Water pressure test partition device for water delivery pipeline construction
By designing a pressure test isolation device and using a partition steel plate to separate the test pipeline, the construction period and water consumption can be shortened without removing the test pipeline. This solves the problems of high construction cost and long construction period in the existing technology and achieves a highly efficient pressure test effect.
Patent Information
- Application Number
- CN202520423326.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing pressure test isolation technology requires waiting for the concrete strength to reach the design requirements, and the test pipe cannot be retained, resulting in high construction costs, long construction period, and inability to conduct pressure tests as a whole.
Design a pressure test isolation device, including a test pipe, a main pipe, a flange, inlet and outlet steel pipes, a sealing top cover, a connecting steel pipe and a partition steel plate, which are connected by the flange to form a whole. The partition steel plate divides the pressure test section inside the test pipe, allowing double-sided testing while retaining the pipeline, thus reducing water consumption.
This allows for shorter construction time, reduced water consumption for pressure testing, and lower construction costs without dismantling the test pipeline, and enables simultaneous pressure testing on both sides.
Smart Images
Figure CN223635947U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water pipeline construction technical field especially relates to a water pipeline construction is with water pressure test partition device. BACKGROUND
[0002] In the construction of water pipeline pressure test of the length is bigger, according to the water pressure test of pipe section length of pressure pipeline of Water Supply and Sewerage Pipeline Engineering Construction and Acceptance Specification (GB 50268-2008) is not suitable greater than 1.0km, and the test cannot be carried out as a whole. Need to carry out water pressure test partition, but the existing water pressure test partition technology is: to the water pressure test port pours concrete back wall and installs blind baffle and jack and carries out the pressure, and need to backfill soil of concrete back wall and compacts.
[0003] The scheme needs to wait for the concrete strength to reach the design requirement, and the test pipeline cannot be reserved, and the water source of the pressure completion pipe section cannot be directly connected into the next section pressure pipe section, the overall construction cost is high, the construction period is long, needs to invest a lot of pressure equipment and material, and the use effect is not ideal. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of water pipeline construction water pressure test partition devices, which can not only meet water pressure test, but also can be reserved as a part of pipeline, without removing shorten construction period, and overall can bilateral test, reduce the water quantity of water pressure test.
[0005] To achieve the above object, the technical scheme of the utility model is as follows: a kind of water pipeline construction water pressure test partition device, including test pipeline and the main pipeline of test pipeline two ends, the test pipeline is connected between main pipeline by flange plate, two inlet and outlet steel pipes are equipped on the test pipeline, the port of inlet and outlet steel pipe is equipped with sealing top cover, communication steel pipe is equipped between two sealing top covers, valve is equipped at the two ends of communication steel pipe, and the partition steel plate is arranged in test pipeline between two inlet and outlet steel pipes.
[0006] Preferably, the two sides of the partition steel plate are connected by the communication steel pipe.
[0007] Preferably, the outer diameter of the partition steel plate is consistent with the inner diameter of the test pipeline, the two sides of the partition steel plate are both provided with staggered grid rib plates, and the circumference of the partition steel plate and the end of the grid rib plate are both welded with the inner wall of the test pipeline.
[0008] Preferably, one side of the partition steel plate is also provided with two hooks, two detachable levels are arranged between the two hooks, and the two levels are arranged vertically.
[0009] Preferably, the test pipeline is further provided with a supporting cylinder, and the supporting cylinder is provided with a supporting disc at each end, and the supporting disc has an outer diameter smaller than the inner diameter of the test pipeline.
[0010] The utility model discloses a water pipeline construction water pressure test cut -off device, including test pipeline and the main pipeline of test pipeline both ends, be connected through flange disc between test pipeline and main pipeline, be equipped with two inlet and outlet steel pipes on test pipeline, the port of inlet and outlet steel pipe is equipped with sealing top cap, be equipped with the communicating steel pipe between two sealing top caps, the both ends of communicating steel pipe are equipped with valve, be equipped with the cut -off steel sheet between two inlet and outlet steel pipes in test pipeline, cut -off steel sheet both sides are communicated through communicating steel pipe, compared with prior art, this water pipeline construction water pressure test cut -off device has the beneficial effect that test pipeline not only satisfies water pressure test, can also keep as a part of pipeline, need not remove and shorten construction period, and the whole can bilateral test, reduces the water amount of water pressure test. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is structure diagram of the utility model discloses a water pipeline construction water pressure test cut -off device Figure 1 .
[0012] Figure 2 It is structure diagram of the utility model discloses a water pipeline construction water pressure test cut -off device Figure 2 .
[0013] Figure 3 It is internal structure diagram of the utility model discloses a water pipeline construction water pressure test cut -off device.
[0014] Figure 4 It is the cooperation of cut -off steel sheet and supporting cylinder in the utility model discloses a water pipeline construction water pressure test cut -off device Figure 1 .
[0015] Figure 5 It is the cooperation of cut -off steel sheet and supporting cylinder in the utility model discloses a water pipeline construction water pressure test cut -off device Figure 2 .
[0016] Figure 6 It is the utility model Figure 4 Enlarged structure diagram of place A.
[0017] In the drawing: 1, test pipeline, 2, main pipeline, 3, flange disc, 4, inlet and outlet steel pipe, 5, sealing top cap, 6, valve, 7, communicating steel pipe, 8, cut -off steel sheet, 81, grid rib, 82, lifting hook, 83, level, 9, supporting cylinder, 91, supporting disc. DETAILED DESCRIPTION
[0018] The utility model will be further explained in detail in combination with the drawings. The drawings are simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the structure related to the utility model.
