CN113324839A - Pressure test method, device and system for short pipe and pipeline with wing ring - Google Patents
Pressure test method, device and system for short pipe and pipeline with wing ring Download PDFInfo
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- CN113324839A CN113324839A CN202110591770.8A CN202110591770A CN113324839A CN 113324839 A CN113324839 A CN 113324839A CN 202110591770 A CN202110591770 A CN 202110591770A CN 113324839 A CN113324839 A CN 113324839A
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- 238000010998 test method Methods 0.000 title description 3
- 238000012360 testing method Methods 0.000 claims abstract description 99
- 238000010276 construction Methods 0.000 claims abstract description 45
- 238000003780 insertion Methods 0.000 claims abstract description 19
- 230000037431 insertion Effects 0.000 claims abstract description 19
- 238000004873 anchoring Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 34
- 238000000034 method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
- F16L21/00—Joints with sleeve or socket
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/10—Sleeveless joints between two pipes, one being introduced into the other
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
Abstract
The invention provides a wing-ring short pipe, wherein a wing ring is arranged on the outer surface of the wing-ring short pipe along the circumferential direction and used for anchoring a ballast; the anchor blocks are concrete structures poured on the wing rings to coat the wing rings and the wing ring short pipes. The wing-ring-equipped short pipe is adopted during pressure test of the pipeline, so that the condition that the buttress needs to be arranged at the tail end of the pipeline and needs to be removed when the pipeline continues to take over during pressure test of the pipeline in the prior art is changed, the construction cost is greatly saved, the water cut-off time is reduced, and the economic benefit and the social benefit are improved. The invention also provides a pipeline pressure testing device and a system, wherein the pipeline pressure testing device comprises the wing-ring short pipe, the disc-inserted blind pipe/disc-inserted short pipe and the sleeve which are sequentially connected end to end. When the pipeline is tested, the valve of the main pipe valve can be opened completely to participate in pressure testing, so that the valve is not used as a pressure testing baffle; when the pressure test of the pipe section is finished and normal water delivery is needed, the coiled insertion blind pipe is taken out, the coiled insertion short pipe is replaced, and the pipeline can deliver water normally.
Description
Technical Field
The invention relates to the technical field of pipeline pressure test, in particular to a wing-ring short pipe, a pipeline pressure test method, a device and a system.
Background
The pipeline pressure test is an important link in pipeline construction and is a one-time comprehensive inspection on the material performance, construction quality and overall quality of a pipeline. After the pipeline is built, the pipeline can be put into operation only through two pressure test tests, namely pipeline strength pressure test and pipeline tightness pressure test. In China, the pressure near a water plant is usually 0.4-0.5 MPa, and the test pressure of a municipal water supply pipeline is usually 1.0 MPa. At present, the ductile cast iron pipe is widely applied to municipal water supply pipelines, the tensile force born by a pipeline joint is almost zero, and in order to ensure the installation quality of the pipeline and avoid large slippage, a huge pipe plug buttress needs to be arranged at the tail end of the pipeline. When the pipeline end is required to be continuously connected, the concrete buttress needs to be detached, the labor and the materials are wasted, the repeated utilization cannot be realized, and the construction difficulty is very high. Some construction units are convenient to take over in the future, and concrete buttresses are replaced by the block stones, so that accident potential is caused, and water supply safety is influenced.
According to construction and acceptance specifications, the pressure test length of the municipal water supply pipeline must not exceed 1 km. However, as the construction requirements for municipal infrastructure such as roads are increasing, not only is the construction quality required to be good, but also the construction period is required to be short. Under the influence of the atmosphere, the time of arranging the municipal water supply pipeline for construction by a road construction department is greatly shortened, continuous construction is often required, and the pipeline is laid after the municipal water supply pipeline is subjected to sectional pressure testing. On one hand, pipeline construction units need to obey the construction period arrangement of road construction departments, and on the other hand, the pipeline construction units need to perform segmented pressure testing, so that the valves are usually closed and used as baffles for pressure testing, and unidirectional stress damage of the valves is caused. After the pipeline is put into normal water delivery, the valve is not closed tightly to cause water leakage, and the subsequent use quality is influenced.
