A hydrostatic test device for a large group of bifurcated pipes

Abstract

The present invention discloses a hydrostatic test device for a large bifurcated pipe group, which relates to the field of pressure testing. The hydrostatic test device for a large bifurcated pipe group is used for the hydrostatic test of the bifurcated pipe group. The bifurcated pipe group has welds. The hydrostatic test device for a large bifurcated pipe group includes a hammering mechanism, a moving mechanism and a driving mechanism. The hammering mechanism is used for hammering the pipe wall of the bifurcated pipe group. The moving mechanism is connected to the hammering mechanism and is used for driving the hammering mechanism to move along the extension direction of the weld. The driving mechanism is in transmission connection with the hammering mechanism and the moving mechanism. Driven by the driving mechanism, the moving mechanism can move along the weld, and its movement range covers the welds of the entire bifurcated pipe group, so as to drive the hammering mechanism to move to various parts of the bifurcated pipe group. The hammering mechanism can hammer the pipe wall of the bifurcated pipe, and the hammering mechanism can eliminate the internal stress of the bifurcated pipe and detect whether there are hidden defects inside the weld, such as fine cracks. The test device can automatically hammer the pipe wall of the bifurcated pipe group, with high efficiency and reduced time cost.

Description

Technical Field

[0001] The invention relates to the field of pressure testing, and in particular to a large-scale bifurcated pipe group water pressure testing device. Background Art

[0002] In many engineering fields such as water conservancy, hydropower, water supply and drainage, large bifurcated pipe groups, as key connecting components of the pipeline system, play an important role in distributing and changing the flow direction of water. The hydraulic pressure test is to ensure the reliability and safety of large bifurcated pipe groups in long-term operation.

[0003] The water pressure test of large-scale bifurcated pipe groups is designed to simulate the pressure environment under actual working conditions. By injecting water into the large-scale bifurcated pipe group and gradually increasing the pressure to the design pressure, the key performance indicators of the bifurcated pipes, such as strength, stiffness and sealing, are tested, especially the inspection of welds.

[0004] When quality inspection is performed on the welds of a branch pipe group, an operator usually holds a small hammer and hammers along the weld section by section, judging the weld quality by the changes in the hammering sound, observing whether there is leakage, and monitoring the pressure changes in the branch pipe.

[0005] However, the existing large and complex branch pipe groups often have long welds, requiring operators to hammer along the densely packed welds one by one, making the entire process inefficient. This not only prolongs the hydraulic test cycle and increases the time cost of the project, but may also reduce the accuracy of the test due to manual fatigue. In addition, it is difficult to ensure uniform hammering force and hammering density, which may affect the test accuracy and test results. Summary of the invention

[0006] In view of the shortcomings of the above-mentioned related technologies, the present application provides a large-scale bifurcated pipe group water pressure testing device to solve the above-mentioned technical problems.

[0007] The present application provides a large-scale branch pipe group water pressure testing device, which is used for water pressure testing of branch pipe groups. The branch pipe groups have welds. The large-scale branch pipe group water pressure testing device includes a hammering mechanism, a moving mechanism and a driving mechanism. The hammering mechanism is used to hammer the pipe wall of the branch pipe group. The moving mechanism is connected to the hammering mechanism and is used to drive the hammering mechanism to move along the extension direction of the weld. The driving mechanism is connected to the hammering mechanism and the moving mechanism.

[0008] In one embodiment of the present application, the hammer mechanism includes a hammer member, an elastic member and a limit member. The hammer member is movably arranged relative to the moving mechanism. The elastic member is arranged between the moving mechanism and the hammer member. The limit member is transmission-connected between the driving mechanism and the hammer member. The limit member has a first position and a second position. When the limit member is in the first position, the limit member constrains the hammer member, and the hammer member squeezes the elastic member, and the elastic member is in a force storage state. When the limit member is in the second position, the limit member releases the hammer member, and the elastic member drives the hammer member to move toward the pipe wall. The driving mechanism is used to drive the limit member to switch between the first position and the second position.

[0009] In one embodiment of the present application, the moving mechanism is provided with an adjusting member, and one end of the elastic member away from the hammer member abuts against the adjusting member. The adjusting member is used to adjust the distance between the moving mechanism and the hammer member to change the elastic force applied by the elastic member to the hammer member.

[0010] In one embodiment of the present application, the moving mechanism includes a base plate, the hammering member is movably arranged relative to the base plate, the driving mechanism includes a transmission shaft, the transmission shaft is transmission-connected to the hammering member, the moving mechanism includes a driven wheel, the transmission shaft is provided with a driving wheel, the driving wheel is transmission-connected to the driven wheel, and under the drive of the driving wheel, the driven wheel can be movably arranged relative to the pipe wall.

[0011] In one embodiment of the present application, there are multiple hammering mechanisms, including a first hammering mechanism and a second hammering mechanism. The first hammering mechanism and the second hammering mechanism are suitable for being arranged on both sides of the weld. The driving mechanism transmits and connects the first hammering mechanism and the second hammering mechanism, and enables the first hammering mechanism and the second hammering mechanism to hammer the pipe wall alternately.

[0012] In one embodiment of the present application, the driving mechanism includes a first transmission member, a second transmission member and a driving member that are transmission-connected. The number of mobile mechanisms is multiple, and the multiple mobile mechanisms include a first mobile mechanism and a second mobile mechanism that are connected to each other. The first transmission member connects the first mobile mechanism and the first hammer mechanism, and the second transmission member connects the second mobile mechanism and the second hammer mechanism.

[0013] In one embodiment of the present application, the driving mechanism also includes a coupling, which is connected between the first transmission member and the second transmission member, and the first moving mechanism and the second moving mechanism are rotationally connected. When the first moving mechanism and the second moving mechanism rotate, the hammering directions of the first hammering mechanism and the second hammering mechanism intersect, and the rotation axis between the first moving mechanism and the second moving mechanism is collinear with the rotation axis of the coupling.

[0014] In one embodiment of the present application, the moving mechanism further includes a moving support seat, which is connected between the first moving mechanism and the second moving mechanism. The moving support seat is used to support the first moving mechanism and the second moving mechanism and is movably arranged with the pipe wall.

