External water pressure test device and method for connecting circular interface product

Abstract

The invention relates to the field of water pressure test devices, in particular to an external water pressure test device and method for connecting a circular interface product, the device comprises a test cabin body with two end parts being arc surfaces, and an inner cavity for carrying out an external water pressure test is formed in the test cabin body; a bottom pedal is fixedly arranged at the bottom of the inner cavity, a connecting base is fixedly arranged on the bottom pedal, the connecting base is in a hollow cylinder shape, the connecting base penetrates through the bottom of the test cabin body, and the connecting base is connected with a middle piece capable of being adaptively connected with different products through a flange. The device can be adapted to tests of products with different circular interfaces.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water pressure test device, in particular to a kind of outer water pressure test device and method of connecting circular interface product. BACKGROUND

[0002] The outer water pressure test is sealed after being completely placed in the device, and the sealing of the device and the test water pressure must ensure 100% coverage of the pressure surface of the tested product.

[0003] The current outer water pressure test device is mostly a special device, which can only perform single water pressure test on a certain product, lacks scalability and is prone to be idle when corresponding products are not available. When the product is large, the outer water pressure device is heavy when fully loaded, and requires high load bearing capacity of the site. SUMMARY

[0004] One of the purposes of the present application is to provide an outer water pressure test device for connecting circular interface products to solve the problem of lack of scalability of existing outer water pressure test devices.

[0005] The outer water pressure test device for connecting circular interface products in the present application includes a test cabin body with circular arc faces at both ends, and an inner cavity for outer water pressure test is formed in the test cabin body. A bottom step is fixedly arranged at the bottom of the inner cavity, a connecting base is fixedly arranged on the bottom step, the connecting base is hollow and cylindrical, the connecting base penetrates the bottom of the test cabin body, and an intermediate piece capable of adapting to different products is connected to the connecting base through a flange.

[0006] The beneficial effects of the present application are as follows: The outer water pressure test device for connecting circular interface products in the present application can adapt to the test of products with different circular interfaces by changing the size of the intermediate connecting part while ensuring the test requirements of the main adapted products. At the same time, the intermediate connecting part forms an inner cavity to reduce the water consumption of the device and effectively reduce the weight when fully loaded.

[0007] Preferably, in order to facilitate the installation of the intermediate piece and adapt more products to water pressure test, ensure the installation effect and test effect, the intermediate piece is cylindrical, the outer side wall of the intermediate piece is provided with an azimuth line for cooperating with the test orientation of the product to be tested, the azimuth line is parallel to the axial direction of the intermediate piece, two installation bases for installing eccentric products are fixedly arranged on one end side of the intermediate piece, and the installation bases are located on opposite sides.

[0008] Preferably, in order to ensure the uniformity of the pressure bearing of the test cabin body as a whole during the water pressure test process, a plurality of through holes are formed in the bottom step, and the diameter of the through holes is less than or equal to 30 mm.

[0009] Preferably, in order to facilitate the installation and disassembly of the test cabin, a ladder is fixed on the inner and outer walls of the test cabin, and a plurality of supporting legs are fixed on the bottom of the test cabin, and the height of the supporting legs is sufficient for the staff to come out.

[0010] Preferably, in order to accurately monitor whether water leaks during the test, a camera is arranged in the hollow position of the connecting base, and the camera is signal-connected with a controller, and the controller is connected with a gate for controlling the water inflow and outflow.

[0011] One of the purposes of the present application is to provide an external water pressure test method for connecting circular interface products, so as to adapt to the test of products with different circular interfaces.

[0012] The external water pressure test method for connecting circular interface products comprises the following contents: S1, installing the product to be tested on the intermediate part of the connecting base fixed in the test cabin, and sealing the test cabin and filling water to fill the test cabin; S2, monitoring whether water leaks during the test through the camera in the hollow space of the connecting base; S3, when water leakage is detected, controlling the test cabin to discharge water through the controller.

[0013] Preferably, in order to facilitate the staff to enter the test cabin to install the product to be tested, in S1, the intermediate part is connected to the connecting base through a flange, and the connecting base is fixed on the bottom step.

[0014] Preferably, in order to facilitate the installation of the intermediate part and adapt to more products, in S1, an orientation line is arranged on the intermediate part, and an installation base for installing eccentric products is arranged on the intermediate part. DETAILED DESCRIPTION

[0015] Figure 1 is a longitudinal sectional view of the external water pressure test device for connecting circular interface products of the present application; Figure 2 is Figure 1 is a front view of the intermediate part. DETAILED DESCRIPTION

[0016] The specific embodiments will be further described in detail below.