Disclosure of Invention
Therefore, the winged ring short pipe, and the pipeline pressure testing method, device and system are needed to be provided, after the structure is adopted, in the pipeline construction process, the huge pipe blocking buttress does not need to be detached, the construction cost is greatly saved, the water cut-off time is reduced, and therefore the economic benefit and the social benefit of a water supply enterprise are improved.
In order to achieve the above object, a first aspect of the present invention provides a winged-ring short pipe, the outer surface of which is provided with a wing ring along the circumferential direction, the wing ring being used for anchoring a ballast;
the anchor blocks are arranged on the wing rings and used for coating the wing rings and the concrete structure with the wing ring short pipes.
Preferably, the wing ring comprises reinforcing steel bars and a reinforcing hoop;
the reinforcing steel bars are uniformly arranged on the outer surface of the wing-ring short pipe along the circumferential direction of the wing-ring short pipe and are distributed outwards in a divergent manner by taking the axis of the wing-ring short pipe as the center;
the reinforcing hoops are arranged on the reinforcing steel bars along the width direction of the reinforcing steel bars and connected with each reinforcing steel bar to form an annular structure.
Preferably, the outer surface of the reinforcing bar is provided with a plurality of teeth.
Preferably, one end of the wing-ring-containing short pipe is provided with a detachable blind plate.
Preferably, the wing-ring-provided short pipe and the blind plate are made of nodular cast iron.
The invention provides a pipeline pressure test device, which comprises a wing-ring short pipe, a disc-inserted blind pipe/disc-inserted short pipe and a sleeve pipe which are connected end to end in sequence, wherein the wing-ring short pipe, the disc-inserted blind pipe/disc-inserted short pipe and the sleeve pipe are connected in sequence;
the wing ring of the wing ring short pipe is provided with a ballast;
the disc plugging blind pipe and the disc plugging short pipe are optionally arranged in one.
Preferably, the wing-ring short pipe, the disc-inserted blind pipe/disc-inserted short pipe and the sleeve are detachably connected.
In a third aspect, the invention provides a pipeline pressure testing system, which comprises the pipeline and the pipeline pressure testing device of the second aspect.
Preferably, the conduit comprises a first conduit and a second conduit;
the wing-ring-containing short pipe of the pipeline pressure testing device is connected with the first pipeline, and the sleeve of the pipeline pressure testing device is connected with the second pipeline.
Preferably, a valve is arranged at one end of the first pipeline connected with the wing-ring short pipe.
The invention provides a pressure test construction method for a pipeline, which comprises the following steps:
a first pipeline is laid in front of a position of a ballast of a pressure test pipe section, a socket is arranged at a position, close to the position of the ballast, of the first pipeline, the distance between the inner bottom of the socket and the position of the ballast is equal to the distance between a socket of a wing-ring short pipe and a wing ring, and the wing-ring short pipe is the wing-ring short pipe in any one embodiment of the invention;
inserting the plug of the wing-ring-provided short pipe into a socket of a first pipeline, supporting a flange connector of the wing-ring-provided short pipe from the ground by using a support piece, enabling the wing-ring-provided short pipe and the flange to be positioned on the same straight line, and pouring a block of concrete at the position of the block, so that the block supports the wing ring;
mounting a disc inserting blind pipe on a flange interface of the wing ring short pipe, wherein one end of the disc inserting blind pipe is the flange interface, the other end of the disc inserting blind pipe is closed, and the flange interface of the disc inserting blind pipe is butted with the flange interface of the wing ring short pipe;
a detachable sleeve is arranged at the closed end of the disc insertion blind pipe, and one end of the sleeve, far away from the disc insertion blind pipe, is connected with a second pipeline behind the pressure test pipe section;
carrying out pipeline pressure test on a front pipeline, after the pressure test is finished, disassembling the sleeve, disassembling the wing-ring short pipe, and installing a disc short pipe on a flange interface of the wing-ring short pipe, wherein one end of the disc short pipe is the flange interface, the other end of the disc short pipe is a socket, the flange interface of the disc short pipe is in butt joint with the flange interface of the wing-ring short pipe, and the length and the diameter of the disc short pipe are the same as those of the wing-ring short pipe;
and the sleeve is arranged on the coiled short plug pipe and the second pipeline, one end of the sleeve is connected with the socket of the coiled short plug pipe, and the other end of the sleeve is connected with the second pipeline of the pressure test pipe section.
