Portable PCCP (prestressed concrete cylinder pipe) connector hydrostatic test pressurizing pump

Abstract

The utility model provides a portable pressurizing pump for a PCCP (prestressed concrete cylinder pipe) interface hydraulic test. The portable pressurizing pump comprises a main box body, a box cover, a hand pump, a water injection pipe, a pressure gauge and a shoulder strap, a water storage tank is arranged in the main box body, a water injection port communicated with the water storage tank is formed in the upper end face of the main box body, the hand pump is fixed in the main box body, an operation handle of the hand pump is arranged on the upper end face of the main box body, and the pressure gauge is installed on the upper end face of the main box body; a water inlet pipeline of the hand pump is communicated with the water storage tank, a pump-out pipeline is led out of the upper end face of the main box body and provided with a quick connection connector, a measuring head of the pressure gauge is communicated with the pump-out pipeline, a pressure release valve communicated with the water storage tank is further arranged on the pump-out pipeline, and the operation end of the pressure release valve is arranged on the upper end face of the main box body. The box cover is installed at the upper end of the main box body through hinges, a containing cavity for storing the water injection pipe is formed in the box cover, and the two ends of the water injection pipe are both quick connectors. Shoulder straps are arranged at two ends of the main box body. The pressurizing pump has the advantages of being high in integration level, specially used for PCCP connector pressure testing and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the field of a PCCP pipeline interface water pressure test device, in particular to a portable PCCP pipeline interface water pressure test pressure pump. Background Art

[0002] In order to facilitate the joint pressure test and ensure the sealing performance, the steel spigot ring of the large-diameter PCCP pipeline is made of steel that can be installed with double rubber rings. During the production process, two threaded pressure reserved holes are symmetrically processed on the rubber stop between the two rubber rings of the spigot ring for water pressure testing of the joint tightness after docking.

[0003] When installing the pipe, the reserved holes for pressure testing are located at the upper and lower parts of the pipe. The lower hole is the water inlet hole, and the upper hole is the exhaust hole, which is convenient for construction. The pipe is sealed with a screw plug when it is installed.

[0004] During the water pressure test, use a manual pressure test pump commonly used in small pipelines. First, tighten the special joint of the pressure tester to the reserved pressure hole at the bottom of the PCCP pipeline, loosen the plug of the reserved pressure hole at the top of the PCCP pipeline, and then use a hand pump to fill water into the cavity formed by the two rubber rings on the working surface of the socket. When water flows continuously from the reserved pressure hole on the top of the pipeline, it is considered that the water in the cavity is full. Immediately seal the exhaust hole on the top of the pipeline with a plug, and then use a pressure tester to apply pressure. Keep the pressure stable for 2 minutes and then conduct an appearance inspection. If there is no water leakage inside or outside the PCCP pipe joint and the pressure is stable, it indicates that the pipeline joint is tightly sealed and the water pressure test is qualified. Then remove the joint connected to the reserved pressure hole and proceed to the next joint test.

[0005] At present, the pressure pump used for the test adopts the manual pressure test pump sold on the market, and then the pipes and joints are made on site and assembled before testing. The structural stability is poor, and the pressure gauge is easily impacted or damaged due to the lack of a fixed position. The pressure pump itself has no water tank design, and the water supply is difficult. It is also easy to mix with debris, affecting the accuracy of the closed experiment.

[0006] In short, there is a lack of dedicated pressure pumps for pressure testing of PCCP pipelines. Utility Model Content

[0007] The utility model aims to address the deficiencies of the prior art and thus provide a portable PCCP pipeline interface water pressure test pump which has high integration, is specially used for PCCP pipeline interface pressure testing and is convenient to operate.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a portable PCCP pipeline interface water pressure test pressure pump, including a main box body, a box cover, a hand pressure pump, a water injection pipe, a pressure gauge and a shoulder strap;

[0009] A water storage tank is arranged inside the main box body, a water inlet connected to the water storage tank is arranged on the upper end surface of the main box body, the hand pressure pump is fixed in the main box body, an operating handle of the hand pressure pump is arranged on the upper end surface of the main box body, and the pressure gauge is installed on the upper end surface of the main box body;

[0010] The water inlet pipeline of the hand pump is connected to the water storage tank, the pump outlet pipeline is led out from the upper end surface of the main box body and is provided with a quick-connect interface, the probe of the pressure gauge is connected to the pump outlet pipeline, and the pump outlet pipeline is also provided with a pressure relief valve connected to the water storage tank, and the operating end of the pressure relief valve is provided on the upper end surface of the main box body;

[0011] The box cover is installed on the upper end of the main box body through hinges, and a cavity for storing a water injection pipe is arranged in the box cover, and both ends of the water injection pipe are quick-connect interfaces;

[0012] The shoulder straps are arranged at both ends of the main box.

[0013] Preferably, a sealing cover is provided at the water injection port.

