cannot be stopped for maintenance, and how to replace the valve without stopping production is an urgent problem to be solved by many production enterprises. In the traditional process, no matter the medium condition of a pipeline is large or small, if the valve is required to be replaced on line without stopping conveying, the construction is carried out by adopting a method of installing a lower plugging head of a plugging device with pressure. And the small-sized pressurized plugging device also needs 6 meters of working space to be implemented. Thus, some sites without construction space cannot be implemented. And the valve is replaced by adopting a method of blocking under pressure on the site with an operation space, and the cost to be paid is several times or even dozens of times higher than that of the valve. The problems of strict construction conditions, limited space, high construction cost and the like exist.
Disclosure of Invention
In order to solve the technical problem, the invention relates to a device and a method for replacing a small-caliber valve on line after plugging and throttling by adopting an injection agent.
A device for on-line replacing a small-caliber valve after plugging throttling by adopting an injection agent comprises: saddle mouth nipple joint, trompil are annotated agent valve and injection tool, saddle mouth nipple joint sets up on the pipeline, is provided with the trompil on the saddle mouth nipple joint and annotates the agent valve, is provided with injection tool on the agent valve is annotated to the trompil.
Furthermore, the lower end of the saddle port short section is welded at the upper stream of the medium flowing in the inner leakage valve and at the position 100mm away from the inner leakage valve, and a first flange is arranged at the upper end of the saddle port short section and connected with the tapping injection valve.
Further, the lower end of the opening injection valve is provided with a second flange, the second flange is connected with the first flange through a bolt, and the right side of the opening injection valve is provided with a valve handle.
Further, the injection tool is arranged at the left end of the opening injection valve and is communicated with the opening injection valve.
Further, a pressure gauge is arranged on the injection tool.
A method for replacing a small-diameter valve on line after plugging and throttling by adopting an injection agent comprises the following steps:
s1: according to the flowing direction of a medium, a saddle mouth short section is welded at a position which is 100mm away from the inner leakage valve at the upstream of the inner leakage valve;
s2: mounting the tapping and agent injecting valve on the saddle port nipple;
s3: opening a hole below DN50 on the original pipeline by a method of opening a hole under pressure;
s4: mounting an injection tool on the open-cell injection valve;
s5: opening the opening agent injection valve, and injecting sealant into the original pipeline through the opening agent injection valve;
s6: the sealant can be extruded towards the direction of the inner leakage valve under the action of medium pressure in the pipeline, a pressure gauge of the injection tool is observed until the pressure does not rise any more, namely the sealant is filled in a space between the opening sealant injection valve and the inner leakage valve, the opening sealant injection valve is closed, the purpose of cutting off the flow of the medium is realized, and the sealant injection tool is always in a pressure maintaining state in the process;
s7: emptying and recovering media at the downstream of the internal leakage valve, preparing a new valve, quickly detaching the original internal leakage valve, installing the new valve, and enabling the new valve to be in a closed state;
s8: after the installation is finished, a new valve is opened, the injection tool is removed, and the sealant for blocking throttling is discharged under the action of medium flow pressure.
The invention has the beneficial effects that:
the invention provides a device and a method for replacing a small-caliber valve on line after plugging and throttling by adopting an injection agent, wherein the injection agent valve is additionally arranged after the online hole is opened, and the injection agent of a sealing agent is injected to the upstream of the valve through the injection agent valve to play a role of throttling a medium, so that the valve is replaced on line, the restriction of a construction space is broken through, the construction space is small, the operation is flexible, the construction cost is reduced, and the small-caliber valve with internal leakage is replaced on line.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
wherein:
1. saddle port nipples; 2. A perforated injection valve; 3. An injection tool;
11. a first flange; 21. A second flange; 22. A valve handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the installation methods and technical terms mentioned in the present invention are technical terms that are already clearly known in the technical field, and thus, the explanation thereof is not repeated. Moreover, the same reference numerals are used for the same components, which do not affect and should not constitute an exact understanding of the technical solutions for a person skilled in the art.