[0017] The reference signs in the drawings of the specification include: test cabin 1, bottom step 2, connecting base 3, intermediate part 4, supporting leg 5, reinforcing rib plate 6, installation base 7.

[0018] An external water pressure test device for connecting circular interface products, such as Figure 1As shown: The test chamber 1 includes a test chamber body with rounded ends. The top of the test chamber body 1 is provided with an opening for installation needs to enter and exit. A sealing cover is connected to the opening. The sealing cover is connected to the test chamber body 1 by welding, or, under the condition of ensuring pressure resistance and no leakage, it can also be connected by flange. The test chamber body 1 has an inner cavity for conducting external water pressure tests.

[0019] A bottom pedal 2 is welded to the bottom of the inner cavity. The bottom pedal 2 is set around the bottom of the inner cavity and has multiple through holes that are evenly distributed. The diameter of the through holes is less than or equal to 30mm. A water level sensor is installed in the inner cavity to detect the water level in real time.

[0020] A connecting base 3 is welded onto the bottom pedal 2. The connecting base 3 is a hollow cylinder that penetrates the bottom of the test chamber 1. An intermediate component 4, which can be adapted to connect different products, is connected to the connecting base 3 via a flange. By raising the flange on the connecting base 3, a safe distance can be provided between the side mounting component and the bottom pedal 2.

[0021] The intermediate component 4 is cylindrical. The outer wall of the intermediate component 4 is engraved with azimuth lines that are installed to match the test orientation of the product to be tested. The azimuth lines are parallel to the axis of the intermediate component 4. Multiple azimuth lines are set, such as four azimuth lines, which are labeled as I, II, III, and IV. The four azimuth lines are evenly distributed around the intermediate component 4 so that they can be fixed according to the azimuth lines during installation.

[0022] The top of intermediate component 4 connects to the product to be tested and must be designed and manufactured according to the product's interface structure, with sealing requirements consistent with the product. The lower flange has a unified interface with the hydrostatic testing device and meets sealing requirements. Each side connecting base 3 connects to the product, with reasonable installation positions designed according to the product structure to ensure the overall assembly effect of the product. The length of the cylindrical section of intermediate component 4 must meet the distribution requirements of each mounting base 7.

[0023] like Figure 2 As shown, two mounting bases 7 for mounting eccentric products are fixed on one side of the intermediate component 4. The mounting bases 7 are arranged adjacent to each other, and the spacing between the mounting bases 7 is set according to actual needs. The mounting base 7 includes an Ω-shaped side plate and multiple supporting ribs. The supporting ribs are welded between the convex side wall of the side plate and the mounting base 7 to support the top plate. When installing the eccentric product, its circular interface is connected to the top of the intermediate component 4, and the side part of the eccentric product is connected to the mounting base 7. The specific installation sequence is determined according to the actual situation. The outer sides of both ends of the intermediate component 4 are integrally formed with mounting edges. Multiple reinforcing ribs 6 are welded to the mounting edges and the outer side wall of the intermediate component 4. The reinforcing ribs 6 are parallel to the axial direction of the intermediate component 4.

[0024] The hollow position of the connecting base 3 is provided with a camera, the camera adopts an existing 360-degree camera product, the camera is connected with a controller, the controller can be an existing PLC controller, the controller is connected with a gate for controlling water inflow and outflow, the gate is installed on the pipeline for water inflow and outflow according to actual requirements, and the gate can use an existing electromagnetic valve.

[0025] A plurality of ladder plates are welded on the inner and outer walls of the test cabin body 1, a plurality of supporting legs 5 are welded on the bottom of the test cabin body 1, and the height of the supporting legs 5 is set to be sufficient for workers to get out.

[0026] The effective space in the inner cavity of the test cabin body 1 is: a straight line segment ≥ an inner diameter φ5m*3m; the designed working pressure is: 4.0MPa; and the full load weight is: 150t.

[0027] In another embodiment, a special control system is provided to meet the loading and unloading control function requirements of the test cabin, for water injection, pressurization, pressure relief and drainage of the test cabin, and to establish a hydrostatic test environment in the test cabin. The control system mainly includes an electric control cabinet, a PID pressure control module, a pressure sensor, an electromagnetic valve, a safety valve, a water level sensor and various accessory pipelines and cables.

[0028] The electric control cabinet controls the pump to inject water into the test cabin, and after the cabin is filled with water, the top water level sensor sends a signal to close the top valve, continues to pressurize the cabin to the test pressure value, and closes the water inflow electromagnetic valve when the pressure is in place. When pressure relief, gradually reduce the pressure and drain water through the electric control cabinet. The PID pressure control module is responsible for data acquisition and storage, fault alarm, test recording and report generation and other functions. The pressure control accuracy is ±0.1MPa, automatic pressure compensation, and the pressure measurement accuracy is ±0.01MPa.