[0015] In one embodiment of the present application, the first hammering mechanism hammers the tube wall to form a first hammering point, and the second hammering mechanism hammers the tube wall to form a second hammering point. The first hammering point and the second hammering point are alternately distributed in the extension direction of the weld.

[0016] In one embodiment of the present application, the large-scale branch pipe group water pressure testing device also includes a guide rail, which is suitable for being detachably installed on the pipe wall of the branch pipe group, and the extension direction of the guide rail is the same as the extension direction of the weld, and the moving mechanism is movably connected to the guide rail.

[0017] In one embodiment of the present application, the guide rail includes a fitting portion and a connecting portion that are connected to each other. The fitting portion can be detachably installed on the pipe wall of the branch pipe group, and the fitting portion is provided with a plurality of clearance grooves so that the fitting portion can be bent and the connecting portion and the moving mechanism are slidably matched.

[0018] In one embodiment of the present application, the guide rail includes a plurality of guide rail sections, the guide rail sections are suitable for being detachably mounted on the pipe wall of the branch pipe group, and the plurality of guide rail sections are connected end to end in sequence.

[0019] In one embodiment of the present application, a sprocket is provided on the moving mechanism, the sprocket is drivingly connected to one of the first transmission member and the second transmission member, a chain is fixedly provided on the guide rail, and the sprocket is meshed with the chain.

[0020] In one embodiment of the present application, a large-scale branch pipe group water pressure testing device includes multiple water pressure testing groups, each of which has a hammering mechanism, a moving mechanism and a driving mechanism. The multiple water pressure testing groups of the same large-scale branch pipe group water pressure testing device are used to hammer multiple parts of the same weld, and the multiple water pressure testing groups hammer the branch pipe group alternately in sequence.

[0021] In one embodiment of the present application, the large-scale branch pipe group water pressure testing device also includes a connecting piece, and multiple water pressure testing groups are connected end to end in sequence, and the connecting piece connects two adjacent water pressure testing groups. In the water pressure testing group, the moving mechanism of at least one large-scale branch pipe group water pressure testing device moves along the extension direction of the weld and drives the remaining large-scale branch pipe group water pressure testing devices to move.

[0022] In one embodiment of the present application, a large-scale bifurcated pipe group water pressure testing device has a sensor, and the sensor is used to detect the pressure value in the bifurcated pipe group.

[0023] In one embodiment of the present application, a large bifurcated pipe group water pressure testing device is provided with a camera module, and the camera module is used to collect image information of the weld.

[0024] The technical solution adopted by the present invention can achieve the following beneficial effects: the large-scale bifurcated pipe group water pressure test device is applied to the water pressure test of the bifurcated pipe group. Driven by the driving mechanism, the mobile mechanism can move along the weld, and its range of movement covers the weld of the entire bifurcated pipe group, so as to drive the hammering mechanism to move to various places of the bifurcated pipe group. The hammering mechanism can hammer the pipe wall of the bifurcated pipe group, and the hammering mechanism can eliminate the internal stress of the bifurcated pipe group and detect whether there are hidden defects inside the weld, such as fine cracks. The test device can automatically hammer the pipe wall of the bifurcated pipe group, which is efficient and reduces time cost. Driven by the driving mechanism, the hammering mechanism and the mobile mechanism are arranged in coordination to improve the consistency of the hammering force and hammering density of the large-scale bifurcated pipe group water pressure test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of a test device and a bifurcated pipe group shown in an exemplary embodiment of the present application;

[0027] Figure 2 is a schematic diagram of the structure of a test device and a weld shown in an exemplary embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of a test device shown in an exemplary embodiment of the present application;

[0029] Figure 4 is a cross-sectional view of a test device shown in an exemplary embodiment of the present application;

[0030] Figure 5 is a cross-sectional view of a hammer mechanism in a first position shown in an exemplary embodiment of the present application;

[0031] Figure 6 is a cross-sectional view of a hammer mechanism in a second position shown in an exemplary embodiment of the present application;

[0032] Figure 7 is a schematic structural diagram of a position-limiting member and a transmission shaft shown in an exemplary embodiment of the present application;

[0033] Figure 8 is a schematic structural diagram of another test device shown in an exemplary embodiment of the present application;

[0034] Fig. 9is a schematic structural diagram of a test device from another perspective shown in an exemplary embodiment of the present application;

[0035] Fig.10 is a structural schematic diagram of another test device shown in an exemplary embodiment of the present application;

[0036] Fig.11 is a cross-sectional view of another test device shown in an exemplary embodiment of the present application;

[0037] Fig.12 It is a structural schematic diagram of a water pressure test group and a bifurcated pipe group shown in an exemplary embodiment of the present application.

[0038] In the figure: 1, test device; 110, hammer mechanism; 111, hammer member; 1111, transmission part; 112, elastic member; 113, limit member; 1131, limit surface; 1132, first end; 1133, second end; 114, first hammer mechanism; 115, second hammer mechanism; 120, moving mechanism; 121, adjustment member; 122, base plate; 123, driven wheel; 124, first moving mechanism; 125, second moving mechanism; 126, moving support seat; 1261, roller; 12 62. Telescopic bracket; 130. Driving mechanism; 131. Transmission shaft; 132. Driving wheel; 133. First transmission member; 134. Second transmission member; 135. Driving member; 136. Coupling; 140. Guide rail; 141. Fitting portion; 142. Connecting portion; 143. Clearance groove; 144. Guide rail section; 150. Shell; 2. Branch pipe group; 210. Weld; 220. Pipe wall; 3. Water pressure test group; 310. Connecting member; 320. First water pressure test group; 330. Second water pressure test group. DETAILED DESCRIPTION

[0039] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0040] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] The volume and mass of the bifurcated pipe group are too large, and it is difficult to directly form it in one piece. A large bifurcated pipe group is welded from multiple parts. The bifurcated pipe group has welds, and the welding quality of the welds will also affect the airtightness and structural strength of the bifurcated pipe group.