[0014] Preferably, the main box body is made of stainless steel, the thickness of the main box body is ≥2 mm, the length, width and height of the main box body are ≥400×200×300 mm, and the inner diameter of the water injection port is ≥50 mm.

[0015] Preferably, a spring lock for interlocking is provided between the main box body and the box cover.

[0016] Preferably, the pressure value of the hand pump is ≥25kg, the total length of the pump body and the operating rod is ≥35cm, and the height is ≥10cm. The operating rod is a stainless steel tube with a diameter of ≥20mm, and a non-slip rubber-coated handle is provided at the tail end of the operating handle.

[0017] Preferably, the water injection pipe is an asbestos high-pressure explosion-proof hose, and the diameter of the water injection pipe is ≥15 mm.

[0018] Preferably, the quick-connect joints at both ends of the water injection pipe are hydraulic quick-connect joints.

[0019] Preferably, the measuring range of the pressure gauge is ≥2.5MPa, the pressure relief valve is a knob-type valve, and the valve core is a copper valve body.

[0020] Preferably, the shoulder strap is a nylon shoulder strap, and the width of the shoulder strap is ≥40mm and the length is ≥1100mm.

[0021] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0022] 1. The pressure pump integrates a manual pressure pump, a pressure gauge, a connecting pipe and a water tank. When a pressure test is required, the highly integrated pressure pump can be easily transferred to the location where the test is required and can be used after water injection. Moreover, since the water injection pipe adopts a quick-connect interface, it is very convenient to disassemble and install. It can quickly realize the water pressure test of the PCCP pipeline interface and various pipeline sealing performance water pressure tests to ensure the construction quality after the pipeline is installed. In actual operation, it saves labor and material losses, and the construction is fast, convenient and efficient.

[0023] 2. Connect the pressure gauge directly to the pump outlet pipeline. There is no need for a temporary pressure gauge connection. The detection stability is not affected. A pressure relief valve is set up in a targeted manner. After the test, the pressure relief valve can be used to reduce pressure and return water, thereby achieving the purpose of reuse and preventing safety hazards when disassembling the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a structural schematic diagram of a portable PCCP pipeline interface water pressure test pressure pump.

[0025] Figure 2 It is a schematic diagram of the internal structure of the main box in the utility model.

[0026] In the figure: 1. Main box; 2. Box cover; 3. Hand pump; 4. Water injection pipe; 5. Pressure gauge; 6. Shoulder strap;

[0027] 11. Water storage tank; 12. Water filling port; 13. Water inlet pipe; 14. Pump outlet pipe; 15. Quick connect interface; 16. Pressure relief valve. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0029] like Figure 1 and Figure 2 As shown, a portable PCCP pipeline interface water pressure test pressure pump includes a main box body 1, a box cover 2, a hand pressure pump 3, a water injection pipe 4, a pressure gauge 5 and a shoulder strap 6.

[0030] A water storage tank 11 is arranged inside the main box 1, and a water inlet 12 connected to the water storage tank 11 is arranged on the upper end surface of the main box 1, and a sealing cover is arranged at the water inlet 12, which is usually a plastic soft cover. The main box 1 is made of stainless steel, the thickness of the main box 1 is ≥2mm, the length, width and height of the main box 1 are ≥400×200×300mm, and the inner diameter of the water inlet 12 is ≥50mm.

[0031] The hand pump 3 is fixed in the main box body 1, the operating handle of the hand pump 3 is arranged on the upper end surface of the main box body 1, and the pressure gauge 5 is installed on the upper end surface of the main box body 1; the pressure value of the hand pump 3 is ≥25kg, the total length of the pump body and the operating rod is ≥35cm, and the height is ≥10cm. The operating rod is a stainless steel pipe with a diameter of ≥20mm, and a non-slip rubber-coated handle is arranged at the tail end of the operating handle.

[0032] The water inlet pipe 13 of the hand pump 3 is connected to the water tank 11, the pump outlet pipe 14 is led out from the upper end surface of the main box 1 and is provided with a quick-connect interface 15, the probe of the pressure gauge 5 is connected to the pump outlet pipe 14, the range of the pressure gauge is ≥2.5MPa, and the pressure relief valve is a knob-type valve, and the valve core is a copper valve body.

[0033] The pump outlet pipeline 14 is also provided with a pressure relief valve 16 which is connected to the water storage tank 11. The operating end of the pressure relief valve 16 is provided on the upper end surface of the main box body 1. The pressure relief valve 16 is a knob-type valve, and the valve core is a copper valve core with a long service life.

[0034] The box cover 2 is installed on the upper end of the main box body 1 through hinges. A cavity for storing a water injection pipe 4 is provided in the box cover 2. Both ends of the water injection pipe 4 are quick-connect interfaces. A spring lock for interlocking is provided between the main box body 1 and the box cover 2.

[0035] The water injection pipe 4 is an asbestos high-pressure explosion-proof hose, the diameter of the water injection pipe 4 is ≥15 mm, and the quick-connect joints at both ends of the water injection pipe 4 are hydraulic quick-connect joints.

