Rapid detection device for rubber plug for high-pressure water pumping

Abstract

The utility model provides a rubber plug rapid detection device for high-pressure pressurized water. The rubber plug rapid detection device comprises a water tank, a high-pressure water pump, a pressurization high-pressure pipeline, a pressure relief pipeline, a first high-pressure valve, a second high-pressure valve, a precision digital pressure gauge, a water inlet end, a rapid connector, a rubber plug, a left limiting ring, a right limiting ring, a thick-wall steel pipe and a tail sealing end. The rubber plug for high-pressure water pressing has the advantages that the rubber plug for high-pressure water pressing is simple in structure and convenient to operate; and (2) the rubber plug can be quickly detected before the high-pressure water-pressing test is carried out, so that the test efficiency is improved, and the test time and labor cost are saved.

Description

Technical Field

[0001] This utility model belongs to the field of in-situ measurement technology in engineering geology, and specifically relates to a rapid detection device for high-pressure water pressure rubber plugs. Background Technology

[0002] The high-pressure water pressure test involves isolating a section of the borehole with a rubber plug, then injecting pressurized water into the isolated section and measuring the injection flow rate per unit time to obtain the permeability parameters of the test section. The rubber plug is the main component of the high-pressure water pressure test and should have excellent pressure expansion, depressurization contraction performance, and sealing performance under high-pressure conditions.

[0003] The performance of rubber plugs is affected by factors such as time, temperature, and light exposure. Furthermore, impacts during transportation and handling, or contact with other sharp objects, can all cause damage to the rubber plugs. Therefore, performance testing is necessary before both initial installation and subsequent reuse. Currently, there is a lack of rapid testing devices for rubber plug performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a rapid detection device for rubber plugs used in high-pressure water pressure, which can effectively solve the aforementioned problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] This utility model provides a rapid testing device for rubber plugs used in high-pressure water pressure, comprising: a water tank (1), a high-pressure water pump (2), a pressurizing high-pressure pipeline (31), a depressurizing pipeline (32), a first high-pressure valve (33), a second high-pressure valve (34), a precision digital pressure gauge (4), a water inlet end (5), a quick connector (51), a rubber plug (6), a left limiting ring (61), a right limiting ring (62), a thick-walled steel pipe (7), and a tail sealing end (8);

[0007] A rubber plug (6) is installed inside the thick-walled steel pipe (7). A left-side limiting ring (61) is fitted on the left outer wall of the rubber plug (6), and a right-side limiting ring (62) is fitted on the right outer wall. The water inlet head (5) is threaded onto the left end of the rubber plug (6), and the tail sealing head (8) is threaded onto the right end. The water inlet head (5) has a water inlet channel communicating with the inner cavity of the rubber plug (6). The quick connector (51) is installed at the end of the water inlet head (5).

[0008] The inlet of the high-pressure water pump (2) is connected to the water tank (1), and the outlet is connected to one end of the pressurized high-pressure pipeline (31); the other end of the pressurized high-pressure pipeline (31) is sealed and connected to the quick connector (51); the first high-pressure valve (33) and the precision digital pressure gauge (4) are installed sequentially on the pressurized high-pressure pipeline (31) in the direction of water inlet.

[0009] One end of the pressure relief pipeline (32) is connected to the pressurized high-pressure pipeline (31), and the connection point is located between the first high-pressure valve (33) and the precision digital pressure gauge (4); the other end of the pressure relief pipeline (32) is equipped with the second high-pressure valve (34).

[0010] Preferably, the quick connector (51) is threadedly connected to the water inlet end (5).

[0011] Preferably, in the non-pressurized state, there is a gap between the rubber plug (6) and the thick-walled steel pipe (7).

[0012] Preferably, the water inlet end (5) includes an integrally formed cylindrical section located inside the thick-walled steel pipe (7) and a hexagonal prism located outside the thick-walled steel pipe (7); the tail sealing end (8) includes an integrally formed cylindrical section located inside the thick-walled steel pipe (7) and a hexagonal prism located outside the thick-walled steel pipe (7).

[0013] Preferably, the cylindrical sections of the inlet end (5), the cylindrical sections of the tail sealing end (8), the rubber plug (6), the left limiting ring (61), and the right limiting ring (62) have the same outer diameter.

[0014] Preferably, the wall thickness of the thick-walled steel pipe (7) is not less than 3 mm.