[0042] The water pressure test of large-scale bifurcated pipe groups is designed to simulate the pressure environment under actual working conditions. By injecting water into the large-scale bifurcated pipe group and gradually increasing the pressure to the design pressure, the key performance indicators of the bifurcated pipes, such as strength, stiffness and sealing, are tested, especially the inspection of welds.

[0043] When quality inspection is performed on the welds of a branch pipe group, an operator usually holds a small hammer and hammers along the weld section by section, judging the weld quality by the changes in the hammering sound, observing whether there is leakage, and monitoring the pressure changes in the branch pipe.

[0044] This application provides a large-scale bifurcated pipe group water pressure test device 1, please refer to Figure 1 as well as Figure 2 For the convenience of description, the following content is referred to as the test device 1. The test device 1 is used for the hydraulic test of the branch pipe group 2. The hydraulic test can detect the welding condition of the branch pipe group 2, the airtightness of the branch pipe group 2, etc.

[0045] See also Figure 3 The test device 1 may include a hammer mechanism 110 , a moving mechanism 120 and a driving mechanism 130 . The hammer mechanism 110 is connected to the moving mechanism 120 , and the driving mechanism 130 is connected to the hammer mechanism 110 and the moving mechanism 120 through transmission.

[0046] In addition, please refer to Figure 2 The test device 1 also has a shell 150, and the hammer mechanism 110, the moving mechanism 120 and the driving mechanism 130 are located in the shell 150. The shell 150 can protect the hammer mechanism 110, the moving mechanism 120 and the driving mechanism 130 to prevent them from being interfered by the outside world, thereby improving the protection capability of the test device 1.

[0047] Specifically, see Figure 3The hammer mechanism 110 is used to hammer the pipe wall 220 of the branch pipe group 2. According to the size and material of the branch pipe group 2, the pressure value of the water pressure test, the material and welding density of the weld 210 and other parameters, the hammering force of the hammer mechanism 110, the distance between the hammering point and the weld 210, the time difference between two adjacent hammerings, etc. are designed, and this embodiment is not limited. Among them, the hammering point can be the landing point where the hammering mechanism 110 hammers the pipe wall 220. Exemplarily, the minimum distance between the hammering point and the weld 210 can be 15cm-30cm, such as 15cm, 20cm or 30cm, etc., and the hammering force of the hammer mechanism 110 can be 50N-300N, 50N, 100N, 200N or 300N, etc., and this embodiment is not limited. The hammering mechanism 110 can achieve consistent hammering force, and the distance between its hammering point and the weld 210 is controllable, thereby optimizing the detection effect of the test device 1. During the hammering process of the hammering mechanism 110, water is injected into the fork pipe group 2 to generate water pressure. The internal pressure of the fork pipe group 2 will cause the weld 210 to be subjected to tensile stress and the like. At the same time, the hammering of the weld 210 by the hammering mechanism 110 can make the potential defects of the weld 210 more easily exposed, so as to complete the pressure test of the fork pipe group 2.

[0048] In addition, the hammering mechanism 110 causes the branch pipe group 2 to locally produce plastic elongation through the hammering action. This plastic elongation helps to release the residual tensile elastic strain generated during the welding process, thereby achieving the purpose of eliminating internal stress. In addition, when the branch pipe group 2 is hammered by the hammering mechanism 110, the distance between the atoms or molecules inside it will change, causing the pipe wall 220 of the branch pipe group 2 to produce a small plastic deformation. This deformation can release the internal stress originally accumulated in the pipe wall 220 due to welding and other reasons.

[0049] In a more specific embodiment, see Figure 4 The hammering mechanism 110 may include a hammering member 111, an elastic member 112 and a limiting member 113. The hammering member 111 is movably arranged relative to the moving mechanism 120, and the elastic member 112 is arranged between the moving mechanism 120 and the hammering member 111. The elastic member 112 may be a spring or a shrapnel, etc., and the hammering member 111 may be a wooden hammer or a copper hammer, etc., which is not limited in this embodiment. The limiting member 113 is transmission-connected between the driving mechanism 130 and the hammering member 111. Under the drive of the driving mechanism 130, the limiting member 113 can drive the hammering member 111 to hammer or store force, so that the hammering effect of the hammering member 111 can be controllable.

[0050] For more information, please see Figure 5 and Figure 6 The limiting member 113 has a first position and a second position, and the driving mechanism 130 is used to drive the limiting member 113 to switch between the first position and the second position. Figure 51 shows a schematic diagram of the structure of the limiting member 113 when it is in the first position. Figure 6 1 shows a schematic diagram of the structure of the limit member 113 in the second position. Exemplarily, the limit member 113 is connected to the driving mechanism 130, and the driving mechanism 130 drives the limit member 113 to rotate, and the first position and the second position are in the rotation path of the limit member 113. Figure 5 As shown, when the limiter 113 is in the first position, the limiter 113 constrains the hammer 111, and the hammer 111 moves in the direction away from the pipe wall 220 of the bifurcated pipe group 2. At this time, the moving mechanism 120 is fixed relative to the hammer 111, and the hammer 111 squeezes the elastic member 112. The elastic member 112 is deformed, and the elastic member 112 is in a force storage state. In the force storage state, the elastic member 112 has elastic force, and the elastic force continuously acts on the hammer 111.

[0051] like Figure 6 As shown, when the limiter 113 is in the second position, the limiter 113 releases the hammering member 111, and the limiter 113 does not continue to constrain the hammering member 111. At this time, the elastic force of the elastic member 112 still acts on the hammering member 111, and the elastic member 112 drives the hammering member 111 to move toward the pipe wall 220, and the hammering member 111 hammers the pipe wall 220 to complete the pressure test of the branch pipe group 2. During this period, except for the loss in the transmission process, the force of the hammering member 111 hammering the pipe wall 220 is equal to the elastic force applied to the hammering member 111 by the elastic member 112, and the magnitude of the elastic force is proportional to the deformation of the elastic member 112, which is not affected by the power or current of the driving mechanism 130. In each hammering process, the present embodiment drives the hammering member 111 to move to the same displacement through the limiter 113, so that the deformation of the elastic member 112 is consistent each time, thereby achieving the consistency of the hammering force of the hammering mechanism 110 and improving the hammering effect of the hammering device.