[0036] The shoulder straps 6 are disposed at both ends of the main box 1 . The shoulder straps 6 are nylon shoulder straps. The width of the shoulder straps is ≥40 mm and the length is ≥1100 mm.

[0037] Working principle description:

[0038] When in use, open the push spring lock on the front of the main box body 1, open the box cover 2, and inject the amount of water required for pressure into the water storage tank 11 through the water injection port 12 to ensure the cleanliness of the water.

[0039] Then take out the water injection pipe 4 from the box cover 2, connect one end of the water injection pipe 4 to the quick-connect interface 15 at the upper end of the main box body 1, and connect the other end to the quick-connect joint of the water inlet hole of the PCCP pipe, close the pressure relief valve 16, and ensure that the exhaust hole at the top of the PCCP pipe is open, and then start water injection.

[0040] Operate the operating handle of the hand pump 3 up and down until water comes out of the exhaust hole at the top, then seal the exhaust hole at the top of the PCCP pipe with a plug, and continue to pressurize until the pressure gauge shows that the test pressure has been reached.

[0041] Then maintain the pressure for a certain period of time to observe whether there are any leaks at the joints around the PCCP pipeline and whether the pressure gauge reading changes.

[0042] After the test is completed, release the pressure relief valve 16, the pressure gauge pressure returns to zero, the experimental water flows back to the water storage tank 11, remove the water injection pipe 4, coil the water injection pipe 4 into the tank cover 2, close the tank cover, and step onto the shoulder strap 6 to conduct the experiment of the next test point.

[0043] After a certain number of cycles or after a batch of experiments are completed, the water in the water storage tank 11 is drained and replaced with new clean water or left empty for next use.

[0044] The pressure pump can be used conveniently, with a simple structure and easy operation. It can quickly transport the pressure pump in the PCCP pipeline and quickly install it on the pipeline connection. It is suitable for the water pressure test of the PCCP pipeline interface and various pipeline sealing performance water pressure tests to ensure the construction quality after the pipeline is installed. In actual operation, it saves labor and material losses, and the construction is fast, convenient and efficient.

[0045] Finally, it should be noted that: The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A portable PCCP pipeline interface water pressure test pump, characterized by: Including main box body, box cover, hand pump, water injection pipe, pressure gauge and shoulder strap; A water storage tank is arranged inside the main box body, a water inlet connected to the water storage tank is arranged on the upper end surface of the main box body, the hand pressure pump is fixed in the main box body, an operating handle of the hand pressure pump is arranged on the upper end surface of the main box body, and the pressure gauge is installed on the upper end surface of the main box body; The water inlet pipeline of the hand pump is connected to the water storage tank, the pump outlet pipeline is led out from the upper end surface of the main box body and is provided with a quick-connect interface, the probe of the pressure gauge is connected to the pump outlet pipeline, and the pump outlet pipeline is also provided with a pressure relief valve connected to the water storage tank, and the operating end of the pressure relief valve is provided on the upper end surface of the main box body; The box cover is installed on the upper end of the main box body through hinges, and a cavity for storing a water injection pipe is arranged in the box cover, and both ends of the water injection pipe are quick-connect interfaces; The shoulder straps are disposed at both ends of the main box.

2. The portable PCCP pipeline interface water pressure test pump according to claim 1 is characterized in that: A sealing cover is arranged at the water injection port.

3. The portable PCCP pipeline interface water pressure test pump according to claim 1 or 2, characterized in that: The main box body is made of stainless steel, the thickness of the main box body is ≥2mm, the length, width and height of the main box body are ≥400×200×300mm, and the inner diameter of the water injection port is ≥50mm.

4. The portable PCCP pipeline interface water pressure test pump according to claim 3 is characterized in that: A spring lock for interlocking is arranged between the main box body and the box cover.

5. The portable PCCP pipeline interface water pressure test pump according to claim 3 is characterized by: The pressure value of the hand pump is ≥25kg, the total length of the hand pump and the operating rod is ≥35cm, and the height is ≥10cm. The operating rod is a stainless steel tube with a diameter of ≥20mm, and a non-slip rubber-coated handle is provided at the tail end of the operating handle.

6. The portable PCCP pipeline interface water pressure test pump according to claim 5 is characterized in that: The water injection pipe is an asbestos high-pressure explosion-proof hose, and the diameter of the water injection pipe is ≥15mm.

7. The portable PCCP pipeline interface water pressure test pump according to claim 6 is characterized in that: The quick-connect joints at both ends of the water injection pipe are hydraulic quick-connect joints.

8. The portable PCCP pipeline interface water pressure test pump according to claim 7 is characterized in that: The measuring range of the pressure gauge is ≥2.5MPa, the pressure relief valve is a knob-type valve, and the valve core is a copper valve body.

9. The portable PCCP pipeline interface water pressure test pump according to claim 7 is characterized in that: The shoulder strap is a nylon shoulder strap, the width of the shoulder strap is ≥40mm, and the length is ≥1100mm.

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