The first embodiment is as follows:
the invention relates to a device for replacing a small-caliber valve on line after plugging and throttling by adopting an injection agent, which comprises the following components: saddle mouth nipple joint 1, trompil are annotated agent valve 2 and injection tool 3, saddle mouth nipple joint 1 sets up on the pipeline, be provided with the trompil on saddle mouth nipple joint 1 and annotate agent valve 2, be provided with injection tool 3 on the agent valve 2 is annotated in the trompil, so set up and solved that the construction space is limited, construction cost is high, can not change the problem of valve on line, install additional after adopting online trompil and annotate agent valve 2, pour into the sealant into the valve upper reaches through annotating agent valve 2 and play the effect of throttling medium, thereby realize changing the valve on line, break through the construction space restriction, it is little to have reached the construction space, the flexible operation, effects such as construction cost reduction.
The lower end of the saddle port short section 1 is welded at the upper stream of medium flowing in the inner leakage valve and at the position 100mm away from the inner leakage valve, the flange I11 is arranged at the upper end of the saddle port short section 1, the flange I11 is connected with the tapping agent injection valve 2, the problem that the throttling effect of agent injection plugging is not ideal is solved, the lower end of the saddle port short section 1 is welded at the upper stream of medium flowing in the inner leakage valve and at the position 100mm away from the inner leakage valve, the sealant is sufficient, and the good throttling effect of agent injection plugging is achieved.
The lower extreme of agent valve 2 is annotated in the trompil is provided with flange two 21, and flange two 21 passes through bolted connection with flange one 11, and the right side of agent valve 2 is annotated in the trompil is provided with valve handle 22, so set up and solved that the agent valve 2 is annotated in the trompil and saddle mouth nipple joint 1 is connected unstable, not tight problem, through annotating at the trompil respectively and annotating on agent valve 2 and saddle mouth nipple joint 1 and pass through bolted connection, reached and connected firmly, sealed tight effect.
The injection tool 3 is arranged at the left end of the hole opening injection valve 2 and is communicated with the hole opening injection valve 2, and the arrangement enables a pressure gauge on the injection tool 3 to detect the pressure in the pipeline.
The injection tool 3 is provided with a pressure gauge, which is arranged to facilitate control of the sealant usage.
Example two:
a method for replacing a small-diameter valve on line after plugging and throttling by adopting an injection agent is characterized by comprising the following steps:
s1: according to the flowing direction of the medium, a saddle nipple 1 is welded at a position which is 100mm away from the inner leakage valve at the upstream of the inner leakage valve, so that the sealant is sufficient, and a good sealant injection, blocking and throttling effect is achieved;
s2: installing a tapping and injection valve 2 on the saddle port nipple 1;
s3: opening a hole below DN50 on the original pipeline by a method of opening a hole under pressure;
s4: mounting an injection tool 3 on the open-pore injection valve 2;
s5: opening the opening agent injection valve 2, and injecting sealant into the original pipeline through the opening agent injection valve 2;
s6: the sealant can be extruded towards the direction of the inner leakage valve under the action of medium pressure in the pipeline, a pressure gauge of the injection tool 3 is observed until the pressure does not rise any more, namely the sealant is filled in the space between the hole-opening sealant injection valve 2 and the inner leakage valve, the hole-opening sealant injection valve 2 is closed, the purpose of cutting off the flow of the medium is realized, the sealant injection tool is always in a pressure maintaining state in the process, and the arrangement is convenient for controlling the sealant consumption to avoid waste or insufficient sealant consumption;
s7: emptying and recovering media at the downstream of the internal leakage valve, preparing a new valve, quickly detaching the original internal leakage valve, installing the new valve, and enabling the new valve to be in a closed state;
s8: after the installation is completed, a new valve is opened, the injection tool 3 is removed, and the sealant blocking the throttling is discharged under the action of the medium flow pressure.