[0052] In a specific embodiment, see Figure 6 as well as Figure 7, driven by the driving mechanism 130, the limit member 113 is rotatably arranged. The limit member 113 has a limit surface 1131, and the limit surface 1131 has a first end 1132 and a second end 1133, and the distance between the first end 1132 and the rotation axis of the limit member 113 is smaller than the distance between the second end 1133 and the rotation axis of the limit member 113. The hammer member 111 has a transmission part 1111, and the transmission part 1111 is slidably matched with the limit surface 1131. The driving mechanism 130 drives the limit member 113, and the limit surface 1131 is rotatably arranged relative to the transmission part 1111, so that the transmission part 1111 slides between the first end 1132 and the second end 1133. When the limit member 113 is in the first position, the first end 1132 is against the transmission part 1111, and the hammer member 111 squeezes the elastic member 112. The elastic member 112 is deformed, and the elastic member 112 is in a force storage state. Due to the positional relationship between the first end 1132 and the second end 1133, when the limiting member 113 is in the second position, there is a space between the second end 1133 and the transmission part 1111, and the elastic force of the elastic member 112 acts on the hammer member 111. The elastic member 112 drives the hammer member 111 to move toward the tube wall 220 to complete the hammering work of the hammer member 111.

[0053] It is understandable that the power, rotation, etc. of the driving mechanism 130 do not affect the hammering force of the hammer member 111, but it can adjust the speed of the limit member 113, and the time difference between the switching of the limit member 113 between the first position and the second position changes in direct proportion to change the hammering frequency of the hammer member 111.

[0054] Preferably, please refer to Figure 4 , the moving mechanism 120 may be provided with an adjusting member 121, and one end of the elastic member 112 away from the hammer member 111 abuts against the adjusting member 121. The adjusting member 121 is used to adjust the distance between the moving mechanism 120 and the hammer member 111 to change the magnitude of the elastic force applied by the elastic member 112 to the hammer member 111. Exemplarily, the adjusting member 121 and the base plate 122 of the moving mechanism 120 are threadedly matched, and the distance between the adjusting member 121 and the base plate 122 is changed by rotating the adjusting member 121, thereby changing the distance between the adjusting member 121 and the hammer member 111. The magnitude of the elastic force is proportional to the deformation of the elastic member 112. When the distance between the adjusting member 121 and the hammer member 111 changes, the deformation of the elastic member 112 will also change accordingly. This setting can make the elastic force of the elastic member 112 adjustable, improve the degree of freedom of the test device 1, and enable the test device 1 to hammer the bifurcated pipe group 2 of different materials and shapes.

[0055] In this example, please refer to Figure 3The moving mechanism 120 is used to drive the hammer mechanism 110 to move along the extension direction of the weld 210. The moving range of the moving mechanism 120 can cover all parts of the weld 210, and then the moving mechanism 120 can drive the hammer mechanism 110 to move to all parts of the weld 210, so as to realize the detection of all parts of the weld 210 by the test device 1. In addition, the moving mechanism 120 and the hammer mechanism 110 are both driven by the driving mechanism 130. When the driving mechanism 130 drives the moving mechanism 120 to move a certain distance, the driving mechanism 130 can synchronously drive the hammer mechanism 110 to hammer. This setting can realize the same hammering density of the hammer mechanism 110 at all parts of the pipe wall 220. Among them, the hammering density can be the distribution density of the hammering points, which is related to the running speed of the moving mechanism 120 and the hammering speed of the hammering mechanism 110.

[0056] It is understandable that this embodiment can change the transmission ratio between the driving mechanism 130 and the moving mechanism 120 or the transmission ratio between the driving mechanism 130 and the hammering mechanism 110, change the moving speed of the moving mechanism 120 and the hammering speed of the hammering mechanism 110, and thus change the hammering density of the test device 1.

[0057] In one embodiment, please refer to Figure 4 The moving mechanism 120 may include a base plate 122, and the base plate 122 may provide a platform for supporting the hammer mechanism 110 and the driving mechanism 130. The relative distance between the moving mechanism 120 and its base plate 122 and the bifurcated pipe group 2 is fixed, and the hammer member 111 is movably arranged relative to the base plate 122, so that the hammer member 111 can hammer the pipe wall 220 of the bifurcated pipe group 2.

[0058] Please continue to participate Figure 4 The driving mechanism 130 may include a transmission shaft 131, which is connected to the hammering member 111 in a transmission manner. The hammering member 111 can be directly driven by the driving mechanism 130, thereby reducing the transmission loss between the driving mechanism 130 and the hammering mechanism 110 and improving the energy utilization rate. The moving mechanism 120 may include a driven wheel 123, and the transmission shaft 131 is provided with a driving wheel 132, which is connected to the driven wheel 123 in a transmission manner. The driving wheel 132 and the driven wheel 123 may be gears. Under the drive of the driving wheel 132, the driven wheel 123 can be movably arranged relative to the pipe wall 220. Between the moving mechanism 120 and the driving mechanism 130, through the transmission arrangement of the driving wheel 132 and the driven wheel 123, the transmission efficiency can be improved, and the transmission ratio can be changed to adjust the moving speed of the moving mechanism 120, thereby changing the hammering density of the test device 1.

[0059] In some other cases, the number of driven wheels 123 can be configured as multiple, such as 2, 3, etc., which is not limited in this embodiment. The multiple driven wheels 123 are sequentially connected by transmission, and the transmission connection method includes but is not limited to gear meshing, shaft transmission, etc., and one of the multiple driven wheels 123 is meshed with the driving wheel 132. This setting can enable the mobile mechanism 120 to achieve multi-stage speed change, so that the test device 1 can move stably.

[0060] It is understandable that the power and rotation speed of the driving mechanism 130 will also affect the speed of the driving wheel 132, which changes the moving speed of the moving mechanism 120 and further changes the distribution of the hammering points, so that the distribution of the hammering points is more reasonable and uniform.

