Efficient multifunctional hydraulic pipeline pressure test device

By adopting a modular design and an oil recovery structure, the problems of poor adaptability and resource waste of hydraulic pipeline pressure testing devices are solved, realizing efficient pressure testing and environmentally friendly resource recycling, and improving pressure testing efficiency and safety.

CN223739787UActive Publication Date: 2025-12-30LANZHOU LS PETROLEUM EQUIP ENG CO LTD
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Patent Information

Application Number
CN202520492531.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-12-30
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Existing hydraulic pipeline pressure testing devices have poor adaptability and low efficiency, require frequent replacement of tooling joints, resulting in long testing cycles and easy waste of resources. Furthermore, they lack hydraulic oil recovery design, which can easily cause environmental pollution.

Method used

It adopts modular valve block assembly, multi-specification conversion joint group and oil recovery structure to achieve efficient pressure testing and resource recycling. Through modular design, it can quickly adapt to pipelines with different pipe diameters, materials and pressure levels, and integrates hydraulic oil recovery system. It uses pressurized air source to purge residual oil in pipeline to oil tank, and uses oil collection box to collect leaked oil.

Benefits of technology

It enables efficient pressure testing that can quickly adapt to different pipe specifications, reduces tooling change time, achieves resource recycling, reduces environmental pollution risks, and improves operational safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223739787U_ABST
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Abstract

The utility model discloses a high-efficiency multifunctional hydraulic pipeline pressure test device which comprises a hydraulic station, and an oil outlet P01, an oil outlet P02 and an oil return port T are respectively arranged on the hydraulic station. A box body valve block assembly is arranged on the rear side of the hydraulic station and comprises a valve block assembly and a box body frame assembly; through the modularized valve block assembly, the multi-specification conversion joint group and the oil liquid recovery structure, efficient pressure test and resource recycling are realized, the pressure test efficiency of the hydraulic pipeline is remarkably improved, resource waste is reduced, and the hydraulic pipeline pressure test device is suitable for the field of petroleum equipment manufacturing and maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipeline testing technology, specifically a high-efficiency, multi-functional hydraulic pipeline pressure testing device. Background Technology

[0002] Existing hydraulic pipeline pressure testing devices suffer from poor adaptability and low efficiency. In particular, for pipelines of different diameters, materials, and pressure ratings, frequent changes of tooling joints are required, resulting in long testing cycles and resource waste. Furthermore, traditional devices lack hydraulic oil recovery designs, which can easily lead to environmental pollution. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency, multi-functional hydraulic pipeline pressure testing device. Through modular valve block assemblies, multi-specification conversion joint groups, and oil recovery structures, it achieves efficient pressure testing and resource recycling, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency, multi-functional hydraulic pipeline pressure testing device, including a hydraulic station, wherein the hydraulic station is respectively provided with an oil outlet P01 port, an oil outlet P02 port and an oil return port T port; a box valve block assembly is provided on the rear side of the hydraulic station, the box valve block assembly including a valve block assembly and a box frame assembly;

[0005] The valve block assembly includes a first valve block, a second valve block, a conversion connector group, and a high-pressure ball valve. The first valve block is a small-diameter, low-flow valve, and has an oil inlet P1, an oil return port T1, a test pressure port A1, and a test pressure port B1. The second valve block is a large-diameter, high-flow valve, and has an oil inlet P2, an oil return port T2, a test pressure port A2, and a test pressure port B2. The conversion connector group 12 includes a metric thread conversion connector, an American standard thread conversion connector, and a flange conversion connector. The high-pressure ball valve is located at the drain port of the first and second valve blocks.

[0006] The P01 and T ports of the hydraulic station are connected to the P1 and T1 ports of the first valve block via a first tooling hose; the P02 and T ports of the hydraulic station are connected to the P2 and T2 ports of the second valve block via a second tooling hose.