[0015] The present invention provides a rapid testing device for high-pressure water pressure rubber plugs, which has the following advantages: (1) It provides a high-pressure water pressure rubber plug with a simple structure and convenient operation. (2) It can quickly test the rubber plug before conducting a high-pressure water pressure test, thereby improving test efficiency and saving test time and labor costs. Attached Figure Description

[0016] Figure 1 A cross-sectional view of a high-pressure water pressure rubber plug rapid detection device provided by this utility model.

[0017] Wherein: 1-Water tank; 2-High-pressure water pump; 31-Pressure-pressurizing pipeline; 32-Depressurization pipeline; 33-First high-pressure valve; 34-Second high-pressure valve; 4-Precision digital pressure gauge; 5-Water inlet end; 51-Quick connector; 6-Rubber plug; 61-Left side limiting ring; 62-Right side limiting ring; 7-Thick-walled steel pipe; 8-Tail sealing end. Detailed Implementation

[0018] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] This invention is applicable to in-situ measurement technology in engineering geology, such as hydropower, water conservancy, transportation, and mining, especially for high-pressure water pressure testing. It enables rapid testing of specialized rubber plugs before testing, improving testing efficiency and reducing costs. This invention is a simple and easy-to-operate rapid testing device for high-pressure water pressure rubber plugs.

[0020] See Figure 1 This utility model provides a rapid testing device for rubber plugs used in high-pressure water pressure, comprising: a water tank 1, a high-pressure water pump 2, a pressurizing high-pressure pipeline 31, a depressurizing pipeline 32, a first high-pressure valve 33, a second high-pressure valve 34, a precision digital pressure gauge 4, a water inlet end 5, a quick connector 51, a rubber plug 6, a left limiting ring 61, a right limiting ring 62, a thick-walled steel pipe 7, and a tail sealing end 8;

[0021] The wall thickness of the thick-walled steel pipe 7 is not less than 3mm; a rubber plug 6 is installed inside the thick-walled steel pipe 7, and there is a gap between the rubber plug 6 and the thick-walled steel pipe 7 when it is not pressurized; a left limiting ring 61 is fitted on the left outer wall of the rubber plug 6, and a right limiting ring 62 is fitted on the right outer wall; a water inlet end 5 is threadedly installed on the left end of the rubber plug 6, and a tail sealing end 8 is threadedly installed on the right end; the water inlet end 5 has a water inlet channel communicating with the inner cavity of the rubber plug 6; a quick connector 51 is installed on the end of the water inlet end 5; specifically, the quick connector 51 is threadedly connected to the water inlet end 5.

[0022] The inlet of the high-pressure water pump 2 is connected to the water tank 1, and the outlet is connected to one end of the pressurized high-pressure pipeline 31; the other end of the pressurized high-pressure pipeline 31 is sealed and connected to the quick connector 51; on the pressurized high-pressure pipeline 31, the first high-pressure valve 33 and the precision digital pressure gauge 4 are installed in sequence according to the water inlet direction;

[0023] One end of the pressure relief line 32 is connected to the pressurization high-pressure line 31, and the connection point is located between the first high-pressure valve 33 and the precision digital pressure gauge 4; the other end of the pressure relief line 32 is equipped with a second high-pressure valve 34.

[0024] The inlet end 5 includes an integrally formed cylindrical section inside the thick-walled steel pipe 7 and a hexagonal column outside the thick-walled steel pipe 7; the tail sealing end 8 includes an integrally formed cylindrical section inside the thick-walled steel pipe 7 and a hexagonal column outside the thick-walled steel pipe 7. The hexagonal column facilitates installation and disassembly. Additionally, a quick-connect coupling 51 is provided at the inlet end 5 for efficient connection and disconnection from the pipeline.

[0025] The cylindrical sections of the inlet end 5, the cylindrical section of the tail sealing end 8, the rubber plug 6, the left limiting ring 61, and the right limiting ring 62 have the same outer diameter to press the two ends of the rubber plug 6 tightly and ensure its own sealing when being tested.

[0026] In practical applications, the entire testing device, including the high-pressure water pump 2, the pressurized high-pressure pipeline 31, the pressure relief pipeline 32, the precision digital pressure gauge 4, the water inlet end 5, the thick-walled steel pipe 7, and the tail sealing end 8, has a rated working pressure of not less than 30MPa, covering the pressure range of the rubber plug under test under normal working conditions.