[0061] Single-sided hammering of the weld 210 may not cover all areas of the weld 210, while double-sided hammering can more comprehensively detect various parts of the weld 210. However, this will further increase the workload of the test device 1 and reduce the working efficiency of the test device 1. In this embodiment, please refer to Figure 8 , the number of hammering mechanisms 110 is multiple, such as 2, 3 or 4, etc., which is not limited in this embodiment. The multiple hammering mechanisms 110 may include a first hammering mechanism 114 and a second hammering mechanism 115. Among them, the structures and sizes of the first hammering mechanism 114 and the second hammering mechanism 115 may be the same, which is not limited in this embodiment. The first hammering mechanism 114 and the second hammering mechanism 115 are suitable for being arranged on both sides of the weld 210. The first hammering mechanism 114 and the second hammering mechanism 115 can hammer both sides of the weld 210 respectively. This setting can enable the test device 1 to hammer all areas on both sides of the weld 210. The test device 1 only needs to work along the weld 210 once to cover both sides of the weld 210. This setting can effectively improve the working efficiency of the test device 1.

[0062] For further information, please refer to Figure 8The driving mechanism 130 is connected to the first hammer mechanism 114 and the second hammer mechanism 115 in a transmission manner, and the first hammer mechanism 114 and the second hammer mechanism 115 alternately hammer the pipe wall 220. For example, the relative positions of the stopper 113 of the first hammer mechanism 114 and the stopper 113 of the second hammer mechanism 115 are changed, one of the two stoppers 113 is in the first position, and the other is in the second position, so that the hammering member 111 of the first hammer mechanism 114 and the hammering member 111 of the second hammer mechanism 115 alternately hammer. This setting can reduce the interaction between the first hammer mechanism 114 and the second hammer mechanism 115, and avoid the occurrence of resonance and the like. In addition, there is a time difference between the hammering of the first hammer mechanism 114 and the second hammer mechanism 115. Within the time difference, the test device 1 can determine the hammering result of the last hammering, for example, whether there is leakage in the weld 210 after the last hammering. This arrangement prevents the first hammer mechanism 114 and the second hammer mechanism 115 from interfering with each other's hammering results.

[0063] In one embodiment, see Fig. 9 , the driving mechanism 130 may include a first transmission member 133, a second transmission member 134 and a driving member 135, and the first transmission member 133, the second transmission member 134 and the driving member 135 are connected to each other in a transmission manner. For example, the driving member 135 may be a driving motor, etc., the driving member 135 drives the first transmission member 133, and the first transmission member 133 drives the second transmission member 134. The number of the mobile mechanisms 120 is multiple, such as 2, 3, 4, etc., which is not limited in this embodiment. The multiple mobile mechanisms 120 include a first mobile mechanism 124 and a second mobile mechanism 125 connected to each other. Among them, the structure and size of the first mobile mechanism 124 and the second mobile mechanism 125 can be the same, such as the first mobile mechanism 124 and the second mobile mechanism 125 both include a driven wheel 123, which is not limited in this embodiment. The first transmission member 133 connects the first mobile mechanism 124 and the first hammer mechanism 114, and the second transmission member 134 connects the second mobile mechanism 125 and the second hammer mechanism 115.

[0064] For example, please refer to Figure 8 as well as Fig. 9, the first transmission member 133 and the second transmission member 134 are both provided with a transmission shaft 131, and the first moving mechanism 124 and the second moving mechanism 125 both include a driven wheel 123. The driving member 135 drives the transmission shaft 131 of the first transmission member 133, and the transmission shaft 131 of the first transmission member 133 is connected to the first hammering member 111 and the transmission shaft 131 of the second transmission member 134, and the transmission shaft 131 of the second transmission member 134 is connected to the second hammering member 111, so that the driving mechanism 130 drives the multiple hammering mechanisms 110 synchronously. During this period, the transmission shaft 131 of the first transmission member 133 and the transmission shaft 131 of the second transmission member 134 are both provided with a driving wheel 132, and the driving wheel 132 of the first transmission member 133 is used to drive the driven wheel 123 of the first moving mechanism 124, and the driving wheel 132 of the second transmission member 134 is used to drive the driven wheel 123 of the second moving mechanism 125, so that the driving mechanism 130 drives the multiple moving mechanisms 120 synchronously. This arrangement allows the driving mechanism 130 to be equipped with only one driving member 135, and can synchronously drive multiple moving mechanisms 120 and multiple hammering mechanisms 110, effectively reducing the cost of the test device 1. In addition, this arrangement can also ensure the transmission stability of the multiple moving mechanisms 120 and multiple hammering mechanisms 110.

[0065] In some other cases, the number of the driving mechanisms 130 may be multiple, such as 2, 3, 4, etc., which is not limited in this embodiment. Multiple driving mechanisms 130 correspond to multiple moving mechanisms 120 one by one, and / or multiple driving mechanisms 130 correspond to multiple hammering mechanisms 110 one by one. This arrangement enables each driving mechanism 130 to independently drive the moving mechanism 120 and / or the hammering mechanism 110, thereby improving the control effect of the driving mechanism 130.

[0066] The weld 210 may appear between the bulkhead and the main body of the branch pipe group 2. The surfaces on both sides of the weld 210 are not parallel, and it is difficult for the hammer mechanism 110 to hammer the pipe wall 220 around the weld 210. Fig. 9 as well as Fig.10 In this embodiment, the driving mechanism 130 may further include a coupling 136, which may be a flange coupling 136 or a sleeve coupling 136, etc., which is not limited in this embodiment. The coupling 136 is connected between the first transmission member 133 and the second transmission member 134, and the first moving mechanism 124 and the second moving mechanism 125 are rotationally connected. Fig.10 As shown, Fig.10The schematic diagram of the structure of the test device 1 after the first moving mechanism 124 and the second moving mechanism 125 are rotated is shown. When the first moving mechanism 124 and the second moving mechanism 125 are rotated, the hammering directions of the first hammering mechanism 114 and the second hammering mechanism 115 intersect. This setting allows the first hammering mechanism 114 and the second hammering mechanism 115 to be rotated relative to each other, and the mutually bent setting can adapt to the weld 210 with an angle. Because in actual applications, the first hammering mechanism 114 and the second hammering mechanism 115 may encounter situations where hammering operations need to be performed at different angles. Through rotational coordination, the positions of the two hammering mechanisms 110 can be flexibly adjusted to adapt to different working scenarios.

