Segmented continuous test connecting device for long-distance water delivery pipeline
By using a segmented continuous test connection device in the construction of long-distance water transfer pipelines, the problem of pipeline segmented tests requires sectional irrigation and pressurization, achieving the effect of saving test water and improving test efficiency.
Patent Information
- Application Number
- CN202421256004.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-04
AI Technical Summary
In the construction of long-distance pipeline laying, the pipeline segmentation pressure test is limited by the geographical environment of the operation area, the pipeline segmentation and the water used for the test, and it is difficult to effectively organize.
A segmented continuous test connection device is adopted, which forms a light and fast communication device through a combination of gate valves, flanges and small-pipe pipes, achieving continuous water filling and pressurization between pipe sections.
The device greatly saves the amount of water used for testing and water discharge, reduces environmental pollution and costs, and improves the efficiency of water pressure tests and the practicality of the device.
Smart Images
Figure CN222925128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of long-distance pipeline engineering that requires segmented tests, and particularly relates to a segmented continuous test connection device for a long-distance water conveyance pipeline. Background Technique
[0002] In the construction of long-distance pipeline laying, according to the specification requirements, the test section length of the pipeline pressure test is usually not allowed to exceed 1 km. The segmented pressure test of the pipeline is usually restricted by the geographical environment of the operation area, pipeline segmentation, and test water, making it difficult to effectively organize the pipeline pressure test.
[0003] By adopting this segmented continuous test connection device, during the test process, the test water of the previous section of the pipeline can flow by gravity through this device to the subsequent section of the pipeline and circulate in turn until the tests of all pipe sections are completed, solving the problem that the segmented test of the pipeline requires filling and pressurizing section by section. After each section of the pipeline is filled with water from the previous pipe section through this device, only water replenishment and pressurization are required to meet the test requirements. It saves the test water consumption and drainage volume of the entire pipeline section, reduces costs, and at the same time reduces environmental pollution. Content of the Utility Model
[0004] The purpose of the utility model is to provide a segmented continuous test connection device for a long-distance water conveyance pipeline. By setting and adopting this segmented continuous test connection device, the problem that the segmented test of the pipeline requires filling and pressurizing section by section is solved.
[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: It includes a gate valve A. One end of the gate valve A is fixedly connected to a water inlet pipe, and the other end of the gate valve A is fixedly connected to a water outlet pipe. One end of the water outlet pipe is fixedly connected to an end cover flange A. A pressure gauge A is fixedly connected to the surface of the water outlet pipe. One side of the end cover flange A is threadedly connected to a flat welding flange A through bolts. One side of the flat welding flange A is fixedly connected to a test pipe section. One end of the test pipe section is fixedly connected to a flat welding flange B. One side of the flat welding flange B is threadedly connected to an end cover flange B through threaded bolts. One end of the end cover flange B is fixedly connected to a pipeline assembly.
[0006] Preferably, the pipeline assembly includes a fixed pipe, a 90° elbow, a connecting pipe, a gate valve B, an adjustable short pipe, a gate valve C, an S-shaped short pipe, and a pressure gauge B. One end of the fixed pipe is fixedly connected to a 90° elbow. The top of the 90° elbow is fixedly connected to a connecting pipe. One end of the connecting pipe is fixedly connected to a gate valve B. One end of the gate valve B is fixedly connected to an adjustable short pipe. One end of the adjustable short pipe is fixedly connected to a gate valve C. One end of the gate valve C is fixedly connected to an S-shaped short pipe. A pressure gauge B is fixedly connected to the surface of the S-shaped short pipe.
[0007] Preferably, the surface of the test pipe section is coated with a waterproof coating, and a thin film is attached to the surface of the waterproof coating.
[0008] Preferably, visible glass is embedded in the surfaces of pressure gauge A and pressure gauge B, and a dust-proof film is attached to the surface of the visible glass.
[0009] Preferably, a soft pad is fixedly connected to the bottom of the test pipe section, and a plurality of anti-slip lines are provided on the surface of the soft pad.
[0010] Preferably, the surfaces of gate valve A, gate valve B, and gate valve C are coated with a protective layer, and a rubber sleeve is fixedly connected to the surface of the protective layer.
[0011] The utility model provides a segmented continuous test connection device for a long-distance water conveyance pipeline, which has the following beneficial effects:
[0012] Through the arrangement of pipeline flanges such as adjustable short pipes and end cover flange A, a convenient-to-install and -dismantle flange connection method and small-diameter pipelines are used to form a lightweight and fast communication device; it has the characteristics of simple material selection, flexible assembly, and convenient handling. The detachable short pipes with small diameters can be shortened or lengthened by cutting to meet the test requirements when the spacing between pipe sections is inconsistent. When the spacing is extremely short, the communication effect can be achieved by arranging welded elbows in a cross pattern to avoid cutting large-diameter pipe sections. Small-diameter valves are installed on the communication device to form a water flow channel and close the water flow, enabling two-by-two communication and water filling between pipe sections and closing the water flow during the pressurization process after water filling to meet the working requirements of the pressure test pressurization and pressure stabilization stages, greatly saving test water and the difficulty of replenishing water for the rear pipe sections, effectively improving the pressure test efficiency, saving test costs, and greatly improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained based on the provided drawings.