[0027] The cylindrical sections of the inlet end 5 and the tail sealing end 8 for rapid testing have three main types of diameters: Φ76mm, Φ91mm, and Φ127mm, to cover the three commonly used rubber plugs 6 of various diameters, and the wall thickness of the thick-walled steel pipe 7 used for testing is not less than 3mm.

[0028] The detection method of a rapid detection device for high-pressure water pressure rubber plugs is as follows:

[0029] (1) Assemble the rubber plug 6 and the detection device, install the left limiting ring 61 and the right limiting ring 62 at both ends of the rubber plug 6, install the water inlet end 5 on the left and the tail sealing end 8 on the right; and install it into the thick-walled steel pipe 7, and connect it in sequence to the precision digital pressure gauge 4, the first high-pressure valve 33, the second high-pressure valve 34 and the high-pressure water pump 2.

[0030] (2) Open the first high-pressure valve 33, close the second high-pressure valve 34, start the high-pressure water pump 2, and pressurize the rubber plug 6 to the rated working pressure by observing the reading of the precision digital pressure gauge 4, which is generally 20MPa; then, keep the second high-pressure valve 34 open and close the first high-pressure valve 33, record the pressure value of the precision digital pressure gauge 4 and start timing. If the pressure drops less than 5% of the test pressure within 5 minutes, it indicates that its working condition performance meets the requirements.

[0031] (3) Then keep the first high-pressure valve 33 closed, open the second high-pressure valve 34, complete the depressurization operation, disassemble the equipment, and complete the rapid testing work.

[0032] This utility model has the following beneficial effects:

[0033] (1) A rubber plug for high-pressure water pressure is provided, which is simple in structure and easy to operate. (2) The rubber plug can be quickly tested before high-pressure water pressure test, which improves test efficiency and saves test time and labor costs.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-pressure water rubber plug rapid detection device for detecting a rubber plug, characterized in that, include: Water tank (1), high-pressure water pump (2), pressurization high-pressure pipeline (31), depressurization pipeline (32), first high-pressure valve (33), second high-pressure valve (34), precision digital pressure gauge (4), water inlet end (5), quick connector (51), rubber plug (6), left side limiting ring (61), right side limiting ring (62), thick-walled steel pipe (7) and tail sealing end (8); A rubber plug (6) is installed inside the thick-walled steel pipe (7). A left-side limiting ring (61) is fitted on the left outer wall of the rubber plug (6), and a right-side limiting ring (62) is fitted on the right outer wall. The water inlet head (5) is threaded onto the left end of the rubber plug (6), and the tail sealing head (8) is threaded onto the right end. The water inlet head (5) has a water inlet channel communicating with the inner cavity of the rubber plug (6). The quick connector (51) is installed at the end of the water inlet head (5). The inlet of the high-pressure water pump (2) is connected to the water tank (1), and the outlet is connected to one end of the pressurized high-pressure pipeline (31); the other end of the pressurized high-pressure pipeline (31) is sealed and connected to the quick connector (51); the first high-pressure valve (33) and the precision digital pressure gauge (4) are installed sequentially on the pressurized high-pressure pipeline (31) in the direction of water inlet. One end of the pressure relief pipeline (32) is connected to the pressurized high-pressure pipeline (31), and the connection point is located between the first high-pressure valve (33) and the precision digital pressure gauge (4); the other end of the pressure relief pipeline (32) is equipped with the second high-pressure valve (34).

2. The rubber plug rapid detection device for high-pressure water according to claim 1, characterized in that, The quick connector (51) is threadedly connected to the water inlet end (5).

3. The rubber plug rapid detection device for high-pressure water according to claim 1, characterized in that, In the unpressurized state, there is a gap between the rubber plug (6) and the thick-walled steel pipe (7).

4. The high-pressure water rubber plug rapid detection device according to claim 1, characterized in that, The inlet end (5) includes an integrally formed cylindrical section inside the thick-walled steel pipe (7) and a hexagonal prism outside the thick-walled steel pipe (7); the tail sealing end (8) includes an integrally formed cylindrical section inside the thick-walled steel pipe (7) and a hexagonal prism outside the thick-walled steel pipe (7).

5. The device for rapid detection of rubber plug for high-pressure water according to claim 4, characterized in that, The cylindrical sections of the inlet end (5), the cylindrical sections of the tail sealing end (8), the rubber plug (6), the left limiting ring (61), and the right limiting ring (62) have the same outer diameter.

6. The high-pressure water rubber plug rapid detection device according to claim 1, characterized in that, The wall thickness of the thick-walled steel pipe (7) is not less than 3 mm.

Images