[0067] Preferably, the rotation axis between the first moving mechanism 124 and the second moving mechanism 125 is colinear with the rotation axis of the coupling 136. This arrangement enables the first moving mechanism 124 and the second moving mechanism 125 to rotate and match the coupling 136, avoiding the first moving mechanism 124 and the second moving mechanism 125 from interfering with the normal rotation of the coupling 136, ensuring that the first moving mechanism 124 and the second moving mechanism 125 can adapt to different bifurcated pipe groups 2, and broadening the scope of application of the test device 1.

[0068] In one embodiment, please refer to Fig. 9 The mobile mechanism 120 further includes a mobile support seat 126, which is connected between the first mobile mechanism 124 and the second mobile mechanism 125. The mobile support seat 126 is used to support the first mobile mechanism 124 and the second mobile mechanism 125, and is movably arranged with the tube wall 220. The mobile support seat 126 can provide a supporting force, which acts on the connection between the first mobile mechanism 124 and the second mobile mechanism 125 to prevent the first mobile mechanism 124 and the second mobile mechanism 125 from rotating incorrectly, thereby improving the stability of the test device 1. For example, Fig. 9 As shown, the mobile support seat 126 is rotatably matched with at least one of the first mobile mechanism 124 and the second mobile mechanism 125. In some embodiments, the mobile support seat 126 is provided with a roller 1261 and a telescopic bracket 1262. One end of the telescopic bracket 1262 is connected to at least one of the first mobile mechanism 124 and the second mobile mechanism 125, and the other end is connected to the roller 1261, and is supported on the tube wall 220 through the roller 1261, and the roller 1261 can roll on the tube wall 220. In this embodiment, the mobile support seat 126 can adjust the distance between the connection point of the first mobile mechanism 124 and the second mobile mechanism 125 and the tube wall 220 through the telescopic bracket 1262.

[0069] Preferably, see Fig.11The first hammer mechanism 114 hammers the pipe wall 220 to form a first hammer point, and the second hammer mechanism 115 hammers the pipe wall 220 to form a second hammer point. The first hammer point and the second hammer point are alternately distributed in the extension direction of the weld 210. In other words, in the extension direction of the weld 210, the first hammer point is located between two adjacent second hammer points. This arrangement allows the hammer points to be more tightly and evenly covered on the surface of the pipe wall 220, effectively increasing the hammer density.

[0070] In this example, please refer to Figure 3 as well as Figure 5 The test device 1 may further include a guide rail 140, which is suitable for being detachably mounted on the pipe wall 220 of the bifurcated pipe group 2. Exemplarily, the guide rail 140 may be configured as a magnetic member, and the guide rail 140 may be magnetically adsorbed on the pipe wall 220 of the bifurcated pipe group 2. The magnetic adsorption method may avoid damaging the pipe wall 220 of the bifurcated pipe group 2, and improve the flexibility of setting the guide rail 140.

[0071] The moving mechanism 120 can be movably connected with the guide rail 140, and the matching methods include but are not limited to sliders and slide grooves, etc., which are not limited in this embodiment. The moving mechanism 120 can be movably arranged along the guide rail 140, and the guide rail 140 can extend along the extension direction of the weld 210, so that the extension direction of the guide rail 140 and the extension direction of the weld 210 are in the same direction. The guide rail 140 can regulate the moving direction of the moving mechanism 120, so that multiple hammering points can be arranged according to the extension direction of the weld 210, so as to balance the hammering effect of the hammering mechanism 110 on various parts of the weld 210 of the branch pipe group 2, thereby improving the accuracy of the test results.

[0072] Exemplarily, a sprocket is provided on the mobile mechanism 120, and the sprocket is connected to one of the first transmission member 133 and the second transmission member 134. Further, the sprocket is provided on the first mobile mechanism 124 and / or the second mobile mechanism 125. The sprocket of the first mobile mechanism 124 is connected to the first transmission member 133, and / or the sprocket of the second mobile mechanism 125 is connected to the second transmission member 134. The guide rail 140 is fixedly provided with a chain, and the sprocket is engaged with the chain. The sprocket can be configured as a driven wheel 123 or other structure connected to the driven wheel 123, and the driven wheel 123 starts to rotate, and the sprocket and the chain rotate with each other. This setting enables the mobile mechanism 120 to be movably arranged relative to the guide rail 140.

[0073] In a more specific implementation, please continue to refer to Figure 5The guide rail 140 may include a fitting portion 141 and a connecting portion 142 connected to each other. The fitting portion 141 and the connecting portion 142 are disposed on two opposite surfaces of the guide rail 140. The fitting portion 141 is detachably mounted on the pipe wall 220 of the branch pipe group 2. The fitting portion 141 and the connecting portion 142 are disposed away from each other, so as to avoid mutual interference and improve the guiding effect of the guide rail 140.

[0074] The connecting portion 142 is in transmission connection with the moving mechanism 120. For example, one of the moving mechanism 120 and the connecting portion 142 is provided with a slide groove, and the other is provided with a slider, and the slider and the slide groove are slidably matched. At the same time, a chain is provided on the connecting portion 142, and the sprocket of the moving mechanism 120 is meshed with the chain, so that the moving mechanism 120 can move along the guide rail 140.

[0075] Furthermore, the fitting portion 141 is provided with a plurality of clearance grooves 143 so that the fitting portion 141 can be bent. For example, the groove walls of the clearance grooves 143 are close to and away from each other so that the guide rail 140 can be easily bent and arranged, and the bent fitting portion 141 can also fit the tube wall 220, thereby improving the installation effect of the guide rail 140. Preferably, please continue to refer to Figure 5 The guide rail 140 may include a plurality of guide rail sections 144, and the guide rail sections 144 are suitable for being detachably installed on the pipe wall 220 of the bifurcated pipe group 2, and the plurality of guide rail sections 144 are connected end to end in sequence. Compared with the entire guide rail 140, the guide rail section 144 is smaller in size and easier to install and carry. During the installation process, the detachability of the guide rail section 144 enables the installer to flexibly adjust the installation sequence and position according to the on-site conditions, greatly simplifying the installation process and shortening the construction period. The design of the guide rail section 144 enables the guide rail 140 to better adapt to the complex and changeable installation environment. The bifurcated pipe group 2 has a relatively complex and narrow area, and the guide rail section 144 can be customized according to the specific shape and size of the bifurcated pipe group 2 to ensure that each guide rail section 144 can fit the pipe wall 220 tightly and improve the overall performance of the system.