[0029] In addition, a pressure increasing / decreasing device is also configured, including a pressure pump, a pipeline and a valve, to increase / decrease the pressure in the hydrostatic test cabin to meet the test requirements; a variable frequency high pressure water pump is used as the pressure source, a pressure reducing valve group or a pressure regulator is selected, a high precision pressure sensor is configured to detect the water pressure at the key point, the tank body is well sealed, has automatic pressure compensation function design, and can realize the functions of pressure increasing, pressure decreasing and pressure stabilizing. The test can also be carried out by step-by-step pressure increasing or decreasing through the configuration to improve the control accuracy of the pressure.

[0030] The connection circular interface product external hydrostatic test method based on the connection circular interface product external hydrostatic test device, comprising the following contents: S1, connect the intermediate piece 4 to the connecting base 3 through the flange, fix the connecting base 3 on the bottom platform 2, install the product to be tested on the intermediate piece 4 fixed on the connecting base 3 in the test cabin 1, seal the test cabin 1, fill water to fill the test cabin 1, set the azimuth line on the intermediate piece 4, and set the mounting base 7 for installing the eccentric product on the intermediate piece 4.

[0031] S2, during the test, monitor whether the water leaks through the camera at the hollow space in the connecting base 3, the camera monitors 360°, and the monitored image can be identified by the recognition algorithm in the control chip of the camera.

[0032] S3, when the water leakage is monitored, the controller controls the water outlet of the test cabin 1.

[0033] During the test, the test environment is set as: normal temperature, working voltage of 380V, 50Hz, hardened ground, municipal water source and drainage channel; area ≥10m×10m, bearing capacity ≥150KN / m; supporting lifting capacity: ≥30t.

[0034] Compared with the prior art, the test device and the corresponding test method of the embodiment can connect different circular product to perform the external water pressure test, and can adapt to the test of products with different circular interfaces by changing the size of the intermediate connecting part under the premise of ensuring the test requirements of the main adapted products. At the same time, the intermediate connecting part forms an inner cavity to reduce the water consumption of the device and effectively reduce the weight under full load.

[0035] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be regarded as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An external hydrostatic testing device for connecting products with circular interfaces, comprising a test chamber with arc-shaped surfaces at both ends, wherein an inner cavity for conducting external hydrostatic testing is provided within the test chamber; Its features are: A bottom pedal is fixed at the bottom of the inner cavity, and a connecting base is fixed on the bottom pedal. The connecting base is a hollow cylinder that penetrates the bottom of the test chamber. An intermediate component that can be adapted to connect different products is connected to the connecting base via a flange.

2. The external water pressure testing device for connecting circular interface products according to claim 1, characterized in that: The intermediate component is cylindrical, and an orientation line is provided on the outer wall of the intermediate component to match the test orientation of the product to be tested. The orientation line is parallel to the axis of the intermediate component. Two mounting bases for mounting eccentric products are fixed on one side of the intermediate component, and the mounting bases are located on opposite sides.

3. The external water pressure testing device for connecting circular interface products according to claim 1, characterized in that: The bottom pedal has multiple through holes, the diameter of which is less than or equal to 30mm.

4. The external water pressure testing device for connecting circular interface products according to claim 1, characterized in that: Ladders are fixed to both the inner and outer walls of the test chamber, and multiple support legs are fixed to the bottom of the test chamber. The height of the support legs is set to be sufficient for personnel to exit.

5. The external water pressure testing device for connecting circular interface products according to claim 1, characterized in that: A camera is installed in the hollow part of the connecting base. The camera signal is connected to a controller, and the controller is connected to a gate that controls the inlet and outlet of water.

6. A method for testing the external water pressure of products with circular interfaces, characterized in that, Includes the following: S1, install the product to be tested onto the intermediate part on the fixed connecting base inside the test chamber, seal the test chamber, and fill the test chamber with water; S2, during the test, a camera connected to the hollow space inside the base was used to monitor for water leakage; S3, when a leak is detected, controls the water to be discharged from the test chamber via the controller.

7. The external water pressure test method for a product with a circular interface according to claim 1, characterized in that: In step S1, the intermediate component is connected to the connecting base via a flange, and the connecting base is fixed to the bottom pedal.

8. The external water pressure test method for a product with a circular interface according to claim 1, characterized in that: In step S1, an orientation line is set on the intermediate component, and a mounting base for installing eccentric products is set on the intermediate component.

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