[0014] Figure 1 It is a schematic structural diagram of the present utility model;
[0015] Figure 2 It is a schematic structural diagram of the test pipeline of the present utility model;
[0016] Figure 3 It is a schematic structural diagram of the pipeline assembly of the present utility model.
[0017] Labels in the figure:
[0018] 1. Gate valve A; 2. Inlet pipe; 3. Outlet pipe; 4. End cover flange A; 5. Pressure gauge A; 6. Slip-on flange A; 7. Test pipe section; 8. Slip-on flange B; 9. End cover flange B; 10. Fixed pipe; 11. 90° elbow; 12. Connecting pipe; 13. Gate valve B; 14. Adjustable short pipe; 15. Gate valve C; 16. S-shaped short pipe; 17. Pressure gauge B. Specific embodiments
[0019] Here, exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] Embodiment 1:
[0022] As Figure 1 , Figure 2 and Figure 3As shown in the figure, this embodiment proposes a segmented continuous test connection device for long-distance water conveyance pipelines, which includes a gate valve A1. One end of the gate valve A1 is fixedly connected to a water inlet pipe 2, and the other end of the gate valve A1 is fixedly connected to a water outlet pipe 3. One end of the water outlet pipe 3 is fixedly connected to an end cover flange A4, and a pressure gauge A5 is fixedly connected to the surface of the water outlet pipe 3. One side of the end cover flange A4 is threadedly connected to a flat welding flange A6 by bolts. One side of the flat welding flange A6 is fixedly connected to a test pipe section 7. One end of the test pipe section 7 is fixedly connected to a flat welding flange B8. One side of the flat welding flange B8 is threadedly connected to an end cover flange B9 by threaded bolts. One end of the end cover flange B9 is fixedly connected to a pipeline assembly; through the settings of pipeline flanges such as adjustable short pipes 7 and end cover flange A4, a convenient-to-install and -dismantle flange connection method and small-diameter pipelines are combined to form a portable and fast communication device; it has the characteristics of simple material selection, flexible assembly, and convenient handling. The detachable short pipes with small diameters can be shortened or lengthened by cutting to meet the test requirements when the distances between pipe sections are inconsistent. When the distance is extremely short, the communication effect can be achieved by arranging welded elbows in a cross pattern to avoid cutting large-diameter pipe sections. Small-diameter valves are installed on the communication device to form a water flow channel and close the water flow, forming a two-by-two connection for water filling between pipe sections and closing the water flow during the pressurization process after water filling to meet the requirements of the water pressure test pressurization and pressure stabilization stages, greatly saving test water and the difficulty of replenishing water for the rear pipe sections, effectively improving the water pressure test efficiency, saving test costs, and greatly improving the practicality of the device.
[0023] As Figure 1 , 3 shown in the figure, the pipeline assembly includes a fixed pipe 10, a 90° elbow 11, a connecting pipe 12, a gate valve B13, an adjustable short pipe 14, a gate valve C15, an S-shaped short pipe 16, and a pressure gauge B17. One end of the fixed pipe 10 is fixedly connected to a 90° elbow 11. The top of the 90° elbow 11 is fixedly connected to a connecting pipe 12. One end of the connecting pipe 12 is fixedly connected to a gate valve B13. One end of the gate valve B13 is fixedly connected to an adjustable short pipe 14. One end of the adjustable short pipe 14 is fixedly connected to a gate valve C15. One end of the gate valve C15 is fixedly connected to an S-shaped short pipe 16. A pressure gauge B17 is fixedly connected to the surface of the S-shaped short pipe 16.
[0024] Example 2:
[0025] The solution in Example 1 will be further introduced below in combination with the specific working method. See the following description for details:
[0026] As Figure 1 , Figure 2 and Figure 3 shown in the figure, a waterproof coating is applied to the surface of the test pipe section 7, and a thin film is pasted on the surface of the waterproof coating, so that the test pipe section 7 is protected and the loss of the device can be reduced.
[0027] As Figure 1 、 Figure 2 and Figure 3 shown, visible glass is embedded on the surfaces of pressure gauge A5 and pressure gauge B17, and a dust-proof film is attached to the surface of the visible glass, enabling the user to observe the pressure conditions of pressure gauge A5 and pressure gauge B17, and preventing dust accumulation from affecting the user's observation vision.
[0028] As Figure 1 、 Figure 2 shown, a soft pad is fixedly connected to the bottom of test pipe section 7, and a number of anti-slip lines are provided on the surface of the soft pad, enabling test pipe section 7 to be away from the ground, reducing damage to the device, increasing the friction on the surface of the device, and preventing test pipe section 7 from slipping off.