[0076] In this example, see Fig.12 The test device 1 may include multiple water pressure test groups 3, each of which has a hammering mechanism 110, a moving mechanism 120, and a driving mechanism 130. Multiple water pressure test groups 3 of the same test device 1 are used to hammer multiple parts of the same weld 210, and multiple water pressure test groups 3 hammer the branch pipe group 2 alternately in sequence. Exemplarily, the test device 1 may include a first water pressure test group 320 and a second water pressure test group 330, and the weld 210 has a first part and a second part. The first water pressure test group 320 detects the first part, and the second water pressure test group 330 can synchronously detect the second part. By setting up multiple water pressure test groups 3, the test time of the water pressure test of the branch pipe group 2 can be shortened and the test efficiency can be improved.

[0077] In one embodiment, please refer to Fig.12 , the test device 1 may also include a connector 310, which includes but is not limited to a traction rope or an arc rod, etc., which is not limited here. Multiple water pressure test groups 3 of the same test device 1 are connected in sequence, for example, the first water pressure test group 320 and the second water pressure test group 330 are connected end to end. In the test device 1, the moving mechanism 120 of at least one water pressure test group 3 moves along the extension direction of the weld 210, and drives the remaining water pressure test groups 3 to move. This setting can enable one of the multiple water pressure test groups 3 to drive the remaining water pressure test groups 3, which can control the multiple water pressure test groups 3 to move synchronously and reduce energy waste, and can also make the driving mechanism 130 of the same test device 1 redundantly set to improve the working effect of the test device 1. Or, the number of driving mechanisms 130 is reduced to reduce the cost of the test device 1. In addition, this embodiment can also change the distance between multiple water pressure test groups 3 of the same test device 1 through the length of the connector 310, so that it can adapt to more situations.

[0078] In some other cases, the test device 1 may also include a third water pressure test group, a fourth water pressure test group, etc. This embodiment is not limited thereto, and this arrangement may further improve the test efficiency of the test device 1.

[0079] It is understandable that the multiple water pressure test groups 3 of the same test device 1 are arranged at equal distances. For example, the weld 210 can be annular, and the first water pressure test group 320 and the second water pressure test group 330 are arranged at opposite ends of the same diameter of the weld 210. Alternatively, when the test device 1 can also include a third water pressure test group, the first water pressure test group 320, the second water pressure test group 330 and the third water pressure test group are distributed in sequence, and the distance between the two adjacent ones is one third of the arc length of the weld 210. This setting can avoid mutual interference between the multiple water pressure test groups 3, and avoid the relative aggregation of the hammer points of the multiple water pressure test groups 3, which will cause resonance or deformation of the branch pipe group 2.

[0080] In this example, see Figure 3, the hammer mechanism 110 can continuously hammer the bifurcated pipe group 2, and the weld 210 of the bifurcated pipe group 2 may be damaged and leak. At this time, it is necessary to arrange personnel to observe the weld 210 on the spot, but it is extremely time-consuming and labor-intensive, and there will be safety issues for the personnel. The test device 1 of this embodiment can be provided with a camera module (not shown), which can be set toward the weld 210. The camera module includes but is not limited to a camera, a lighting lamp, etc. The camera module is used to collect image information of the weld 210. The camera module can clearly obtain the image information of the weld 210 and judge the status of the test device 1 and the bifurcated pipe group 2. For example, whether the bifurcated pipe group 2 leaks, whether the hammering point of the hammer mechanism 110 meets the preset requirements, etc. The test personnel can implement monitoring on a safer monitoring platform, prevent the test personnel from conducting on-site observation of the weld 210, avoid the test personnel from climbing on the bifurcated pipe group 2, and improve the safety of the test.

[0081] In addition, the test device 1 can save the image information of the weld 210 captured by the camera module to facilitate subsequent comparison or tracing of test results.

[0082] In another embodiment, during the hammering process of the hammering mechanism 110, the weld 210 may be slightly damaged, but it is difficult for the installer to directly observe the slight damage with the naked eye. The test device 1 of this embodiment also has a sensor (not shown), which can be a pressure sensor, etc. The sensor is used to detect the pressure value inside the bifurcated pipe group 2. Slight damage will also cause the internal pressure value of the bifurcated pipe group 2 to decrease, and the sensor can obtain the pressure value information. The installer can obtain the specific situation of the weld 210 through the pressure value information to achieve pressure testing of the bifurcated pipe group 2.

[0083] In addition, through the cooperation between the sensor and the hammer mechanism 110, the test device 1 can record the relationship between the hammer point and the pressure value. For example, when the hammer mechanism 110 hammers a certain hammer point, the pressure value changes significantly. The slight damage to the weld 210 is roughly located near the hammer point. Therefore, recording the position information of the hammer point roughly records the position information of the slight damage to the weld 210. The position information can be used for subsequent repair of the weld 210 to improve the repair efficiency of the weld 210.

[0084] In some other cases, the test device 1 may also be configured with a sound collecting mechanism, which can collect sound information when the hammering mechanism 110 hammers the pipe wall 220 to determine whether there is leakage in the weld 210 .

[0085] The technical solution adopted by the present invention can achieve the following beneficial effects: The large-scale bifurcation pipe group hydrostatic test device 1 is applied to the hydrostatic test of the bifurcation pipe group 2. Driven by the driving mechanism 130, the moving mechanism 120 can move along the weld 210, and its moving range covers the weld 210 of the entire bifurcation pipe group 2, so as to drive the hammering mechanism 110 to move to various parts of the bifurcation pipe group 2. The hammering mechanism 110 can hammer the pipe wall 220 of the bifurcation pipe, and the hammering mechanism 110 can eliminate the internal stress of the bifurcation pipe and detect whether there are hidden defects inside the weld 210, such as fine cracks. The test device 1 can automatically hammer the pipe wall 220 of the bifurcation pipe group 2, with high efficiency and reduced time cost. Driven by the driving mechanism 130, the hammering mechanism 110 and the moving mechanism 120 are cooperatively arranged to improve the consistency of the hammering force and hammering density of the large-scale bifurcation pipe group hydrostatic test device 1.