[0007] The test pressure oil ports A1 and B1 of the first valve block or the test pressure oil ports A2 and B2 of the second valve block are respectively adapted to the third tooling hose and the fourth tooling hose through the conversion connector group 12; the third tooling hose and the fourth tooling hose are respectively connected to the hydraulic steel pipe and the hydraulic hose.

[0008] A pressurized air source is provided between the first tooling hose and the second tooling hose. The pressurized air source is connected after disconnecting the hydraulic station from the first tooling hose or the second tooling hose, and is used to purge the hydraulic oil in the pipeline to the oil tank.

[0009] The housing frame assembly includes an oil collection box, an oil drain plug, a side door, and an upper cover, which are used to recover leaked hydraulic oil and improve operational safety.

[0010] Preferably, the oil inlets P1 and P2 and the test pressure oil inlets A1 and A2 of the valve block assembly are internally interconnected, and the oil return ports T1 and T2 and the test pressure oil inlets B1 and B2 are internally interconnected.

[0011] Preferably, the housing frame assembly is further provided with a connector group storage box for storing the matching connectors of the conversion connector group, and is closed by the storage box door panel.

[0012] Preferably, plugs are provided at the test pressure ports of the first valve block and the second valve block to seal unused ports.

[0013] Preferably, the side of the oil receiving box is provided with an oil drain pipe, which is sealed by an oil drain plug for recovering leaked hydraulic oil.

[0014] Preferably, the top of the box frame assembly is provided with lifting lugs for frame hoisting operations.

[0015] The working process of this utility model is as follows:

[0016] The hydraulic station is connected to the first valve block and the second valve block via a first tooling hose and a second tooling hose, respectively, and both are bolted to the top of the oil receiving box. The test pressure ports of the first and second valve blocks are adapted to different specifications of hydraulic hoses or hydraulic steel pipes via conversion couplings. After the pressure test is completed, the hydraulic station is disconnected and a pressurized air source is connected. The oil in the pipeline is then purged to the oil tank through a high-pressure ball valve.

[0017] The oil collection box of the enclosure frame assembly can collect leaked oil, and the drain plug facilitates centralized recycling; the side door and top cover of the enclosure are closed during testing to prevent high-pressure oil splashing and ensure operational safety.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) This utility model, through its modularly designed valve block assembly (including small-diameter valve block and large-diameter valve block) and multi-specification conversion joint group (metric, American, flange joint), can quickly adapt to hydraulic pipelines of different pipe diameters, materials and pressure levels, reduce tooling replacement time, and realize batch efficient pressure testing and flushing of multi-specification pipelines.

[0020] (2) The present invention integrates a hydraulic oil recovery system, which uses a pressurized air source to purge the residual oil in the pipeline to the oil tank, and collects the leaked oil with the oil collection box, thereby realizing the recycling of oil and reducing resource consumption; at the same time, it effectively avoids the environmental pollution caused by oil leakage during the traditional pressure test process.

[0021] (3) The valve block assembly of the box in this utility model is equipped with a protective structure (closed side door and upper cover) and an oil receiving box, which can block oil splashing during high pressure test and prevent accidental spillage; the oil drain plug and centralized recycling design further reduce the operational risk and ensure the safety of personnel and equipment. Attached Figure Description

[0022] Figure 1 This is a block diagram illustrating the working principle of this device;

[0023] Figure 2 This is a structural schematic diagram of the valve block assembly.

[0024] The components include: 1. Hydraulic station; 2. First tooling hose; 3. First valve block; 4. Hydraulic hose; 5. Third tooling hose; 6. Hydraulic steel pipe; 7. Oil drum; 8. Fourth tooling hose; 9. High-pressure ball valve; 10. Second valve block; 11. Plug; 12. Converter assembly; 13. Box valve block assembly; 14. Second tooling hose; 15. Pressurized air source; 13-1. Box frame assembly; 13-2. Drain plug; 13-3. Oil collection box; 13-4. Box side door; 13-5. Lifting lug; 13-6. Top cover plate; 13-7. Valve block assembly; 13-8. Connector assembly storage box; 13-9. Storage box door panel. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] like Figure 1-2 The high-efficiency multi-functional hydraulic pipeline pressure testing device shown includes a hydraulic station 1, which is provided with an oil outlet P01 port, an oil outlet P02 port and an oil return port T port respectively; a box valve block assembly 13 is provided on the rear side of the hydraulic station 1, which includes a valve block assembly 13-7 and a box frame assembly 13-1.