[0029] As Figure 1 、 Figure 2 、 Figure 3 shown, protective layers are coated on the surfaces of gate valve A1, gate valve B13, and gate valve C15, and rubber sleeves are fixedly connected to the surfaces of the protective layers, enabling gate valve A1, gate valve B13, and gate valve C15 to be protected, reducing the loss of the device, and extending the service life of the device.
[0030] Example 3:
[0031] The solutions in Example 1 and Example 2 are further introduced below in combination with specific working methods. See the following description for details:
[0032] Specifically, when the continuous test connection device for long-distance water conveyance pipelines is in operation / use: During the segmented test of long-distance pipelines, the butt-welding flanges are respectively installed on the four ports of adjacent pipeline segments. At the positions of the four DN600 end flanges close to the bolt holes, round holes with a diameter of Φ50 are cut for welding DN50 short pipes. Four fixed-length short pipes with a length of 10 cm - 20 cm are cut, and one end of each is welded with a DN50 flange, and the other end is installed on the round holes of the DN600 end flanges to form a fixed flow-through device. Then, four manual gate valves are connected to the short pipe flanges. The length of the detachable short pipe is determined by measuring on-site according to the interval length between the first and second segments of the on-site test pipeline. DN50 butt-welding flanges are welded at both ends of the connecting short pipe respectively. Then, the detachable short pipe is installed on the valves at the end of the first segment and the beginning of the second segment to form a complete connecting device. Finally, a pressure gauge is installed on the fixed-length short pipe to complete the production of the entire connecting device. All gate valves are closed. After the first-segment pipeline is filled with water and pressurized to complete the pressure test, the two gate valves connected to the detachable short pipe are opened. The water in the first-segment pipeline flows through the connecting device to the second-segment pipeline. After the second-segment pipeline is filled with water, the two valves connected to the detachable short pipe are closed. The end flange, connecting short pipe, and valve installed on the first-segment pipeline are disassembled and installed on the third-segment pipeline together. The detachable short pipe is installed between the second-segment pipeline and the third-segment pipeline to form a new connecting device. This process is repeated in sequence until the water pressure test of all pipeline segments is completed.
[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A connection device for segmented continuous testing of a long-distance water pipeline, comprising a gate valve A (1), characterized in that: One end of the gate valve A (1) is fixedly connected to a water inlet pipe (2), the other end of the gate valve A (1) is fixedly connected to a water outlet pipe (3), one end of the water outlet pipe (3) is fixedly connected to an end cover flange A (4), the surface of the water outlet pipe (3) is fixedly connected to a pressure gauge A (5), one side of the end cover flange A (4) is threadedly connected to a flat welding flange A (6) via bolts, one side of the flat welding flange A (6) is fixedly connected to a test pipe section (7), one end of the test pipe section (7) is fixedly connected to a flat welding flange B (8), one side of the flat welding flange B (8) is threadedly connected to an end cover flange B (9) via a threaded bolt, and one end of the end cover flange B (9) is fixedly connected to a pipeline assembly.
2. A connection device for segmented continuous testing of long-distance water pipelines according to claim 1, characterized in that: The pipeline assembly comprises a fixed pipe (10), a 90° elbow (11), a connecting pipe (12), a gate valve B (13), an adjustable short pipe (14), a gate valve C (15), an S-shaped short pipe (16) and a pressure gauge B (17); one end of the fixed pipe (10) is fixedly connected to the 90° elbow (11); the top of the 90° elbow (11) is fixedly connected to the connecting pipe (12); one end of the connecting pipe (12) is fixedly connected to the gate valve B (13); one end of the gate valve B (13) is fixedly connected to the adjustable short pipe (14); one end of the adjustable short pipe (14) is fixedly connected to the gate valve C (15); one end of the gate valve C (15) is fixedly connected to the S-shaped short pipe (16); and the surface of the S-shaped short pipe (16) is fixedly connected to the pressure gauge B (17).
3. A connection device for segmented continuous testing of long-distance water pipelines according to claim 1, characterized in that: The surface of the test pipe section (7) is coated with a waterproof coating, and a film is attached to the surface of the waterproof coating.
4. A connection device for segmented continuous testing of long-distance water pipelines according to claim 2, characterized in that: The surfaces of the pressure gauge A (5) and the pressure gauge B (17) are embedded with sight glasses, and the surfaces of the sight glasses are affixed with dustproof films.
5. The device for continuous segmented testing of long-distance water pipelines according to claim 1 is characterized in that: The bottom of the test pipe section (7) is fixedly connected with a soft pad, and the surface of the soft pad is provided with a plurality of anti-slip grooves.
6. A connection device for segmented continuous testing of long-distance water pipelines according to claim 2, characterized in that: The surfaces of the gate valve A (1), gate valve B (13) and gate valve C (15) are coated with a protective layer, and the surface of the protective layer is fixedly connected with a rubber sleeve.