[0086] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0087] In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0088] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. A large-scale bifurcated pipe group hydraulic pressure test device, used for hydraulic pressure test of bifurcated pipe groups, wherein the bifurcated pipe groups have welds, characterized in that: The large bifurcated pipe group water pressure test device comprises: A plurality of hammering mechanisms for hammering the pipe wall of the branch pipe group, wherein the plurality of hammering mechanisms include a first hammering mechanism and a second hammering mechanism, and the first hammering mechanism and the second hammering mechanism are suitable for being respectively arranged on both sides of the weld; A guide rail, wherein the guide rail is suitable for being detachably mounted on the pipe wall of the bifurcated pipe group, and an extending direction of the guide rail is the same as an extending direction of the weld; A plurality of moving mechanisms connected to the hammering mechanism and used for driving the hammering mechanism to move along the extension direction of the weld, the moving mechanisms are movably connected to the guide rails, the plurality of moving mechanisms include a first moving mechanism and a second moving mechanism that are rotatably connected to each other, when the first moving mechanism and the second moving mechanism rotate, the hammering directions of the first hammering mechanism and the second hammering mechanism intersect; and a driving mechanism, the driving mechanism transmission-connects the hammering mechanism and the moving mechanism, the driving mechanism includes a first transmission member, a second transmission member, a coupling and a driving member that are transmission-connected, the first transmission member connects the first moving mechanism and the first hammering mechanism, the second transmission member connects the second moving mechanism and the second hammering mechanism; the coupling is connected between the first transmission member and the second transmission member.

2. The large bifurcated pipe group hydraulic test device according to claim 1, characterized in that: The hammer mechanism comprises a hammer, an elastic member and a limit member, wherein the hammer is movably arranged relative to the moving mechanism, the elastic member is arranged between the moving mechanism and the hammer, and the limit member is transmission-connected between the driving mechanism and the hammer; The limit member has a first position and a second position. When the limit member is in the first position, the limit member constrains the hammer member, the hammer member squeezes the elastic member, and the elastic member is in a force storage state. When the limit member is in the second position, the limit member releases the hammer member, and the elastic member drives the hammer member to move toward the tube wall. The driving mechanism is used to drive the limit member to switch between the first position and the second position.

3. The large bifurcated pipe group hydraulic test device according to claim 2, characterized in that: The moving mechanism is provided with an adjusting member, one end of the elastic member away from the hammer member abuts against the adjusting member, and the adjusting member is used to adjust the distance between the moving mechanism and the hammer member to change the elastic force applied by the elastic member to the hammer member; And / or, the moving mechanism includes a base plate, the hammering member is movably arranged relative to the base plate, the driving mechanism includes a transmission shaft, the transmission shaft is transmission-connected to the hammering member, the moving mechanism includes a driven wheel, the transmission shaft is provided with a driving wheel, the driving wheel is transmission-connected to the driven wheel, and under the drive of the driving wheel, the driven wheel can be movably arranged relative to the tube wall.

4. The large bifurcated pipe group hydraulic test device according to claim 1, characterized in that: The driving mechanism drives the first hammering mechanism and the second hammering mechanism to hammer the tube wall alternately.

5. The large bifurcated pipe group water pressure test device according to claim 4, characterized in that: The rotation axis between the first moving mechanism and the second moving mechanism is collinear with the rotation axis of the coupling; And / or, the moving mechanism further comprises a moving support seat, the moving support seat is connected between the first moving mechanism and the second moving mechanism, the moving support seat is used to support the first moving mechanism and the second moving mechanism, and is movably arranged with the pipe wall; And / or, the first hammering mechanism hammers the tube wall to form a first hammering point, the second hammering mechanism hammers the tube wall to form a second hammering point, and the first hammering point and the second hammering point are alternately distributed in the extension direction of the weld.

6. The large bifurcated pipe group water pressure test device according to claim 5, characterized in that: The guide rail includes a fitting part and a connecting part connected to each other, the fitting part can be detachably mounted on the pipe wall of the branch pipe group, and the fitting part is provided with a plurality of evacuation grooves so that the fitting part can be bent, and the connecting part and the moving mechanism are slidably matched; And / or, the guide rail comprises a plurality of guide rail sections, the guide rail sections are suitable for being detachably mounted on the pipe wall of the bifurcated pipe group, and the plurality of guide rail sections are connected end to end in sequence; And / or, a sprocket is provided on the moving mechanism, the sprocket is drivingly connected to one of the first transmission member and the second transmission member, a chain is fixedly provided on the guide rail, and the sprocket is meshed with the chain.

7. The large bifurcated pipe group water pressure test device according to claim 1, characterized in that: The large-scale branch pipe group water pressure testing device includes multiple water pressure testing groups, each of which has a hammering mechanism, a moving mechanism and a driving mechanism. The multiple water pressure testing groups of the same large-scale branch pipe group water pressure testing device are used to hammer multiple parts of the same weld, and the multiple water pressure testing groups hammer the branch pipe group alternately in sequence.

8. The large bifurcated pipe group water pressure test device according to claim 7, characterized in that: The large-scale bifurcated pipe group hydraulic pressure test device further comprises a connecting piece, a plurality of hydraulic pressure test groups are sequentially connected end to end, the connecting piece connects two adjacent hydraulic pressure test groups, in the hydraulic pressure test group, the moving mechanism of at least one of the large-scale bifurcated pipe group hydraulic pressure test devices moves along the extension direction of the weld, and drives the remaining large-scale bifurcated pipe group hydraulic pressure test devices to move; And / or, the large bifurcated pipe group water pressure test device has a sensor, and the sensor is used to detect the pressure value in the bifurcated pipe group; And / or, the large bifurcated pipe group water pressure testing device is provided with a camera module, and the camera module is used to collect image information of the weld.

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