Further, the method also comprises the following steps: and after the tamping pier is solidified and reaches the preset strength, the supporting piece is detached.
Different from the prior art, the invention has the following beneficial effects:
(1) the invention provides a wing ring short pipe. When pipeline construction is to the end, install the wing ring nozzle stub, set up the anchor block on the wing ring, can increase pipe-line system's weight in order to support the thrust of water-resistant, guarantee that the pipeline is firm not displaced, changed prior art and need set up huge concrete buttress at the pipeline end when the pipeline pressure testing, need demolish the condition of concrete buttress when continuing to take over to save the construction cost greatly, reduce the time of cutting off the water, improved the economic benefits and the social of water supply enterprise.
(2) The invention further provides a pipeline pressure test device which comprises a wing-ring short pipe, a disc-inserted blind pipe/disc-inserted short pipe and a sleeve which are sequentially connected end to end. When the pipeline is constructed, a pipeline pressure test device (a short pipe with a wing ring, a disc insertion blind pipe and a sleeve pipe are buried in sequence) is arranged at a dividing point of a pressure test pipe section; laying pipelines at other parts according to a design drawing, and continuously constructing without the limitation of the pressure test length; and then, pouring a pressure test ballast on the wing ring according to the construction site condition, thereby forming the whole pipeline pressure test system. Through setting up the dish blind pipe of inserting, can divide into a plurality of pressure testing pipe section with the pipeline, each pressure testing pipe section is separated stifled totally, each other does not influence. When the pipeline is tested, the valve of the main pipe valve is opened completely to be tested, so that the valve is not used as a pressure test baffle. When the pipe section pressure test is completed and normal water delivery operation is required, the coiled insertion blind pipe is taken out, the coiled insertion short pipe is replaced, the pipe sections are mutually communicated, and the pipeline can deliver water normally. In addition, the replaced disk insertion blind pipes can be recycled.
Drawings
FIG. 1 is a schematic structural view of a pier arranged at the tail end of a water supply pipeline in the prior art;
FIG. 2 is a schematic structural view of a winged loop spool according to an embodiment;
FIG. 3 is a schematic cross-sectional view taken along line A-A' of FIG. 2;
FIG. 4 is a schematic structural view of another embodiment of the winged loop spool;
fig. 5 is a schematic structural diagram of the pipeline pressure testing system according to the embodiment.
Description of reference numerals:
1. a water supply pipe; 12. a pipe interface;
2. buttress;
3. a wing-ring short pipe; 31. a wing ring; 311. reinforcing steel bars; 3111. teeth; 312. a reinforcing hoop; 32. a blind plate; 33. a flange interface; 34. a socket;
4. carrying out pier rolling;
5. inserting a blind pipe into a disc;
6. a short pipe is inserted in a disc way;
7. a sleeve;
8. a pipeline; 81. a first conduit; 82. a second conduit.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, in the prior art, when the pipeline is tested, the pipe plug at the end of the water supply pipeline 1 will produce a pulling force, and if the pipe plug is not pushed, the pipeline joint 12 will be disconnected and leak water. In order to ensure the installation quality of the pipeline and avoid large slippage, a huge buttress 2 is required to be arranged at the tail end of the water supply pipeline 1. When the pipeline end continues to be connected, the buttress 2 needs to be dismantled, the labor and the materials are wasted, the repeated utilization cannot be realized, and the construction difficulty is very high.
To solve the problems of labor and material waste, and high construction difficulty of the conventional pipeline pressure test, referring to fig. 2 and 4, the embodiment provides a wing-ring short pipe 3, wherein a wing ring 31 is arranged on the outer surface of the wing-ring short pipe 3 along the circumferential direction, and the wing ring 31 is used for anchoring a ballast 4. The ballast 4 is a concrete structure provided on the wing ring 31 and covering the wing ring 31 and the winged-ring stub 3.