[0027] Valve block assembly 13-7 includes a first valve block 3, a second valve block 10, a conversion joint assembly 12, and a high-pressure ball valve 9. The first valve block 3 is a small-diameter, small-flow valve, with an inlet port P1, a return port T1, a test pressure port A1, and a test pressure port B1. The second valve block 10 is a large-diameter, large-flow valve, with an inlet port P2, a return port T2, a test pressure port A2, and a test pressure port B2. The conversion joint assembly 12 includes a metric thread conversion joint, an American thread conversion joint, and a flange conversion joint. The high-pressure ball valve 9 is located at the drain ports of the first valve block 3 and the second valve block 10. The P01 and T ports of the hydraulic station 1 are connected to the P1 and T1 ports of the first valve block 3 via a first tooling hose 2. The P02 and T ports of the hydraulic station 1 are connected to the P2 and T1 ports of the second valve block 10. The T2 ports are connected via the second tooling hose 14; the test pressure ports A1 and B1 of the first valve block 3 or the test pressure ports A2 and B2 of the second valve block 10 are respectively adapted to the third tooling hose 5 and the fourth tooling hose 8 via the conversion connector group 12; the third tooling hose 5 and the fourth tooling hose 8 are respectively connected to the hydraulic steel pipe 6 and the hydraulic hose 4; a pressurized air source 15 is provided between the first tooling hose 2 and the second tooling hose 14, and the pressurized air source 15 is connected after disconnecting the hydraulic station 1 from the first tooling hose 2 or the second tooling hose 14, and is used to purge the hydraulic oil in the pipeline to the oil drum 7; the box frame assembly 13-1 includes an oil receiving box 13-3, an oil drain plug 13-2, a box side door 13-4 and an upper cover plate 13-6, which are used to recover leaked hydraulic oil and improve operational safety.

[0028] The oil inlet ports P1 and P2 and the test pressure oil ports A1 and A2 of the valve block assembly 13-7 are internally interconnected, and the oil return ports T1 and T2 and the test pressure oil ports B1 and B2 are internally interconnected.

[0029] The box frame assembly 13-1 is also provided with a connector group storage box 13-8 for storing the matching connectors of the conversion connector group 12, and is closed by the storage box door panel 13-9. In addition, the top of the box frame assembly 13-1 is provided with a lifting lug 13-5 for frame hoisting operations.

[0030] A plug 11 is provided at the test pressure port of the first valve block 3 and the second valve block 10 to seal the unused oil port.

[0031] The oil receiving box 13-3 is provided with an oil drain pipe on its side, which is sealed by an oil drain plug 13-2 for recovering leaked hydraulic oil.

[0032] The working process of this utility model is as follows:

[0033] Hydraulic station 1 is connected to first valve block 3 and second valve block 10 via first tooling hose 2 and second tooling hose 14, respectively, and both are fixed above oil receiving box 13-3 with bolts. The test pressure ports of first valve block 3 and second valve block 10 are adapted to hydraulic hoses 4 or hydraulic steel pipes 6 of different specifications via adapter assembly 12. After the pressure test is completed, the hydraulic station connection is disconnected and a pressurized air source 15 is connected, and the oil in the pipeline is purged to oil tank 7 through high-pressure ball valve 9.

[0034] The oil collection box 13-3 of the housing frame assembly 13-1 can collect leaked oil, and the drain plug 13-2 facilitates centralized recycling; the side door 13-4 and the top cover 13-6 of the housing are closed during the test to prevent high-pressure oil splashing and ensure operational safety.

