Pressing tool for hydrostatic test

Abstract

The utility model discloses a pressing tool for a hydrostatic test, which comprises a water tank and a water adding and draining pump, the water adding and draining pump is arranged at the top of the water tank and provided with a water adding and draining pipe, a pressure pump is arranged at the top of the water tank, the water outlet end of the pressure pump is connected with the bottom of a buffer water tank through a pipeline, and the water outlet end of the buffer water tank is connected with a water outlet pipe. A first buffer valve is arranged on a pipeline at the water outlet end of the booster pump, a second buffer valve is arranged at the water outlet end of the buffer water tank, a pressure gauge is arranged at the top of the buffer water tank, and the water tank, the water adding and draining pump, the booster pump and the buffer water tank are all arranged in the shell. The beneficial effects of the utility model are that: (1) the device has good versatility and normalization, can meet the pressing requirements of various parts, and reduces the equipment purchase and maintenance cost; and (2) through reasonable configuration of the pressure pump, the water adding and draining pump and the control panel, the pressurizing efficiency and the pressure control precision are improved, and the accuracy of a test result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pipe testing equipment, especially relates to a pressurizing tool for hydraulic test. BACKGROUND

[0002] Water pressure test is the key step to ensure the installation quality of water pipeline, pipe fitting, valve and its interface, through the pressure test, the tolerance of these components under the operating pressure and the tightness of the connecting pipe fitting interface can be effectively tested. Especially in the maintenance process of the hydroelectric generating set, the upper guide oil cooler, the lower guide oil cooler, the thrust oil cooler, the water guide oil cooler, the stator air cooler and the oil collecting tank oil cooler and other key components need to be strictly tested.

[0003] The existing pressurizing tool has the following problems: the tool is usually designed for a specific model or component, lacking universality; the tool management is chaotic, and parts are often replaced, resulting in the inability to find a complete set of pressurizing tools when needed; the flow and pressure parameters of the booster pump and the drainage pump are not reasonably designed, the pressurizing efficiency is not high, the pressure control is not accurate, and the accuracy of the test results is affected. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a pressurizing tool for hydraulic test, which comprises a water tank and a drainage pump, the drainage pump is arranged at the top of the water tank, the drainage pump is further provided with a drainage pipe, the top of the water tank is further provided with a booster pump, the water outlet end of the booster pump is connected with the bottom of a buffer tank through a pipeline, the water outlet end of the buffer tank is connected with a water outlet pipe, the water inlet end of the booster pump is provided with a first buffer valve, the water outlet end of the buffer tank is provided with a second buffer valve, the top of the buffer tank is provided with a pressure gauge, and the water tank, the drainage pump, the booster pump and the buffer tank are arranged in a shell.

[0005] As a preferred scheme, the water inlet end of the booster pump is arranged at the inner bottom of the water tank.

[0006] As a preferred scheme, the water inlet end of the booster pump is arranged at the inner bottom of the water tank.

[0007] As a preferred scheme, the side wall of the shell is provided with a water outlet hole and a drainage hole, the water outlet pipe passes through the water outlet hole and is connected with the measured object, and the drainage pipe passes through the drainage hole and is connected with an external water source.

[0008] As a preferred scheme, the top of the shell is provided with a control panel, and the control panel is electrically connected with the drainage pump, the booster pump, the first buffer valve, the second buffer valve and the pressure gauge.

[0009] As a preferred scheme, the side wall of the shell is provided with a plurality of heat dissipation holes.

[0010] As a preferred solution, the shell side wall is fixedly provided with a plurality of handles.

[0011] As a preferred solution, the rated flow of the pressurizing pump is not less than 6L / min, the rated working pressure range is 0-2MPa, the rated flow of the water feeding and discharging pump is not less than 25L / min, the motor protection level is not less than IP56, the medium is clean water, the pressure gauge range is 0-4MPa, and the accuracy level is 1.6.

[0012] The utility model discloses the beneficial effect that:

[0013] (1) have good versatility and normative, can adapt to the upper guide oil cooler, the lower guide oil cooler, the thrust oil cooler, the water guide oil cooler, the stator air cooler, the oil collecting groove oil cooler and so on many parts's demand of pressing, reduce equipment purchase and maintenance cost.

[0014] (2) through the reasonable configuration of pressurizing pump, water feeding and discharging pump and control panel, improve the pressing efficiency and pressure control precision, ensure the accuracy of test result. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the internal structure schematic view of the utility model.

[0017] Figure 3 It is the front view of the utility model.

[0018] Figure 4 It is the left view of the utility model.

[0019] In the drawing: 1, shell;101, water outlet hole;102, water feeding and discharging hole;103, heat dissipation hole;104, control panel;105, handle;2, water tank;3, water feeding and discharging pump;4, water feeding and discharging pipe;5, pressurizing pump;6, first buffer valve;7, buffer water tank;8, second buffer valve;9, pressure gauge;10, water outlet pipe. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail below according to the drawings and specific embodiment.