In concrete pipeline construction process, when pipeline construction to terminal, install winged ring nozzle stub 3, set up anchor block 4 on winged ring 31, can increase pipe-line system's weight in order to support the thrust of water-resistant, guarantee that the pipeline is firm not to shift, it needs to set up huge buttress at the pipeline end when the pipeline pressure testing to have changed prior art, need demolish the condition of buttress when continuing to take over, thereby save the operating expenses greatly, reduce the time of stopping water, the economic benefits and the social of water supply enterprise have been improved.
Referring to fig. 3, as a preferred embodiment, the wing ring 31 includes reinforcing bars 311 and reinforcing hoops 312. The plurality of reinforcing bars 311 are uniformly arranged on the outer surface of the wing-ring short pipe 3 along the circumferential direction of the wing-ring short pipe 3, and are distributed in a divergent manner outwards with the axis of the wing-ring short pipe 3 as the center. The reinforcing band 312 is disposed on the reinforcing bars 311 in the width direction of the reinforcing bars 311 and connects each reinforcing bar 311 to form a ring structure. The reinforcing hoops 312 are arranged on the reinforcing steel bars 311 to form an annular structure surrounding the winged ring short pipe 3, so that the stability of the reinforcing steel bars 311 is enhanced, and the reinforcing steel bars 311 are prevented from being inclined due to stress when the anchor blocks 4 are poured; meanwhile, the reinforcing steel bars 311 and the reinforcing hoops 312 are arranged, so that a double-support effect can be achieved, and the bearing capacity of the wing ring short pipe 3 is improved.
As a preferred embodiment, referring to fig. 3, a plurality of teeth 3111 are provided on an outer surface of the reinforcing bar 311. By providing the teeth 3111 on the outer surface of the reinforcing bar 311, the gripping force of the reinforcing bar 311 against the ballast 4 can be enhanced, thereby firmly anchoring the ballast 4 to the winged-ring stub 3. The teeth 3111 may be oriented perpendicular to the longitudinal direction of the reinforcing bars 311, may be inclined outward away from the short pipe 3 with wing ring, or may be inclined inward toward the short pipe 3 with wing ring. Preferably, as shown in fig. 3, the teeth 3111 are inclined inward toward the winged-ring pipe spool 3, so as to further enhance the holding force of the reinforcing bars 311 on the ballast 4 and prevent the ballast 4 from falling off.
As a preferred embodiment, referring to fig. 4, a removable blind plate 32 is provided at one end of the winged short pipe 3. In the specific pipeline construction process, when the pipeline is constructed to the tail end, the wing ring short pipe 3 and the blind plate 32 are arranged, and the anchor blocks 4 are poured on the wing rings 31; when the pipe is required to be continuously connected at the tail end of the pipeline, the pipeline can be continuously arranged only by closing the valve on the pipeline and disassembling the blind plate 32, so that the aim that the valve is not used as a pressure test baffle is fulfilled.
Specifically, in the present invention, as shown in fig. 2, the winged ring short tube 3 is a disk-plug winged ring short tube, one end of which is a flange interface 33 (for connecting with the blind plate 32), and the other end of which is a socket 34 (for plugging with a socket at the end of a pipeline); the blind plate 32 is a flange blind plate, and is connected with the wing ring short pipe 3 through a flange. Preferably, the winged-ring short pipe 3 and the blind plate 32 are made of nodular cast iron. Specifically, in the actual pipeline construction process, when installing the wing ring short pipe 3, a pit needs to be dug in advance at the joint of the wing ring 31 and the flange, so that the friction between the wing ring short pipe 3 and the soil is minimized, and the construction is facilitated.
In the prior art, during pressure test of a pipeline, sectional type pressure test is usually carried out, and one section of pressure test is installed for one section. However, according to the construction and acceptance criteria, the pressure test length of the municipal water supply pipeline cannot exceed 1km, the time for the road construction department to arrange the municipal water supply pipeline for construction is greatly shortened, continuous construction is often required, and the pipeline laying is not allowed after the municipal water supply pipeline is subjected to sectional pressure test. Some construction units can perform segmented pressure testing in order to finish pipeline laying within a specified construction period, so that the valve is usually closed and used as a baffle for pressure testing, and unidirectional stress damage of the valve is caused. After the pipeline is put into normal water delivery, the valve is not closed tightly to cause water leakage, and the subsequent use quality is influenced.