[0035] This device, through its modular design and compatibility with various pipeline specifications, significantly improves the efficiency of hydraulic pipeline pressure testing, reduces resource waste, and is suitable for the fields of petroleum equipment manufacturing and maintenance.

[0036] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, based on the technical teachings provided by this utility model and as common knowledge in the field of hydraulics, other equivalent modifications and improvements can be made, and these should also be considered within the scope of protection of this utility model.

Claims

1. A high-efficiency multifunctional hydraulic pipeline pressure testing device, characterized in that, Including hydraulic station (1), the hydraulic station (1) is equipped with oil outlet P01, oil outlet P02 and oil return port T respectively; The rear side of the hydraulic station (1) is provided with a box valve block assembly (13), and the box valve block assembly (13) comprises a valve block assembly (13-7) and a box frame assembly (13-1); The valve block assembly (13-7) comprises a first valve block (3), a second valve block (10), a conversion joint group (12) and a high-pressure ball valve (9), the first valve block (3) is a small-diameter small-flow valve, the first valve block (3) is provided with an oil inlet P1, an oil return port T1, a pressure test oil port A1 and B1; The second valve block (10) is a large-diameter large-flow valve, the second valve block (10) is provided with an oil inlet P2, an oil return port T2, a pressure test oil port A2 and B2; The conversion joint group (12) contains metric screw conversion joint, American screw conversion joint and flange conversion joint; The high-pressure ball valve (9) is arranged at the oil discharge port of the first valve block (3) and the second valve block (10); The P01 and T ports of the hydraulic station (1) are connected to the P1 and T1 ports of the first valve block (3) through the first tooling hose (2); The P02 and T ports of the hydraulic station (1) are connected to the P2 and T2 ports of the second valve block (10) through the second tooling hose (14); The pressure test oil ports A1 and B1 of the first valve block (3) or the pressure test oil ports A2 and B2 of the second valve block (10) are respectively connected to the third tooling hose (5) and the fourth tooling hose (8) through the conversion joint group (12); The third tooling hose (5) and the fourth tooling hose (8) are respectively connected to the hydraulic steel pipe (6) and the hydraulic hose (4); A pressurized gas source (15) is arranged between the first tooling hose (2) and the second tooling hose (14), the pressurized gas source (15) is connected by disconnecting the connection between the hydraulic station (1) and the first tooling hose (2) or the second tooling hose (14), and is used for blowing the hydraulic oil in the pipeline to the oil tank (7); The box frame assembly (13-1) comprises an oil receiving box (13-3), a drain plug (13-2), a box side door (13-4) and an upper cover plate (13-6), which is used for recycling leaked hydraulic oil and improving operation safety.

2. The high-efficient multifunctional hydraulic pipeline pressure testing device according to claim 1, characterized in that: The oil inlets P1 and P2 and the pressure test oil ports A1 and A2 of the valve block assembly (13-7) are interconnected, and the oil return ports T1 and T2 and the pressure test oil ports B1 and B2 are interconnected.

3. The high-efficiency multifunctional hydraulic pipeline pressure testing device according to claim 1 or 2, characterized in that: The box frame assembly (13-1) is also provided with a joint group storage box (13-8) for storing the matched joints of the conversion joint group (12), and is closed through the storage box door plate (13-9).

4. The high-efficient multifunctional hydraulic pipeline pressure testing device according to claim 3, characterized in that: The pressure test oil ports of the first valve block (3) and the second valve block (10) are provided with plugs (11) for closing unused oil ports.

5. The high-efficient multifunctional hydraulic pipeline pressure testing device according to claim 4, characterized in that: The side of the oil receiving box (13-3) is provided with a drain pipe which is sealed through the drain plug (13-2), and is used for recycling leaked hydraulic oil.

6. The high-efficient multifunctional hydraulic pipeline pressure testing device according to claim 5, characterized in that: The box frame assembly (13-1) is provided with lifting lugs (13-5) at the top for frame lifting operation.