The working process is as follows:
according to the flowing direction of a medium, a saddle mouth short section 1 is welded at a position which is 100mm away from the inner leakage valve at the upstream of the inner leakage valve; installing a tapping and injection valve 2 on the saddle port nipple 1; opening a hole below DN50 on the original pipeline by a method of opening a hole under pressure; mounting an injection tool 3 on the open-pore injection valve 2; opening the opening agent injection valve 2, and injecting sealant into the original pipeline through the opening agent injection valve 2; the sealant can be extruded towards the direction of the inner leakage valve under the action of medium pressure in the pipeline, the pressure gauge of the injection tool 3 is observed until the pressure does not rise any more, namely the sealant is filled in the space between the opening sealant injection valve 2 and the inner leakage valve, the opening sealant injection valve 2 is closed, the purpose of cutting off the medium flow is realized, and the sealant injection tool is always in a pressure maintaining state in the process; emptying and recovering media at the downstream of the internal leakage valve, preparing a new valve, quickly detaching the original internal leakage valve, installing the new valve, and enabling the new valve to be in a closed state; after the installation is finished, a new valve is opened, the injection tool 3 is removed, the sealant for blocking throttling is discharged under the action of medium flow pressure, and the on-line replacement of the inner leakage valve is finished.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides an adopt and annotate device that online change small-bore valve of agent shutoff throttle which characterized in that includes: saddle mouth nipple joint (1), trompil are annotated agent valve (2) and injection tool (3), saddle mouth nipple joint (1) sets up on the pipeline, is provided with the trompil on saddle mouth nipple joint (1) and annotates agent valve (2), is provided with injection tool (3) on trompil is annotated agent valve (2).
2. The device for replacing the small-caliber valve on line after plugging throttling by the injection agent is characterized in that the lower end of the saddle port short section (1) is welded at the position which is 100mm away from the inner leakage valve and is positioned at the upstream of the medium flowing in the inner leakage valve, the upper end of the saddle port short section (1) is provided with a first flange (11), and the first flange (11) is connected with the tapping injection agent valve (2).
3. The device for replacing the small-caliber valve on line after plugging and throttling by the injection agent is characterized in that a second flange (21) is arranged at the lower end of the opening injection valve (2), the second flange (21) is connected with the first flange (11) through a bolt, and a valve handle (22) is arranged on the right side of the opening injection valve (2).
4. The device for on-line replacement of the small-bore valve after plugging throttling with the injection agent is characterized in that the injection tool (3) is arranged at the left end of the open-hole injection valve (2) and is communicated with the open-hole injection valve (2).
5. The device for on-line replacement of the small-caliber valve after plugging throttling by the injection agent is characterized in that a pressure gauge is arranged on the injection tool (3).
6. A method for replacing a small-diameter valve on line after plugging and throttling by adopting an injection agent is characterized by comprising the following steps:
s1: according to the flowing direction of a medium, a saddle mouth short section (1) is welded at a position which is 100mm away from the inner leakage valve at the upstream of the inner leakage valve;
s2: mounting the tapping and injection valve (2) on the saddle port nipple (1);
s3: opening a hole below DN50 on the original pipeline by a method of opening a hole under pressure;
s4: mounting an injection tool (3) on the open-pore injection valve (2);
s5: opening the opening agent injection valve (2), and injecting sealant into the original pipeline through the opening agent injection valve (2);
s6: the sealant can be extruded towards the direction of the inner leakage valve under the action of medium pressure in the pipeline, a pressure gauge of the injection tool (3) is observed until the pressure does not rise any more, namely the sealant is filled in the space between the opening sealant injection valve (2) and the inner leakage valve, the opening sealant injection valve (2) is closed, the purpose of cutting off the flow of the medium is realized, and the sealant injection tool is always in a pressure maintaining state in the process;
s7: emptying and recovering media at the downstream of the internal leakage valve, preparing a new valve, quickly detaching the original internal leakage valve, installing the new valve, and enabling the new valve to be in a closed state;
s8: after the installation is finished, a new valve is opened, the injection tool (3) is removed, and the sealant which blocks the throttling is discharged under the action of the medium flow pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293303.9A CN112268157A (en) | 2020-11-18 | 2020-11-18 | Device and method for replacing small-caliber valve on line after plugging and throttling by adopting injection agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293303.9A CN112268157A (en) | 2020-11-18 | 2020-11-18 | Device and method for replacing small-caliber valve on line after plugging and throttling by adopting injection agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112268157A true CN112268157A (en) | 2021-01-26 |
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ID=74339654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011293303.9A Pending CN112268157A (en) | 2020-11-18 | 2020-11-18 | Device and method for replacing small-caliber valve on line after plugging and throttling by adopting injection agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112268157A (en) |
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2020
- 2020-11-18 CN CN202011293303.9A patent/CN112268157A/en active Pending
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