In order to solve the problems that the existing pipeline has limited pressure testing length and large continuous construction difficulty, and the quality of a valve is easily damaged after the valve is used as a baffle for pressure testing, so that the later use is influenced, please refer to fig. 5, the embodiment provides a pipeline pressure testing device, which comprises a wing-ring-provided short pipe 3, a disc-inserted blind pipe 5/disc-inserted short pipe 6 and a sleeve 7 (which can be detachable in a K shape) which are sequentially connected end to end; the wing ring 31 of the wing ring short pipe 3 is provided with a ballast 4. Wherein, one of the disc plugging blind pipe 5 and the disc plugging short pipe 6 is optionally arranged. Preferably, the winged ring short pipe 3, the disc inserting blind pipe 5/the disc inserting short pipe 6 and the sleeve 7 are detachably connected.
Specifically, in the present invention, the winged ring pipe spool 3 is a disk-plug winged ring pipe spool, one end of which is a socket 34 (for plugging with a socket at the end of a pipeline), and the other end of which is a flange connector 33 (for connecting with the disk-plug blind pipe 5/disk-plug pipe spool 6). The disc inserting blind pipe 5 is a disc inserting type disc inserting blind pipe, one end of the disc inserting blind pipe is a flange interface (used for being connected with the wing ring short pipe 3), and the other end of the disc inserting blind pipe is a socket (used for being mutually inserted with a socket at the tail end of another pipeline or being connected with the sleeve 7). The disk plug short pipe 6 is a disk plug short pipe, one end of the disk plug short pipe is a flange interface (used for being connected with the wing ring short pipe 3), and the other end of the disk plug short pipe is a socket (used for being mutually plugged with a socket at the tail end of another pipeline or being connected with the sleeve 7). The disc insertion blind pipe 5 and the disc insertion short pipe 6 are different in that the insertion opening of the disc insertion blind pipe 5 is in a blocking state, and the disc insertion short pipe 6 is a small pipe section with two ends communicated with each other.
Referring to fig. 5, the present embodiment further provides a pipeline pressure testing system, which includes a pipeline 8 and a pipeline pressure testing device connected to each other. The duct 8 includes a first duct 81 and a second duct 82. The winged ring short pipe 3 of the pipeline pressure test device is connected with the first pipeline 81, and the sleeve 7 of the pipeline pressure test device is connected with the second pipeline 82. Preferably, a valve (not shown) is provided at one end of the first pipe 81 connected to the winged short pipe 3.
When in pipeline engineering design (or construction organization design), factors such as a pressure test place, pipe groove geology, pipeline length and the like are comprehensively considered, and a pressure test pipe section is pre-divided. During pipeline construction, a pipeline pressure testing device is arranged at a dividing point (between a first pipeline 81 and a second pipeline 82) of a pressure testing pipe section, namely, a wing-ring short pipe 3, a disc insertion blind pipe 5 and a sleeve 7 are buried in sequence and are connected with each other; the rest parts are still laid with pipelines according to the design drawing, and continuous construction can be carried out without the limitation of the pressure test length. Then, according to the construction site conditions, a pressure test ballast is poured on the wing ring 31, so that the whole pipeline pressure test system is formed. Through setting up the dish blind pipe 5 of inserting, can divide into a plurality of pressure testing pipe section with the pipeline, each pressure testing pipe section is separated stifled totally, each other does not influence. When the pipeline is tested, the dry pipe valve (not shown) is opened to participate in the pressure test, so that the valve is not used as a pressure test baffle. When the pressure test of the pipe sections is finished and normal water delivery operation is required, the valve of the trunk pipe is closed, the sleeve 7 is loosened, the disc-inserted blind pipe 5 is taken out, the disc-inserted short pipe 6 is replaced, the sleeve 7 is locked, then the valve of the trunk pipe is opened, the pipe sections can be communicated with each other, and the water delivery can be normally carried out through the pipeline. In addition, the replaced disk blind insertion pipe 5 can be recycled.