[0021] EMBODIMENT

[0022] As Figures 1-4The utility model provides a kind of pressing tool for hydrostatic test, including water tank 2 and drainage pump 3, drainage pump 3 is arranged at the top of water tank 2, drainage pump 3 is further provided with drainage pipe 4, the top of water tank 2 is further provided with pressurizing pump 5, the water outlet of pressurizing pump 5 is connected with the bottom of buffer tank 7 by pipeline, the water outlet of buffer tank 7 is connected with water outlet pipe 10, the water outlet of pressurizing pump 5 pipeline is provided with first buffer valve 6, the water outlet of buffer tank 7 is provided with second buffer valve 8, the top of buffer tank 7 is provided with pressure gauge 9, the water tank 2, drainage pump 3, pressurizing pump 5 and buffer tank 7 are all arranged in shell 1.

[0023] Further, the water suction end of the pressurizing pump 5 is arranged at the inner bottom of the water tank 2.

[0024] Further, the water suction end of the drainage pump 3 is arranged at the inner bottom of the water tank 2.

[0025] Further, the side wall of the shell 1 is provided with water outlet hole 101 and drainage hole 102, the water outlet pipe 10 passes through the water outlet hole 101 and is connected with the object to be measured, and the drainage pipe 4 passes through the drainage hole 102 and is connected with the external water source.

[0026] Further, the top of the shell 1 is provided with control panel 104, and the control panel 104 is electrically connected with the drainage pump 3, the pressurizing pump 5, the first buffer valve 6, the second buffer valve 8 and the pressure gauge 9.

[0027] Further, the side wall of the shell 1 is provided with a plurality of heat dissipation holes 103.

[0028] Further, two handles 105 are fixedly arranged on the side wall of the shell 1.

[0029] Further, the rated flow of the pressurizing pump 5 is not less than 6L / min, the rated working pressure range is 0-2MPa, the rated flow of the drainage pump 3 is not less than 25L / min, the motor protection level is not less than IP56, the medium is clean water, the pressure gauge 9 has a range of 0-4MPa and an accuracy level of 1.6.

[0030] The pressing process of the above tool is as follows: the drainage pipe 4 is connected with the water source, the drainage pump 3 is started, the water tank 2 is filled with water, the water outlet pipe 10 is connected with the pipe to be measured, the first buffer valve 6 and the second buffer valve 8 are opened, the pressurizing pump 5 is started, the pressure is increased to the test water pressure, the test time is waited to end, the pressurizing pump 5 is closed for pressure relief, then the drainage pump 3 is started to drain the water in the water tank 2, and the whole pressing process is completed.

Claims

1. A pressurizing tool for a water pressure test, comprising a water tank (2) and a drain pump (3), characterized in that, The water adding and discharging pump (3) is arranged on the top of the water tank (2), and the water adding and discharging pump (3) is further provided with a water adding and discharging pipe (4), and the top of the water tank (2) is further provided with a pressurizing pump (5), the water outlet end of the pressurizing pump (5) is connected with the bottom of a buffer water tank (7) through a pipeline, the water outlet end of the buffer water tank (7) is connected with a water outlet pipe (10), the water outlet end pipeline of the pressurizing pump (5) is provided with a first buffer valve (6), the water outlet end of the buffer water tank (7) is provided with a second buffer valve (8), and the top of the buffer water tank (7) is provided with a pressure gauge (9), and the water tank (2), the water adding and discharging pump (3), the pressurizing pump (5) and the buffer water tank (7) are arranged in the shell (1).

2. The pressurizing tool for hydraulic test according to claim 1, wherein The water inlet end of the pressurizing pump (5) is arranged on the inner bottom of the water tank (2).

3. The pressurizing tool for hydrostatic test according to claim 1, wherein, The water inlet end of the water adding and discharging pump (3) is arranged on the inner bottom of the water tank (2).

4. The pressurizing tool for hydrostatic test according to claim 1, wherein The side wall of the shell (1) is provided with a water outlet hole (101) and a water adding and discharging hole (102), the water outlet pipe (10) is connected with the object to be measured through the water outlet hole (101), and the water adding and discharging pipe (4) is connected with the external water source through the water adding and discharging hole (102).

5. The pressurizing tool for hydrostatic test according to claim 1, wherein The top of the shell (1) is provided with a control panel (104), and the control panel (104) is electrically connected with the water adding and discharging pump (3), the pressurizing pump (5), the first buffer valve (6), the second buffer valve (8) and the pressure gauge (9).

6. The pressurizing tool for hydrostatic test according to claim 1, wherein The side wall of the shell (1) is provided with a plurality of heat dissipation holes (103).

7. The pressurizing tool for hydrostatic test according to claim 1, wherein The side wall of the shell (1) is fixedly provided with a plurality of handles (105).

Images