[0019] Please refer to Figures 1-6 A water pipeline construction is with water pressure test cut-off device, including test pipeline 1 and test pipeline 1 both ends main pipeline 2, test pipeline 1 with main pipeline 2 between through flange 3 connection, after connection main pipeline 2 with test pipeline 1 form whole, test pipeline 1 on be equipped with two inlet and outlet steel pipe 4, inlet and outlet steel pipe 4's port be equipped with sealing top cap 5, two sealing top cap 5 between be equipped with communication steel pipe 7, communication steel pipe 7 both ends be equipped with valve 6, two inlet and outlet steel pipe 4 between in test pipeline 1 be equipped with cut-off steel plate 8, the cut-off steel plate 8 can be separated, after separation, can be in two sides respectively carry out water pressure test, wherein inlet and outlet steel pipe 4 is used for staff to enter test pipeline 1, so as to cut-off steel plate 8 carries out welding or cutting.
[0020] In use, first, cut-off steel plate 8 is welded in test pipeline 1 outside the site, weld first cut-off steel plate 8 hoist and make it enter test pipeline 1, then staff from inlet and outlet steel pipe 4 enter test pipeline 1, thereby to the circumference of cut-off steel plate 8 carries out double-sided ring welding, to ensure the strength of cut-off steel plate, after welding, staff leave test pipeline 1, then the whole is hoisted and is between two main pipelines 2, make the whole be connected as a whole and carry out water pressure test.
[0021] Before water pressure test, the both ends of communication steel pipe 7 do not communicate with two inlet and outlet steel pipes 4, that is, communication steel pipe 7 is welded and installed later, the purpose is to facilitate the exhaust in test pipeline 1 when injecting water;
[0022] When testing, high-pressure water is injected into the left main pipeline 2, after injection, the internal air is extruded and discharged from the communication steel pipe interface, after discharge, the communication steel pipe 7 is welded and the valve 6 is closed, at this time, the high-pressure water enters the test pipeline 1 and is blocked by the cut-off steel plate 8, with the increase of water volume and pressure, whether the water pressure test data is met is judged by observing the water pressure gauge (not shown in the figure); when the left water pressure test is completed, the valve 6 is opened, since the left main pipeline 2 continuously injects high-pressure water, the water on the left side of the cut-off steel plate 8 will enter the right side through the inlet and outlet steel pipe 4 and the communication steel pipe 7, thereby facilitating the experiment on the right side of the test pipeline 1;
[0023] Since the left side pressure water enters the right side through the communication steel pipe 7, the water injection amount of the right side water pressure test can be reduced, after part of the water flow flows into the right side, the right main pipeline 2 also injects water into the test pipeline 1, when the right main pipeline 2 injects water, the valve is opened to exhaust to the left, after exhaust, the valve is closed, thereby the right side of the cut-off steel plate 8 is subjected to water pressure test.
[0024] After the water pressure test on both sides is completed, the partition steel plate 8 is cut to make the whole communicate to form a pipeline water.
[0025] The outer diameter of the partition steel plate 8 is consistent with the inner diameter of the test pipeline 1, both sides of the partition steel plate 8 are provided with staggered grid rib plates 81, and the circumference of the partition steel plate 8 and the end of the grid rib plate 81 are welded with the inner wall of the test pipeline 1, thereby increasing the welding area and improving the overall strength.
[0026] In the embodiment, one side of the partition steel plate 8 is also provided with two hooks 82 for hoisting the partition steel plate 8 outside the site, two detachable levels 83 are arranged between the two hooks 82, and the two levels 83 are arranged vertically to ensure that the partition steel plate 8 is arranged horizontally during welding, avoiding its inclination in the test pipeline.
[0027] As a preferred scheme, the test pipeline 1 is also provided with a support cylinder 9, both ends of the support cylinder 9 are provided with support discs 91, and the outer diameter of the support disc 91 is smaller than the inner diameter of the test pipeline 1; when the partition steel plate 8 is welded outside the site, the support cylinder 9 is first placed in the test pipeline 1, and then the hoisted partition steel plate 8 is placed on the support disc 91, which can ensure the stability of the partition steel plate 8 during welding and improve the welding precision, and has strong practicability.
[0028] After the water pressure test is completed, the test pipeline 1 is always connected between the two main pipelines 2, without the need to be removed, so that the test pipeline 1 becomes a part of the pipeline, shortens the construction period, and reduces the construction cost.
[0029] Obviously, the above embodiment is only an example for clear illustration, and is not a limitation on the implementation. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the implementation is not required and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. A pressure test isolation device for water pipeline construction, characterized in that, The utility model provides a test pipeline and the main pipeline of test pipeline both ends, test pipeline and main pipeline between through flange connection, be equipped with two inlet and outlet steel pipes on test pipeline, the port of inlet and outlet steel pipe is equipped with sealed top cap, be equipped with the communication steel pipe between two sealed top caps, be equipped with the valve at the both ends of communication steel pipe, be equipped with the partition steel sheet between two inlet and outlet steel pipes in test pipeline.
2. The cutoff device for water pressure test in water pipeline construction according to claim 1, characterized by The both sides of the partition steel sheet are communicated through the communication steel pipe.
3. The water pressure test cutoff device for water pipeline construction according to claim 1 or 2, characterized by The outer diameter of the partition steel sheet is consistent with the inner diameter of the test pipeline, both sides of the partition steel sheet are provided with staggered grid rib plates, and the circumference of the partition steel sheet and the end of the grid rib plate are welded with the inner wall of the test pipeline.
4. The cutoff device for water pressure test in water pipeline construction according to claim 3, characterized in that, One side of the partition steel sheet is also provided with two hooks, two detachable levels are arranged between the two hooks, and the two levels are arranged vertically.
5. The water pressure test stopper for water pipeline construction according to Claim 1, wherein The test pipeline is also provided with a support cylinder, and the support cylinder is provided with a support disc at both ends.