Further, in actual pipeline engineering, road construction departments often require the pipeline to be completed once, and secondary excavation is not allowed, so that the blind pipe 5 can be difficult to replace after pressure testing is completed. At the moment, a pressure test well can be built at the positions of the disc inserting blind pipes 5 and the sleeve 7 in advance, and construction conditions are created for replacing the disc inserting blind pipes 5 at a later date. The pressure well is rectangular, and the size of the pressure well can be determined according to the pipe diameter, which is not described herein.
It should be noted that the standard parts used in the present invention can be purchased from the market, and can be customized according to the description of the specification and the drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, flange, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional type in the prior art, the control mode in the pressure test process is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, and the present invention belongs to the common knowledge in the field, and is mainly used for protecting the mechanical structure and device, so the control mode and circuit connection in the pressure test process are not explained in detail.
The invention provides a pressure test construction method for a pipeline, which comprises the following steps: a first pipeline is laid in front of a position of a ballast of a pressure test pipe section, a socket is arranged at a position, close to the position of the ballast, of the first pipeline, the distance between the inner bottom of the socket and the position of the ballast is equal to the distance between a socket of a wing-ring short pipe and a wing ring, and the wing-ring short pipe is the wing-ring short pipe in any one embodiment of the invention; inserting the plug of the wing-ring-provided short pipe into a socket of a first pipeline, supporting a flange connector of the wing-ring-provided short pipe from the ground by using a support piece, enabling the wing-ring-provided short pipe and the flange to be positioned on the same straight line, and pouring a block of concrete at the position of the block, so that the block supports the wing ring; mounting a disc inserting blind pipe on a flange interface of the wing ring short pipe, wherein one end of the disc inserting blind pipe is the flange interface, the other end of the disc inserting blind pipe is closed, and the flange interface of the disc inserting blind pipe is butted with the flange interface of the wing ring short pipe; a detachable sleeve is arranged at the closed end of the disc insertion blind pipe, and one end of the sleeve, far away from the disc insertion blind pipe, is connected with a second pipeline behind the pressure test pipe section; carrying out pipeline pressure test on a front pipeline, after the pressure test is finished, disassembling the sleeve, disassembling the wing-ring short pipe, and installing a disc short pipe on a flange interface of the wing-ring short pipe, wherein one end of the disc short pipe is the flange interface, the other end of the disc short pipe is a socket, the flange interface of the disc short pipe is in butt joint with the flange interface of the wing-ring short pipe, and the length and the diameter of the disc short pipe are the same as those of the wing-ring short pipe; and the sleeve is arranged on the coiled short plug pipe and the second pipeline, one end of the sleeve is connected with the socket of the coiled short plug pipe, and the other end of the sleeve is connected with the second pipeline of the pressure test pipe section.
Wherein the support piece can be support frame, jack or bracing piece, as long as can realize the short-term support can, further, still include the step: and after the anchor blocks are solidified to reach the preset strength (if the solidification time is longer than the preset time), the supporting pieces are dismantled. So that the support can be reused. Preferably, the pressure test well can be built in the whole section of the pressure test pipe section for pressure test and replacement.
In all the above embodiments, in order to improve the flange interface connection strength, the outer surface of the flange interface is a connection circular buckle plate, a plurality of through holes for bolt fixing are arranged in the middle of the connection circular buckle plate, the flange interface is connected with two flange interfaces through bolts, a protection pad is arranged inside the flange interface and surrounds the flange interface, the protection pad and the protection pad are in contact with each other when the two flange interfaces are in butt joint, and the protection pad can be made of rubber.
It should also be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present patent.
Claims (10)
1. The wing-ring short pipe is characterized in that a wing ring is arranged on the outer surface of the wing-ring short pipe along the circumferential direction and used for anchoring a ballast, one end of the wing-ring short pipe is a socket, and the other end of the wing-ring short pipe is a flange interface;
the anchor blocks are arranged on the wing rings and used for coating the wing rings and the concrete structure with the wing ring short pipes.
2. The winged loop spool of claim 1, wherein the wing loop includes reinforcing steel and a reinforcing hoop;
the reinforcing steel bars are uniformly arranged on the outer surface of the wing-ring short pipe along the circumferential direction of the wing-ring short pipe and are distributed outwards in a divergent manner by taking the axis of the wing-ring short pipe as the center;
the reinforcing hoops are arranged on the reinforcing steel bars along the width direction of the reinforcing steel bars and connected with each reinforcing steel bar to form an annular structure.
3. The winged loop spool of claim 1 wherein one end of the winged loop spool is provided with a removable blind.
4. A pipeline pressure testing device, which is characterized by comprising the winged ring short pipe, the disc-inserted blind pipe/disc-inserted short pipe and the sleeve pipe which are connected end to end in sequence according to any one of claims 1 to 3;
the wing ring of the wing ring short pipe is provided with a ballast;
the disc plugging blind pipe and the disc plugging short pipe are optionally arranged in one.
5. The pipeline pressure testing device according to claim 4, wherein the winged ring short pipe, the disc-inserted blind pipe/disc-inserted short pipe and the sleeve are detachably connected.
6. A pipeline pressure testing system comprising interconnected pipelines and the pipeline pressure testing device of claim 4 or 5.
7. The pipe pressure testing system of claim 6, wherein the pipe comprises a first pipe and a second pipe;
the wing-ring-containing short pipe of the pipeline pressure testing device is connected with the first pipeline, and the sleeve of the pipeline pressure testing device is connected with the second pipeline.
8. The pipeline pressure testing system of claim 7, wherein a valve is disposed at the end of the first pipeline connected to the winged short pipe.
9. A pipeline pressure test construction method is characterized by comprising the following steps:
laying a first pipeline in front of a pier position of a pressure test pipe section, wherein a socket is arranged at the position, close to the pier, of the first pipeline, the distance between the inner bottom of the socket and the pier position is equal to the distance between a socket of a wing-ring short pipe and a wing ring, and the wing-ring short pipe is the wing-ring short pipe in any one of claims 1 to 3;
inserting the plug of the wing-ring-provided short pipe into a socket of a first pipeline, supporting a flange connector of the wing-ring-provided short pipe from the ground by using a support piece, enabling the wing-ring-provided short pipe and the flange to be positioned on the same straight line, and pouring a block of concrete at the position of the block, so that the block supports the wing ring;
mounting a disc inserting blind pipe on a flange interface of the wing ring short pipe, wherein one end of the disc inserting blind pipe is the flange interface, the other end of the disc inserting blind pipe is closed, and the flange interface of the disc inserting blind pipe is butted with the flange interface of the wing ring short pipe;
a detachable sleeve is arranged at the closed end of the disc insertion blind pipe, and one end of the sleeve, far away from the disc insertion blind pipe, is connected with a second pipeline behind the pressure test pipe section;
carrying out pipeline pressure test on a front pipeline, after the pressure test is finished, disassembling the sleeve, disassembling the wing-ring short pipe, and installing a disc short pipe on a flange interface of the wing-ring short pipe, wherein one end of the disc short pipe is the flange interface, the other end of the disc short pipe is a socket, the flange interface of the disc short pipe is in butt joint with the flange interface of the wing-ring short pipe, and the length and the diameter of the disc short pipe are the same as those of the wing-ring short pipe;
and the sleeve is arranged on the coiled short plug pipe and the second pipeline, one end of the sleeve is connected with the socket of the coiled short plug pipe, and the other end of the sleeve is connected with the second pipeline of the pressure test pipe section.
10. The pipeline pressure test construction method according to claim 9, further comprising the steps of: and after the tamping pier is solidified and reaches the preset strength, the supporting piece is detached.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591770.8A CN113324839A (en) | 2021-05-28 | 2021-05-28 | Pressure test method, device and system for short pipe and pipeline with wing ring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110591770.8A CN113324839A (en) | 2021-05-28 | 2021-05-28 | Pressure test method, device and system for short pipe and pipeline with wing ring |
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| CN113324839A true CN113324839A (en) | 2021-08-31 |
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